An optical system anti-scan function debugging device and method

Abstract

The application provides an optical system reverse scanning function debugging device and method. The optical system reverse scanning function debugging device comprises a base, an electric control rotating platform, a first fixed seat and a second fixed seat. The base is configured to be arranged on a detection platform. The electric control rotating platform is arranged on the base. In a first direction, the first fixed seat is connected to a side of the electric control rotating platform away from the base, and a central axis of the first fixed seat is arranged in line with a rotating axis of the electric control rotating platform. In the first direction, the second fixed seat is arranged on a side of the first fixed seat away from the electric control rotating platform, and the second fixed seat is arranged eccentrically on the first fixed seat. The second fixed seat and the first fixed seat are respectively provided with mounting portions for detachably connecting with a test optical single machine, so that the test optical single machine is connected with one of the second fixed seat and the first fixed seat.

Description

Technical Field

[0001] This application relates to the field of optical system search imaging function debugging, specifically to a reverse scanning function debugging device for an optical unit with a scanning galvanometer, suitable for debugging the reverse scanning function of various optical units / systems. Background Technology

[0002] In response to the development trend of open low-altitude airspace both domestically and internationally, and the need for UAV countermeasures, an increasing number of optoelectronic detection systems are equipped with search imaging technology. The optoelectronic detection system rotates at a set speed, repeatedly scanning the target area. The imaging detector obtains a panoramic image of the target area through scanning imaging, image stitching, processing, and compensation. To obtain a clear and stable panoramic image, the turntable must maintain high-precision rotational speed under load changes or torque disturbances, ensuring that the scene imaged by the detector remains unchanged within the detector's integration time, thus completing staring imaging of the current field of view.

[0003] Optical unit reverse scanning functionality is typically only tested during system integration, after the optical system platform provides power, communication, and image processing support. Upstream suppliers frequently travel to and from the optical system integration manufacturer to test the reverse scanning functionality of their supplied optical units. This method is not only inefficient due to frequent personnel communication and back-and-forth, but also suffers from inconsistent testing quality. Furthermore, repeated assembly and disassembly of the optical unit can generate foreign matter such as thread-locking adhesive powder, which can enter the optical system and affect image quality. To meet the requirements of mass production that balances quality and efficiency, this invention provides a universal, high-precision reverse scanning function testing device, delivered to the upstream optical unit supplier, allowing them to complete the reverse scanning function testing before delivery to the main unit manufacturer. Summary of the Invention

[0004] This application provides an optical system backscan function debugging device and method, which can effectively complete the performance debugging of optical single-unit backscan function.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] In a first aspect, this application provides an optical system backscan function debugging device, which includes a base, an electrically controlled rotating platform, a first fixed base, and a second fixed base. The base is configured on a testing platform. The electrically controlled rotating platform is disposed on the base. Along a first direction, the first fixed base is connected to the side of the electrically controlled rotating platform opposite to the base, and the central axis of the first fixed base is collinear with the rotation axis of the electrically controlled rotating platform. Along the first direction, the second fixed base is disposed on the side of the first fixed base opposite to the electrically controlled rotating platform, and the second fixed base is eccentrically disposed on the first fixed base. The second fixed base and the first fixed base are each provided with a mounting portion, which is used for detachable connection with the optical unit under test, so that the optical unit under test can be connected to one of the second fixed base and the first fixed base.

[0007] In the above scheme, the optical system backscan function debugging device is used to test the performance of the optical unit's backscan function. The tested optical unit is mounted on a second fixed base via a mounting part. The second fixed base is eccentrically positioned on the first fixed base, allowing it to rotate eccentrically under the drive of an electrically controlled rotating platform. The tested optical unit outputs video to a video display. By setting the rotation speed of the electrically controlled rotating platform and the backscan function parameters of the tested optical unit using a debugging computer, and combining this with the image clarity displayed on the video display, it is determined whether the backscan function requirements are met, thus achieving the goal of efficient backscan function debugging.

[0008] According to some embodiments of this application, the first fixing seat is a straight plate structure, and the second fixing seat protrudes from the first fixing seat along the first direction; the mounting part includes a threaded hole and a screw corresponding to the threaded hole, and the tested optical unit is fixed to the second fixing seat or the first fixing seat by the screw.

