A towed integrated geophysical dike inspection vehicle

Abstract

The utility model discloses a kind of towed comprehensive geophysical prospecting dike preventive inspection vehicles, it is related to geophysical prospecting plotting technical field, including towed vehicle body, geophysical prospecting equipment, positioning equipment and meteorological monitoring device;Among them, towed vehicle body includes chassis, carriage, traction lever;Geophysical prospecting equipment includes towed transient electromagnetic instrument, high-density electrical method instrument and ground penetrating radar;Positioning equipment, positioning equipment includes RTK, distance encoder and camera;RTK and meteorological monitoring device are side by side arranged in the front of carriage upper side. Any applicable vehicle type is connected with towed vehicle body by traction hook, i. e. it can be realized that dike is safe and fast and is inspected, staff can be in power carriage real-time analysis data situation, greatly improve the work efficiency of inspection, and for realizing adaptation multiple scene, integrated multiple equipment, high-precision positioning and real-time analysis data provide mobile inspection platform.

Description

Technical Field

[0001] This utility model relates to the field of geophysical exploration and mapping technology, and in particular to a towed integrated geophysical exploration dike inspection vehicle. Background Technology

[0002] As a key flood control facility, dikes need to be quickly and accurately detected to prevent hidden defects such as piping and cracks, otherwise safety accidents may easily occur. Therefore, there is an urgent need for dike safety inspection.

[0003] Current inspections have significant shortcomings: First, fixed geophysical equipment requires manual handling and assembly, which is difficult to transport, poorly adaptable to terrain, and has limited mobility and coverage. Second, dedicated detection vehicles only carry a single device, making it impossible to achieve joint detection of multiple parameters such as transient electromagnetic and ground-penetrating radar, resulting in incomplete disease assessment. Third, single-location positioning is prone to large deviations due to obstruction, and geophysical data is difficult to synchronize with video and mileage, increasing the difficulty of disease interpretation. Fourth, staff need to collect and analyze data on-site, which is labor-intensive and inefficient, making it difficult to meet the needs of large-scale rapid inspections. Utility Model Content

[0004] In view of this, this utility model embodiment provides a towed integrated geophysical exploration dike inspection vehicle to achieve efficient and multi-scenario dike inspection.

[0005] This utility model embodiment provides a towed integrated geophysical exploration dike inspection vehicle, the inspection vehicle including: a towed vehicle body, geophysical exploration equipment, positioning equipment and meteorological monitoring device (13); The towing vehicle body includes a chassis (8), a cargo box (14), and a towing bar (11); The geophysical exploration equipment includes a towed transient electromagnetic instrument (1), a high-density electrical resistivity tomography instrument (15), and a ground-penetrating radar; The positioning device includes an RTK, a distance encoder (9), and a camera (5); The RTK and the meteorological monitoring device (13) are arranged side by side above the front of the carriage (14).

[0006] In some embodiments, the chassis (8) is a center-axle trailer chassis, which is equipped with four wheels and a braking device.

[0007] In some embodiments, the carriage (14) is reserved with corresponding space according to the size of the geophysical equipment, toolbox, generator (17), winch (16) and spare tire (12) for storing the equipment in the transport state. The carriage is equipped with a transient electromagnetic instrument towing bracket (2) and the 100M radar mount (3) at the rear.

[0008] In some embodiments, the towed transient electromagnetic instrument (1) is placed in a first designated position inside the carriage (14) during transport, and is towed by a 1.5m long transient electromagnetic instrument towing bracket (2) at the rear of the carriage (14) during operation.

[0009] In some embodiments, the ground-penetrating radar includes three shielded antennas of different frequencies, specifically: a 100MHz two-dimensional antenna (4), a 200MHz three-dimensional antenna (10), and a 400MHz three-dimensional antenna (7), which are placed in a second designated position inside the carriage (14) during transport. In operation, the 100MHz two-dimensional antenna (4) is arranged under the 100M radar mount (3), the 200MHz three-dimensional antenna (10) is arranged at the bottom rear end of the carriage (14), and the 400MHz three-dimensional antenna (7) is arranged at the front end of the carriage (14).

[0010] In some embodiments, the tow bar (11) is located in front of the tow vehicle body, and the tow bar (11) is equipped with a support wheel, a tow hook lock and a handbrake device.

[0011] In some embodiments, the high-density electrical resistivity instrument (15) is placed in a third designated location within the carriage (14) during transport.

[0012] In some embodiments, limiters and worm gear devices are respectively installed at the bottom front end and bottom rear end of the carriage (14) for adjusting the antenna height of the ground penetrating radar.

