Laser range finder based on cross point distribution method and surrounding rock displacement monitoring management system

Abstract

The invention discloses a laser range finder based on a cross point distribution method and a surrounding rock displacement monitoring management system, and relates to the technical field of coal mine tunnel surrounding rock surface displacement monitoring. The laser range finder comprises four laser range finding assemblies which are respectively used for measuring the distances from a top plate, a bottom plate, a left side and a right side of a to-be-observed section to a central point; and the final distance is calculated in combination with the offset. Laser ranging is carried out in four directions at the same time, work of finding a center point by pulling a rope, respectively measuring distances of four sides, winding the rope, recording position information, recording measurement data and the like can be completed at a time, and tedious work of pulling the rope, hanging the rope and the like is perfectly avoided; and meanwhile, the personal error of observation of different operators and the uncertainty of data recording are greatly reduced, and the accuracy and reliability of distance measurement and data recording are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of surface displacement monitoring of surrounding rock in coal mine tunnels, and in particular to a laser rangefinder based on a cross-point distribution method and a surrounding rock displacement monitoring and management system. Background Art

[0002] At present, the traditional cross-point method is generally used to observe the surface displacement of the surrounding rock of coal mine tunnels. The traditional cross-point method usually involves pulling two rubber ropes from the roof to the bottom plate, from the left side to the right side, and then measuring four distances in four directions from the intersection of the two ropes. A steel tape measure or a single-point laser rangefinder is generally used. This method not only requires pulling two ropes perpendicular to each other, but also requires four distance measurements, and then recording the four distance values. Finally, the two ropes must be put away and hung back in their original places. This method is not only cumbersome to operate, but also requires high operational rigor and standardization of the technical personnel. It is not easy to control the quality of the observation data. The underground environment is complex. In places with large equipment such as belt conveyors, pulling and hanging ropes is very difficult to operate. Ropes that hang underground for a long time are prone to rot. Summary of the Invention

[0003] The purpose of this application is to provide a laser rangefinder and surrounding rock displacement monitoring and management system based on the cross-point method, which can avoid tedious operations such as pulling and hanging ropes and improve the accuracy of distance measurement.

[0004] To achieve the above objectives, this application provides the following solutions:

[0005] In a first aspect, the present application provides a laser rangefinder based on a cross-point method, comprising:

[0006] case;

[0007] a first laser distance measuring assembly, located on an upper end surface of the housing, for measuring a first distance between a first reference point and a center point, wherein the first reference point is located on a roof of a section to be observed in a coal mine tunnel;

[0008] a second laser distance measuring assembly, located on the lower end surface of the interior of the housing, for measuring a second distance between a second reference point and the center point, wherein the second reference point is located on the bottom plate of the section to be observed;

[0009] a third laser distance measuring assembly, located on the left end surface of the interior of the housing, for measuring a third distance between a third reference point and the center point, wherein the third reference point is located on the left side of the section to be observed;

[0010] a fourth laser distance measuring assembly, located on the right end surface of the interior of the housing, for measuring a fourth distance between a fourth reference point and the center point, wherein the fourth reference point is located on the right side of the section to be observed;

[0011] A control module is located inside the shell and is connected to the first laser ranging assembly, the second laser ranging assembly, the third laser ranging assembly and the fourth laser ranging assembly, and is used to calculate the actual distance between the center point and the top plate, the actual distance between the center point and the bottom plate, the actual distance between the center point and the left side and the actual distance between the center point and the right side according to the first distance, the second distance, the third distance, the fourth distance and the corresponding offset.

[0012] In a second aspect, the present application provides a surrounding rock displacement monitoring and management system, comprising:

[0013] The laser rangefinder based on the cross-point method as described in the first aspect is used to regularly obtain measurement data of each section to be observed, wherein the measurement data includes the actual distance between the center point and the top plate, the actual distance between the center point and the bottom plate, the actual distance between the center point and the left side, and the actual distance between the center point and the right side;

[0014] A mobile management platform, connected to the laser rangefinder, for storing and displaying measurement data of each section to be observed;

[0015] The server management platform is connected to the mobile management platform and is used to calculate the section movement amount based on the measurement data of each section to be observed.