[0009] According to some embodiments of this application, the optical system backscan function debugging device further includes a third fixing plate. The third fixing plate is disposed on one side of the first fixing base and in a second direction. The third fixing plate is adjacent to the second fixing base, and the first and second directions are perpendicular to each other. A communication module is disposed on the third fixing plate. The communication module is configured with a power supply socket for the tested optical unit, a communication socket for the tested optical unit, and a video output socket for the tested optical unit. The power supply socket for the tested optical unit is used to supply power to the tested optical unit. The communication socket for the tested optical unit is used to connect the tested optical unit to the communication module. The video output socket for the tested optical unit is used to connect to the tested optical unit to transmit the output video of the tested optical unit to a video display.

[0010] In the above scheme, before debugging the reverse scan function, the optical unit under test is first installed on the second fixed base. The power supply of the optical unit under test is connected to the power supply socket of the optical unit under test, the communication of the optical unit under test is connected to the communication socket of the optical unit under test, and the video output of the optical unit under test is connected to the video output socket of the optical unit under test.

[0011] According to some embodiments of this application, the base is provided with a power / communication input socket and a video output socket. The power / communication input socket and the video output socket are connected to a communication module, and the power / communication input socket is electrically connected to the electrically controlled rotating platform through the communication module.

[0012] In the above scheme, the power supply of the debugging device and the serial port of the debugging computer are connected to the power / communication input socket to supply power to the electrically controlled rotating platform and to debug the rotation speed of the electrically controlled rotating platform. The video display is connected to the video output socket to receive video images transmitted by the video output socket of the tested optical single unit.

[0013] According to some embodiments of this application, a power module is provided on the side of the base, and the power module is connected to a power / communication input socket to supply power to the communication module and the electrically controlled rotating platform.

[0014] According to some embodiments of this application, an image processing module is provided on the third fixed plate. The image processing module is electrically connected to the communication module. The image processing module is used to process the video information output by the test optical unit and generate a video image, which is then transmitted to the video display through the test optical unit's video output socket.

[0015] According to some embodiments of this application, the optical system backscan function debugging device further includes a gyroscope, which is used to sense the rotation speed of the electrically controlled rotating platform and generate rotation speed information. The gyroscope is electrically connected to the optical unit under test to transmit the rotation speed information to the optical unit under test.

[0016] According to some embodiments of this application, the first fixed base is provided with a gyroscope bracket, and the gyroscope is mounted on the gyroscope bracket.

[0017] According to some embodiments of this application, along a first direction, a pitch surface is formed on the side of the second fixed seat opposite to the first fixed seat, and the angle between the pitch surface and the horizontal plane is in the range of 0 to 90°, and the mounting part is disposed on the pitch surface.

[0018] Secondly, some embodiments of this application also provide a method for debugging the back-scanning function of an optical system, characterized in that the back-scanning function debugging device of the optical system applied in the first aspect includes the following steps:

[0019] Select the second fixing seat and fix the selected second fixing seat onto the first fixing seat;

[0020] Provide the test optical unit, and mount the test optical unit onto the second fixed base via the mounting part;

[0021] Parameters were adjusted by setting the rotation speed of the electronically controlled rotating platform and the reverse scanning function parameters of the tested optical unit on the computer, and ensuring that the electronically controlled rotating platform and the tested optical unit were in operation.

[0022] Stare at the video display, which shows the video image output by the subject's optical unit. Based on the crosshair effect of the collimator on the video display, determine the compliance of the reverse scanning function. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a front view of the optical system reverse scanning function debugging device in some embodiments of this application;

[0025] Figure 2 This is a top view of the optical system reverse scanning function debugging device in some embodiments of this application;

[0026] Figure 3 This is an electrical schematic diagram of the optical system backscan function debugging device in some embodiments of this application.

[0027] Icons: 1-First fixed base, 2-Electrically controlled rotating platform, 3-Power supply module, 4-Base, 5-Drive unit, 6-Conductive slip ring, 7-Gyroscope, 8-Gyroscope bracket, 9-Second fixed base, 10-Power / communication input socket, 11-Video output socket, 12-Communication module, 13-Power supply socket for the tested optical unit, 14-Communication socket for the tested optical unit, 15-Video output socket for the tested optical unit, 16-Image processing unit. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of the embodiments of this application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly placed when the product of this application is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0034] Please see Figure 1 and Figure 2 , Figure 1 This is a front view of the optical system backscan function debugging device in some embodiments of this application. Figure 2 This is a top view of the optical system backscan function debugging device in some embodiments of this application.

