CN108955552B - Non-contact measurement system and method for non-uniform displacement of roadway/tunnel surface - Google Patents
Non-contact measurement system and method for non-uniform displacement of roadway/tunnel surface Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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Abstract
The invention discloses a non-contact measurement system and a non-contact measurement method for roadway/tunnel surface displacement, which overcome the defect of the traditional roadway surrounding rock deformation measurement. The system comprises an explosion-proof machine shell, a data measurement system, a central control system, a measurement positioning system, a data transmission system, a data analysis processing system and a display system, wherein the data measurement system is arranged on the right side of the explosion-proof machine shell and comprises a secondary vertical transmission mechanism, a secondary horizontal transmission mechanism, a laser range finder and an automatic steering engine, and the laser range finder is fixedly connected with the automatic steering engine. When the system works, after the automatic steering engine parameters are preset, the space position of the laser range finder is adjusted by utilizing the transmission structure, the central control system sends out an instruction to drive the laser range finder to perform 360-degree circumferential rotation through the steering engine of the transmission mechanism, and meanwhile, a sequence of short pulse laser beams are emitted to the measuring points so as to realize high-precision measurement of uneven deformation of the surface of the surrounding rock of the irregular roadway.
Description
Technical Field
The invention relates to a non-contact type tunnel/tunnel surface displacement measuring system and a non-contact type tunnel/tunnel surface displacement measuring method, in particular to a tunnel surrounding rock deformation measuring system which is suitable for measuring non-uniform deformation under the condition of irregular tunnel surrounding rocks with high precision.
Background
The roadway/tunnel surface deformation is the most basic engineering monitoring parameter content and mainly comprises roadway/tunnel top, bottom and side wall approaching amounts and the like, the roadway/tunnel surface displacement speed and roadway/tunnel section convergence rate can be calculated according to the monitoring result, a relation curve for drawing the displacement amount, the displacement speed and the roadway/tunnel excavation position and time is established, and then the roadway/tunnel surrounding rock deformation law, surrounding rock stability and roadway/tunnel supporting effect are analyzed. At present, a cross measurement method is generally adopted in the method for monitoring the surface deformation of the roadway/tunnel, namely, holes are drilled in the vertical direction and the horizontal direction of the two sides of the middle parts of the top and the bottom plates of the roadway/tunnel, measuring base points such as wood piles, short anchor rods and measuring nails are installed, and manual measurement and recording are carried out by staff.
Considering that the roadway/tunnel in engineering is affected by ground stress, lithology, rheology or blasting impact, the initial section shape and the unevenness are generally large in difference, and the surrounding rock surface is unevenly deformed. The traditional method is limited by the influence of the measuring point positions, and is mainly suitable for uniform deformation of the surface of the surrounding rock of the regular roadway; the manual recording is limited to a certain section of a roadway, and the integral measurement cannot be realized; the problems that the data is not recorded timely and the accuracy is not high by workers, and the data analysis is inaccurate are easy to occur. The above problems present difficulties in measuring the deformation of the roadway surface, and it is apparent that there is a need for further improvements and improvements in the art.
The optical measuring tool has the advantages of simple structure, high measuring precision and strong applicability in severe environments, and can realize real-time measurement of deformation of surrounding rock of a roadway by using pulse measuring devices such as a laser range finder and the like, accurately measure the deformation of the long-distance roadway in any direction at one time and determine the shape of the deformed surrounding rock.