[0016] According to the specific embodiments provided in this application, this application has the following technical effects:

[0017] This application provides a laser rangefinder and surrounding rock displacement monitoring and management system based on the cross-point method. The laser rangefinder includes four laser ranging components, each used to measure the distance from the top plate, bottom plate, left side, and right side of the observed section to the center point, and calculate the final distance based on the offset. By performing laser ranging in four directions simultaneously, it can complete the tasks of pulling the rope to find the center point, measuring the distance on all four sides, retracting the rope, recording position information, and measuring data in one go, relatively perfectly avoiding the tedious tasks of pulling and hanging the rope. At the same time, it greatly reduces the human error caused by different operators' observations and the uncertainty of data recording, ensuring the accuracy and reliability of distance measurement and data recording. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1A schematic structural diagram of a laser rangefinder based on the cross-point method provided in Example 1 of the present application;

[0020] Figure 2 This is a schematic structural diagram of the tripod in Example 1 of the present application;

[0021] Figure 3 A schematic structural diagram of a surrounding rock displacement monitoring and management system provided in Example 2 of the present application;

[0022] FIG4( a ) is a schematic diagram of a navigation bar for querying the latest lane map in Example 2 of the present application;

[0023] Figure 4(b) is the latest lane map in Example 2 of this application;

[0024] FIG5( a ) is a schematic diagram of a navigation bar for querying a lane map change diagram in Example 2 of the present application;

[0025] FIG5( b ) is a diagram showing changes in the lane map in Example 2 of the present application;

[0026] FIG6( a ) is a schematic diagram of a navigation bar for querying a monitoring curve schematic diagram in Example 2 of the present application;

[0027] Figure 6(b) is a schematic diagram of the monitoring curve in Example 2 of the present application.

[0028] Reference numerals:

[0029] 1. Display screen; 2-1. First laser ranging component; 2-2. Second laser ranging component; 2-3. Third laser ranging component; 2-4. Fourth laser ranging component; 3. Fine-tuning knob; 4-1. Measurement button; 4-2. Switch button; 4-3. Function button. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] Example 1

[0033] like Figure 1 As shown, this embodiment provides a laser rangefinder based on a cross-point arrangement method, including:

[0034] Housing, display 1, 4 laser ranging components, fine-tuning knob, 3 function buttons 4-3, charging port, rechargeable battery, location card recognition module, Bluetooth communication module and tilt sensor.

[0035] The four laser ranging components are respectively a first laser ranging component 2-1, a second laser ranging component 2-2, a third laser ranging component 2-3 and a fourth laser ranging component 2-4.

[0036] The first laser ranging component 2-1 is located on the upper end surface inside the shell and is used to measure the first distance between the first reference point and the center point, wherein the first reference point is located on the top plate of the section to be observed in the coal mine tunnel.

[0037] The second laser ranging component 2-2 is located on the lower end surface inside the shell and is used to measure the second distance between the second reference point and the center point, wherein the second reference point is located on the bottom plate of the section to be observed.

[0038] The third laser ranging component 2-3 is located on the left end surface inside the shell and is used to measure the third distance between the third reference point and the center point, wherein the third reference point is located on the left side of the section to be observed.

[0039] The fourth laser ranging component 2-4 is located on the right end surface inside the shell and is used to measure the fourth distance between the fourth reference point and the center point, wherein the fourth reference point is located on the right side of the section to be observed.

[0040] The control module is located inside the shell and is connected to the first laser ranging component 2-1, the second laser ranging component 2-2, the third laser ranging component 2-3 and the fourth laser ranging component 2-4, and is used to calculate the actual distance between the center point and the top plate, the actual distance between the center point and the bottom plate, the actual distance between the center point and the left side and the actual distance between the center point and the right side according to the first distance, the second distance, the third distance, the fourth distance and the corresponding offset.

[0041] The distance in the four directions plus the internal offset of the device in each direction is the final actual distance. Specifically,

[0042] The laser rangefinder measures the four distance values ​​(i.e., the first distance, the second distance, the third distance, and the fourth distance) as OA', OB', OC', and OD', respectively. Their relationship with the final actual distances U, D, L, and R displayed by the laser rangefinder is:

[0043] The distance between the center point and the top plate is OA = U = OA' + a;

[0044] The distance between the center point and the base plate is OB = D = OB' + b;

[0045] The distance from the center point to the left side is OC = L = OC' + c;

[0046] The distance from the center point to the right side OD=R=OD'+d;

[0047] Among them, a, b, c, and d are internal parameters of the device, that is, offsets.

[0048] A fine-tuning knob 3, located on the housing, is connected to the first laser ranging assembly 2-1 and the second laser ranging assembly 2-2 and is used to adjust the laser angle between the first and second laser ranging assemblies 2-1 and 2-2. The fine-tuning knob allows for fine-tuning of the horizontal laser angle to accommodate changes in the position of the laser reflector due to roadway deformation.

