A laser range-gated imaging module adjustment bracket

Abstract

The utility model provides a kind of laser distance gate imaging module adjusting support, including controller, pedestal and the rotating unit, fixed seat and camera successively installed above it, fixed seat side is connected to mounting plate, angle pitch adjusting unit for fine tuning laser emission position is equipped on mounting plate, and laser emission position and the lens of camera are set same direction, pedestal below is also equipped with for adjusting the height of camera lifting unit, wherein lifting unit and rotating unit are signal connected to controller respectively. The application is realized by rotating unit, lifting unit and pitch adjusting unit cooperation, realizes the mode of control drive+manual fine tuning, realizes the accurate adjustment of laser distance gate imaging module in height, horizontal angle, pitch angle and other multi-freedom degree, ensure that laser emission and receiving light path are aligned, improve imaging quality and system stability, applicable to military, security, surveying and mapping and other fields night or bad environment observation.

Description

Technical Field

[0001] This utility model belongs to the field of laser distance gating imaging technology, and in particular relates to an adjustment bracket for a laser distance gating imaging module. Background Technology

[0002] Laser distance-gated imaging module adjustment brackets are commonly used in underwater exploration, industrial inspection, laser engraving, and other scenarios, especially for nighttime or harsh environment observation in military, security, and surveying fields. Their core requirement is to ensure precise optical axis matching and imaging stability. However, existing brackets have several problems in terms of adjustment accuracy, structural stability, and adaptability, specifically: First, most brackets use a front flange and gasket adjustment method, which cannot meet the high-precision optical axis matching requirements of laser distance-gated imaging. Furthermore, each adjustment requires calculating the gasket thickness based on the imaging distance, making the operation cumbersome and prone to errors. Second, some traditional brackets require adjusting four screws to adjust the angle, making the adjustment difficult to control. Moreover, the lack of a contact limiting structure at the top of the lens tube makes it prone to misalignment during adjustment, further reducing the accuracy of angle adjustment and affecting the overlap accuracy of the laser emission and reception optical axes. Third, large brackets are inconvenient to move, relying mainly on manual or equipment handling, causing numerous inconveniences for measurement. Utility Model Content

[0003] In view of this, the present invention aims to solve at least one of the above-mentioned technical problems and proposes a laser distance gating imaging module adjustment bracket. This application realizes the control drive + manual fine adjustment method through the cooperation of a rotation unit, a lifting unit and a pitch adjustment unit, so as to achieve precise adjustment of the laser distance gating imaging module in multiple degrees of freedom such as height, horizontal angle and pitch angle, to ensure the alignment of the laser emission and receiving optical paths, improve imaging quality and system stability, and is suitable for nighttime or harsh environment observation in military, security, surveying and mapping fields.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A laser distance-gated imaging module adjustment bracket includes a controller, a base, and a rotating unit, a fixed base, and a camera installed sequentially on top of the base. One side of the fixed base is connected to a mounting plate. The mounting plate is provided with an angle pitch adjustment unit for fine-tuning the laser emission position, and the laser emission position is set in the same direction as the camera lens. Below the base, there is also a lifting unit for adjusting the height of the camera. The lifting unit and the rotating unit are respectively signal-connected to the controller.

[0006] Furthermore, the device also includes a workbench, which comprises a housing and casters mounted below it. A handle is also mounted on the side panel of the housing, and a base is placed on top of the housing.

[0007] Furthermore, a laser is also installed on the base, and the laser's emitting end is mounted on the pitch adjustment unit.

[0008] Furthermore, the rotating unit is a rotary motor, and a connecting plate is provided between the rotating unit and the fixed base. The connecting plate is provided with several cable management holes for guiding and fixing power lines and signal lines.

