Method and system for testing posture symmetry of semi-restrained period of large-stiffness and large-length-diameter ratio intelligent ammunition

Abstract

The application discloses a large-rigidity large-length-diameter-ratio intelligent ammunition semi-constrained period posture symmetry testing method and system, and belongs to the technical field of motion parameter testing. The steps are as follows: firstly, a double-line array CCD camera intersection testing system is arranged; then, a plurality of double-line array CCD camera intersection measurement systems are controlled to continuously shoot, so that the position coordinates of the intelligent ammunition in the imaging area are measured; finally, the position coordinates of the intelligent ammunition in the imaging area of adjacent two double-line array CCD camera intersection measurement systems are acquired, the distance between the two CCD cameras in the double-line array CCD camera intersection measurement system is measured, the change amount of the pointing angle azimuth and the change amount of the elevation angle of the intelligent ammunition are calculated, and the posture change measurement of the intelligent ammunition from the muzzle to the end of the aftereffect period is completed. The application solves the problem of low measurement precision of the posture parameters of the large-rigidity large-length-diameter-ratio intelligent ammunition in the semi-constrained period in the prior art.

Description

Technical Field

[0001] The present invention belongs to the technical field of motion parameter testing, and in particular relates to a method and system for testing the semi-constraint period posture symmetry of a large-rigidity and large-length-diameter ratio intelligent ammunition. Background Art

[0002] The semi-constrained attitude parameters of intelligent ammunition with high stiffness and large aspect ratio are an important technical approach to evaluate the design effect and shooting accuracy of the new generation of suppression artillery. During the semi-constrained period of the artillery, the muzzle vibrates strongly, and the muzzle vibration drives the projectile to change its attitude. The interaction between an oversized projectile and the barrel will cause functional damage to the projectile or cause it to disintegrate. In addition, the projectile is in a strong smoke and flame environment during the semi-constrained period, making it difficult to obtain the projectile's characteristic parameters. The main methods currently being used to test the semi-constrained attitude of ammunition are: high-speed camera testing and on-board laser displacement testing. The high-speed camera testing method cannot set tracking points on the projectile body and cannot perform accurate measurements. The on-board laser displacement testing method has very low test accuracy and cannot meet the requirements of use.

[0003] The non-contact method for measuring projectile posture disclosed in the prior art involves attaching easily identifiable markers to the projectile's nose and tail. High-speed video equipment is then mounted to the side of the gun position to film the ammunition firing process. During post-processing, the positional changes of the markers in the image are manually selected and converted into changes in the ammunition's elevation. This method requires the additional attachment of markers and the manual selection of the projectile's posture angle, resulting in significant errors. Furthermore, for projectiles with high muzzle velocities, the markers attached to the nose and tail of the projectile can fall off or burn after leaving the launch tube, significantly complicating video post-processing.

[0004] The existing technology discloses the use of image recognition methods to obtain the ammunition posture angle change process. The entire process is completed automatically, but due to the limitation of single-frame images and the influence of strong smoke and flame environments, it is impossible to test the posture of intelligent ammunition with a large aspect ratio. Summary of the Invention

[0005] Technical issues to be solved:

[0006] To overcome the shortcomings of existing technologies, the present invention provides a method and system for semi-constraint attitude symmetry testing of high-rigidity, high-aspect-ratio smart ammunition. High-rigidity smart ammunition exhibits minimal or no deformation during firing, while a high aspect ratio refers to ammunition with a relatively large length and diameter, requiring multiple test systems to be placed side by side for testing. At least two test systems are required to fully capture the projectile. By employing a dual-array CCD camera intersection test system for imaging, the present invention addresses the existing issue of low semi-constraint attitude parameter measurement accuracy for high-rigidity, high-aspect-ratio smart ammunition.

