Control System Of Reciprocating Car Washing Machine

The reciprocating car washing machine control system is mainly divided into two categories, one is PLC technology, and the other is single-chip technology. A misunderstanding that needs to be corrected is that the single-chip microcomputer is a cpu and the PLC does not have a CPU. This statement is wrong. The PLC has its own CPU module. PLC relies on current sensing technology, with photoelectric sensor switches, the pressure of the brush is converted into electrical signals and transmitted to the CPU to feel the shape of the car body. The single-chip technology also relies on photoelectric sensors, which convert the recognized obstacle information into electrical signals and transmit them to the CPU. The PLC control system has the advantages of easy maintenance, fast development speed in the early stage, and strong anti-interference ability; the advantages of the single-chip microcomputer are small space occupation and low price. The world's high-end car washing machines all adopt PLC or single-chip control systems.