[0009] Furthermore, the pitch adjustment unit includes a base connected to a mounting plate. A first adjustment column and a horizontal adjustment section are mounted on the base. A second adjustment column and a pitch adjustment section are mounted on one side of the horizontal adjustment section. A clamp is also mounted on one side of the pitch adjustment section. The clamp is used for detachably mounting the transmitter. One end of the transmitter is inserted into the movable hole of the mounting plate. The first adjustment column is a turbine, and the horizontal adjustment section has a screw and nut mating structure or a gear and rack mating structure. The second adjustment column is a turbine, and the pitch adjustment section has a turbine structure.

[0010] Furthermore, the lifting unit includes an electric push rod, the fixed end of which is connected to the bottom plate of the housing, and the movable end is fixedly connected to the base. A support frame is also fixedly installed below the base, and a slider is fixedly installed on one side of the support frame. The slider is slidably connected to the guide rail installed on the side plate, and the lifting push rod is signal-connected to the controller.

[0011] Furthermore, the mounting base is a rectangular frame structure, with the camera body fixedly mounted on top, a mounting plate connected to one side of the mounting base, and the lens passing through the mounting plate.

[0012] Furthermore, the mounting plate is a plate-shaped structure, with a lens hole at the center for the lens to pass through, and several movable holes for the transmitter to pass through and several mounting holes for mounting the pitch adjustment unit around the lens hole.

[0013] Furthermore, the number of movable holes is four, and they are evenly distributed in the vertical and horizontal directions, with the mounting holes located between two adjacent movable holes.

[0014] Furthermore, the number of movable holes is eight, and they are evenly distributed along the circumference of the lens hole, with two movable holes distributed in the horizontal direction.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] (1) This application achieves a control drive + manual fine adjustment method by using a rotation unit, lifting unit and pitch adjustment unit to realize precise adjustment of the laser distance gate imaging module in multiple degrees of freedom such as height, horizontal angle and pitch angle, ensuring the alignment of the laser emission and receiving optical paths, improving imaging quality and system stability, and is suitable for nighttime or harsh environment observation in military, security, surveying and mapping fields.

[0017] (2) The workbench set up in this application can not only protect the lifting unit, but also make the adjustment bracket move as a whole, which greatly improves the work efficiency and the convenience of measurement. Attached Figure Description

[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0019] Figure 1 This is a schematic diagram of the laser distance gating imaging module adjustment bracket according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the lifting unit described in an embodiment of the present utility model. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the lifting unit described in an embodiment of the present utility model. Figure 2 ;

[0022] Figure 4 for Figure 3 Enlarged view of section A;

[0023] Figure 5 This is a schematic diagram of one embodiment of the mounting plate described in this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Base; 2-Workbench; 21-Box; 22-Side plate; 23-Handle; 24-Universal wheel; 3-Laser; 31-Emitting end; 4-Rotating unit; 5-Connecting plate; 6-Lifting unit; 61-Lifting motor; 62-Support frame; 63-Guide rail; 64-Slider; 65-Connecting rod; 7-Mounting plate; 71-Lens hole; 72-Movable hole; 73-Mounting hole; 8-Pitch adjustment unit; 81-Base; 82-Adjustment column 1; 83-Horizontal adjustment section; 84-Adjustment column 2; 85-Pitch adjustment section; 86-Clamp; 9-Fixed seat; 10-Camera; 101-Body; 102-Lens. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] A laser distance-gated imaging module adjustment bracket, such as Figures 1 to 5 As shown, the system includes a controller, a base 1, and a rotating unit 4, a fixed base 9, and a camera 10 installed on top of it in sequence. One side of the fixed base 9 is connected to a mounting plate 7. An angle pitch adjustment unit 8 for fine-tuning the laser emission position is installed on the mounting plate 7, and the laser emission position is set in the same direction as the camera lens. Below the base 1, there is also a lifting unit 6 for adjusting the height of the camera. The lifting unit 6 and the rotating unit 4 are connected to the controller via distributed signals.

[0031] In some embodiments, the controller is a PLC, preferably an S7-200 SMART.

[0032] In some embodiments, the base 1 is a rectangular plate with several standard through holes, which facilitates the connection of the base with other components by bolts, avoiding the need to drill holes during installation.

