| 摘要 |
A four-wheel positioning method and a positioning instrument system, which are both applicable to a two-post lifter and a small scissor lifter. The method is applied to four-wheel positioning of a vehicle in case of the presence of either the two-post lifter or the small scissor lifter, conducting a ground test to obtain initial positioning parameters and positioning compensation data of the vehicle, correcting the positioning compensation data after the vehicle is lifted, testing in real-time the positioning parameters in the process of adjusting the vehicle, and displaying and outputting the compensated positioning parameters. The positioning instrument system is composed of wheel clamps (1) mounted on wheels, reflective targets (2) fixed to the wheel clamps (1), a video camera and light source (3), a cross beam (4), a pillar (5), a cross beam lifting mechanism (6), and a lifting and data transmission control panel (7). The system can automatically track the video camera, mounted on the cross beam (4) in a lifting mode, of the lifter while conducting the real-time test and displaying and outputting the positioning parameters, the positioning parameters of the vehicle can be tested on the ground, the errors caused by ground ruggedness can be compensated, the compensation parameters can be corrected when the wheels are in a suspended and free state after being lifted, and the corrected positioning parameters are displayed and output. The system can be moved as a whole and carry out positioning detection on multiple stations. |
