故障空间 meaning in Chinese

defective space

And an intelligent fault detecting system is established . starting from analyzing the possible faults existed ; relations between the fault patterns of the wall - climbing robot and the characteristic signals are established . so the problem of fault detection of the robot is in essence a problem of pattern recognition
主要内容如下：对壁面机器人的可能故障进行分析，总结系统可能的故障类型，并选择体现不同故障类型的特征信号，构建系统的故障空间和故障征兆空间，建立了两者之间的映射关系，并在此基础上制定了故障诊断方案。