The present disclosure proposes a receiving device, an abnormality detecting method, and an abnormality detecting program, which are capable of detecting an abnormality related to a reference signal after the reference signal is outputted. The receiving device includes an output part, an input part, and processing circuitry. The output part outputs a first signal that is a periodical reference signal generated based on a positioning signal to a first transmission line connected to an external device. The input part accepts an input of a second signal that is a returning signal of the first signal of the first transmission line from the external device side via a second transmission line. The processing circuitry detects an abnormality related to the reference signal based on a signal characteristic of the second signal.
A transceiver system of a pulse signal is provided with a transmission signal generator configured to generate a transmission signal, a transceiver configured to transmit a pulse signal corresponding to the transmission signal and receive an echo signal corresponding to the transmission signal from a detection range, a pulse compression filter configured to compress the echo signal received by the transceiver, and an echo-stretch filter configured to stretch the compressed echo signal with a group of weight elements being set larger for a center and being set smaller for edge sides in a depth direction.
G01S 3/48 - Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
3.
SHIP MONITORING SYSTEM, SHIP MONITORING METHOD, AND INFORMATION PROCESSOR
A ship monitoring system makes it easier to grasp a heading of another ship, and includes a first data generating part, a second data generating part, and processing circuitry. The first data generating part generates first ship data indicative of a position and a velocity of a first ship. The second data generating part generates second ship data indicative of a position and a velocity of a second ship. The processing circuitry calculates a risk value indicative of a risk of the first ship and the second ship colliding each other, for each point on an estimated course of the second ship, based on the first ship data and the second ship data, when assuming that the first ship changes the course and reaches the point. The processing circuitry displays a risk area indicative of a heading of the second ship at the point where the risk value is more than a threshold.
B63B 43/18 - Improving safety of vessels, e.g. damage control, not otherwise provided for reducing collision damage
B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
A sonar device including a transmitter, a transducer, and processing circuitry is provided. The transmitter is configured to transmit a transmission signal. The transducer is configured to project ultrasonic waves in a water body, the ultrasonic waves being generated based on the transmission signal; receive reflected ultrasonic waves from one or more objects in the water body; and generate a reception signal based on the reflected ultrasonic waves. The processing circuitry is configured to generate a plurality of reception beams based on the reception signal; detect a seafloor among the one or more objects based on the plurality of reception beams; determine a limit incidence angle at which the seafloor is detected; extrapolate a shoal line based on the limit incidence angle, the extrapolated shoal line connecting with the detected seafloor; and detect a potential shoal hazard based on a determined depth of the extrapolated shoal line.
A fish species discrimination system is provided with a signal receiver configured to receive a reflection signal from a water body, a data receiver configured to obtain fish information, and a user interface communicatively coupled to the data receiver, and configured to accept at least one user input related to at least one target fish. Further, the fish species discrimination system comprises processing circuitry communicatively coupled to the signal receiver, the data receiver, and the user interface. Further, the processing circuitry is configured to measure a depth of the at least one target fish, measure a size of the at least one target fish, and generate a display signal based at least on the depth and the size of the at least one target fish.
G01S 15/96 - Sonar systems specially adapted for specific applications for locating fish
G01S 7/539 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisation; Target signature; Target cross-section
6.
DEVICE, SYSTEM, METHOD, AND PROGRAM FOR LEARNING FISH SPECIES
To provide a fish species learning device, fish species learning system, fish species learning method and a program that can more easily and efficiently acquire annotation data for machine learning. To solve this problem, a server (20) (a fish species learning device) includes a storage unit (202) configured to store echo data of a given amount of time and a control unit (201). The control unit (201) is configured to calculate a feature value related to fish species for each fish school in the echo data of the given amount of time, group the fish schools based on a similarity of the calculated feature values, set a priority for each group based on a priority condition specified for improving an accuracy of fish species discrimination, and, based on the priority of each group, determine the group for which the echo data of the fish school is subjected to annotation processing.
To estimate specific marks related to a navigation of ships such as quays and jetties with high accuracy. The navigation supporting device (10) is provided with a candidate generating unit (30), a selecting unit (40), and a shape estimating unit (50). The candidate generating unit (30) generates a plurality of candidate line segments for constituting a target based on point cloud data including a plurality of point clouds obtained by detecting surroundings of a ship. Based on a positional relationship between the ship and the plurality of candidate line segments, the selecting unit (40) selects an estimated line segment constituting the target from the plurality of candidate line segments. Further, the shape estimating unit (50) estimates the shape of the target based on the selected estimated line segment.
A ship monitoring device includes processing circuitry that accepts a specification of a position in an image displayed on a display unit, acquires first ship data indicative of a position and a velocity of a first ship, acquires a plurality of second ship data indicative of positions and velocities of a plurality of second ships, calculates a collision risk area where a risk of the first ship colliding each of the second ships becomes more than a given value, based on the first ship data and the plurality of second ship data, and displays a plurality of ship objects indicative of the plurality of second ships, and the collision risk area disposed at corresponding positions in the image, and when a specification of the collision risk area is accepted, displays the ship object corresponding to the specified collision risk area so as to be discriminated from other ship objects.
A ship monitoring device includes processing circuitry that acquires first and second ship data indicative of a position and a velocity of a first ship and a second ship. It identifies, a first area of an estimated course of the second ship, where a risk of the first ship and the second ship colliding with each other becomes more than a given value, and a second area separated from the first area in a traveling direction of the second ship. It displays a first collision risk area including the first area, and a second collision risk area including the second area, and displays an end part of the first collision risk area on the second area side and an end part of the second collision risk area on the first area side so as to be discriminated from the remaining end parts.
B63B 49/00 - Arrangements of nautical instruments or navigational aids
B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
11.
NAVIGATION ASSISTANCE DEVICE AND NAVIGATION ASSISTANCE METHOD
[Problem] To accurately estimate information indicating the state of a ship before docking. [Solution] This navigation assistance device comprises a ship state detection sensor, a pier information detection unit, and a deviation angle calculation unit. The ship state detection sensor detects the bow orientation. The pier information detection unit detects the pier line of a pier. The deviation angle calculation unit calculates a deviation angle on the basis of the bow orientation and the pier line, the deviation angle being an angle formed by the bow-stern direction of the ship and the direction in which the pier line extends.
[Problem] To provide highly accurate information indicating the state of a ship until docking. [Solution] This navigation assistance device is provided with a ship state detection sensor and a ship track calculation unit. The ship state detection sensor detects ship position and ship acceleration. The ship track calculation unit calculates a ship track on the basis of the ship position and the ship acceleration.
B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
B63B 21/00 - Tying-up; Shifting, towing, or pushing equipment; Anchoring
B63B 49/00 - Arrangements of nautical instruments or navigational aids
B63B 79/10 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
13.
NAVIGATION ASSISTANCE DEVICE AND NAVIGATION ASSISTANCE METHOD
[Problem] To highly accurately estimate information indicating a ship state until docking. [Solution] This navigation assistance device comprises a host ship state detection sensor, a quay wall information detection unit, a motion state calculation unit, a distance calculation unit, and an arrival state calculation unit. The host ship state detection sensor detects a host ship location, a host ship velocity, and a bow heading. The quay wall information detection unit detects a quay wall line of the quay wall where the host ship is docking. The motion state calculation unit calculates the velocity in the direction of the quay wall on the basis of the host ship velocity, the bow heading, and the line of the quay wall. The distance calculation unit calculates the distance between the host ship and the quay wall on the basis of the host ship location and the quay wall. The arrival state calculation unit calculates an arrival state including at least one among a quay wall arrival prediction time of the host ship, a prediction velocity at the time when the host ship arrives at the quay wall, and a deflection angle at the time when the host ship arrives at the quay wall on the basis of the velocity in the direction of the quay wall and the distance between the host ship and the quay wall line.
