Movable support for pipe network surveying and mapping and using method thereof

Abstract

The invention relates to the technical field of surveying and mapping engineering, in particular to a movable support for pipe network surveying and mapping and a using method thereof. According to the technical scheme, the movable support for pipe network surveying and mapping comprises a movable support bottom frame, a downward pressing assembly, a fixed support, a supporting table, a magnetorheological elastomer damping layer, a bionic cobweb pressure sensing circuit and a detection assembly, the downward pressing assembly is arranged on the surface of the movable support bottom frame, and the downward pressing assembly comprises a fixed base and a hydraulic rod; an intelligent active damping structure is adopted, a damping system with real-time feedback adjusting capacity is constructed through the synergistic effect of the bionic cobweb pressure sensing network and the magneto-rheological elastomer, when pressure distribution changes, the system can complete the whole process from signal collection to parameter adjustment in an extremely short time, and the damping effect of the system is greatly improved. Dynamic matching of supporting rigidity is ensured, the anti-interference capacity of the support under the complex working condition is remarkably improved, and a continuous and stable working platform is provided for surveying and mapping equipment.

Description

Technical Field

[0001] This invention relates to the field of surveying and mapping engineering technology, and in particular to a mobile support for pipeline surveying and mapping and its usage method. Background Technology

[0002] The mobile support for pipeline surveying is a movable support device specifically designed for underground pipeline measurement and mapping operations. Its core function is to provide a stable, adjustable, and intelligent support platform for surveying instruments, ensuring the acquisition of high-precision surveying data in complex environments.

[0003] Existing mobile supports for pipeline mapping mostly adopt passive vibration reduction structures, which cannot adjust the support characteristics in real time according to changes in actual working conditions. When encountering sudden vibrations or uneven ground settlement, they lack a rapid response mechanism, resulting in displacement errors in the mapping equipment, which seriously affects the accuracy of data acquisition and makes it difficult to adapt to complex and ever-changing field operation environments.

[0004] Existing mobile supports for pipeline surveying mostly employ passive damping structures, which cannot adjust support characteristics in real time according to changes in actual working conditions. When encountering sudden vibrations or uneven ground settlement, they lack a rapid response mechanism, leading to displacement errors in the surveying equipment and severely impacting data acquisition accuracy. This makes them unsuitable for complex and ever-changing field environments. This solution addresses these issues by employing an intelligent active damping structure. Through the synergistic effect of a biomimetic spiderweb pressure sensor network and a magnetorheological elastomer, a damping system with real-time feedback and adjustment capabilities is constructed. When pressure distribution changes, the system can complete the entire process from signal acquisition to parameter adjustment in a very short time, ensuring dynamic matching of support stiffness. This significantly improves the support's anti-interference capability under complex working conditions and provides a continuously stable working platform for the surveying equipment. This solution can automatically optimize damping parameters according to actual load conditions, ensuring consistent damping effects and extending the service life of key components. Summary of the Invention

[0005] To overcome the problems of existing mobile supports for pipeline surveying, which mostly adopt passive vibration reduction structures and cannot adjust the support characteristics in real time according to changes in actual working conditions, and lack a rapid response mechanism when encountering sudden vibrations or uneven ground settlement, resulting in displacement errors in surveying equipment, seriously affecting the accuracy of data acquisition, and making it difficult to adapt to complex and ever-changing field operation environments.

[0006] The technical solution of this invention is as follows: a mobile support for pipeline mapping, comprising a mobile support base, a pressing component, a fixed support, a support platform, a magnetorheological elastomer damping layer, a biomimetic spider web pressure sensing circuit, and a detection component. The pressing component is disposed on the surface of the mobile support base, and includes a fixed base and a hydraulic rod. The fixed base is disposed on the surface of the mobile support base, and a hydraulic rod is disposed on the top surface of the fixed base. A fixed support is sleeved on the outer side of the hydraulic rod. A support platform is disposed on one side of the fixed support, and a magnetorheological elastomer damping layer is disposed inside the support platform. A biomimetic spider web pressure sensing circuit is disposed inside the magnetorheological elastomer damping layer. Pressure analyzers are disposed on both sides of the support platform. A multi-point pressure damper is disposed on the bottom surface of the biomimetic spider web pressure sensing circuit. A support base is disposed on the bottom surface of the multi-point pressure damper. A sensing pad is disposed on the inner side of the support base. The pressure analyzer is connected to the sensing pad. A spherical counterweight is disposed inside the support base, and a detection component is disposed on the bottom surface of the support base.

