Study On Intelligent Tire Detection Device Based On CCD

In recent years, with rapid development of automotive electronic technology, intelligent tire technology has been great concerned, it become an important direction of study. Their contribution increasing vehicle efficiency, energy conservation, will ensure stability and enhance comfort and traffic safety significantly. In this paper, by research of the foreign results, we design a new intelligent tire system that can direct "perception" the interaction between tire and ground. So deformation of tire can be detected.In this paper, the following several aspects of the work have been completed:1,Analysis of the tire and ground contacts deformation. Including the structure of thetire itself, the flexibility of the tire, including the radial (vertical) flexible, lateral(horizontal) flexible and the tangential (the direction of the circle) flexible features.2,Analysis of the image sensor and chose CCD sensor for the system, analysis of thesensor accuracy, and developing a method to compensation lens distortion.3,Analysis of the structure of the video signal and its processing theory, developing amethod can measure tire elastic deformation.4,Developing video signal processing methods base on FPGA, including bright spotcoordinate extraction program, tire speed measurement program base on frequencydetect. Video signal contour extraction5,Using Labview to design of the data processing program, error compensationprogram, tires deformation extraction procedures program.