The purpose is to provide a dual-frequency fish finder, a dual-frequency transmission method, and a program capable of suppressing noise based on interference waves of other frequencies in an echo image of each frequency when transmission waves of two frequencies are transmitted. A dual-frequency fish finder includes a processing circuitry. The processing circuitry is configured to transmit a first frequency signal during a reception period of the second frequency signal in a second transmission cycle between a transmission timing of the second frequency signal and an ending timing of a reception period of the first frequency signal, and to transmit the second frequency signal, having a different frequency from the first frequency signal, during a reception period of the first frequency signal in a first transmission cycle between a transmission timing of the first frequency signal and an ending timing of a reception period of the second frequency signal.
A fish finder system is provided with a capture device information input terminal configured to input a capture device information, a capture device dropping point input terminal configured to input a dropping point at which a capture device is dropped, a tidal current input terminal configured to input tidal current information including a tidal current direction and a tidal current speed, and processing circuitry communicatively coupled to the capture device information input terminal, the capture device dropping point input terminal, and the tidal current input terminal. The processing circuitry is configured to calculate a drift amount of the capture device relative to the dropping point and calculate a capture device arrival point at which the capture device arrives in the water.
The present disclosure relates to provide a power distributor. A power distributor includes a dielectric substrate, a rectangular patch resonator, a first input terminal, a first output terminal, and a second output terminal. The rectangular patch resonator is configured to be formed on the dielectric substrate, having a width corresponding to 1/2 wavelength of a fundamental wave, having an input side and an output side mutually facing, extending in the width direction. The first input terminal is configured to be connected to a first side relative to a center of the input side. The first output terminal is configured to be connected to the first side relative to the center of the output side. The second output terminal is configured to be connected to a second side opposite to the first side relative to the center of the output side.
The present disclosure relates to provide an antenna apparatus, a transmitter, and a radar. An antenna apparatus includes a dielectric substrate, a first patch antenna and a second patch antenna configured to be formed adjacent to each other on a first principal surface of the dielectric substrate; an antenna pattern including a first transmission line and a second transmission line, electrically connecting the first patch antenna and the second patch antenna, respectively; and a ground pattern formed on a second principal surface opposite to the first principal surface of the dielectric substrate; wherein the first transmission line and the second transmission line are configured to be formed by maintaining a predetermined interval, and the interval between some modules are wider than an interval between other modules.
A waveguide filter is provided. The waveguide filter comprises at least one waveguide resonator that resonates radio waves in a TE mode. The waveguide resonator is provided with a coupling window to which an input waveguide line or an output waveguide line is connected. The coupling window has two long sides extending in a longitudinal direction and facing in a short-side direction, wherein a middle part of at least one of two long sides is farther from another long side than both side parts. Selection Diagram: Figure 2
A filter apparatus is provided. The filter apparatus comprises a resonator with adjustment, an adjustment section, a first propagation path, and a second propagation path. The resonator with adjustment propagates a fundamental wave and harmonics of the fundamental wave. The adjustment section is provided in the resonator with adjustment for adjusting a phase of the harmonics of the fundamental wave to an opposite phase. The first propagation path is formed via the resonator with adjustment, and the second propagation path is formed not via the resonator with adjustment. The harmonics of the fundamental wave adjusted to the opposite phase propagating through the first propagation path, and the harmonics of the fundamental wave propagating through the second propagation path are synthesized. Selection Diagram: Figure 2
The present disclosure provides an image generating device that includes processing circuitry configured to acquire positional information indicative of a position of a water-surface movable body where an imaging device is to be installed, acquire posture information indicative of a posture of the water-surface movable body, acquire additional display information including information indicative of positions of a plurality of locations, generate three-dimensional display data for displaying a graphic indicative of the additional display information by superimposedly placing the graphic on a water surface portion of an image outputted from the imaging device based on the positional information, the posture information, and the positions of the plurality of locations included in the additional display information, and output the graphic rendering the three-dimensional display data.
A time until highly accurate position measurement starts is estimated. The positioning device includes processing circuitry configured to perform position measurement using carrier phases of a plurality of position measurement signals to calculate a position measurement result and an accuracy index of the position measurement result. The processing circuitry estimates the predicted convergence time of the position measurement based on the accuracy index.
To provide a fish species learning device, a fish species learning method and a program that can perform machine learning for fish species identification with better accuracy. To solve this problem, a server 20 (fish species learning device) includes a storage unit (202) that stores annotation data for each unit echo image (Pn, Pn+1), and a control unit (201). The control unit (201) extracts a first annotation data and a second annotation data of a fish school extending over a first unit echo image (Pn) and a second unit echo image (Pn+1) from the annotation data of the first and second unit echo images, respectively, the first and second unit echo images (Pn, Pn+1) being temporally consecutive in time and generates the annotation data of the entire fish school that extends over the first and second unit echo images by integrating the extracted first and second annotation data.
A ship monitoring system includes processing circuitry. The processing circuitry estimates an estimated position of a first ship after a first period of time in each direction, based on first ship data including a position and a velocity of the first ship, by using a first formula, in case assuming that the first ship travels after the first ship changed the course at the current position into an arbitrary direction. The processing circuitry estimates an estimated course of a second ship and an estimated position of the second ship after a second period of time, that is included in the estimated course of the second ship, based on second ship data including a position and a velocity of the second ship, by using a second formula.
A patch array antenna, an antenna, and a Radio Detecting and Ranging (RADAR) apparatus are disclosed. The patch array antenna is provided with a dielectric substrate and a plurality of antenna elements formed on the dielectric substrate. The patch array antenna is arranged in a first direction (longitudinal direction L) and connected in series. At least one terminal of at least one input terminal and at least one output terminal connected to at least one antenna element among the plurality of antenna elements is connected at a position away from the centerline extending in the first direction of the antenna element. The antenna includes a plurality of patch array antennas and the RADAR apparatus is formed using the antenna.
G01S 7/03 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
H01Q 21/08 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a rectilinear path
A slot array antenna includes a waveguide and a horn. The waveguide has a first surface including multiple slots arranged along a longitudinal direction of the first surface to radiate radio waves. The width of the first surface in the lateral direction is greater than half of a wavelength of the radio waves. The horn, fixedly attached to the waveguide, enlarges towards a radiation direction of the radio waves. The horn has upper and lower portions bent inwards twice with respect to a lateral direction of the first surface to form first and second narrow openings. An opening width of the first narrow opening is less than the width of the first surface. An opening width of the second narrow opening is less than or equal to two fifth of the wavelength. Thus, a side lobe generated due to horizontal polarization of the radio waves is suppressed.
A temperature of an electronic circuit device such as an integrated circuit is measured with high accuracy. The electronic circuit device (10) includes a main processor (20) and a temperature measurement module (30). The main processor (20) can execute predetermined signal processing. The temperature measurement module (30) generates a signal having a correspondence relationship with the temperature of the main processor (20) under a mode in which the temperature measurement module is driven at a predetermined low power consumption or less and the thermal resistance between the temperature measurement module and the main processor (20) is a predetermined thermal resistance value or less.
G01K 7/20 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit
G01K 15/00 - Testing or calibrating of thermometers
27.
