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随着电子工业的迅速发展,数字式控制系统越来越普遍,怎样在现行的系统中加入可靠的数字控制单元,使原控制回路更简单、更宜操作维修,是大部份现场运行技术人员考虑的核心问题之一。图1为常规仪表控制系统框图,图2为目前一般计算机控制系统框图。从两图比较可知,虽然计算机控制系统比一般常规仪表控制系统便于使用高级算法,但同时又由于其复杂性降低了实用
With the rapid development of the electronics industry, digital control systems are becoming more and more common. How to add reliable digital control units to the existing systems to make the original control circuits simpler and more suitable for operation and maintenance is the result of most field technicians One of the core issues to consider. Figure 1 for the conventional meter control system block diagram, Figure 2 for the current general computer control system block diagram. It can be seen from the comparison between the two figures that although the computer control system is more convenient to use the advanced algorithm than the conventional control system of the conventional instrument, at the same time, due to its complexity, the utility model is reduced in practicality