Platform and method for testing field splicing blind area of infrared alarm equipment

Abstract

The invention discloses a platform and a method for testing a view field splicing blind area of infrared alarm equipment, and belongs to the technical field of infrared alarm. The test platform comprises two infrared alarm devices and an infrared simulation target. The two infrared alarm devices are installed on the multi-dimensional rotary table through the tool supports respectively, the view field angles of the infrared alarm devices installed on the tool supports are independently adjusted through the tool supports, and the spatial postures of the two infrared alarm devices are synchronously adjusted through the multi-dimensional rotary table so that the spatial relation in the actual installation state can be simulated. The infrared simulation targets are arranged on the opposite sides of the two infrared alarm devices, and the range of the view field blind area is determined through position adjustment. The problems that the view field of a single infrared imaging system is limited, a plurality of infrared imaging systems can generate a large view field image, the resolution ratio is low, and the situation awareness capability of an application platform is influenced by a generated blind area are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of infrared alarms, and in particular relates to a testing platform and a method for blind spots of field splicing of infrared alarm equipment. Background Art

[0002] Infrared warning equipment is an important application of infrared technology in the execution of tasks. It receives the target's thermal radiation through the infrared imaging detection system to sense the target for passive detection and imaging, and then completes the early warning of incoming threat targets. It has the advantages of good concealment, all-day operation, anti-electromagnetic interference and high angular resolution, and has become one of the key equipment in the modern war defense system. With the complexity of application scenarios and the development of optoelectronic countermeasure technology, infrared warning equipment is required to have the performance of fast response speed, large field of view and high spatial resolution. Due to the limited field of view of a single infrared imaging system, people usually change its focal length to obtain a large field of view image, but this will reduce the image resolution and seriously affect the target detection and tracking accuracy of the infrared warning equipment. Therefore, in order to solve the contradiction between the system's requirements for a large field of view and high spatial resolution, omnidirectional infrared warning equipment usually adopts an external field of view splicing method to obtain a large field of view image, that is, multiple sequential images of adjacent fields of view are spliced ​​according to their related overlapping areas to obtain a large field of view image.

[0003] However, due to the inherent properties of the imaging field of view of the infrared warning device, there is a triangular (looking down) field of view blind spot in the close range of two adjacently installed infrared warning devices. This blind spot will affect the situational awareness capability of the application platform, and thus affect its survivability, but there is no professional method and dedicated testing equipment for blind spot testing and evaluation in the industry. Therefore, the present invention provides a testing platform and method for the blind spot of the splicing field of view of infrared warning devices, which can accurately and efficiently measure the blind spot of infrared warning devices, which is very important for evaluating the performance of infrared warning devices. Summary of the invention

[0004] Technical issues to be solved:

[0005] In order to avoid the shortcomings of the prior art, the present invention provides a test platform and method for the blind area of ​​the field of view splicing of infrared warning equipment. The platform sets two infrared warning devices adjacent to each other to generate a blind area of ​​the field of view between the two devices. By adjusting their viewing angles, they can respectively face and image infrared simulation targets; the infrared simulation target is adjusted from the blind area of ​​the field of view to the overlapping area outside the blind area, and then the range of the blind area is determined through gradual adjustments. For imaging of infrared simulation targets in the overlapping area outside the blind area, a splicing method is used to improve the imaging quality of large field of view images. The present invention solves the problems that the field of view of a single infrared imaging system is limited, and multiple infrared imaging systems will produce low resolution of large field of view images and the resulting blind areas affect the situational awareness capability of the application platform.

[0006] The technical solution of the present invention is: a test platform for the blind spot of the field of view splicing of infrared warning equipment, comprising two infrared warning equipment and an infrared simulation target; the two infrared warning equipment are respectively installed on a multi-dimensional turntable through tooling brackets, the field of view angle of the infrared warning equipment installed thereon is individually adjusted through the tooling brackets, and the spatial postures of the two infrared warning equipment are synchronously adjusted through the multi-dimensional turntable to simulate the spatial relationship under the actual installation state; the infrared simulation target is set on the opposite side of the two infrared warning equipment, and the range of the blind spot of the field of view is determined by position adjustment.

