CN110562150A - Installation device and system for rapid adaptation of ground penetrating radar - Google Patents

Installation device and system for rapid adaptation of ground penetrating radar Download PDF

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Publication number
CN110562150A
CN110562150A CN201910990851.8A CN201910990851A CN110562150A CN 110562150 A CN110562150 A CN 110562150A CN 201910990851 A CN201910990851 A CN 201910990851A CN 110562150 A CN110562150 A CN 110562150A
Authority
CN
China
Prior art keywords
structural
radar antenna
ground penetrating
magnets
radar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910990851.8A
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Chinese (zh)
Inventor
毛小松
徐志
杨晓静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Qimo Intelligent Technology Co Ltd
Original Assignee
Suzhou Qimo Intelligent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Qimo Intelligent Technology Co Ltd filed Critical Suzhou Qimo Intelligent Technology Co Ltd
Priority to CN201910990851.8A priority Critical patent/CN110562150A/en
Publication of CN110562150A publication Critical patent/CN110562150A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00Arrangements for holding or mounting articles, not otherwise provided for
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/008Adjustable or movable supports

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Support Of Aerials (AREA)

Abstract

The invention provides a mounting device for rapid adaptation of a ground penetrating radar, which is used for being detachably adapted to the head or tail of a motor vehicle and at least comprises a structural plate (1), a structural connecting piece (2) and a radar antenna (3), wherein the structural plate (1) is connected with the radar antenna (3) through the structural connecting piece (2), one or more magnets (4) are arranged below the structural plate (1), and the structural plate (1) is magnetically connected with one end face of the one or more magnets (4). The installation device for the rapid adaptation of the ground penetrating radar realizes the disassembly of the ground penetrating radar antenna, finely adjusts the radar antenna through the height adjustment and the angle adjustment, and completes the detection work of the ground penetrating radar by matching with a motor vehicle.

