A bracket for holding a sensor at a location on a circuit board. The bracket comprises a main body and at least two leg members. Each leg member further includes a first end connected to the main body and a second end extending away from the main body at a predetermined angle. In an engaged position of the bracket, the second end of each leg member is configured to extend through a corresponding opening in the circuit board and wherein each second end further comprises a hook member configured to engage a bottom portion of the circuit board in the engaged of the bracket. The bracket further includes at least one spring member having a first surface configured to contact a top portion of the sensor and exert a force substantially normal to the circuit board in the engaged position of the bracket.
An aspect of the present disclosure includes a notification device configured for mounting on a surface including a projector configured to display light patterns on the surface; a projection control module (PCM) communicatively coupled with the projector, wherein the PCM is configured to receive, from a control panel, a message in response to a number of occupants exceeding an occupant threshold in a zone of an infrastructure; and cause the projector to display at least a portion of the message on the surface using the light patterns.
G08B 21/02 - Alarms for ensuring the safety of persons
G08B 7/06 - Signalling systems according to more than one of groups ; Personal calling systems according to more than one of groups using electric transmission
Example implementations include a method, apparatus and computer-readable medium for event monitoring at a cloud service, comprising receiving, from a control panel coupled with a plurality of control sensors within a supervised premises, a plurality of event messages corresponding to events detected by the plurality of control sensors within the supervised premises. The implementations further include generating a status simulation for the control panel based on the plurality of event messages, the status simulation representing a current status of the control panel. Additionally, the implementations further include creating a subscription of a client service to the control panel based on a request from the client service. Additionally, the implementations further include transmitting, to the client service based on the subscription, status information for the control panel derived from the status simulation.
H04L 67/025 - Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
H04L 67/04 - Protocols specially adapted for terminal portability
H04L 67/125 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
Example implementations include an addressable device having a base unit mountable on a structure and a device head removably mountable onto the base unit. A removable addressing mechanism is removably mountable onto the base unit and is configured for setting an address for the addressable device. The device head includes an optical address detection mechanism that, when the device head and the removable addressing mechanism are mounted onto the base unit, is configured to align with the removable addressing mechanism to optically read the address configured in the removable addressing mechanism, The removable addressing mechanism is electrically isolated from the base unit, the device head, and the optical address detection mechanism.
An emergency alarm system peripheral, such as a hazard detector, intrusion detector, or a notification appliance, includes a base that is permanently installed on a wall or ceiling, and a head which mounts to the base. Various embodiments and methods are provided to easily and efficiently assign addresses to the peripherals in the system.
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
G06K 7/10 - Methods or arrangements for sensing record carriers by corpuscular radiation
G06K 7/14 - Methods or arrangements for sensing record carriers by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
G08B 17/06 - Electric actuation of the alarm, e.g. using a thermally-operated switch
G08B 17/10 - Actuation by presence of smoke or gases
G08B 21/02 - Alarms for ensuring the safety of persons
H04B 5/00 - Near-field transmission systems, e.g. inductive loop type
G08B 29/18 - Prevention or correction of operating errors
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
The present disclosure concerns a bracket for holding a sensor at a location on a circuit board. The bracket comprises a main body and at least two leg members. Each leg member further includes a first end connected to the main body and a second end extending away from the main body at a predetermined angle. In an engaged position of the bracket, the second end of each leg member is configured to extend through a corresponding opening in the circuit board and wherein each second end further comprises a hook member configured to engage a bottom portion of the circuit board in the engaged position of the bracket. The bracket further includes at least one spring member having a first surface configured to contact a top portion of the sensor and exert a force substantially normal to the circuit board in the engaged position of the bracket.
An emergency alarm system peripheral, such as a hazard detector, intrusion detector, or a notification appliance, includes a base that is permanently installed on a wall or ceiling, and a head which mounts to the base. Various embodiments and methods are provided to easily and efficiently assign addresses to the peripherals in the system.