[0007] The technical solution of the present invention is: a method for testing the attitude symmetry of high-rigidity and high-aspect-ratio intelligent ammunition during the semi-constraint period, the specific steps of which are as follows:

[0008] Step 1: Arrange the dual-line array CCD camera intersection test system;

[0009] The dual-line array CCD camera intersection test system comprises two line array CCD cameras arranged symmetrically to the barrel, and arranged below the barrel on both sides of the barrel, so that the target to be measured is in the imaging area where the two line array CCD cameras intersect; an adaptive light source is also installed;

[0010] Multiple sets of dual-line array CCD camera intersection test systems are arranged in parallel along the firing direction of the smart ammunition;

[0011] Arrangement 2: Determine the position coordinates of the smart munition within the imaging area;

[0012] By controlling multiple sets of dual-line array CCD cameras to continuously shoot through the intersection measurement system, the position coordinates of the smart ammunition in the imaging area are measured;

[0013] Arrangement 3: Determine the attitude parameters of the smart ammunition during the semi-constraint period;

[0014] First, the position coordinates of the smart ammunition within the imaging area of ​​two adjacent sets of dual-line array CCD camera intersection measurement systems are obtained. Then, the distance between the two CCD cameras in the dual-line array CCD camera intersection measurement system is measured. Finally, the changes in the azimuth and elevation angles of the smart ammunition's pointing angle are calculated, completing the measurement of the attitude changes of the smart ammunition from the time it leaves the muzzle to the end of its after-effect period.

[0015] A further technical solution of the present invention is: when arranging the dual-linear array CCD camera intersection test system in step 1, the CCD cameras are calibrated so that the performance of all CCD cameras is the same; the two linear array CCD cameras in the same dual-linear array CCD camera intersection test system are adjusted and controlled so that their optical axes intersect at a point in space, and the angles between the two linear array CCD cameras and the horizontal direction are consistent, and the objective lenses are arranged facing each other to form a vertical imaging area.

[0016] A further technical solution of the present invention is: the imaging area is located in the central area where the two CCD cameras intersect; the adjustment method is to take an ammunition barrel with the same structure and place it at the muzzle to simulate the state of the ammunition about to leave the muzzle, and then adjust the imaging area where the two CCD cameras intersect to the central area.

[0017] A further technical solution of the present invention is: the light source is configured in a one-to-one correspondence with the CCD camera, including a filter device and a laser lighting device, the filter device is used to attenuate the muzzle flame illumination energy, and the laser lighting device is used to enhance the illumination capability of high-rigidity and large-aspect-ratio intelligent ammunition.

[0018] A further technical solution of the present invention is: the distance between two adjacent sets of dual-line array CCD camera intersection measurement systems is less than half the length of the smart ammunition, ensuring that the smart ammunition is simultaneously within the imaging area of ​​the two sets of dual-line array CCD camera intersection measurement systems during the semi-constraint period.

[0019] A further technical solution of the present invention is: in step 2, the position coordinates of the smart ammunition passing through the imaging area are:

[0020] Horizontal axis:

[0021] Vertical axis:

[0022]

[0023]

[0024] Wherein, S is the distance between the two CCD cameras in the dual-line array CCD camera intersection measurement system; α is the angle between the optical axis of the linear array CCD camera and the horizontal plane in the dual-line array CCD camera intersection measurement system; γ1 is the angle between the optical axis corresponding to the high-stiffness and high-aspect ratio smart ammunition and the optical axis of one linear array CCD camera in the dual-line array CCD camera intersection measurement system; γ2 is the angle between the optical axis corresponding to the high-stiffness and high-aspect ratio smart ammunition and the optical axis of the other linear array CCD camera in the dual-line array CCD camera intersection measurement system; h1 is the image height of the high-stiffness and high-aspect ratio smart ammunition in one linear array CCD camera in the dual-line array CCD camera intersection measurement system; h2 is the image height of the high-stiffness and high-aspect ratio smart ammunition in the other linear array CCD camera in the dual-line array CCD camera intersection measurement system; f is the focal length of the two CCD cameras in the dual-line array CCD camera intersection measurement system.

[0025] A further technical solution of the present invention is: in the step 3, during the shooting process, the position coordinates of the high-rigidity and high-aspect-ratio smart ammunition in the imaging area of ​​the two sets of dual-array CCD camera intersection measurement systems are (Δx1, Δy1) and (Δx2, Δy2) respectively.

[0026] A further technical solution of the present invention is: in step 3, the azimuth change θ and the elevation change of the smart ammunition pointing angle are The calculation formula is as follows:

[0027]

[0028]

[0029] A semi-constrained period posture symmetry test system for high-rigidity, high-length-diameter ratio intelligent ammunition includes a gun 1, high-rigidity, high-length-diameter ratio intelligent ammunition 2, a dual-line array CCD camera intersection measurement system 3, a light source 4, a camera synchronization controller 5, and an integrated test control system platform 6; the dual-line array CCD camera intersection measurement system 3 is installed below the lateral sides of the gun 1, the light source 4 is set near the CCD cameras of the dual-line array CCD camera intersection measurement system 3, the camera synchronization controller 5 is connected to each CCD camera, and the camera synchronization controller 5 is controlled by the integrated test control system platform 6 to control multiple groups of dual-line array CCD camera intersection measurement systems 3 to take pictures simultaneously.

