Study On The Servo Control System Of Telescope Based On The Single Neuron

The large eletro-optic telescope is a comprehensive system with light, machineand electricity. It is playing an increasingly important role in research of thedistribution of galaxies, exploring the universe and so on. Turntable servo controlsystem is an important part of it, the performance of servo system has a directinfluence on the performance of the telescope, and especially the precision willdirectly influence the detecting precision of the telescope. With the progress of thetimes and the development of science and technology, the photoelectric telescopeputs forward higher requirements on the turntable servo control system. In order tosatisfy the requirements of integration and modularization of servo control systemwhen detecting spacial target and researching astronomy, a servo controller of largetelescope was designed based on Actel Fusion, which has realized control functionof turntable servo control system adopting the single neuron PID control algorithm.Firstly, this paper studies the servo control algorithm. PID control algorithm issimple and wide application, but difficult to adjust control parameters. A singleneuron as the basic unit of the neural network, which has self-study andself-adaptive ability and can online real-time setting parameters, therefore the papercombines the advantages of PID control algorithm and single neurons, introducingthe single neuron adaptive PID control algorithm and proceeding the simulationresearch using MATLAB. The results show that the single neuron PID controlalgorithm can obtain PID control parameters quickly and get satisfactory control effect.Secondly, the paper introduces the composition of telescope turntable servocontrol system, and emphatically introduces the design scheme of servo controller.The whole system is divided into specific function module to design by usingVerilog HDL. The design method and the implementation steps of encoder signalprocessing, PID control algorithm PWM waveform generation, the PWM generation,LCD display and communication with PC are introduced in detail.Finally, the single neuron PID control algorithm is realized in servo controller.The experimental results show that the single neuron PID control algorithm is betterthan the tradition PID control algorithm, which has stronger adaptability and higherprecision meeting the function requirements of telescope turntable servo controlsystem.In this paper, the telescope servo controller based on the single neuron hascharacteristics such as simple, high integration, good reliability and easy to upgrade,and the single neuron PID control algorithm is realized in hardware mode, thecontrol performance of the conventional PID algorithm is improved, and thereal-time control is achieved, which creates the conditions to realize intelligentcontrol algorithm in hardware mode for servo control field.