[0013] In some embodiments, the distance encoder (9) is mounted on the right front wheel of the carriage (14).

[0014] In some embodiments, there are two cameras (5) installed at the rear top of the carriage (14).

[0015] One technical solution in the above-described embodiments of the present utility model has the following beneficial effects: The inspection vehicle of this utility model includes: a towed vehicle body, geophysical exploration equipment, positioning equipment, and a meteorological monitoring device (13); wherein, the towed vehicle body includes a chassis (8), a carriage (14), and a tow bar (11); the geophysical exploration equipment includes a towed transient electromagnetic instrument (1), a high-density electrical resistivity tomography instrument (15), and a ground penetrating radar; the positioning equipment includes an RTK, a distance encoder (9), and a camera (5); the RTK and the meteorological monitoring device (13) are arranged side by side on the front upper part of the carriage (14). Any applicable vehicle model can be connected to the towed vehicle body through a tow hook to realize rapid inspection of dike safety. Staff can analyze data in real time in the power carriage, which greatly improves the efficiency of inspection work, and provides a mobile inspection platform for adapting to multiple scenarios, integrating multiple devices, high-precision positioning, and real-time data analysis. Attached Figure Description

[0016] Figure 1 Side view of the inspection status of a towed integrated geophysical exploration and dike patrol vehicle; Figure 2 Rear view of the inspection status of a towed integrated geophysical exploration and dike patrol vehicle; Figure 3 Front view of the inspection status of a towed integrated geophysical exploration and dike patrol vehicle; Figure 4 Side view of the transport status of a towed integrated geophysical exploration and dike patrol vehicle; Figure 5 This is a schematic diagram of the internal structure of a towed integrated geophysical exploration and dike inspection vehicle during transportation.

[0017] Reference numerals: 1. Towed transient electromagnetic instrument; 2. Transient electromagnetic instrument towing bracket; 3. 100M radar mount; 4. 100MHz two-dimensional antenna; 5. Camera; 6. LED guide screen; 7. 400MHz three-dimensional antenna; 8. Chassis; 9. Distance encoder; 10. 200MHz three-dimensional antenna; 11. Towing bar; 12. Spare tire; 13. Meteorological monitoring device (in this example, RTK and meteorological monitoring device are integrated); 14. Carriage; 15. High-density electrical resistivity instrument; 16. Winch; 17. Generator. Detailed Implementation

[0018] This utility model addresses the shortcomings of existing dike hazard inspection equipment, such as poor mobility, limited detection methods, low positioning accuracy, difficulty in data synchronization, and weak real-time analysis capabilities. It proposes a towed integrated geophysical dike inspection vehicle, which achieves the goal of rapid mobile inspection by integrating "modular loading + multi-frequency and multi-parameter coordination + high-precision spatiotemporal synchronization + real-time interpretation in the vehicle".

[0019] For example, Figure 1An optional structural diagram of a towed integrated geophysical exploration dike inspection vehicle provided by this utility model, wherein the inspection vehicle includes: a towed vehicle body, geophysical exploration equipment, positioning equipment and meteorological monitoring device (13); The towing vehicle body includes a chassis (8), a cargo box (14), and a towing bar (11); The geophysical exploration equipment includes a towed transient electromagnetic instrument (1), a high-density electrical resistivity tomography instrument (15), and a ground-penetrating radar; The positioning device includes an RTK, a distance encoder (9), and a camera (5); The RTK and the meteorological monitoring device (13) are arranged side by side above the front of the carriage (14).

[0020] Optionally, the chassis (8) is a center-axle trailer chassis, which is equipped with four wheels and a braking device.

[0021] Optionally, the carriage (14) is reserved with corresponding space according to the size of the geophysical equipment, toolbox, generator (17), winch (16) and spare tire (12) for storing the equipment in the transport state. The carriage is equipped with a transient electromagnetic instrument towing bracket (2) and the 100M radar mount (3) at the rear.

[0022] Optionally, the towed transient electromagnetic instrument (1) is placed in a first designated position inside the carriage (14) during transport, and is towed by a 1.5m long transient electromagnetic instrument towing bracket (2) at the rear of the carriage (14) during operation.

[0023] Optionally, the ground-penetrating radar includes three shielded antennas of different frequencies, specifically: a 100MHz two-dimensional antenna (4), a 200MHz three-dimensional antenna (10), and a 400MHz three-dimensional antenna (7), which are placed in a second designated position inside the carriage (14) during transport. In operation, the 100MHz two-dimensional antenna (4) is arranged under the 100M radar mount (3), the 200MHz three-dimensional antenna (10) is arranged at the bottom rear end of the carriage (14), and the 400MHz three-dimensional antenna (7) is arranged at the front end of the carriage (14).

