目前,国内多数矿井提升机采用电铃及灯光组成的简易声光信号装置。这种装置的优点是线路简单、操作方便、传递迅速,符合矿井使用环境。但铃声音响及灯光闪动瞬息即逝,过后不留痕迹;因此,信号工发错点,绞车工听错信号而造成事故时有发生。为了防止事故,我们研制了一种提升机信号数显仪,弥补了当前信号系统存在的缺点, At present, most domestic mine hoist using light bells and lights composed of simple sound and light signal device. The advantages of this device is the line is simple, easy to operate, pass quickly, in line with the mine environment. But the ring sound and light flashing fleeting, leaving no trace after; therefore, the signal made the wrong point, the winch workers hear the wrong signal and caused accidents have occurred. In order to prevent accidents, we developed a hoist signal digital display instrument to make up for the shortcomings of the current signal system,