Pavement Deflection audience laser detection method and detection system

The present invention provides a pavement Deflection audience laser detection system and detection method, wherein the method comprises: a fan laser beam emitted toward the road surface to be measured, is formed by laser marking point loading test pavement; to a CCD image pickup device providing an image acquisition control signal, which controls a laser marking image acquisition, including two image acquisition: loading both cases normal load and unload standard load on the loading point, to obtain two laser marking collecting images; the laser marking said image CCD image acquisition device is transmitted to a computer of the image information processing system through a wired or wireless manner; the computer image information processing system differential interferogram image information processing, image data deflection basin. Detection systems and detection methods of the present invention provides non-contact, full pavement deflection detecting embodiment, and branch-point far enough pitch, the choice of the reference measurement is more reasonable.