Laser geometric spacing system

Abstract

The invention discloses a laser geometric distance fixing system. The system comprises a laser, an optical focusing lens, a light receiver, a signal processor, a first detector and a second detector, wherein the optical focusing lens and the light receiver are arranged on an optical axis; the laser is arranged on another optical axis intersecting with the optical axis; the first detector and the second detector are arranged on the light receiver; the light receiver is connected with the signal processor; the signal processor comprises a signal amplifier, a sampler and a single chip microcomputer processor which are connected with each other; the signal processor is connected with the laser. The system judges the distance between an object and the distance fixing system according to the light intensity differences detected by two detectors, which can effectively solve the measurement error caused by atmospheric disturbance and different reflection characteristics of objects.

Description

A Laser Geometric Distance Fixing System technical field The invention relates to a distance-fixing system, in particular to a laser geometric distance-fixing system. Background technique At present, the most widely used laser ranging and ranging technology is to measure the flight time of laser pulses between the range finder and the target. This method relies on ultra-short laser pulses and high-precision timing technology. Because the speed of light is too fast, it is difficult to improve the ranging accuracy of this method at short distances (such as within 100 meters). Another method is to use the collimation of the laser beam to perform geometric ranging and distance determination. Because the collimation of the laser beam is very good, it can still maintain a small spot at a long distance, and the imaging focusing system can converge the long-distance spot into a very small detection area, so in principle, this kind of Geometric ranging and ranging methods have hi...

AI Technical Summary

Problems solved by technology

Because the collimation of the laser beam is very good, it can still maintain a small spot at a long distance, and the imaging focusing system can converge the long-distance spot into a very small detection area, so in principle, this kind of Geometric ranging and ranging methods have high accuracy at short distances, but due to the large difference in the reflection characteristics of objects, and changes in light intensity caused by atmospheric disturbances, the measurement accuracy will decrease

The present invention aims to solve the problem that the accuracy of geometric distance determination decreases due to changes in object reflection characteristics and atmospheric disturbances

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