[0049] A location card identification module, located within the housing and connected to the control module, is used to identify the location identification card and obtain the cross-sectional information stored therein. The location identification card is used to store the cross-sectional information, including the working face and laneway information of the cross-sectional area. The cross-sectional information is written by a mobile phone app based on the actual cross-sectional location when arranging observation points, allowing the device to identify the cross-sectional location.

[0050] The tilt sensor is located inside the housing and is used to collect the tilt angle of the laser rangefinder.

[0051] This embodiment uses a location card recognition antenna to recognize the location identification card.

[0052] The three function buttons 4-3 include a measurement button 4-1, a switch button 4-2 and a function button 4-3, which are located on the housing and are used for powering on and off, measuring, viewing historical records, etc.

[0053] The display screen 1 is located outside the shell and is connected to the control module, and is used to display the measurement data and the cross-sectional information, wherein the measurement data includes the actual distance between the center point and the top plate, the actual distance between the center point and the bottom plate, the actual distance between the center point and the left side, and the actual distance between the center point and the right side.

[0054] Display 1 is also used to display an electronic level bubble and historical records. The electronic level bubble indicates the tilt status of the laser rangefinder. The electronic level bubble consists of a small circle and a large circle. Together, the small and large circles indicate the horizontal and vertical status of the laser rangefinder in the forward, backward, left, and right directions. When the laser rangefinder is level in both directions, the large and small circles overlap and appear green.

[0055] A rechargeable battery is located inside the shell and is connected to the first laser ranging component 2-1, the second laser ranging component 2-2, the third laser ranging component 2-3, the fourth laser ranging component 2-4 and the control module to provide power.

[0056] The charging port is located on the housing and is used to connect an external power supply device to charge the rechargeable battery.

[0057] As an optional implementation, the first laser ranging component 2-1 specifically includes:

[0058] The first laser generator is used to emit a laser beam to a first reflecting surface on a first reference point.

[0059] The first laser ranging sensor is used to receive the laser beam reflected by the first reflecting surface and calculate the first distance.

[0060] The second laser ranging component 2-2 specifically includes:

[0061] The second laser generator is used to emit a laser beam to a second reflecting surface at a second reference point.

[0062] The second laser ranging sensor is used to receive the laser beam reflected by the second reflecting surface and calculate the second distance.

[0063] The third laser ranging component 2-3 specifically includes:

[0064] The third laser generator is used to emit a laser beam to a third reflecting surface on a third reference point.

[0065] The third laser ranging sensor is used to receive the laser beam reflected by the third reflecting surface and calculate the third distance.

[0066] The fourth laser ranging component 2-4 specifically includes:

[0067] The fourth laser generator is used to emit a laser beam to a fourth reflecting surface on a fourth reference point.

[0068] The fourth laser ranging sensor is used to receive the laser beam reflected by the fourth reflecting surface and calculate the fourth distance.

[0069] When using the laser rangefinder of this embodiment, it is necessary to:

[0070] ① Such as Figure 2Assemble the tripod as shown: The tripod is used to stabilize the laser rangefinder, making the ranging equipment more stable and thus achieving higher ranging stability. When in use, open the tripod legs and freely adjust the extension length of the three legs according to the inclination or potholes of the roadway. Observe the horizontal bubble above the tripod to ensure that the tripod is level. According to the height of the reflectors at the reference points on the left and right sides, rotate the tripod handle to adjust the height of the laser rangefinder until the lasers on both sides (i.e., the lasers emitted by the third and fourth laser generators) respectively hit the center of the reflectors on the two sides, the top laser (i.e., the laser emitted by the first laser generator) hits the center of the top reflector, and the bottom laser (i.e., the laser emitted by the second laser generator) is not blocked by the tripod and hits the flat bottom plate.

[0071] ② Laser ranging: Stick the NFC sensing area (i.e., location card identification module) on the back of the laser rangefinder to the location identification card on the management board. After reading the cross-section information, clamp the laser rangefinder on the top fixture of the tripod to ensure that the laser port is not blocked. Click the power button and the measurement button to complete the laser ranging.

