A multi-channel synchronous three-dimensional ground penetrating radar data acquisition imaging device and method

Abstract

This invention relates to the field of ground-penetrating radar (GPR) data acquisition technology, and discloses a multi-channel synchronous three-dimensional GPR data acquisition and imaging device and method. The device includes a main body mounted on a three-dimensional GPR. This multi-channel synchronous three-dimensional GPR data acquisition and imaging device utilizes shock-absorbing components. When the tires vibrate due to uneven road surfaces, the impact force is transmitted to a movable block via a connecting shaft, causing a movable frame to swing around the connecting block, converting the vertical impact into swing displacement. The movable frame drives the movable rod and connecting rod to move, forming a four-bar linkage shock-absorbing mechanism that disperses and dissipates vibration energy, reducing the impact transmitted to the three-dimensional GPR and improving strength and buffering effect. The four symmetrically arranged shock-absorbing components ensure uniform force distribution and stability, preventing vibration of the main body of the data acquisition and imaging device, ensuring stable and clear data acquisition and imaging, preventing signal interference and distortion, and improving detection accuracy and reliability.

Description

Technical Field

[0001] This invention relates to the field of ground penetrating radar data acquisition technology, specifically to a multi-channel synchronous three-dimensional ground penetrating radar data acquisition and imaging device and method. Background Technology

[0002] 3D ground-penetrating radar (GPR) is an important device for underground structure detection and is widely used in engineering surveys, pipeline inspections, geological exploration, and other fields. Multi-channel synchronous 3D GPR achieves efficient and high-precision data acquisition and imaging through parallel acquisition of signals from multiple channels. In actual operation, it typically relies on tire movement for continuous detection, and its operational stability and channel connection stability directly determine the quality of the detection data and the imaging effect.

[0003] Existing multi-channel synchronous three-dimensional ground-penetrating radars generally suffer from insufficient vibration reduction during mobile detection. The vibration and impact generated when the tires travel over uneven road surfaces cannot be effectively attenuated, which can easily cause the main body of the equipment to shake, resulting in data acquisition distortion and blurred images. At the same time, long-term vibration can easily cause the channel connecting pipes to loosen and fall off, affecting the transmission of multi-channel signals, reducing detection accuracy and operational reliability, and making it difficult to meet the requirements of high-precision and high-stability field detection. Summary of the Invention

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device, which solves the problems of poor shock absorption when multi-channel synchronous three-dimensional ground-penetrating radar moves, equipment vibration caused by road impact, data acquisition distortion and blurred imaging, channel connecting pipes being prone to vibration, loosening and falling off, and unstable signal transmission.

[0005] Technical solution To achieve the above objectives, the present invention provides the following technical solution: a multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device, comprising a data acquisition and imaging device body mounted on a three-dimensional ground-penetrating radar, a tire mounted on the bottom of the three-dimensional ground-penetrating radar, and multiple channel connecting pipes mounted on the outer wall of the data acquisition and imaging device body; further comprising a shock-absorbing component for maintaining stability of the tire during movement; a buffer component for cushioning the shock-absorbing component during use; and a protective component for preventing contact with the multiple channel connecting pipes; the shock-absorbing component comprises: a fixed frame mounted on the bottom of the three-dimensional ground-penetrating radar, a connecting block mounted on the outer wall of the fixed frame, a movable frame hinged to the surface of the connecting block, a movable block hinged to the outer side of the movable frame, a movable rod hinged to the inner side of the movable frame, a connecting rod hinged to the surface of the movable rod, the middle end of the connecting rod hinged to the outer wall of the movable frame, a connecting shaft mounted on the outer side of the movable block, and the tire rotatably connected to the surface of the connecting shaft.

[0006] Preferably, the movable frame has a U-shaped cross-section, and the connecting rod has an L-shaped cross-section.

[0007] Preferably, at least four sets of the shock absorption components are provided, and the four sets of shock absorption components are symmetrically distributed at the four corners of the bottom of the three-dimensional ground penetrating radar.

[0008] Preferably, the buffer assembly includes: a buffer block, the buffer block being mounted on the surface of the connecting rod, a buffer post being installed inside the buffer block, a buffer rod penetrating through the buffer post, a buffer spring being sleeved on the surface of the buffer rod, and the buffer spring being installed inside the buffer post.