Description

Installation device and system for rapid adaptation of ground penetrating radar
Technical Field
The invention relates to the technical field of ground penetrating radar detection, in particular to a mounting device and a system for rapid adaptation of a ground penetrating radar.
Background
The ground penetrating radar technology is widely applied to road acceptance and road maintenance due to the characteristics of nondestructive testing. At present, the installation device of the ground penetrating radar mainly adopts two modes of a small cart and a small trailer. The small handcart is a portable ground penetrating radar vehicle, is like a hand-push type mower, four small wheels are arranged on the periphery of a lower box body, a tray is arranged on a pushing handle, a notebook computer can be placed on the tray, and the structure of a certain underground depth can be detected by pushing the small handcart. The small trailer is a ground penetrating radar detection vehicle which is dragged behind a functional vehicle. A detection radar antenna is arranged in a large box which is almost tightly attached to the ground below the small trailer, and the structure of a certain depth underground can be detected when the functional vehicle runs. The ground penetrating radar 'trolley' and 'small trailer' can be really called as a walking urban road 'B-ultrasonic' machine, and health conditions of urban roads are checked.
The researchers apply the ground penetrating radar to asphalt paving construction, and the thickness of asphalt paving is monitored in real time respectively. Due to the fact that the bulk of the paved asphalt is high, tracks can be left on the paved asphalt when the two ground penetrating radar mounting modes are used for detecting the thickness, and the two ground penetrating radar mounting modes are not suitable for paving construction and asphalt thickness monitoring. Therefore, the installation mode of the ground penetrating radar needs to be designed so as to meet the real-time detection of the asphalt paving thickness of the ground penetrating radar.
At present, a technical scheme capable of solving the technical problems does not exist, and specifically, a mounting device and a system for fast adaptation of a ground penetrating radar do not exist.
Disclosure of Invention
In view of the technical defects in the prior art, the present invention provides a mounting device and a system for fast adaptation of ground penetrating radar, and according to one aspect of the present invention, the mounting device for fast adaptation of ground penetrating radar is provided, which is used for being detachably adapted to the head or tail of a motor vehicle, and at least comprises a structural plate, a structural connecting member and a radar antenna, wherein the structural plate is connected with the radar antenna through the structural connecting member,
One or more magnets are arranged below the structural plate, and the structural plate is magnetically connected with one end face of one or more magnets.
Preferably, the structural connection piece includes metallic structure spare and non-metallic structure spare at least, wherein, metallic structure spare sets up and is being close to the one end of structural slab, non-metallic structure spare sets up and is being close to the one end of radar antenna.
Preferably, the metal structural member and the non-metal structural member are perpendicular to each other.
Preferably, the one end of the junction of metallic structure spare with non-metallic structure spare is opened and is had the multirow altitude mixture control hole that sets up from top to bottom, non-metallic structure spare with the one end of the junction of metallic structure spare is in through the mode of clamping connection the altitude direction of metallic structure spare is adjusted from top to bottom.
Preferably, a stepless height adjusting device is arranged at any position of the non-metal structural part in the horizontal direction.
Preferably, an angle adjustment device is provided at the connection of the structural connector and the radar antenna.
Preferably, the distance of the radar antenna from the metal structural part is at least 10 cm.
According to another aspect of the invention, a mounting system for fast adaptation of a ground penetrating radar is provided, wherein the motor vehicle at least comprises a baffle plate which extends outwards and is magnetically connected with the other end face of the magnet or the magnets.
Preferably, the magnetic connecting structure further comprises a clamp, and in an operating state, the clamp clamps the magnetic connecting structure formed by the baffle, the one or more magnets and the structural plate.
Preferably, the distance of the radar antenna from the baffle is at least 10 cm.
Preferably, the motor vehicle at least comprises an automobile and an engineering machinery vehicle.
The invention provides a mounting device for rapid adaptation of a ground penetrating radar, which is used for being detachably adapted to the head or tail of a motor vehicle and at least comprises a structural plate, a structural connecting piece and a radar antenna, wherein the structural plate is connected with the radar antenna through the structural connecting piece, one or more magnets are arranged below the structural plate, the structural plate is magnetically connected with one end face of the one or more magnets, meanwhile, the motor vehicle at least extends outwards to form a baffle plate, the baffle plate is magnetically connected with the other end face of the one or more magnets, and in a working state, a clamp clamps a magnetic connecting structure formed by the baffle plate, the one or more magnets and the structural plate. According to the adaptive device, the ground penetrating radar antenna can be detached, the radar antenna can be finely adjusted through height adjustment and angle adjustment accurately, and the ground penetrating radar detection work can be completed by matching with a motor vehicle.
drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
Fig. 1 is a schematic diagram illustrating a connection structure of a ground penetrating radar quick-adapting mounting device according to an embodiment of the present invention; and
Fig. 2 is a schematic connection structure diagram of a rapid adaptation installation system of a ground penetrating radar according to another embodiment of the present invention.
Detailed Description
in order to better and clearly show the technical scheme of the invention, the invention is further described with reference to the attached drawings.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic view showing a connection structure of a ground penetrating radar quick-adaptation mounting device according to an embodiment of the present invention, which is detachably adapted to a motor vehicle by the ground penetrating radar quick-adaptation mounting device, wherein the ground penetrating radar quick-adaptation mounting device is adapted to a head or a tail of the motor vehicle, and in other embodiments, the ground penetrating radar quick-adaptation mounting device can be arranged on two sides of the motor vehicle.
Further, the installation device for the rapid adaptation of the ground penetrating radar at least comprises a structural plate, the structural plate is an adaptation surface of the installation device for the rapid adaptation of the ground penetrating radar, the structural plate is of a metal structure and is used for being magnetically connected with a motor vehicle through a magnet, preferably, the structural plate is of a flat rectangular structure, and in other embodiments, the structural plate can be further arranged to be circular, oval or in other shapes.
Further, the installation device for fast adaptation of a ground penetrating radar at least comprises a structural connector, and those skilled in the art understand that the structural connector is mainly used for connecting a structural plate and a radar antenna described later, and at the same time, the structural connector also provides height adjustment and angle adjustment, and the structural connector may be a metal structure, a non-metal structure, or a combination of the two, which will be further described in the detailed description below, and will not be described herein again.
Further, installation device of the quick adaptation of ground penetrating radar includes radar antenna at least, the structural slab passes through the structural connection spare with radar antenna is connected, radar antenna is used for carrying out radar detection to ground, furtherly, the structural slab with be connected between the structural connection spare with connected mode between the radar antenna includes but not limited to threaded connection, welding, joint, riveting.
Further, one or more magnets are arranged below the structural plate, and the structural plate is magnetically connected with one end face of the one or more magnets, as understood by those skilled in the art, the magnets are in a flat structure, one end face of the one or more magnets is magnetically connected with the lower end face of the structural plate, in a preferred embodiment, the magnets can be fully paved below the structural plate, in other embodiments, the magnets can also be arranged at intervals, in a special embodiment, only one magnet can be arranged, and the number of the magnets is set according to the area size, the magnetic size, the required bonding force size and the like of the magnets.
Further, the structural connector comprises at least a metallic structural member and a non-metallic structural member, wherein, as a variant, the metallic structural member is arranged close to one end of the structural plate and the non-metallic structural member is arranged close to one end of the radar antenna, for better describing the invention, the structural connector is preferably divided into two parts, i.e., metallic structural members and non-metallic structural members, however, the structural connector may exist independently as a single unit, or the metallic structural member and the structural panel may exist as a single unit, the non-metallic structural member exists separately as a single unit, that is, in such an embodiment, the integral structure of the metal structural member and the structural plate is movably connected with the non-metal structural member, and the non-metal structural member is fixedly connected with the radar antenna.
Further, the metal structural component and the non-metal structural component are perpendicular to each other, as shown in fig. 1, the metal structural component and the non-metal structural component are disposed perpendicularly, but in other embodiments, the metal structural component and the non-metal structural component may also be disposed at an acute angle, an obtuse angle, or in a crossing manner.
Furthermore, as a preferred embodiment of the present invention, as shown in fig. 1, each row is provided with two holes, while in other embodiments, single holes, three holes or even more holes may be provided, further, a plurality of rows of up-down adjusting holes are provided, in such an embodiment, the metal structural member is provided with the adjusting holes, the non-metal structural member is provided with the clamping portion, the clamping position is adjusted by adjusting and pressing the pressing portion of the non-metal structural member, so as to adjust the height of the whole non-metal structural member, and the manner of the height adjustment belongs to the existing technology, besides the clamping manner, other height adjusting manners, such as elastic clamping, screw abutting, and the like, may be provided, which are not described herein.
Further, a stepless height adjusting device is arranged at any position of the non-metal structural member in the horizontal direction, in this embodiment, fig. 2 is required to be combined, as shown in fig. 2, a height adjusting shaft is arranged inside the height adjusting device, and further, a tightening screw is arranged outside the height adjusting device, the tightening screw is loosened, the height is finely adjusted, the tightening screw is tightened, and the height is fixed, so that the fine adjustment of the radar antenna on the non-metal structural member is realized.
Furthermore, an angle adjusting device is arranged at the joint of the structural connecting piece and the radar antenna, the implementation principle of the angle adjusting device is similar to that of the height adjusting device, and an elastic screw, a loosening screw, a fine adjustment angle, a tightening screw and a fixed angle are arranged outside the angle adjusting device, so that the fine adjustment of the angle of the radar antenna on the non-metal structural component is realized.
Further, as a variation, the distance from the radar antenna to the metal structural member is at least 10cm, and in other embodiments, the distance from the radar antenna to the metal structural member may be adjusted according to actual conditions, which is not described herein.
Fig. 2 is a schematic connection structure diagram of a rapid adaptation installation system of a ground penetrating radar according to another embodiment of the present invention. According to another aspect of the invention, a mounting system for rapid adaptation of a ground penetrating radar is provided, which uses a mounting device for rapid adaptation of the ground penetrating radar to realize more accurate paving construction and asphalt thickness monitoring, and further includes at least an ironing board of an asphalt paver, the ironing board extends outwards to form a baffle plate, and the baffle plate is magnetically connected with the other end face of the magnet or magnets.
Further, the magnetic connecting structure formed by the baffle plate, the one or more magnets and the structural plate is clamped by a clamp in a working state, the clamp can be an elastic piece and can also be a clamping piece which is screwed, and as shown in fig. 2, the magnetic connecting structure formed by the baffle plate, the one or more magnets and the structural plate is clamped by the clamp.
Further, the distance from the radar antenna to the baffle is at least 10cm, and in other embodiments, the distance from the radar antenna to the ground penetrating radar vehicle can be adjusted according to actual conditions, which is not repeated herein.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims (11)

