Data communication from moving goods wagon - uses pick=up coil on vehicle to receive impulses from coil on track side and re-transmits sensor data to data processor further along track

摘要

To obtain operating data from a moving vehicle such as a goods wagon, temperature sensors (F1,F2,F3) are mounted in the region of the axle and connected to a data measuring and transmission device (3) which also contains an energy store. The latter is connected to a coil (4) which travels parallel to a stationary energy transmitting coil (5) as well as a data transmission coil (6). The energy coil (5) is connected with an emitter (7) which gives out a high frequency magnetic field which is picked up by the coil (4) on the goods wagon as it passes by. This electrical energy supplies the data measuring and transmitting device (3) as well as the temperature sensors (F1,F2,F3), so that after a set time, signals containing data are emitted by the coil on the wagon and picked up by another coil mounted further along the track. This data can be processed and the condition of the axles interpreted i.e. whether any temperature rise due to overloading is present.