【摘要】 分析了现行水工模型试验计算机测控系统的不足 ,介绍了计算机远程I/O控制的原理和技术特点 ,并提出了应用计算机远程I/O控制技术 ,将现行测控系统的模拟通信改为数字通信 ,构建基于RS₄ 85工业控制网络的远程分布式大型水工模型试验测控系统更多还原

【Abstract】 The shortcomings of the present computer survey and control system in hydraulic model tests are firstly analyzed in this article. The principles as well as the characteristics of computer long_range I/O control are then introduced. Finally the ideas of using computer long_rang I/O control technology,changing the simulated communication of present survey and control system into digital communication, and constructing the RS 485 based industrial control net to a large_scale scattered long_range survey and control system of the hydraulic model test are putted forward.更多还原