[0009] Preferably, the surface of the fixing frame is provided with a sliding groove, and a sliding plate is slidably connected inside the sliding groove. The sliding plate is installed on the outer wall of the buffer block.

[0010] Preferably, the protective component includes: a drive rod, which is mounted on the outer wall of the movable rod, a long rod is hinged to the surface of the drive rod, the long rod is slidably connected to the interior of the three-dimensional ground-penetrating radar, an abutment frame is installed on the top of the long rod, and a sliding rod is installed on the inner side of the abutment frame.

[0011] Preferably, a bracket is installed at the bottom of the data acquisition and imaging device body, the bracket is installed on the top of the three-dimensional ground penetrating radar, the contact frame is slidably connected inside the bracket, a rotating shaft is rotatably connected inside the bracket, and the slide rod is slidably connected to the surface of the rotating shaft.

[0012] Preferably, the top of the rotating shaft is connected to a threaded rod via a belt and a drive wheel. A short plate is provided on the surface of the threaded rod. The short plate is installed on the outer wall of the data acquisition and imaging device body. The threaded rod is rotatably connected to the inner side of the short plate. A slide is threadedly connected to the surface of the threaded rod. The slide is slidably connected to the outer wall of the data acquisition and imaging device body. A protective strip is installed on the surface of the slide.

[0013] Preferably, the surface of the rotating shaft is provided with an arc-shaped groove, and the surface of the threaded rod is provided with two opposite threads, which are used to drive the two side slides to move synchronously towards each other.

[0014] A multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging method further includes the following steps: Step 1: Move the 3D ground-penetrating radar to the area to be detected, check whether the tires, shock absorption components, and buffer components are flexible and smooth, and confirm that the channel connecting pipe is connected to the data acquisition and imaging device body in place; Step 2: Move the entire data acquisition and imaging device to the area to be detected, so that the tires make stable contact with the ground. During the movement of the device, the vibration and impact caused by the uneven road surface act on the tires and are transmitted to the shock absorption components through the connecting shaft. The four-bar linkage consisting of the movable frame, movable rod and connecting rod converts the vertical impact into swing displacement. Step 3: While the shock absorption component swings and buffers, the buffer component starts working simultaneously. The connecting rod drives the buffer block to move, causing the buffer column to slide along the buffer rod and compress the buffer spring, converting the remaining impact energy into elastic potential energy for absorption and consumption. The sliding plate slides linearly along the groove of the fixed frame. Step 4: The device moves and the vibration triggers the protection components to operate in conjunction. The movable rod drives the drive rod to push the long rod upward and slide it. The contact frame moves along the bracket and makes the slide rod move in the arc groove of the rotating shaft, converting the linear thrust into rotational power. The rotating shaft drives the threaded rod to rotate through the belt drive, and uses two opposite threads to drive the two slide frames to move synchronously in opposite directions. Step 5: The data acquisition and imaging device receives underground detection signals from the 3D ground-penetrating radar synchronously through multiple channel connecting pipes, performs real-time reception, processing and analysis of multi-channel data, and finally generates clear and accurate 3D imaging results, completing the multi-channel synchronous 3D ground-penetrating radar data acquisition and imaging operation. Beneficial effects

[0015] Compared with the prior art, the present invention provides a multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device, which has the following beneficial effects: 1. This multi-channel synchronous 3D ground-penetrating radar data acquisition and imaging device utilizes shock-absorbing components. When the tires vibrate due to uneven road surfaces, the impact force is transmitted to the movable block via the connecting shaft. This causes the movable frame to swing around the connecting block, converting the vertical impact into oscillating displacement. The movable frame drives the movable rod and connecting rod to move, forming a four-bar shock-absorbing mechanism that disperses and dissipates vibration energy, reducing the impact transmitted to the 3D ground-penetrating radar. The movable frame is U-shaped, and the connecting rod is L-shaped, enhancing strength and buffering effect. The four symmetrically arranged shock-absorbing components ensure even force distribution and stability, preventing vibration of the data acquisition and imaging device itself, ensuring stable and clear data acquisition and imaging, preventing signal interference and distortion, and improving detection accuracy and reliability.

