| 摘要 |
An electronic house arrest monitoring (EHAM) system allows a monitoring officer, charged with the responsibility of making periodic and/or random physical checks with individuals whose presence at specific locations is being electronically monitored through the EHAM system, to immediately and silently report to a central monitoring location that backup help or assistance is needed at the monitoring location. The EHAM system includes an in-house monitoring unit (IMU) installed at or positioned near specific monitoring locations, that electronically monitors the specific monitoring location for the presence of a unique identifying signal, periodically transmitted from an electronic tag worn by a monitored individual. Telecommunicative contact is periodically and/or randomly established between the central monitoring location and the IMU. The monitoring office carries a small pocket transmitter. If the officer senses danger or otherwise needs backup assistance at or near a monitored location, the office siliently activates a transmit switch on the pocket transmitter that causes a "needs assistance" signal to be transmitted. The "needs assistance" signal is received by the IMU and immediately relayed, along with address-identifying data, to the central monitoring location. A "needs assistance" signal received at the central monitoring location causes immediate help or assistance to be dispatched to the indicated address.
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