Personal security communication system

Details Personal security communication system Personal security communication system

G - Physics

08

B

325/19, 325/44

G08B 21/00 (2006.01)

Patent

CA 1301844

PERSONAL SECURITY COMMUNICATION SYSTEM Abstract of the Disclosure A personal security communication system is disclosed. The system may be configured as a buddy system comprising first and second portable portable units (100 and 200) acting as a pair (98). Each portable unit (100 and 200) produces status information and transmits data messages containing encoded status information to the other portable unit (200 and 100). The encoded status information includes a transmitting unit identification number and alarm condition information produced by manual alarm switches (104 and 204) and sensors (102 and202). The sensors (102 and 202) may include a motion sensor (45) or a motion andposition sensing switch (10) that produce motion and lack-of-motion signals thatare encoded in the status information. If one unit of the pair (98) produces status information containing emergency alarm information or receives a data message from the other unit of the pair (98) containing emergency alarm information or fails to receive a data message from the other unit of the pair (98) within a predetermined time limit, an alarm is produced.

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