[0024] Optionally, the tow bar (11) is located in front of the tow vehicle body, and the tow bar (11) is equipped with a support wheel, a tow hook lock and a handbrake device.

[0025] Optionally, the high-density electrical resistivity instrument (15) is placed in a third designated location within the carriage (14) during transport.

[0026] Optionally, limiters and worm gear devices are respectively installed at the bottom front end and bottom rear end of the carriage (14) for adjusting the antenna height of the ground penetrating radar.

[0027] Optionally, the distance encoder (9) is mounted on the right front wheel of the carriage (14).

[0028] Optionally, there are two cameras (5), which are installed at the rear top of the carriage (14).

[0029] The solution of this utility model will now be described with specific examples.

[0030] Specifically, this embodiment adopts the following technical solution: 1. The towing dual-axle central axle chassis is equipped with electromagnetic brakes and support wheels. It can be towed by the rear hook of any passenger car, SUV, or pickup truck that complies with traffic regulations. The maximum design speed is 80 km / h, and the turning radius is ≤6 m. It is suitable for complex scenarios such as embankment roads, gravel paths, and grass dam surfaces. 2. The interior of the carriage is laid out in four zones: "equipment, tools, energy, and safety". It is equipped with transient electromagnetic box, high-density electrical resistivity tomography box, ground penetrating radar box, generator compartment and winch compartment. Each compartment uses quick-release guide rails and shock-absorbing ratchet straps, allowing a single person to complete the equipment conversion within 10 minutes. 3. The ground-penetrating radar module is equipped with a 100 MHz two-dimensional shielded antenna (for deep hidden dangers, with a maximum detection depth of ≥15 m), a 200 MHz three-dimensional shielded antenna (for fine mid-level conditions, with a depth of 3–8 m), and a 400 MHz three-dimensional shielded antenna (for high-resolution shallow conditions, with a depth of 0.5–3 m). The three types of antennas are connected to the chassis via three sets of "worm gear + linear guide rail" lifting mechanisms at the front, middle, and rear to achieve stepless adjustment of the ground clearance from 0–200 mm, with a lifting accuracy of ±1 mm, ensuring different coupling conditions such as turf, gravel, and asphalt. 4. Winch function: When the dam needs to use ground penetrating radar to investigate potential hazards on the dam slope, the winch function can be used to replace the traditional manual pulling of the ground penetrating radar with the required antenna frequency from bottom to top. It also has the function of transporting other equipment from the dam slope to the dam top, reducing unnecessary manpower consumption. 5. The transient electromagnetic system adopts a towed separation scheme: during transportation, it is stored in a special pallet at the rear of the vehicle. During operation, it is quickly connected to the rear tow hook of the vehicle via a 1.5m rigid tow rod. The transmitting and receiving coils adopt an equivalent reverse magnetic flux transient electromagnetic device, which can greatly reduce the problem of shallow blind spots. The towing speed is adaptive from 5 to 15 km / h, and the coil height above the ground is adjustable from 100 to 300 mm. Data transmission adopts a wired + wireless form. 6. The high-density electrical resistivity tomography box can store 11 bundles of cables, each bundle of cables can connect up to 10 electrodes, and the maximum electrode spacing is 5m. The test line can be arranged at any time according to the needs of the site. The detection progress and results are transmitted to the workstation for display in real time via wireless function. 7. Positioning and Synchronization System: A Beidou RTK (planar accuracy ≤1 cm+1 ppm, elevation accuracy ≤2 cm+1 ppm) and a mini weather station (wind speed, rainfall, temperature and humidity, air pressure) are installed side by side on the front top of the carriage. A high-precision photoelectric distance encoder (1024 P / R, 0.3 mm / pulse) is installed on the inside of the right front wheel hub. Dual cameras (front view + rear view, 4K@30Hz, with GPS time synchronization) are installed on the rear top of the carriage. All sensors achieve millisecond-level time synchronization through the PPS+PTP protocol. Geophysical data, video, RTK coordinates, and odometer pulses are locally stored on disk in SQLite format and simultaneously available for real-time access by the in-vehicle workstation via gigabit Ethernet. 8. Real-time in-vehicle analysis: A workstation is placed in the rear seat of the tractor, which can display radar profile, TEM multi-track curves, and electrical resistivity tomography profile in real time. It can identify anomalies (voids, piping, cracks, high water content areas, etc.) with AI assistance. AI + human judgment gives the risk level and automatically takes screenshots and marks coordinates. It supports one-click generation of PDF inspection reports. 9. Safety and Environmental Protection: The bottom of the vehicle body is covered with 5 mm anti-slip aluminum plate and anti-corrosion epoxy coating. The generator adopts a silent frequency converter (noise ≤65 dB@7 m). The exhaust gas is treated by three-way catalytic converter and water washing box to meet the National III emission standard. All vehicle wiring harnesses use IP67 aviation plugs to prevent rain and dust. Night inspection is equipped with LED high mast lights (12 V / 24 W) + red flashing warning lights, which comply with road driving and construction site safety regulations.

