CN205228288U - Cannon multiaxis line uniformity photoelectric detection system based on from calibration technology - Google Patents

Abstract

The utility model discloses a multi-axis consistent photoelectric detection device for artillery based on the self-calibration technology, which comprises a camera, a processor and a target plate fixedly installed on the muzzle of the gun barrel by means of a clamp, and the optical axis of the camera and the barrel The axes are coincident, the camera lens is etched with a cross-shaped differentiation line, and the target plate is also etched with a cross-shaped differentiation line; it has the advantages of simple operation, no need to waste time to adjust the target plate, and the calculation process Processor automatic completion, high precision and other characteristics.

Description

Multi-axis consistent photoelectric detection device for artillery based on self-calibration technology

technical field

The utility model relates to the technical field of artillery axis calibration, in particular to a multi-axis consistent photoelectric detection device for artillery based on self-calibration technology.

Background technique

Consistency detection of artillery multi-axis is the core index of static parameter detection in the process of artillery calibration, which is used to detect multi-axis of artillery (reference axis, fire axis, laser optical axis, TV optical axis, laser optical axis, stable servo reference axis and tracking Radar reference axis) is consistent to ensure the accuracy of the artillery. At present, the army generally conducts inspections by aiming at the target board with a target calibration mirror. The difficulty of inspection is to adjust the target board to a position perpendicular to the reference axis, and at the same time ensure that the target board cannot rotate on the plumb surface, that is, the five free The disadvantages of adjusting the degree of freedom (as indicated by the arrow in Figure 8) are that the adjustment process is complex, labor-intensive, and technically demanding. The troops urgently need a convenient way to measure the consistency of the artillery's multi-axis.

Utility model content

The technical problem to be solved by the utility model is to provide a multi-axis consistent photoelectric detection device for artillery based on self-calibration technology. features.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a multi-axis consistent photoelectric detection device for artillery based on self-calibration technology, including a camera, a processor and a The target plate, the optical axis of the camera coincides with the axis of the barrel, the camera lens is etched with cross grid differentiation lines, and the target plate is also etched with cross grid differentiation lines.

The camera is a digital camera, its data output terminal is connected to a processor, and the processor is matched with a display screen.

The positions of the artillery laser axis, the infrared imager optical axis, the TV optical axis, the commander's mirror optical axis, the tracking radar electrical axis and the fire axis are marked on the target plate, and the processor is used to convert the actual image of the target plate collected by the camera into Compare with the standard image and solve for the actual deviation of the target plate position.

The beneficial effect produced by adopting the above-mentioned technical scheme is: by fixing the camera on the muzzle of the barrel and making the optical axis of the lens consistent with the axis of the barrel, the lens of the camera is corroded with divisions, and the imaging of the target plate by the camera Just superimpose the standard image reticle, and use this reticle as the reference optical axis for multi-axis consistency detection. The latitude and longitude lines are also drawn on the target plate as the basis for self-calibration with the camera lens. When the installation displacement of the target plate is perpendicular to the axis of the barrel, the standard self-calibration graph shown in Figure 2 is obtained. However, it is difficult to realize this ideal position by actually placing the target plate. That is to say, when the actual target plate is placed, there will be a deviation of 5 degrees of freedom as shown in Figure 8, and the deviation of these 5 degrees of freedom will appear in the self-calibration image shown in Figure 3-7. The image of the actual target plate position is the result of multiple random combinations of the 5 degrees of freedom shown in Figure 2-7. Decomposition is easily done in the processor by image recognition algorithms. Then the non-standard self-calibration graphics are corrected into standard self-calibration graphics through image processing algorithms to simplify the multi-axis consistency measurement. Compared with the existing technology, it has the advantages of simple operation, no need to waste time to adjust the target plate, and solve the process Processor completes automatically, high precision and so on.