[0007] Preferably, the pipeline mapping equipment is clamped and fixed by a pressing component, the installation position of the support platform is adjusted by a fixed bracket, the magnetorheological elastomer damping layer is installed on the support platform, the damping coefficient of the support is dynamically adjusted by the magnetorheological elastomer damping layer to adapt to different vibration frequencies, the impact force on the surface of the magnetorheological elastomer damping layer is dispersed by a biomimetic spider web pressure sensing circuit, local impact is dispersed by preload, the vibration transmitted from above is eliminated by a multi-point pressure damper in multiple areas, the multi-point pressure damper is supported by a support base, a spherical counterweight is shaken within the support base according to the equipment offset angle, thereby impacting the sensing pad, the displacement of the spherical counterweight is analyzed by the sensing pad, the local magnetic field of the magnetorheological elastomer damping layer is dynamically adjusted by a pressure analyzer, and the bottom surface is scanned and detected by a detection component to identify the optimal support point position.

[0008] Preferably, the pressing assembly also includes a pressing seat and a positioning head. The pressing seat is provided at the top of the hydraulic rod, and the positioning head is provided on the bottom surface of the pressing seat. There are two sets of positioning heads.

[0009] Preferably, the detection assembly includes a support bracket, a mounting platform, and a grid spot projector. The support bracket is provided on the bottom surface of the support base, the mounting platform is provided on one side of the support bracket, and the grid spot projector is provided on the bottom surface of the mounting platform.

[0010] Preferably, a rotating platform is provided at each of the four corners of the bottom surface of the mobile support base, the bottom surface of the rotating platform is provided with a moving wheel, and the top surface of the mobile support base is provided with an adjusting bolt, the bottom end of the adjusting bolt being threadedly connected to the rotating platform.

[0011] Preferably, the bottom surface of the mobile support base is provided with a hydraulic platform, the bottom end of the hydraulic platform is provided with a fixing pin plate, and the top surface of the mobile support base is provided with a driver.

[0012] Preferably, a mounting base is provided on one side of the fixed bracket, and a control panel is provided on one side of the mounting base.

[0013] Preferably, the pressure analyzer comprises the following units:

[0014] A11: Signal acquisition unit, including high-sensitivity strain gauges, multi-channel signal amplifiers and anti-interference filters, is used to acquire pressure distribution data in real time and convert it into a processable electrical signal;

[0015] A12: Data processing unit, including an embedded microprocessor, dynamic storage chip and AD conversion module, used to analyze pressure distribution characteristics and calculate the magnetic field adjustment parameters of magnetorheological elastomer;

[0016] A13: Magnetic field control unit, including an adjustable electromagnetic coil array, a current drive module, and a heat sink assembly, used to dynamically adjust the damping characteristics of the magnetorheological elastomer based on analysis results.

[0017] Preferably, the pressure analyzer includes the following steps during operation:

[0018] S11: A high-sensitivity strain gauge detects the deformation of the biomimetic spider web pressure sensing circuit, generating a microvolt-level voltage signal;

[0019] S12: A multi-channel signal amplifier amplifies weak signals, and an anti-interference filter removes 50Hz power frequency noise and environmental electromagnetic interference;

[0020] S13: The AD conversion module converts analog signals into digital signals with 16-bit precision and a 1kHz sampling rate. The dynamic storage chip caches pressure data within 10 seconds to form a time-series sample.

[0021] S14: Embedded microprocessor identifies the data source for each channel;

[0022] S15: The microprocessor runs a finite element analysis algorithm to calculate the spatial distribution of pressure in the magnetorheological elastomer layer, and combines the offset data of the spherical counterweight to establish a dynamic load model;

[0023] S16: Call the magnetorheological constitutive model database to match the optimal damping coefficient for the current pressure-frequency combination;

[0024] S17: Calculate the required magnetic field strength for each region based on the preset PID control algorithm, and generate an electromagnetic coil drive parameter table;

[0025] S18: The current drive module outputs a PWM signal to drive an adjustable electromagnetic coil array;

[0026] S19: The coils are activated sequentially according to their zone numbers, forming a gradient magnetic field within the magnetorheological elastic body. The heat dissipation fins maintain the coil temperature at ≤60℃ through forced air cooling.

[0027] S110: The strain gauge collects pressure data after adjustment and compares it with the expected model. If the error is >15%, the adaptive learning algorithm is triggered to update the constitutive model parameters, and the adjustment log is displayed on the console.

