초록 ▼

A house arrest monitoring system that automatically verifies the presence or absence of prisoners, patients or other personnel who are required to remain at a prescribed location or to report to the prescribed location at a certain time. The system includes an identification tag that is worn by the

A house arrest monitoring system that automatically verifies the presence or absence of prisoners, patients or other personnel who are required to remain at a prescribed location or to report to the prescribed location at a certain time. The system includes an identification tag that is worn by the individual being monitored. This tag transmits an identification signal that includes a unique identifying code, as well as status information that indicates whether the tag has been removed from near the flesh of the individual being monitored. The tag is totally self-contained and includes circuitry to sense when the tag is held near the flesh of the individual, as well as code generating and transmitting circuitry to periodically generate and transmit the identification signal. A field monitoring device (FMD) is included at the prescribed location to receive and process the identification signal, and to communicate with a central processing unit (CPU) located at a remote central monitoring location. The CPU is able to communicate with a large number of FMD\s located at diverse field locations.

대표청구항 ▼

A system for monitoring the presence or absence of an individual within a defined area, said system comprising: (a) an identification tag that is attached to the individual, said identification tag including: a first power source, sensing means for sensing prescribed conditions associated with the o

A system for monitoring the presence or absence of an individual within a defined area, said system comprising: (a) an identification tag that is attached to the individual, said identification tag including: a first power source, sensing means for sensing prescribed conditions associated with the operation and use of said tag, and means coupled to said first power source for periodically transmitting in short data bursts an identification signal including identification information that uniquely identifies said tag, and hence the individual to whom the tag is attached, and status information that indicates the prescribed conditions sensed by said sensing means; (b) receiving means positioned within said defined area for receiving said identification signal; (c) processing means coupled to said receiving means for noting the time of receipt and content of the received identification signals, from which time and content information a determination can be made as to the presence or absence of the individual within the defined area during any given time period; and (d) tamper means included within said processing means for sensing one of a plurality of tamper conditions associated with the use of said processing means and for generating a tamper condition signal in the event that one of said plurality of tamper conditions occurs.