Debugging device for laser ranging module

Abstract

The application provides a debugging device of a laser ranging module, comprising: a test table; a laser emission module arranged on one side of the test table, and a display card movably arranged on an emission end of the laser emission module; a reflection module arranged on the other side of the test table; and a workpiece table arranged on the same side of the laser emission module and slidably arranged on the test table in a direction close to or away from the reflection module, wherein one side of the workpiece table close to the reflection module is movably arranged with a display panel, the workpiece table is used for mounting a shooting device, the shooting device comprises the laser ranging module, and the laser ranging module can adjust an installation angle through an adjusting mechanism; the reflection module is used for reflecting laser beams emitted by the laser emission module to the display panel to form a first light spot, and reflecting laser beams emitted by the laser ranging module to the display card to form a second light spot. The debugging device of the application simulates a theoretical infinite distance debugging environment through optical conversion, and simplifies a laser debugging process.

Description

Technical Field

[0001] This application relates to the field of laser debugging device technology, specifically to a debugging device for a laser ranging module. Background Technology

[0002] Laser rangefinder modules typically operate within imaging devices, such as the gimbal camera on a drone. To ensure more accurate perception of target location and distance information, the mounting angle of the laser rangefinder module within the imaging device usually needs to be adjusted so that the laser beam is nearly parallel to the optical axis of the imaging device's lens. This prevents measurement errors caused by deviations in the laser's emission angle from being amplified.

[0003] In existing technologies, laser adjustment of laser ranging modules usually requires testing in actual scenarios. There is a lack of corresponding debugging devices, and once the test distance is extended, the entire test process becomes very complicated.

[0004] Therefore, it is particularly important to provide a debugging device for laser ranging modules. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a debugging device for a laser ranging module.

[0006] This application proposes a debugging device for a laser ranging module, comprising: Test bench; A laser emitting module is located on one side of the test bench and is used to emit a laser beam. A display card is movably mounted on the emitting end of the laser emitting module. A reflection module, located on the other side of the test bench, is used to reflect the laser beam; The workpiece stage is disposed on the same side as the laser emitting module and slides on the test stage in a direction close to or away from the reflective module; The workpiece stage has a display panel movably disposed on the side near the reflective module. The workpiece stage is used to mount the shooting equipment, which includes the laser ranging module. The laser ranging module can be adjusted for its mounting angle via an adjustment mechanism. The reflection module is used to reflect the laser beam emitted by the laser emitting module onto the display panel to form a first light spot, and to reflect the laser beam emitted by the laser ranging module onto the display card to form a second light spot.

[0007] Preferably, the reflection module includes a first mounting base, a concave mirror assembly, and an adjustment assembly. The concave mirror assembly is disposed on the first mounting base, and the adjustment assembly is used to adjust the tilt angle of the concave mirror assembly.

[0008] Preferably, the adjusting assembly includes an elastic element and an adjusting screw; The elastic element is connected at both ends between the first mounting base and the concave mirror assembly. At least one end of the first mounting base is provided with a mounting hole. The concave mirror assembly is provided with a mating hole that mates with the mounting hole. One end of the adjusting screw is threaded through the mounting hole and abuts against the mating hole.

[0009] Preferably, one side of the display panel is hinged to the workpiece stage, and the display panel is flipped up and down relative to the workpiece stage.

[0010] Preferably, the hinge side of the display panel is provided with a mounting plate, the mounting plate is provided with a first magnetic attractor, and the workpiece stage is provided with a second magnetic attractor that magnetically engages with the first magnetic attractor.

[0011] Preferably, the workpiece stage further includes a positioning fixture for mounting the imaging device. The workpiece stage is provided with a positioning post, and the positioning fixture has a positioning notch that cooperates with the positioning post.

[0012] Preferably, the laser emitting module includes a laser component and a second mounting base; The laser component is mounted on the second mounting base, which has a positioning slot. One end of the display card is movably inserted into the positioning slot.

[0013] Preferably, the bottom of the workpiece stage is provided with a slide block, and the test stage is provided with a guide rail. The workpiece stage slides back and forth along the direction of approaching or moving away from the reflective module through the cooperation of the slide block and the guide rail.

[0014] Compared with the prior art, the beneficial results of this application are as follows: During the optical path adjustment stage, a laser beam is emitted by the laser emitting module, and the reflective module reflects the laser beam onto the display panel to form the first light spot. At this time, with the help of an external lens and the infrared filter inside the lens removed, the first light spot can be captured on the display panel through the lens. Then, the workpiece stage moves back and forth on the guide rail, and the tilt angle of the reflective module is adjusted by the adjustment component until the first light spot on the display panel does not shift or change in size. At this time, the laser reflected by the reflective module and the display panel are infinitely close to parallel, and the optical path adjustment is successful.