Through search query, related research reports in the prior art are as follows:
the device and the method for measuring the deformation of the surface of the surrounding rock of the roadway (bulletin number: CN 103510985A) process the deformation data of the surface of the roadway by utilizing a computer software unit, draw roadway graphs, analyze the deformation of the surrounding rock of each measuring point of the roadway and predict the danger of the roadway, and are suitable for accurately measuring the deformation of the surrounding rock of the roadway. But the device is mainly suitable for measuring the uniform deformation of the surface of the regular roadway surrounding rock, and the difficulty of completing the deformation measurement work of the section of the whole roadway is high. The dynamic measuring device for the deformation of the surrounding rock of the roadway (bulletin number: CN 201680823U) realizes the automatic, real-time, multi-section and continuous long-term measurement of the deformation of the roadway by utilizing a plurality of laser ranging sensors arranged on the side wall and the top of the roadway at intervals, and is suitable for the real-time measurement, data storage, image display and data communication of the deformation of the surrounding rock of the roadway. However, the selected laser range finders are not additionally provided with a rotating device, so that the full section measurement of the roadway cannot be realized, and a large number of laser range finders are required to be used for completing one-time measurement. The device and the method for monitoring the surface deformation of the whole-lane whole-process whole-section (bulletin number: CN 106401651A) are characterized in that an anchor rope is used for arranging a measuring station, a threaded sleeve at the tail of the anchor rope is used for connecting a supporting frame and a rotary laser measuring device, and the digital imaging of the whole-lane whole-process whole-section is realized through the rotary laser measuring device. The device is loaded down with trivial details with the circuit arrangement, and the randomness of measurement sampling interval is great, and the anchor rope as the installation carrier receives external environment's disturbance easily moreover.
Therefore, the device breaks through the problems of the existing tunnel surrounding rock surface deformation laser measuring device, namely, on the basis of accurately acquiring deformation of the tunnel section in all directions, the functions of automatically adjusting the space distance of measurement sampling, monitoring the irregular tunnel surrounding rock surface non-uniform deformation in real time and the like are realized, meanwhile, the influence of the external environment on the measuring device is reduced, the measuring cost is reduced and the like, and the device has extremely important research and engineering significance for supporting and constructing rock mass engineering and the like.
Disclosure of Invention
The invention aims to overcome the defects of the traditional roadway surrounding rock deformation measurement, and provides a non-contact measurement system and a non-contact measurement method for roadway/tunnel surface displacement.
In order to achieve the above object, the main technical problems to be overcome are as follows:
(1) 360-degree circumferential automatic measurement of irregular roadway/tunnel surface non-uniform displacement;
(2) Space-time high-precision calibration and calibration of roadway/tunnel surface displacement;
(3) Matching and converting the displacement data to the 3D digital image.
In order to solve the technical problems, the following technical scheme is adopted:
the non-contact type measurement system for the surface displacement of the roadway/tunnel comprises an explosion-proof machine shell, a data measurement system, a central control system, a measurement positioning system, a data transmission system, a data analysis processing system and a display system, wherein the data measurement system is arranged on the right side of the explosion-proof machine shell and comprises a secondary vertical transmission mechanism, a secondary horizontal transmission mechanism, a laser range finder and an automatic steering engine, the laser range finder is fixedly connected with the automatic steering engine, the automatic steering engine can drive the laser range finder to perform 360-degree circumferential rotation, and the secondary vertical transmission mechanism and the secondary horizontal transmission mechanism drive the automatic steering engine to move;
the measuring and positioning system is used for controlling the movement of the secondary vertical transmission mechanism and the secondary horizontal transmission mechanism;
the data transmission system is used for receiving the data acquired by the data measurement system and transmitting the data to the data storage system;
the data analysis processing system comprises an electronic recorder for acquiring a three-dimensional point cloud array by analyzing space coordinate information, an electronic analyzer for determining deformation standards by extracting multi-plane features, an electronic registration instrument formed by matching image matching with system calibration space time and a 3D model machine synthesized by RGB image processing; the data analysis processing system is used for analyzing the data in the data storage system;
the central control system is used for controlling the data measuring system, the measuring and positioning system, the data transmission system and the data analysis and processing system.
As a preferred scheme of the invention, the data storage system comprises a control chip and SD card integrated system, the laser range finder is used for digitally processing the acquired roadway surface deformation data, and the data are calculated by combining related software and transmitted to a 3D model machine to be stored in the control chip and SD card integrated system after passing through the electronic recorder, the electronic analyzer and the electronic registration instrument.
As another preferable mode of the invention, a control chip is arranged in the central control system, and the data measurement system, the measurement positioning system, the data transmission system and the data analysis processing system are controlled by signals through the control chip.