[0007] A further technical solution of the present invention is: a distance measuring system is installed on the multi-dimensional turntable to measure the distance between the infrared simulation target and the infrared warning device; the distance measuring system includes a rangefinder and an imaging sight, the rangefinder is arranged between the two infrared warning devices, and the imaging sight is arranged on the same optical axis as the rangefinder to assist the rangefinder in ranging work, thereby facilitating system angle adjustment and ranging.

[0008] A further technical solution of the present invention is: the multi-dimensional turntable is a two-dimensional turntable, which can synchronously adjust the pitch / azimuth angles of two infrared warning devices; the two infrared warning devices are placed on the two-dimensional turntable on a circle with the imageable sight as the center, and the rangefinder is located at the midpoint of the line connecting the positions of the two infrared warning devices; the infrared simulation target and the rangefinder are arranged relative to each other, that is, the line connecting the infrared simulation target and the position of the rangefinder is perpendicular to the line connecting the positions of the two infrared warning devices.

[0009] A further technical solution of the present invention is: it also includes an integrated control image processing terminal, which is respectively connected to the infrared warning device, the multi-dimensional turntable, and the tooling bracket, and adjusts the spatial postures of the two infrared warning devices by controlling the rotation angles of the multi-dimensional turntable and the tooling bracket, and analyzes and processes the images collected by the infrared warning device.

[0010] A further technical solution of the present invention is: the infrared simulation target includes a charging power supply, a mobile platform, a ranging target board and a point light source; the charging power supply provides the infrared simulation target with the electric energy required for operation; the mobile platform can assist the free movement of the infrared simulation target and simulate infrared targets at different distances; the ranging target board provides a suitable large-area ranging plane for the rangefinder, and accurate ranging can be achieved without precise angle calibration; the point light source is a combined characteristic pattern, which is used to provide a cooperative target to the infrared warning device, so as to facilitate identification and test analysis.

[0011] A method for testing blind spots in the field of view of infrared warning equipment, the specific steps are as follows:

[0012] Install the test platform for the blind area of ​​the field of view splicing of the infrared warning device according to the installation requirements;

[0013] Adjust the initial posture and position of the two infrared warning devices;

[0014] Adjust the height of the infrared simulation target and make sure that its moving path is on the same horizontal plane as the two optical axes of the two infrared warning devices;

[0015] Rotate the multi-dimensional turntable in a step-by-step manner so that the two infrared warning devices respectively image the infrared simulated target until the angle limit is reached, that is, the infrared simulated target is separated from and away from the edge of the field of view of the infrared warning device;

[0016] When two infrared warning devices are facing the infrared simulation target but cannot image it at the same time, it is judged that the location of the infrared simulation target at that moment is in the blind area of ​​the field of view of the two infrared warning devices; at this time, the infrared simulation target is moved along the moving path of the infrared simulation target in the direction away from the infrared warning device by a set distance until the infrared simulation target appears in the imaging screens of the two infrared warning devices at the same time, and it is judged that the location of the infrared simulation target does not belong to the blind area of ​​the field of view;

[0017] Rotate the multi-dimensional turntable to measure the turntable angles of the edge imaging of the two infrared warning devices respectively, and then calculate the blind area angle of the field of view according to the turntable angles of the two infrared warning devices;

[0018] When two infrared warning devices can image the infrared simulation target at the same time, the infrared simulation target is gradually moved along the moving path toward the infrared warning device until the infrared simulation target cannot appear in the images of the two infrared warning devices at the same time, and it is determined that the infrared simulation target is at the farthest distance point in the blind spot relative to the infrared warning device at this time;

[0019] By combining the farthest distance point in the blind area with the blind area angle, the blind area range of the two infrared warning devices can be obtained.

[0020] A further technical solution of the present invention is: the initial positions of the two infrared warning devices are such that a line connecting the positions of the two infrared warning devices is collinear with the position of the infrared simulation target.

[0021] A further technical solution of the present invention is: the moving path of the infrared simulation target is the radial direction of the circle where the two infrared warning devices are located; the moving distance from the blind area to the non-blind area of ​​the field of view is set to 1m, and the distance from the non-blind area to the blind area of ​​the field of view is set to 0.1m each time.

[0022] A further technical solution of the present invention is: the method for calculating the blind spot angle is to first move the infrared simulation target to the non-blind spot of the field of view; then, rotate the multi-dimensional turntable clockwise, and when the infrared simulation target just appears at the right edge of the left-eye infrared warning device, record the turntable angle α; rotate the multi-dimensional turntable counterclockwise, and when the target just appears at the left edge of the right-eye infrared warning device, record the turntable angle β, and |α-β| is the blind spot angle θ.

