G - Physics – 05 – D
Patent
G - Physics
05
D
341/84
G05D 1/02 (2006.01)
Patent
CA 1153811
VEHICLE GUIDANCE SYSTEM WITH RADIO BLOCKING Abstract of the Disclosure. A system for guiding unmanned vehicles (35) along a traffic layout includes a plurality of code devices (49, 51-55, 57-59) dividing the traffic layout in-to zones and identifying each zone by a unique code. Each vehicle includes control circuits (30) having code sensors (31) which sense the identifying code as the vehicle enters a zone and provide data to a present memory (80) which stores present address data representing the identity of the zone in which the vehicle is traveling. A past memory (81) stores past address data representing the identity of the zone in which the vehicle was previously traveling. A time slot generator (84) provides timing signals defining a plurality of time slots, each assigned to a different zone. A comparator circuit (83) responds to the past address data and the timing signals to effect transmission of a position signal during the time slot assogned to the zone in which the vehicle was previously traveling. A further comparator circuit (82) responds to the present address data and the timing signals to cause the vehicle to be halted whenever a position signal is received during the time slot assigned to the zone in which the vehicle is presently traveling.
349625
Deliban Robert
Lieby David G.
Barrett Electronics Corporation
Osler Hoskin & Harcourt Llp
LandOfFree
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