[0028] S111: When continuous excessive pressure is detected, activate the safety protocol, increase the magnetic field in the corresponding area to the maximum value, and send an alarm to the console;

[0029] S112: If the signal is lost, automatically switch to the backup channel or the global uniform damping mode;

[0030] S113: Stores pressure-magnetic field regulation records to an SD card and periodically uploads the data to the cloud for digital twin model training. It optimizes PID control parameters based on historical data to improve the efficiency of subsequent adjustments.

[0031] Preferably, the grid spot projector comprises the following units:

[0032] A21: Optical projection unit, including a laser diode array, diffractive optical elements, and a focusing lens group, for generating a standardized grid of light spots for ground scanning;

[0033] A22: Image acquisition unit, including a CMOS industrial camera, infrared cut-off filter, and image-stabilized gimbal bracket, used to record real-time data on light spot distortion caused by ground deformation;

[0034] A23: 3D reconstruction unit, including point cloud processing chip, terrain modeling software and data output interface, used to analyze ground flatness and locate the best support point through spot distortion.

[0035] A method for using a mobile support for pipeline network surveying includes the following steps:

[0036] S21: Push the mobile support to the target surveying area using the moving wheels, manually rotate the adjusting bolt 203 to adjust the height of the rotating platform, and make the support initially stable;

[0037] S22: Start the grid spot projector to project grid spots onto the ground. The CMOS industrial camera collects ground spot distortion data, and the point cloud processing chip calculates the ground flatness.

[0038] S23: The console displays the optimal fulcrum position; adjust the bracket position to align it with the best support area.

[0039] S24: Start the driver to lower the hydraulic platform, inserting the fixed needle plate into the ground. Check if the bracket is stable, and adjust the depth of the fixed needle plate if necessary.

[0040] S25: Place the pipeline surveying equipment on the support platform, activate the hydraulic rod to lower the lower pressure seat, and use the positioning head to lock the equipment position;

[0041] S26: The biomimetic spider web pressure sensing circuit detection equipment detects the initial pressure distribution, analyzes the data using a pressure analyzer, adjusts the magnetic field strength of the magnetorheological elastomer damping layer, and optimizes the damping coefficient;

[0042] S27: The spherical counterweight rolls within the support base as the equipment vibrates, impacting the sensing pad;

[0043] S28: The pressure analyzer monitors offset data in real time and dynamically adjusts damping parameters;

[0044] S29: If ground subsidence or equipment shifts, the grid spot projector rescans the ground, updates the optimal fulcrum, and manually or automatically adjusts the hydraulic platform or adjusting bolts to maintain horizontal stability;

[0045] S210: Stop the surveying equipment, raise the hydraulic rod, release the lower pressure seat, and remove the equipment;

[0046] S211: The driver retracts the fixed needle plate and raises the hydraulic platform;

[0047] S212: Rotate the adjusting bolt to lower the rotating platform, allowing the moving wheels to contact the ground and push the support to detach.

[0048] The beneficial effects of this invention are:

[0049] 1. Existing mobile supports for pipeline surveying mostly adopt passive damping structures, which cannot adjust the support characteristics in real time according to changes in actual working conditions. When encountering sudden vibrations or uneven ground settlement, they lack a rapid response mechanism, resulting in displacement errors in the surveying equipment, which seriously affects the accuracy of data acquisition and makes it difficult to adapt to complex and ever-changing field working environments. This solution adopts an intelligent active damping structure, which constructs a damping system with real-time feedback adjustment capability through the synergistic effect of a biomimetic spider web pressure sensing network and a magnetorheological elastomer. When the pressure distribution changes, the system can complete the entire process from signal acquisition to parameter adjustment in a very short time, ensuring dynamic matching of support stiffness, significantly improving the anti-interference capability of the support under complex working conditions, and providing a continuous and stable working platform for the surveying equipment. This solution can automatically optimize damping parameters according to actual load conditions, which not only ensures the consistency of damping effect but also extends the service life of key components.

[0050] 2. Existing mobile supports for pipeline surveying typically rely on manual experience to determine placement, lacking scientific methods for assessing ground bearing capacity. Operators cannot accurately identify potentially unstable areas on the ground, and improper support selection can easily lead to support tilting or sinking, reducing work efficiency and increasing operational risks. This solution, by setting up an intelligent positioning structure based on optical scanning, uses high-precision grid spot analysis and 3D terrain reconstruction technology to achieve a quantitative assessment of ground bearing characteristics. The device can automatically identify ideal support areas with uniform geological structure and high compressive strength, fundamentally avoiding the randomness of human judgment. This not only improves support deployment efficiency but also eliminates safety hazards caused by improper support. Attached Figure Description

[0051] Figure 1 The diagram shown is a first three-dimensional structural schematic of a mobile support for pipeline mapping according to the present invention.

