Control systems for controlling the passage of vehicles

Details Control systems for controlling the passage of vehicles Control systems for controlling the passage of vehicles

1987-11-02

1989-08-22

Reeves, Robert B.

Railway switches and signals

Block-signal systems

340539, B61L 2100

Patent

active

048588598

ABSTRACT:
An improved control system is described for controlling the passage of a vehicle between certain control points, the control is achieved by passing electronic tokens, which permit movement of the vehicle past a control point, between a signal box and the vehicle via a first data communications channel which is security interlocked by solid state interlocking in the data channel. A communications processor is included in the interlocking and forms part of the vital safety system of the interlocking. The improvement comprises the provision of a second data communications channel between the signal box and train, this second channel interfacing with the solid state interlocking. At the signal box a keyboard may be provided for feeding data to the interlocking and the second communications channel may communicate with the vital part of the solid state interlocking via a similar route to the keyboard.

REFERENCES:
patent: 4307859 (1981-12-01), Hayashi et al.
"Railways in the Electronic Age", Institution of Electrical Engineers Conference Publication 203, Nov. 1981, pp. 1-5.

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