Underground pipeline locating method and device

Abstract

The invention relates to a locating technology, and aims at providing an underground pipeline locating method and a device. The underground pipeline locating method comprises: setting a burial position of an electronic tag firstly; and then obtaining longitude and latitude coordinates of the electronic tag through a detector and transmitting the longitude and latitude coordinates of the electronic tag to a background computer management system to set up electronic tag information, and forming a pipeline geographic information system (GIS) on an electronic map of the background computer management system along with engineering information; during pipeline maintenance and locating in later period, firstly using global position system (GPS) to locate roughly according to the longitude and latitude coordinates of the electronic tag in the GIS, and then using the detector to locate accurately and amending burial depth. The underground pipeline locating method and the device are capable of intuitively and accurately displaying information of a geographic position of the underground pipeline, pipeline trend, pipeline key point information and pipeline ambient condition and the like through a hand-held terminal and a GIS map, and therefore working efficiency is greatly improved.

Description

technical field [0001] The invention relates to positioning technology, in particular to a positioning method for underground pipelines and a positioning device using the method. Background technique [0002] Underground pipelines are the lifelines of cities. Underground pipelines for public utilities such as water, oil, gas, telecommunications, and cables are laid in a criss-cross pattern under the surface of the ground, resulting in intricate underground pipeline networks. In urban construction, it is often necessary to maintain or renovate old pipelines, or lay a new pipeline or excavate a new building, etc., which requires re-detection of the original underground pipelines. less risk of damage. In the past, the information on these underground pipelines was usually recorded and represented by as-built drawings and pipeline attribute cards, tables, etc., but this manual and paper-based management mode has been far behind the changes of the times. The information itself ...

AI Technical Summary

Problems solved by technology

[0004] 1. The radio frequency signal for transmitting I) code and pipeline information is weak, and the action distance is short, so it is not suitable for application on deep underground pipelines

[0005] 2. The RF chip needs to be customized by a special factory, and the cost is expensive

[0006] 3. The structure of the radio frequency identification module is complex and the manufacturing cost is high

[0007] 4. The pipeline information is not actually measured, and it is easy to cause actual errors with the map

[0008] 5. High risk of failure

Once the radio frequency chip fails, the information of the pipeline will be completely lost, so that it can no longer be re-detected in a non-digging way

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