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
G08B 17/10 - Actuation by presence of smoke or gases
H04B 5/00 - Near-field transmission systems, e.g. inductive loop type
G08B 17/06 - Electric actuation of the alarm, e.g. using a thermally-operated switch
G08B 21/02 - Alarms for ensuring the safety of persons
G08B 29/18 - Prevention or correction of operating errors
G06K 7/10 - Methods or arrangements for sensing record carriers by corpuscular radiation
G06K 7/14 - Methods or arrangements for sensing record carriers by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
Aspects of the present disclosure include methods, apparatus, and systems for mass notification including receiving the message from a server via a link and causing the projector to project the message on a surface using the light patterns.
G08B 5/36 - Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electromagnetic transmission using visible light sources
G08B 7/06 - Signalling systems according to more than one of groups ; Personal calling systems according to more than one of groups using electric transmission
G08B 27/00 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
11.
UNSUPERVISED ENROLLMENT FOR ANTI-THEFT FACIAL RECOGNITION SYSTEM
The present disclosure relates to unsupervised enrollment for an anti-theft facial recognition system. Specifically, a security system may generate a unique set of facial recognition biometric features for a human face of a person of interest based on analyzing one or more face images in a track, extracting one or more potential facial recognition biometric features, and removing outlier ones of the one or more potential facial recognition biometric features to define the unique set of facial recognition biometric features. The security system may further determine whether a new face detected in a new video includes a new set of facial recognition biometric features that is a match with one of the plurality of unique sets of facial recognition biometric features corresponding to the plurality of known human faces of a plurality of persons of interest, and generate an alert in response to determining the match.
A system includes participant nodes that unicast a voice stream to a master node and receive a multicast voice stream from the master node. The multicast voice stream may be a mixed voice stream mixing the voice streams of the participants. In this case, each participant performs echo cancellation on the multicast voice stream. Alternatively, the multicast voice stream may be a multiplexed voice stream multiplexing the voice streams of all participants. In this case, each participant de-multiplexes the multicast voice stream and generates a mixed voice stream that does not include that participant. Alternatively, the multicast voice stream received by each participant may be a multiplexed digital voice stream multiplexing multiple mixed streams including one mixed stream that does not include the voice stream of that participant. In this case, each participant de-multiplexes the multicast voice stream to obtain the mixed stream that does not include that participant.
H04L 29/06 - Communication control; Communication processing characterised by a protocol
H04M 9/08 - Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
A system performs cloud-based fire protection. The system receives, by a cloud platform, data from one or more initiating devices. The system stores the data in a persistent data storage of the cloud platform over a period of time. The system applies machine learning to the data to build or adjust a predictive detection model. The system processes, by computing resources of the cloud platform, the data using the predictive detection model to determine an existence of a safety event. The system then transmits, to at least one notification device, an event notification in response to the existence of the safety event.
A system includes a wireless communication device that joins a wireless communication network. Specifically, the wireless communication device measures a quality metric of the wireless communication network in response to a trigger to join the wireless communication network. The wireless communication device determines whether the quality metric indicates a high quality environment or a low quality environment for communicating signals. In response to the quality metric indicating the high quality environment, the wireless communication device selects a first pathway with an optimum transmission time between the wireless communication device and a central controller of the wireless communication network. In response to the quality metric indicating a low quality environment, the wireless communication device selects a second pathway comprising an optimum quality link between the wireless communication device and another wireless communication device in the wireless communication network.
A method for determining lithium battery passivation starts by applying a load across a lithium battery at the start of a test interval. Measurements of the battery's voltage are taken after applying the load, and then again periodically during the test interval. A final measurement of the battery's voltage at the end of the test interval. The state of the battery is then determined based on the first and final measurements, and at least one of the periodic measurements.
A method of depassivating a battery may include receiving a determined state of the battery and applying, depending on the determined state, a depassivation algorithm to the battery. The algorithm may include applying a load across the battery for a predetermined amount of time that is dependent on the degree of battery passivation.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
17.
