中文摘要：

针对传统通风控制系统能耗高自动化程度低等缺点，设计一套自动化、智能化的控制系统。该系统以STC12C5620AD为控制核心，集成了风速调节、环境温度测量、电机驱动与控制等电路，并设计了专用段式液晶和键盘。系统具有手动和自动两种工作模式，每种模式下均可自由设定待机风速、工作风速和靠近风速的大小，操作方便、使用灵活。软硬件抗干扰设计与优化保证了系统在强电磁环境下的可靠运行。经测试。系统控制精度较高，运行稳定。

英文摘要：

In order to eliminate the defects of high energy consumption and low automation level of the traditional ventilation control system, an automatic and intelligent control system was designed. The STC12C5620AD is taken as, the core controller of the system. The circuits of wind speed adjustment, environmental temperature measurement, motor drive and control are integrated in the system. The dedicated segment liquid crystal display and keyboard were designed. The system has the manual and automatic operating modes. The standby wind speed, operating wind speed and nearby wind speed can be set freely in both operating modes. The system has the characteristics of flexible operation and use. The anti-interference design and optimization of hardware and software can ensure the reliable operation in the strong electromagnetic environment. The test results indicate the system has high control precision and stable operation.