Abstract
Abstract Uncertainty latency of the remote closed-loop control system in information transmission through Internet, Analysis delays how to influence closed-loop control system. Based on predictive control method of neural network, research the application of closed-loop control system control methods under a random network delay. Simulation results show that: This method is able to reflect and predict the delay characteristics of between network path represented by the measured data, and can be replace actual network to research in application based on Internet closed-loop control system; the methods used is fast and accurate, it can be used for online learning network model and predict the network delay value, provides a new way of remote closed-loop control based on Internet.
Highlights
INTRODUCTIONThe remote control system is an integration of control technology and network communication technology, it applications in many fields more and more common as ocean development, space station maintenance, remote surgery, virtual reality in recent years, and stable, fast, accurate is the highest target remote control system pursue[1]
The remote control system is an integration of control technology and network communication technology, it applications in many fields more and more common as ocean development, space station maintenance, remote surgery, virtual reality in recent years, and stable, fast, accurate is the highest target remote control system pursue[1].Closed-loop controller is to control by the disturbances of feedback, which is by comparative behavior of the system output and the deviation between expectations to make the appropriate control action to eliminate the bias in order to achieve the desired system performance
Delay value influence by the inherent properties of control information transmission network such as the network structure, the amount of data transmission, the transmission timing and transmission agreements and other factors[3], the size of the delay values are reasonable from a few hours to several days[4], the approximate value will bring a big problem of the stability and dynamic quality of the remote control system[5], analysis and research the delay problems of the remote control system is a long-term in this area
Summary
The remote control system is an integration of control technology and network communication technology, it applications in many fields more and more common as ocean development, space station maintenance, remote surgery, virtual reality in recent years, and stable, fast, accurate is the highest target remote control system pursue[1]. Closed-loop controller is to control by the disturbances of feedback, which is by comparative behavior of the system output and the deviation between expectations to make the appropriate control action to eliminate the bias in order to achieve the desired system performance. The delay phenomenon exist in the field of remote control is a common problem exists in the remote closed-loop control applications. Delay does exist in the before control channel of system and in feedback channel. The delay in before control channel Makes the control signal unable to act on the controlled object, the delay in the feedback channel makes the controller can not found the change of controlled object immediately[2]. Delay value influence by the inherent properties of control information transmission network such as the network structure, the amount of data transmission, the transmission timing and transmission agreements and other factors[3], the size of the delay values are reasonable from a few hours to several days[4], the approximate value will bring a big problem of the stability and dynamic quality of the remote control system[5], analysis and research the delay problems of the remote control system is a long-term in this area
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