Further, the measuring and positioning system comprises a primary transmission mechanism and an electronic compass, and is used for controlling the motion of the secondary vertical transmission mechanism and the secondary horizontal transmission mechanism.
Further, the data transmission system comprises a data transmission line, a USB data transmission interface and an RJ45 network interface, wherein the data transmission line is arranged in the explosion-proof casing, and the USB data transmission interface and the RJ45 network interface are arranged on the left side of the explosion-proof casing.
Further, an LED explosion-proof lamp and a power socket for illumination are arranged on the front side of the explosion-proof shell, a power supply is further arranged in the explosion-proof shell, and the power supply adopts an explosion-proof lithium ion battery and a safety protection type lithium battery charging plate.
Further, the electronic recorder, the electronic analyzer and the electronic registering instrument are all arranged in the explosion-proof casing.
Further, the display system comprises a liquid crystal digital display screen, a laser range finder horizontal movement control button, a laser range finder vertical movement control button, an explosion-proof housing vertical movement control button, a start button, an end button, a recording button, a storage button, a deriving button and a charging indicator lamp.
Further, the lower part of the explosion-proof machine shell is provided with a bearing steel frame and a telescopic vertical frame, and the bottom of the explosion-proof machine shell is provided with rollers.
Further, the laser range finder comprises a laser emitter and a laser receiver.
Another task of the present invention is to provide a non-contact measurement method of the surface displacement of a roadway/tunnel, comprising the following steps in order:
firstly, selecting a roadway area to be measured in a mine, marking a measurement base point according to the section of the roadway, retracting a movable wheel at the lower part of the explosion-proof casing, adjusting the measuring device to move vertically to the base point, opening a secondary horizontal transmission mechanism and a secondary vertical transmission mechanism, and placing an automatic steering engine in the horizontal direction according to an electronic compass, namely adjusting the horizontal direction of a roadway surrounding rock surface deformation laser measuring device;
secondly, before formal measurement, starting a laser emitter to adjust and emit light rays which are perpendicular to the central line of the roadway, so that a laser range finder fixedly connected with an automatic steering engine in a roadway surrounding rock surface deformation laser measuring device can be perpendicular to the central line of the roadway;
thirdly, after the rotation angle rate is set, starting an automatic steering engine, starting a laser ranging function of a control chip through a starting button, inputting a surrounding rock measuring point number according to 1, 2 and 3 … … after the automatic steering engine rotates for one circle, and starting to measure;
calculating space coordinates of surrounding rock after analyzing the measuring point data by using an electronic recorder, counting and analyzing the measuring point coordinates by using the electronic analyzer and the electronic registration instrument, acquiring deformation of the surrounding rock, starting a recording button after observing a surrounding rock image in a display screen without errors, and automatically storing roadway surrounding rock measurement data on an SD card;
fifthly, when the measurement of the surrounding rock of the section of the roadway is finished, a display screen of the device displays that the measurement is finished, namely, the secondary transmission mechanism can be operated to extend a transmission arm, namely, a laser range finder for measuring the deformation data of the section of the adjacent surrounding rock is moved;
and sixthly, after all base points of the section of roadway are measured, starting a data export button to transmit data to a 3D model machine for data analysis through related software, analyzing deformation of each measuring point according to exported and monitored surrounding rock deformation original data, and drawing a 3D section diagram of each measuring point of the section of the roadway.