1. A mounting device for fast adaptation of a ground penetrating radar is used for detachably adapting to the head or the tail of a motor vehicle, and is characterized by at least comprising a structural plate (1), a structural connecting piece (2) and a radar antenna (3), wherein the structural plate (1) is connected with the radar antenna (3) through the structural connecting piece (2),
One or more magnets (4) are arranged below the structural plate (1), and the structural plate (1) is magnetically connected with one end face of one or more magnets (4).
2. the mounting arrangement, as set forth in claim 1, characterized in that the structural connection (2) comprises at least a metallic structural part (21) and a non-metallic structural part (22), wherein the metallic structural part (21) is arranged near one end of the structural panel (1) and the non-metallic structural part (22) is arranged near one end of the radar antenna (3).
3. The mounting arrangement, as set forth in claim 2, characterized in that the metallic structural part (21) and the non-metallic structural part (22) are perpendicular to each other.
4. The mounting device according to claim 2, wherein a plurality of rows of height adjusting holes (23) are formed in one end of the joint of the metal structural member (21) and the non-metal structural member (22), and one end of the joint of the non-metal structural member (22) and the metal structural member (21) is vertically adjusted in the height direction of the metal structural member (21) in a clamping connection manner.
5. The mounting arrangement, as set forth in claim 2, characterized in that a stepless height adjustment arrangement (24) is provided at any position in the horizontal direction of the non-metallic structural part (22).
6. The mounting arrangement according to claim 1, characterized in that an angle adjustment arrangement (25) is provided at the connection of the structural connection (2) and the radar antenna (3).
7. The mounting arrangement, as set forth in claim 2, characterized in that the distance of the radar antenna (3) from the metal structural part (21) is at least 10 cm.
8. A rapid adaptation mounting system for ground penetrating radar, which employs a mounting device according to any one of claims 1 to 6 to rapidly adapt a motor vehicle, the motor vehicle comprising at least one baffle plate (6) extending outward, wherein the baffle plate (6) is magnetically connected to the other end face of the one or more magnets (4).
9. The mounting system according to claim 8, further comprising a clamp (7), wherein in an operational state, the clamp (7) clamps the magnetic connection formed by the barrier (6), the one or more magnets (4) and the structural panel (1).
10. The mounting system according to claim 8, characterized in that the distance of the radar antenna (3) from the baffle 6 is at least 10 cm.
11. The mounting system of claim 8, wherein the motor vehicle comprises at least an automobile and a work machine vehicle.
CN201910990851.8A 2019-10-18 2019-10-18 Installation device and system for rapid adaptation of ground penetrating radar Pending CN110562150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910990851.8A CN110562150A (en) 2019-10-18 2019-10-18 Installation device and system for rapid adaptation of ground penetrating radar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910990851.8A CN110562150A (en) 2019-10-18 2019-10-18 Installation device and system for rapid adaptation of ground penetrating radar

