基于硬件自冗余的称重设备传感器故障检测方法

Fault detection method for weighing equipment sensor based on hardware redundancy

传统的称重设备采用的是模拟称重传感器,不具有故障自检测功能。有研究人员研究了针对称重设备传感器故障检测的方法,但都是从称重传感器的输出进行检测,忽略了产生故障的原因,导致了检测过程复杂、运算量大。为此文章提出了基于硬件自冗余的称重设备传感器故障检测方法,利用称重传感器自身具有的硬件冗余现象对称重传感器的故障进行检测。实验表明,当称重传感器由于自身质量问题而发生故障时,此方法可以有效检测出称重传感器发生了故障。

The traditional weighing equipment uses analog weighing sensor,the sensor does not have the function of fault self-detection. Some researchers have studied the method of fault detection for weighing equipment,however,all of them are detected fault from the output of the weighing sensor,ignoring the cause of the failure,so those methods have complex detection process and huge amount of computation. So,this paper presents a method of fault detection based on hardware redundancy,detecting weighing sensor's fault based on the weighing sensor itself has hardware redundancy. Experimental results show that this method can effectively detect the fault of the weighing sensor when the fault due to their own quality problems.