Ranging method and system for tracking laser point

Abstract

The invention relates to a ranging method and a ranging system for tracking a laser point. The system comprises an image acquisition unit, a laser ranging unit, a high-precision cradle head, a transparent debugging plate, a signal processing unit, a central management platform and a remote control unit. The placement position of the laser ranging unit on the high-precision cradle head is adjustedthrough the transparent debugging plate, so that laser rays are parallel to the rays of an image acquisition center, meanwhile, the laser ranging unit is fixed, and the distance between the laser rays and the rays of the image acquisition center is determined. The accurate position of the laser point can be tracked, positioned and displayed according to the ranging data, and the laser emitting direction is adjusted by adjusting the rotating direction of the high-precision cradle head, so that the laser point is accurately dotted on a target point, ranging errors when the position of the laserpoint cannot be viewed clearly or viewed due to the factors such as long distance or strong rays and the like are reduced, and accuracy and reliability of the laser ranging data are realized.

Description

technical field [0001] The invention relates to a laser ranging method and system, in particular to a ranging method and system for tracking laser points. It is based on dual-light parallel technology, and realizes accurate measurement of distance by tracking and positioning the ranging laser point. Background technique [0002] We know that distance measurement can be achieved by using a laser as a light source. Existing distance measuring methods and systems mainly use a laser emitting device to emit a very thin beam of laser light to the measured target, and the photoelectric element receives the reflected laser light from the measured target, and the timing device measures the time from emission to reception of the laser light, and then Calculate the distance from the laser distance measuring device to the measured target. If the laser is emitted continuously, the measurement range can reach about 40 kilometers, and the operation can be carried out day and night; if th...

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Problems solved by technology

[0003] However, the accuracy of laser ranging is also greatly reduced due to the fact that the laser point hitting the measured target cannot be seen or clearly seen during daytime or long-distance measurement.

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