Compared with the prior art, the invention has the following beneficial technical effects:
(1) According to the invention, a plurality of technologies such as a laser measurement technology, computer image processing, 3D stereoscopic vision, a roadway surrounding rock monitoring method and the like are integrated, and the roadway surrounding rock surface deformation 3D model is obtained by measuring roadway surrounding rock surface deformation data underground and introducing related software for processing, so that the problems of complex operation and lower accuracy in the roadway surrounding rock deformation monitoring process are solved;
(2) The invention adopts the control chip to control and send out instructions, when the pulse laser range finder works, a sequence of short pulse laser beams are emitted to the measuring point, the photoelectric element receives the laser beams reflected by the measured surrounding rock, the timer measures the time from the emission to the receiving of the laser beams, and the distance from the observer to the target is calculated so as to realize high-precision measurement;
(3) Meanwhile, the steering engine of the transmission mechanism drives the laser measuring instrument to rotate in 360 degrees of the circumferential direction, so that the deformation condition of the whole section of the roadway can be measured, the monitoring range is wide, the deformation of surrounding rock of the roadway is monitored through the laser range finder, the nondestructive and non-contact monitoring of the deformation of the surrounding rock is realized, and the problem that the subjectivity of the conventional monitoring is high is solved;
(4) The space position of the laser range finder is adjusted by utilizing the transmission structure, the automatic steering engine realizes high-efficiency unmanned monitoring after the rotation parameters are preset, the problems of long time consumption, difficult construction, high cost and the like of installing sensors on a plurality of positions on surrounding rock are avoided, the monitoring process is simple and convenient to implement, the engineering operation of coal mine workers is facilitated, the measured data is processed by a related algorithm, the full section monitoring data of a roadway can be displayed and a three-dimensional structure model is drawn, the degree of automation is high, the environmental adaptability of the roadway is good, and the normal operation of the engineering is not influenced in the whole monitoring process;
(5) The explosion-proof casing can be used for measuring different roadway surrounding rock sections, and the explosion-proof casing is supported by the freely telescopic idler wheels and the tripod, so that the explosion-proof casing is convenient to move, can adapt to the rugged ground environment in an underground roadway, is high in stability, has explosion-proof measures, and is high in safety.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a front view of a roadway surrounding rock surface deformation three-dimensional model construction device;
FIG. 2 is a left side view of a roadway surrounding rock surface deformation three-dimensional model construction device structure;
FIG. 3 is a right side view of a tunnel surrounding rock surface deformation three-dimensional model construction device;
FIG. 4 is a structural top view of the roadway surrounding rock surface deformation three-dimensional model building device;
fig. 5 is a measurement flow chart of the present invention.
In the figure: the system comprises a 1-explosion-proof shell, a 2-bearing steel frame, a 3-telescopic vertical frame, a 4-3D model machine, a 5-power supply, a 6-control chip and SD card integrated system, a 7-electronic recording and analyzing instrument, an 8-telescopic roller, a 9-electronic registering instrument, a 10-secondary vertical transmission mechanism, an 11-automatic steering engine, a 12-laser range finder, a 13-secondary horizontal transmission mechanism, a 14-illumination LED explosion-proof lamp, a 15-data transmission line, a 16-telescopic pull rod, a 17-USB data transmission interface, an 18-RJ45 network interface, a 19-charging display lamp, a 20-1 explosion-proof shell vertical control button, a 20-2 secondary transmission mechanism horizontal control button, a 20-3 secondary transmission mechanism vertical control button, a 21-1 start button, a 21-2 recording button, a 21-3 storage button, a 21-4 export button, a 21-5 end button, a 22-liquid crystal display screen and a 23-three-phase 220V power socket.
Detailed Description
The invention discloses a non-contact measurement system and a non-contact measurement method for roadway/tunnel surface displacement, which are used for making the advantages and the technical scheme of the invention clearer and more definite, and are described in detail below with reference to specific embodiments.
The non-contact measurement system for the roadway/tunnel surface displacement mainly comprises an explosion-proof machine shell 1, a bearing steel frame 2, a telescopic vertical frame 3, a 3D model machine 4, a power supply 5, a control chip and SD card integrated system 6, an electronic recording and analyzing instrument 7, a telescopic roller 8, an electronic registering instrument 9, a secondary vertical transmission mechanism 10, an automatic steering engine 11, a laser range finder 12, a secondary horizontal transmission mechanism 13, an illumination LED explosion-proof lamp 14, a data transmission line 15, a telescopic pull rod 16, a USB data transmission interface 17, an RJ45 network interface 18, a charging display lamp 19, an explosion-proof machine shell vertical control button 20-1, a secondary transmission mechanism horizontal control button 20-2, a secondary transmission mechanism vertical control button 20-3, a starting button 21-1, a recording button 21-2, a storage button 21-3, a export button 21-4, an ending button 21-5, a liquid crystal display screen 22 and a three-phase 220V power socket 23, wherein the non-contact measurement system is shown in the figures 1 to 4.