[0052] Figure 2 The diagram shown is a second three-dimensional structural schematic of a mobile support for pipeline mapping according to the present invention.

[0053] Figure 3 The diagram shown is a three-dimensional structural representation of the bottom surface of a mobile support for pipeline mapping according to the present invention.

[0054] Figure 4 The diagram shown is a partial three-dimensional structural schematic of a mobile support for pipeline mapping according to the present invention.

[0055] Figure 5 The diagram shown is a flowchart illustrating a method for using a mobile support for pipeline surveying according to the present invention.

[0056] Explanation of reference numerals in the attached drawings: 1. Movable support base; 201. Rotating table; 202. Moving wheel; 203. Adjusting bolt; 301. Hydraulic table; 302. Fixed needle plate; 303. Driver; 401. Fixed base; 402. Hydraulic rod; 403. Lower pressure seat; 404. Positioning head; 501. Fixed support; 502. Support platform; 503. Magnetorheological elastomer damping layer; 504. Bionic spider web pressure sensing circuit; 505. Pressure analyzer; 506. Multi-point pressure damper; 507. Support base; 508. Sensing pad; 509. Spherical counterweight; 601. Support bracket; 602. Mounting platform; 603. Grid spot projector; 701. Mounting base; 702. Control console. Detailed Implementation

[0057] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0058] Please see Figure 2 and Figure 4This invention provides an embodiment: a mobile support for pipeline surveying, comprising a mobile support base 1, a pressing component, a fixed support 501, a support platform 502, a magnetorheological elastomer damping layer 503, a biomimetic spider web pressure sensing circuit 504, and a detection component. The pressing component is disposed on the surface of the mobile support base 1. The pressing component includes a fixed base 401 and a hydraulic rod 402. The fixed base 401 is disposed on the surface of the mobile support base 1, and the hydraulic rod 402 is disposed on the top surface of the fixed base 401. The fixed support 501 is sleeved on the outer side of the hydraulic rod 402. The support platform 502 is disposed on one side of the fixed support 501. The support platform 502 has a magnetorheological elastomer damping layer 503 inside, and a biomimetic spider web pressure sensing circuit 504 inside the magnetorheological elastomer damping layer 503. Pressure analyzers 505 are set on both sides of the support platform 502. A multi-point pressure damper 506 is set on the bottom surface of the biomimetic spider web pressure sensing circuit 504. A support base 507 is set on the bottom surface of the multi-point pressure damper 506. A sensing pad 508 is set on the inner side of the support base 507. The pressure analyzer 505 is connected to the sensing pad 508. A spherical counterweight 509 is set inside the support base 507. A detection component is set on the bottom surface of the support base 507.

[0059] The pipeline mapping equipment is clamped and fixed by the pressing component. The installation position of the support platform 502 is adjusted by the fixing bracket 501. The magnetorheological elastomer damping layer 503 is installed on the support platform 502. The damping coefficient of the support is dynamically adjusted by the magnetorheological elastomer damping layer 503 to adapt to different vibration frequencies. The impact force on the surface of the magnetorheological elastomer damping layer 503 is dispersed by the biomimetic spider web pressure sensing circuit 504. The preload is used to disperse local impacts, and the multi-point pressure damper 5... 06. Multi-area vibration damping is eliminated by supporting the multi-point pressure damper 506 via the support base 507. The spherical counterweight 509 swings within the support base 507 according to the equipment's offset angle, thus impacting the sensing pad 508. The displacement of the spherical counterweight 509 is analyzed by the sensing pad 508. The local magnetic field of the magnetorheological elastomer damping layer 503 is dynamically adjusted by the pressure analyzer 505. The bottom surface is scanned and detected by the detection component to identify the optimal fulcrum position.

[0060] Please see Figure 1 and Figure 3 In this embodiment, the pressing assembly also includes a pressing seat 403 and a positioning head 404. The pressing seat 403 is provided at the top of the hydraulic rod 402, and the positioning head 404 is provided on the bottom surface of the pressing seat 403. There are two sets of positioning heads 404. In use, the pressing seat 403 is used to press and fix the pipeline surveying equipment, and the positioning head 404 is used to position the pipeline surveying equipment.