[0015] During the laser adjustment stage, a laser beam is emitted through the laser ranging module, and the reflection module reflects the laser beam onto the display card to form a second spot. At this time, the lens of the shooting device can capture the second spot and image it on the display device. Then, the installation angle of the laser ranging module is adjusted by the adjustment mechanism inside the shooting device until the second spot coincides with the center point of the displayed image. At this time, the laser beam emitted by the laser ranging module and the center of the optical axis of the lens of the shooting device are infinitely close to parallel, and the laser adjustment is successful.

[0016] The debugging device of this application simplifies the laser debugging process by simulating the theoretical infinite distance debugging environment through optical conversion. The installation angle of the laser ranging module can be calibrated through the debugging device of this application, which greatly reduces the range of laser dispersion and avoids the laser ranging error being infinitely amplified due to the deviation of the laser emission angle, thereby improving the measurement accuracy. Attached Figure Description

[0017] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of this application. Other embodiments and many anticipated advantages of these embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0018] Figure 1 This is a schematic diagram of the debugging device for a laser ranging module in the optical path adjustment stage according to a specific embodiment of this application; Figure 2 This is a schematic diagram of the debugging device structure of a laser ranging module in the laser adjustment stage according to a specific embodiment of this application; Figure 3 This is a schematic diagram of the structure of a reflection module according to a specific embodiment of this application; Figure 4 This is an exploded structural diagram of a laser emitting module according to a specific embodiment of this application; Figure 5 This is an exploded structural diagram of a workpiece stage according to a specific embodiment of this application.

[0019] The meaning of each number in the diagram: 100. Debugging device for laser ranging module; 10. Test bench; 11. Guide rail; 20. Laser emitting module; 21. Second mounting base; 211. Positioning slot; 22. Laser assembly; 23. Display card; 30. Reflection module; 31. First mounting base; 311. Mounting hole; 32. Concave mirror assembly; 321. Mating hole; 33. Adjustment assembly; 331. Elastic element; 332. Adjustment screw; 40. Workpiece stage; 41. Slide; 42. Positioning fixture; 421. Positioning notch; 43. Positioning post; 44. Display panel; 441. Mounting plate; 442. First magnetic chuck; 45. Second magnetic chuck; 200. Shooting equipment; 201. Laser ranging module; 202. Thermal imaging module; 203. Fixed-focus lens module; 204. Zoom lens module. Detailed Implementation

[0020] In the following detailed description, reference is made to the accompanying drawings, which form part of the detailed description and illustrate illustrative specific embodiments in which the present application may be practiced. In this regard, directional terms such as “top,” “bottom,” “left,” “right,” “up,” “down,” etc., are used with reference to the orientation of the described figures. Because components of the embodiments can be positioned in several different orientations, directional terms are used for illustrative purposes and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present application. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the present application is defined by the appended claims.

[0021] This application proposes a debugging device for a laser ranging module. The specific structure of the debugging device for the laser ranging module according to an embodiment of this application will be described below with reference to the accompanying drawings.

[0022] Please see Figure 1 and Figure 2 The debugging device 100 for the laser ranging module includes a test platform 10 and a laser emitting module 20, a reflection module 30, and a workpiece stage 40 disposed on the test platform 10. The laser emitting module 20 and the workpiece stage 40 are disposed on the same side, while the reflection module 30 is disposed on the opposite side.

[0023] For details, please refer to Figure 3 The reflection module 30 is fixed to the test stage 10 by a mounting base. The reflection module 30 includes a first mounting base 31, a concave mirror assembly 32, and an adjustment assembly 33. The concave mirror assembly 32 is mounted on the first mounting base 31 and is used to reflect the laser beam. The adjustment assembly 33 is used to adjust the mounting tilt angle of the concave mirror assembly 32 on the first mounting base 31.

[0024] In one specific embodiment, the adjusting assembly 33 includes an elastic element 331 and an adjusting screw 332. The elastic element 331 is connected at both ends between the first mounting base 31 and the concave mirror assembly 32. At least one end of the first mounting base 31 has a mounting hole 311, and the concave mirror assembly 32 has a mating hole 321 that mates with the mounting hole 311. One end of the adjusting screw 332 is threaded through the mounting hole 311 and abuts against the mating hole 321. By turning the adjusting screw 332, the mounting tilt angle of the concave mirror assembly 32 on the first mounting base 31 can be adjusted.

[0025] In this embodiment, a plurality of elastic elements 331 are spaced apart between the first mounting base 31 and the concave mirror assembly 32 to improve connection stability.

[0026] In this embodiment, the elastic element 331 is a spring. In other embodiments, the elastic element may also be made of other elastic materials, which is not limited here.