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CN110562150A true CN110562150A (en) 2019-12-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113879217A (en) * 2020-07-03 2022-01-04 丰田自动车株式会社 Laser radar mounting structure

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007108126A (en) * 2005-10-17 2007-04-26 Mazda Motor Corp Obstacle detection device for vehicle, and its fixture
CN203870250U (en) * 2014-03-05 2014-10-08 大连中睿科技发展有限公司 Vehicle-mounted road hazard and disease early-warning radar system
CN104597442A (en) * 2013-11-01 2015-05-06 无锡慧思顿科技有限公司 High-speed imaging ultra-wideband ground penetrating radar vehicle
CN205944376U (en) * 2016-06-22 2017-02-08 北京市勘察设计研究院有限公司 Ground penetrating radar antenna boom elevating gear
CN206831107U (en) * 2017-03-31 2018-01-02 杨华军 A kind of radar mounting bracket of convenient installation
CN207851273U (en) * 2017-12-28 2018-09-11 长安大学 Portable cart is detected in a kind of Ground Penetrating Radar room
CN109870682A (en) * 2019-01-08 2019-06-11 中铁西南科学研究院有限公司 Complex working condition self-adapting type tunnel-liner non-destructive testing trolley
CN209119311U (en) * 2018-12-19 2019-07-16 中国地质环境监测院 A kind of ground exploring radar antenna bracket for mine environmental geology monitoring
CN209342901U (en) * 2018-11-15 2019-09-03 长安大学 A kind of geologic radar detection auxiliary device
CN210634471U (en) * 2019-10-18 2020-05-29 苏州奇摩智能科技有限公司 Installation device and system for rapid adaptation of ground penetrating radar

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007108126A (en) * 2005-10-17 2007-04-26 Mazda Motor Corp Obstacle detection device for vehicle, and its fixture
CN104597442A (en) * 2013-11-01 2015-05-06 无锡慧思顿科技有限公司 High-speed imaging ultra-wideband ground penetrating radar vehicle
CN203870250U (en) * 2014-03-05 2014-10-08 大连中睿科技发展有限公司 Vehicle-mounted road hazard and disease early-warning radar system
CN205944376U (en) * 2016-06-22 2017-02-08 北京市勘察设计研究院有限公司 Ground penetrating radar antenna boom elevating gear
CN206831107U (en) * 2017-03-31 2018-01-02 杨华军 A kind of radar mounting bracket of convenient installation
CN207851273U (en) * 2017-12-28 2018-09-11 长安大学 Portable cart is detected in a kind of Ground Penetrating Radar room
CN209342901U (en) * 2018-11-15 2019-09-03 长安大学 A kind of geologic radar detection auxiliary device
CN209119311U (en) * 2018-12-19 2019-07-16 中国地质环境监测院 A kind of ground exploring radar antenna bracket for mine environmental geology monitoring
CN109870682A (en) * 2019-01-08 2019-06-11 中铁西南科学研究院有限公司 Complex working condition self-adapting type tunnel-liner non-destructive testing trolley
CN210634471U (en) * 2019-10-18 2020-05-29 苏州奇摩智能科技有限公司 Installation device and system for rapid adaptation of ground penetrating radar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113879217A (en) * 2020-07-03 2022-01-04 丰田自动车株式会社 Laser radar mounting structure

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