计算机远程I/O控制技术在大型水工模型试验中应用研究

Research on the application of the computer long-range I/O control technology in large-scale hydraulic model tests

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RS_4

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.