[0030] A further technical solution of the present invention is: a processor, a memory and an application are set in the integrated test control system, the application is stored in the memory and is configured to be executed by the processor, and the application is configured to perform the calculations in the semi-constraint period attitude symmetry test method of the large-stiffness and large-aspect-ratio intelligent ammunition.

[0031] Beneficial effects

[0032] The beneficial effects of the present invention are as follows: the present invention adopts multiple sets of dual-line array CCD camera intersection test systems, and obtains the posture of high-rigidity and large-aspect ratio intelligent ammunition through the imageable area formed by the dual-line array CCD camera intersection test system, thereby realizing the test of the posture change process of high-rigidity and large-aspect ratio intelligent ammunition during the semi-constraint period.

[0033] The present invention measures the spatial coordinates of high-rigidity, high-aspect-ratio smart ammunition based on a multi-group dual-array CCD camera intersection measurement system. By controlling the multiple groups of intersecting cameras to continuously shoot, the position coordinates of the high-rigidity, high-aspect-ratio smart ammunition within the imaging range are measured. The distance between the cameras in the dual-array CCD camera intersection measurement system is used to calculate the change in the pointing angle, azimuth, and elevation angle of the high-rigidity, high-aspect-ratio smart ammunition. This method not only provides the necessary computational parameters for the design and modeling of semi-constrained artillery for high-rigidity, high-aspect-ratio smart ammunition, but also provides data support for research on the impact of large-caliber artillery firing accuracy, improving the measurement accuracy of the smart ammunition's semi-constrained attitude parameters. It also fills a gap in semi-constrained firing attitude testing technology for high-rigidity, high-aspect-ratio smart ammunition. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a block diagram of a semi-constraint attitude test system for high-rigidity and high-aspect-ratio intelligent ammunition according to an embodiment of the present invention;

[0035] Figure 2 Schematic diagram of the layout of the dual-array CCD camera intersection test system for the semi-constrained attitude test system of a high-rigidity, high-aspect-ratio intelligent ammunition according to an embodiment of the present invention; (a) side view, (b) front view, (c) top view;

[0036] Figure 3 Schematic diagram of the intersection measurement principle of dual-line array CCD cameras in the method of an embodiment of the present invention;

[0037] Explanation of the accompanying symbols: 1. Artillery, 2. High-rigidity and high-aspect-ratio intelligent ammunition, 3. Dual-array CCD camera intersection measurement system, 4. Light source, 5. Camera synchronization controller, 6. Integrated test control system platform. DETAILED DESCRIPTION

[0038] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] The semi-constrained attitude parameters of high-rigidity, high-length-diameter-ratio smart ammunition are an important technical approach for evaluating the design effect and firing accuracy of the new generation of suppression artillery. To carry out relevant theoretical research, it is necessary to obtain authentic and effective semi-constrained attitude parameters of high-rigidity, high-length-diameter-ratio smart ammunition. During the semi-constrained period of the artillery, the muzzle vibrates strongly, and the muzzle vibration drives the projectile, causing the projectile's attitude to change. An oversized projectile interacts with the barrel, causing damage to the projectile's function or even causing it to disintegrate. Furthermore, the projectile is in a strong smoke and flame environment during the semi-constrained period, making it difficult to obtain the projectile's characteristic parameters. The present invention is based on a dual-array CCD camera intersection test method to achieve semi-constrained attitude parameter acquisition of high-rigidity, high-length-diameter-ratio smart ammunition.