[0035] The optical system reverse scanning function debugging device includes a base 4, an electrically controlled rotating platform 2, a first fixed seat 1, and a second fixed seat 9. The base 4 is configured on the detection platform. The electrically controlled rotating platform 2 is disposed on the base 4. Along a first direction, the first fixed seat 1 is connected to the side of the electrically controlled rotating platform 2 opposite to the base 4, and the central axis of the first fixed seat 1 is collinear with the rotation axis of the electrically controlled rotating platform 2. Along the first direction, the second fixed seat 9 is disposed on the side of the first fixed seat 1 opposite to the electrically controlled rotating platform 2, and the second fixed seat 9 is eccentrically disposed on the first fixed seat 1.

[0036] The second fixing base 9 and the first fixing base 1 are respectively provided with mounting parts, which are used to detachably connect with the optical unit under test, so that the optical unit under test can be connected to one of the second fixing base 9 and the first fixing base 1.

[0037] In some embodiments, the tested optical unit can be selectively connected to the second mounting base 9 and the first mounting base 1 to enable the debugging of the non-rotating reverse scanning function.

[0038] In the above scheme, the optical system backscan function debugging device is used to test the performance of the optical unit's backscan function. The tested optical unit is mounted on the second fixed base 9 via a mounting part. The second fixed base 9 is eccentrically positioned on the first fixed base 1, so that it rotates eccentrically under the drive of the electrically controlled rotating platform 2. The tested optical unit outputs video to a video display. By setting the rotation speed of the electrically controlled rotating platform 2 and the backscan function parameters of the tested optical unit through a debugging computer, and combining this with the image clarity displayed on the video display, it is determined whether the backscan function requirements are met, thereby achieving the purpose of efficient backscan function debugging.

[0039] According to some embodiments of this application, the first fixing seat 1 is a straight plate structure, and the second fixing seat 9 protrudes from the first fixing seat 1 along the first direction; the mounting part includes a threaded hole and a screw corresponding to the threaded hole, and the tested optical unit is fixed to the second fixing seat 9 or the first fixing seat 1 by the screw.

[0040] According to some embodiments of this application, the optical system backscan function debugging device further includes a third fixing plate. The third fixing plate is disposed on one side of the first fixing base and in a second direction. The third fixing plate is adjacent to the second fixing base, and the first and second directions are perpendicular to each other. A communication module 12 is disposed on the third fixing plate. The communication module 12 is configured with a power supply socket 13, a communication socket 14, and a video output socket 15 for the tested optical unit. The power supply socket 13 is used to supply power to the tested optical unit. The communication socket 14 is used to connect the tested optical unit to the communication module 12 for communication. The video output socket 15 is used to connect to the tested optical unit to transmit the output video of the tested optical unit to a video display.

[0041] In the above scheme, before debugging the reverse scan function, the test optical unit is first installed on the second fixed base 9. The power supply of the test optical unit is connected to the power supply socket 13 of the test optical unit, the communication of the test optical unit is connected to the communication socket 14 of the test optical unit, and the video output of the test optical unit is connected to the video output socket 15 of the test optical unit.

[0042] According to some embodiments of this application, the base 4 is provided with a power / communication input socket 10 and a video output socket 11. The power / communication input socket 10 and the video output socket 11 are connected to the communication module 12, and the power / communication input socket 10 is electrically connected to the electrically controlled rotating platform 2 through the communication module 12.

[0043] In the above scheme, the power supply and serial port of the debugging device are connected to the power / communication input socket 10 to supply power to the electrically controlled rotating platform 2 and to debug the rotation speed of the electrically controlled rotating platform 2. The video display is connected to the video output socket 11 to receive video images transmitted by the test optical single-unit video output socket 15.

[0044] According to some embodiments of this application, a power module 3 is provided on the side of the base 4. The power module 3 is connected to the power / communication input socket 10 to supply power to the communication module 12 and the electrically controlled rotating platform 2.

[0045] According to some embodiments of this application, an image processing module is provided on the third fixed plate. The image processing module is electrically connected to the communication module 12. The image processing module is used to process the video information output by the test optical unit and generate a video image, which is then transmitted to the video display through the test optical unit video output socket 15.

[0046] According to some embodiments of this application, the optical system backscan function debugging device further includes a gyroscope 7, which is used to sense the rotation speed of the electrically controlled rotating platform 2 and generate rotation speed information. The gyroscope 7 is electrically connected to the optical unit under test to transmit the rotation speed information to the optical unit under test.

