Development of Non-Contact Intelligent Tires using Image Analysis

提出了一种非接触式轮箍面内应变和面外位移(滚动半径)的实时监测方法。将数字图像相关方法与聚束投影相结合，可以从单台相机拍摄的一幅图像中获得面内和平面外位移。该系统在汽车子午线轮胎上的应用表明，该系统能够高精度地测量滚动半径和面内应变分布。

We proposed a noncontact concurrent monitoring method for measurements of tire in-plane strain and out-of-plane displacement(rolling radius) by embedding a CCD camera on wheel rim. By combining digital image correlation method and spotlight projection, in-plane and out-of-plan displacement can be obtained from one image taken by a single camera. The proposed system was applied to automobile radial tires and it was proved to be able to measure rolling radius and in-plane strain distribution with high accuracy.