Multi-measurement-in-one data acquisition and database building method for engineering construction project

Abstract

The invention discloses a multi-measurement-in-one data acquisition and database building method for an engineering construction project. The method comprises the steps of carrying a three-dimensional laser scanner, a camera and other sensors through a ground tripod, a mobile measurement vehicle, an unmanned plane, an SLAM backpack and other multiple platforms, and carrying out the multi-measurement-in-one total-factor acquisition; integrating measurement results and inputting into a 'multi-measurement-in-one' database based on a full-life-cycle geographic entity, and realizing 'multi-verification-in-one' of planning verification, cadastre and real estate through comparison of point cloud and BIM. The method has the advantages of being high in collection efficiency, complete in measurement information, traceable in result, capable of supporting three-dimensional integrated acceptance and the like, and has method demonstration and technical guidance significance for comprehensively promoting in-place 'multi-measurement-in-one' implementation.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping geographic information technology, in particular to a multi-measurement-in-one data collection and database building method for an engineering construction project. Background technique [0002] "Multi-measurement in one" measurement items include the most basic planning verification measurement, real estate measurement, cadastral measurement, and civil air defense measurement, green space measurement, fire protection measurement, etc. can also be added. There are limitations in the existing "multi-measurement-in-one" technical solution: ①Measuring equipment is mainly traditional single-point measuring instruments such as GNSS receivers, total stations, and rangefinders, which have low collection efficiency, less information, and no traceability ; For example, at present, instruments such as total stations and GNSS receivers are mainly used for multi-measurement and one-in-one data c...

AI Technical Summary

Problems solved by technology

The existing "multi-measurement in one" technical solution has limitations: ①Measuring equipment is mainly traditional single-point measuring instruments such as GNSS receivers, total stations, range finders, etc., with low collection efficiency, less information, and no traceability ; For example, at present, instruments such as total stations and GNSS receivers are mainly used for multi-measurement and one-in-one data collection, which has low efficiency, less information, and is not traceable

There is also a method of using static 3D laser scanning technology on the ground to assist "multi-measurement in one", but there are blind spots on the top of the building, and there are too many stations in the green area

② The planning verification survey, real estate survey, cadastral survey and other results are stored independently. Different survey services repeatedly collect the same ground features and store them separately in the database. It is inevitable that there will be duplication, conflict, and redundancy in the spatial information of the ground features. , which is not conducive to the management of achievement data and the dynamic maintenance of the database

③The results of the "multi-inspection integration" of the existing scheme are not ideal for the support effect of the "multi-inspection integration". This makes the traditional acceptance method generally use single-point measuring instruments such as total stations and GNSS receivers to collect index data, and then perform two-dimensional comparison with drawings, which is not intuitive and requires a lot of work.

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