NON-TRANSITORY COMPUTER READABLE MEDIUM, ESTIMATION METHOD, AND ESTIMATION DEVICE
Provided is a generation method for a learning model that can efficiently estimate altitude-by-altitude water vapor densities or precipitable water amounts. According to the present invention, a generation method for a learning model involves: acquiring training data that includes first measurement data measured by a microwave radiometer and altitude-by-altitude water vapor densities or precipitable water amounts obtained from second measurement data measured by a radiosonde: and, on the basis of the acquired training data, generating a learning model that, when first measurement data has been inputted, outputs altitude-by-altitude water vapor densities or precipitable water amounts.
G01W 1/10 - Devices for predicting weather conditions
G01N 22/00 - Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
[Problem] To more suitably control the frequency of a carrier signal given to a mixer in a tuning process. [Solution] An automatic tuning device comprises: an output unit that outputs a tuning control voltage for adjusting the frequency of a carrier signal to be given to a mixer; an acquisition unit that acquires a tuning instruction voltage which indicates the intensity of a component of a prescribed frequency in an output signal of the mixer; a setting unit that sets a reference value on the basis of a prescribed range, which includes a first level that is a tuning control voltage corresponding to the maximum tuning instruction voltage, in a first period; a calculation unit that calculates an index value on the basis of the result of scanning of a first range including the first level, in a second period; and a determination unit that determines the output level of a tuning control voltage which is output by the output unit, on the basis of the result of comparing the index value and the reference value.
G01S 7/28 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of pulse systems
29.
FISH SPECIES DISCRIMINATION SYSTEM, SERVER, FISH SPECIES DISCRIMINATION METHOD AND PROGRAM
To provide a fish species discrimination system, a server, a fish species discrimination method, and a program that can improve the accuracy of fish species discrimination results using a machine learning model. To solve this problem, a fish species discrimination system 1 comprises an echo data acquisition unit 110 that acquires echo data in water, a storage unit 202, and a control unit 201. The storage unit 202 stores a machine learning model that outputs prediction probabilities for each fish species based on the echo data, know-how information for each fish species related to the fish school set by the user, and a know-how model that modifies prediction probabilities for each fish species based on the know-how information. The control unit 201 determines the fish species of the fish school based on the modification result obtained by modifying the prediction probabilities for each fish species acquired by the machine learning model by the know-how model.
[Problem] To achieve a desired filter characteristic by suppressing the influence caused by a dielectric substrate. [Solution] This filter 10 comprises: a dielectric substrate 90; a first strip line that is formed on the dielectric substrate 90; resonators 20, 30 that are coupled to the first strip line; and a second strip line that is coupled to the resonators 20, 30 and that is formed on the dielectric substrate 90. The resonators 20, 30 each comprise: a plurality of inductor elements each constituted by a rectangular conductor formed on the dielectric substrate 90 and having a long side direction and a short side direction; and capacitor elements that connect the plurality of inductor elements. The resonators 20, 30 each include a series resource circuit constituted by the plurality of inductor elements and the capacitor elements. The length of each inductor element in the long side direction is equal to or less than the half-wavelength of electromagnetic waves transferred by the filter 10.
[Problem] To provide an underwater detecting device, a transmission condition optimization method, and a program capable of simply and accurately optimizing a transmission condition of an ultrasonic transducer included in a transducer. [Solution] A fish detecting device 100 (underwater detecting device) comprises: a transmission circuit 103 for supplying a transmission voltage and a transmission current to an ultrasonic transducer 21; a transmission voltage measuring circuit 108 for measuring the transmission voltage supplied to the ultrasonic transducer 21; a transmission current measuring circuit 109 for measuring the transmission current supplied to the ultrasonic transducer 21; and a control circuit 101 for optimizing a transmission condition of the ultrasonic transducer 21 on the basis of the transmission voltage measured by the transmission voltage measuring circuit 108 and the transmission current measured by the transmission current measuring circuit 109.
To more reliably achieve the turn intended by the operator without making major system changes. The ship control device is provided with an input unit for inputting a maneuvering command value related to the operation control of the ship and a control unit for generating and outputting a steering angle command signal and a throttle command signal to the ship based on the maneuvering command value. If the maneuvering command value is in the intermittent control range, the control unit outputs a throttle command signal with an intermittent control waveform having a Hi level and a Low level.
B63H 25/42 - Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
33.
APPARATUS AND METHOD FOR CHECKING STIRRING QUALITY OF A CHEMICAL ANALYZER
The present disclosure provides an apparatus (200) for checking stirring quality of a chemical analyzer (100). The apparatus includes a stirrer (202) configured to generate agitation of a test liquid (210) in a first cuvette (212). The apparatus includes a convection generator (208) configured to generate thermal convection of the test liquid. The thermal convection is generated due to temperature difference caused by providing different temperature to the first cuvette. The apparatus includes a photometric device (204) configured to radiate light through the test liquid and continuously generate an output signal upon receipt of the radiated light through the test liquid. Further, the apparatus includes a determination module (206) configured to determine photometric data associated with absorbance values of the test liquid. The determination module is configured to determine at least one metric representing the stirring quality of the test liquid based on the photometric data.
To provide a fish species discrimination method, a server, a program that can improve the accuracy of fish species discrimination results by machine learning models, and a fish species discrimination system. To solve this problem, a fish species discrimination method acquires feedback information associating echo data with fish species, stores the acquired feedback information by associating the feedback information with attributes including at least the fishing styles are used, generates an individual model (312) for fish species discrimination for each attribute by machine learning using multiple feedback information for which the attributes are identical, and uses the generated individual models to determine fish species by echo signal being transmitted into water body and reflected by an object in the water body corresponding to the attributes.
A navigation route planning apparatus includes processing circuitry configured to receive a planned route indicating a route and a current course direction of a movable body, receive movable body information that includes a position, a travelling direction, and a speed of the own ship, receive obstacle information that includes a position, a traveling direction, and a speed of an obstacle, determine a collision risk value associated with the planned route along the current course direction based on the movable body information and the obstacle information, and determine whether the movable body requires to at least one of evade the planned route and continue traversing on the planned route based on the collision risk value.
A disturbance estimation apparatus including a navigation data receiver, a thrust data receiver, and processing circuitry is provided. The navigation data receiver acquires navigation data including an actual position and time of the ship on a water surface. The thrust data receiver receives thrust data indicating a magnitude and a direction of a thrust force of the ship. The processing circuitry estimates a predicted position of the ship under an absence of a disturbance condition at a predetermined time in the future using a first state estimation model based on the navigation data and the thrust data and determines disturbance data including a drift direction of the ship drifted by an external force based on a difference between the predicted position estimated by the first state estimation model and an actual position of the ship at the predetermined time.
A slot array antenna that includes radiation, base, and grating plates is disclosed. The radiation plate has a first surface having multiple slots to radiate radio waves, second and third surfaces forming a horn shape, and proximal and distal connecting members. The base plate has first, second, and third surfaces forming a U-shape, and notches. The connecting members of the radiation are removably insertable into the notches to assemble the slot array antenna for the radiation of the radio waves and to suppress noise signals.
A disturbance estimation apparatus including a navigation data receiver, a thrust data receiver, and processing circuitry is provided. The navigation data receiver acquires navigation data including an actual position and time of the ship on a water surface. The thrust data receiver receives thrust data indicating a magnitude and a direction of a thrust force of the ship. The processing circuitry estimates a predicted position of the ship at a future point in time and a predicted arrival time of the ship to reach the predicted position by inputting the navigation data and the thrust data into a first trained model, and determines disturbance data including a drift direction and drift speed of the ship drifted by an external force based on a difference between the predicted position estimated by the first trained model and the actual position of the ship at the predicted arrival time.
