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Machine translation
1. (WO1981002715) INFORMATION TRANSMISSION DEVICE THROUGH THE RAILS BETWEEN A RAILWAY TRACK AND A VEHICLE ASSEMBLY CIRCULATING ON THIS TRACK
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/002715    International Application No.:    PCT/FR1981/000042
Publication Date: 01.10.1981 International Filing Date: 24.03.1981
IPC:
B61L 3/22 (2006.01)
Applicants:
Inventors:
Priority Data:
8006570 25.03.1980 FR
Title (EN) INFORMATION TRANSMISSION DEVICE THROUGH THE RAILS BETWEEN A RAILWAY TRACK AND A VEHICLE ASSEMBLY CIRCULATING ON THIS TRACK
(FR) DISPOSITIF DE TRANSMISSION D"INFORMATIONS PAR LES RAILS ENTRE UNE VOIE DE CIRCULATION FERROVIAIRE ET UN ENSEMBLE DE VEHICULES CIRCULANT SUR CETTE VOIE
Abstract: front page image
(EN)Improvement to an information transmission device through the rails in which the propagation areas of the information carrying signals are indenpendent from the sections of the block-section system. According to the invention, the serial resonant circuit tuned on the information carrying frequency and connected between various rows of rails (1, 2) at the end of a transmission area formed by two identical serial resonant circuits disposed in parallel and each including a capacitor (101, 102) serially connected to the main winding (103, 104) of a transformer, the secondary winding (105, 106) of both transformers are connected serially and in opposition so as to provide an alternative signal at the terminals (110) of the circuit thus formed in case of failure of one of the resonant circuit. Application to the security of information transmissions.
(FR)Perfectionnement apporte a un dispositif de transmission d"informations par les rails dont les zones de propagation des signaux d"information sont independantes des sections du systeme de cantonnement. Selon l"invention, le circuit resonnant serie accorde sur la frequence porteuse d"informations et branche entre les deux files de rails (1, 2) a l"extremite d"une zone de transmission etant constitue par deux circuits resonnants serie identiques disposes en parallele et comprenant chacun un condensateur (101, 102) en serie avec l"enroulement primaire (103, 104) d"un transformateur, les enroulements secondaires (105, 106) des deux transformateurs sont connectes en serie et en opposition de maniere qu"un signal alternatif apparaisse aux bornes (110) du circuit ainsi forme en cas de defaillance de l"un des circuits resonnants. Application a la securite intrinseque des transmissions d"informations.
Designated States:
Publication Language: French (FR)
Filing Language: French (FR)