A wireless dual technology displacement sensor (“displacement sensor system”) and method are disclosed. The displacement sensor system includes an analyzing sensor for determining a range to a measuring point and a trigger sensor for activating the analyzing sensor. The trigger sensor is an accelerometer or an optical proximity sensor (OPS), in examples. The analyzing sensor is preferably a time of flight range sensor. When installed as part of a door system having a door and door frame, for example, the trigger sensor detects movement of the door, and activates the analyzing sensor in response. The analyzing sensor then determines the range to the measuring point, such as the door frame. This two sensor system can be thus used to prevent the high current consumption of existing displacement sensor systems.

A wearable emergency notification device configured for wearing around a human wrist is described. The device comprises an accelerometer for fall detection, a heart rate sensor for anomaly detection, an activation button for activation detection, a positioning system for determining position data, and a communication system for data communication. Upon detection of a fall and/or anomaly and/or activation, position data is determined, and an emergency signal comprising the position data is transmitted.

A premises control unit in communication with at least one battery operated sensor of a premises security system is provided. The premises control unit includes processing circuitry configured to configure at least one parameter for the at least one battery operated sensor where the configuration of the at least one parameter is based at least on data collected by the premises security system, and the at least one parameter includes at least sleep cycles for the at least one battery operated sensor.

Low-power vehicle sentinel systems and methods are disclosed herein. An example method includes obtaining electromagnetic signals in a target area surrounding a vehicle. The electromagnetic signals can be obtained from electromagnetic elements mounted to the vehicle. The method can include determining attributes or behaviors of an object in the target area based on the electromagnetic signals and executing a response measure based on the attributes or behaviors of the object.

The present invention provides an induction-based data identification system characterized by real-time response, including: a plurality of mobile identity terminals that can be carried, a gateway system and a background computer. The system configuration and method process of the invention are reasonable; it has both the features of recording any update status data of the objects and real-time response without affected by large amount of information; in addition, the mobile identity terminal has a low power consumption, suitable for the occasions of long-time use, such as anti-theft systems of shopping malls, places of detention, warehouse management, etc.

An alarm apparatus, for detecting radiation and/or pollutants including smoke and carbon monoxide, comprises an alarm circuit including a detector for radiation and/or pollutants and an audible alarm emitting device. A power supply circuit, connectable to an external AC power supply, supplies power to the alarm circuit. A controller operates the power supply circuit in a first mode of operation in which it supplies current to the alarm circuit at a first power level less than that required to energize the audible alarm emitting device and, in response to the detection of radiation and/or pollutants, operates the power supply in a second mode of operation in which it supplies current to the alarm circuit at a second power level sufficient to energize the audible alarm emitting device.

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.

A controlled battery includes a housing shaped in order to fit inside a battery compartment of an electrical device. The housing includes mechanical connectors on an exterior surface of the housing, adapted to couple to conventional battery electrical terminals of the electrical device. The controlled battery further includes an energy storage, such as a battery, inside the housing which stores energy and a voltage regulator which delivers a voltage to the mechanical connectors of the controlled battery from the energy storage, the voltage configured to be a consistent output voltage that does not deviate from a characteristic output voltage of the controlled battery until the energy storage is substantially depleted of energy.

An emergency call (E-call) system may execute control such that an E-call battery operates in a 1 series 1 parallel (1S1P) mode or a 1 series 2 parallel (1S2P) mode depending on the temperature of a usage environment of the E-call battery to improve the discharge performance of the E-call battery in a low-temperature environment. A method for controlling an operation of the E-call system is also disclosed.

A portable alarm system is disclosed. The portable alarm system includes a portable base station, which has an outer housing that encloses a power supply and a secondary protective housing. The secondary protective housing encloses at least a controller and a cellular modem that are electrically connected to each other. An energy storage device, such as a super capacitor, is configured to maintain a store of energy and is electrically connected to the controller and the cellular modem to provide an alternative power source thereto.