Dual-optical-path detection system with dynamic tracking precision

Abstract

The utility model belongs to the technical field of artillery detection, and particularly relates to a dual-optical-path detection system with dynamic tracking precision. Comprising a sighting axis collecting device, a launching axis collecting device and a processing device, the sighting axis collecting device is installed on a sighting telescope of a to-be-tested artillery, the launching axis collecting device is installed in a gun barrel of the to-be-tested artillery, and the processing device is in communication connection with the sighting axis collecting device and the launching axis collecting device. The sighting axis collecting device collects real-time pictures of the sighting telescope, the launching axis collecting device collects implementation pictures of the orientation of the artillery, the processing device carries out data processing on the pictures collected by the sighting axis collecting device and the launching axis collecting device so as to obtain a dynamic tracking deviation value, and detection of the dynamic precision of the artillery is achieved. The device is simple in structure, can detect the dynamic tracking deviation value all the time in real time, and is especially suitable for occasions requiring complete and effective test data and real-time detection.

Description

Technical Field

[0001] The utility model belongs to the technical field of artillery detection, and in particular relates to a dual-light path detection system with dynamic tracking accuracy. Background Art

[0002] At present, the dynamic detection of artillery involves the problem of detecting the accuracy of dynamic aiming of artillery. The detection of dynamic aiming accuracy of artillery is actually a further requirement for the detection of zero position and zero line of artillery in static state, that is, when the artillery dynamically tracks the target, the pre-calibrated zero position and zero line will change, resulting in deviation in aiming and shooting.

[0003] The existing dynamic tracking accuracy detection method of artillery is generally a detection method based on digital images. A device composed of a high-speed camera is installed in the gun barrel. The real-time image in front of the muzzle is recorded to indicate the indicated direction of the axis of the artillery. The target is aimed at through a sight. When the optical axis of the sight is aligned with the target, the image obtained at this time is used to calculate the deviation of the zero position and zero line.

[0004] This type of detection method requires the center of the optical axis of the sight to be aligned with the target when the gun is dynamically tracking the target, so that the muzzle image at this time can be used as a set of valid data. However, the manual operation of the gun through the sight to track the target cannot be aligned all the time, resulting in less valid data obtained, and it is difficult to fully characterize the dynamic tracking deviation of the gun in an experiment. Therefore, a dual-optical path detection system with dynamic tracking accuracy that is convenient, fast, and has more valid data is urgently needed. Summary of the invention

[0005] The utility model provides a dual-light path detection system with dynamic tracking accuracy and solves the technical problems mentioned in the background technology.

[0006] The technical solution of the utility model is as follows: A dual-optical path detection system with dynamic tracking accuracy comprises a sighting axis acquisition device, a firing axis acquisition device and a processing device, wherein the sighting axis acquisition device is installed on the sighting mirror of the artillery to be tested, the firing axis acquisition device is installed in the barrel of the artillery to be tested, and the processing device is respectively connected to the sighting axis acquisition device and the firing axis acquisition device for communication;

[0007] The aiming axis acquisition device comprises: a housing, an aiming axis image acquisition module, an aiming axis lens and a beam splitter, wherein the aiming axis image acquisition module, the aiming axis lens and the beam splitter are installed inside the housing, the aiming axis image acquisition module is located at the focal plane of the aiming axis lens, the aiming axis lens is used to focus the light reflected by the beam splitter on the aiming axis image acquisition module, light through ports are provided on both sides of the housing, the beam splitter is located between the light through ports on both sides, and one of the light through ports is used to connect the sight of the artillery to be tested;

[0008] The launch axis acquisition device includes: a connecting component, a shell, a launch axis image acquisition module and a launch axis lens. The front end of the shell is provided with a front light opening. The launch axis image acquisition module and the launch axis lens are installed in the shell and the launch axis image acquisition module is located at the focal plane of the launch axis lens. The connecting component is installed at the rear of the shell and is used to be connected to the barrel of the artillery to be tested.