B63B 79/15 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers for monitoring environmental variables, e.g. wave height or weather data
B63H 25/04 - Initiating means for steering automatic, e.g. reacting to compass
B63B 49/00 - Arrangements of nautical instruments or navigational aids
An obstruction zone generation device (3) for a movable body (1) includes a calculation information generation module (31) to generate calculation information based on sensor information acquired by one or more information acquisition devices (2), an obstruction zone calculation module (32) to calculate an obstacle zone by target (OZT) for each target ship of one or more target ships (204a-204d) and generate OZT information, a mask area determination module (33) to determine for each target ship of the one or more target ships (204a-204d) whether to mask the OZT of the respective target ship in the OZT information based on a direction of the respective target ship and generate output information, and a display information generation module (34) configured to generate OZT display information for displaying the OZT of the one or more target ships (204a-204d) based on the output information and the OZT information.
B63B 43/18 - Improving safety of vessels, e.g. damage control, not otherwise provided for reducing collision damage
B63B 49/00 - Arrangements of nautical instruments or navigational aids
B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
Various embodiments of the present disclosure provide an apparatus and method for determining the target area associated with the vessel. The apparatus includes a motion data receiver and processing circuitry. The motion data receiver is configured to determine a motion-related data of a vessel. The processing circuitry is communicably coupled to the motion data receiver. Further, the processing circuitry is configured to cause the apparatus to determine a change in a moving direction of the vessel based at least on the motion-related data of the vessel. Furthermore, the processing circuitry is configured to adaptively determine a target area associated with the vessel based on the change in the moving direction of the vessel, thereby enabling the apparatus to determine the target area based on the change in the moving direction of the vessel.
An underwater detection device includes a transmitter, a receiver, an actuator, a controller, and a signal processor. The transmitter transmits a transmission wave. The receiver receives a reflection wave of the transmission wave. The actuator rotates the transmitter and the receiver in a mutually synchronized fashion. The controller makes the transmitter transmit a plurality of transmission waves at mutually different frequencies in order, for every given unit rotation angle. The signal processor generates an echo signal for indication in a direction of the unit rotation angle based on a reception signal at each of the frequencies acquired from a range of the unit rotation angle.
G01S 15/42 - Simultaneous measurement of distance and other coordinates
G01S 7/52 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
G01S 15/89 - Sonar systems specially adapted for specific applications for mapping or imaging
42.
SHIP INFORMATION SHARING SYSTEM, SHIP INFORMATION SHARING APPARATUS, AND SHIP INFORMATION SHARING METHOD
[Problem] To provide a ship information sharing system wherein information displayed on the reception side can be grasped on the transmission side. [Solution] This ship information sharing system comprises: a radar that is equipped on a ship and generates echo data including echo intensity values for bearings and distances with reference to the ship; a ship information sharing apparatus that generates volume-reduced echo data having a less data volume than the echo data, and displays information based on the volume-reduced echo data; a communication device that transmits the volume-reduced echo data to the outside of the ship; and a ship information collection apparatus that acquires the transmitted volume-reduced echo data and displays the information based on the volume-reduced echo data.
[Problem] To calculate a highly reliable precision index using only a GNSS signal. [Solution] This position measurement device 10 comprises a reception unit 20, a position measurement calculation unit 30, an individual precision index calculation unit 41, and an integrated precision index calculation unit 42. The reception unit 20 receives position measurement signals from a plurality of position measurement satellites SAT. The position measurement calculation unit 30 uses the received plurality of position measurement signals to perform a position measurement calculation. The individual precision index calculation unit 41 uses an error covariance matrix used in the position measurement calculations, a carrier phase from the position measurement signal, or a position measurement result from the position measurement calculations to calculate a plurality of mutually different individual precision indexes. The integrated precision index calculation unit 42 uses the plurality of individual precision indexes to calculate an integrated precision index.
[Problem] To provide a ship information sharing device capable of sharing echo data while suppressing an amount of data. [Solution] This ship information sharing device comprises: an acquiring unit for acquiring echo data generated by a radar installed in a ship, the echo data including echo intensity values for each azimuth and distance relative to the ship; a thinning-out processing unit for thinning out values corresponding to at least one of an azimuth direction and a distance direction, among the echo intensity values included in the echo data, to generate lightweight echo data having a smaller amount of data than the echo data; and a transmission processing unit for transmitting the lightweight echo data to the outside of the ship.
[Problem] To provide a ship information sharing device capable of sharing an amount of navigation related data suited to a communication channel capacity. [Solution] This ship information sharing device comprises: an acquiring unit for successively acquiring navigation related data relating to navigation of a ship, detected by means of a detecting appliance installed in the ship; a communication channel capacity acquiring unit for acquiring a communication channel capacity of a communication channel to a ship information collecting device; a thinning-out processing unit which, in accordance with the communication channel capacity, changes a frequency at which the navigation related data are included in a transmission dataset that is successively transmitted to the ship information collecting device; and a transmission processing unit for transmitting the transmission dataset to the ship information collecting device.
This analysis system 1 comprises: an electric stimulus device 2 which applies an electric stimulus formed of short pulses on a muscle; an ultrasonic wave pulse echo device 3 which transmits ultrasonic waves to the muscle and receives a reflected ultrasonic wave; and an analysis unit 33 which analyzes, on the basis of the reflected ultrasonic wave, contraction characteristics of the muscle at the time of a simple contraction response of the muscle with respect to the electric stimulus.
A disturbance estimation apparatus that includes a position data receiver, a thrust data receiver, and processing circuitry is provided. The position data receiver receives position data indicating a position of a ship. The thrust data receiver receives thrust data indicating a thrust force driving the ship during navigation. The processing circuitry determines a magnitude of the thrust force based on the thrust data, and determines, based on the position data, disturbance data including a drift direction in which the ship drifts due to an external force and a drift speed of the ship while the thrust force is less than a threshold value. The processing circuitry outputs the disturbance data that indicates disturbance acting on the ship and assists to control movement of the ship for automatically maintaining a selected position or heading direction of the ship.
G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
G05B 11/36 - Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
G05D 1/08 - Control of attitude, i.e. control of roll, pitch, or yaw
G01S 19/01 - Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
Proper setting of feedback control according to the ship.
Proper setting of feedback control according to the ship.
The ship control device includes processing circuitry configured to set the ship characteristic parameters of the combined system of first order lag and dead time, which integrates the behavior of the rudder and the behavior of the ship. Using the ship characteristic parameters, the processing circuitry is further configured to calculate the control parameters of feedback control with respect to the rudder angle of the rudder. Using the control parameters, the processing circuitry is further configured to perform feedback control.
B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
B63H 25/04 - Initiating means for steering automatic, e.g. reacting to compass
G05D 1/02 - Control of position or course in two dimensions
49.
AUGMENTED REALITY VESSEL MANEUVERING SYSTEM AND METHOD
Various embodiments of the present disclosure provide an augmented reality (AR) vessel maneuvering system and method capable of intuitively and easily setting at least one of: a target position and an attitude of a vessel. The AR vessel maneuvering system includes processing circuitry configured to generate an image including a vessel object representing a vessel in a region corresponding to a viewpoint position and a line-of-sight direction, superimpose and display the image including the vessel object on an outside scene of the region corresponding to the viewpoint position and the line-of-sight direction, detect an operation on the vessel object displayed in the image, and output a command to a navigation device used for navigating the vessel to execute a navigation operation corresponding to the operation on the vessel object. The navigation device is a marine navigation device.
