The Research And Design Of Remote Parameter Control System Based On DSP

To do earthquake or road simulation test, the vibration table simulation test is an important method. As the development of high tech and industry system, the offline control method which the traditional vibration table simulation test system used has encountered a series of challenging problems. The problems summarized as below: it is a nonlinear and time-variation system with uncertainties, and it is more complex. So the high performance of this control system is required. At present, iteration control is realized using remote parameter control technology in the vibration table simulation test. But the fixed limitation exits in the control method with complicated calculation, low precision and bad Real-time. Based on the study of remote parameter control technology, an adaptive filter inverse control method using LMS algorithm is proprsed in this paper, and can solve the problem which exits in traditional control method. The weighting coefficients of the adaptive filter can be constantly updated through iterative using adaptive iterative program. It can enhance the control precision and stability, the adaptability and real-time performance could be improved. So it can be widely applied to practice.At first, this article discusses the theory and basic characteristic of remote parameter control technology. And we have studied the LMS control algorithm, the basic method of System Identification, and stability of the system. Based on the study of system function requirement, the general design scheme of the single channel adaptive control system based is established. We have got excellent simulation effect by the MATLAB software for the single channel channel control system. The correctness of the algorithm and the rationality of the control system have been verified. We also improve the real-time performance of the control system, implement adaptive control on line.Moreover, based on the single channel control system, we design the dual channel control system. There is a satisfactory effect also.The hardware platform we selected is the DSP. With advantages of low cost, low power consumption, high-speed and good real-time character etc., TMS320F2812 CMOS chip is selected as the CPU of this system.Meanwhile under the CCS2000 development environment, we use C language to compile the DSP's software program. The result is good by making a test on the both system with single and dual channel.After all parts' design of the system, we debugged it. From the debugging result, we can see that this system have reliable performance, high control precision, convenient operation and also well control effect.