[0009] Furthermore, the aiming axis image acquisition module and the launching axis image acquisition module both include a CCD image sensor or a CMOS image sensor.

[0010] Furthermore, the image sensors in the aiming axis image acquisition module and the launching axis image acquisition module have the same acquisition frame rate.

[0011] Furthermore, the center of the connecting component coincides with the central axis of the housing.

[0012] Furthermore, the connecting component includes an inserting shaft assembly or a tightening assembly.

[0013] Furthermore, the processing device includes a processor, and the processor is communicatively connected with the aiming axis image acquisition module and the launching axis image acquisition module respectively.

[0014] Beneficial effects of the utility model: The utility model obtains the real-time picture of the sight through the aiming axis acquisition device, obtains the real-time picture of the artillery through the firing axis acquisition device, and processes the two pictures through the processing module, thereby obtaining the dynamic tracking accuracy of the artillery. The device has a simple structure and can also detect the dynamic tracking deviation at every moment in real time, which is particularly suitable for occasions that require complete and effective test data and real-time detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. The described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0017] In an embodiment of the present utility model, Figure 1 It is a structural schematic diagram provided according to the specific structure of a dual-light path detection system with dynamic tracking accuracy of the utility model, such as Figure 1As shown, the utility model includes:

[0018] The aiming axis acquisition device, the firing axis acquisition device and the processing device 8, the aiming axis acquisition device is installed on the sight of the artillery to be tested, the firing axis acquisition device is installed in the barrel of the artillery to be tested, and the processing device 8 is communicatively connected with the aiming axis acquisition device and the firing axis acquisition device respectively.

[0019] Among them, the aiming axis acquisition device acquires the real-time image of the sight, and the firing axis acquisition device acquires the implementation image of the artillery direction. The processing device 8 processes the images acquired by the aiming axis acquisition device and the firing axis acquisition device to obtain the dynamic tracking deviation, thereby realizing the detection of the dynamic accuracy of the artillery.

[0020] In one embodiment of the utility model, the aiming axis acquisition device comprises: a housing, an aiming axis image acquisition module 1, an aiming axis lens 2 and a beam splitter 3, wherein the aiming axis image acquisition module 1, the aiming axis lens 2 and the beam splitter 3 are installed inside the housing, the aiming axis image acquisition module 1 is located at the focal plane of the aiming axis lens 2, the aiming axis lens 2 is used to focus the light reflected by the beam splitter 3 on the aiming axis image acquisition module 1, light ports 4 are provided on both sides of the housing, the beam splitter 3 is located between the light ports 4 on both sides, and one of the light ports 4 is used to connect the sight of the artillery to be tested. The aiming axis image acquisition module 1 can specifically adopt an image sensor such as a CCD image sensor, a CMOS image sensor, etc., which is connected to the processing device 8 for communication.

[0021] In one embodiment of the utility model, the launch axis acquisition device comprises: a connecting component 7, a housing, a launch axis image acquisition module 6 and a launch axis lens 5, the front end of the housing is provided with a front light port, the launch axis image acquisition module 6 and the launch axis lens 5 are installed in the housing and the launch axis image acquisition module 6 is located at the focal plane of the launch axis lens 5, the connecting component 7 is installed at the rear of the housing, and is used to connect to the barrel of the artillery to be tested. The launch axis image acquisition module 6 can specifically adopt an image sensor such as a CCD image sensor, a CMOS image sensor, etc., which is connected to the processing device 8 for communication.

[0022] The center of the connecting component 7 coincides with the central axis of the housing, so that the central axis of the gun barrel coincides with the central axis of the firing axis acquisition device, ensuring that the image detected by the firing axis acquisition device does not deviate from the actual firing center. The connecting component 7 includes an inserting shaft assembly or an expansion assembly, so the connection between the firing axis acquisition device and the gun is not limited to inserting shaft or expansion fastening.