[0061] Preferably, the detection assembly includes a support bracket 601, a mounting platform 602, and a grid spot projector 603. The support bracket 601 is provided on the bottom surface of the support base 507, the mounting platform 602 is provided on one side of the support bracket 601, and the grid spot projector 603 is provided on the bottom surface of the mounting platform 602. In use, the mounting platform 602 is installed through the support bracket 601, the grid spot projector 603 is installed through the mounting platform 602, and the grid spot projector 603 projects the grid spot onto the ground to calculate the position of the optimal support point.

[0062] Preferably, the four corners of the bottom surface of the mobile support base 1 are provided with a rotating platform 201, the bottom surface of the rotating platform 201 is provided with a moving wheel 202, and the top surface of the mobile support base 1 is provided with an adjusting bolt 203. The bottom end of the adjusting bolt 203 is threadedly connected to the rotating platform 201. In use, the height of the rotating platform 201 is adjusted by rotating the adjusting bolt 203, and the moving wheel 202 is rotated and installed by the rotating platform 201, so that the mobile support base 1 can be moved easily by the moving wheel 202.

[0063] Preferably, the bottom surface of the mobile support base 1 is provided with a hydraulic platform 301, the bottom end of the hydraulic platform 301 is provided with a fixing needle plate 302, and the top surface of the mobile support base 1 is provided with a driver 303. In use, the driver 303 drives the hydraulic platform 301 to rise and fall, and the hydraulic platform 301 drives the fixing needle plate 302 to rise and fall, and the fixing needle plate 302 fixes the mobile support base 1 to a suitable working location.

[0064] Preferably, a mounting base 701 is provided on one side of the fixed bracket 501, and a control console 702 is provided on one side of the mounting base 701. In use, the control console 702 is installed through the mounting base 701, and the entire device is controlled through the control console 702.

[0065] Preferably, the pressure analyzer 505 comprises the following units:

[0066] A11: Signal acquisition unit, including high-sensitivity strain gauges, multi-channel signal amplifiers and anti-interference filters, is used to acquire pressure distribution data in real time and convert it into a processable electrical signal;

[0067] A12: Data processing unit, including an embedded microprocessor, dynamic storage chip and AD conversion module, used to analyze pressure distribution characteristics and calculate the magnetic field adjustment parameters of magnetorheological elastomer;

[0068] A13: Magnetic field control unit, including an adjustable electromagnetic coil array, a current drive module, and a heat sink assembly, used to dynamically adjust the damping characteristics of the magnetorheological elastomer based on analysis results.

[0069] Preferably, the pressure analyzer 505 includes the following steps during operation:

[0070] S11: A high-sensitivity strain gauge detects the deformation of the biomimetic spider web pressure sensing circuit 504, generating a microvolt-level voltage signal;

[0071] S12: A multi-channel signal amplifier amplifies weak signals, and an anti-interference filter removes 50Hz power frequency noise and environmental electromagnetic interference;

[0072] S13: The AD conversion module converts analog signals into digital signals with 16-bit precision and a 1kHz sampling rate. The dynamic storage chip caches pressure data within 10 seconds to form a time-series sample.

[0073] S14: Embedded microprocessor identifies the data source for each channel;

[0074] S15: The microprocessor runs a finite element analysis algorithm to calculate the spatial distribution of pressure in the magnetorheological elastomer layer, and combines the offset data of the spherical counterweight 509 to establish a dynamic load model;

[0075] S16: Call the magnetorheological constitutive model database to match the optimal damping coefficient for the current pressure-frequency combination;

[0076] S17: Calculate the required magnetic field strength for each region based on the preset PID control algorithm, and generate an electromagnetic coil drive parameter table;

[0077] S18: The current drive module outputs a PWM signal to drive an adjustable electromagnetic coil array;

[0078] S19: The coils are activated sequentially according to their zone numbers, forming a gradient magnetic field within the magnetorheological elastic body. The heat dissipation fins maintain the coil temperature at ≤60℃ through forced air cooling.

[0079] S110: The pressure data after the strain gauge adjustment is collected and compared with the expected model. If the error is >15%, the adaptive learning algorithm is triggered to update the constitutive model parameters, and the adjustment log is displayed through console 702.