[0033] In some embodiments, the base 1 is placed on the workbench 2.

[0034] The workbench 2 includes a housing 21 and casters 24 mounted below it, which facilitates moving the adjustment bracket to the required position. For easy movement, handles 23 are also bolted to the side plate 22 of the housing 21.

[0035] Preferably, there are two handles 23, which are installed on two opposite side plates 22 of the housing 21.

[0036] In some embodiments, a base 1 is placed above the housing 21, a lifting unit 6 is fixedly installed below the base 1, a rotating unit 4 is fixedly installed above the base 1, a fixed seat 9 is mounted on the rotating unit 4 via a connecting plate, a camera 10 is mounted above the fixed seat 9, and a mounting plate 7 is fixedly connected to one side. A pitch adjustment unit 8 is mounted on the mounting plate 7, and a laser emitter 31 for emitting laser light is also mounted on the pitch adjustment unit 8. The relative positions of the laser emitter 31 and the camera 102 can be adjusted.

[0037] In some embodiments, the laser 3 is mounted on the base 1, and the emitting end 31 of the laser 3 is mounted on the pitch adjustment unit 8, so that the angle of the emitting end 31 can be adjusted.

[0038] The rotating unit 4 is used to drive the components above it to rotate 360° or a defined angle in the horizontal plane, thereby expanding the observation range. In some embodiments, the rotating unit 4 is a rotary motor or a worm gear driven by an angle. Preferably, this application uses a rotary motor of model FD-300L. The rotary motor signal is connected to the controller. Since both the rotary motor and the controller of this model are existing devices, their connection information is common knowledge. The main improvement of this application lies in the improvement of the mechanical structure, so the detailed connection relationship between the two will not be described in detail.

[0039] In some embodiments, the connecting plate 5 is provided with several cable management holes, which are used to guide and fix power lines, signal lines, etc., to prevent cables from interfering with moving parts. This makes the wiring path of the laser distance gating imaging module adjustment bracket more reasonable and prevents malfunctions caused by cable tangling or pulling.

[0040] The lifting unit 6 is used to drive the components above it to move up and down for height adjustment, achieving precise positioning to adapt to different installation environments or observation needs. In one embodiment, the lifting unit 6 is a drive mechanism such as a worm gear, motor, or electric push rod.

[0041] In some embodiments, the lifting unit 6 includes an electric push rod 61, a support frame 62, a guide rail 63, a slider 64, and a connecting rod 65. The fixed end of the electric push rod 61 is connected to the bottom plate of the housing 2, and the movable end is fixedly connected to the base 1. To increase the stability of the connecting rod 65, a support frame 62 is also fixedly installed below the base 1. A slider 63 is fixedly installed on one side of the support frame 62. The slider 64 is slidably connected to the guide rail 63 installed on the side plate 22. The lifting push rod 61 is signal-connected to the controller. Preferably, the electric push rod 61 is an LX712 industrial push rod. Since the electric push rod and controller of this model are existing devices, and their connection information is common knowledge, the main improvement of this application lies in the improvement of the mechanical structure. Therefore, the detailed connection relationship between the two is not described in detail.

[0042] The adjustment process of the lifting unit is as follows:

[0043] When the controller controls the extension of the lifting push rod 61, since the base 1 is placed on the housing 21, the movable end of the lifting push rod 61 pushes the base 1 and the components above it to the set position. At this time, the support frame 62 will move upward with the base 1, and the slider 63 and the guide rail 64 will move relative to each other. This can effectively support the upward movement of the base 1 and also limit the base 1, so that the lifting push rod 61 keeps moving vertically up and down, maintaining the stability of the entire lifting process.

[0044] In one embodiment, the mounting base 9 is a rectangular frame structure, with the main body 101 fixedly mounted on top. A mounting plate 7 is connected to one side of the mounting base 9, allowing the lens 102 of the camera 10 to pass through the mounting plate 7 and be aligned with the transmitter 31. The entire camera body can be placed on the mounting base 9, ensuring the stability of the main body 101. Simultaneously, the frame structure facilitates heat dissipation, thereby ensuring image quality.

