Research On Galvanometer Control Technology Base On Variable Universe Fuzzy-PID

In recent years,aerial camera has been widely used in military and civilian fields that is an important means of obtaining information on the ground.In order to achieve a large storage width imaging,aerial camera is often used to put a single lens to sweep along the side of the imaging modalities.When shooting,image motion produces in both directions,so that the captured image is not clear.To solve this problem,both pendulum sweep and flight direction adopt to galvanometers to compensate image motion.Based on the original one-dimensional galvanometer,the second direction is increased to compensate for flying direction of image motion compensation.Solved shorten the exposure time compensation method,this method not only increases the exposure time,but also extends the camera ambient illumination range.Firstly,we study the composition of the galvanometer,working principle and the principle applied to image motion compensation.In this paper,we proposed for overall flying direction image motion compensation system design program and choose the core elements.Secondly,according to the direction of flight performance,this direction control system is designed.When the forward scanning,the system is speed track system.When returning scanning,the system is position track system.And three loop controllers are adopted.Thirdly,since classical control algorithms cannot adapt to parameter change and model uncertainty.This paper studies on the fuzzy controller not depending on the exact model.When the fuzzy rules is determined and is fixed,the continuous error tends to zero,the fuzzy division is not reasonable.Therefore,the variable universe fuzzy control algorithm tunes the position loop PID parameters.Control accuracy not only depends on the parameters of the controller,but also depends on the performance of its hardware and software systems.According to the constituent elements galvanometer parameters and performance indicators,the direction of the flight control system hardware and software design.Finally,the Matlab simulation and hardware platform experiments verify galvanometer flight direction control system performance.The results shows variable universe fuzzy PID algorithm can improve galvanometer control system dynamic response.