[0080] S111: When continuous over-limit pressure is detected, activate the safety protocol, increase the magnetic field of the corresponding area to the maximum value, and send an alarm to console 702;

[0081] S112: If the signal is lost, automatically switch to the backup channel or the global uniform damping mode;

[0082] S113: Stores pressure-magnetic field regulation records to an SD card and periodically uploads the data to the cloud for digital twin model training. It optimizes PID control parameters based on historical data to improve the efficiency of subsequent adjustments.

[0083] Preferably, the grid spot projector 603 comprises the following units:

[0084] A21: Optical projection unit, including a laser diode array, diffractive optical elements, and a focusing lens group, for generating a standardized grid of light spots for ground scanning;

[0085] A22: Image acquisition unit, including a CMOS industrial camera, infrared cut-off filter, and image-stabilized gimbal bracket, used to record real-time data on light spot distortion caused by ground deformation;

[0086] A23: 3D reconstruction unit, including point cloud processing chip, terrain modeling software and data output interface, used to analyze ground flatness and locate the best support point through spot distortion.

[0087] Please see Figure 5 In this embodiment, a method for using a mobile support for pipeline network surveying includes the following steps:

[0088] S21: Push the mobile support to the target surveying area using the moving wheel 202, manually rotate the adjusting bolt 203 to adjust the height of the rotating table 201, so that the support is initially stable;

[0089] S22: Start the grid spot projector 603 to project the grid spot onto the ground. The CMOS industrial camera collects the ground spot distortion data, and the point cloud processing chip calculates the ground flatness.

[0090] S23: Console 702 displays the optimal fulcrum position; adjust the bracket position to align it with the best support area.

[0091] S24: Start the driver 303 to drive the hydraulic table 301 to descend, so that the fixed needle plate 302 is inserted into the ground. Check whether the bracket is stable, and adjust the depth of the fixed needle plate 302 if necessary;

[0092] S25: Place the pipeline surveying equipment on the support platform 502, activate the hydraulic rod 402 to lower the lower pressure seat 403, and use the positioning head 404 to lock the equipment position;

[0093] S26: The biomimetic spider web pressure sensing circuit 504 detects the initial pressure distribution of the device, the pressure analyzer 505 analyzes the data, adjusts the magnetic field strength of the magnetorheological elastomer damping layer 503, and optimizes the damping coefficient;

[0094] S27: The spherical counterweight 509 rolls within the support base 507 as the equipment vibrates, impacting the sensing pad 508;

[0095] S28: Pressure analyzer 505 monitors offset data in real time and dynamically adjusts damping parameters;

[0096] S29: If ground subsidence or equipment shift occurs, the grid spot projector 603 rescans the ground, updates the optimal fulcrum, and manually or automatically adjusts the hydraulic platform 301 or adjusting bolts 203 to maintain horizontal stability;

[0097] S210: Stop the operation of the surveying equipment, raise the hydraulic rod 402, release the lower pressure seat 403, and remove the equipment;

[0098] S211: The driver 303 retracts the fixed needle plate 302 and raises the hydraulic table 301;

[0099] S212: Rotate the adjusting bolt 203 to lower the rotating platform 201, so that the moving wheel 202 contacts the ground and pushes the support to be removed.

[0100] Example 1

[0101] Background: A city's underground pipeline renovation project required a full-line survey of the old drainage pipeline network. The geological conditions in the project area were complex, including various soil layers such as soft soil and backfill soil, and some sections experienced continuous vibration (due to nearby subway construction). Traditional surveying supports exposed two major problems in this project: first, the instability of the surveying instruments led to excessive data errors (average deviation of ±3.2mm); second, support displacement accidents caused by ground subsidence occurred frequently (4 emergency repositioning incidents occurred in a single month).

[0102] Implementation steps:

[0103] S31: After the operator moves the support to the test area, the grid spot projector 603 automatically scans the ground within a radius of 2m and identifies stable areas with a bearing capacity of 150kPa or higher;

[0104] S32: The hydraulically fixed needle plate 302 is inserted into the selected point with a penetration force of 20kN, while the adjusting bolt 203 compensates for the ground inclination of ±5°;

[0105] S33: The initial damping coefficient of the magnetorheological elastomer damping layer 503 is set to 800 N·s / m;

[0106] S34: When a nearby subway train passes by, causing a 12Hz main frequency vibration, the pressure analyzer 505 increases the local damping to 1200 N·s / m within 0.1 seconds;

[0107] S35: The spherical counterweight 509 monitors the support deflection of 0.8° in real time, and the system automatically adjusts the magnetic field strength in the corresponding quadrant;

[0108] S36: Automatically initiates ground re-survey every 30 minutes, adjusting the fulcrum position a total of 3 times;

[0109] S37: Pressure analyzer 505 recorded that the maximum single-point pressure fluctuation decreased from the initial 420N to the corrected 280N.

