Detection device for sensitivity of short-wave infrared camera

Abstract

The utility model provides a device for detecting the sensitivity of a short-wave infrared camera. Relates to the technical field of short-wave infrared cameras. The top of the workbench is fixedly provided with a sliding plate, the top of the sliding plate is provided with a slideway, a test ball is movably installed in the slideway, and the top of the workbench is fixedly provided with a PC terminal located at the front side of the sliding plate. The short-wave infrared camera sensitivity detection device provided by the utility model has the advantages that cameras of various sizes can be conveniently fastened and fixed, the cameras are effectively protected, the cameras are prevented from accidentally falling off, the stability of the cameras during detection is improved by utilizing the buffer cushion, the accuracy of camera sensitivity detection is improved, and the detection efficiency is improved. The test ball can be controlled to slide from different heights according to needs, the accuracy of camera sensitivity detection is improved, and the definition of a picture shot by the camera can be conveniently compared and detected by printing a digital pattern on the test ball.

Description

Technical Field

[0001] The utility model relates to the technical field of short-wave infrared cameras, in particular to a detection device for the sensitivity of a short-wave infrared camera. Background Art

[0002] Short-wave infrared cameras have strong ability to penetrate fog, haze, and smoke. Compared with mid- and far-infrared, short-wave infrared has better resolution, higher dynamic range of imaging, and clearer details. In addition, short-wave infrared imaging can be used for passive detection under atmospheric night glow, or for active detection imaging using laser light sources with concealed wavelengths. Short-wave infrared cameras are a new type of imaging device. Sensitivity is one of the important parameters for evaluating the performance of short-wave infrared cameras. Common detection methods have low detection accuracy and are cumbersome to operate.

[0003] In response to the above problem, a Chinese patent announcement with announcement number CN215072728U discloses a short-wave infrared camera sensitivity detection device. Although the device can detect the sensitivity of a short-wave infrared camera, the short-wave infrared camera needs to be clamped on a slide and moved during the detection process, which poses a risk of the short-wave infrared camera accidentally falling and being damaged.

[0004] Therefore, it is necessary to provide a short-wave infrared camera sensitivity detection device to solve the above technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a detection device which can effectively protect the short-wave infrared camera sensitivity of a short-wave infrared camera while performing sensitivity detection on the short-wave infrared camera.

[0006] In order to solve the above technical problems, the utility model provides a short-wave infrared camera sensitivity detection device, including: a workbench, a slide is fixedly installed on the top of the workbench, a slide is opened on the top of the slide, a test ball is movably installed in the slide, a PC terminal located on the front side of the slide is fixedly installed on the top of the workbench, the PC terminal is used to connect the camera via a data cable, a clamping mechanism for fixing the camera is arranged on the workbench, and an adjustment mechanism for regulating the sliding height of the test ball is arranged on the slide.

[0007] Preferably, the clamping mechanism includes a fixed block, a positioning plate, a clamping plate, a screw, a turntable and a rocker arm. The fixed block and the positioning plate are fixedly mounted on the top of the workbench and are located on the left side of the PC end. The positioning plate is located on the left side of the fixed block. The clamping plate is slidably mounted on the top of the workbench and is located between the fixed block and the positioning plate. The screw is rotatably mounted on the left side of the clamping plate through a bearing seat. The left end thread of the screw passes through the positioning plate. The turntable is fixedly mounted on the left end of the screw, and the rocker arm is rotatably mounted on an eccentric position on the left side of the turntable.

[0008] Preferably, a guide groove located below the clamping plate is provided on the top of the workbench, a guide block is slidably installed in the guide groove, and the top of the guide block is fixedly connected to the bottom of the clamping plate.

[0009] Preferably, a buffer pad is fixedly mounted on the left side of the fixing block and the right side of the clamping plate.

