| 摘要 |
An apparatus for determining the position and alignment of wheels, including targets (130) for attachment to the wheels (112-115), a pair of optical sensing means such as television cameras (122, 124) for viewing the targets, an electronic processing means connected to the optical sensing means for processing data relating to images of the targets to determine position and alignment information, and a display means for displaying the position and alignment information. The optical sensing means view a target and form an image. Electronic signals corresponding to each of the images are transferre d to the electronic processing means which correlates the image signals of eac h of the targets with the true shape of each target. The processing means relates the geometric characteristics and positional interrelationships of certain known elements of the target with corresponding elements in the view ed images and calculates the position and alignment of the wheels to which the targets are attached.
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