[0110] Data comparison table:

[0111] Performance indicators Traditional stent This solution supports the bracket. Improvement effect Vibration resistance It can only attenuate vibrations below 6Hz. Adaptable to vibrations across the entire frequency range of 3-30Hz Frequency response range increased by 5 times Positioning accuracy Manual judgment of ±50mm error Optical positioning ±2mm error 25 times improvement in accuracy Reset response speed Manual intervention required (≥5 minutes) Automatic compensation (≤30 seconds) Response efficiency improved by 10 times Data pass rate 82.3% 98.7% Quality defects reduced by 84% Single-point operation time Requires 2 people to operate (120 minutes / point) Single-player operation (75 minutes / hour) Work efficiency increased by 38%

[0112] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A mobile support for pipeline network surveying; characterized in that: The device includes a movable support base (1), a pressing component, a fixed support (501), a support platform (502), a magnetorheological elastomer damping layer (503), a biomimetic spider web pressure sensing circuit (504), and a detection component. The surface of the movable support base (1) is provided with a pressing component, which includes a fixed base (401) and a hydraulic rod (402). The surface of the movable support base (1) is provided with a fixed base (401), and the top surface of the fixed base (401) is provided with a hydraulic rod (402). The fixed support (501) is sleeved on the outside of the hydraulic rod (402). The support platform (502) is provided on one side of the fixed support (501), and the interior of the support platform (502) is provided with a magnetorheological elastomer damping layer (503). A variable elastic body damping layer (503) is provided inside the magnetorheological elastic body damping layer (503). A biomimetic spider web pressure sensing circuit (504) is provided inside the layer. A pressure analyzer (505) is provided on both sides of the support platform (502). A multi-point pressure damper (506) is provided on the bottom surface of the biomimetic spider web pressure sensing circuit (504). A support base (507) is provided on the bottom surface of the multi-point pressure damper (506). A sensing pad (508) is provided on the inner side of the support base (507). The pressure analyzer (505) is connected to the sensing pad (508). A spherical counterweight (509) is provided inside the support base (507). A detection component is provided on the bottom surface of the support base (507).

2. The mobile support for pipeline surveying according to claim 1, characterized in that: The pressing assembly also includes a pressing seat (403) and a positioning head (404). The pressing seat (403) is provided at the top of the hydraulic rod (402), and the positioning head (404) is provided on the bottom surface of the pressing seat (403). There are two sets of positioning heads (404).

3. A mobile support for pipeline surveying according to claim 1, characterized in that: The detection assembly includes a support bracket (601), a mounting platform (602), and a grid spot projector (603). The support bracket (601) is provided on the bottom surface of the support base (507), the mounting platform (602) is provided on one side of the support bracket (601), and the grid spot projector (603) is provided on the bottom surface of the mounting platform (602).

4. A mobile support for pipeline surveying according to claim 1, characterized in that: The four corners of the bottom surface of the mobile support base (1) are provided with rotating platforms (201), the bottom surface of the rotating platforms (201) is provided with moving wheels (202), and the top surface of the mobile support base (1) is provided with adjusting bolts (203). The bottom end of the adjusting bolts (203) is threadedly connected to the rotating platforms (201).

5. A mobile support for pipeline surveying according to claim 1, characterized in that: A hydraulic platform (301) is provided on the bottom surface of the mobile support base (1), a fixed needle plate (302) is provided at the bottom end of the hydraulic platform (301), and a driver (303) is provided on the top surface of the mobile support base (1).

6. A mobile support for pipeline surveying according to claim 1, characterized in that: A mounting base (701) is provided on one side of the fixed bracket (501), and a control panel (702) is provided on one side of the mounting base (701).

7. A mobile support for pipeline surveying according to claim 1, characterized in that: The pressure analyzer (505) comprises the following units: A11: Signal acquisition unit, including high-sensitivity strain gauges, multi-channel signal amplifiers, and anti-interference filters; A12: Data processing unit, including embedded microprocessor, dynamic storage chip and AD conversion module; A13: Magnetic field control unit, including an adjustable electromagnetic coil array, a current drive module, and a heat sink assembly.