The explosion-proof machine shell 1 is internally provided with a 3D model machine 4, a power supply 5, a control chip and SD card integrated system 6, an electronic recording and analyzing instrument 7, an electronic registering instrument 9 and a data transmission line 15 in sequence. As shown in fig. 2, a telescopic pull rod 16, a USB data transmission interface 17 and an RJ45 network interface 18 are arranged on the left side of the explosion-proof casing 1, a laser range finder 12 and an automatic steering engine 11 are arranged on the right side, and the secondary transmission mechanism consists of a secondary vertical transmission mechanism 10 and a secondary horizontal transmission mechanism 13 and is fixedly connected with the automatic steering engine 11.
The laser range finder 12 consists of a laser emitter and a laser receiver, the automatic steering engine 11 is fixedly connected with the laser range finder 12, the laser range finder 12 is driven to circumferentially rotate by 360 degrees by controlling the automatic steering engine 11, meanwhile, the laser range finder 12 emits laser to surrounding rocks of a roadway by utilizing the steering engine intermittently and receives reflected laser, then, the emission-receiving time difference is automatically calculated by a designed computer program, the current value of the surrounding rock distance of the roadway is calculated by a laser propagation path calculation formula, and the data are ordered.
The top is provided with a charging display lamp 19, an explosion-proof shell vertical control button 20-1, a secondary transmission mechanism horizontal control button 20-2, a secondary transmission mechanism vertical control button 20-3, a starting button 21-1, a recording button 21-2, a storage button 21-3, a lead-out button 21-4, an end button 21-5 and a liquid crystal display screen 22.
The front side of the explosion-proof machine shell 1 is provided with an LED explosion-proof lamp 14 for illumination, the front side of the explosion-proof machine shell 1 is provided with a chargeable three-phase 220V power socket 23, and the lower part of the explosion-proof machine shell 1 is provided with a bearing steel frame 2, a telescopic vertical frame 3 and a roller 8. The power supply 5 adopts an explosion-proof lithium ion battery and a safety protection type lithium battery charging plate, and the secondary vertical transmission mechanism 10, the automatic steering engine 11, the laser range finder 12 and the secondary horizontal transmission mechanism 13 are connected through an internal circuit.
The control chip and SD card integrated system 6 is used for positioning the measuring direction, and the control chip and SD card integrated system 6 respectively controls the 3D model machine 4, the electronic recording and analyzing instrument 7, the electronic registering instrument 9, the secondary vertical transmission mechanism 10, the automatic steering engine 11, the laser distance meter 12, the secondary horizontal transmission mechanism 13, the explosion-proof shell vertical control button 20-1, the secondary transmission mechanism horizontal control button 20-2, the secondary transmission mechanism vertical control button 20-3, the starting button 21-1, the recording button 21-2, the storage button 21-3, the export button 21-4, the ending button 21-5 and the liquid crystal display 22.
The laser range finder 12 processes the acquired roadway surface deformation data in a digital mode, calculates and transmits the data to the 3D model machine 4 through relevant software through the electronic recording and analyzing instrument 7 and the electronic registering instrument 9, and finally stores the data in the control chip and SD card integrated system 6.
The related software such as a calculation software unit consists of a measurement data output unit, a deformation analysis unit and a three-dimensional model construction unit, wherein the measurement data output unit can derive original data of the deformation of the surface of the roadway, the deformation analysis unit can calculate the deformation of surrounding rock of the roadway, and the three-dimensional model construction unit can construct a three-dimensional model by analyzing the data deformation of each measuring point of the roadway.