[0031] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] As shown in Figure 1 to Figure 5 As shown in the figure, this embodiment provides a towed integrated geophysical exploration dike inspection vehicle, including a towed vehicle body, geophysical exploration equipment, positioning equipment and meteorological monitoring device.

[0033] 1. Structure and function of the towing vehicle: The chassis adopts a centrally mounted dual-axle trailer chassis (8), which, together with the braking device, can maintain stability when driving and parking, and is especially suitable for complex terrain around the dike; the front and rear ends of the bottom of the carriage (14) are respectively equipped with limiters and worm gear devices. The limiters are used to fix the ground penetrating radar antenna, and the worm gear device is driven by a motor to realize the raising and lowering of the antenna, which can meet the normal operation of various terrains.

[0034] The carriage (14) is a closed structure, with the interior divided into functional zones: the front section stores the generator (17) and toolbox, the middle section stores the winch (16) and ground-penetrating radar antennas (4, 7, 10), and the rear section stores the high-density electrical resistivity tomography (15) and the towed transient electromagnetic instrument (1); the transient electromagnetic instrument towed bracket (2) can be stably connected to the rear of the carriage.

[0035] The tow hook lock at the front end of the tow bar (11) can be quickly connected to any vehicle with towing function (such as off-road vehicle or pickup truck). The support wheel plays an auxiliary supporting role when parked. The handbrake device is used to fix the vehicle body and prevent it from sliding when parked.

[0036] 2. Switching of working status of geophysical exploration equipment: Ground penetrating radar: During transport, the 100MHz two-dimensional antenna (4), the 200MHz three-dimensional antenna (10) and the 400MHz three-dimensional antenna (7) are all stored in the middle of the carriage; during operation, the 100MHz antenna (4) can be lowered below the chassis (8) through the worm gear device of the 100M radar mount (3) (to detect deep hidden dangers), and the 200MHz (10) and 400MHz antenna (7) can be lowered to the rear and front sides of the carriage (to detect shallow and boundary diseases). The antennas are connected to the data processing terminal in the carriage through cables to transmit detection signals in real time.

[0037] Towed transient electromagnetic instrument (1): During transportation, it is placed in a designated area at the rear of the carriage; during operation, it is connected to the carriage through a 1.5m long transient electromagnetic instrument towing bracket (2), the device probe contacts the ground, and moves with the vehicle to detect abnormal conductivity inside the dike (such as piping channels), and the data is transmitted to the terminal through wired or wireless modules.

[0038] High-density electrical resistivity instrument (15): During transportation, it is stored in a designated area at the rear of the carriage. When a separate measuring point needs to be set up, the staff takes it out of the carriage, connects it to the electrode array through a cable, and completes the fine detection of the local area in conjunction with the positioning equipment.

[0039] 3. Coordinated operation of positioning and meteorological monitoring: Positioning equipment: RTK (Real-time Dynamic Differential Positioning) (13) receives Beidou satellite signals and forms a high-precision positioning (error ≤ 5cm) above the front of the carriage; distance encoder (9) is installed on the right front wheel and records the driving mileage as the wheel rotates, with an accuracy of 0.1m; two cameras (5) are symmetrically installed above the rear of the carriage to capture the rear and side scenes of the vehicle body respectively. The video data is synchronized with the geophysical exploration data and mileage information through timestamps, which facilitates the accurate correspondence of the location of the defects in the later stage.

[0040] Meteorological monitoring device (13): Installed alongside RTK (13), it collects parameters such as wind speed (range 0-30m / s) and rainfall (resolution 0.2mm) in real time. The data is incorporated into the data processing system to correct the influence of different meteorological conditions on geophysical signals (such as antenna jitter error caused by strong winds).

[0041] 4. Inspection process: Equipment preparation: Connect the towing vehicle to the tractor via the towing bar (11), check the equipment inside the vehicle to ensure that auxiliary equipment such as generator (17) and winch (16) are operating normally.

