工业过程控制系统的实施问题是涉及到系统的理论设计演变为工程设计的问题。理论系统与工程系统的一个重要差别在于信号的匹配,理论系统信号是在一个没有上下界的范围运行,而工程系统的信号往往限定在某一个范围。在这个技术讲座中,我们着重讨论: (1) 信号汇合点(包括控制输入汇合点和一般汇合点)的信号匹配; (2) 检测信号的信号匹配; The implementation of industrial process control system is related to the systematic theoretical design evolved into engineering design issues. An important difference between a theoretical system and an engineering system is the signal matching. The theoretical system signal operates in a range without upper and lower bounds, and the signal of the engineering system is often limited to a certain range. In this technical talk, we focus on: (1) signal matching point (including the control input convergence point and the general convergence point) signal matching; (2) signal detection signal matching;