The non-contact measurement method of the roadway/tunnel surface displacement adopts the system, and the specific operation flow is as follows:
(1) Selecting a roadway area to be measured in a mine, marking a measurement base point according to the section of the roadway, retracting a movable wheel 8 at the lower part of the explosion-proof casing 1, adjusting a measuring device 20-1 to move vertically to the base point, opening a secondary horizontal transmission mechanism 13 and a secondary vertical transmission mechanism 10, and placing an automatic steering engine 11 in a horizontal state according to an electronic compass, namely adjusting the horizontal state of a laser measuring device for the deformation of the surface of surrounding rock of the roadway;
(2) Before formal measurement, the laser transmitter 12 is started to adjust the emitted light to be perpendicular to the central line of the roadway, so that the laser range finder 12 fixedly connected with the automatic steering engine 11 in the roadway surrounding rock surface deformation laser measuring device can be perpendicular to the central line of the roadway;
(3) After the rotation angle rate is set, the automatic steering engine 11 is started, the laser ranging function of the control chip 6 is started through the starting button 21-1, and after the automatic steering engine 11 rotates for one circle, the surrounding rock measuring point numbers are input according to 1, 2 and 3 … … and measurement is started;
(4) Calculating the space coordinates of surrounding rock after analyzing the measuring point data by the electronic recorder 7, counting and analyzing the measuring point coordinates by the electronic analyzer 7 and the electronic registration instrument 9, acquiring the deformation of the surrounding rock, starting a 21-2 button after observing the surrounding rock image in the display screen without errors, and automatically storing the roadway surrounding rock measurement data on the SD card 6;
(5) When the measurement of the surrounding rock of the section of the roadway is finished, the device display screen 22 displays that the measurement is finished, namely, the secondary transmission mechanism is operated to extend the transmission arm, namely, the laser range finder 12 for measuring the deformation data of the section of the adjacent surrounding rock is moved;
(6) After the measurement of all base points of the section of roadway is finished, a data-outputting 21-4 button is started to transmit data to a 3D model machine 4 for data analysis through related software, deformation of each measuring point is analyzed according to the original data of the surrounding rock deformation which is output and monitored, and a 3D section diagram of each measuring point of the section of the roadway is drawn.
FIG. 5 shows a measurement flow chart depicting a measurement process as indicated:
(1) The roadway surrounding rock surface deformation three-dimensional model construction device comprises a power supply, an LED explosion-proof lamp, an automatic steering engine, a transmission mechanism, a laser range finder, a control chip, an SD data memory card, a data transmission line and a software processing unit;
(2) The power supply supplies power for an LED explosion-proof lamp, an automatic steering engine, a transmission mechanism, a laser range finder, a control chip, an SD data memory card, a data transmission line, a software processing unit and the like of the device;
(3) The control chip controls the LED explosion-proof lamp, the laser range finder, the automatic steering engine, the transmission mechanism, the SD data memory card and the software processing unit; the central control processor and the initial data storage are integrated on the control chip;
(4) The laser measuring module comprises a secondary vertical transmission mechanism 10, an automatic steering engine 11, a laser range finder 12 and a secondary horizontal transmission mechanism 13, wherein the laser range finder 12 consists of a laser emitter and a laser receiver, and the automatic steering engine 11 drives the laser range finder to perform 360-degree circumferential rotation;
(5) The method comprises the steps of collecting roadway data through a laser measurement module, sending the roadway data to a control chip for initial data storage for preliminary processing, adding specific identifiers to an electronic recording and analyzing instrument entering a software processing unit to indicate specific measuring points and measuring time, introducing the data into an electronic registration instrument through a data transmission line, carrying out position identification and data processing according to the identifiers of each group of data, judging the actual deformation of surrounding rocks of the roadway, and automatically obtaining the shape of the roadway and the deformation curve of any measuring point;
(6) The processed surrounding rock deformation data are imported into a 3D model machine to build a three-dimensional structure model of the surrounding rock of the roadway, and the three-dimensional model building device for the surface deformation of the surrounding rock of the roadway can continuously measure data of any underground measuring point, analyze and compare the deformation of the surface of the roadway and automatically build a three-dimensional model.
The parts not described in the invention can be realized by adopting or referring to the prior art.
