Optical point-of-the-road devices, optical point-of-the-road methods, and optical point-of-the-road systems

Abstract

The light-reflecting device refers to the optical path-reflecting device, the optical path-reflecting method, and the optical path-reflecting system. This optical path-reflecting system includes the first optical path-reflecting device (201) and the second optical path-reflecting device (202). The first optical transceiver (203) in the first optical path pointing device (201) emits the first signal light to the second optical path pointing device (202), and receives the first signal light reflected by the second prism (207) in the second optical path pointing device (202). The first position sensor (204) in the first optical pathfinder (201) determines the first alignment angle of the first optical pathfinder (201) based on information about the position at which the signal light reflected by the second prism (207) reaches the first position sensor (204), and sends the first alignment angle to the first adjustment module (205). The first adjustment module (205) adjusts the first alignment angle, where the first alignment angle is adjusted to meet the first accuracy threshold. It can be known that, through the signal light reflected by the prism (207), the signal optical path between the second optical path (201) and the second optical path device (202) is adjusted, to help improve the accuracy of the tracking system.