[0023] A method for performing infrared image stitching on a test platform for a blind area of ​​a field of view stitching of an infrared warning device, the specific steps of which are as follows:

[0024] Fix the infrared alarm device to be tested on the turntable, start the device, and each instrument performs self-test and initialization;

[0025] After initialization, place the infrared simulation target outside the blind area of ​​the infrared warning device under test;

[0026] Operate the multi-dimensional turntable to rotate and ensure that the simulated target is exactly at the overlap position of the edge of the field of view of the left infrared warning device and the right infrared warning device;

[0027] Open the shutter of the left infrared warning device, close the shutter of the right infrared warning device, collect binocular images and stitch them together;

[0028] Open the shutter of the right infrared warning device, close the shutter of the left infrared warning device, collect binocular images and stitch them together;

[0029] The single-point stitching quality assessment is performed on the two captured images. If the infrared simulated target imaging does not traverse the stitching area, the rotation step is repeated; if the infrared simulated target imaging traverses the stitching area, a comprehensive stitching quality assessment is performed on the captured images, and the test process is completed.

[0030] Beneficial Effects

[0031] The beneficial effect of the present invention is that the platform of the present invention realizes the test and evaluation of the blind area of ​​the warning device and the image stitching quality through the step rotation of the turntable and the continuous movement of the infrared simulation target. The core indicators of the blind area of ​​the imaging field of view blind area of ​​the tested infrared warning device, namely the blind area angle and the farthest distance of the blind area, can be accurately tested and evaluated. The test scene is easy to build, the test process is simple, the work efficiency is high, and the accuracy is good.

[0032] Preferably, the present invention performs synchronous posture adjustment on the binocular infrared warning device through a two-dimensional turntable, and under the control of the integrated control image processing terminal, a precise rotation angle can be obtained, thereby improving the accuracy of determining the blind spot range.

[0033] Preferably, the infrared simulation target has the capabilities of being movable, self-powered, and providing a ranging reference surface.

[0034] Preferably, when determining the position of the farthest point in the blind spot, the moving distance of the infrared simulation target along the moving path is set to 0.1m, so that the critical point between the blind spot and the non-blind spot in the field of view can be obtained quickly and accurately, and then the position of the farthest point in the blind spot can be obtained.

[0035] The binocular infrared warning device of the present invention uses image stitching in the overlapping area to improve the imaging quality. Image stitching is to combine several images with a certain overlapping area into a panoramic image that meets the dual requirements of field of view and resolution. Among them, the infrared warning device stitches the images of several infrared warning devices to form a panoramic situation awareness image, which can provide all-round 4π space protection for the application platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Schematic diagram of the installation position and blind area of ​​the infrared warning device in the embodiment of the present invention;

[0037] Figure 2 Schematic diagram of the composition of the test platform in an embodiment of the present invention;

[0038] Figure 3 is a composition diagram of an infrared simulation target in an embodiment of the present invention;

[0039] Figure 4 is a composition diagram of a distance measurement system in an embodiment of the present invention;

[0040] Figure 5 is a schematic diagram of a test scenario in an embodiment of the present invention;

[0041] Figure 6 1 is a schematic diagram of a blind spot distance test process in an embodiment of the present invention;

[0042] Figure 7 It is a schematic diagram of the splicing quality test process in an embodiment of the present invention.

[0043] Explanation of the reference numerals: 1. Left-eye infrared warning device, 2. Right-eye infrared warning device, 3. Virtual camera, 4. Infrared simulation target, 5. Rangefinder, 6. Tooling bracket, 7. Two-dimensional turntable, 8. Integrated control image processing terminal. DETAILED DESCRIPTION

[0044] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0045] Based on the problem that there is currently a lack of professional methods and special testing equipment for testing and evaluating the blind spots of infrared warning devices, the present invention provides a testing platform for the blind spots of the visual field splicing of infrared warning devices, comprising an infrared simulation target for providing a cooperative target, the infrared simulation target is equipped with a universal roller, and a moving distance test can be conveniently performed; a two-dimensional turntable, the two-dimensional turntable can provide an adjustment range of pitch and azimuth dimensions; a tooling bracket for fixing the infrared warning device is installed on the two-dimensional turntable, the field of view angle of the infrared warning device installed thereon is adjusted separately by the tooling bracket, and the spatial postures of two infrared warning devices are synchronously adjusted by the multi-dimensional turntable to simulate the spatial relationship of the devices under the actual installation state; two infrared warning devices and a laser rangefinder are installed on the tooling bracket, and the laser rangefinder is used to measure the distance between the infrared simulation target and the infrared warning device; a comprehensive control image processing terminal is connected to the two-dimensional turntable to realize the control of the turntable and the image acquisition and analysis, and the comprehensive control software is deployed in the terminal.