Although terms such as the control chip and SD card integrated system 6, the electronic recording and analyzing instrument 7, the retractable wheel 8, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
It should be further understood that the specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (1)
1. The utility model provides a non-contact measurement system of lane tunnel surface displacement, its includes explosion-proof casing, data measurement system, central control system, measures positioning system, data transmission system, data analysis processing system and display system, its characterized in that:
the data measurement system is arranged on the right side of the explosion-proof machine shell and comprises a secondary vertical transmission mechanism, a secondary horizontal transmission mechanism, a laser range finder and an automatic steering engine, wherein the laser range finder is fixedly connected with the automatic steering engine, the automatic steering engine can drive the laser range finder to perform 360-degree circumferential rotation, and the secondary vertical transmission mechanism and the secondary horizontal transmission mechanism drive the automatic steering engine to move;
the measuring and positioning system is used for controlling the movement of the secondary vertical transmission mechanism and the secondary horizontal transmission mechanism;
the data transmission system is used for receiving the data acquired by the data measurement system and transmitting the data to the data storage system;
the data analysis processing system comprises an electronic recorder for acquiring a three-dimensional point cloud array by analyzing space coordinate information, an electronic analyzer for determining deformation standards by extracting multi-plane features, an electronic registration instrument formed by matching image matching with system calibration space time and a 3D model machine synthesized by RGB image processing; the data analysis processing system is used for analyzing the data in the data storage system;
the central control system is used for controlling signals of the data measurement system, the measurement positioning system, the data transmission system and the data analysis processing system;
the data storage system comprises a control chip and SD card integrated system, the laser range finder processes the acquired roadway surface deformation data in a digital mode, and the data are calculated by combining related software and transmitted to a 3D model machine after passing through an electronic recorder, an electronic analyzer and an electronic registration instrument, and are stored in the control chip and SD card integrated system;
a control chip is arranged in the central control system, and the control chip is used for controlling signals of the data measurement system, the measurement positioning system, the data transmission system and the data analysis processing system;
the measuring and positioning system comprises a primary transmission mechanism and an electronic compass, and is used for controlling the motion of the secondary vertical transmission mechanism and the secondary horizontal transmission mechanism;
the data transmission system comprises a data transmission line, a USB data transmission interface and an RJ45 network interface, wherein the data transmission line is arranged in the explosion-proof casing, and the USB data transmission interface and the RJ45 network interface are arranged on the left side of the explosion-proof casing; an LED explosion-proof lamp and a power socket for illumination are arranged on the front side of the explosion-proof shell, a power supply is also arranged in the explosion-proof shell, and the power supply adopts an explosion-proof lithium ion battery and a safety protection type lithium battery charging plate;
the electronic recorder, the electronic analyzer and the electronic registering instrument are all arranged in the explosion-proof shell;
the display system comprises a liquid crystal digital display screen, a laser range finder horizontal movement control button, a laser range finder vertical movement control button, an explosion-proof shell vertical movement control button, a start button, an end button, a recording button, a storage button, a deriving button and a charging indicator lamp;
the lower part of the explosion-proof machine shell is provided with a bearing steel frame and a telescopic vertical frame, and the bottom of the explosion-proof machine shell is provided with rollers;
the laser range finder comprises a laser emitter and a laser receiver.
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| CN109518739B (en) * | 2019-01-22 | 2024-02-02 | 东华理工大学 | Sediment thickness detector |
| CN110863859A (en) * | 2019-11-27 | 2020-03-06 | 山东科技大学 | High-precision monitoring and early warning system and method for deformation of top plate |
| CN111829441A (en) * | 2020-09-03 | 2020-10-27 | 东北大学 | Roadway surface displacement deformation monitoring method based on laser ranging principle |
| CN113686298A (en) * | 2021-10-11 | 2021-11-23 | 河南新华五岳抽水蓄能发电有限公司 | Device for measuring deformation of surrounding rock of cavern |
| CN114910004B (en) * | 2022-05-26 | 2023-01-31 | 中国矿业大学 | Telescopic multipoint displacement meter based on laser ranging and application method thereof |
| CN115371619B (en) * | 2022-10-24 | 2023-01-31 | 济宁矿业集团有限公司 | Roadway shape measuring device |
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