Fail-safe block control system for driverless vehicles

Details Fail-safe block control system for driverless vehicles Fail-safe block control system for driverless vehicles

1976-12-07

1977-12-20

Kunin, Stephen G.

Railway switches and signals

Block-signal systems

Automatic

104153, B61L 110, B61L 2108, B61L 2110

Patent

active

040636992

ABSTRACT:
Driverless vehicles move in one direction along a path divided into blocks. Movement command signals are radiated from plural elongated radiators per block, arranged end-to-end, the last in each block a departure radiator wholly within the block. A receiver in each vehicle comprises a memory element established in active condition by a momentary "clear" signal and maintained in active condition by a continuous succession of movement command signals. A departure radiator emits no movement command signals while the block directly ahead of it is occupied, but it emits a "clear" signal and continuous movement command signals when that block is safe for entry. Only departure radiators emit "clear" signals; hence, a vehicle which slides into an occupied block cannot continue moving in that block.

REFERENCES:
patent: 3710100 (1973-01-01), Perry

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