Communications: electrical – Systems – Signal box type
Patent
1974-09-30
1976-11-02
Caldwell, John W.
Communications: electrical
Systems
Signal box type
340312, 340286, G08B 2500
Patent
active
039900673
ABSTRACT:
Apparatus for use in establishing a security system having a tour route which is followed by a guard, and having a plurality of tour stations spaced along the tour route. An electronic tour key is carried by the guard to each of the tour stations on the tour route for plug-in electrical connection therewith. Address codes are set in the tour stations and the electronic tour key for identifying a specified tour route and specific stations along the tour route. A tour information signal is generated by the electronic tour key after plug-in electrical connections have been made with a predetermined number of tour stations. The tour information signal is connected to a means for receiving such signals and for transmitting security information to a remote monitoring station. Programming and verifying means are provided for setting predetermined tour station address codes and for subsequently verifying tour station address codes and address codes which have been preset in the electronic tour key.
REFERENCES:
patent: 3466605 (1969-09-01), Schoenwitz
patent: 3573620 (1971-04-01), Ashley
patent: 3736561 (1973-05-01), Rumpel
patent: 3781845 (1973-12-01), Ellul
patent: 3806882 (1974-04-01), Clarke
patent: 3848229 (1974-11-01), Perron
patent: 3860911 (1975-01-01), Hinman
patent: 3872435 (1975-03-01), Cestaro
Kaiser Bruno
Van Dusen Charles Harrison
Caldwell John W.
Sentry Technology Incorporated
Wannisky William M.
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