In conventional elevator controls, high accurate sensors of position and speed are used for this purpose. However these additional sensors increase the cost of system and decrease the reliability.
在传统的电梯曳引系统中，通常采用高精度的位置和速度传感器来检测转子的位置和速度信息，增加了系统的成本，降低了系统的可靠性。
Now commonly used by a single sensor on the elevator control system to detect, And its spectrum analysis, Failure to achieve the purpose of diagnosis.
目前普遍采用单一传感器对提升机控制系统进行检测，并对其频谱进行分析，达到对故障诊断的目的。
Now commonly used by a single sensor on the elevator control system to detect, And its spectrum analysis, Failure to achieve the purpose of diagnosis.
目前普遍采用单一传感器对提升机控制系统进行检测，并对其频谱进行分析，达到对故障诊断的目的。
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