Railway alarm on guardfree crossroad

The utility model relates to an alarm for an unattended railway crossing, which is a device for forecasting the transit of a train to the unattended railway crossing. The utility model is composed of a signal collecting emitter and a signal receiving alarm, wherein the signal collecting emitter is installed at the position which is 1.5 km away from the unattended railway crossing along the up-run or the down-run, the signal of the train transit is collected by a signal collecting device, and the signal which is A/D converted by an A/D converter and processed by a microprocessor is encoded and wirelessly emitted by an encode emitter. The signal receiving alarm is installed at the point of the unattended railway crossing. After the signal of the train transit, which is emitted wirelessly by the signal collecting emitter, is received by a signal receiver, the signal is decoded by a decoder and processed by the microprocessor, and then a sound and light alarm signal is sent out by the alarm.