[0023] It should be noted that both the aiming axis acquisition device and the launch axis acquisition device acquire real-time images by image capture, and for this reason, the acquisition frame rates of the image sensors in the aiming axis image acquisition module 1 and the launch axis image acquisition module 6 are the same. At the same time, the aiming axis acquisition device and the launch axis acquisition device acquire images by synchronous triggering.

[0024] In one embodiment of the present invention, the processing device 8 includes a processor, which may specifically include an MCU or a CPU, and the processor is communicatively connected with the aiming axis image acquisition module 1 and the launching axis image acquisition module 6 respectively.

[0025] The processing device 8 obtains the launch axis image taken by the launch axis acquisition device and the aiming axis image taken by the aiming axis acquisition device, obtains the target plate center coordinates of the launch axis image and the launch axis reference coordinates according to the launch axis image, and obtains the aiming axis reference coordinates and the target plate center coordinates of the aiming axis image according to the aiming axis device image. The dynamic accuracy deviation is obtained by calculating each coordinate. The image processing algorithm, center coordinate extraction algorithm and dynamic accuracy deviation calculation method run by the above-mentioned processing device 8 are all well known to those skilled in the art and are prior art.

[0026] The specific use method of the utility model is as follows:

[0027] Before the test, preparation work is performed, and the launch axis acquisition device is installed in the muzzle through the connecting component 7 so that the central axis of the launch axis acquisition device coincides with the launch axis. A light port 4 of the sight acquisition device is installed at the front end of the sight, and the center of the sight acquisition device coincides with the central axis of the sight. The parallel gun calibration method is adopted to adjust the optical axis of the sight axis acquisition device to be parallel to the launch axis of the gun, and the cross intersection of the target plate in the image of the launch axis acquisition device is at the center of the image. Move the long-distance target plate, the moving direction of the long-distance target plate is perpendicular to the launch axis of the gun, and adjust the direction of the launch axis of the gun so that the long-distance target plate is always located within the acquisition range of the sight acquisition device, and obtain the image collected by the sight acquisition device at any time during the movement and the image collected by the launch axis acquisition device. At this time, since the images collected by the sight acquisition device at any time contain coordinates, even if the center of the optical axis of the current sight is not aligned with the target, it is only necessary to extract the coordinates of the image collected by the launch axis acquisition device at the same time, and the dynamic accuracy deviation can be calculated by the conventional dynamic accuracy deviation calculation method.

[0028] The following is the general calculation process of dynamic accuracy deviation:

[0029] In the initial state, the target plate center coordinates (x m ,y m) as the reference coordinate of the aiming axis and the center coordinate of the target plate of the image collected by the launch axis acquisition device (x n ,y n ) as the launch axis reference coordinate.

[0030] At any time t1, the images of the launch axis acquisition device and the aiming axis acquisition device are acquired, so as to obtain the target plate center coordinates n[x n (t1),y n (t1)] and the target plate center coordinates m[x m (t1),y m (t1)].

[0031] The target deviation of the image collected by the launch axis acquisition device includes the launch axis lateral offset and the launch axis longitudinal offset, and the formula used is:

[0032]

[0033] Where Δx n is the horizontal size of a single pixel of the emission axis acquisition device, Δy n is the vertical size of a single pixel of the emission axis acquisition device, f n is the focal length of the lens in the emission axis collection device, x n is the horizontal coordinate of the image reference coordinate of the emission axis, y n is the ordinate of the image reference coordinate of the emission axis, x n (t1) is the horizontal coordinate of the center coordinate of the emission axis image target, y n (t1) is the ordinate of the center coordinate of the emission axis image target, θ nx (t1) is the lateral offset of the launch axis, θ ny (t1) is the longitudinal offset of the launch axis.

