Security monitoring and tracking system

Communications: directive radio wave systems and devices (e.g. – Directive – Position indicating

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342450, 342389, 340539, 340 63, G01S 302, B60R 2500

Patent

active

046511571

ABSTRACT:
A method and apparatus for positively indicating the position of a land-based vehicle, a marine vessel or an aircraft, utilizing a security system provided in the secured mode of transportation monitored by a central station. Navigational information transmitted by LORAN-C transmitters or satellite transmitters are received and then retransmitted to the central station which determines the exact latitude/longitude coordinates of the secured mode of transportation. The secured mode of transportation also includes a security panel for monitoring the condition of various parameters. An interface is connected to the security panel and the navigational receiver for coordinating the transmission of information relating to the conditions monitored by the security panel as well as the information received by the navigational receiver before they are sent to a radio for transmission to the central station.

REFERENCES:
patent: 3518674 (1970-06-01), Moorehead et al.
patent: 3680121 (1972-07-01), Anderson et al.
patent: 3757290 (1973-09-01), Ross et al.
patent: 3789409 (1974-01-01), Easton
patent: 3848254 (1974-11-01), Drebinger et al.
patent: 4222052 (1980-09-01), Dunn
patent: 4435711 (1984-03-01), Ho et al.
patent: 4547778 (1985-10-01), Hinkle et al.
Carey and Welsh, "Location and Control of Vehicles" The SERT Journal V5, 7/71, No. 4, pp. 87-92.

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