DEVICE TO PREVENT EMERGENCY SITUATIONS AT RAILWAY CROSSINGS Russian patent published in 2000 - IPC

FIELD: railway transport. SUBSTANCE: invention relates to railway automatic controls and it can be used to preclude emergency situations in railway crossing dangerous zone (collision of vehicles). For this purposed known device is furnished additionally with stubs and generator equipment providing recording of road vehicles in crossing zone and forced braking of road vehicles by means of receivers with track signal decoding units installed on road vehicles. Current sensors installed in stub supply circuit, track actual value of signal current in stubs. For operative control of road vehicle in case of failures of additional equipment, sealed buttons are provided in vehicle control circuit. At forced braking of vehicle, it can resume its motion only after passage of train through crossing. EFFECT: enhanced reliability of device and enlarged operating capabilities. 4 dwg