A fixed device capable of realizing ground penetrating radar data collection with arbitrary polarization direction

Abstract

The present application relates to ground penetrating radar installation device technical field, especially to a kind of fixed device that can realize arbitrary polarized direction ground penetrating radar data acquisition, including fixed frame, the fixed frame includes a horizontally arranged cross arm and the supporting leg at the both ends of cross arm;Vertical setting is provided with a fixed shaft on the cross arm of the fixed frame, and the fixed shaft is fixedly connected between the fixed frame, and the upper end of fixed shaft is set through the top surface of the cross arm of fixed frame;The outside of the position of fixed shaft below the cross arm of fixed frame is equipped with a rotating drum, and rotating drive assembly is arranged at the position close to the bottom end of fixed shaft, and the rotating drive assembly can make rotating drum rotate around its axis.The installation fixed device for multiple polarized direction ground penetrating radar provided in the present application has the advantages of reasonable structure, convenient installation and disassembly ground penetrating radar antenna, good adaptability, and is convenient for adjusting the rotation angle and height of ground penetrating radar antenna.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ground penetrating radar mounting device, and particularly relates to a fixed device capable of realizing ground penetrating radar data collection in any polarization direction, which is reasonable in structure, convenient to install and dismount ground penetrating radar antenna, and convenient to adjust the rotation angle and height of the ground penetrating radar antenna. BACKGROUND

[0002] At present, when ground penetrating radar is used for detection, a fixed slot consistent with the driving direction is usually provided with a fastening rope or a buckle connecting piece similar to a mortise and tenon structure to fix the ground penetrating radar antenna. This structure causes the problem that the polarization direction of the antenna cannot be changed and only single polarization direction radar data can be collected because the fixed way cannot adjust the antenna direction during data collection.

[0003] Once the antenna of the traditional vehicle-mounted radar device is fixed on the carrier, the polarization direction of the antenna is always fixed at a fixed angle with the driving direction of the carrier during data collection, and multiple polarization direction data cannot be obtained, so that the information purpose of determining the occurrence of underground abnormal bodies by using multiple polarization angle data cannot be achieved. In recent years, there are devices that can collect multiple polarization radar data by increasing the number of antennas, but there are still problems, such as ① the polarization direction is still fixed and cannot be continuously changed; and ② the cost is doubled. SUMMARY

[0004] The present application provides a fixed device capable of realizing ground penetrating radar data collection in any polarization direction, which is reasonable in structure, convenient to install and dismount ground penetrating radar antenna, and capable of adjusting the rotation angle and height of the ground penetrating radar antenna, to solve the problem that the vehicle-mounted ground penetrating radar can only obtain single polarization direction data during data collection in the prior art.

[0005] The technical scheme adopted by the present application is as follows:

[0006] A fixed device capable of realizing ground penetrating radar data collection in any polarization direction, comprising a fixed frame, the fixed frame comprising a horizontally arranged cross beam and legs located at both ends of the cross beam; a fixed shaft is vertically arranged above the cross beam of the fixed frame, the fixed shaft is fixedly connected with the fixed frame, and the upper end of the fixed shaft penetrates the top surface of the cross beam of the fixed frame; a rotating drum is sleeved outside the position of the fixed shaft below the cross beam of the fixed frame, a rotating drive assembly is arranged at the position close to the bottom end of the fixed shaft, and the rotating drive assembly can rotate the rotating drum about its axis; a group of connecting rods are arranged outside the rotating drum, a surrounding plate is connected below each connecting rod, and a connecting assembly is arranged at the end of each surrounding plate.

[0007] Further, the bottom end of the rotating drum is horizontally provided with a circular bottom plate, and the bottom end of the fixed shaft extends through the bottom plate to below the bottom plate.

