Abstract: An apparatus and method for the determination of the attitude of a remotely monitored device attached or non-attached to the body of a remotely monitored person is disclosed. The device attitude is determined by two tilt-over switches having pre-defined operating angles that operate in combination. Periodically, indication concerning the number degrees of inclination measured by two tilt-over switches is obtained and a device attitude monitoring calculation is performed based on the indications.

Abstract: A receiving unit and method for determining the distance of an object from a receiving unit in a monitoring system, the receiving unit receives transmitted signals, the receiving unit comprises an attenuating unit for attenuating the transmitted signals by a controlled factor; a receiver for receiving and processing the transmitted signals into readable data; a microcontroller for controlling the operation of the local monitoring unit; and an electronic circuitry for calculating the received strength signal indication, whereby the distance of an object from the receiving unit can be determined.

Abstract: A monitoring device, such as a watch, for monitoring, at a remote location, movements and activities of a person, the device is worn around the wrist of the person being monitored, the device comprising, a housing, a strap connected to the housing for fastening the device around the wrist of the person being monitored, a tamper sensor for detecting tampering with or the removal of the device from the person's wrist. It further includes electronic circuitry enclosed within the housing. The circuitry includes a microprocessor and a memory device for receiving and processing data and a transmitter for periodically transmitting data to a remote location and a time display, coupled to a clock mechanism, mounted in the housing so as to be displayed at the front face of the housing.

Abstract: A monitoring and tracking system comprising a plurality of transmitting tags attachable to a plurality of monitored individuals, a plurality of monitoring devices and a central monitoring server. The transmitting tags, each having a unique code, periodically transmit data carrying signals, the signals are received by any of the local monitoring devices when a tag is within a reception range of a local monitoring device for allowing tracking the monitored individuals.