A Filter Estimation Method for the Bottom Position of a Surveying Instrument
A surveying instrument and instrument pole technology, which is applied in the field of surveying and mapping instrument pole bottom position filtering estimation, can solve the problems of surveying and mapping instrument pole bottom position estimation accuracy decline, large volume, high cost, etc., to reduce volume and weight, improve estimation accuracy, The effect of reducing production costs
Active Publication Date: 2018-05-22
JIYI ROBOT SHANGHAI
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Problems solved by technology
[0004] However, the existing inclination measurement module will use the MEMS sensor to solve the output horizontal inclination and heading angle information. The accuracy of these angle information will be affected by the performance of the MEMS sensor, resulting in a decline in the estimation accuracy of the bottom position of the surveying instrument. At the same time, The high-performance industrial-grade MEMS sensor used in the original surveying instrument tilt correction method is expensive, costly, and bulky
Method used
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Embodiment 1
[0040] (1) Measure the length l of the support rod of the surveying instrument in advance O .
[0041] (2) Place the bottom end of the support rod of the surveying instrument on the point to be measured. In this application, a fixing device is arranged on the point to be measured, and the bottom end of the support rod of the surveying instrument is connected with the fixing device through a rotating device to ensure that the When the bottom is tilted and rotated in a circle, the position of the bottom of the pole is fixed.
[0042] (3) After fixing the bottom end of the support rod of the surveying instrument, if figure 2 As shown, rotate the bottom end of the support rod in an 8-shaped or circular or spiral shape;
[0043] (4) During the tilting circle rotation process, the surveying instrument automatically records the time period (t 1 ~t n ) The position coordinates of multiple position points of the surveying instrument at equal time intervals [λ (1) , L (1) ,h (1)...
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The invention relates to the field of surveying and mapping equipment and particularly relates to a filtering estimation method for a pole bottom position of a surveying and mapping instrument. According to the filtering estimation method for the pole bottom position of the surveying and mapping instrument, disclosed by the invention, a supporting rod of the surveying and mapping instrument is inclined around a point to be detected and rotates for a plurality of circles, the supporting rod is inclined and position coordinates of a plurality of position points in a rotating process are obtained; then the pole length of the supporting rod of the surveying and mapping instrument is measured; meanwhile, the production cost is reduced, the size and weight of a revising module of the pole bottom position of the surveying and mapping instrument are reduced, the estimation precision of the pole bottom position of the surveying and mapping instrument is improved and an operation revising process for estimating the pole bottom position of the surveying and mapping instrument is simplified.
Description
technical field [0001] The invention relates to the field of surveying and mapping equipment, in particular to a method for filtering and estimating the pole bottom position of a surveying and mapping instrument. Background technique [0002] The traditional surveying instrument needs to adjust the vertical of the measuring rod for each measurement, which takes a long time to measure, and the measurement efficiency is low. In addition, the accuracy of the general bubble zeroing is related to the carefulness and technology of the operator, and when the surveyor measures for a long time with high intensity, Due to the repetitive operation and fatigue of the surveyor, it is easy to cause inaccurate leveling, which seriously reduces the measurement accuracy, thereby affecting the accuracy of engineering construction and causing serious waste of manpower and material resources. [0003] Therefore, with the development and application of MEMS inclination measurement technology, in...
Claims
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IPC IPC(8): G01C15/00G01C9/00G01B21/00
CPCG01B21/00G01C9/00G01C15/00
Inventor 杭义军邢丽贾文峰吕印新
Owner JIYI ROBOT SHANGHAI