The present disclosure provides a frequency deviation estimation device for estimating a frequency deviation upon receiving a digitally modulated non-repetitive signal. The frequency deviation estimation device is equipped with an instantaneous frequency measurement module, a minimum frequency detection module, and a frequency deviation calculation module. The instantaneous frequency measurement module measures the instantaneous frequency of the received communication signal. The minimum frequency detection module detects the minimum frequency of the instantaneous frequency. The frequency deviation calculation module calculates the frequency deviation between the received communication signal and the reference signal for coarse adjustment using the reference minimum frequency and the minimum frequency when the frequency deviation is zero Hertz.
An autonomous cruising system is capable of discriminating a port sign and a starboard sign without depending on a position of a ship. The system includes processing circuitry that acquires an image generated by a camera installed in a ship. The processing circuitry identifies whether a mode of a lateral buoy included in the image is either a first mode or a second mode. The processing circuitry determines a country to which a position of the ship detected by a position detector belongs. The processing circuitry determines whether description of a sign of the lateral buoy is the port sign or the starboard sign, from the mode of the lateral buoy and the determined country, based on a given correspondence relationship indicative of whether each of the first mode and the second mode corresponds to either one of the port sign and the starboard sign in each country.
A timing detection device includes a main reference code generation module, an auxiliary reference code generation module, a first correlation processing module, a second correlation processing module, and a subtraction module. The main reference code generation module generates a main reference code consisting of the same code for synchronization included in a received signal. Using a portion of the same code as the code for synchronization, the auxiliary reference code generation module generates an auxiliary reference code consisting of a code configuration different from the main reference code and without generating a main lobe during correlation processing. The first correlation processing module correlates the received signal with the main reference code and outputs a first correlation result. The second correlation processing module correlates the received signal with the auxiliary reference code and outputs a second correlation result. The subtraction module subtracts the first correlation result from the second correlation result.
The present disclosure provides an autonomous cruising system capable of improving an accuracy of identifying description of a sign. The autonomous cruising system includes processing circuitry. The processing circuitry acquires a first image including a buoy from a camera installed in a ship. The processing circuitry identifies a position of the buoy inside the first image. The processing circuitry acquires a second image corresponding to a partial area of the first image including the position of the buoy, and the second image is higher in resolution than the first image. The processing circuitry identifies description of a sign of the buoy based on the second image.
B63B 49/00 - Arrangements of nautical instruments or navigational aids
G06T 7/70 - Determining position or orientation of objects or cameras
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
H04N 23/695 - Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
H04N 23/69 - Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
B63B 79/10 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
G01C 21/20 - Instruments for performing navigational calculations
A demodulation device includes a phase rotation module, a phase adjustment module, a phase comparison module, and a reference signal generation module. The phase rotation module rotates phases of an I-Phase signal and a Q-Phase signal in a received signal of a multilevel PSK signal using a reference signal. The phase adjustment module adjusts the phases of the phase rotated I-Phase signal and the phase rotated Q-Phase signal output from the phase rotation module by multiplying the phases of the I-Phase signal and the Q-Phase signal with an integer value to generate a phase adjusted I-Phase signal and a phase adjusted Q-Phase signal. The phase comparison module compares the phase of the phase adjusted I-Phase signal with the phase of the phase adjusted Q-Phase signal to generate a phase comparison result. Also, the reference signal generation module generates a reference signal using the phase comparison result.
A radar signal processing device includes: a shielding length calculating unit (61) which calculates, based on a reception signal received by an antenna that transmits and receives radio waves, a shielding length (L2), which is the horizontal length of a region where a transmission signal transmitted from the antenna is shielded by a shielding object (13) above a reference plane; and a vertical height calculating unit (62) which calculates, based on the shielding length and the positional relationship between the shielding object and the antenna, the height (H2) of the shielding object from the reference plane.
[Problem] To reduce processing load for demodulation processing. [Solution] This ship information exchange device comprises: a reception unit that receives a radio signal; a generation unit that generates, from the radio signal, reception data of a plurality of channels for use in transmitting ship information; a detection unit that detects a reception level for each of the channels; and a demodulation unit that demodulates the reception data. The demodulation unit determines the reception data to be demodulated depending on a detection result of the reception level.
A target object detecting device including first and second transmission signal generators, a wave transmitting array, first and second switches, and a controller is disclosed. The first and second transmission signal generators generate first and second transmission signals, respectively. The wave transmitting array has a plurality of wave transmitting elements which convert the first and second transmission signals into transmission waves. The first switch supplies the first transmission signal to one of the wave transmitting elements. The second switch supplies the second transmission signal to one of the wave transmitting elements. The controller performs a control in which the first switch switches the wave transmitting element to which the first transmission signal is supplied, from an element n to an element n+1, and the second switch switches the wave transmitting element to which the second transmission signal is supplied, from an element m to an element m+1.
G01S 7/534 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of non-pulse systems
G01S 15/96 - Sonar systems specially adapted for specific applications for locating fish
G01S 15/04 - Systems determining presence of a target
58.
AUTOMATIC STEERING DEVICE, AUTOMATIC STEERING SYSTEM, AUTOMATIC STEERING METHOD, AND AUTOMATIC STEERING PROGRAM
To control an automatic steering appropriately regardless of a ship speed.
To control an automatic steering appropriately regardless of a ship speed.
An automatic steering device includes processing circuitry. The processing circuitry acquires motion information including a ship length and a ship speed. The processing circuitry identifies a non-dimensionalizing motion parameter based on the ship length and the motion information. The processing circuitry generates a dimensionalizing motion parameter by dimensionalizing the non-dimensionalizing motion parameter based on the ship speed. The processing circuitry sets a control parameter of the model-based controller based on the dimensionalizing motion parameter.
The present disclosure provides a ship monitoring system capable of improving legibility of an OZT. The ship monitoring system includes a first data generator, a second data generator, and processing circuitry. The first data generator generates first ship data indicative of a position and a velocity of a first ship. The second data generator generates second ship data indicative of a position and a velocity of a second ship. The processing circuitry calculates a risk value indicative of a risk of a collision between the first ship and the second ship based on the first ship data and the second ship data, for each point on an estimated course of the second ship, when the first ship is assumed to change a course and reach the point. The processing circuitry specifies a range where two or more continuous points have the risk values above a threshold. The processing circuitry displays a risk range including the range where the two or more continuous points have the risk values above the threshold.
An automatic steering device includes an acquirer, and processing circuitry. The acquirer acquires a traveling state including a heading or a position of a ship, and ship information on the ship. The processing circuitry calculates a first evaluation value that is an evaluation value indicative of a performance for maintaining the heading of the ship or a route based on the traveling state. The processing circuitry calculates a second evaluation value that is an evaluation value related to a ship handling control based on the ship information. The processing circuitry sets a control parameter related to a motion control of the ship based on the first evaluation value or the second evaluation value.
A learning model generation method, a program, an information processing method, an information processing device, and an information processing system have been disclosed. The learning model 12M generation method being processed by a computer, includes acquiring training data including time-series data. The time-series data relates to a remaining liquid in an analyzer 30 after a liquid is discharged by a drain pump. Further, the method includes generating the learning model 12M based on the acquired training data. The learning model 12M is configured to output the information related to the failure of the drain pump when time-series data relating to the remaining liquid is inputted.
