Control system with improved communication for centralized contr

Details Control system with improved communication for centralized contr Control system with improved communication for centralized contr

1977-04-25

1978-06-06

Blix, Trygve M.

Railway switches and signals

Train dispatching

Central signal control

364436, 246187B, 246187A, B61L 2700

Patent

active

040931617

ABSTRACT:
A control system for a plurality of vehicles provides for efficient communication while minimizing necessary bandwidth and communication delays. Periodic reports are received from the vehicles by a controlling authority. All vehicles in motion continually receive a permissive GO signal. When the controlling authority determines a vehicle should be stopped, it immediately addresses a STOP command thereto. The addressed vehicle acknowledges the message. Failure of the controlling authority to receive the acknowledgement results in removal of the permissive GO, stopping all vehicles.

REFERENCES:
patent: 3268727 (1966-08-01), Shepard
patent: 3794833 (1974-02-01), Blazek
patent: 3819932 (1974-06-01), Auer, Jr.
patent: 3964702 (1976-06-01), Lardennois

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