本课题的研究目标是设计以中、小型制冷装置为服务对象的通用电脑控制器。本文介绍了该电脑控制器的软件设计框图,输入输出接口线路原理;中、小型制冷装置电脑控制系统;节能型自动除霜的软硬件设计。该电脑控制器具有体积小,价格低,控制功能强,稳定可靠等优点。适合中、小型制冷装置生产过程的自动检测和实时控制,是对制冷装置自动控制微机应用产品化的有益尝试。 The research goal of this topic is to design a general-purpose computer controller that serves medium and small-scale refrigeration devices. This paper introduces the software design of the computer controller block diagram, input and output interface circuit principle; small and medium refrigeration computer control system; energy-saving automatic defrost software and hardware design. The computer controller has the advantages of small size, low price, strong control function, stable and reliable. Suitable for medium and small refrigeration device production process of automatic detection and real-time control, is the refrigeration device automatic control microcomputer product useful attempt.