[0010] Preferably, the adjusting mechanism includes a mounting plate, an electric push rod, a moving block, a baffle rod, a pulling block and a tension spring. The mounting plate is fixedly mounted on the top of the slide plate and is located on the front side of the slide. The electric push rod is fixedly mounted on the top of the mounting plate. The moving block is fixedly mounted on the output shaft end of the electric push rod. The baffle rod is slidably mounted on the moving block. The rear end of the baffle rod extends to the top of the slide and contacts the test ball. The pulling block is fixedly mounted on the front end of the baffle rod. The tension spring is sleeved on the baffle rod. The front end of the tension spring is fixedly connected to the pulling block, and the rear end of the tension spring is fixedly connected to the moving block.

[0011] Preferably, baffles are fixedly mounted on both ends of the slideway.

[0012] Preferably, a support plate is fixedly installed on the top of the workbench, and the top of the support plate is fixedly connected to the slide plate.

[0013] Preferably, a digital pattern is printed on the test ball.

[0014] Compared with the related art, the short-wave infrared camera sensitivity detection device provided by the utility model has the following beneficial effects:

[0015] The utility model provides a short-wave infrared camera sensitivity detection device. Through the clamping mechanism composed of a fixing block, a positioning plate, a clamping plate, a screw, a turntable and a rocker, cameras of various sizes can be conveniently tightened and fixed, the camera can be effectively protected to avoid accidental dropping of the camera, and the stability of the camera during detection can be improved by using a buffer pad, thereby improving the accuracy of camera sensitivity detection.

[0016] The utility model provides a short-wave infrared camera sensitivity detection device. Through an adjustment mechanism composed of a mounting plate, an electric push rod, a moving block, a stop rod, a pulling block and a tension spring, a test ball can be controlled to slide from different heights as needed, thereby improving the accuracy of camera sensitivity detection. Digital patterns are printed on the test ball, thereby facilitating comparison and detection of the clarity of photos taken by the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the pulling block;

[0019] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 4 The three-dimensional structure of the utility model is shown in FIG. Figure 3 .

[0021] Numbers in the figure: 1. Workbench; 2. Slide plate; 3. Slideway; 4. Test ball; 5. PC end; 6. Fixed block; 7. Positioning plate; 8. Clamp; 9. Screw; 10. Turntable; 11. Rocker; 12. Guide groove; 13. Guide block; 14. Buffer pad; 15. Mounting plate; 16. Electric push rod; 17. Moving block; 18. Baffle; 19. Pull block; 20. Tension spring; 21. Baffle; 22. Support plate. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1-Figure 4 ,in, Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ; Figure 2 It is a schematic diagram of the three-dimensional structure of the pulling block; Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ; Figure 4 The three-dimensional structure of the utility model is shown in FIG. Figure 3 A short-wave infrared camera sensitivity detection device comprises: a workbench 1, a slide plate 2 is fixedly installed on the top of the workbench 1, a support plate 22 is fixedly installed on the top of the workbench 1, the top of the support plate 22 is fixedly connected to the slide plate 2, the slide plate 2 can be supported and reinforced by the support plate 22, a slideway 3 is provided on the top of the slide plate 2, baffles 21 are fixedly installed at both ends of the slideway 3, a test ball 4 is movably installed in the slideway 3, a digital pattern is printed on the test ball 4, the digital pattern is used to facilitate the detection of the clarity of the photo taken by the camera, and the accuracy of the camera sensitivity detection is improved, a PC terminal 5 located on the front side of the slide plate 2 is fixedly installed on the top of the workbench 1, the PC terminal 5 is used to connect the camera through a data cable, and the photos taken by the camera can be checked through the PC terminal 5, and then the clarity of the photos is detected. It should be noted that the PC terminal 5 is electrically connected to the socket through a power cord, a clamping mechanism for fixing the camera is provided on the workbench 1, and an adjustment mechanism for adjusting the sliding height of the test ball 4 is provided on the slide plate 2.