[0041] This scheme uses a dual-line CCD camera intersection test method to obtain the spatial coordinates of high-stiffness, high-aspect-ratio smart ammunition. By using the dual-line CCD camera intersection method to capture the side view of the high-stiffness, high-aspect-ratio smart ammunition, the spatial coordinates of the high-stiffness, high-aspect-ratio smart ammunition are obtained, and the attitude angle parameters of the high-stiffness, high-aspect-ratio smart ammunition are then calculated. First, during the dual-line CCD camera intersection test system, the two linear CCD cameras are adjusted and controlled so that their optical axes intersect at a single point in space. The angles between the two cameras and the horizontal direction are consistent, and the objective lenses are arranged facing each other, forming a vertical imageable range. For any point within this planar imageable range (i.e., the overlapping area of ​​the two CCD fields of view), there is an image point corresponding to each of the two linear CCD cameras. Then, the x- and y-coordinates of any point within the imageable area are calculated using the image height of the smart ammunition's linear CCD cameras and the position parameters of the linear CCD cameras. Finally, by controlling the dual-line array CCD camera to continuously shoot during the semi-constrained period, the position coordinates (Δx1, Δy1) and (Δx2, Δy2) of the high-rigidity and high-aspect-ratio smart ammunition within the imaging area of ​​the intersecting cameras can be obtained. Based on the distance S between the two sets of intersecting camera test systems, the azimuth angle change θ and the elevation angle change φ of the high-rigidity and high-aspect-ratio smart ammunition are calculated.

[0042] Preferably, the imaging area is located in the central area where the two CCD cameras intersect; the adjustment method is to take an ammunition barrel with the same structure and place it at the muzzle to simulate the state of the ammunition about to leave the muzzle, and then adjust the imaging area where the two CCD cameras intersect to the central area.

[0043] Preferably, the light source is configured in a one-to-one correspondence with the CCD camera, including a filter device and a laser lighting device, the filter device is used to attenuate the muzzle flame illumination energy, and the laser lighting device is used to enhance the illumination capability of high-rigidity and high-aspect-ratio smart ammunition.

[0044] Preferably, the distance between two adjacent sets of dual-line array CCD camera intersection measurement systems is less than half the length of the smart ammunition, ensuring that the smart ammunition is simultaneously within the imaging area of ​​the two sets of dual-line array CCD camera intersection measurement systems during the semi-constraint period.

[0045] This embodiment uses CCD cameras and optical systems to build a dual-line array CCD camera intersection test system, forming a semi-constrained attitude test solution for high-rigidity and high-aspect-ratio intelligent ammunition. Figure 1 shown.

[0046] In this embodiment, multiple sets of dual-line array CCD camera intersection measurement systems 3 are arranged on the lateral sides and longitudinal bottom of the artillery 1, and a suitable light source 4 is selected, namely a wide-area muzzle flame filtering wavelength and a large-area high-energy uniform light illumination laser wavelength filtering device and a laser lighting device to attenuate the muzzle flame illumination energy, enhance the illumination capability of high-rigidity and large-aspect ratio intelligent ammunition, and improve the imaging quality of the smoke-penetrating flame. Through the integrated test control system platform 6, the camera synchronization controller 5 is triggered, and all CCD cameras in the front are triggered through the coaxial cable. The signal is connected to the test control system platform 6, and the high-speed camera and other electrical measuring equipment are synchronized in time. According to the multiple sets of dual-line array CCD camera intersection measurement systems, the coordinates of the position of the high-rigidity and large-aspect ratio intelligent ammunition can be measured.

[0047] The dual-line array CCD camera intersection measurement system 3 is arranged on the lateral side and longitudinal bottom of the gun, ensuring that the two CCD cameras of the dual-line array CCD camera intersection measurement system are symmetrically arranged with equal spacing on the barrel, and it is necessary to ensure that multiple sets of dual-line array CCD camera intersection measurement systems are arranged in parallel, specifically as follows: Figure 2 . During the semi-constraint period, the camera synchronization controller 5 is triggered through the integrated test control system platform 6 to control multiple sets of dual-array CCD camera intersection measurement systems 3 to perform continuous shooting at the same time. In the dual-array CCD camera intersection measurement system, the optical axes of the two sets of CCD cameras intersect at one point, and the angles between the two optical axes and the horizontal direction are both α. The focal length of the optical system is f, and the image heights of the CCD cameras of the high-rigidity and high-aspect ratio smart ammunition are h1 and h2 respectively. It is stipulated that h1 and h2 are the difference between the pixel number of the target imaging center and the pixel number where the optical axis is located. The angles between the two main light rays corresponding to the high-rigidity and high-aspect ratio smart ammunition and the horizontal direction are α+γ1 and α+γ2 respectively, as shown below. Figure 3 The coordinates of any point in the overlapping area of ​​the high-rigidity, high-aspect-ratio smart ammunition passing through the imaging range of two CCD cameras can be calculated using the following formula:

[0048]

[0049]

[0050]

