Mapping engineering top total station accuracy assessment method
A total station and gyroscope technology, which is applied in the field of accuracy evaluation of gyro total station in surveying and mapping engineering, can solve problems such as restricting the application market of gyro total station, research and development of new type gyro total station, and lack of a clear set of problems.
Inactive Publication Date: 2008-09-17
CHANGAN UNIV
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[0003] As the pace of my country's underground engineering construction continues to accelerate, and projects such as mines, subsea tunnels, river bottom tunnels, urban subways, and underground shopping malls are launched one after another, the market demand for gyro total stations will increase significantly. However, there is no clear set in China. Yes, in view of the method specifications for the evaluation of the accuracy index of the gyro total station, there is no instrument verification procedure that can be followed by the measuring instrument verification department to verify the gyro total station
This greatly restricts the application market of gyro total stations, and also poses a problem for the research and development of new gyro total stations.
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[0029] Such as figure 1 A method for evaluating the accuracy of a surveying and mapping engineering gyro total station shown, comprising the following steps:
[0030] 1) Establish a comparison control network for testing the accuracy of gyro total stations, such as figure 2 As shown, the comparison control network includes multiple control points 1, and a survey line 2 is formed between two visible control points; the distance between the middle points of the comparison control network should be controlled between 150m and 400m; In addition, there should be no large area of water, high-voltage lines and other field observation conditions that are not conducive to GPS measurement around the control point 1. The comparison control network 1 should be selected to be conducive to both gyro directional observation and gyro directional observation. Open and open areas conducive to GPS measurements;
[0031] 2) Use the total station to measure the control network with high preci...
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The invention relates to a precision evaluation method of peg-top total station of mapping engineering, comprising the steps of: establishing a contrast control network to test the precision of the peg-top total station, processing triangular mesh measurement for the contrast control network by the total station with 0.5s level angle measuring precision to obtain an angle measuring achievement of the total station; measuring the contrast control network by GPS to obtain a GPS measuring achievement; processing peg-top directional measurement to a measuring line in the contrast control network by the peg-top total station with undetermined precision to obtain a peg-top directional achievement; comparing and analyzing the angle measuring achievement and the GPS measuring achievement with the peg-top directional achievement; obtaining the direction precision index of the peg-top total station according to analytical result. The method responses the directional precision of the peg-top total station objectively and detects the peg-top total station according to the method.
Description
technical field [0001] The invention relates to a method for evaluating the accuracy of a surveying and mapping engineering gyro total station. Background technique [0002] Gyro total station is a precision measuring instrument that integrates gyroscope and total station and has all-weather, all-time, fast, efficient and independent determination of true north. High-precision gyro total stations play an irreplaceable role in national defense surveying and mapping guarantees and energy, transportation and underground infrastructure construction that are related to the lifeline of national economic development. [0003] As the pace of my country's underground engineering construction continues to accelerate, and projects such as mines, subsea tunnels, river bottom tunnels, urban subways, and underground shopping malls are launched one after another, the market demand for gyro total stations will increase significantly. However, there is no clear set in China. Yes, in view of ...
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Inventor 杨志强田永瑞石震
Owner CHANGAN UNIV