[0045] The mounting plate 7 has a plate-like structure. At the center of the mounting plate 7, there is a lens hole 71 for the lens 102 of the camera 10 to pass through. Around the lens hole 71, there are several movable holes 72 for the transmitter 31 to pass through and several mounting holes 73 for the pitch adjustment unit 8 to be installed. This facilitates installation and alignment, and serves as a limit and error prevention function.

[0046] In one embodiment, there are four movable holes 72, evenly distributed in the vertical and horizontal directions. The movable holes 72 are used to pass through the transmitter 31, and the transmitter 31 can move within the movable holes 72. The four movable holes 72 allow the transmitter 31 to be adjusted in four directions: up, down, left, and right. The mounting hole 73 is located between two adjacent movable holes 72 and is used to mount the pitch adjustment unit 8.

[0047] In another embodiment, there are eight movable holes 72, which are evenly distributed around the lens hole 71. Two of the movable holes are distributed in the horizontal direction, so that the movable holes 72 can pass through the transmitter 31 and the transmitter 31 can move in the movable holes 72. This allows the transmitter 31 to emit laser beams not only in the vertical and horizontal directions, but also at four angles above and below, resulting in a wider range of motion and more test data.

[0048] The pitch adjustment unit 8 is used to adjust the pitch angle of the transmitter 31. In some embodiments, the pitch adjustment unit 8 includes a base 81, a first adjustment column 82, a horizontal adjustment part 83, a second adjustment column 84, a pitch adjustment part 85, and a clamp 86. The base 81 is bolted to the mounting hole 73 of the mounting plate 7. The first adjustment column 82 and the horizontal adjustment part 83 are installed on the top. The second adjustment column 84 and the pitch adjustment part 85 are installed on one side of the horizontal adjustment part 83. The rod-shaped clamp 86 is also fixed on one side of the pitch adjustment part 85. The clamp 86 is used for detachably installing the transmitter 31. One end of the transmitter 31 is inserted into the movable hole 72. The relationship between the first adjustment column 82 and the horizontal adjustment part 83 is a worm gear + lead screw and nut or a worm gear + gear and rack, which is used to achieve horizontal linear motion. The first adjustment column 82 is a worm, and the structure of the horizontal adjustment part 83 is a lead screw and nut mating structure or a gear and rack mating structure. The relationship between the second adjusting column 84 and the pitch adjusting part 85 is a worm gear mechanism, used to achieve pitch adjustment. The second adjusting column 84 and the pitch adjusting part 85 are both worm gears. This structure effectively ensures the alignment of the laser emission and the lens (which captures and acquires information).

[0049] The clamp 86 has two semi-circular rings, and both ends of the semi-circular rings are connected by bolts. When replacing the transmitter 31, you only need to remove the bolts, replace it, and then install the bolts.

[0050] The adjustment process of pitch adjustment unit 8 is as follows:

[0051] As needed, rotating the first adjusting column 82 causes the horizontal adjusting part 82 to move downwards. At this time, the transmitting end 31 moves downwards within the movable hole 72. After reaching the set position, rotating the second adjusting column 83 causes the pitch adjusting part 85 to drive the transmitting end 31 upwards, achieving the purpose of precisely adjusting the transmitting end 31. Since it is used for experimental testing, using a mechanical structure for fine-tuning is more in line with actual conditions and has greater versatility.

[0052] Unless otherwise specified, all fixed connections in this application are threaded connections using bolts or screws.

[0053] The working principle of a laser distance gating imaging module adjustment bracket is as follows:

[0054] For ease of description, the following is based on the camera: As needed, the housing 2 is pulled to the set position using the handle 23. The electric push rod 61 of the lifting unit 6 is controlled by the controller to push the camera 10 to the set height. Then, the controller controls the rotating unit 4 to rotate to the set angle. According to actual needs, manual fine-tuning is performed by rotating the first adjusting column 82 and the second adjusting column 84 to adjust the transmitter 31 to the corresponding position before observation.