[0051]

[0052] Where: S is the distance between the two CCD cameras in the dual-line array CCD camera intersection measurement system;

[0053] α is the angle between the optical axis of the linear array CCD camera and the horizontal plane in the dual linear array CCD camera intersection measurement system;

[0054] γ1 is the angle between the optical axis corresponding to the high-rigidity and high-aspect-ratio intelligent ammunition and the optical axis of one linear array CCD camera in the dual-linear array CCD camera intersection measurement system;

[0055] γ2 is the angle between the optical axis corresponding to the high-rigidity and high-aspect-ratio intelligent ammunition and the optical axis of the other linear array CCD camera in the dual-linear array CCD camera intersection measurement system;

[0056] h1 is the image height of a linear array CCD camera in the dual linear array CCD camera intersection measurement system for high-rigidity and high-aspect-ratio intelligent ammunition;

[0057] h2 is the image height of the other linear array CCD camera in the dual linear array CCD camera intersection measurement system for high-rigidity and high-aspect-ratio intelligent ammunition;

[0058] f is the focal length of the two cameras in the dual-line array CCD camera intersection measurement system.

[0059] The intersection measurement system of two adjacent sets of dual-line array CCD cameras can measure the coordinates of two positions of the high-rigidity, high-length-diameter ratio smart ammunition. During the shooting process, the position coordinates of the high-rigidity, high-length-diameter ratio smart ammunition in the two sets of intersecting camera test areas are (Δx1, Δy1) and (Δx2, Δy2). The distance between the two sets of equipment is S. Because the high-rigidity, high-length-diameter ratio smart ammunition has a large stiffness, the pointing angle azimuth change θ and the elevation angle change of the high-rigidity, high-length-diameter ratio smart ammunition can be obtained based on only the two sets of coordinate positions. The calculation is as follows:

[0060]

[0061]

[0062] That is, the measurement of the posture change of the smart ammunition from the time it leaves the muzzle to the end of its after-effect period is completed.

[0063] The present embodiment provides a semi-constrained period posture symmetry test system for high-rigidity, high-aspect-ratio intelligent ammunition, comprising a gun 1, high-rigidity, high-aspect-ratio intelligent ammunition 2, a dual-line array CCD camera convergence measurement system 3, a light source 4, a camera synchronization controller 5, and an integrated test control system platform 6. The dual-line array CCD camera convergence measurement system 3 is installed below both lateral sides of the gun 1, the light source 4 is arranged near the CCD cameras of the dual-line array CCD camera convergence measurement system 3, and the camera synchronization controller 5 is connected to each CCD camera. The camera synchronization controller 5 is manipulated by the integrated test control system platform 6 to control multiple groups of dual-line array CCD camera convergence measurement systems 3 to simultaneously shoot.

[0064] The integrated test control system is provided with a processor, a memory and an application program. The application program is stored in the memory and is configured to be executed by the processor. The application program is configured to execute the calculations in the semi-constraint attitude symmetry test method of the high-stiffness and high-aspect-ratio intelligent ammunition.