Description of drawings

Fig. 1 is a structural principle diagram of the utility model;

Figure 2 is a standard self-calibration image;

Figure 3 is an x-offset self-calibration image;

Figure 4 is a y offset self-calibration image;

Figure 5 is a self-calibration image of α offset;

Figure 6 is the β offset self-calibration image;

Figure 7 is a gamma offset self-calibration image;

Fig. 8 is a schematic diagram of five degrees of freedom for target calibration;

Among them: 1. Target board; 2. Camera; A. Laser spot; B. Infrared optical axis; C. Vehicle commander mirror axis; D. TV axis; E. Tracking radar electrical axis; F. Fire axis.

detailed description

Below in conjunction with the accompanying drawings in the utility model embodiment, the technical solution in the utility model embodiment is clearly and completely described, obviously, the described embodiment is only a part of the utility model embodiment, rather than all implementation example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the following description, a lot of specific details have been set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways that are different from those described here, and those skilled in the art can do so without violating the connotation of the utility model. Under the circumstances, similar promotion is done, so the utility model is not limited by the specific embodiments disclosed below.

As shown in Figure 1, the utility model discloses a multi-axis consistent photoelectric detection device for artillery based on self-calibration technology, including a camera 2, a processor and a target plate 1 fixedly installed on the muzzle of the artillery barrel by means of a clamp, The optical axis of the camera 2 coincides with the axis of the barrel, the lens of the camera 2 is etched with a cross-shaped differentiation line, and the target plate 1 is also etched with a cross-shaped differentiation line; the camera 2 is a digital camera 2. Its data output terminal is connected to the processor, and the processor is equipped with a display screen; the target board 1 is marked with the laser axis of the artillery, the optical axis of the infrared imager, the optical axis of the TV, the optical axis of the commander's mirror, and the tracking radar electronic axis. The position of the axis and the fire axis, the processor is used to compare the actual image of the target plate 1 collected by the camera 2 with the standard image, and calculate the actual deviation of the position of the target plate 1 .

In the specific application process, the utility model fixes the camera on the muzzle of the barrel, and makes the optical axis of the lens consistent with the axis of the barrel, and there are divisions etched on the lens of the camera, and the image of the camera on the target plate is superimposed. The standard image reticle is used as the reference optical axis for multi-axis consistency detection. The latitude and longitude lines are also drawn on the target plate as the basis for self-calibration with the camera lens. When the installation displacement of the target plate is perpendicular to the axis of the barrel, the standard self-calibration graph shown in Figure 2 is obtained. However, it is difficult to realize this ideal position by actually placing the target plate. That is to say, when the actual target plate is placed, there will be a deviation of 5 degrees of freedom as shown in Figure 8, and the deviation of these 5 degrees of freedom will appear in the self-calibration image shown in Figure 3-7. The image of the actual target plate position is the result of multiple random combinations of the 5 degrees of freedom shown in Figure 2-7. Decomposition is easily done in the processor by image recognition algorithms. Then the non-standard self-calibration graphics are corrected into standard self-calibration graphics through image processing algorithms to simplify the multi-axis consistency measurement. Compared with the existing technology, it has the advantages of simple operation, no need to waste time to adjust the target plate, and solve the process Processor completes automatically, high precision and so on.

The utility model can be popularized and applied to the multi-axis consistency measurement of weapon systems including radar, armed helicopters, and missiles according to the needs, fills the blank of multi-axis consistency automatic detection means, effectively improves the test accuracy and test efficiency, and reduces the number of operators. Labor intensity and technical requirements.

Claims (3)

1. a kind of gun multi-axis consistent photoelectric detection device based on self-calibration technology, it is characterized in that: comprise the camera (2), processor and target plate (1) that are fixedly installed in gun barrel muzzle by means of clamps, so The optical axis of the camera (2) is coincident with the axis of the body barrel, the lens of the camera (2) is etched with cross grid differentiation lines, and the target plate (1) is also etched with cross grid division lines. 2. the self-calibration technology-based artillery multi-axis consistency photoelectric detection device according to claim 1 is characterized in that: the camera (2) is a digital camera (2), and its data output terminal is connected to a processor, and the The processor is equipped with a display screen. 3. The multi-axis consistent photoelectric detection device for artillery based on self-calibration technology according to claim 2, characterized in that: the laser axis of the artillery, the optical axis of the infrared imager, and the optical axis of the TV are marked on the target plate (1) , the position of the optical axis of the vehicle commander mirror, the electrical axis of the tracking radar and the fire axis, the processor is used to compare the actual image of the target plate (1) collected by the camera (2) with the standard image, and calculate the target plate (1) The actual deviation of the position.