Automatic calibration system and method for photoelectric detection target

Abstract

The invention provides an automatic calibration system and method for a photoelectric detection target, and belongs to the technical field of photoelectric testing and weapon target range testing. The automatic calibration system comprises a measurement control platform, a signal detection platform and a controller; the measurement control platform and the signal detection platform are arranged at an interval, the photoelectric detection target is arranged on the measurement control platform, the signal detection platform receives light emitted by the photoelectric detection target, and the controller is electrically connected with the measurement control platform and the signal detection platform; and a detection light curtain of the photoelectric detection target is completely overlapped with a signal receiving assembly of the signal detection platform by adjusting the measurement control platform. According to the system, the included angle parameters of light curtains in a combined structure body of the photoelectric detection target can be accurately obtained, reliable data support is provided for accurate evaluation and subsequent research and development of weapon performance, the calibration precision and the use repeatability are improved, the time spent on calibration is shortened, batch production is easy, the universality is high, and the calibration result is reliable.

Description

technical field [0001] The invention belongs to the technical field of photoelectric testing and weapon range testing, and in particular relates to an automatic calibration system and method for photoelectric detection targets. Background technique [0002] The parameters of the flying projectile launched by the weapon in the weapon shooting range are an important reference for judging the performance of the weapon. The photoelectric detection target has the characteristics of convenient on-site layout, high test accuracy and low cost. One of the commonly used and important test equipment; wherein, the detection light curtain of the multi-light curtain photodetection system is formed by the optical part of a plurality of photoelectric detection targets. Due to the test environment factors and the complexity of the test geography in the weapon shooting range, in order to facilitate the rapid layout of the field test site and ensure the accuracy of the system test, the photoel...

AI Technical Summary

Problems solved by technology

Taking the four-light curtain photoelectric detection system as an example, the system tests the position, speed and other information of the high-altitude flying projectile launched by the artillery shell before reaching the damage target. The distance between the damage target and the ground is about 30 meters or more, that is to say, the detection distance of the test is the smallest. Reliable detection can only be carried out when it is above 30 meters; even if there is a slight error in the structural parameters of the photoelectric detection system, it will lead to a large deviation in the results of the projectile parameters tested by the system, and it is impossible to accurately evaluate the performance of the weapon

[0003] The traditional calibration method for the structural parameters of the multi-light curtain photoelectric detection system is to place a light source in the optical path of the photoelectric detection target, map the light curtain through the slit to simulate the real detection light curtain, and then use the multi-light curtain photoelectric detection system A single combined structure is placed on a calibrated fixed frame, and the single light curtain in the combined structure is artificially adjusted to reach the predetermined mark position, and the angle of the quadrant test is repeatedly measured and recorded; other single light curtains in the combined structure The light curtains are measured and recorded in the same way, and the angle between the light curtains is calculated by using the measured angle of a single light curtain. Although this calibration method can obtain the structural parameters of the multi-light curtain photodetection system, it is easily affected by human factors. Influenced by this, the accuracy of the measured structural parameters is not very high; if the system structural parameters with low precision are used, it will directly affect the test accuracy of the photoelectric detection system; The development unit accurately judges the performance of the weapon itself; in addition, the calibration method with too much human participation is not only cumbersome and time-consuming, but also prolongs the development cycle of the photoelectric detection system, which is not conducive to the demand for mass production of photoelectric detection systems

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