Calibration method of artillery aiming performance parameter testing system
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A parameter testing and data acquisition system technology, which is applied in the field of calibration of the artillery aiming performance parameter testing system, can solve problems such as the lack of accurate and fast calibration methods, and achieve the effect of ensuring calibration accuracy and improving work precision
Inactive Publication Date: 2021-08-20
UNIT 63966 OF PLA
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The accuracy of attitude information calculation is not only related to the selection of multi-sensor fusion algorithm, but also depends to a large extent on the validity of sensor data. Even if the principle and structure of the gyroscope are quite perfect, there are still problems caused by various interference factors. However, there is currently no accurate and fast calibration method. Therefore, a new solution is urgently needed in the prior art to solve the above problems
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[0092] The present invention also provides another implementation method, which includes the following steps:
[0093] S201. Start the handheld terminal system, and start the data collection system;
[0094] S202. Control the azimuth movement of the measured object to drive the sensor to move;
[0095] S203. Stop the handheld terminal system, and complete the azimuth data collection;
[0096] S204. Start the handheld terminal system, control the pitching movement of the measured object, and drive the sensor to move;
[0097] S205. Stop the handheld terminal system, stop the data collection system, and complete the pitch data collection;
[0098] S206. According to the azimuth data and the pitch data, the data acquisition system completes the calibration by using a calibration method for the artillery aiming performance parameter testing system.
[0099] The present invention also provides another implementation method, which includes an external hand-held control switch, an...
Embodiment
[0109] Such as figure 1 As shown, the MEMS gyroscope is fixed on the muzzle as the sensor 1, and the MEMS gyroscope transmits the acquired motion data to the data acquisition system 2, and the handheld terminal system 3 and the data processing system 4 can respectively control the data collected by the data acquisition system 2 from the sensor 1. to collect. There are three calibration modes in this embodiment.
[0110] Such as figure 2 As shown, the normal mode calibration process of the test system:
[0111] 1. Test preparation;
[0112] 2. The tester clicks the "system calibration" function key on the data processing system 4 to start the system calibration;
[0113] 3. The gunner controls the azimuth movement of the measured object and drives the sensor 1 to move;
[0114] 4. The tester clicks the "system calibration" function key on the data processing system 4 again to complete the data collection;
[0115] 5. Repeat step 2, the gunner controls the pitching moveme...
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Abstract
The invention discloses a calibration method of an artillery aiming performance parameter testing system, belongs to the technical field of calibration and aims to solve the problems existing in the prior art. Motion data of a tested object are obtained through a sensor arranged on an artillery muzzle. The method comprises the following steps that the motion data of the tested object in the azimuth direction and the pitching direction are obtained; data acquired in the calibration process are subjected to filtering processing to obtain stable operation section curve data; the mean value of the data acquired by all axes in the azimuth direction and the pitching direction is determined; angular velocities of azimuth motion and pitching motion of the tested object are determined through the mean value; a strapdown matrix is determined; a matrix form is obtained according to the strapdown matrix; data of the second row and the second column, data of the third row and the second column and data of the third row and the third column of the strapdown matrix are compared to obtain a pitch angle, a roll angle and an azimuth angle between the sensor and the tested object; and numerical values of the pitch angle, the roll angle and the azimuth angle are substituted into the strapdown matrix to obtain error angles in three directions, and calibration is completed at the moment. Rapid and accurate calibration is realized.
Description
technical field [0001] The invention belongs to the technical field of calibration of artillery equipment, and relates to a calibration method for a testing system of artillery aiming performance parameters. Background technique [0002] Compared with traditional mechanical gyroscopes, MEMS gyroscopes have the advantages of low cost, small size, light weight, high reliability, small temperature drift, strong impact resistance, and large measurement range. In the field of agriculture, low-cost MEMS components are often used to calculate the real-time attitude of agricultural machinery in real time, providing accurate pose information for automatic navigation control and variable operation implementation of agricultural machinery. The accuracy of attitude information calculation is not only related to the selection of multi-sensor fusion algorithm, but also depends to a large extent on the validity of sensor data. Even if the principle and structure of the gyroscope are quite ...
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