Tag for use with personnel monitoring system

Abstract From the Canadian patent

A tag for use with an individual monitoring system. The tag is worn by an individual being monitored preferrably on, the ankle or leg where it can be concealed by the clothing of the individual. The tag is fully self contained and sealed. The ciruits of the tag periodically generate an identification signal that includes an identification code. The identification signal modulates a stable RF signal that is transmitted in bursts of data words to a receiver associated with a field monitoring device (FMD) located at the monitoring location. In turn, the FMD may randomly establish communication with a central processing unit (CPU) located at a central monitoring location. Other information is …