Improved positive signal comparator and method

Details Improved positive signal comparator and method Improved positive signal comparator and method

B - Operations, Transporting

61

L

B61L 3/02 (2006.01) B61L 13/00 (2006.01) B61L 23/00 (2006.01) B61L 25/02 (2006.01) G05B 1/01 (2006.01) G05B 11/01 (2006.01)

Patent

CA 2547810

A positive signal comparator system (100) comprises a transceiver (140) located on a train for transmitting an interrogation signal to a wayside signal device (190) and receiving a response signal from the wayside signal device (190), an input device through which an operator enters a signal in response to the signal received from the wayside signal (device190), and a controller (110) including a signal comparator for determining if the signal input by the operator matches the signal received from the wayside signal device and taking corrective action if the operator fails to enter the proper signal. In some embodiments, the corrective action comprises activating a warning device and/or activating the train's brakes. In some embodiments, the invention further comprises a display for displaying the signal received from the wayside signal generator to the operator.

L'invention concerne un système de comparaison (100) de signaux positifs comprenant un émetteur-récepteur (140) situé sur un train pour transmettre un signal d'interrogation à un dispositif de signaux (190) en voies et recevoir un signal de réponse provenant du dispositif de signaux (190) en voies ; un dispositif d'entrée, à travers lequel un opérateur entre un signal en réponse au signal reçu du dispositif de signaux (190) en voies, et un dispositif de commande (110) comprenant un comparateur de signaux permettant de déterminer si le signal entré par l'opérateur correspond au signal reçu du dispositif de signaux en voies et prendre une mesure correctrice si l'opérateur manque d'entrer le signal approprié. Dans des modes de réalisation de l'invention, la mesure correctrice comprend l'activation d'un dispositif d'alarme et/ou l'activation des freins du train. Dans d'autres modes de réalisation, l'invention concerne un écran permettant d'afficher le signal reçu du générateur de signaux en voies vers l'opérateur.

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