[0034] The target deviation of the image collected by the aiming axis acquisition device includes the lateral offset of the aiming axis and the longitudinal offset of the aiming axis, and the formula used is:

[0035]

[0036] Where Δx m is the horizontal size of a single pixel of the aiming axis acquisition device, Δy m is the vertical size of a single pixel of the aiming axis acquisition device, f m is the focal length of the lens in the aiming axis acquisition device, x m is the horizontal coordinate of the aiming axis image reference coordinate, y m is the ordinate of the aiming axis image reference coordinate, x m (t1) is the horizontal coordinate of the center coordinate of the aiming axis image target, y m(t1) is the ordinate of the center coordinate of the aiming axis image target, θ mx (t1) is the lateral offset of the aiming axis, θ my (t1) is the longitudinal offset of the aiming axis.

[0037] The dynamic tracking deviation includes a horizontal deviation angle and a vertical deviation angle. The horizontal deviation angle is obtained according to the lateral offset of the sighting axis and the lateral offset of the launch axis, and the vertical deviation angle is obtained according to the longitudinal offset of the sighting axis and the longitudinal offset of the launch axis.

[0038] The calculation formula of the horizontal deviation angle is:

[0039] Δθ x (t1) = θ mx (t1)-θ nx (t1)

[0040] Among them, Δθ x (t1) is the horizontal deviation angle;

[0041] The calculation formula of the vertical deviation angle is:

[0042] Δθ y (t1) = θ my (t1)-θ ny (t1)

[0043] Among them, Δθ y (t1) is the vertical deviation angle.

[0044] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A dual-light path detection system with dynamic tracking accuracy, characterized in that: It comprises a sighting axis acquisition device, a firing axis acquisition device and a processing device (8), wherein the sighting axis acquisition device is mounted on the sighting mirror of the gun to be tested, the firing axis acquisition device is mounted in the gun barrel of the gun to be tested, and the processing device (8) is respectively connected to the sighting axis acquisition device and the firing axis acquisition device for communication; The aiming axis acquisition device comprises: a housing, an aiming axis image acquisition module (1), an aiming axis lens (2) and a beam splitter (3); the aiming axis image acquisition module (1), the aiming axis lens (2) and the beam splitter (3) are installed inside the housing; the aiming axis image acquisition module (1) is located at the focal plane of the aiming axis lens (2); the aiming axis lens (2) is used to focus light reflected by the beam splitter (3) on the aiming axis image acquisition module (1); light through ports (4) are provided on both sides of the housing; the beam splitter (3) is located between the light through ports (4) on both sides; one of the light through ports (4) is used to connect to the sighting scope of the artillery to be tested; The emission axis acquisition device comprises: a connecting component (7), a housing, a emission axis image acquisition module (6) and an emission axis lens (5); a front light passage is provided at the front end of the housing; the emission axis image acquisition module (6) and the emission axis lens (5) are installed in the housing and the emission axis image acquisition module (6) is located at the focal plane of the emission axis lens (5); and the connecting component (7) is installed at the rear of the housing and is used to be connected to a gun barrel of a gun to be tested.

2. The dual-light path detection system for dynamic tracking accuracy as claimed in claim 1, characterized in that: The aiming axis image acquisition module (1) and the launching axis image acquisition module (6) both comprise a CCD image sensor or a CMOS image sensor.

3. The dual-light path detection system for dynamic tracking accuracy as claimed in claim 1 or 2, characterized in that: The image sensors in the aiming axis image acquisition module (1) and the emission axis image acquisition module (6) have the same acquisition frame rate.

4. The dual-light path detection system for dynamic tracking accuracy as claimed in claim 1, characterized in that: The center of the connecting component (7) coincides with the central axis of the housing.

5. The dual-light path detection system for dynamic tracking accuracy as claimed in claim 1 or 4, characterized in that: The connecting component (7) comprises a shaft plugging assembly or a tightening assembly.

6. The dual-light path detection system for dynamic tracking accuracy as claimed in claim 1, characterized in that: The processing device (8) comprises a processor, and the processor is respectively communicatively connected to the aiming axis image acquisition module (1) and the launching axis image acquisition module (6).

7. The dual-light path detection system with dynamic tracking accuracy as claimed in claim 1, characterized in that: The center of the beam splitter (3) coincides with the centers of the two light passages (4).

Images