[0027] In this embodiment, the connecting end of the first mounting base 31 is a 1 / 4 arc structure. Mounting holes 311 are provided at both the upper and lower ends of the first mounting base 31. The angles of the upper and lower ends of the concave mirror assembly 32 can be adjusted by two adjusting screws 332 respectively.

[0028] Please see Figure 4 The laser emitting module 20 is also fixed on the test stand 10 by a mounting base. The laser emitting module 20 includes a second mounting base 21, a laser component 22, and a display card 23. The laser component 22 is mounted on the second mounting base 21 and is used to emit a laser beam. A positioning groove 211 is provided on the second mounting base 21 located at the emitting end of the laser component 22, and the lower end of the display card 23 is movably inserted into the positioning groove 211.

[0029] During the optical path adjustment stage, when the laser component 22 emits a laser beam, the display card 23 can be pulled out of the positioning slot 211 or removed so that the laser beam can be emitted. During the laser adjustment stage, the display card 23 can be inserted into the positioning slot 211, and the display card 23 can receive the laser beam reflected by the concave mirror component 32 and form a second light spot.

[0030] In this embodiment, the laser component 22 is an infrared lamp laser component, and the display card 23 is an infrared display card.

[0031] Please see Figure 2 and Figure 5The workpiece stage 40 has a slide 41 at its bottom and a guide rail 11 on the test stage 10. The workpiece stage 40 slides back and forth along the direction of approaching or moving away from the reflective module 30 through the cooperation of the slide 41 and the guide rail 11. The workpiece stage 40 also includes a positioning fixture 42. Multiple positioning posts 43 are provided on the inner sidewalls of both sides of the workpiece stage 40. The positioning fixture 42 has positioning notches 421 that cooperate with the positioning posts 43. The positioning fixture 42 is used to install the imaging device 200, which integrates a laser ranging module 201. The imaging device 200 also has an adjustment mechanism (not shown in the figure) inside, through which the installation angle of the laser ranging module 201 can be adjusted.

[0032] A display panel 44 is hinged to the side of the workpiece stage 40 near the reflective module 30, and the display panel 44 is flipped up and down relative to the workpiece stage 40. A mounting plate 441 is provided on the hinged side of the display panel 44, and a first magnetic attractor 442 is provided on the mounting plate 441. A second magnetic attractor 45 is provided on the workpiece stage 40 to magnetically engage with the first magnetic attractor 442.

[0033] During the optical path adjustment stage, when the laser component 22 emits a laser beam, the display panel 44 can be flipped upwards. The display panel 44 is fixed by the magnetic attraction of the first magnetic member 442 and the second magnetic member 45. At this time, the display panel 44 can receive the laser beam reflected by the concave mirror component 32. Then, with the help of an external lens, the infrared filter inside the lens is removed, and the first light spot can be captured on the display panel 44 through the lens.

[0034] During the laser adjustment phase, the display panel 44 can be flipped downwards. At this time, a laser beam is emitted through the laser ranging module 201, and the concave mirror assembly 32 reflects the laser beam onto the display card 23. The second light spot can be captured on the display card 23 by the lens of the imaging device 200 and imaged on an external display device.

[0035] In this embodiment, referring to the specific structure of the adjustment component 33, the specific structure of the adjustment mechanism can also be implemented by an adjustment screw, which adjusts the installation angle of the laser ranging module by turning the adjustment screw. Those skilled in the art know how this structure is implemented, therefore, the specific structure of the adjustment mechanism will not be described in detail here.

[0036] In this embodiment, both the first magnetic attractor 442 and the second magnetic attractor 45 are magnets.

[0037] In this embodiment, the shooting device 200 is a gimbal camera mounted on a drone. The shooting device 200 integrates a laser ranging module 201, a thermal imaging module 202, a fixed-focus lens module 203, and a zoom lens module 204.

[0038] It should be noted that the laser emitting module 20, the reflecting module 30, and the workpiece stage 40 in this embodiment can have a fixed installation height and a fixed installation angle, or they can be adjusted by an auxiliary structure. This auxiliary structure achieves height adjustment through the cooperation of locking screws and multiple positioning holes on the telescopic rod, and angle adjustment through the tightening cooperation of the locking screws and the telescopic rod; these details will not be elaborated further here.