8. A mobile support for pipeline surveying according to claim 7, characterized in that: When the pressure analyzer (505) is in operation, it includes the following steps: S11: A high-sensitivity strain gauge detects the deformation of the biomimetic spider web pressure sensing circuit (504) and generates a microvolt-level voltage signal; S12: A multi-channel signal amplifier amplifies weak signals, and an anti-interference filter removes 50Hz power frequency noise and environmental electromagnetic interference; S13: The AD conversion module converts analog signals into digital signals with 16-bit precision and a 1kHz sampling rate. The dynamic storage chip caches pressure data within 10 seconds to form a time-series sample. S14: Embedded microprocessor identifies the data source for each channel; S15: The microprocessor runs a finite element analysis algorithm to calculate the spatial distribution of pressure in the magnetorheological elastomer layer, and combines the offset data of the spherical counterweight (509) to establish a dynamic load model; S16: Call the magnetorheological constitutive model database to match the optimal damping coefficient for the current pressure-frequency combination; S17: Calculate the required magnetic field strength for each region based on the preset PID control algorithm, and generate an electromagnetic coil drive parameter table; S18: The current drive module outputs a PWM signal to drive an adjustable electromagnetic coil array; S19: The coils are activated sequentially according to their zone numbers, forming a gradient magnetic field within the magnetorheological elastic body. The heat dissipation fins maintain the coil temperature at ≤60℃ through forced air cooling. S110: The strain gauge collects the pressure data after adjustment and compares it with the expected model. If the error is >15%, the adaptive learning algorithm is triggered to update the constitutive model parameters, and the adjustment log is displayed through the console (702). S111: When continuous over-limit pressure is detected, activate the safety protocol, enhance the magnetic field of the corresponding area to the maximum value, and send an alarm to the control console (702); S112: If the signal is lost, automatically switch to the backup channel or the global uniform damping mode; S113: Stores pressure-magnetic field regulation records to an SD card and periodically uploads the data to the cloud for digital twin model training. It optimizes PID control parameters based on historical data to improve the efficiency of subsequent adjustments.

9. A mobile support for pipeline surveying according to claim 3, characterized in that: The grid spot projector (603) comprises the following units: A21: Optical projection unit, including laser diode array, diffractive optical elements and focusing lens group; A22: Image acquisition unit, including CMOS industrial camera, infrared cut-off filter and image stabilization gimbal bracket; A23: 3D reconstruction unit, including point cloud processing chip, terrain modeling software and data output interface.

10. A method for using a mobile support for pipeline network surveying, comprising the following steps: S21: Push the mobile support to the target surveying area using the moving wheels (202), manually rotate the adjusting bolt (203) to adjust the height of the rotating platform (201) to initially stabilize the support; S22: Start the grid spot projector (603) to project the grid spot onto the ground. The CMOS industrial camera collects the ground spot distortion data, and the point cloud processing chip calculates the ground flatness. S23: The console (702) displays the optimal fulcrum position; adjust the bracket position to align it with the optimal support area. S24: Start the driver (303) to drive the hydraulic table (301) to descend, so that the fixed needle plate (302) is inserted into the ground. Check whether the bracket is stable, and adjust the depth of the fixed needle plate (302) if necessary; S25: Place the pipeline surveying equipment on the support platform (502), start the hydraulic rod (402) to lower the lower pressure seat (403), and use the positioning head (404) to lock the position of the equipment; S26: The biomimetic spider web pressure sensing circuit (504) detects the initial pressure distribution of the equipment, the pressure analyzer (505) analyzes the data, adjusts the magnetic field strength of the magnetorheological elastomer damping layer (503), and optimizes the damping coefficient; S27: The spherical counterweight (509) rolls within the support base (507) as the equipment vibrates, impacting the sensing pad (508); S28: Pressure analyzer (505) monitors offset data in real time and dynamically adjusts damping parameters; S29: If ground subsidence or equipment shifts, the grid spot projector (603) rescans the ground, updates the optimal fulcrum, and manually or automatically adjusts the hydraulic platform (301) or adjusting bolt (203) to maintain horizontal stability; S210: Stop the operation of the surveying equipment, raise the hydraulic rod (402), release the lower pressure seat (403), and remove the equipment; S211: The driver (303) retracts the fixed needle plate (302) and raises the hydraulic table (301); S212: Rotate the adjusting bolt (203) to lower the rotating platform (201), so that the moving wheel (202) contacts the ground and pushes the support to be removed.

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