[0046] As a preferred embodiment, the infrared simulation target includes a charging power supply, a mobile platform, a ranging target plate and a point light source. The infrared simulation target has the capabilities of being movable, self-powered, and providing a ranging reference plane. The charging power supply can provide the infrared simulation target with the power required for operation. The mobile platform can assist the infrared simulation target to move freely on the ground and simulate infrared targets at different distances. The ranging target plate can provide a large-area ranging plane for cooperation with the laser rangefinder, and accurate distance measurement can be performed without precise angle calibration. The point light source provides a cooperative target for the infrared warning device, which is convenient for testing and analysis. In order to improve the display effect of the point light source, the point light source is a combined characteristic pattern for easy identification.

[0047] As a preferred embodiment, the two-dimensional turntable can synchronously adjust the pitch / azimuth angles of the two infrared warning devices; the two infrared warning devices are placed on the two-dimensional turntable on a circle with the imageable sight as the center, and the rangefinder is located at the midpoint of the line connecting the positions of the two infrared warning devices; the infrared simulation target and the rangefinder are arranged relative to each other, that is, the line connecting the infrared simulation target and the position of the rangefinder is perpendicular to the line connecting the positions of the two infrared warning devices.

[0048] As a preferred embodiment, the distance measuring system includes a distance measuring machine and an imaging sight. As a preferred embodiment, the distance measuring machine communicates in a program-controlled manner and is powered by direct current. The distance measuring machine is used to measure the distance between the infrared warning device and the infrared target. The computer can send distance measuring and end instructions to the distance measuring machine.

[0049] As a preferred mode, the imageable sight and the rangefinder have the same optical axis, and the imageable sight can assist the rangefinder in measuring distance, making it convenient to adjust the system angle and measure distance. As a preferred mode, the imageable sight image is collected and displayed by a computer.

[0050] In order to achieve the above-mentioned purpose of the invention, the present invention also provides a method for measuring the blind spot of infrared warning equipment using the infrared simulation target, two-dimensional turntable, laser rangefinder, integrated control image processing terminal, and imaging sight of the above-mentioned platform. The method can measure the blind spot by maneuvering the infrared simulation target and the turntable.

[0051] As a preferred embodiment, the testing method comprises the following steps:

[0052] Step 1: Install two infrared alarm devices on the turntable tooling of the test platform according to the installation requirements;

[0053] Step 2: Place the infrared simulated target in front of the infrared warning device. 0 (Generally, L 0 >3 meters), adjust the height of the infrared simulation target and ensure that the moving path of the infrared simulation target and the two optical axes of the two infrared warning devices are basically on the same horizontal plane;

[0054] Step 3: The two-dimensional turntable rotates step by step from left to right, and the two infrared warning devices respectively image the infrared simulated target until the angle limit is reached, that is, the target source is separated from and away from the edge of the field of view of the infrared warning device.

[0055] Step 4: If both infrared warning devices can image the infrared simulated target, but the infrared simulated target does not appear in the imaging screens of the two infrared warning devices at the same time, then L 0 The point position is the blind area. At this time, move the infrared target of the infrared simulation target and move the target plate away from the infrared warning device to a distance L. 1 Point (L 1 Point and L 0 The point spacing is 1m), repeat step 3.

[0056] Step 5: Repeat steps 3 and 4 until the infrared simulated target appears in the imaging screens of the two infrared warning devices at the same time. At this time, the infrared target is at a distance of L from the infrared warning device. x This is not a blind spot.