[0039] Based on the aforementioned debugging device 100 for a laser ranging module, this application also proposes a debugging method for a laser ranging module. The method includes the following steps: Step 1: Optical path adjustment stage. Remove the display card 23, flip the display panel 44 upward, control the laser component 22 to emit a laser beam, and the concave mirror component 32 reflects the laser beam onto the display panel 44 to form the first light spot. At this time, with the help of an external lens, remove the infrared filter inside the lens, and the first light spot can be captured on the display panel 44 through the lens. Then, move the workpiece stage 40 back and forth on the guide rail 11, and adjust the tilt angle of the concave mirror component 32 by adjusting the component 33 until the first light spot is always at the center point of the display panel 44 without any shift or change in size. At this time, the laser reflected by the concave mirror component 32 and the display panel 44 are infinitely close to parallel, and the optical path adjustment is successful.

[0040] Step 2: Laser adjustment stage. Insert the display card 23, flip the display panel 44 downwards, and control the laser ranging module 201 to emit a laser beam. The concave mirror assembly 32 reflects the laser beam onto the display card 23 to form a second light spot. At this time, the fixed-focus lens 203 and zoom lens 204 of the shooting device 200 can capture the second light spot on the display card 23 and image it on the external display device (drone remote controller). Then, adjust the installation angle of the laser ranging module 201 through the adjustment mechanism inside the shooting device 200 until the second light spot coincides with the center point of the image on the display device. At this time, the laser beam emitted by the laser ranging module 201 is infinitely close to parallel with the center of the optical axis of the lens of the shooting device 200, and the laser adjustment is successful.

[0041] By using the aforementioned debugging device and method, and simulating the theoretically infinite distance debugging environment through optical conversion, the laser debugging process is simplified. The installation angle of the laser ranging module 201 can be calibrated, which greatly reduces the range of laser dispersion and avoids the laser ranging error being infinitely amplified due to the deviation of the laser emission angle, thereby improving the measurement accuracy.

[0042] It is evident that those skilled in the art can make various modifications and alterations to the embodiments of this application without departing from the spirit and scope of this application. In this manner, this application also aims to cover such modifications and alterations if they fall within the scope of the claims and their equivalents. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are described in mutually different dependent claims does not indicate that a combination of these measures cannot be used for profit. Any reference numerals in the claims should not be considered limiting in scope.

Claims

1. A debugging device for a laser ranging module, characterized in that, include: Test bench; A laser emitting module is located on one side of the test bench and is used to emit a laser beam. A display card is movably mounted on the emitting end of the laser emitting module. A reflection module, located on the other side of the test bench, is used to reflect the laser beam; The workpiece stage is disposed on the same side as the laser emitting module and slides on the test stage in a direction close to or away from the reflective module; The workpiece stage has a display panel movably disposed on the side near the reflective module. The workpiece stage is used to install a shooting device, which includes the laser ranging module. The laser ranging module can be adjusted at the installation angle via an adjustment mechanism. The reflection module is used to reflect the laser beam emitted by the laser emitting module onto the display panel to form a first light spot, and to reflect the laser beam emitted by the laser ranging module onto the display card to form a second light spot.

2. The debugging device for the laser ranging module according to claim 1, characterized in that, The reflection module includes a first mounting base, a concave mirror assembly, and an adjustment assembly. The concave mirror assembly is disposed on the first mounting base, and the adjustment assembly is used to adjust the tilt angle of the concave mirror assembly.

3. The debugging device for the laser ranging module according to claim 2, characterized in that, The adjustment assembly includes an elastic element and an adjustment screw; The elastic element is connected at both ends between the first mounting base and the concave mirror assembly. At least one end of the first mounting base is provided with a mounting hole. The concave mirror assembly is provided with a mating hole that mates with the mounting hole. One end of the adjusting screw is threaded through the mounting hole and abuts against the mating hole.

4. The debugging device for the laser ranging module according to claim 1, characterized in that, One side of the display panel is hinged to the workpiece stage, and the display panel is flipped up and down relative to the workpiece stage.

5. The debugging device for the laser ranging module according to claim 4, characterized in that, A mounting plate is provided on the hinge side of the display panel, and a first magnetic attractor is provided on the mounting plate. A second magnetic attractor is provided on the workpiece stage to magnetically engage with the first magnetic attractor.

6. The debugging device for the laser ranging module according to claim 1, characterized in that, The workpiece stage also includes a positioning fixture for mounting the shooting device. The workpiece stage is provided with a positioning post, and the positioning fixture has a positioning notch that cooperates with the positioning post.

7. The debugging device for the laser ranging module according to claim 1, characterized in that, The laser emitting module includes a laser component and a second mounting base; The laser component is mounted on the second mounting base, which has a positioning slot. One end of the display card is movably inserted into the positioning slot.

8. The debugging device for the laser ranging module according to claim 1, characterized in that, The bottom of the workpiece stage is provided with a slide block, and the test stage is provided with a guide rail. The workpiece stage slides back and forth along the direction of approaching or moving away from the reflective module through the cooperation of the slide block and the guide rail.

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