Described is a security sensor comprising two or more sub-sensors for use in a variety of installations where different magnetic fields may be experienced by the security sensor as a result of the variety of installations. One of the sub-sensors may have a low magnetic sensitivity while the other sub-sensor may have a much higher sensitivity to magnetic fields. In operation, one or both sub-sensors are used to determine if a door or a window has been opened.

Sensor-based privacy-event detection for a mounted electronic device is described. In aspects, a security system includes a head assembly removably and magnetically coupled to a mounting device having a magnet. The electronic device also includes a camera module and a sensor disposed within the housing. The sensor detects a magnetic field associated with the magnet when the head assembly is coupled to the mounting device. When a user detaches the head assembly from the mounting device (e.g., to recharge the electronic device), the sensor no longer detects the magnetic field and determines the occurrence of a privacy event, which is used to deactivate the camera module to prevent unintentional recordings during the privacy event.

A camera assembly may include a camera and one or more heat sinks configured to dissipate heat generated by the camera. The heat sinks being in thermal contact with a printed circuit board including the camera. A housing of the camera assembly may be configured to maintain the camera in a fixed position while the camera assembly is mounted on a medical device such as a dispensing cabinet. The camera in the fixed position may have a deterministic field of view that includes a first area in which interactions with the medical device and adjacent medical devices occurs or is expected to occur. The deterministic field of view of the camera may further exclude a second area where surveillance is unsuitable, prohibited, and/or unnecessary. Images captured by the camera may be analyzed to detect anomalous behavior such as diversion, medical error, hazardous behavior, and protocol noncompliance.

Described is a security sensor comprising two or more sub-sensors for use in a variety of installations where different magnetic fields may be experienced by the security sensor as a result of the variety of installations. One of the sub-sensors may have a low magnetic sensitivity while the other sub-sensor may have a much higher sensitivity to magnetic fields. In operation, one or both sub-sensors are used to determine if a door or a window has been opened.

A motion detector (1) for a security system includes a primary sensing system including a PIR sensor (5) configured to detect movement of a person within a monitored environment (2), and an ancillary sensing system including a first emitter (7), a second emitter (8) and a receiver (9) configured to detect masking of the primary sensing system. Masking by an object (10) in the monitored environment (2) is determined using the first emitter (7) and the receiver (9) based on a time-of-flight of an optical signal emitted into the monitored environment (2) and reflected by the object (10). Masking by obscuring of a window (4) of the motion detector (1) is determined using the second emitter (8) and the receiver (9) based on the intensity of light transmission from the second emitter (8) through the window (4) to the receiver (9).

A system for detecting the position of at least one moveable element of a window or door, the system comprising: at least one sensor for sensing a magnetic field, the at least one sensor being configured such that the magnetic field sensed changes as said moveable element moves; and a processor configured to receive output signals associated with the sensed magnetic field and to determine the position of said moveable element; wherein the system is configured to operate in a calibration mode and a normal mode, wherein in the calibration mode the system is configured to register at least an output value from said sensor when said moveable element is at a first predetermined position as a corresponding first reference value and wherein in the normal mode the processor means is configured to use the first reference value in determining the position of the at least one moveable element.

An electric utility meter including a Hall Effect sensor configured to sense a magnetic field proximate the electric utility meter. The electric utility meter also includes a controller having an electronic processor, the controller configured to receive a signal indicative of a magnitude of the magnetic field proximate the electric utility meter from the sensor, determine whether the magnitude of the magnetic field exceeds a first magnitude threshold and whether a threshold flag has been set, set the threshold flag when the threshold flag has not been set and the magnitude exceeds the first magnitude threshold, determine an amount of time for which the magnitude has exceeded the first magnitude threshold when the threshold flag has been set, and generate an alert indicative of a magnetic tamper event when the amount of time exceeds a time threshold.

There is provided a method of installing a magnetic proximity sensor including positioning the magnetic field sensor in a desired location and positioning a magnet in a desired location relative to the magnetic field sensor, with an indicator of the sensor continuing to be turned on during the predetermined period of time when the magnetic field generated by the magnet is sensed by the magnetic field sensor, and being turned off during the predetermined period of time when the magnetic field generated by the magnet is not sensed by the magnetic field sensor. The indicator light thus assists in determining proper relative positioning of the magnet and the magnetic field sensor. If after the predetermined period of time more time is needed to install the magnetic proximity sensor, the method includes initiates another predetermined period of time by removing and replacing a lid of the magnetic proximity sensor.

A system and method provide for the immediate transmission of a potential alarm to a remote alarm signal escrow site and from the escrow site to a host station in the event where a control panel or an alarm signaling device is tampered with or destroyed by a disablement tactic, e.g., a “crash and smash intrusion.” A system and method may also send an alarm signal during such an attack by using predictive analysis of real-time events.

A service management system facilitates service on building management systems. A connected services system of a connected services system stores temperature information from temperature detectors of building management systems (including heat detectors of fire alarm systems and thermostats of building automation systems), which send sensor values to control panels, which, in turn, send the temperature information to the connected services system. A temperature detector evaluation module of the connected services system retrieves the temperature information from the connected services database, generates aggregate temperature information based on the temperature information and then determines which of the temperature detectors require service based on the aggregate temperature information, for example, by detecting outlier temperature information. Scheduled service tasks for the temperature detectors requiring service are then pushed to a service workflow module, which sends the scheduled service tasks to a mobile computing device operated by a technician performing the service.