“铁路道口语言自动报警器”是一种保护铁路道口(包括森林铁路)交通安全的报警装置,它是由安装在离铁路进口一公里左右的声传感器,将火车车轮转动所产生的声波,转换成电脉冲信号,传送到“铁路道口自动语言报警器”,控制计数器,单稳态触发器,多谐振荡器,信号控制器等电路设备工作,声、光、语言同时报警。具有报警距离远、时间适宜、灵敏度高、设备运行可靠等特点。 “Railway crossing language automatic alarm” is a railroad crossing (including forest railway) traffic safety alarm device, which is installed at about 1 km away from the railway entrance of the acoustic sensor, the train wheel rotation generated by the sound, conversion Into electrical pulse signal, sent to the “automatic voice alarm at railroad crossing”, control counters, monostable triggers, multivibrator, signal controller and other circuit devices work, sound, light, language at the same time alarm. Alarm with a long distance, time suitable, high sensitivity, equipment and reliable operation.