Design And Studying Of The Tide Simulation System Of River Mouth

Utilize the physical model experimental study rivers movement of water movement and natural phenomena, have already become the waterway regulation, river dredging , and question of polluting spreading , controlling in the river mouth etc. This subject combines the Shenzhen River physics model test that the Yangtse River Scientific Research Institute sets up, Design a kind of tide simulation system Aim at that the improvement system operates dependability and experimental precision.This text has explained the state of development of the physical model of water movement at first. Introduce the setting-up of the physical model of Shenzhen River and the method of making the fixed bed tide model test on this basis. The system adopted multi-function experimental water basin shed to overflow implement tide simulation. Finish the mechanical system of the tail-gate designing; guarantee that the mechanism are made simply, assemble flexibly, the work is reliable can meet the needs of simulated test .The control system adopts the distributed system structure, observe and control the equipment and implement " differentiated supervise, centralized control " to the model live. And join through the on-the-spot bus, form a network structure, finish the exchange of the central computer and field equipment data. Realize to measure field water level, flux signal concentrate, and deal it on online. And adopt digitized PID control technology, control to the water level of the model real-time; Study the intellectual control technology application in the control system, improve the dynamic characteristic of the control system. The application software of the simulation system is developed under Visual C ++ platform, adopt multi thread programming technology to be designed, in order to reduce the time delay of the software, improve systematic real-time character , and has inherited the friendly mutual interface of figure of Windows.Up until now, tide simulation system had succeed passed the fixed bed tide simulated test of ShenZhen river mouth already, have got the result of design expected. Finally, this text has referred to some weak points designed systematically in summarized and looked forward to one chaptering, hope that the technical staff related to relevant work gives inspiration and consults to future.