LITHIUM BATTERY PASSIVATION DETECTION, ACTIVATION AND MAINTENANCE MODULE
A retrofit module (1150) for lithium battery passivation, detection, activation and maintenance (PDAM) includes a test circuit (1153), a load circuit (1155), a microcontroller (1151) and means for electrically connecting the PDAM module to a target battery (1105) in a device. Upon power-up and / or joining or rejoining a network, and additionally at periodic intervals thereafter, the state of the target battery is determined and an activation algorithm is executed, the parameters of which are dependent upon the determined target battery state.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
G08B 29/14 - Checking intermittently signalling or alarm systems checking the detection circuits
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
G01R 31/385 - Arrangements for measuring battery or accumulator variables
H01M 6/50 - Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
A system includes a wireless communication device that joins a wireless communication network. Specifically, the wireless communication device measures a quality metric of the wireless communication network in response to a trigger to join the wireless communication network. The wireless communication device determines whether the quality metric indicates a high quality environment or a low quality environment for communicating signals. In response to the quality metric indicating the high quality environment, the wireless communication device selects a first pathway with an optimum transmission time between the wireless communication device and a central controller of the wireless communication network. In response to the quality metric indicating a low quality environment, the wireless communication device selects a second pathway comprising an optimum quality link between the wireless communication device and another wireless communication device in the wireless communication network.
H04W 4/00 - Services specially adapted for wireless communication networks; Facilities therefor
H04W 40/16 - Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality based on interference
A voice alarm notification device of a fire alarm system, comprising: a network port for receiving an alarm notification signal; an audio file library in which the audio files include audio voice message files; a speaker; a processor unit connected to the network port for processing an alarm notification signal and for selecting one of the audio files from the library to be played through the speaker; and a Bluetooth module for establishing a Bluetooth communication link to the voice alarm notification device, via which link an audio voice file can be received. The device is arranged to add the audio voice file received via the Bluetooth communication link to the library so as to be available for selection by the processor unit when it receives an alarm notification signal.
G08B 3/10 - Audible signalling systems; Audible personal calling systems using electromagnetic transmission
G08B 7/06 - Signalling systems according to more than one of groups ; Personal calling systems according to more than one of groups using electric transmission
G08B 17/00 - Fire alarms; Alarms responsive to explosion
G08B 25/04 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
The present invention relates to a voice alarm device which forms part of a fire alarm system loop. Upon detection of a fire, a control panel instructs appropriate voice alarm devices to retrieve relevant audio from local storage and output the audio via a local speaker.
G08B 3/10 - Audible signalling systems; Audible personal calling systems using electromagnetic transmission
G08B 17/00 - Fire alarms; Alarms responsive to explosion
G08B 25/04 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
G08B 7/06 - Signalling systems according to more than one of groups ; Personal calling systems according to more than one of groups using electric transmission
21.
Systems and methods for adaptively joining a wireless communication network
A system includes a wireless communication device that joins a wireless communication network. Specifically, the wireless communication device measures a quality metric of the wireless communication network in response to a trigger to join the wireless communication network. The wireless communication device determines whether the quality metric indicates a high quality environment or a low quality environment for communicating signals. In response to the quality metric indicating the high quality environment, the wireless communication device selects a first pathway with an optimum transmission time between the wireless communication device and a central controller of the wireless communication network. In response to the quality metric indicating a low quality environment, the wireless communication device selects a second pathway comprising an optimum quality link between the wireless communication device and another wireless communication device in the wireless communication network.
H04W 40/16 - Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality based on interference
An emergency alarm system peripheral, such as a hazard detector, intrusion detector, or a notification appliance, includes a base that is permanently installed on a wall or ceiling, and a head which mounts to the base. Various embodiments and methods are provided to easily and efficiently assign addresses to the peripherals in the system.
An emergency alarm system peripheral, such as a hazard detector, intrusion detector, or a notification appliance, includes a base that is permanently installed on a wall or ceiling, and a head which mounts to the base. Various embodiments and methods are provided to easily and efficiently assign addresses to the peripherals in the system.
An emergency alarm system peripheral, such as a hazard detector, intrusion detector, or a notification appliance, includes a base that is permanently installed on a wall or ceiling, and a head which mounts to the base. Various embodiments and methods are provided to easily and efficiently assign addresses to the peripherals in the system.
An emergency alarm system peripheral, such as a hazard detector, intrusion detector, or a notification appliance, includes a base that is permanently installed on a wall or ceiling, and a head which mounts to the base. Various embodiments and methods are provided to easily and efficiently assign addresses to the peripherals in the system.
