The Research Of IOT Image Intelligent Detection System Of Vehicle Parameters

In order to deal with the increasingly serious private-refitted and overloaded problem of vehicle,improve the inspection efficiency and intelligent management level of the vehicle administration and road transportation departments,an automatic intelligent detection system was studied based on machine vision technology in this paper.The detection system is able to detect the vehicle parameters quickly and accurately,in which the whole detection process is dynamic,real-time,no parking,and no contacting.The image intelligent detection system which is based on the concept of internet of things(IOT)consists of image acquisition unit,image processing unit,parameters calculation unit,parameters storage unit,and weighing system.The functions of the system include length measurement,width measurement,height measurement,color recognition,and weight measurement.At the same time the system can achieve management,storage,transmission of all the above detection information.The main research work is as follows:1?Study on measuring and controlling software of vehicle parametersMachine vision theory and the actual detecting task are combined by measuring and controlling software module classifying and program flow.The software is able to measure the vehicle parameters and offer display interface.The main functions of display interface include:system calibration,camera adjustment,parameters input,results show and image storage,etc.2?Study on connection between the detection system and weighing systemThe weighing system is connected with the measurement and control software using RS232 serial interfaces to achieve weight data real-time transmission.The detection results of outer contour size,color,weight,testing time and other information can be recorded and saved together in the computer for inquiries in future.3?Study on the connection between the detection system and the PDA systemBased on the concept of the IOT,the PDA system is combined with the vehicle parameters detection system.The detection system can upload the measurement results to the PDA system and the vehicle information database.At the same time,the PDA system can send manipulation instructions to the detection system through wireless network.The operator could accomplish the long-range manipulation of the detection system by the PDA,and compare the detection results with original data.4?Dynamic digital measure of the vehicle outer contour sizeAfter obtaining the image of the dynamic vehicle,the image should be gray-scale processed,subtraction calculated,wavelet transform denoised,feature extracted,etc,to get the end face position of vehicle for calculating length width height.At last,the measuring and controlling software will get the vehicle length width height parameter with the help of camera ration information and measurement formula.