Abstract:
The present invention provides a low battery trouble signal delay circuit for a smoke detector configured for periodically measuring environmental conditions and for producing a fire alarm signal when smoke is detected in the environment. The trouble signal delay circuit has a battery, a comparator configured for receiving a voltage measurement signal from the battery and a reference voltage measurement signal and sending a resulting signal to an activator circuit, at least one activator in the activator circuit that is user activated upon receiving a first input; and at least one low battery trouble signal annunciator connected to the activator circuit and configured for indicating that the voltage measurement signal is below the reference voltage measurement after receiving a signal from the comparator. The activator temporarily disables the low voltage trouble signal when activated for a silencing time period, while maintaining the operation of the fire alarm signal.
Abstract:
A security monitor system for a transport unit is provided. The security monitor system may include at least one security sensor configured to detect a fault condition, and a controller having a plurality of inputs, a plurality of outputs, and a low power control circuit. The low power control circuit may provide electrical communication between a battery of the transport unit, the security sensor, and at least one of the inputs of the controller. The control circuit may be configured to maintain the controller in low power mode when there are no detected fault conditions, and to enable power to the controller when there is a detected fault condition.
Abstract:
A system and method for testing the capacities of battery backups in alarm systems. The system may include an alarm panel, a notification device connected to the alarm panel, a battery backup connected to the alarm panel and configured to provide the alarm panel and the notification appliance with electrical power. The system may further include test circuitry that is configured to monitor a voltage and an output current of the battery backup when the battery backup is placed under a battery capacity test, and a system controller that is configured to determine, from the monitored voltage and output current of the battery backup, information relating to the capacity of the battery backup. Such information may be communicated to a workstation or an offsite monitoring facility where it may be compiled with information relating to the capacities of other battery backups in the alarm system to create a report.
Abstract:
Systems and devices for and methods of energy management, property security and fire hazard prevention are provided. The systems, devices and methods are able to be centralized, computerized, and expandable. The devices and systems are capable of automatically reducing energy consumptions and minimizing losses of property caused by fire, theft, and vandalism using monitoring sensors (e.g., occupancy sensors) and computer software and equipments.
Abstract:
A smoke detector with an easily-readable battery-life display is an apparatus that visually displays the remaining battery life for a smoke detector through an analog or digital device. The apparatus primarily includes a smoke detector, a battery power indicator, and a reference resistor. The battery power indicator is positioned on the underside of the smoke detector so that a person can look up at the smoke detector mounted on a ceiling and view the battery power indicator. The reference resistor draws a small amount of current from the battery, which allows the battery power indicator to measure the gradual reduction of voltage readings across the reference resistor and consequently determine the remaining battery life, and thus displaying the remaining battery life in the appropriate zone (red, yellow or green).
Abstract:
A fire detector has a detection unit working on the optical scattered-light principle, as well as an electronic evaluation unit. An acoustic and/or optical warning device outputs an acoustic and/or optical alarm when a fire is detected. The fire detector has an energy storage device, in particular a battery, for the autarkic supply of electrical power to the fire detector as well as a voltage measuring unit for measuring a battery voltage present at the energy storage device. A warning device outputs an acoustic warning if the battery voltage falls below a first voltage threshold. The fire detector also has a sensor sensitive to ambient light and a device for suppressing the output of the acoustic warning if the ambient light falls below a predefinable brightness threshold. The detection unit is an open scattered-light detection unit with a detection space outside the fire detector and the sensor sensitive to ambient light is at the same time an optical receiver of the scattered-light detection unit.
Abstract:
A mounting system for an electronic device is described. This mounting system includes a base that can be rigidly mounted on or underneath a wall. Moreover, the base can be remateably coupled to the electronic device. The remateable coupling may involve pins that are inserted into corresponding holes and rotated into a lock position. Alternatively, the remateable coupling may involve magnets that mechanically couple to each other so long as the electronic device and the base are within a predefined distance. The electronic device may receive power via the remateable coupling or via inductive charging. In addition, the electronic device may monitor a spatial parameter, such as: a location of the electronic device, a velocity of the electronic device and/or an acceleration of the electronic device. If this spatial parameter changes without the electronic device first receiving a security code, the electronic device provides an alert.
Abstract:
An environmental monitoring device that includes a sensor mechanism is described. During operation of the environmental monitoring device, the sensor mechanism provides sensor data based on measurements of environmental conditions in an external environment that includes the environmental monitoring device. Moreover, a control mechanism assesses if the environmental conditions indicate at least one of a set of threats. If yes, the control mechanism provides a corresponding alert. Furthermore, the environmental monitoring device includes a power source with a primary power source and a secondary power source. The secondary power source has at least a 10-year life and may power at least a subset of the functionality of the environmental monitoring device in the event the primary power source fails. For example, the sensor mechanism may include a smoke detector that is powered by the secondary power source in the event the primary power source fails.
Abstract:
An environmental monitoring device that includes a sensor mechanism is described. During operation of the environmental monitoring device, heat generated by a processor in the environmental monitoring device may result in a convective fluid flow over the sensor mechanism that facilitates measurements of sensor data associated with an environmental condition in an external environment that includes the environmental monitoring device. Alternatively, a fluid driver (such as a fan) associated with the processor may produce the fluid flow over the sensor mechanism. Note that the fluid flow may include an airflow and/or a liquid flow. Moreover, the environmental monitoring device may include baffles that direct the fluid flow over a selected sensor in a set of sensors in the sensor mechanism.
Abstract:
Systems, methods, and devices for cooperative intrusion detection are described herein. For example, one or more embodiments include completing a radar scan with a network of outer perimeter radar nodes, detecting an intrusion event with the network of outer perimeter radar nodes, notifying at least one inner perimeter radar node in a network of inner perimeter radar nodes of the intrusion event, activating the at least one inner perimeter radar node from an idle mode in response to the notification of the intrusion event, and completing a radar scan with the at least one inner perimeter radar node upon activation.