[0008] Further, the rotating driving assembly comprises a motor fixing box sleeved on the fixed shaft near the bottom end of the fixed shaft, the motor fixing box can move up and down along the fixed shaft but cannot rotate around the fixed shaft, a speed regulating motor is fixedly arranged in the motor fixing box, the main shaft of the speed regulating motor extends through the side wall of the motor fixing box and horizontally extends to the outside of the motor fixing box, and a rubber wheel is arranged at the outer end of the main shaft of the speed regulating motor; a plane bearing is arranged between the motor fixing box and the bottom plate at the lower end of the rotating drum; the circumference of the rubber wheel is in contact with the bottom surface of the bottom plate; and an annular grating is arranged on the outer circumference of the bottom plate at the lower end of the rotating drum, and a photosensitive lens and a laser generator of a positioning sensor are fixedly connected to the motor fixing box, and the photosensitive lens and the laser generator of the positioning sensor are respectively located on the upper side and the lower side of the grating.

[0009] Further, the bottom surface of the bottom plate at the lower end of the rotating drum is fixedly provided with an annular rubber track, the rubber track is located directly above the rubber wheel and is in close contact with the rubber wheel.

[0010] Further, the fixed shaft is provided with a height adjusting nut below the motor fixing box, and the outer side wall of the corresponding position of the fixed shaft is provided with an outer thread matched with the height adjusting nut.

[0011] Further, the fixing device capable of collecting ground penetrating radar data in any polarization direction further comprises a radar antenna connector arranged above the fence, and the power line and the signal line connected to the radar antenna connector are connected to the controller.

[0012] Further, the fixed shaft is in a hollow tube structure, a group of metal rings are sleeved on the outer circumference of the part of the fixed shaft located in the rotating drum, the metal rings are insulatively arranged, a group of metal elastic contacts are arranged on the corresponding positions of the side wall of the rotating drum and extend through the side wall of the rotating drum, the metal elastic contacts are in close contact with the corresponding metal rings, and the metal elastic contacts are insulatively arranged; the power line and the signal line connected to the radar antenna connector are respectively connected to the corresponding metal elastic contacts; the corresponding power line and signal line are also connected to the metal rings, the power line and the signal line extend through the side wall of the fixed shaft, extend upwards along the inside of the fixed shaft to the outside of the fixed shaft, and are connected to the controller; the speed regulating motor and the positioning sensor are also respectively connected to cables, the cables extend through the side wall of the fixed shaft, extend upwards along the inside of the fixed shaft to the outside of the fixed shaft, and are connected to the controller.

[0013] Further, a flexible connecting piece is arranged between the lower end of the connecting rod and the fence.

[0014] Further, rubber anti-skid particles are arranged on the side wall of the fence towards the fixed shaft; the connecting assembly at both ends of the fence is a nylon zipper.

[0015] Further, the supporting legs are arranged vertically downwards, and a fixed seat is fixedly connected below each supporting leg, and bolt holes are arranged on the fixed seat.

[0016] The fixing device for collecting ground penetrating radar data in any polarization direction provided by the application completely changes the current situation of only collecting data in a single polarization direction, and only one cruise is needed to obtain radar data in multiple desired polarization directions, which is convenient for analyzing the occurrence of underground geological bodies from the radar data in multiple polarization directions in the later stage, realizes multi-angle discrimination of disease bodies, and can greatly improve the judgment accuracy of hidden diseases; compared with the existing equipment for collecting radar data in multiple polarization directions by increasing the number of ground penetrating radar antennas, the device can not only greatly reduce the cost, but also change the polarization direction at any time as needed, which is a unique advantage of the device, and there is no such device in the ground penetrating radar detection industry.

[0017] Specifically, a rotary driving assembly is arranged between the rotating drum and the fixed shaft, which can accurately position the polarization direction and facilitate the angle positioning of the ground penetrating radar antenna under different conditions; the rotating drum drives the ground penetrating radar antenna to rotate through the friction between the rubber wheel and the bottom plate at the bottom end of the rotating drum driven by the speed regulation motor, the structure is reasonable, the rotation angle control is accurate, rubber tracks are arranged on the bottom surface of the bottom plate, which can further increase the friction between the rubber wheel and the rubber tracks, and facilitate the rotation of the drum; the positioning sensor can assist in accurately positioning the rotation angle of the ground penetrating radar antenna, realize the radar data collection of the ground penetrating radar host on the antenna in different polarization directions; the radar antenna connector is arranged, which can avoid the problem of cable winding when the radar antenna needs to be connected and rotated to adjust the scanning direction, and further solve the problem of cable winding when the antenna rotates by arranging the fixed shaft as a hollow pipe structure, arranging the metal ring on the fixed shaft and arranging the metal elastic contact on the rotating drum; the height adjusting nut is arranged below the motor fixing box of the fixed shaft, the rotating height adjusting nut enables the drum and the structure arranged thereon to move up and down within the width range of a single metal ring, thereby realizing the height adjustment of the ground penetrating radar antenna; the flexible connecting piece is arranged between the lower end of the connecting rod and the fence, so that when the fence covers the ground penetrating radar antenna, the fence has a large adjustment space and can adapt to ground penetrating radar antennas of different specifications; rubber anti-skid particles are arranged on the side wall of the fence towards the fixed shaft, which can increase the friction between the fence and the ground penetrating radar antenna and prevent the ground penetrating radar antenna from slipping; the connecting assembly at both ends of the fence is a nylon zipper, which facilitates the fixing and dismounting of the ground penetrating radar antenna.