[0024] In this embodiment, the above-mentioned adjustment mechanism includes a mounting plate 15, an electric push rod 16, a moving block 17, a baffle 18, a pulling block 19 and a tension spring 20. The mounting plate 15 is fixedly mounted on the top of the slide plate 2 and is located on the front side of the slide 3. The electric push rod 16 is fixedly mounted on the top of the mounting plate 15. The moving block 17 is fixedly mounted on the output shaft end of the electric push rod 16. The baffle 18 is slidably mounted on the moving block 17. The rear end of the baffle 18 extends to the top of the slide 3 and conflicts with the test ball 4. The pulling block 19 is fixedly mounted on the front end of the baffle 18. The tension spring 20 is sleeved on the baffle 18. The front end of the tension spring 20 is fixedly connected to the pulling block 19, and the rear end of the tension spring 20 is fixedly connected to the moving block 17. The tension spring 20 can pull the baffle 18 to extend backward to position the test ball 4.

[0025] In this embodiment, the clamping mechanism includes a fixed block 6, a positioning plate 7, a clamping plate 8, a screw 9, a turntable 10 and a rocker 11. The fixed block 6 and the positioning plate 7 are fixedly mounted on the top of the workbench 1 and are located on the left side of the PC end 5. The positioning plate 7 is located on the left side of the fixed block 6. The clamping plate 8 is slidably mounted on the top of the workbench 1 and is located between the fixed block 6 and the positioning plate 7. The left side of the fixed block 6 and the right side of the clamping plate 8 are fixedly mounted with a buffer pad 14. By using the two buffer pads 14, the stability of the clamped camera can be improved. While effectively protecting the camera, the stability of the clamped camera can be improved. The screw 9 is The bearing seat is rotatably installed on the left side of the splint 8, and the left end thread of the screw rod 9 passes through the positioning plate 7. By utilizing the combined action of the screw rod 9 and the positioning plate 7, the splint 8 can be conveniently controlled to move left and right. The turntable 10 is fixedly installed on the left end of the screw rod 9, and the rocker arm 11 is rotatably installed at an eccentric position on the left side of the turntable 10. A guide groove 12 is provided on the top of the workbench 1 below the splint 8, and a guide block 13 is slidably installed in the guide groove 12. The top of the guide block 13 is fixedly connected to the bottom of the splint 8. By utilizing the combined action of the guide groove 12 and the guide block 13, the movement of the splint 8 can be guided and constrained.

[0026] The working principle of the short-wave infrared camera sensitivity detection device provided by the utility model is as follows: the short-wave infrared camera to be detected is placed on the left side of the fixed block 6, the rocker 11 is manually controlled to rotate, the rocker 11 drives the turntable 10 and the screw 9 to rotate, and then the clamping plate 8 is controlled to move rightward to clamp and fix the camera, the test ball 4 is placed in the slide 3 and contacts the blocking rod 18, the pulling block 19 is controlled to move forward, the pulling block 19 drives the blocking rod 18 to move forward, when the blocking rod 18 is separated from the test ball 4, the test ball 4 slides and rolls under the action of its own gravity, when When the test ball 4 passes through the infrared scanning of the camera, the camera takes a picture of the test ball 4, and the taken picture is transmitted to the PC terminal 5 through the data cable. The electric push rod 16 is controlled to extend as needed, and the electric push rod 16 pushes the moving block 17 and the blocking rod 18 to extend to the upper right, thereby raising the height of the test ball 4 to slide down. The above operation is repeated, and the camera takes a picture of the test ball 4 again. The clarity of the taken picture is detected through the PC terminal 5, and then it is detected that when the short-wave infrared camera is stationary, the object moves past at a certain speed, and the short-wave infrared camera can still maintain the clarity of the picture and has good sensitivity.