[0016] 2. This multi-channel synchronous 3D ground-penetrating radar data acquisition and imaging device utilizes a buffer assembly. When the shock-absorbing assembly is working, the connecting rod drives the buffer block to move, and the buffer column slides along the buffer rod, compressing the buffer spring. This converts the impact energy into elastic potential energy for absorption, achieving secondary buffering and force dissipation, thus avoiding rigid impacts. The sliding plate slides synchronously along the groove of the fixed frame, providing linear guidance for the buffer block, ensuring smooth, non-deviational, and non-jamming movement, and allowing the buffer spring to extend and contract linearly. This structure further reduces the impact of vibration on the 3D ground-penetrating radar body, improves the operational stability of the device, and ensures that data acquisition and imaging are not interfered with by vibration.

[0017] 3. This multi-channel synchronous 3D ground-penetrating radar data acquisition and imaging device utilizes protective components. When the 3D ground-penetrating radar moves and vibrates, the movable rod swings, driving the drive rod to push the long rod upwards. The contact frame moves linearly along the bracket, and the sliding rod moves along the arc-shaped groove of the rotating shaft, converting the linear thrust into the rotational power of the rotating shaft. The rotating shaft drives the threaded rod to rotate via belt drive. Its positive and negative threads drive the two side slides to move synchronously towards each other. The protective strip closes and clamps the channel connecting pipe to prevent it from loosening, falling off, or making poor contact, ensuring stable signal transmission, continuous and accurate data acquisition and imaging, and improving the overall stability and imaging quality of the device. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of a multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device proposed in this invention; Figure 2 This is a side view schematic diagram of a multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device proposed in this invention; Figure 3 This is a front view schematic diagram of the vibration damping component of a multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device proposed in this invention; Figure 4 This is a front view schematic diagram of the buffer component of a multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device proposed in this invention; Figure 5 This is a front view schematic diagram of the protective component of a multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device proposed in this invention; Figure 6 This is a side view schematic diagram of the protective component of a multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device proposed in this invention.

[0019] In the diagram: 1. 3D ground-penetrating radar; 2. Data acquisition and imaging device body; 3. Tire; 4. Channel connecting pipe; 5. Shock absorption component; 6. Buffer component; 7. Protective component; 51. Fixing frame; 52. Connecting block; 53. Movable frame; 54. Movable block; 55. Movable rod; 56. Connecting rod; 57. Connecting shaft; 61. Buffer block; 62. Buffer column; 63. Buffer rod; 64. Buffer spring; 510. Slide groove; 65. Sliding plate; 71. Drive rod; 72. Long rod; 73. Contact frame; 74. Slide rod; 8. Bracket; 75. Rotating shaft; 76. Threaded rod; 77. Short plate; 78. Slide carriage; 79. Protective strip; 750. Arc-shaped slide groove. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1 - Figure 6 As shown, a multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device includes a data acquisition and imaging device body 2 mounted on a three-dimensional ground-penetrating radar 1, a tire 3 mounted on the bottom of the three-dimensional ground-penetrating radar 1, and multiple channel connecting pipes 4 mounted on the outer wall of the data acquisition and imaging device body 2. It also includes a shock-absorbing component 5, which is used to keep the tire 3 stable when moving; The buffer assembly 6 is used to buffer the shock absorption assembly 5 during use; Protection component 7 is used to abut against multiple channel connecting pipes 4; First, the shock absorption component 5 includes: a fixed frame 51, which provides a rigid mounting base for the overall shock absorption structure to ensure stable support. The fixed frame 51 is installed at the bottom of the three-dimensional ground penetrating radar 1. A connecting block 52 is installed on the outer wall of the fixed frame 51. A movable frame 53 is hinged to the surface of the connecting block 52. The swing of the movable frame 53 converts the impact force of the road surface into displacement, thereby achieving initial shock absorption. A movable block 54 is hinged to the outer side of the movable frame 53. A movable rod 55 is hinged to the inner side of the movable frame 53. A connecting rod 56 is hinged to the surface of the movable rod 55. The middle end of the connecting rod 56 is hinged to the outer wall of the movable frame 53. A connecting shaft 57 is installed on the outer side of the movable block 54. The tire 3 is rotatably connected to the surface of the connecting shaft 57. The contact between the tire 3 and the ground reduces direct friction and rigid impact.