[0018] In summary, the fixed device for ground penetrating radar data collection with arbitrary polarization direction provided by the present application has the advantages of reasonable structure, convenient installation and removal of the ground penetrating radar antenna, good adaptability, and easy adjustment of the polarization direction and height of the ground penetrating radar antenna. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structure schematic diagram of the fixed device for ground penetrating radar data collection with arbitrary polarization direction provided by the present application;

[0020] Figure 2 is an enlarged schematic diagram of A in Figure 1

[0021] Figure 3 is a top view structure schematic diagram of the fixed device for ground penetrating radar data collection with arbitrary polarization direction provided by the present application;

[0022] Figure 4 is a structure schematic diagram of the surrounding plate in the fixed device for ground penetrating radar data collection with arbitrary polarization direction provided by the present application.

[0023] In the figure: 1, fixed frame; 2, fixed shaft; 3, rotating drum; 4, connecting rod; 5, surrounding plate; 6, connecting assembly; 7, motor fixing box; 8, speed regulating motor; 9, rubber wheel; 10, plane bearing; 11, grating; 12, laser generator; 13, rubber track; 14, height adjusting nut; 15, flexible connecting piece; 16, rubber anti-skid particle; 17, radar antenna connector. DETAILED DESCRIPTION

[0024] The core of the present application is to provide a fixed device for ground penetrating radar data collection with arbitrary polarization direction.

[0025] The content of the present application will be further described below in combination with the drawings:

