Distance measurement method and system

Abstract

The invention discloses a distance measurement method and system. The system comprises a first fixed marker post which is disposed at a starting point and provided with a first beacon and a second beacon. The first fixed marker post is perpendicular to the ground plane. The first beacon and the second beacon are located at different height positions. The system further comprises a second marker post which is arranged at a target point and provided with information sources. The second marker post is kept perpendicular to the ground plane. The first beacon and the second beacon are in wireless communication with the information sources respectively, so as to acquire the signal transmission time differences between the first beacon and the information source and between the second beacon andthe information source. Measurement of the distance between the first beacon and the information source and measurement of the distance between the second beacon and the information source are acquired, and finally the distance between the starting point and the target point is acquired. According to the invention, distance measurement is realized by utilizing the combination of a plurality of information sources and beacons; the measurement of the distance between the starting point and the target point is realized; and the influence of inconsistent altitudes of two positions is avoided.

Description

technical field [0001] The invention relates to the technical field of radio distance measurement, in particular to a method and system for realizing distance measurement by combining multiple signal sources and beacons. Background technique [0002] In working scenarios such as map surveying and engineering construction, it often involves the subject of high-precision measurement of the horizontal distance between two coordinate points. In the field environment, due to the occlusion of trees and plants, detection equipment based on lasers, infrared, etc. Most of them rely on the straight-line propagation of light for measurement, which is difficult to use in this situation. There are also distance measurements in some indoor environments. Due to the occlusion of indoor shelves and objects, the range of use of laser and infrared rangefinders is also very limited. Using the ranging method based on pulse radio communication can effectively solve this problem, especially in so...

AI Technical Summary

Problems solved by technology

[0002] In working scenarios such as map surveying and engineering construction, it often involves the subject of high-precision measurement of the horizontal distance between two coordinate points. In the field environment, due to the occlusion of trees and plants, detection equipment based on lasers, infrared, etc. Most of them rely on the straight-line propagation of light for measurement, which is difficult to use in this situation

There are also distance measurements in some indoor environments. Due to the occlusion of indoor shelves and objects, the range of use of laser and infrared rangefinders is also very limited.

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