Abstract: A supervised fire suppression system (10, 100) is disclosed that includes a discharge valve (14, 114) for controlling release of a fire extinguishing agent from a container (12), a control head (16, 116) operatively associated with the discharge valve for actuating the discharge valve in the event of a fire, wherein the control head may be removed from the discharge valve to facilitate inspection of the control head, and an internal supervisory switching device (130) mounted within the control head and configured to interact with the discharge valve to provide an indication that the control head has been removed from the discharge valve.

Abstract: A presence sensor device 8 for a building. The presence sensor device 8 is for detecting persons and includes a first radar sensor 14 and a second radar sensor 20. The first radar sensor 14 is arranged to operate with a first frequency band, a first power consumption, and a first range, with the second radar sensor 20 being arranged to operate with a second frequency band, a second power consumption, and a second range. The first frequency band is lower than the second frequency band and the first range is longer than the second range.

Abstract: A selective intrusion detection system includes a Doppler transceiver configured and adapted to receive Doppler return signals indicative of moving targets present in a surveillance space. A processor is operatively connected to the Doppler transceiver to convert Doppler return signals into spectrograms and to determine whether any given spectrogram is indicative of presence of a human or another moving target, like a domestic pet. An alarm is operatively connected to the processor, wherein the processor and alarm are configured to provide an alert in the event the processor determines any given spectrogram is indicative of a human, and to forego providing an alert in the event the processor determines any given spectrogram is indicative of another moving target only.

Abstract: Provided are embodiments for a system and a method for operating an omnidirectional antenna. Embodiments include operating a first antenna that includes a first input configured to receive an input signal, a plurality of subarrays configured for transmitting and receiving signals, and a ground plane of the first antenna. Embodiments also include operating a second antenna coupled to the first antenna that includes a second input configured to receive an input signal, a plurality of arms configured for transmitting and receiving signals, a ground plane of the second antenna, and coupling the ground plane of the first antenna and the ground plane of a second antenna.

Abstract: A refrigeration system comprising an evaporator, and a method of operating a refrigeration system. The evaporator comprises: a first fluid volume upstream of a second fluid volume, and a plurality of channels fluidly connecting the first fluid volume and the second fluid volume. The system further comprises a flow restrictor arranged to prevent fluid flow through at least a first channel of the plurality of channels in response to a pressure difference between the first fluid volume and the second fluid volume being less than a predetermined threshold, and to permit fluid flow through the first channel in response to the pressure difference being greater than the predetermined threshold.

Abstract: A system for providing wireless power transfer includes a primary antenna having a primary lens surrounding the primary antenna and a secondary antenna having a secondary lens surrounding the secondary antenna. The secondary antenna is operatively connected to power at least one sensor. A mains power source is operatively connected to power the primary antenna. The primary and secondary antennas are separated a distance apart to wirelessly transfer power from the primary antenna to the secondary antenna.

Abstract: A portable fire extinguisher is disclosed which includes a cylinder for storing a pressurized fire extinguishing agent and has a neck portion defining an outlet, and a flexible hermetic seal supported across the outlet of the cylinder, wherein the flexible hermetic seal is adapted and configured to transition between: an unexpanded condition corresponding to an unpressurized cylinder; an expanded condition corresponding to a pressurized cylinder; and a bursted condition corresponding to an opened cylinder.

Abstract: A portable fire extinguisher is disclosed which includes a cylinder for storing a pressurized fire extinguishing agent and has a neck portion defining an outlet, and a flexible hermetic seal supported across the outlet of the cylinder, wherein the flexible hermetic seal is adapted and configured to transition between: an unexpanded condition corresponding to an unpressurized cylinder; an expanded condition corresponding to a pressurized cylinder; and a bursted condition corresponding to an opened cylinder.

Abstract: A system for providing wireless power transfer includes a primary antenna having a primary lens surrounding the primary antenna and a secondary antenna having a secondary lens surrounding the secondary antenna. The secondary antenna is operatively connected to power at least one sensor. A mains power source is operatively connected to power the primary antenna. The primary and secondary antennas are separated a distance apart to wirelessly transfer power from the primary antenna to the secondary antenna.

Abstract: A method of calibrating a sensor (200) for a security system, the method comprising: switching the sensor (200) to a zone calibration mode for configuring the sensor (200) to operate with a detection zone; detecting a moveable object (202) moving along a border of the detection zone, wherein the sensor (200) detects the position of the moveable object (202) as the moveable object (202) moves along the border of the detection zone; calculating zone calibration data for the detection zone based on the detected positions of the moveable object (202); and configuring the sensor (200) to operate using the calculated zone calibration data.