[0026] A fixed device for ground penetrating radar data collection with arbitrary polarization direction, as shown in Figures 1 to 4 ​As shown, it comprises a fixed frame 1, the fixed frame 1 comprises a horizontally arranged cross arm and vertical downward legs located at both ends of the cross arm, the lower part of the leg is fixedly connected with a fixed seat respectively, the fixed seat is provided with a bolt hole, the cross arm, the leg and the fixed seat are integrally made; the upper part of the cross arm of the fixed frame 1 is vertically welded with a fixed shaft 2, the upper end of the fixed shaft 2 penetrates the top surface of the cross arm of the fixed frame 1; the outer side of the position of the fixed shaft 2 below the cross arm of the fixed frame 1 is sleeved with a rotating drum 3, the bottom end of the rotating drum 3 is horizontally provided with a circular bottom disc, the bottom end of the fixed shaft 2 extends below the bottom disc through the bottom disc, the rotating drum 3 and the circular bottom disc below it are integrally made; the position close to the bottom end of the fixed shaft 2 is provided with a rotating drive assembly, the rotating drive assembly can make the rotating drum 3 rotate around its axis, the rotating drive assembly comprises a motor fixed box 7 sleeved on the position close to the bottom end of the fixed shaft 2, the motor fixed box 7 is centrally arranged, a fixed shaft hole is formed through the top surface and the bottom surface of the motor fixed box 7, the fixed shaft 2 passes through the fixed shaft hole, the position close to the lower end of the fixed shaft 2 is provided with a sliding groove on the side wall in the axial direction, the position of the fixed shaft hole of the motor fixed box 7 towards the sliding groove is provided with a protrusion matched with the sliding groove, so that the motor fixed box 7 can move up and down along the fixed shaft 2 but cannot rotate around the fixed shaft 2, a speed regulating motor 8 is fixedly arranged in the motor fixed box 7, the main shaft of the speed regulating motor 8 penetrates the side wall of the motor fixed box 7 and extends horizontally to the outside of the motor fixed box 7, the outer end of the main shaft of the speed regulating motor 8 is provided with a rubber wheel 9; a plane bearing 10 is arranged between the motor fixed box 7 and the bottom disc at the lower end of the rotating drum 3; the bottom surface of the bottom disc at the lower end of the rotating drum 3 is fixedly provided with an annular rubber track 13, the rubber track 13 is located directly above the rubber wheel 9 and is in close contact with the rubber wheel 9; the outer periphery of the bottom disc at the lower end of the rotating drum 3 is provided with a ring-shaped light grid 11, a light-sensitive lens of a positioning sensor and a laser generator 12 are fixedly connected to the motor fixed box 7, the light-sensitive lens of the positioning sensor and the laser generator 12 are located on the upper side and the lower side of the light grid 11 respectively, wherein the laser generator 12 is located on the lower side of the light grid 11; the fixing device capable of realizing arbitrary polarization direction ground penetrating radar data acquisition further comprises a radar antenna connector 17 arranged above the fence, the power line and the signal line connected with the controller are connected to the radar antenna connector 17; the fixed shaft 2 is a hollow pipe structure, a group of metal rings are sleeved on the outer periphery of the part in the rotating drum 3, the metal rings have a certain width and can meet the corresponding change of the contact position when the rotating drum 3 is adjusted up and down, the metal rings are insulated, a group of metal elastic contacts are arranged on the corresponding positions of the side wall of the rotating drum 13 and penetrate the side wall of the rotating drum, the metal elastic contacts are in close contact with the corresponding metal rings, and the metal elastic contacts are insulated; the power line and the signal line connected to the radar antenna connector 17 are connected with the corresponding metal elastic contacts respectively;The metal ring is also connected with corresponding power lines and signal lines, which penetrate the side wall of the fixed shaft 2, extend upwards inside the fixed shaft 2 to the outside of the fixed shaft 2 and are connected with the controller; the speed regulating motor 8 and the positioning sensor are also connected with cables, which penetrate the side wall of the fixed shaft 2, extend upwards inside the fixed shaft 2 to the outside of the fixed shaft 2 and are connected with the controller; the fixed shaft 2 is provided with a height adjusting nut 14 at a position below the motor fixing box 7, and the outer side wall of the corresponding position of the fixed shaft 2 is provided with an outer thread matched with the height adjusting nut 14; the outer side of the rotating drum 3 is provided with a group of four connecting rods 4, and each connecting rod 4 is connected with a surrounding plate 5 below through a flexible connecting piece 15; the flexible connecting piece 15 is made of rubber or flexible plastic material; the side wall of the surrounding plate 5 facing the fixed shaft 2 is provided with rubber anti-skid particles 16, and the end of the surrounding plate 5 is provided with a connecting assembly 6, which connects the two ends of the adjacent two surrounding plates 5; the connecting assembly 6 is a nylon buckle.

[0027] In specific use, the surrounding plates 5 are tightly attached around the ground penetrating radar antenna, and the adjacent surrounding plates 5 are pulled tightly by the nylon buckles, so that the ground penetrating radar antenna is tightly arranged between the four surrounding plates 5; the connector of the ground penetrating radar antenna is connected with the radar antenna connector 17.

[0028] According to the above specific embodiment, it can be seen that the fixing device for realizing arbitrary polarization direction ground penetrating radar data acquisition provided by the application has the advantages of reasonable structure, convenient installation and removal of the ground penetrating radar antenna, good adaptability, and easy adjustment of the rotation angle and height of the ground penetrating radar antenna.

