Three-dimensional image surveying and mapping acquisition system

Abstract

The invention discloses a three-dimensional image surveying and mapping acquisition system, and relates to the technical field of surveying and mapping. The system comprises a surveying and mapping module used for surveying and mapping an urban sewage pipeline, and a correction module used for correcting the flight attitude and track of an unmanned aerial vehicle; the surveying and mapping module is carried on the unmanned aerial vehicle and enters the sewage pipeline to conduct surveying and mapping on the path and the inner circumferential surface of the sewage pipeline; after being corrected by the correction module, the unmanned aerial vehicle flies along the track of the median of the area above the sewage level in the radial section of the sewage pipeline during flight surveying and mapping; the surveying and mapping position of the surveying and mapping module is located in front of the flight position.

Description

technical field [0001] The invention belongs to the technical field of surveying and mapping, in particular to a three-dimensional image surveying and mapping acquisition system. Background technique [0002] With the continuous acceleration of the urbanization process, the development of the city is also constantly accelerating, and the corresponding underground pipelines are also being continuously updated and constructed. The types and forms of underground pipelines are also constantly changing. Combined with the current urban planning and construction It can be known that urban underground pipelines play a vital role in the survival and development of cities. The actual location and type of pipelines can be used as prior information for engineering construction, so as to ensure the normal progress of engineering projects. In such a situation Under such circumstances, it is necessary to survey and map urban underground pipelines, especially for sewage pipes and rainwater ...

AI Technical Summary

Problems solved by technology

[0003] When surveying and mapping pipelines, the application publication number CN111692456A discloses a SLAM system and method for pipeline detection, which discloses a method of using pipeline robots for walking surveying and mapping, which is based on the distance given by laser radar and mileage wheel Three-dimensional surveying and mapping of pipelines with information, and this surveying and mapping method is only applicable to the surveying and mapping of pipelines without sewage, and the road surface of sewage pipelines is slippery, and the distance information given by the mileage wheel is not necessarily accurate, which makes the surveying and mapping appear;

[0004] In addition, such as measuring small boats, which are easily affected by the water flow and cause the hull to swing, making it more difficult to fit the pipeline path

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