A wireless fire alarm notification system uses wireless repeater devices to annunciate an alarm to slave devices from the control panel. A notification device provides a local synchronization signal via wire to a secondary notification device. A method enables the activation or deactivation of child device without the child device having to query their parent repeater. A circuit to test the integrity of an active battery charger, a battery, and an isolation circuit is also shown. A method for qualifying that an RF signal meets a specified minimum acceptable level is described. A method for wirelessly sending events to avoid RF link overload is provided. A programming checksum method confirms that an annunciator has latest programming information. A method to automatically process messages from new devices without having to hardcode repeaters to support these new devices is also described.
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
G08B 17/00 - Fire alarms; Alarms responsive to explosion
H04B 1/713 - Spread spectrum techniques using frequency hopping
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
G08B 27/00 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
H04W 4/90 - Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
G08B 17/10 - Actuation by presence of smoke or gases
Monitoring and mass notification systems, such as fire alarm systems, for use in occupied structures, and more particularly to wireless monitoring and mass notification systems include wireless base units that can be modular in design. This allows horns, mini horns, strobes, and audio messaging modules (e.g., speakers) to be physically plugged into the wireless base unit creating a unit with the appearance of a single physical unit. Preferably standardized plugs are used. In some cases, visual and audio modules (i.e., notification devices) have their own battery pack or external power interface. Each wireless base unit can optionally function as a repeater if it has dual transceivers (master transceiver and slave transceiver).
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
G08B 17/00 - Fire alarms; Alarms responsive to explosion
H04B 1/713 - Spread spectrum techniques using frequency hopping
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
G08B 27/00 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
H04W 4/90 - Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
G08B 17/10 - Actuation by presence of smoke or gases
A gateway system is used to establish secure connections between building management system control panels and connected services system servers. This enables status monitoring of the panels and maintenance of the panels and the building management systems.
G08B 25/08 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
G08B 25/14 - Central alarm receiver or annunciator arrangements
A fire detector system comprises a fire detector unit; a sensor disposed in the fire detector unit and arranged to detect the characteristics of a fire and to generate an output signal indicative of the characteristics detected by the sensor; and a processor arranged to receive the output signal from the sensor and to generate afire alarm signal when the output signal exceeds an alarm point threshold; wherein the system is arranged to change the alarm point threshold over time to compensate for drift in the response of the detector unit; wherein the fire detector unit includes a first sensitivity mode with a first drift compensation limit and a second sensitivity mode with a second drift compensation limit, the second sensitivity mode being more sensitive than the first; and wherein, as the first alarm point threshold in the first sensitivity mode is approached or reached, the mode of the system is changed to the second sensitivity mode.
Method for synchronizing a non-symmetrical tonal pattern in a wireless alerting system involves receiving at a plurality of alerting devices a beacon message. The beacon message is used at the alerting devices to synchronously generate a synchronization pulse signal comprised of a plurality of synchronization pulses which are periodic in accordance with a predetermined synchronization pulse interval. A cadence section indicator (CSI) in the beacon message is used in combination with the synchronization pulse signal to determine a portion of an alarm cadence to sound at each of the alerting device so that the alarm cadence is synchronized among the plurality of the alerting devices.
A system and method for providing temporary power to an intermittent unit of a fire alarm system device. The intermittent unit is intermittently activated. The fire alarm system device includes a power storage unit for providing temporary power to the intermittent unit and a voltage converter for providing power at a voltage required by the intermittent unit. The fire alarm system device also includes a power control circuit for discharging the power storage unit through the intermittent unit when the intermittent unit first is activated and then switching to enable the voltage converter to power the intermittent unit.
G08B 29/00 - Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
G08B 29/18 - Prevention or correction of operating errors
G08B 17/10 - Actuation by presence of smoke or gases
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
A wireless fire alarm notification system uses wireless repeater devices to annunciate an alarm to slave devices from the control panel. A notification device provides a local synchronization signal via wire to a secondary notification device. A method enables the activation or deactivation of child device without the child device having to query their parent repeater. A circuit to test the integrity of an active battery charger, a battery, and an isolation circuit is also shown. A method for qualifying that an RF signal meets a specified minimum acceptable level is described. A method for wirelessly sending events to avoid RF link overload is provided. A programming checksum method confirms that an annunciator has latest programming information. A method to automatically process messages from new devices without having to hardcode repeaters to support these new devices is also described.
