论文部分内容阅读
一、引言随着科学技术不断发展,工业自动控制仪表也经历了基地式,单元组合式(Ⅰ、Ⅱ、Ⅲ型)和组装式几个发展阶段。但由于现代企业的生产能力和规模不断扩大,常规仪表在控制水平和复杂程度、在监视和操作以及生产过程协调和管理等方面都暴露出了种种局限性。由于电子计算机在运算能力、逻辑判
I. INTRODUCTION With the continuous development of science and technology, industrial automatic control instruments have undergone several stages of development including base type, unit type (type I, type II, type III) and assembly type. However, due to the continuous expansion of the production capacity and scale of modern enterprises, conventional instruments have shown various limitations in terms of level of control and complexity, monitoring and operation as well as coordination and management of production processes. As the computer in computing power, logical decision