[0047] According to some embodiments of this application, the first fixed base 1 is provided with a gyroscope bracket 8, and the gyroscope 7 is disposed on the gyroscope bracket 8.

[0048] According to some embodiments of this application, along a first direction, the second fixing seat 9 has a pitch surface formed on the side opposite to the first fixing seat 1, and the angle between the pitch surface and the horizontal plane is in the range of 0 to 90°, and the mounting part is disposed on the pitch surface.

[0049] In some embodiments, the second mounting base 9 has various specifications, and the pitch angle of the second mounting base 9 is different for each specification. For example, the pitch angle of some specifications is 30°, and that of others is 60°.

[0050] Secondly, some embodiments of this application also provide a method for debugging the back-scanning function of an optical system, characterized in that the back-scanning function debugging device of the optical system applied in the first aspect includes the following steps:

[0051] Provide the test optical unit, and mount the test optical unit onto the first fixed base 1 or the second fixed base 9 via the mounting part;

[0052] Parameters were adjusted by setting the rotation speed of the electronically controlled rotating platform 2 and the reverse scanning function parameters of the tested optical unit on the computer, and the electronically controlled rotating platform 2 and the tested optical unit were put into operation.

[0053] Stare at the video display, which shows the video image output by the subject's optical unit. Based on the crosshair effect of the collimator on the video display, determine the compliance of the reverse scanning function.

[0054] Specifically, this application provides an optical system reverse scanning function debugging device, please refer to [link to relevant documentation]. Figures 1-3 , Figure 3 This is an electrical schematic diagram of the optical system backscan function debugging device in some embodiments of this application. Figure 3 The “subject single device” in this context is also known as the “subject optical single device”.

[0055] The optical system reverse scanning function debugging device includes a base 4, an electrically controlled rotating platform 2, a first fixed seat 1, a second fixed seat 9, and a third fixed seat.

[0056] The base 4 has 4-8 through holes at its bottom for mounting on different testing platforms. The first mounting base 1 can be fixed to the electrically controlled rotary platform 2 with screws. The electrically controlled rotary platform 2 is driven by a servo motor and has a conductive slip ring 6. A gyroscope 7 is mounted on the rotor end of the conductive slip ring 6 and is fixed by a gyroscope bracket 8, which is fixed to the base 4. The gyroscope 7 can detect the current rotational speed of the electrically controlled rotary platform 2 through the conductive slip ring 6.

[0057] The electrically controlled rotating platform 2 can be fixed to the base 4 with screws. The base 4 is fixed with the power module 3, the drive unit 5 (servo motor), the power / communication input socket 10 and the video output socket 11 by screws.

[0058] The communication module 12 and the image processing unit 16 are fixed to the third mounting base with screws. The test optical unit power supply socket 13, the test optical unit communication socket 14 and the test optical unit video output socket 15 can be fixed to the communication module 12 with screws.

[0059] By changing the specifications of the second mounting bracket 9, different pitch planes can be selected, thereby changing different adjustment pitch angles. Before making changes, the second mounting bracket 9 can be fixed to the first mounting bracket 1 with screws, and then the optical unit under test can be fixed to the second mounting bracket 9 with screws.

[0060] Before the reverse scanning function is debugged, the tested optical unit is fixed to the first fixed base 1 or the second fixed base 9.

[0061] Taking the device fixed to the first mounting base 1 as an example, the power supply of the tested optical unit is connected to the power supply socket 13, the communication of the tested optical unit is connected to the communication socket 14, and the video output of the tested optical unit is connected to the video output socket 15. The power supply (power module 3) of the debugging device and the serial port of the debugging computer are connected to the power / communication input socket 10, and the video display is connected to the video output socket 11.

[0062] Place two collimators at a 90° angle to each other near the reverse scanning function debugging device to simulate a distant target. Adjust the height of the collimators so that the crosshairs of both collimators can be imaged in the center of the field of view. The clarity of the crosshairs in the center of the field of view can be used to determine the debugging effect of the optical single-machine reverse scanning function.

[0063] The rotation speed of the electronically controlled rotating platform 2 and the backscan function parameters of the tested optical unit are set via a computer. Then, the power supply is turned on, and the backscan function debugging device and the tested optical unit begin operation. The gyroscope 7 transmits the detected rotation speed of the electronically controlled rotating platform 2 to the tested optical unit. The debugging personnel observe the effect of the collimator crosshairs displayed on the video monitor to determine the compliance of the backscan function. A clear image indicates that the backscan function is normal. Otherwise, the rotation speed of the electronically controlled rotating platform 2 is reduced, or the parameters of the fast-reflecting mirror of the tested optical unit are modified to meet the requirements of the backscan function.