G06F 17/18 - Complex mathematical operations for evaluating statistical data
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
62.
SHIP MONITORING SYSTEM, SHIP MONITORING METHOD, AND INFORMATION PROCESSING DEVICE
The present disclosure provides a ship monitoring system which makes it easy for a user to grasp a change in a risk situation. The ship monitoring system includes a first data generator, a second data generator, processing circuitry, and an alarm sounding part. The first data generator generates first ship data indicative of a position and a velocity of a first ship. The second data generator generates second ship data indicative of a position and a velocity of a second ship. The processing circuitry calculates a risk value indicative of a risk of a collision between the first ship and the second ship based on the first ship data and the second ship data. The processing circuitry generates a discontinuous sound pattern with an interval according to the risk value. The alarm sounding part sounds an alarm according to the discontinuous sound pattern.
A ship monitoring system has a first data generator that generates first ship data indicative of a position and a velocity of a first ship. The second data generator generates second ship data indicative of a position and a velocity of a second ship. The processing circuitry specifies a risk range where a ship area occupied by the first ship or a watch area set around the first ship overlaps with a ship area occupied by the second ship or a watch area set around the second ship, among an estimated course of the second ship, based on a position of the first ship and a position of the second ship at each timing, that are estimated from the first ship data and the second ship data, when assuming that the first ship changes a course to an arbitrary direction and crosses the estimated course of the second ship.
B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
B63B 49/00 - Arrangements of nautical instruments or navigational aids
64.
ANALYSIS DEVICE, PROGRAM, CORRECTION MEMBER, AND PROTECTION MEMBER
[Problem] To provide an analysis device or the like which reduces a dead volume of content contained in a container. [Solution] This analysis device 1 comprises: a nozzle 621 which performs, towards a container rack 121, a lowering operation from a lowering operation reference position 620; a contact detection unit 622 which detects a contact between the nozzle 621 and an object disposed in the container rack 121; and a control unit 8 which lowering-operates the nozzle 621 from the lowering operation reference position 620 in a state where a correction member 91 having a correction reference surface 911 is disposed in the container rack 121; calculates a correction distance L(n) between the lowering operation reference position 620 and a correction reference position 629 at which the contact between the nozzle 621 and the correction reference surface 911 is detected, and adjusts, on the basis of the correction distance L(n), a lowering distance of the nozzle 621 in the lowering operation of the nozzle 621 with respect to a container 122 disposed in the container rack 121.
A ship state including a rudder angle is estimated with high accuracy. A ship state estimator device is equipped with processing circuitry. The processing circuitry acquires an direction signal indicating an direction of a ship. The processing circuitry inputs the direction signal into a ship state estimator that outputs a ship state including a rudder angle, and estimates the ship state including the rudder angle.
The present disclosure provides a ship monitoring system capable of visualizing a risk of a collision or an approach in a width direction perpendicular to a heading of another ship. The ship monitoring system includes a first data generator, a second data generator, and processing circuitry. The first data generator generates first ship data indicative of a position and a velocity of a first ship. The second data generator generates second ship data indicative of a position and a velocity of a second ship. The processing circuitry specifies a risk range where a risk value indicative of a risk of a collision between the first ship and the second ship is above a threshold among an estimated course of the second ship, based on a position of the first ship and a position of the second ship at each timing, that are estimated from the first ship data and the second ship data, when assuming that the first ship changes a course to an arbitrary direction and crosses the estimated course of the second ship. The processing circuitry further display a polygonal OZT (Obstacle Zone by Target) having vertexes at least comprised of a rear end and a front end of the risk range, and a representative point of the first ship located at a position corresponding to the rear end of the risk range.
Provided are a computer program, a learning model generation method, an image processing device, an image processing system, and an image processing method with which it is possible to accurately identify the portion of a muscle. The computer program causes a computer to execute a process of: acquiring a medical image including a muscle part; inputting the acquired medical image into a second learning model trained to output region information for the whole muscle part when a medical image is inputted thereinto; outputting region information for the whole muscle part; generating a whole muscle part image on the basis of the outputted region information for the whole muscle part; inputting the acquired medical image and the generated whole muscle part image into a first learning model trained to output region information for each muscle portion of the muscle part when a medical image and a whole muscle part image are inputted thereinto; and outputting region information for each of the muscle portions.
A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
A61B 5/107 - Measuring physical dimensions, e.g. size of the entire body or parts thereof
[Problem] To provide a landmark monitoring device that can perform image recognition suited to a setting. [Solution] This landmark monitoring device comprises: an image acquisition unit that acquires an image, including a landmark at sea, that was captured by a camera installed on a ship; a setting determination unit that determines whether the image was captured during the day or night; a daytime image recognition unit that detects the landmark included in the image, using a daytime learned model if the image is determined to have been captured during the day; and a nighttime image recognition unit that detects a landmark included in the image, using a nighttime learned model if the image is determined to have been captured at night.
[Problem] To provide a target monitoring system that easily associates a target detected from an image captured by a camera and a target detected by another detection device. [Solution] A target monitoring system includes: a camera mounted on a ship; a detection device that is mounted on the ship and detects the actual position of a target present around the ship; an image recognition unit that detects the in-image position of the target included in an image captured by the camera; a distance estimation unit that estimates the range of the distance from the ship to the target on the basis of the in-image position of the target; and a target identification unit that identifies the target detected from the image and the target detected by the detection device, on the basis of the estimated range of the distance and the detected actual position.
The present disclosure provides a ship monitoring system capable of appropriately evaluating risks of collisions for a plurality of other ships which constitute a convoy. The ship monitoring system includes a first data generator, a second data generator, and processing circuitry. The first data generator generates first ship data indicative of a position and a velocity of a first ship. The second data generator generates a plurality of second ship data indicative of positions and velocities of a plurality of second ships. The processing circuitry calculates a risk value indicative of a risk of a collision between the first ship and each of the plurality of second ships based on the first ship data and the plurality of second ship data. The processing circuitry determines whether the plurality of second ships are a convoy based on the plurality of second ship data. The processing circuitry selects a representative value from the risk values calculated for the plurality of second ships determined to be the convoy.
B63B 49/00 - Arrangements of nautical instruments or navigational aids
B63B 79/10 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
G01S 13/58 - Velocity or trajectory determination systems; Sense-of-movement determination systems
G01S 13/937 - Radar or analogous systems, specially adapted for specific applications for anti-collision purposes of marine craft
09 - Scientific and electric apparatus and instruments
Goods & Services
Radar machines and apparatus, and sensors therefor; navigational apparatus and instruments for vessels; speed measuring apparatus for vessels; devices that display the speed and distance of surrounding vessels for cruising assistance; recorded computer software for processing digital images for vessels; recorded computer software for monitoring objects around vessels; recorded computer software for predicting vessel collision risk
72.
WEATHER OBSERVATION SYSTEM, WEATHER OBSERVATION METHOD, TRAINED MODEL GENERATION METHOD, AND PROGRAM
To provide a weather observation system, a weather observation method, a trained model generation method, and a program that can estimate solar radiation or power generation in real time. The weather observation system 1 has an image acquisition unit 11 that acquires an image G1 acquired by a camera 20 that contains at least a sky in an imaging area Ar1, a pixel value acquisition unit 12 that acquires a pixel value G2 of a specific area S6 in the imaging area Ar1, and an estimation unit 10 that generates an estimated value that is correlated with the pixel value G2 using correlation data that represents a relationship between a measured value and the pixel value G2.
