Control System Based On Virtual Instrument

The deep and systemic research on the application of Virtual Instruments(VI) in control domain is still lack today.In this dissertation,the control system based on VI was researched and summarized in system., the realization and application of software controller in Labview was particularly analyzed.and a simple electromotor control system was build.During the process the following tasks were accomplished:1. Summarizing the application of VI and Labview in control domain,Analying the system structure, system bus choise and the timing of control loop.2. Realizing neural network algorithm by varied approaches in Labview and comparing these approaches.3. Improving the compute approach of Jacobian matrix which is the most important part of LMBP algorithm.4. Executing simulation of neural network system recognition(including online recognition) in Labview.5. Realizing incremental PID, internal model and neural-PID controller,and executing simulated application of these controllers in Labview.6. Analying the influence of output transform to NNC control algorithm in neural-PID control.7. Accomplishing the electromotor control system based on VI,solving some important problems such as measurement of rotate speed,application of software controller.