Devices along the route controlled by interaction with the vehicle or vehicle train

BPERFORMING OPERATIONS TRANSPORTING B61Railways B61LGUIDING RAILWAY TRAFFIC ENSURING THE SAFETY OF RAILWAY TRAFFIC

B61L1/00Devices along the route controlled by interaction with the vehicle or vehicle train

B61L1/02Electric devices associated with track B61L1/025actuated by variation of resistance or by piezo-electricity B61L1/04mechanically actuated by a part of the vehicle B61L1/045actuated by fluid-pressure B61L1/06actuated by deformation of rail actuated by vibration in rail B61L1/08magnetically actuated electrostatically actuated B61L1/10actuated by electromagnetic radiation actuated by particle radiation B61L1/12Electric devices associated with overhead trolley wires B61L1/14Devices for indicating the passing of the end of the vehicle or vehicle train B61L1/16Devices for counting axles Devices for counting vehicles B61L1/161characterised by the counting methods B61L1/162characterised by the error correction B61L1/163Detection devices B61L1/164Mechanical B61L1/165Electrical B61L1/166Optical B61L1/167Circuit details B61L1/168Specific transmission details B61L1/169Diagnosis B61L1/18Railway track circuits B61L1/181Details B61L1/182Use of current of indifferent sort or a combination of different current types B61L1/183Use of means on the vehicle for improving short circuit B61L1/184Use of additional conductors for examining leakages between rails B61L1/185Use of direct current B61L1/186Use of rectified alternating current B61L1/187Use of alternating current B61L1/188Use of coded current B61L1/20Safety arrangements for preventing or indicating malfunction of the device