Abstract: A supervised fire suppression system (10, 100) is disclosed that includes a discharge valve (14, 114) for controlling release of a fire extinguishing agent from a container (12), a control head (16, 116) operatively associated with the discharge valve for actuating the discharge valve in the event of a fire, wherein the control head may be removed from the discharge valve to facilitate inspection of the control head, and an internal supervisory switching device (130) mounted within the control head and configured to interact with the discharge valve to provide an indication that the control head has been removed from the discharge valve.

Abstract: There is provided a power supply device 100 for switching power to an output line 150 between a first power supply 120 and a parallel second power supply 122. The power supply device 100 comprises: a first converter 130 connected to the first power supply 120 and configured to output a first voltage in a first predetermined range; and a second converter 132 connected to the second power supply 122 and configured to output a second voltage in a second predetermined range. The outputs of the first and second converters 130, 132 are connected together on the output line 150, and the first and second converters 130, 132 are arranged to maintain a voltage on the output line 150 within a third predetermined range.

Abstract: A selective intrusion detection system includes a Doppler transceiver configured and adapted to receive Doppler return signals indicative of moving targets present in a surveillance space. A processor is operatively connected to the Doppler transceiver to convert Doppler return signals into spectrograms and to determine whether any given spectrogram is indicative of presence of a human or another moving target, like a domestic pet. An alarm is operatively connected to the processor, wherein the processor and alarm are configured to provide an alert in the event the processor determines any given spectrogram is indicative of a human, and to forego providing an alert in the event the processor determines any given spectrogram is indicative of another moving target only.

Abstract: A sensor data transmission system includes a central processor, first and second sensor assemblies, and first and second conductors. The sensor assemblies each include a sensor, a processor and a relay. The sensor is configured to detect a condition. The processor is configured to receive a condition detected signal from the sensor and open the respective relay at least once indicative of the condition and within a pre-determined time interval. The first conductor is electrically in contact with the processors of the first and second sensor assemblies and is interposed by the relay of the second sensor assembly. The second conductor is electrically in contact with the central processor and the processor of the first sensor assembly and is interposed by the relay of the first sensor assembly.

Abstract: A method for access authentication includes receiving a facial recognition picture from a mobile electronic apparatus of a user. The facial recognition picture is compared to a stored facial recognition picture of the user. If a positive match exists, an authorization key is transmitted to a locking mechanism. The stored facial recognition picture can include a picture stored on a picture database populated by each transmitted facial recognition picture. In certain embodiments, the facial recognition picture can be retrieved from on a social media account.

Abstract: A system for characterizing the environment and objects in the environment created by fusing a plurality of sensor data, comprising a plurality of radar sensors each radar sensor integrated into a wireless module. A processor is operatively connected to the plurality of radar sensors and to a memory, wherein the memory includes instructions recorded thereon that, when read by the processor, cause the processor to combine the sensor data to identify, monitor and characterize the environment and objects within the environment.

Abstract: A supervised fire suppression system (10) is disclosed that includes a valve assembly for controlling the release of a fire extinguishing agent from a container (17), an actuator (25) operatively associated with the valve assembly for actuating the valve assembly in the event of a fire, wherein the actuator may be removed from the system for periodic inspection and/or maintenance, and an externally mounted supervisory switching device (16, 30) configured to interact with the actuator to provide an indication relating to removal or disengagement of the actuator from the system for periodic inspection and/or maintenance.

Abstract: A system for delivery of a fire extinguishing agent includes an agent tank at least partially filled with a volume of liquid fire extinguishing agent and a supply of pressurizing gas operatively connected to inject pressurizing gas into the volume of liquid agent. A discharge valve is configured to open when the agent tank reaches a desired pressure due to the injection of pressurizing gas therein thereby delivering a flow including fire extinguishing agent with associated dissolved pressurizing gas from the agent tank. The flow of fire extinguishing agent and associated dissolved pressurizing gas is discharged from the agent tank.

Abstract: A system for boiler control is provided. The system includes supply units to provide supplies of combustion materials for combustion thereof, a vessel coupled to the supply units in which the combustion materials are combusted, a carbon monoxide (CO) sensor disposed at an outlet of the vessel to sense a quantity of exhaust CO output from the vessel as a product of combustion therein and a control unit. The control unit is coupled to the supply units and the sensor and configured to issue a main servo command and a pulse servo command to one or more of the supply units to control operations of the one or more supply units in accordance with the sensed quantity of the exhaust CO.

Abstract: A remote control for a monitoring system of a building is provided including a mobile device having a plurality of communication channels and a media storage area. An application is stored in the media storage area of the mobile device. The application is configured to communicate with a control panel of the monitoring system. The application dynamically selects a communication channel to establish a communication link with the control panel based on a predetermined hierarchy. The application operates in one of a plurality of modes based on the communication channel selected.