| 摘要 |
A proximity-activated location detection system is used for determining the geographic positions of one, or several locator hardware-sets. The system calculates the separation distance and time between the hardware-sets from each other, or from predetermined, fixed geographic positions, such as a residence, or workplace. Each of the locator hardware-sets within the proximity-activated location detection system consists of one portable wireless communication device that includes a transmitter and a receiver, one portable geographic locating device and one integration module assembly device. The integration module assembly contains the necessary hardware that interprets data from the geographic location device, calculates any necessary values, and sends messages using the wireless communication device. During operation, the locator hardware-sets may communicate with a central monitoring station and with each other. Each hardware-set is assigned a unique, identifying set-number allowing it to be associated with the person, or other entity.
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