[0027] Compared with the related art, the short-wave infrared camera sensitivity detection device provided by the utility model has the following beneficial effects:

[0028] The utility model provides a short-wave infrared camera sensitivity detection device. Through the clamping mechanism composed of a fixing block 6, a positioning plate 7, a clamping plate 8, a screw 9, a turntable 10 and a rocker 11, cameras of various sizes can be conveniently tightened and fixed, and the camera can be effectively protected to avoid accidental falling of the camera. The stability of the camera during detection is improved by using a buffer pad 14, and the accuracy of camera sensitivity detection is improved. In addition, through the adjustment mechanism composed of a mounting plate 15, an electric push rod 16, a moving block 17, a baffle 18, a pulling block 19 and a tension spring 20, a test ball 4 can be controlled to slide from different heights as needed, and the accuracy of camera sensitivity detection is improved. In addition, by printing a digital pattern on the test ball 4, the clarity of the photos taken by the camera can be compared and detected.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A short-wave infrared camera sensitivity detection device, characterized in that: The invention comprises a workbench (1), a slide plate (2) is fixedly mounted on the top of the workbench (1), a slideway (3) is provided on the top of the slide plate (2), a test ball (4) is movably mounted in the slideway (3), a PC terminal (5) located on the front side of the slide plate (2) is fixedly mounted on the top of the workbench (1), the PC terminal (5) is used to connect a camera via a data cable, a clamping mechanism for fixing the camera is arranged on the workbench (1), and an adjustment mechanism for adjusting the sliding height of the test ball (4) is arranged on the slide plate (2).

2. A short-wave infrared camera sensitivity detection device according to claim 1, characterized in that: The clamping mechanism comprises a fixed block (6), a positioning plate (7), a clamping plate (8), a screw (9), a turntable (10) and a rocker (11); the fixed block (6) and the positioning plate (7) are both fixedly mounted on the top of the workbench (1) and located on the left side of the PC end (5); the positioning plate (7) is located on the left side of the fixed block (6); the clamping plate (8) is slidably mounted on the top of the workbench (1) and located between the fixed block (6) and the positioning plate (7); the screw (9) is rotatably mounted on the left side of the clamping plate (8) through a bearing seat; the left end of the screw (9) is threadedly inserted through the positioning plate (7); the turntable (10) is fixedly mounted on the left end of the screw (9); and the rocker (11) is rotatably mounted on the eccentric position on the left side of the turntable (10).

3. A short-wave infrared camera sensitivity detection device according to claim 2, characterized in that: The top of the workbench (1) is provided with a guide groove (12) located below the clamping plate (8), a guide block (13) is slidably installed in the guide groove (12), and the top of the guide block (13) is fixedly connected to the bottom of the clamping plate (8).

4. A short-wave infrared camera sensitivity detection device according to claim 3, characterized in that: A buffer pad (14) is fixedly mounted on the left side of the fixing block (6) and the right side of the clamping plate (8).

5. The device for detecting the sensitivity of a short-wave infrared camera according to claim 1, characterized in that: The adjusting mechanism comprises a mounting plate (15), an electric push rod (16), a moving block (17), a blocking rod (18), a pulling block (19) and a tension spring (20); the mounting plate (15) is fixedly mounted on the top of the slide plate (2) and is located at the front side of the slideway (3); the electric push rod (16) is fixedly mounted on the top of the mounting plate (15); the moving block (17) is fixedly mounted on the output shaft end of the electric push rod (16); the blocking rod (18) is slidably mounted on the moving block (17); the rear end of the blocking rod (18) extends above the slideway (3) and contacts the test ball (4); the pulling block (19) is fixedly mounted on the front end of the blocking rod (18); the tension spring (20) is sleeved on the blocking rod (18); the front end of the tension spring (20) is fixedly connected to the pulling block (19); and the rear end of the tension spring (20) is fixedly connected to the moving block (17).

6. The device for detecting the sensitivity of a short-wave infrared camera according to claim 1, characterized in that: Baffles (21) are fixedly mounted on both ends of the slideway (3).

7. The device for detecting the sensitivity of a short-wave infrared camera according to claim 1, characterized in that: A support plate (22) is fixedly mounted on the top of the workbench (1), and the top of the support plate (22) is fixedly connected to the slide plate (2).

8. The device for detecting the sensitivity of a short-wave infrared camera according to claim 1, characterized in that: The test ball (4) is printed with a digital pattern.

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