Building surveying and mapping device based on laser positioning

Abstract

The invention relates to a building surveying and mapping device based on laser positioning. According to the device, a laser scanning head is used for carrying out large-range scanning; the range needing surveying and mapping is determined through an image; emitted laser spots can appear only at the position where a wall exists, and laser at other positions can be transmitted to other positions due to the fact that the laser is not received by walls, so that the surveying and mapping range can be rapidly determined, and follow-up division is facilitated; two laser tracking heads are combined with a focusing camera to perform high-precision point cloud drawing, so that the precision and speed of laser surveying and mapping can be greatly improved, the automation degree is high, and human intervention is not needed; the system automatically calculates the coordinates of each point and then automatically generates a 3D model in the system, and thus, the system is convenient and fast and is suitable for large-scale use; when a plurality of different positions or angles need to be surveyed and mapped, the coordinates of the laser tracking heads are input, and the positions of the surveyed and mapped points can be automatically matched, so that surveying and mapping at different angles are realized.

Description

technical field [0001] The invention belongs to the field of engineering surveying and mapping, in particular to a building surveying and mapping device based on laser positioning. Background technique [0002] Building information modeling is a new type of computer application technology in the engineering construction industry. It provides a basis for collaborative work for the design team, construction units and construction entities including the construction operation unit. It improves production efficiency, saves costs and shortens the important role in terms of duration. [0003] Existing engineering surveying and mapping are generally based on on-the-spot testing and then modeling in the computer, which requires on the one hand the surveying and mapping process to be accurate, and at the same time requires engineers who can use modeling software to model; but in actual At the same time, site surveying and modeling require a lot of time and manpower. [0004] The em...

AI Technical Summary

Problems solved by technology

However, it needs to be combined with satellite images, and it is difficult to carry out accurate surveying and mapping, especially for the structure of smaller objects, satellites cannot achieve high-resolution surveying and mapping

[0005] Application number CN201920369868.7 discloses a three-dimensional laser scanner for surveying and mapping the internal structure of buildings, including a tripod and a scanner body set on the tripod, and also includes a mounting plate set on the tripod, set on the lower surface of the scanner body The connecting column is provided with a mounting piece for fixing the scanner body on the mounting plate, and the connecting column is provided with a mounting groove on the side wall away from the scanner body, and the mounting groove is opposite to the notch A first threaded hole is provided on the groove wall of the scanner body, a first threaded groove is provided on the bottom wall of the scanner body, and a butterfly bolt matched with the first threaded groove is provided on the inner thread of the first threaded hole; The 3D laser scanner can be stably installed on a tripod, but manual measurement is still required during actual surveying and mapping, which only plays an auxiliary role

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