Infinite approximation automatic correction method and system based on optical axis consistency measurement

An automatic calibration and consistency technology, applied in measuring devices, optical instrument testing, testing optical performance, etc., can solve the problem of lack of high-precision automatic calibration methods, and achieve great practical value, save time, and improve calibration accuracy.

Active Publication Date: 2019-01-25
江苏无线电厂有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

However, in actual use, the photoelectric reconnaissance system is subject to shock, vibration, or device aging, as well as thermal expansion and contraction of the fixing parts, etc., which will cause deviations between the optical axes, and such slight deviations can only be found when returning to the factory or in a large-scale standard measurement center. Detected, there is a lack of general, high-precision automatic correction methods

Method used

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  • Infinite approximation automatic correction method and system based on optical axis consistency measurement
  • Infinite approximation automatic correction method and system based on optical axis consistency measurement
  • Infinite approximation automatic correction method and system based on optical axis consistency measurement

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Effect test

Embodiment 1

[0041] The infinite approximation automatic correction method based on optical axis consistency measurement includes the following steps: the photoelectric correction operation terminal (ie, the upper computer) remotely controls the target, and returns the target to the center of the target plane, while ensuring that the target plane is consistent with the plane of the photoelectric equipment to be corrected Parallel; adjust the pitch and azimuth of the target by pasting fluorescent strips on the side of the target. When the fluorescent strips around the target exceed the field of view of the optoelectronic equipment, the target plane is considered to be parallel to the plane of the optoelectronic equipment to be corrected. In order to facilitate later focusing, the target is fixed by a tripod, and the distance between the tripod and the photoelectric equipment is 50±5m. In this embodiment, the distance between the tripod and the photoelectric equipment to be calibrated is 50m....

Embodiment 2

[0058] Infinity approximation automatic correction system based on optical axis coincidence measurement, such as Figure 6 As shown, including target, tripod and host computer;

[0059] The tripod includes a bracket, and a power management module, an azimuth motion mechanism, a pitch motion mechanism, a motion control module and a main control module arranged on the bracket.

[0060] The power management module is used to supply power to the correction system.

[0061] The main control module communicates with the upper computer, and coordinates the operation of other modules, such as the overall control of the laser beam center positioning module, motion control module, wireless communication module, multi-spectral light source generation module and power management module; also includes wireless communication module, the main control module is connected with the upper computer through a wireless communication module.

[0062] The main functions and implementation methods o...

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Abstract

The invention belongs to the fields of optics and automatic correction, and particularly relates to an infinite approximation automatic correction method and system based on optical axis consistency measurement. According to the method, a deviation angle between a laser optical axis and a white light axis is calculated by combining a real-time image of a visible light view field according to a position of a center spot of a laser beam in a three-light sensing imaging target, and a deviation angle between the laser optical axis and an infrared axis is also calculated in the same way; with the laser optical axis as a reference, a compensation error is sent through an automatic control protocol of a corrected photoelectric device, so as to perform first correction, a combined variance of first correction is calculated, the above steps are repeated till the variance is infinitely close to zero or a preset maximum error, or preset times for automatic correction is reached. Compared with traditional detection correction manners, the method based on image processing and automatic control technologies greatly reduces manual operation, saves time, and improves correction accuracy due to loop iterative approximation, thereby having high practical value.

Description

technical field [0001] The invention belongs to the field of optics and automatic correction, in particular to an infinite approach automatic correction method and system based on optical axis consistency measurement. Background technique [0002] With the continuous development of photoelectric reconnaissance technology, the application of photoelectric reconnaissance systems integrating multi-spectral reconnaissance means in weapon systems is becoming more and more extensive. As an important technical index to measure its performance, optical axis consistency is the guarantee of the reconnaissance accuracy of the photoelectric reconnaissance system, which will directly affect the system's capture, aiming and strike of targets. However, in actual use, the photoelectric reconnaissance system is subject to shock, vibration, or device aging, as well as thermal expansion and contraction of the fixing parts, etc., which will cause deviations between the optical axes, and such sl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02G05D3/20
CPCG01M11/00G05D3/20
Inventor 甘欣辉蒋鹏于群宁宋亮姚连喜郭贺李智君万韬蒋晓峰刘鹏郑前李俊林徐浩
Owner 江苏无线电厂有限公司
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