[0022] Secondly, the cross-section of the movable frame 53 is U-shaped. The U-shaped structure improves the strength and deformation resistance of the movable frame 53 and enhances the stability of the hinge. The cross-section of the connecting rod 56 is L-shaped. The L-shaped structure optimizes the force angle, making the transmission smoother and the buffering effect better.

[0023] Furthermore, at least four sets of shock-absorbing components 5 are provided, and the four sets of shock-absorbing components 5 are symmetrically distributed at the four corners of the bottom of the three-dimensional ground penetrating radar 1. The symmetrical arrangement at the four corners achieves uniform force distribution in all directions, ensuring that the equipment moves smoothly without tilting or shaking.

[0024] Furthermore, the buffer assembly 6 includes: a buffer block 61, which is mounted on the surface of the connecting rod 56; a buffer post 62 is mounted inside the buffer block 61; a buffer rod 63 passes through the inside of the buffer post 62; a buffer spring 64 is sleeved on the surface of the buffer rod 63; and the buffer spring 64 is mounted inside the buffer post 62. The built-in installation ensures that the buffer spring 64 is subjected to uniform force and extends its service life.

[0025] Furthermore, the surface of the fixing frame 51 is provided with a sliding groove 510, which provides guidance for the sliding plate 65 to ensure smooth buffering movement. The sliding plate 65 is slidably connected inside the sliding groove 510 and is installed on the outer wall of the buffer block 61. The sliding plate 65 drives the buffer block 61 to move synchronously, improving the reliability of buffering.

[0026] Furthermore, the protection component 7 includes: a drive rod 71, which is mounted on the outer wall of the movable rod 55. A long rod 72 is hinged to the surface of the drive rod 71. The long rod 72 is slidably connected inside the three-dimensional ground penetrating radar 1. A contact frame 73 is installed on the top of the long rod 72. A slide rod 74 is installed on the inner side of the contact frame 73. The slide rod 74 is used to guide the transmission and convert linear motion into rotational motion.

[0027] Furthermore, a bracket 8 is installed at the bottom of the data acquisition and imaging device body 2. The bracket 8 is installed on the top of the three-dimensional ground penetrating radar 1. The contact frame 73 is slidably connected inside the bracket 8. A rotating shaft 75 is rotatably connected inside the bracket 8. A sliding rod 74 is slidably connected to the surface of the rotating shaft 75. The motion mode can be changed through the cooperation of the sliding rod 74 and the rotating shaft 75.

[0028] Furthermore, the top of the rotating shaft 75 is connected to a threaded rod 76 via a belt and a drive wheel. A short plate 77 is provided on the surface of the threaded rod 76. The short plate 77 is installed on the outer wall of the data acquisition and imaging device body 2. The threaded rod 76 is rotatably connected to the inner side of the short plate 77. A slide 78 is threadedly connected to the surface of the threaded rod 76. The slide 78 is slidably connected to the outer wall of the data acquisition and imaging device body 2. A protective strip 79 is installed on the surface of the slide 78. The protective strip 79 abuts against and clamps the channel connecting pipe 4 to prevent loosening and falling off.

[0029] Finally, an arc-shaped groove 750 is provided on the surface of the rotating shaft 75. The arc-shaped groove 750 cooperates with the slide rod 74 to smoothly push the rotating shaft 75 to rotate. The threaded rod 76 has two opposite threads on its surface, which are used to drive the two side slides 78 to move synchronously in opposite directions. The positive and negative threads achieve synchronous clamping on the left and right sides, so that the channel connecting pipe 4 is subjected to uniform force and the protection is more reliable.