[0057] Step 6: Move the infrared target to L in the direction close to the infrared warning device. x1 Point (L x1 Point and L x Point spacing is 0.1m);

[0058] Step 7: Repeat step 3. If the infrared simulated target can appear in the imaging screens of the two infrared warning devices at the same time, repeat steps 6 and 3 in sequence until the infrared simulated target cannot appear in the images of the two infrared warning devices at the same time. At this time, the distance between the infrared target and the infrared warning device is L. y , Ly It is an important indicator of blind spot.

[0059] Step 8: Move the infrared target to L x Adjust the 2D turntable angle. When the infrared target appears at the right edge of the infrared warning device on the left (infrared, the same below), record the turntable angle α; rotate the turntable counterclockwise (looking down). When the infrared target appears at the left edge of the infrared warning device on the right, record the turntable reported angle β. |α-β| is the blind spot angle θ. θ is another important indicator of the blind spot.

[0060] The method for performing infrared image stitching on the test platform for the blind area of ​​the field of view stitching of the infrared warning device, specifically comprises the following steps:

[0061] Step 1: Fix the infrared alarm device to be tested on the turntable, start the device, and each instrument performs self-test and initialization;

[0062] Step 2: After initialization, place the infrared simulation target outside the blind area of ​​the infrared warning device under test;

[0063] Step 3: Operate the multi-dimensional turntable to rotate and ensure that the simulated target is exactly at the overlapped position of the edge of the field of view of the left infrared warning device and the right infrared warning device;

[0064] Step 4: Open the shutter of the left infrared warning device, close the shutter of the right infrared warning device, collect binocular images and stitch them together;

[0065] Step 5: Open the shutter of the right infrared warning device, close the shutter of the left infrared warning device, collect binocular images and stitch them together;

[0066] Step 6: Perform a single-point stitching quality assessment on the two captured images. If the infrared simulated target imaging does not traverse the stitching area, repeat the rotation step; if the infrared simulated target imaging traverses the stitching area, perform a comprehensive stitching quality assessment on the captured images, and the test process is completed.

[0067] The above technical solution is further described below with reference to the accompanying drawings and examples:

[0068] Example 1

[0069] Reference Figure 1 As shown, the present embodiment is a field of view blind spot test platform system for infrared warning equipment, including a cooperative target source simulation target for cooperating with the equipment under test, a rangefinder for measuring the distance between the simulation target and the equipment under test, left and right infrared warning devices and shutters placed on a bracket, a two-dimensional turntable for supporting the test / equipment under test, and an integrated control image processing terminal for test data / image processing.

[0070] Preferably, the simulated target is a movable target plate with obvious infrared characteristics, such as Figure 3 As shown, it is composed of a charging power supply, a mobile platform, a ranging target plate, and a point light source. It can be self-powered to provide a ranging reference for the rangefinder.

[0071] Preferably, Figure 4 As shown, the distance measuring system is composed of a rangefinder and an imaging sight. The aiming of the imaging sight facilitates the distance measuring work of the rangefinder.

[0072] Preferably, a rigid bracket for fixing the infrared warning device is installed on the turntable, which is used for mechanically fixing the infrared warning device to be tested.

[0073] Example 2

[0074] Reference Figure 5 As shown, this embodiment describes the test scenario of the test platform. The infrared warning device under test is fixed on a two-dimensional turntable and a bracket, and a simulated target plate is placed in front of the two-dimensional turntable; if the target can be imaged in the left and right infrared warning devices at the same time by rotating the two-dimensional turntable, it means that the simulated target is not in the blind spot. If the simulated target appears in the left and right infrared warning devices successively by rotating the two-dimensional turntable, it means that it is in the blind spot. The far end distance of the blind spot can be determined by moving the simulated target far and near in combination with the imaging of the simulated target in the left and right infrared warning devices.

[0075] Example 3

[0076] Reference Figure 6 As shown, this embodiment provides a method for performing blind spot testing using the platform in Embodiment 1, and the testing method includes the following steps:

[0077] Step (a): Fix the infrared alarm device to be tested on the turntable, start the device, and initialize each instrument.

[0078] Step (b): After initialization, place the simulation target in front of the device under test.

[0079] Step (c): Operate the turntable to rotate step by step from left to right, and the two infrared warning devices perform binocular imaging of the simulated target until the target reaches the edge of the field of view.

[0080] Step (d): If the simulated target never appears in the field of view of the two infrared warning devices under test at the same time during the entire stepping rotation of the turntable, the location of the simulated target is a blind spot and moves 1m away from the turntable. Repeat steps (c) and (d) until the simulated target appears in the field of view of the two infrared cameras under test at the same time.

