Total station networking measurement method of large-scale structural component

Abstract

The invention discloses a total station networking measurement method of a large-scale structural component, and belongs to the technical field of industrial measurement. The measurement accuracy in the prior art is low. The total station networking measurement method comprises the steps of before measurement is carried out, enabling a main station total station and an auxiliary station total station to be arranged on the two sides of the to-be-measured large-scale structural component, determining a main station user coordinate system, determining a plurality of reference points at the positions, located between the main station total station and the auxiliary station total station, of the periphery of the large-scale structural component, enabling the reference points to be brought into the main station user coordinate system, enabling six or more of the reference points to serve as station setting reference points, measuring the coordinate values of the station setting reference points, enabling the station setting reference points to be capable of being simultaneously measured by the auxiliary station total station, establishing an auxiliary station user coordinate system according to the station setting reference points, enabling the main station total station and the auxiliary station total station to respectively measure and record the coordinate values of the other reference points, and obtaining conversion parameters according to a parameter coordinate conversion equation. When measurement is carried out, data measured by the main station total station direct serve as measurement results, data measured by the auxiliary station total station serve as measurement results after coordinate conversion is carried out, and measurement on the whole large-scale structural component is completed.

Description

technical field [0001] The invention relates to a method for measuring large-scale structural parts in a network of total stations, and belongs to the technical field of industrial measurement. Background technique [0002] The existing measurement methods for large structural parts are basically developed based on building block three-dimensional measurement methods. For example, the dual-station theodolite measuring system consists of two high-precision theodolites, a computer, multi-channel connectors and connection cables, a standard ruler, a highly stable tripod and other accessories. Although some measurement systems use total stations, they only use the angle measurement function of total stations, so they also belong to theodolite measurement systems. The measuring method that adopts described theodolite measuring system is to determine the intersection measurement method in front of fixed baseline, as figure 1 As shown, the three-axis centers of the two theodolite...

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Problems solved by technology

[0010] 1. The two instruments must be located in a position where they can see each other, so that they can cooperate with the measurement to obtain the coordinate value of the point to be measured;

[0011] 2. It is necessary to modify the instrument or install corresponding equipment when the instrument is aiming at each other, so the original accuracy of the instrument cannot be guaranteed;

[0012] 3. When precise aiming, it is necessary to use a standard ruler and measure the angle to obtain the distance between two stations, and the transmission error is relatively large;

[0013] 4. When calculating the coordinate value of a point N(x, y, z) to be measured in space, the angle is involved in the calculation, and the accuracy cannot be guaranteed;

[0014] 5. If the total station is used to replace the theodolite to form the measurement system, only its angle measurement function is used, and functions such as distance measurement are not used, resulting in waste

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