[0030] A multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging method further includes the following steps: Step 1: Move the 3D ground-penetrating radar 1 to the area to be detected, check whether the tires 3, shock-absorbing components 5, and buffer components 6 are flexible and smooth, and confirm that the channel connecting pipe 4 is connected to the data acquisition and imaging device body 2 in place. Step 2: Move the entire data acquisition and imaging device 2 to the area to be detected, so that the tire 3 makes stable contact with the ground. During the movement of the device, the vibration and impact force generated by the uneven road surface acts on the tire 3 and is transmitted to the shock absorption component 5 through the connecting shaft 57. The four-bar linkage composed of the movable frame 53, the movable rod 55 and the connecting rod 56 converts the vertical impact into swing displacement. Step 3: While the shock absorber 5 is swinging and buffering, the buffer assembly 6 starts working simultaneously. The connecting rod 56 drives the buffer block 61 to move, causing the buffer column 62 to slide along the buffer rod 63 and compress the buffer spring 64, converting the remaining impact energy into elastic potential energy for absorption and consumption. The sliding plate 65 slides linearly along the slide groove 510 of the fixed frame 51. Step 4: The device moves and the vibration triggers the protection component 7 to operate in conjunction. The movable rod 55 drives the drive rod 71 to push the long rod 72 to slide upward. The contact frame 73 moves along the bracket 8 and makes the slide rod 74 move in the arc-shaped slide groove 750 of the rotating shaft 75, converting the linear thrust into rotational power. The rotating shaft 75 drives the threaded rod 76 to rotate through the belt drive, and uses two opposite threads to drive the two slide frames 78 to move synchronously in opposite directions. Step 5: The data acquisition and imaging device body 2 synchronously receives the underground detection signals from the three-dimensional ground penetrating radar 1 through multiple channel connecting pipes 4, performs real-time reception, processing and analysis of multi-channel data, and finally generates clear and accurate three-dimensional imaging results, completing the data acquisition and imaging operation of the multi-channel synchronous three-dimensional ground penetrating radar 1.

[0031] Working principle: When the 3D ground-penetrating radar 1 moves on the ground and drives the data acquisition and imaging device body 2, the tires 3 will experience up-and-down bumps and vibrations due to uneven road surfaces. This vibration and impact force is transmitted to the movable block 54 via the connecting shaft 57. The movable block 54, under pressure, drives the movable frame 53 to adaptively swing around the connecting block 52 on the fixed frame 51, thereby converting the vertical impact force of the road surface into the swing displacement of the movable frame 53. During the swinging process, the movable frame 53 drives the inner movable rod 55 to move synchronously. The movable rod 55 then drives the connecting rod 56, which is hinged to it, to move. Since the middle end of the connecting rod 56 is hinged to the outer wall of the movable frame 53, the movable frame 53, the movable rod 55, and the connecting rod 56 together form a stable four-bar linkage damping mechanism. During movement, they mutually constrain and cooperate to buffer each other, thus... The system effectively disperses and consumes vibration energy, significantly reducing the impact force transmitted to the main body of the 3D ground-penetrating radar 1. The movable frame 53 is designed with a U-shaped cross-section structure, which can improve the overall support strength and hinge stability, and avoid deformation under stress. The connecting rod 56 adopts an L-shaped cross-section structure, which can optimize the force angle and transmission stroke, and improve the shock absorption effect. At the same time, at least four sets of shock absorption components 5 are set and symmetrically distributed at the four corners of the bottom of the 3D ground-penetrating radar 1, which can achieve all-round and uniform force, ensuring that the equipment always maintains a horizontal and stable state during movement, reducing swaying and tilting, and avoiding shaking of the main body 2 of the data acquisition and imaging device due to excessive vibration. This ensures that the data acquisition and imaging process of the multi-channel synchronous 3D ground-penetrating radar 1 is stable and clear, prevents signal interference and data distortion, and improves the overall detection accuracy and operational reliability of the device.

[0032] When the shock absorption assembly 5 is working, the connecting rod 56 swings synchronously with the movable frame 53 and generates displacement. The connecting rod 56 drives the buffer block 61 to move together. The buffer block 61 drives the inner buffer column 62 to slide axially along the buffer rod 63. At this time, the buffer column 62 compresses the buffer spring 64 sleeved on the surface of the buffer rod 63. The buffer spring 64 undergoes elastic deformation under force, converting the vibration and impact energy transmitted by the connecting rod 56 into elastic potential energy and absorbing and dissipating it. This achieves secondary buffering and unloading of the shock absorption assembly 5, avoiding rigid impact. At the same time, the sliding plate 65 on the outer wall of the buffer block 61 slides synchronously along the sliding groove 510 on the surface of the fixed frame 51, providing linear guide limit for the buffer block 61. This ensures that the relative movement of the buffer column 62 and the buffer rod 63 is smooth, without deviation or jamming, so that the buffer spring 64 always extends and contracts in a straight line, giving full play to the elastic buffering effect. This further reduces the vibration impact of road bumps on the main body of the three-dimensional ground penetrating radar 1, improves the operational stability of the device, and ensures that the data acquisition and imaging process is not disturbed by vibration.