[0081] Step (e): If the simulated target appears in the field of view of the two infrared warning devices under test at the same time, the location of the simulated target is not in the blind spot at this time. Move 0.1m in the direction close to the turntable, repeat step (c), and observe whether the two infrared warning devices under test can image the simulated target at the same time. If they can image at the same time, use a rangefinder to test the distance of the simulated target; if they cannot image, repeat step (d) until they can image at the same time.

[0082] Example 4

[0083] Reference Figure 7 As shown, this embodiment provides a method for testing the quality of infrared image stitching using the platform in Embodiment 1, and the testing method includes the following steps:

[0084] Step (a): Fix the infrared alarm device to be tested on the turntable, start the device, and each instrument performs self-test and initialization.

[0085] Step (b): After initialization, place the simulated target and the device under test to ensure that they are outside the blind area.

[0086] Step (c): Operate the turntable to rotate to a certain position to ensure that the simulated target is exactly at the overlapping position of the edge of the field of view of the left infrared warning device and the right infrared warning device.

[0087] Step (d): Open the shutter of the left infrared warning device, close the shutter of the right infrared warning device, collect binocular images and stitch them together.

[0088] Step (e): Open the shutter of the right infrared warning device, close the shutter of the left infrared warning device, collect binocular images and stitch them together.

[0089] Step (f): Perform a single-point stitching quality assessment on the two captured images. If the cooperative target imaging does not traverse the stitching area, repeat steps (a) to (f). If the cooperative target imaging traverses the stitching area, perform a comprehensive stitching quality assessment on the captured images, and the test process is completed.

[0090] It should be noted that, for the sake of simplicity, the embodiments of the present application are described as a series of component combinations, but those skilled in the art should be aware that the device of the present application is not limited by the materials and components described, because according to the present application, certain materials and components can be replaced by other materials and components. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the present application.

[0091] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary 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 intent of the present invention.

Claims

1. A test platform for blind spots in the field of view of infrared warning equipment, characterized by: It includes two infrared warning devices and infrared simulation targets; the two infrared warning devices are respectively installed on a multi-dimensional turntable through tooling brackets, the field of view angles of the infrared warning devices installed thereon are individually adjusted through the tooling brackets, and the spatial postures of the two infrared warning devices are synchronously adjusted through the multi-dimensional turntable to simulate the spatial relationship under the actual installation state; the infrared simulation targets are set on the opposite sides of the two infrared warning devices, and the range of the blind area of ​​the field of view is determined by position adjustment.

2. According to claim 1, a test platform for blind spots in the field of view of infrared warning equipment, characterized in that: The multi-dimensional turntable is equipped with a distance measuring system for measuring the distance between the infrared simulation target and the infrared warning device; the distance measuring system includes a rangefinder and an imaging sight, the rangefinder is arranged between the two infrared warning devices, and the imaging sight is arranged on the same optical axis as the rangefinder to assist the rangefinder in ranging, so as to facilitate system angle adjustment and ranging.

3. According to claim 1, a test platform for blind spots in the field of view of infrared warning equipment, characterized in that: The multi-dimensional turntable is a two-dimensional turntable, which can synchronously adjust the pitch / azimuth angles of two infrared warning devices; the two infrared warning devices are placed on the two-dimensional turntable on a circle with the imageable sight as the center, and the rangefinder is located at the midpoint of the line connecting the positions of the two infrared warning devices; the infrared simulation target and the rangefinder are arranged relative to each other, that is, the line connecting the infrared simulation target and the position of the rangefinder is perpendicular to the line connecting the positions of the two infrared warning devices.

4. According to claim 1, a test platform for blind spots in the field of view of infrared warning equipment, characterized in that: It also includes an integrated control image processing terminal, which is respectively connected to the infrared warning equipment, the multi-dimensional turntable, and the tooling bracket. The spatial postures of the two infrared warning equipment are adjusted by controlling the rotation angles of the multi-dimensional turntable and the tooling bracket, and the images collected by the infrared warning equipment are analyzed and processed.