Claims

1. A fixed device capable of achieving arbitrary polarization direction ground penetrating radar data acquisition, comprising a fixed frame, the fixed frame comprising a horizontally arranged cross arm and a support leg located at both ends of the cross arm; characterized in that: The horizontal arm of the fixed frame is vertically provided with a fixed shaft, which is fixedly connected with the fixed frame, and the upper end of the fixed shaft penetrates the top surface of the horizontal arm of the fixed frame; a rotating drum is arranged outside the position of the fixed shaft below the horizontal arm of the fixed frame, a rotating drive assembly is arranged at the position close to the bottom end of the fixed shaft, and the rotating drive assembly can rotate the rotating drum about the axis of the rotating drum; a group of connecting rods are arranged outside the rotating drum, a baffle is connected below each connecting rod, and a connecting assembly is arranged at the end of each baffle to connect the two ends of two adjacent baffles. The bottom end of the rotating drum is horizontally provided with a circular bottom disc, and the bottom end of the fixed shaft extends below the bottom disc through the bottom disc. The rotating drive assembly comprises a motor fixing box arranged on the position close to the bottom end of the fixed shaft, the motor fixing box can move up and down along the fixed shaft but cannot rotate about the fixed shaft, a speed regulating motor is fixedly arranged in the motor fixing box, the main shaft of the speed regulating motor penetrates the side wall of the motor fixing box and horizontally extends to the outside of the motor fixing box, and a rubber wheel is arranged at the outer end of the main shaft of the speed regulating motor; a plane bearing is arranged between the motor fixing box and the bottom disc at the lower end of the rotating drum; the circumference of the rubber wheel is in contact with the bottom surface of the bottom disc; the outer circumference of the bottom disc at the lower end of the rotating drum is provided with a ring-shaped light grid, and a light-sensitive lens and a laser generator of a positioning sensor are fixedly connected to the motor fixing box, and the light-sensitive lens and the laser generator of the positioning sensor are respectively located on the upper side and the lower side of the light grid.

2. The fixed device for ground penetrating radar data acquisition with arbitrary polarization direction according to claim 1, characterized in that: The bottom surface of the bottom disc at the lower end of the rotating drum is fixedly provided with an annular rubber track, the rubber track is located directly above the rubber wheel and is in close contact with the rubber wheel.

3. The fixed device for ground penetrating radar data acquisition with arbitrary polarization direction according to claim 2, characterized in that: The position below the motor fixing box of the fixed shaft is provided with a height adjusting nut, and the outer side wall of the corresponding position of the fixed shaft is provided with an outer thread matched with the height adjusting nut.

4. The fixed device for ground penetrating radar data acquisition with arbitrary polarization direction according to claim 3, characterized in that: The fixing device capable of realizing ground penetrating radar data collection in any polarization direction further comprises a radar antenna connector arranged above the baffle, and the radar antenna connector is connected with a power line and a signal line connected with the controller.

5. The fixed device for ground penetrating radar data acquisition with arbitrary polarization direction according to claim 4, characterized in that: The fixed shaft is in a hollow tube structure, a group of metal rings are arranged outside the outer circumference of the part of the rotating drum inside the fixed shaft, the metal rings are insulatively arranged, a group of metal elastic contact pieces are arranged on the side wall of the rotating drum and penetrate the side wall of the rotating drum at the positions opposite to the metal rings, the metal elastic contact pieces are in close contact with the corresponding metal rings, and the metal elastic contact pieces are insulatively arranged; the power line and the signal line connected with the radar antenna connector are respectively connected with the corresponding metal elastic contact pieces; the metal rings are also respectively connected with the corresponding power line and signal line, the power line and the signal line penetrate the side wall of the fixed shaft, extend upwards along the inside of the fixed shaft to the outside of the fixed shaft, and are connected with the controller; the speed regulating motor and the positioning sensor are also respectively connected with cables, the cables penetrate the side wall of the fixed shaft, extend upwards along the inside of the fixed shaft to the outside of the fixed shaft, and are connected with the controller.

6. The fixed device for ground penetrating radar data acquisition with arbitrary polarization direction according to claim 5, characterized in that: A flexible connecting piece is arranged between the lower end of the connecting rod and the baffle.

7. The fixed device for ground penetrating radar data acquisition with arbitrary polarization direction according to claim 6, characterized in that: Rubber anti-skid particles are arranged on the side wall of the baffle facing the fixed shaft; and the connecting assembly at the two ends of the baffle is a nylon buckle.

8. The fixed device for ground penetrating radar data acquisition with arbitrary polarization direction according to claim 7, characterized in that: The legs are vertically downwardly arranged, and a fixing base is fixedly connected to the lower part of each leg. A bolt hole is arranged on the fixing base.

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