G06F 18/213 - Feature extraction, e.g. by transforming the feature space; Summarisation; Mappings, e.g. subspace methods
G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
This positioning device comprises a delay correction amount setting unit and a pseudo-distance calculation unit. The delay correction amount setting unit sets a delay correction amount for an amount of delay from an antenna to a positioning device that occurs in a positioning signal being tracked. The pseudo-distance calculation unit calculates a pseudo-distance using a tracking result and the delay correction amount.
G01S 19/23 - Testing, monitoring, correcting or calibrating of a receiver element
G01S 19/07 - Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
74.
SIGNAL PROCESSING DEVICE, RADAR DEVICE, SIGNAL PROCESSING METHOD, AND RECORDING MEDIUM
According to the disclosure, an increase in costs is suppressed and the influence of main bang is reduced. A signal processing device includes a hardware processor programmed to at least: calculate a correction value of strength for each of distances from an antenna based on a received signal including a signal acquired by multiple transmissions and receptions via the antenna; and suppress a level indicated by received data generated based on the received signal for each of the distances by using the correction value for each of the distances.
An amplifier circuit to be used in a sonar is described. The amplifier circuit includes a transducer and a matching circuit. The transducer has an impedance characteristic having a resonance frequency and an anti-resonance frequency higher than the resonance frequency. The matching circuit is connected to the transducer. The impedance characteristic of the transducer connected to the matching circuit has a first resonance frequency and a second resonance frequency higher than the first resonance frequency.
H03F 1/56 - Modifications of input or output impedances, not otherwise provided for
G01S 7/52 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
76.
DRAFT INFORMATION GENERATION DEVICE AND DRAFT INFORMATION GENERATION METHOD
The purpose of this disclosure is to easily calculate draft information with a simple configuration. The draft information generation device (10) comprises multiple range-finding sensors (20) and an information processor module (30). The range-finding sensor (20) is mounted on the side of a vessel (80) and measures the distance to water surface (91) using a range-finding signal. The information processor module (30) calculates draft height Hdr using the distance to the water surface (91) and the mold depth Hmd of the vessel (80).
G01C 3/20 - Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument with adaptation to the measurement of the height of an object
B63B 39/12 - Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude for indicating draught or load
B63B 79/10 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
77.
SHIP NAVIGATION ASSISTANCE DEVICE, SHIP NAVIGATION ASSISTANCE METHOD, AND SHIP NAVIGATION ASSISTANCE PROGRAM
The purpose of the present disclosure is to set the initial information of the anchoring object (target) of a ship with high accuracy. A ship navigation assistance system according to the present disclosure includes a provisional initial information specifier, a measurement sensor and processing circuitry. The provisional initial information specifier may accept a specification of provisional initial information for characteristic information on an object to which a ship anchors or docks (docks to a pier). The measurement sensor may acquire measurement information on an object using a ranging result of an area including the object.
G01C 21/16 - Navigation; Navigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
G01C 21/20 - Instruments for performing navigational calculations
78.
SHIP NAVIGATION ASSISTANCE DEVICE, SHIP NAVIGATION ASSISTANCE METHOD, AND SHIP NAVIGATION ASSISTANCE PROGRAM
The purpose of the present disclosure is to suppress an error which occurs in movement, such as in anchoring a ship. A ship navigation assistance system includes a measurement sensor and a characteristic information updating module. The measurement sensor acquires measurement information on an object using a ranging result of an area including the object that is an anchorage target of a ship. The characteristic information updating module updates characteristic information on the object using initial characteristic information on the object or characteristic information before updating on the object, and the measurement information.
G01C 21/00 - Navigation; Navigational instruments not provided for in groups
G01C 21/16 - Navigation; Navigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
This high-frequency circuit is provided with a substrate, a first amplifier, a post wall waveguide, and a cover member. The first amplifier is mounted on the substrate and amplifies a high-frequency signal. The post wall waveguide is formed within the substrate and transmits a high-frequency signal that has been amplified or is to be amplified by the first amplifier. The cover member is conductive and covers an area which is a part of the substrate, and includes at least the first amplifier.
A high-frequency circuit (10) with multiple types of transmission lines is disclosed. A signal conductor (201) is formed in a first layer, extends into a first direction, and constitutes a microstripline (21) that transmits the high-frequency signal. A first flat film conductor (200) is formed in a second layer parallel to the first layer and extends from the position corresponding to one end of the first direction of the signal conductor (201) to the first direction. A first flat film conductor (200) is formed in a third layer running parallel to the second layer. A post-wall waveguide is formed between the first and second flat film conductor (200, 202) to transmit a high-frequency signal. The first matching conductor (301) is formed in the first layer, consists of the length of (1+2N)/4 (N is an integer) wavelengths of the high-frequency signal.
The bandpass filter (10, 10A or 10B) has a first post-wall waveguide, a second post-wall waveguide, a connected waveguide, and a first, second and third via conductor (51, 52 and 50). The first and the second post-wall waveguide are arranged in order in the first direction and transmit high frequency signals in opposite directions to each other. The connected waveguide is placed on the second direction side, which is the transmission direction of the first post-wall waveguide, and connects to the one end of the first and the second post-wall waveguide. The first and second via conductor (51, 52) are located within the respective post-wall waveguide at a distance (L1) from the one end of the respective post-wall waveguide. The third via conductor (50) is located within the connected waveguide at a distance (L2) from the one end of the first and the second post-wall waveguide.
A Doppler device including a transducer and processing circuitry is provided. The transducer transmits underwater ultrasonic wave and receives a reflected wave of the ultrasonic wave. The Doppler device generates a first echo signal from the reflected wave in a first direction making a depression angle θ with a receiving surface of the transducer, generates a second echo signal from the reflected wave in a second direction making the depression angle θ with the receiving surface, the second direction being different from the first direction, and generates a third echo signal in a third direction perpendicular to the receiving surface. The processing circuitry further calculates a first Doppler frequency of the first echo signal, a second Doppler frequency of the second echo signal, and a third Doppler frequency of the third echo signal. The processing circuitry further calculates the depression angle θ from the first, second and third Doppler frequencies.
G01S 15/58 - Velocity or trajectory determination systems; Sense-of-movement determination systems
G01K 11/24 - Measuring temperature based on physical or chemical changes not covered by group , , , or using measurement of acoustic effects of the velocity of propagation of sound
A stub tuner includes a first conductor, and a rod-shaped conductor shaft. The first conductor is inserted into a tube axial direction inner side from an opening in a waveguide tube transmitting high frequency waves. The first conductor includes a plate-shaped first shape extending in a direction intersecting a tube axial direction, inside the waveguide tube, and a plate-shaped second shape extending from the outer end in the tube radial direction of the first shape toward the tube axial direction outer side in the tube axial direction. An outer circumferential surface of the second shape is separated from an inner surface of the waveguide tube. An electrical length of the outer circumferential surface in the tube axial direction is ¼ of a wavelength of the high-frequency waves. The conductor shaft is electrically connected to the waveguide tube, supports the first conductor, and extends in the tube axial direction.
[Problem] To provide a target monitoring device with which it is possible to improve the accuracy of estimating a hull length. [Solution] This target monitoring device comprises: a data acquiring unit for acquiring image data including a ship observed by means of an imaging sensor; an image recognition unit for detecting an area of the ship included in the image data; a distance acquiring unit for acquiring a distance to the ship from an observation position, detected by a sensor different from the imaging sensor; a course acquiring unit for acquiring a course of the ship detected by a sensor different from the imaging sensor; and a hull length estimating unit for estimating a hull length of the ship on the basis of a horizontal-direction dimension of the region of the ship, the distance to the ship, and the course of the ship.
