Measuring method of total station in uneven state
A measurement method and the technology of total stations, which are applied in the direction of measuring instruments, measuring devices, instruments, etc., can solve problems such as unsmooth, inconvenient, and time-consuming intelligent total stations, so as to improve work efficiency and reduce work costs. cost effect
Active Publication Date: 2019-07-12
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
[0003] At present, the intelligent total station needs to be leveled before measuring during the entire high-speed railway track inspection process. Since the leveling time is not short, and the total station needs to Level the instrument again, so in general it takes a lot of time to level the intelligent total station, and it is not smooth and inconvenient during the static precision inspection process of the entire track
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[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0025] Under the condition that the intelligent total station is freely set up and the station is not leveled, the three-dimensional coordinates of each known point on the track line are measured, and the three-dimensional coordinates of each known point are obtained under the uneven state of the total station; therefore, these known points are There are two sets of three-dimensional coordinates, and the other set of three-dimensional coordinates is the three-dimensional coordinates under the high-speed railway track line coordinate system. Then the seven conversion parameters of the three-dimensional coordinate conversion model in space can be calculated by using the two sets of three-dimensional coordinate solutions of these known points.
[0026] In the process of 3D coordinate conversion, in fact, the 3D coordinates measured by th...
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The invention discloses a measuring method of a total station in an uneven state. The total station observes known points and unknown points on a track line in an uneven state, and obtains the difference between the known points and the unknown points on the unevenness of the total station. The three-dimensional coordinates in the horizontal coordinate system; use the oblique distance observation value from the total station to each known point to calculate the three-dimensional coordinates and accuracy of the free station of the total station through the resection solution; use each known point in the line coordinate system The three-dimensional coordinates of the total station and the three-dimensional coordinates under the unleveled coordinate system of the total station are solved to calculate the spatial three-dimensional coordinate transformation model between the two coordinate systems; The three-dimensional coordinates and their accuracy and the three-dimensional coordinates of each unknown point are converted to the three-dimensional coordinates in the line coordinate system. The invention can complete the track detection work without leveling the total station, and has the advantages of facilitating the static detection of the track, improving the working efficiency, reducing the working cost and the like.
Description
technical field [0001] The invention relates to the technical field of static detection of high-speed railway tracks, in particular to a total station measurement method in an uneven state. Background technique [0002] The total station needs to level the target before measuring it. In some practical work, leveling is not so easy to achieve, or even impossible. For example, when the elevation angle or depression angle between the observation target point and the station is too large, the total station cannot be aimed at the leveling situation. At this time, if the instrument is also tilted at an angle, the observation can be carried out. [0003] At present, the intelligent total station needs to be leveled before measuring during the entire high-speed railway track inspection process. Since the leveling time is not short, and the total station needs to Leveling the instrument again, so in general it takes a lot of time to level the intelligent total station, and it is no...
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IPC IPC(8): G01C15/00
CPCG01C15/00
Inventor 杨雪峰刘成龙罗文彬
Owner SOUTHWEST JIAOTONG UNIV