[0042] On-site deployment: After arriving at the inspection starting point, the ground-penetrating radar antenna (4, 7, 10) is lowered through the worm gear device. The transient electromagnetic instrument (1) is connected to the carriage through the transient electromagnetic instrument towing bracket (2). The positioning equipment and meteorological monitoring device (13) are started, and the parameter settings of the data acquisition software (such as detection depth and sampling rate) are completed.

[0043] Data acquisition: The power vehicle tows the vehicle body along the embankment, and the ground-penetrating radar (4, 7, 10) and transient electromagnetic instrument (1) collect data synchronously. The positioning equipment records the real-time location, mileage and video, and the meteorological data is uploaded to the terminal in real time.

[0044] Real-time analysis: Inside the power vehicle, staff can view the results of joint detection by multiple devices through a data processing terminal, and mark abnormal areas by combining video footage (such as the superposition area of ​​strong reflection signals displayed by ground penetrating radar and low-resistance anomalies of transient electromagnetic waves).

[0045] Equipment recovery: After the inspection, raise the ground-penetrating radar antenna, store the transient electromagnetic instrument in the compartment, turn off all equipment, and secure the vehicle body with the handbrake to complete the inspection.

[0046] This implementation method provides a mobile inspection platform for the integrated "transportation-detection-analysis" of dike inspection through integrated design and collaborative working mechanism. It can effectively improve the detection efficiency and accuracy of hidden defects and is suitable for various dike terrains.

[0047] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A towed integrated geophysical exploration and dike inspection vehicle, characterized in that, The inspection vehicle includes: a tow vehicle body, geophysical exploration equipment, positioning equipment and meteorological monitoring device (13); The towing vehicle body includes a chassis (8), a cargo box (14), and a towing bar (11); The geophysical exploration equipment includes a towed transient electromagnetic instrument (1), a high-density electrical resistivity tomography instrument (15), and a ground-penetrating radar; The positioning device includes an RTK, a distance encoder (9), and a camera (5); The RTK and the meteorological monitoring device (13) are arranged side by side above the front of the carriage (14).

2. The towed integrated geophysical exploration and dike inspection vehicle according to claim 1, characterized in that, The chassis (8) is a center-axle trailer chassis, which is equipped with four wheels and a braking device.

3. The towed integrated geophysical exploration and dike inspection vehicle according to claim 1, characterized in that, The carriage (14) is reserved with corresponding space according to the size of the geophysical equipment, toolbox, generator (17), winch (16) and spare tire (12) for storing the equipment in the transport state. The carriage is equipped with a transient electromagnetic instrument towing bracket (2) and a 100M radar mount (3) at the rear.

4. A towed integrated geophysical exploration and dike inspection vehicle according to claim 3, characterized in that, When in transport mode, the towed transient electromagnetic instrument (1) is placed in the first designated position inside the carriage (14). When in working mode, it is towed by a 1.5m long transient electromagnetic instrument towing bracket (2) at the rear of the carriage (14).

5. A towed integrated geophysical exploration and dike inspection vehicle according to claim 3, characterized in that, The ground-penetrating radar includes three shielded antennas of different frequencies, specifically: a 100MHz two-dimensional antenna (4), a 200MHz three-dimensional antenna (10), and a 400MHz three-dimensional antenna (7), which are placed in the second designated position inside the carriage (14) during transport. In operation, the 100MHz two-dimensional antenna (4) is arranged under the 100M radar mount (3), the 200MHz three-dimensional antenna (10) is arranged at the bottom rear end of the carriage (14), and the 400MHz three-dimensional antenna (7) is arranged at the front end of the carriage (14).

6. A towed integrated geophysical exploration and dike inspection vehicle according to claim 1, characterized in that, The tow bar (11) is located in front of the tow vehicle body, and the tow bar (11) is equipped with a support wheel, a tow hook lock and a handbrake device.

7. A towed integrated geophysical exploration and dike inspection vehicle according to claim 1, characterized in that, The high-density electrical resistivity instrument (15) is placed in a third designated position inside the carriage (14) during transport.

8. A towed integrated geophysical exploration and dike inspection vehicle according to claim 1, characterized in that, Limiters and worm gear devices are respectively installed at the bottom front end and bottom rear end of the carriage (14) for adjusting the antenna height of the ground penetrating radar.

9. A towed integrated geophysical exploration and dike inspection vehicle according to claim 1, characterized in that, The distance encoder (9) is installed on the right front wheel of the carriage (14).

10. A towed integrated geophysical exploration and dike inspection vehicle according to any one of claims 1 to 9, characterized in that, There are two cameras (5), which are installed at the rear top of the carriage (14).

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