[Problem] To provide a target monitoring device with which it is possible to improve the accuracy of estimating a distance from an imaging position of a camera to a ship. [Solution] This target monitoring device comprises: an image acquiring unit for acquiring an image including a target on the sea, imaged by a camera; an image recognition unit for detecting an area of the target included in the image; a type acquiring unit for acquiring a type of the target; a height acquiring unit for acquiring a representative height associated in advance with the type; and a distance estimating unit for estimating a distance from the imaging position to the target on the basis of a height-direction dimension of the image, a height-direction dimension of the region of the target, and the representative height.
[Problem] To provide a target monitoring device which facilitates identification of unknown targets. [Solution] A target monitoring device comprises: an image acquisition unit which sequentially acquires images including marine views captured by a camera performing a panning operation; an image recognition unit which detects targets included in the images; a target identification unit which determines whether a detected target is the same as a target registered in a database in which target data of targets detected by a target detection unit which is different from the camera is registered; and a camera control unit which stops the panning operation of the camera in a state in which the detected target is included in the angle of view if the detected target is not a target registered in the database.
[Problem] To provide an information processing method, an information processing device, and a computer program that enable effective identification of objects on water. [Solution] The information processing method for identifying an object-on-water around a ship comprises: acquiring photographed images obtained by photographing the surroundings of the ship via a plurality of photographing devices of different types installed on the ship; inputting the photographed images acquired from each of the plurality of photographing devices to a trained model that outputs results of identifying the objects on water included in the photographed image when the photographed images are input; acquiring the results of identifying the objects on water output from the trained model; and outputting the results of identifying the objects on water included in each of the plurality of photographing devices.
To provide a cloud observation system, a method, and a computer-readable recording medium capable of observing clouds at night by a camera. Cloud observation system provides an acquisition unit that acquires a sky image taken by a camera that contain the sky, a threshold determination unit that determines a threshold value based on a plurality of pixel values of a plurality of edges in the sky image and a cloud determination unit that determines a pixel indicating a cloud from a plurality of pixels constituting the sky image based on the threshold value and the plurality of pixel values in the sky image.
G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
89.
INFORMATION PROCESSING METHOD, RADAR APPARATUS, AND COMPUTER PROGRAM
[Problem] To provide an information processing method, radar apparatus, and computer program which make it possible to recognize a false image on a radar echo. [Solution] Provided is an information processing method in which: image data that includes time-series radar images is acquired; position data of a first false image candidate is acquired by inputting one acquired radar image into a first training model that outputs the position data of the first false image candidate when one radar image has been inputted; position data of a second false image candidate is acquired by inputting the acquired time-series radar images into a second training model that outputs the position data of the second false image candidate when the time-series radar images have been inputted; and a false image on a radar echo is detected on the basis of the position data of the acquired first false image candidate and second false image candidate.
G01S 7/03 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
G01S 7/10 - Providing two-dimensional co-ordinated display of distance and direction
The present disclosure provides a learning data collecting system which is easy to collect learning data. The learning data collecting system includes a radar, a communication device, and processing circuitry. The radar receives a reflection wave of a radio wave transmitted around a ship and generates echo data associated with a direction. The communication device receives travel data of an other ship containing position data of the other ship. The processing circuitry extracts, from the echo data, partial echo data of an area corresponding to the position data.
[Problem] To provide an ultrasonic imaging device that quantifies manipulation of a probe by an operator when the probe is moved over the surface of a subject. [Solution] This ultrasonic imaging device 3 comprises: an ultrasonic receiving unit 351 that receives, via a probe disposed on a surface of the subject, signals pertaining to ultrasonic waves transmitted by the probe into the subject and reflected inside the subject; image generating units 352 and 353 that generate ultrasonic images on the basis of the signals of the received ultrasonic waves; and a pressing force estimating unit 354 that estimates, on the basis of the displacements of positions of corresponding feature points, a pressing force indicator that is an indicator representing the magnitude of a contact force on the subject due to the probe, in two or more ultrasonic images which are acquired at a plurality of probe positions on the surface of the subject and partially overlap each other.
[Problem] To prevent the occurrence of interference in voice radio communication between multiple vessels or between a vessel and a land station and thereby smoothly start normal voice radio communication. [Solution] A display processing device including: a reception unit that receives a voice radio wave; an analysis processing unit that performs determination of a channel used to propagate the voice radio wave and vessel-land determination for determining whether the output source of the voice radio wave is a vessel or a land station; and a display processing unit that displays the result of the vessel-land determination for the used channel on a screen that displays the time-series variation of the usage of each of available channels.
A visibility determination system determines a visibility condition based on an image taken by a camera. The visibility determination system includes: an acquisition part, configured to acquire a first extracted image obtained by extracting an edge of an imaging target in a first image taken by the camera; and a determination part, configured to determine visibility based on the first extracted image and a second extracted image that is obtained by extracting the edge of the imaging target in a second image taken by the camera at a different time from the first image.
[Problem] To provide a vessel monitoring device with which it is possible to clarify stand-on/give-way determinations. [Solution] A vessel monitoring device comprises: a first data acquisition unit that acquires first vessel data indicating the position and speed of a first vessel; a second data acquisition unit that acquires second vessel data indicating the position and speed of a second vessel; a sight relationship determination unit that determines, on the basis of the first vessel data and the second vessel data, whether the sight relationship between the first vessel and the second vessel is a head-on relationship, a crossing relationship, or an overtaking relationship; and a stand-on/give-way determination unit that determines, on the basis of the first vessel data, the second vessel data, and the sight relationship, whether at least one of the first vessel and the second vessel corresponds to a stand-on vessel, a give-way vessel, or neither.
B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
95.
RADAR IMAGE SYNTHESIS DEVICE, RADAR IMAGE SYNTHESIS METHOD AND RADAR IMAGE SYNTHESIS PROGRAM
[Problem] To display a more highly visible synthesized image based on a plurality of radar images. [Solution] A radar image synthesis device equipped with: an acquisition unit for acquiring a plurality of radar images based on the measurement results from each of a plurality of radars which are positioned in different locations from one another; a generation unit for generating a synthesized image by synthesizing the plurality of radar images by setting, as the boundary between said radar images, the position at which a set of two or more radars yields the same product of radar beam width and distance from the radar; and a display processing unit for performing processing for displaying the synthesized image.
LEARNING SYSTEM OF PRECIPITABLE WATER VAPOR ESTIMATION MODEL, PRECIPITABLE WATER VAPOR ESTIMATION SYSTEM, METHOD, AND COMPUTER-READABLE RECORDING MEDIUM
A learning system of a precipitable water vapor estimation model includes a radio wave intensity acquisition part, a precipitable water vapor acquisition part, and a learning part. The radio wave intensity acquisition part acquires radio wave intensities of a plurality of frequencies among radio waves received by a microwave radiometer. The precipitable water vapor acquisition part acquires a precipitable water vapor calculated based on an atmospheric delay of a GNSS signal received by a GNSS receiver. Based on the radio wave intensities of the plurality of frequencies and the precipitable water vapor at a plurality of time points in a particular period, the learning part subjects an estimation model to machine learning such that an input data based on the radio wave intensities of the plurality of frequencies is taken as an input to output the precipitable water vapor.
