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
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
6.
Fire alarm peripheral addressing using a unique identifier
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
7.
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 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 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
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
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
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
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
20.
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
21.
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.
patents
