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一、概况 我国煤矿斜井、暗斜井人车通讯比较落后,一般采用拉线打点或采用127伏断路信号。这些信号既不安全又不可靠,因而影响人员的正常运送工作。因此迫切需要研究解决煤矿斜井的通讯问题。 感应通讯机是一种很有前途的通讯工具,在煤矿井下架设感应线可以形成一个比较完整的通讯网。近几年来,我国虽有几种井下通讯机,但由于种种原因,一直未能得到广泛应用。国外从40年代起就开始研究井下无线电话,至今已得到迅速发展。特别是日本,已在煤
I. Overview China’s coal mine inclined shaft, dark inclined well-off vehicle communication is relatively backward, the general use of pull line RBI or 127-volt open circuit signal. These signals are neither safe nor reliable, thus affecting the normal delivery of personnel. Therefore, there is an urgent need to study and solve the communication problems of inclined shafts in coal mines. Induction communication machine is a promising communication tool, erecting induction lines in the coal mine can form a more complete communication network. In recent years, although there are several underground communication machines in our country, due to various reasons, it has not been widely used. Abroad has been studying underground radiotelephone since the 1940s and has been rapidly developed so far. Especially Japan, already in coal