5. According to claim 1, a test platform for blind spots in the field of view of infrared warning equipment, characterized in that: The infrared simulation target includes a charging power supply, a mobile platform, a ranging target board and a point light source; the charging power supply provides the infrared simulation target with the electric energy required for operation; the mobile platform can assist the free movement of the infrared simulation target and simulate infrared targets at different distances; the ranging target board provides a large-area ranging plane for cooperation with the rangefinder, and accurate ranging can be achieved without precise angle calibration; the point light source is a combined characteristic pattern, which is used to provide a cooperative target to the infrared warning device for easy identification and test analysis.

6. A method for testing blind spots in the field of view of infrared warning equipment, characterized in that The specific steps are as follows: Installing the test platform for the blind area of ​​the field of view splicing of the infrared warning device according to any one of claims 1 to 5 according to the installation requirements; Adjust the initial posture and position of the two infrared warning devices; Adjust the height of the infrared simulation target and make sure that its moving path is on the same horizontal plane as the two optical axes of the two infrared warning devices; Rotate the multi-dimensional turntable in a step-by-step manner so that the two infrared warning devices respectively image the infrared simulated target until the angle limit is reached, that is, the infrared simulated target is separated from and away from the edge of the field of view of the infrared warning device; When two infrared warning devices are facing the infrared simulation target but cannot image it at the same time, it is judged that the location of the infrared simulation target at that moment is in the blind area of ​​the field of view of the two infrared warning devices; at this time, the infrared simulation target is moved along the moving path of the infrared simulation target in the direction away from the infrared warning device by a set distance until the infrared simulation target appears in the imaging screens of the two infrared warning devices at the same time, and it is judged that the location of the infrared simulation target does not belong to the blind area of ​​the field of view; Rotate the multi-dimensional turntable to measure the turntable angles of the edge imaging of the two infrared warning devices respectively, and then calculate the blind area angle of the field of view according to the turntable angles of the two infrared warning devices; When two infrared warning devices can image the infrared simulation target at the same time, the infrared simulation target is gradually moved along the moving path toward the infrared warning device until the infrared simulation target cannot appear in the images of the two infrared warning devices at the same time, and it is determined that the infrared simulation target is at the farthest distance point in the blind spot relative to the infrared warning device at this time; By combining the farthest distance point in the blind area with the blind area angle, the blind area range of the two infrared warning devices can be obtained.

7. According to claim 6, a method for testing blind spots in the field of view of infrared warning equipment, characterized in that: The initial positions of the two infrared warning devices are such that a line connecting the positions of the two infrared warning devices is collinear with a position of the infrared simulation target.

8. According to claim 6, a method for testing blind spots in the field of view of infrared warning equipment, characterized in that: The moving path of the infrared simulation target is the radial direction of the circle where the two infrared warning devices are located; the moving distance from the blind area to the non-blind area of ​​the field of view is set to 1m, and the distance from the non-blind area to the blind area of ​​the field of view is set to 0.1m each time.

9. According to claim 6, a method for testing blind spots in the field of view of infrared warning equipment, characterized in that: The calculation method of the blind spot angle is as follows: first, the infrared simulated target is moved to the non-blind spot of the field of view; then, the multi-dimensional turntable is rotated clockwise, and when the infrared simulated target just appears at the right edge of the left infrared warning device, the turntable angle α is recorded; and the multi-dimensional turntable is rotated counterclockwise, and when the target just appears at the left edge of the right infrared warning device, the turntable angle β is recorded, and |α-β| is the blind spot angle θ.

10. A method for performing infrared image stitching on a test platform for a blind area of ​​a field of view stitching of an infrared warning device according to any one of claims 1 to 5, characterized in that The specific steps are as follows: Fix the infrared alarm device to be tested on the turntable, start the device, and each instrument performs self-test and initialization; After initialization, place the infrared simulation target outside the blind area of ​​the infrared warning device under test; Operate the multi-dimensional turntable to rotate and ensure that the simulated target is exactly at the overlap position of the edge of the field of view of the left infrared warning device and the right infrared warning device; Open the shutter of the left infrared warning device, close the shutter of the right infrared warning device, collect binocular images and stitch them together; Open the shutter of the right infrared warning device, close the shutter of the left infrared warning device, collect binocular images and stitch them together; The single-point stitching quality of the two acquired images is evaluated. If the infrared simulated target imaging does not traverse the stitching area, the rotation step is repeated; If the infrared simulated target imaging traverses the stitching area, the quality of the stitching of the acquired images is comprehensively evaluated and the test process is completed.

Images