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分析了矿井局部通风设备系统故障单元的组成,建立了面向粗糙集理论的矿井局部通风设备故障决策信息系统。利用可辨识矩阵和区分函数对故障决策信息系统进行属性约简,获得了属性最少决策表。根据决策规则的相容性得到了矿井局部通风设备系统故障诊断规则,为矿井局部通风设备系统的故障诊断提供了依据。
The composition of fault units in mine local ventilation system was analyzed and a fault decision information system for local ventilation of mine was established based on rough set theory. The discernibility matrix and distinguishing function are used to reduce the attribute of fault decision information system, and the least attribute decision table is obtained. According to the compatibility of decision rules, the fault diagnosis rules of mine local ventilation system are obtained, which provides the basis for fault diagnosis of mine ventilation system.