With the continuous development of microprocessor technology. The chip used in system design. It is getting smaller, more efficient and consumes less electricity. Processing is getting faster and faster. When designing this system, I selected the control system chip based on the following considerations.The first is the ability to work stably. The normal and stable operation of a system is of paramount importance. Some chip microprocessors have very poor anti-interference properties and are therefore not suitable for this system. The most mature chip is the STC89C52 chip, which is selected by this system.