[0033] When the 3D ground-penetrating radar 1 moves and vibrates, the movable rod 55 of the shock-absorbing component 5 swings with the road bumps. The movable rod 55 synchronously drives the drive rod 71 on the outer wall to move. The drive rod 71 converts the swinging power into an upward thrust and transmits it to the long rod 72, causing the long rod 72 to slide stably upward along the inside of the 3D ground-penetrating radar 1. The top of the long rod 72 drives the contact frame 73 to move upward synchronously. The contact frame 73 slides linearly under the limiting constraint of the bracket 8. The sliding rod 74 on the inner side of the contact frame 73 moves upward accordingly. The sliding rod 74 is embedded in the arc-shaped groove 750 on the surface of the rotating shaft 75. As the sliding rod 74 moves upward, it pushes the rotating shaft 75 to rotate along the trajectory of the arc-shaped groove 750, smoothly converting the linear motion into rotational power. After the rotating shaft 75 rotates, it drives the drive wheel synchronously through the belt. The threaded rod 76 rotates stably under the support of the short plate 77. Since the surface of the threaded rod 76 has two opposite threads, the threaded transmission can drive the slides 78 on both sides to move synchronously towards each other along the outer wall of the data acquisition and imaging device body 2. The slides 78 drive the protective strips 79 to close inward synchronously, forming a uniform and stable contact clamp on the multiple channel connecting pipes 4, thereby firmly fixing the channel connecting pipes 4 and avoiding problems such as loosening, falling off, wear or poor contact of the channel connecting pipes 4 under long-term vibration conditions. This ensures stable and reliable multi-channel signal transmission, enabling the data acquisition and imaging device body 2 to stably receive the detection signals from the three-dimensional ground penetrating radar 1, ensuring continuous and accurate data acquisition and imaging processes, and improving the overall operational stability and detection imaging quality of the device.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device, comprising a data acquisition and imaging device body (2) mounted on a three-dimensional ground-penetrating radar (1), characterized in that: The bottom of the three-dimensional ground-penetrating radar (1) is equipped with a tire (3), and multiple channel connecting pipes (4) are installed on the outer wall of the data acquisition and imaging device body (2). It also includes a shock-absorbing component (5) for keeping the tire (3) stable during movement; A buffer assembly (6) is used to buffer the shock-absorbing assembly (5) during use; A protective component (7) is used to abut against multiple channel connecting pipes (4); The shock absorption assembly (5) includes: a fixed frame (51), which is installed at the bottom of the three-dimensional ground penetrating radar (1). A connecting block (52) is installed on the outer wall of the fixed frame (51). A movable frame (53) is hinged to the surface of the connecting block (52). A movable block (54) is hinged to the outer side of the movable frame (53). A movable rod (55) is hinged to the inner side of the movable frame (53). A connecting rod (56) is hinged to the surface of the movable rod (55). The middle end of the connecting rod (56) is hinged to the outer wall of the movable frame (53). A connecting shaft (57) is installed on the outer side of the movable block (54). The tire (3) is rotatably connected to the surface of the connecting shaft (57).

2. The multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device according to claim 1, characterized in that: The movable frame (53) has a U-shaped cross-section, and the connecting rod (56) has an L-shaped cross-section.

3. The multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device according to claim 1, characterized in that: The shock absorption components (5) are provided in at least four sets, and the four sets of shock absorption components (5) are symmetrically distributed at the four corners of the bottom of the three-dimensional ground penetrating radar (1).

4. The multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device according to claim 1, characterized in that: The buffer assembly (6) includes: a buffer block (61), which is mounted on the surface of the connecting rod (56), a buffer post (62) is mounted on the inner side of the buffer block (61), a buffer rod (63) passes through the inside of the buffer post (62), a buffer spring (64) is sleeved on the surface of the buffer rod (63), and the buffer spring (64) is mounted on the inner side of the buffer post (62).