[0055] Since the height and angle are preset, they can be automatically adjusted by the controller. However, the pitch angle needs to be adjusted in real time according to the actual application scenario, so automatic adjustment is not precise enough. This application adopts a purely mechanical structure and utilizes manual fine-tuning. That is, the bracket achieves precise adjustment of the laser distance gating imaging module in multiple degrees of freedom, such as height, horizontal angle, and pitch angle, through a combination of control drive and manual fine-tuning. This ensures alignment of the laser emission and reception optical paths, improves imaging quality and system stability, and is suitable for nighttime or harsh environment observation in military, security, surveying and mapping fields.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laser distance gating imaging module adjustment bracket, characterized in that: The system includes a controller, a base, and a rotating unit, a fixed base, and a camera mounted on top of it. One side of the fixed base is connected to a mounting plate. The mounting plate is equipped with an angle pitch adjustment unit for fine-tuning the laser emission position. The laser emission position and the camera lens are set in the same direction. Below the base, there is a lifting unit for adjusting the camera height. The lifting unit and the rotating unit are respectively connected to the controller via signals.

2. The laser distance gating imaging module adjustment bracket according to claim 1, characterized in that: It also includes a workbench, which consists of a housing and casters mounted below it. Handles are also installed on the side panels of the housing, and a base is placed on top of the housing.

3. The laser distance gating imaging module adjustment bracket according to claim 1, characterized in that: A laser is also mounted on the base, with the laser's emitter mounted on the pitch adjustment unit.

4. The laser distance gating imaging module adjustment bracket according to claim 1, characterized in that: The rotating unit is a rotating motor. A connecting plate is provided between the rotating unit and the fixed base. The connecting plate has several cable management holes for guiding and fixing power lines and signal lines.

5. The laser distance gating imaging module adjustment bracket according to claim 3, characterized in that: The pitch adjustment unit includes a base connected to a mounting plate. A first adjustment column and a horizontal adjustment section are mounted on the base. A second adjustment column and a pitch adjustment section are mounted on one side of the horizontal adjustment section. A clamp is also mounted on one side of the pitch adjustment section. The clamp is used for detachable mounting of the transmitter. One end of the transmitter is inserted into the movable hole of the mounting plate. The first adjustment column is a turbine, and the horizontal adjustment section has a screw and nut engagement structure or a gear and rack engagement structure. The second adjustment column is a turbine, and the pitch adjustment section has a turbine structure.

6. The laser distance gating imaging module adjustment bracket according to claim 2, characterized in that: The lifting unit includes an electric push rod. The fixed end of the electric push rod is connected to the bottom plate of the housing, and the movable end is fixedly connected to the base. A support frame is also fixedly installed below the base. A slider is fixedly installed on one side of the support frame. The slider is slidably connected to the guide rail installed on the side plate. The lifting push rod signal is connected to the controller.

7. The laser distance gating imaging module adjustment bracket according to claim 3, characterized in that: The mounting base is a rectangular frame structure, with the camera body fixedly mounted on top. A mounting plate is connected to one side of the mounting base, and the lens passes through the mounting plate.

8. The laser distance gating imaging module adjustment bracket according to claim 7, characterized in that: The mounting plate has a plate-like structure. At the center of the mounting plate is a lens hole for the lens to pass through. Around the lens hole are several movable holes for the transmitter to pass through and several mounting holes for mounting the pitch adjustment unit.

9. The laser distance gating imaging module adjustment bracket according to claim 8, characterized in that: There are four movable holes, which are evenly distributed in the vertical and horizontal directions, and the mounting holes are located between two adjacent movable holes.

10. The laser distance gating imaging module adjustment bracket according to claim 8, characterized in that: There are 8 movable holes, which are evenly distributed around the lens aperture, with 2 of them located in the horizontal direction.

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