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
G08B 17/00 - Fire alarms; Alarms responsive to explosion
H04B 1/713 - Spread spectrum techniques using frequency hopping
G08B 27/00 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
H04W 4/90 - Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
G08B 17/10 - Actuation by presence of smoke or gases
In a fire alert system energy is harvested from a wire line pair (408) used to provide primary electrical power from a fire panel central monitoring station to a plurality of remote devices (406). The fire panel central monitoring station begins communications with a remote device by modulating the voltage on the wire line pair so as to communicate a first message (502) to one of the plurality of remote devices. Thereafter, one of the remote devices will respond to the first message with a second message (504) by modulating the voltage on the line pair. Energy is selectively harvested from the wire line pair at one or more of the remote devices in accordance with the remote device address specified in the first message.
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
G08B 25/04 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
G08B 26/00 - Alarm systems in which substations are interrogated in succession by a central station
H04L 12/437 - Ring fault isolation or reconfiguration
34.
System and method for providing temporary power to intermittent units
A system and method for providing temporary power to an intermittent unit of a fire alarm system device. The intermittent unit is intermittently activated. The fire alarm system device includes a power storage unit for providing temporary power to the intermittent unit and a voltage converter for providing power at a voltage required by the intermittent unit. The fire alarm system device also includes a power control circuit for discharging the power storage unit through the intermittent unit when the intermittent unit first is activated and then switching to enable the voltage converter to power the intermittent unit.
G08B 29/00 - Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
G08B 29/18 - Prevention or correction of operating errors
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
G08B 17/10 - Actuation by presence of smoke or gases
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
Monitoring and mass notification systems, such as fire alarm systems, for use in occupied structures, and more particularly to wireless monitoring and mass notification systems include wireless base units that can be modular in design. This allows horns, mini horns, strobes, and audio messaging modules (e.g., speakers) to be physically plugged into the wireless base unit creating a unit with the appearance of a single physical unit. Preferably standardized plugs are used. In some cases, visual and audio modules (i.e., notification devices) have their own battery pack or external power interface. Each wireless base unit can optionally function as a repeater if it has dual transceivers (master transceiver and slave transceiver).
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
G08B 17/00 - Fire alarms; Alarms responsive to explosion
H04B 1/713 - Spread spectrum techniques using frequency hopping
G08B 27/00 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
G08B 17/10 - Actuation by presence of smoke or gases
A distributed file system for a vehicle fire system leverages unused memory in slave modules. Such a system comprises file metadata stored on the master module, which includes information about specific files and the location of used and unused memory throughout the system, including memory on the master module and installed slave units. By maintaining the file metadata and sending instructions to slave units to save or read files at certain addresses, the master module can avail itself of unused memory throughout the entire system. This allows the master module to store more information on the system than there is available memory on the master itself.
Monitoring and mass notification systems, such as fire alarm systems, for use in occupied structures, and more particularly to wireless monitoring and mass notification systems include wireless base units that can be modular in design. This allows horns, mini horns, strobes, and audio messaging modules (e.g., speakers) to be physically plugged into the wireless base unit creating a unit with the appearance of a single physical unit. Preferably standardized plugs are used. In some cases, visual and audio modules (i.e., notification devices) have their own battery pack or external power interface. Each wireless base unit can optionally function as a repeater if it has dual transceivers (master transceiver and slave transceiver).
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
G08B 17/00 - Fire alarms; Alarms responsive to explosion
H04B 1/713 - Spread spectrum techniques using frequency hopping
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
G08B 27/00 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
H04W 4/90 - Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
G08B 17/10 - Actuation by presence of smoke or gases
A system and method for updating the firmware of slave units in a fire system detects whether a new slave unit has been installed and compares the version of the firmware in the newly-installed slave unit with that of previously-installed slave units of the same type (including any backup copies of firmware stored by the master module in a file system). If the newly-installed slave unit's firmware is more recent, any backup copies of the firmware stored by the master module are replaced with an image of the new version of the firmware. Additionally, slave units with older versions of the firmware are updated to the newest version.