[0064] After the test optical unit completes the reverse scanning function debugging in one direction, it is removed. Then, the second fixing base 9 is fixed on the first fixing base 1, and the test optical unit is installed. The reverse scanning function debugging in the other direction can be completed by following the above steps.

[0065] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for adjusting the reverse scanning function of an optical system, characterized in that, include: The base is configured and set on the testing platform; An electrically controlled rotating platform is mounted on the base. A first fixed base is connected to the side of the electrically controlled rotating platform away from the base along a first direction, and the central axis of the first fixed base is collinear with the rotation axis of the electrically controlled rotating platform. The second fixed seat is located along the first direction and is disposed on the side of the first fixed seat opposite to the electrically controlled rotating platform, and the second fixed seat is eccentrically disposed on the first fixed seat; The second fixing base and the first fixing base are respectively provided with mounting parts, which are used to detachably connect to the optical unit under test, so that the optical unit under test can be connected to one of the second fixing base and the first fixing base.

2. The optical system reverse scanning function debugging device according to claim 1, characterized in that, The first fixing base is a straight plate structure, and the second fixing base protrudes from the first fixing base along the first direction; the mounting part includes a threaded hole and a screw corresponding to the threaded hole, and the tested optical single device is fixed to the second fixing base or the first fixing base by the screw.

3. The optical system reverse scanning function debugging device according to claim 1, characterized in that, The optical system reverse scanning function debugging device also includes a third fixing plate, which is disposed on one side of the first fixing seat and in the second direction. The third fixing plate is adjacent to the second fixing seat, and the first direction and the second direction are perpendicular to each other. A communication module is provided on the third fixed plate. The communication module is configured with a power supply socket for the tested optical unit, a communication socket for the tested optical unit, and a video output socket for the tested optical unit. The power supply socket for the tested optical unit is used to supply power to the tested optical unit. The communication socket for the tested optical unit is used to connect the tested optical unit to the communication module. The video output socket for the tested optical unit is used to connect to the tested optical unit to transmit the output video of the tested optical unit to a video display.

4. The optical system reverse scanning function debugging device according to claim 3, characterized in that, The base is provided with a power / communication input socket and a video output socket. The power / communication input socket and the video output socket are connected to the communication module, and the power / communication input socket is electrically connected to the electrically controlled rotating platform through the communication module.

5. The optical system reverse scanning function debugging device according to claim 4, characterized in that, A power module is provided on the side of the base. The power module is connected to the power / communication input socket to supply power to the communication module and the electrically controlled rotating platform.

6. The optical system reverse scanning function debugging device according to claim 4, characterized in that, An image processing module is provided on the third fixed plate. The image processing module is electrically connected to the communication module. The image processing module is used to process the video information output by the test optical unit and generate a video image, which is then transmitted to the video display through the test optical unit's video output socket.

7. The optical system reverse scanning function debugging device according to claim 4, characterized in that, The optical system backscan function debugging device also includes a gyroscope, which is used to sense the rotation speed of the electronically controlled rotating platform and generate rotation speed information. The gyroscope is electrically connected to the optical unit under test to transmit the rotation speed information to the optical unit under test.

8. The optical system reverse scanning function debugging device according to claim 7, characterized in that, The first fixed base is provided with a gyroscope bracket, and the gyroscope is mounted on the gyroscope bracket.

9. The optical system reverse scanning function debugging device according to any one of claims 1-8, characterized in that, Along the first direction, the second fixing seat has a pitch surface on the side opposite to the first fixing seat, and the angle between the pitch surface and the horizontal plane is in the range of 0 to 90°, and the mounting part is disposed on the pitch surface.

10. A method for adjusting the backscan function of an optical system, characterized in that, The method applied to the optical system reverse scanning function debugging device of claim 1 includes the following steps: Provide a test optical unit, and mount the test optical unit onto the first fixed base or the second fixed base via a mounting part; The debugging parameters are set by adjusting the computer to set the rotation speed of the electronically controlled rotating platform and the reverse scanning function parameters of the optical unit under test, and the electronically controlled rotating platform and the optical unit under test are working. Staring at a video display showing the video image output by the subject's optical unit, the compliance of the reverse scanning function is determined based on the crosshair effect of the collimator on the video display.

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