The Technology Research On Hanging Platform Based On Machine Vision

In recent years,with the rapid development of warehousing and logistics industry and the proposal of Made in China 2025,China has a great demand for automated and intelligent carrier platform.Using machine vision technology to control the delivery platform is an efficient,fast,accurate and very promising solution.Firstly,this paper investigates the status of the machine vision technology and the carrier platform at home and abroad,and finds that there is no automatic solution to the problem of the loading of the suspended objects.Aiming at this problem,a hanging platform based on machine vision technology is designed in this paper.The main purpose of the platform is to load the load to a place similar to the ceiling.In this paper,binocular stereo vision technology is applied to detect the location of load points.The calibration of binocular camera is completed by MATLAB software programming based on the principle of the Zhang's calibration method.Then we study the Surf stereo matching algorithm,which is an accelerated and improved version of scale invariant feature transform algorithm(Sift).According to the actual needs,this paper conplete the matching of the feature points with the method of a new matching algorithm which is improved from Surf stereo matching algorithm by Huo Fuyuan transform.By using the matching result and the mathematical model of the coordinate transformation,the location of the target point is obtained.The hardware part uses multi axis motion platform.The MCU controller uses the pulse wave to control the motion of the motor by using the binocular vision technology to control the motion of the motor,so as to move the actuator to the specified position.At the same time,the feedback information of displacement sensor is used to determine whether the load is transported to the designated location.System control software is designed based on Keil-MDK software platform.The experimental results show that the target location of the binocular vision detection has a good precision,and the designed system can carry the load to the specified position by the expected design purpose.