A method and system for assigning working addresses to slave units in a vehicle fire system. Slave units responding to a default address are identified along with available working addresses. Individual slave units are isolated at the default address by instructing the slaves to compare their serial numbers to a broadcast serial number until only a single slave responds, wherein bits in the serial numbers are reversed to create a more sparse distribution of the serial numbers of the slave units, and assigning the slave units, which responded to the default address, to the available working addresses.
Monitoring and mass notification systems, such as fire alarm systems, for use in occupied structures, and more particularly to wireless monitoring and mass notification systems include wireless base units that can be modular in design. This allows horns, mini horns, strobes, and audio messaging modules (e.g., speakers) to be physically plugged into the wireless base unit creating a unit with the appearance of a single physical unit. Preferably standardized plugs are used. In some cases, visual and audio modules (i.e., notification devices) have their own battery pack or external power interface. Each wireless base unit can optionally function as a repeater if it has dual transceivers (master transceiver and slave transceiver).
G08B 17/12 - Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
G08B 17/00 - Fire alarms; Alarms responsive to explosion
H04B 1/713 - Spread spectrum techniques using frequency hopping
G08B 27/00 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
41.
Master slave wireless fire alarm and mass notification system
A wireless fire alarm notification system uses wireless repeater devices to annunciate an alarm to slave devices from the control panel. A notification device provides a local synchronization signal via wire to a secondary notification device. A method enables the activation or deactivation of child device without the child device having to query their parent repeater. A circuit to test the integrity of an active battery charger, a battery, and an isolation circuit is also shown. A method for qualifying that an RF signal meets a specified minimum acceptable level is described. A method for wirelessly sending events to avoid RF link overload is provided. A programming checksum method confirms that an annunciator has latest programming information. A method to automatically process messages from new devices without having to hardcode repeaters to support these new devices is also described.
G08B 17/12 - Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
G08B 17/00 - Fire alarms; Alarms responsive to explosion
H04B 1/713 - Spread spectrum techniques using frequency hopping
G08B 27/00 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
42.
Interface circuit for distributed fire alarm in loop configuration
An interface circuit of a sub-system of a distributed fire detection system having a plurality of sub-systems, wherein the plurality of sub-systems are in communication with each other in a loop configuration to allow data signals to be routed between said sub-systems. The interface circuit connects the internal components of a sub-system to the external bus line connecting all components via at least three input/output ports. It comprises hardware logic components, namely switches and switch controllers listening for incoming data and opening or closing said switches to cause disconnection and connection between said input/output ports accordingly, thereby allowing the routing of data signals to one or more of the other input/output ports. The simpler configurations replaces a routing processor.
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
G08B 29/18 - Prevention or correction of operating errors
G08B 25/04 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
A strobe device that includes multiple strobe elements is disclosed. The strobe device may include a first strobe element and a second strobe element, where at least one aspect of the first strobe element differs from the second strobe element. For example, the first strobe element may be a Xenon flash tube strobe element and the second strobe element may be an LED-based strobe element. In response to receiving a command to generate an output, the controller determines which of the first strobe element and/or the second strobe element to activate, and sends one or more signals to the first strobe element and/or the second strobe element based on the determination. The controller may activate both of the first strobe element and the second strobe element (such as alternating activation of the first strobe element and the second strobe element). Or, the controller may select one of the first strobe element and the second strobe element. For example, depending on the ambient light at or near the strobe device, the controller may activate either the first strobe element or the second strobe element.
G08B 3/00 - Audible signalling systems; Audible personal calling systems
G08B 5/38 - Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electromagnetic transmission using visible light sources using flashing light
A strobe device that includes multiple strobe elements is disclosed. The strobe device may include a first strobe element and a second strobe element, where at least one aspect of the first strobe element differs from the second strobe element. For example, the first strobe element may be a Xenon flash tube strobe element and the second strobe element may be an LED-based strobe element. In response to receiving a command to generate an output, the controller determines which of the first strobe element and/or the second strobe element to activate, and sends one or more signals to the first strobe element and/or the second strobe element based on the determination. The controller may activate both of the first strobe element and the second strobe element (such as alternating activation of the first strobe element and the second strobe element). Or, the controller may select one of the first strobe element and the second strobe element. For example, depending on the ambient light at or near the strobe device, the controller may activate either the first strobe element or the second strobe element.