5. The multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device according to claim 4, characterized in that: The surface of the fixed frame (51) is provided with a sliding groove (510), and a sliding plate (65) is slidably connected inside the sliding groove (510). The sliding plate (65) is installed on the outer wall of the buffer block (61).

6. The multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device according to claim 5, characterized in that: The protective component (7) includes: a drive rod (71), which is mounted on the outer wall of the movable rod (55), and a long rod (72) is hinged to the surface of the drive rod (71). The long rod (72) is slidably connected to the interior of the three-dimensional ground-penetrating radar (1). A contact frame (73) is installed on the top of the long rod (72), and a sliding rod (74) is installed on the inner side of the contact frame (73).

7. The multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device according to claim 6, characterized in that: The data acquisition and imaging device body (2) has a bracket (8) installed at the bottom. The bracket (8) is installed on the top of the three-dimensional ground penetrating radar (1). The contact frame (73) is slidably connected inside the bracket (8). The bracket (8) has a rotating shaft (75) rotatably connected inside. The slide rod (74) is slidably connected to the surface of the rotating shaft (75).

8. The multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device according to claim 7, characterized in that: The top of the rotating shaft (75) is connected to a threaded rod (76) via a belt and a drive wheel. A short plate (77) is provided on the surface of the threaded rod (76). The short plate (77) is installed on the outer wall of the data acquisition imaging device body (2). The threaded rod (76) is rotatably connected to the inner side of the short plate (77). A slide (78) is threadedly connected to the surface of the threaded rod (76). The slide (78) is slidably connected to the outer wall of the data acquisition imaging device body (2). A protective strip (79) is installed on the surface of the slide (78).

9. A multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device according to claim 8, characterized in that: The rotating shaft (75) has an arc-shaped groove (750) on its surface, and the threaded rod (76) has two opposite threads on its surface, which are used to drive the two side slides (78) to move synchronously towards each other.

10. A method for acquiring and imaging multi-channel synchronous three-dimensional ground-penetrating radar data, characterized in that: The multi-channel synchronous three-dimensional ground-penetrating radar data acquisition and imaging device according to any one of claims 1-9 further includes the following steps: Step 1: Move the 3D ground-penetrating radar (1) to the area to be detected, check whether the tires (3), shock absorption components (5), and buffer components (6) are flexible and smooth, and confirm that the channel connecting pipe (4) is connected to the data acquisition imaging device body (2) in place; Step 2: Move the data acquisition imaging device body (2) to the area to be detected, so that the tire (3) can make stable contact with the ground. During the movement of the device, the vibration and impact force generated by the uneven road surface will act on the tire (3) and be transmitted to the shock absorption component (5) through the connecting shaft (57). The four-bar linkage composed of the movable frame (53), the movable rod (55) and the connecting rod (56) will convert the vertical impact into swing displacement. Step 3: While the shock absorber (5) swings and buffers, the buffer assembly (6) starts working synchronously. The connecting rod (56) drives the buffer block (61) to move, so that the buffer column (62) slides along the buffer rod (63) and compresses the buffer spring (64), converting the remaining impact energy into elastic potential energy for absorption and consumption. The sliding plate (65) slides linearly along the groove (510) of the fixed frame (51). Step 4: The device moves and the vibration triggers the protection component (7) to operate in conjunction. The movable rod (55) drives the drive rod (71) to push the long rod (72) to slide upward. The contact frame (73) moves along the bracket (8) and makes the slide rod (74) move in the arc-shaped slide groove (750) of the rotating shaft (75), converting the linear thrust into rotational power. The rotating shaft (75) drives the threaded rod (76) to rotate through the belt drive, and uses two opposite threads to drive the two side slides (78) to move synchronously towards each other. Step 5: The data acquisition and imaging device (2) receives the underground detection signal of the three-dimensional ground penetrating radar (1) synchronously through multiple channel connecting pipes (4), performs real-time reception, processing and analysis of multi-channel data, and finally generates clear and accurate three-dimensional imaging results, completing the multi-channel synchronous three-dimensional ground penetrating radar data acquisition and imaging operation.

Images