A Wireless Detection System Of The Rudder Attitude

In this paper,a wireless transmission control system based on BeiDou satellite navigation system and gyroscope is designed for attitude adjustment of guided projectile.The real-time detection system is based on the data acquisition technology,wireless power transmission technology and RF communication technology.It consists of data acquisition and transmission module,data reception control module,and wireless power transmission.The data acquisition and transmission module is composed of BeiDou positioning and navigation module,gyroscope attitude acquisition module and radio frequency transmission module.The BeiDou satellite navigation system and gyroscope detect the real-time angular velocity and acceleration of the rudder wing and send the data to the receiving end through the radio frequency module.The datareceiving and control module is composed of a radio frequency receiving module,a data storage module,an ultrasonic motor driving module and a computer display terminal.It stores and monitors the gesture information for driving control of the ultrasonic motor.The wireless power transmission module,which includes the power wireless transmitting and receiving module,continuously supply the data transmission control system with power.In order to increase the output power of the wireless power transmission system,a negative resistance is added into the circuit to increase the primary current by reducing the resistance of the primary side of the transformer so as to increase the voltage on the secondary side of the transformer and further increase the power of the wireless power transmission.Based on this theory,a test platform for wireless transmission of resonant coupling power with negative resistance is built,and the experimental results show that the proposed method is feasible.Finally,the system designed is validated on the ground load simulation test platform.The experiments include the acquisition of attitude data,the tests of wireless transmission and the control of ultrasonic motor.The results prove the feasibility of the scheme proposed in this paper.