Location systems

Communications: electrical – Selective – Having indication or alarm

Patent

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Details

340152R, 23515027, G08G 112

Patent

active

039848060

ABSTRACT:
A vehicle location system for vehicles travelling over a predetermined route in which equipment in the vehicle derives information concerning the distance travelled from predetermined junctions and the turns made and computing means within the vehicle computes the route between road junctions on which the vehicle is travelling. Each vehicle carries transmitter means for transmitting computed location information to a base station when interrogated by the same.

REFERENCES:
patent: 3568161 (1971-03-01), Knickel
patent: 3849636 (1974-11-01), Helms
patent: 3886515 (1975-05-01), Cottin

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