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比选器在民航空管地空通信系统中发挥着重要作用,但当前在用系统中普遍存在不同型号比选器混用的现象。不同型号比选器互为主备使用时,由于缺少自动切换装置,当一个比选器故障时,另一个比选器如果不能及时快速地替代工作,将会对空中交通管制造成严重后果。本文介绍了不同型号比选器互为主备使用时,手动快速切换的一种设计思路和实现方法,并在现实工作中予以应用,取得了良好的使用效果。
The comparison device plays an important role in air traffic control system of civil aviation ATC. However, there is a widespread phenomenon that different model selectors are commonly used in the system. When different models are used alternately, the lack of an automatic switching device will result in serious consequences for air traffic control if one of the alternatives fails and the alternative can not immediately replace the work in time. This paper introduces a design idea and implementation method of manual quick switch when different model selectors are mutually active and standby, and applies it in practical work, which has achieved good results.