(19)
(11) EP 0 005 968 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.01.1980 Bulletin 1980/01

(43) Date of publication A2:
12.12.1979 Bulletin 1979/25

(21) Application number: 79300940

(22) Date of filing: 25.05.1979
(84) Designated Contracting States:
BE CH DE FR NL SE

(30) Priority: 30.05.1978 GB 2401678

(71) Applicant: WESTINGHOUSE BRAKE AND SIGNAL COMPANY LIMITED
 ()

(72) Inventor:
  • Norton, David John
     ()

   


(54) Railway control communication system


(57) An electronic or computer-based railway control system wherein control signals are transmitted between a control or interlocking room and wayside or track equipment by means of time division multi-plexed signais. Several such T.D.M. communication systems are employed in parallel to provide redundancy, and each address location has a majority voting circuit, to determine a correct signal in the event of disagreement between signal, and an out-of-coincidence circuit to indicate which system is carrying the erroneous signal.






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