[0065] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A method for testing the attitude symmetry of intelligent ammunition with high stiffness and large aspect ratio during semi-constraint period, characterized by The specific steps are as follows: Step 1: Arrange the dual-line array CCD camera intersection test system; The dual-line array CCD camera intersection test system comprises two line array CCD cameras arranged symmetrically to the barrel, and arranged below the barrel on both sides of the barrel, so that the target to be measured is in the imaging area where the two line array CCD cameras intersect; an adaptive light source is also installed; Multiple sets of dual-line array CCD camera intersection test systems are arranged in parallel along the firing direction of the smart ammunition; Step 2: Determine the position coordinates of the smart ammunition within the imaging area; the position coordinates of the smart ammunition passing through the imaging area are: Horizontal axis: (1) Vertical axis: (2) (3) (4) in, The distance between two CCD cameras in the dual-line array CCD camera intersection measurement system; is the angle between the optical axis of the linear array CCD camera and the horizontal plane in the dual linear array CCD camera intersection measurement system; The angle between the optical axis corresponding to the high-rigidity and high-aspect-ratio intelligent ammunition and the optical axis of one linear array CCD camera in the dual-linear array CCD camera intersection measurement system; The angle between the optical axis corresponding to the high-rigidity and high-aspect-ratio intelligent ammunition and the optical axis of another linear array CCD camera in the dual-linear array CCD camera intersection measurement system; The image height of a linear array CCD camera in a dual linear array CCD camera intersection measurement system for high-rigidity and high-aspect-ratio intelligent ammunition; The image height of the high-rigidity and high-aspect-ratio smart ammunition in the other linear array CCD camera in the dual linear array CCD camera intersection measurement system; is the focal length of the two CCD cameras in the dual-line array CCD camera intersection measurement system; By controlling multiple sets of dual-line array CCD cameras to continuously shoot through the intersection measurement system, the position coordinates of the smart ammunition in the imaging area are measured; Step 3: Determine the semi-constraint period posture parameters of the smart ammunition; First, the position coordinates of the smart ammunition within the imaging area of ​​two adjacent dual-array CCD camera intersection measurement systems are obtained. Then, the distance between the two CCD cameras in the dual-array CCD camera intersection measurement system is measured. Finally, the changes in the azimuth and elevation angles of the smart ammunition's pointing angle are calculated, completing the measurement of the smart ammunition's attitude changes from the time it leaves the muzzle to the end of its aftereffect period. In the step 3, the position coordinates of the high-rigidity and high-aspect-ratio smart ammunition in the imaging area of ​​the two sets of dual-array CCD camera intersection measurement systems during the shooting process are respectively ( )and( ); In step 3, the change in the azimuth angle of the smart ammunition pointing angle is and elevation angle variation The calculation formula is as follows: (5) (6)。 2. The method for testing the semi-constrained attitude symmetry of high-rigidity and high-aspect-ratio intelligent ammunition according to claim 1, characterized in that: When arranging the dual-line array CCD camera intersection test system in step 1, the CCD cameras are calibrated so that the performance of all CCD cameras is the same; the two linear array CCD cameras in the same dual-line array CCD camera intersection test system are adjusted and controlled so that their optical axes intersect at a point in space, and the angles between the two linear array CCD cameras and the horizontal direction are consistent, and the objective lenses are arranged facing each other to form a vertical imaging area.

3. The method for testing the semi-constrained attitude symmetry of high-rigidity and high-aspect-ratio intelligent ammunition according to claim 1, characterized in that: The imaging area is located in the central area where the two CCD cameras intersect; the adjustment method is to take an ammunition barrel with the same structure and place it at the muzzle to simulate the state of the ammunition about to leave the muzzle, and then adjust the imaging area where the two CCD cameras intersect to the central area.

4. The method for testing the semi-constraint attitude symmetry of high-rigidity and high-aspect-ratio intelligent ammunition according to claim 1, characterized in that: The light source is configured in a one-to-one correspondence with the CCD camera, and includes a filter device and a laser lighting device. The filter device is used to attenuate the muzzle flash illumination energy, and the laser lighting device is used to enhance the illumination capability of high-rigidity and high-aspect-ratio intelligent ammunition.

5. The method for testing the semi-constraint attitude symmetry of high-rigidity and high-aspect-ratio intelligent ammunition according to claim 1, characterized in that: The distance between two adjacent sets of dual-line array CCD camera intersection measurement systems is less than half the length of the smart ammunition, ensuring that the smart ammunition is simultaneously within the imaging area of ​​the two sets of dual-line array CCD camera intersection measurement systems during the semi-constraint period.

6. A measurement system for the semi-constraint period attitude symmetry testing method for high-rigidity and high-aspect-ratio intelligent ammunition according to claim 1, characterized in that: The invention comprises a cannon (1), a large-rigidity and large-length-diameter-ratio intelligent ammunition (2), a dual-line array CCD camera intersection measurement system (3), a light source (4), a camera synchronization controller (5) and an integrated test control system platform (6); the dual-line array CCD camera intersection measurement system (3) is installed below the lateral sides of the cannon (1); the light source (4) is arranged near the CCD camera of the dual-line array CCD camera intersection measurement system (3); the camera synchronization controller (5) is connected to each CCD camera; the camera synchronization controller (5) is controlled by the integrated test control system platform (6) to control multiple groups of dual-line array CCD camera intersection measurement systems (3) to take pictures simultaneously.

7. The test system according to claim 6, characterized in that: The integrated test control system is provided with a processor, a memory and an application program. The application program is stored in the memory and is configured to be executed by the processor. The application program is configured to execute the calculations in the semi-constraint attitude symmetry test method of the high-stiffness and high-aspect-ratio intelligent ammunition.

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