The Research And Implementation On Method Of Synchronous Control Of Elevating Stages

With the rapid development of economy and the improvement of standard living,Viewers also will enhance the pursuit of the culture and arts. This led the country investa large amount of financial fund to the national cultural industries, more kinds ofmodern theater emerged in our domestic big cities. Because of the scale of moderntheater has been a continuously enlarged, also put forward higher requirement for thecorresponding stage control technology. In the modern stage machinery controltechnology, many targets control become a significant feature, so the Multi-MotorSpeed Synchronic Control technology has also become an important technology in thestage control. Devices in the system simultaneously running a direct impact on thenormal operation of the entire system, In extreme cases it will may result inperformance failure and lead to accidents. Elevating stage is one of the most popularunder the stage machinery and equipment, have the effect to quickly change the scenery,to create a special effects and atmosphere, to meet the needs of repertoire directing staffand to change the stage form at any time. Therefore, the study of the synchronizationcontrol between the elevating stages has important practical significance. Recently, thecontrol of the elevating stages in the modern theater is use of a traditional PID controlstrategy and master-slave control mode, this control method is not very satisfactorywhen the system caused by the influence of outside factor and other factors. So, thisessay regarding the control of elevating stages as the research subject, includessynchronic Control of elevating stages of the research and implement, The following arethe main contents:Firstly, take the Beijing National Stadium stage machinery systems engineering asthe background, the essay introduces some control system in the contemporary stagemachinery control system, then an elevating stages control system scheme is designed，and also some safety designs have be done according to design requirements of themodern theater.Secondly, in view of the existing traditional PID synchronous control effect inelevating stages control are not very satisfactory when the system caused by theinfluence of outside factor, a deviation–coupling synchronous control method isproposed, and combined with fuzzy PID controller. A simulation platform according toboth traditional PID Synchronization Control method and fuzzy PID controller based ondeviation–coupling synchronous control method is constructed in MATLAB environment, and using PLC to complete the implementation of the fuzzy PID controlalgorithm in the project. The simulation results and engineering practice shows that thefuzzy PID controller based on deviation–coupling synchronous control method have thebetter synchronous control effect than the method based on traditional PID synchronouscontrol method.Finally, the research work in this essay is concluded, analysis about the problemsof elevating stages synchronous control system, and illustrates the research direction forfuture research.