Design Of Plane Collision Data Analysis System Based On Electric Suspension Technology

Collision is a common phenomenon in our lives and affects all aspects of human society.The study of collision helps us to better grasp this scientific phenomenon and for the benefit of mankind.Air cushion guide rails and photoelectric doors are the main instruments in the laboratory to study the collision rules,but the dense air holes on the surface of the air cushion guide rails are easily blocked during use,causing friction and even sliding of the slider and the guide rail,resulting in inaccurate experimental phenomena.In addition,the air-cushion guide rail can only be used for the positive collision test of two objects in one dimension,and it is not general.In this paper,electric suspension technology is used to eliminate the friction of the collision slider during the movement.At the same time,a speed measurement method is designed using photoelectric technology to ensure the stable suspension of the slider during the collision and real-time speed measurement.In addition,this system is a two-dimensional plane collision system,It can realize multi-angle free collision of multiple objects.The main research work of this article is as follows:First,the research background and significance of the collision system are discussed,and the importance of collision to our daily life is introduced,as well as the development status of velocity measurement technology and magnetic levitation technology at home and abroad.After that,the theoretical basis of the system is introduced,including the overall structure and composition of the system,as well as the speed measurement principle and speed measurement method of the speed measurement system,and the magnetic field distribution of the solenoid is theoretically analyzed,and the system magnetic field model is established accordingly.After analyzing the stability of the magnetic field model,it was found that the system was unstable.Subsequently,a feedback link was introduced and a PID controller was designed.The combination of trial and error and Simulink simulation was used to determine the optimal PID parameter value.After verification,the PID controller has better control effect.Then,this article introduces the implementation process of the system,including the hardware part and the software part.The hardware part first introduces the circuit structure of the system main control MCU.The system main control circuit is composed of STM32F103 and its peripheral circuits.After that,the signal acquisition circuit of the speed measurement system,the wireless transmission circuit,the power drive and amplification circuit of the magnetic suspension system,the electromagnetic ejection circuit,etc.are introduced.The software part mainly introduces the working process and program flow of the magnetic suspension controller to control the stable suspension of the collision slider.A confidence interval filtering algorithm is designed for the speed measurement system,and the corresponding speed measurement algorithm is designed by using the displacement relationship of the slider motion at different times in the process.At the same time,the speed measurement system was tested.The experimental results show that when the sampling frequency of the single-chip microcomputer is fixed,according to the approximate range of the speed of the measured object,selecting the appropriate speed measurement grid can accurately measure the movement speed of the object.