Most of the monitoring systems for roof bed separation are designed based on RS-485 BUS, which is low in both signal transmission efficiency and reliability.
国内顶板离层计算机测控系统多采用RS - 485总线，传输效率低，可靠性不高。
The main factors effecting of slipping area along the bed rock and roof separation and failure area and the major avenue of damage surrounding rock caused by mining are analyzed in this paper.
分析了影响沿底座滑区和顶板离层破坏区破坏的主要因素及其采动损害传递的主途径。
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