SOLUTION FOR IMPROVING THE STABILITY OF SHIP MOUNT PTZ CAMERAS BASED ON GYROSCOPIC ACTIVE SELF-BALANCE PLATFORM

Abstract

A sliding control method that takes into account mechanical friction compensation is proposed to improve the self-stabilization of the camera platform with long-range target monitoring requirements and high-speed movement of the platform. This method can be applied to long-range camera platforms on sea ships to observe sea surface targets. The ships platform is subjected to vibration from the hull which causes instability and damage the tracking accuracy and image quality when operating reduces camera shake under the action of the hull improves the quality of self-stabilization and video images. The slider control algorithm uses exponential access rules which allows the system to quickly monitor control signals with good dynamic response time, the results show that the system has high positioning accuracy and good performance and can be able to meet the practical design requirements. Simulation results and experiments demonstrate that, compared with the classical PID control methods, sliding control method can eliminate effectively “climbing” and “flat-top” phenomenons due to friction.