G08B 3/00 - Audible signalling systems; Audible personal calling systems
G08B 5/38 - Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electromagnetic transmission using visible light sources using flashing light
A pull station for an alarm includes a housing having an actuator mounted for movement with respect thereto. The actuator has a standby (i.e., normal) position and an alarm position. The actuator has a contoured actuation surface configured such that downward pressure on the actuation surface moves the actuator from the standby position to the alarm position. The actuator may be rotatably or slidably coupled to the housing. The actuation surface may extend beyond the front face of the housing when in the standby position. In some embodiments, the actuation surface is cup-shaped. In other embodiments, the actuation surface is v-shaped, with first and second angled portions forming oblique angles with respect to a lateral axis of the housing. Thus arranged, the actuator can be operated by a disabled who may not have complete hand or finger dexterity. Other embodiments are described and claimed.
A system and method for providing backup communications using Power over Ethernet (PoE) are disclosed. A backup communication system (BCS) is provided as part of a networked (TCP/IP) hospital communication system. The BCS is coupled to a power line used to provide power to a PoE switch. When TCP/IP communications are interrupted, the BCS receives patient call signals from patient room terminals over a secondary communication mode of the power line, and transmits those call signals to a nurses' station. The call signals can be generated by coupling a pulse-coded AC signal onto the PoE wires, or by sending voltage coded data in one direction and current-coded data in the other direction. Different signals or signal levels can be used to distinguish normal patient calls, patient emergency calls, and code calls. Thus, basic communications can be achieved when TCP/IP are unavailable. Other embodiments are disclosed and claimed.
A system and method for providing backup communications over an Ethernet cable are disclosed. A backup communication system (BCS) is provided as part of a networked (TCP/IP) hospital communication system. The BCS is coupled to an Ethernet cable used for normal TCP/IP communications. When TCP/IP communications are interrupted, the BCS receives patient call signals from patient room terminals over a secondary communication mode of the Ethernet cable, and transmits those call signals to a nurses' station. The call signals are transmitted as voltage coded data such as voltage pulses or static levels. The voltage can include call information. 10V can represent a normal patient call, 15V can represent a patient emergency call, and 24V can represent a code call. Information can be relayed back to the room terminals using the same signaling technique. Thus, basic communications can be achieved when TCP/IP communications are unavailable. Other embodiments are disclosed and claimed.
A strobe device that includes multiple strobe elements is disclosed. The strobe device may include a first strobe element and a second strobe element, where at least one aspect of the first strobe element differs from the second strobe element. For example, the first strobe element may be a Xenon flash tube strobe element and the second strobe element may be an LED-based strobe element. In response to receiving a command to generate an output, the controller determines which of the first strobe element and/or the second strobe element to activate, and sends one or more signals to the first strobe element and/or the second strobe element based on the determination. The controller may activate both of the first strobe element and the second strobe element (such as alternating activation of the first strobe element and the second strobe element). Or, the controller may select one of the first strobe element and the second strobe element. For example, depending on the ambient light at or near the strobe device, the controller may activate either the first strobe element or the second strobe element.
A pull station for an alarm includes a housing having an actuator mounted for movement with respect thereto. The actuator has a standby (i.e., normal) position and an alarm position. The actuator has a contoured actuation surface configured such that downward pressure on the actuation surface moves the actuator from the standby position to the alarm position. The actuator may be rotatably or slidably coupled to the housing. The actuation surface may extend beyond the front face of the housing when in the standby position. In some embodiments, the actuation surface is cup-shaped. In other embodiments, the actuation surface is v-shaped, with first and second angled portions forming oblique angles with respect to a lateral axis of the housing. Thus arranged, the actuator can be operated by a disabled who may not have complete hand or finger dexterity. Other embodiments are described and claimed.
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