[0072] The laser rangefinder of this embodiment performs laser ranging in four directions simultaneously, and can complete the tasks of pulling the rope to find the center point, measuring the distance on four sides respectively, retracting the rope, recording position information and measurement data at one time. It perfectly avoids the tedious work of pulling and hanging the rope, and avoids the situation where it is inconvenient to cross the tunnel due to obstruction of large equipment (methods such as using telescopic rods and multiple measurements of a single laser are mostly bulky, difficult to carry and operate underground, and relatively cumbersome during measurement, with extremely low efficiency); it greatly reduces the human error of observation by different operators and the uncertainty of data recording, ensuring the accuracy and reliability of distance measurement and data recording.

[0073] Example 2

[0074] The traditional cross-point measurement method is not easy to carry, the measurement operation is complicated, the data reliability is poor, the data statistics are delayed, and there is no system monitoring and management system to provide intelligent monitoring and management. It is unable to provide timely, effective and reliable data support for the surface displacement observation and management of coal mine tunnels. Figure 3 As shown, this embodiment provides a surrounding rock displacement monitoring and management system, including:

[0075] The laser rangefinder based on the cross-point method as described in Example 1 is used to regularly obtain measurement data of each section to be observed, wherein the measurement data includes the actual distance between the center point and the top plate, the actual distance between the center point and the bottom plate, the actual distance between the center point and the left side, and the actual distance between the center point and the right side;

[0076] The mobile management platform (i.e., APP) is connected to the laser rangefinder and is used to store and display the measurement data of each section to be observed.

[0077] The server management platform (i.e., the ground monitoring center server) is connected to the mobile management platform and is used to calculate the section movement amount based on the measurement data of each section to be observed, determine whether to issue an early warning based on the section movement amount, and draw a view based on the measurement data and / or the section movement amount, wherein the view includes a tunnel change diagram (as shown in Figures 5(a) and 5(b)) and a monitoring curve (as shown in Figures 6(a) and 6(b)), and the monitoring curve includes a distance monitoring curve and a movement amount monitoring curve.

[0078] The server management platform can also display lane maps, as shown in Figure 4(a) and Figure 4(b).

[0079] In order to make those skilled in the art more clear about the construction and use process of the surrounding rock displacement monitoring and management system of this embodiment, the following is a detailed explanation.

[0080] The surrounding rock displacement monitoring and management system of this embodiment mainly includes a ground monitoring center server (building a server management platform), a mobile management platform, a laser rangefinder, a location identification card, a reflector and a tripod.

[0081] 1. System environment construction: Before use, deploy the server management platform and mobile management platform.

[0082] 2. Observation Environment Setup: Before the formal observation, determine the observation point location for the section to be observed. From this location, determine the distance measurement positions for the left and right sides and roof. According to the relevant provisions of the "Method for Observing Pressure Manifestations in Coal Mine Tunnel," use a laser rangefinder to assist in locating the installation position of the reflector. Drill holes to install wooden wedges and then install the reflector. Finally, use a smartphone to write the working face, tunnel, and distance information for the section location onto a location identification card. This location identification card is then affixed to the section observation management sign for subsequent observations.

[0083] 3. Daily observation:

[0084] ① Assemble the tripod: Unfold the tripod legs. Each leg can be adjusted individually to accommodate slopes, potholes, and other terrain within the roadway, ensuring the distance measurement device is level and stable. After determining the approximate height, fine-tune the device using the tripod handle to align the left and right lasers of the laser rangefinder with the left and right reflectors. Use the horizontal pan / tilt to fine-tune the laser's direction, ultimately ensuring that all four lasers are aligned with the four reflectors.

[0085] ② Laser ranging: Stick the NFC sensing area (i.e., location card identification module) on the back of the laser rangefinder to the location identification card on the management board. After reading the cross-section information, clamp the laser rangefinder on the top fixture of the tripod to ensure that the laser port is not blocked. Click the power button and the measurement button to complete the laser ranging.

[0086] 4. Laser rangefinder distance measurement principle:

[0087] The laser rangefinder measures the four distance values ​​OA', OB', OC', and OD', respectively. The relationship between them and the final actual distances U, D, L, and R is:

[0088] The distance between the center point and the top plate is OA = U = OA' + a;

[0089] The distance between the center point and the base plate is OB = D = OB' + b;

[0090] The distance from the center point to the left side is OC = L = OC' + c;

[0091] The distance from the center point to the right side OD=R=OD'+d;

[0092] Among them, a, b, c, and d are internal parameters of the device.

[0093] 5. Analysis and early warning:

[0094] Regular observations are conducted at each section of a roadway, and the observed data over a period of time is compiled. The difference between the initial observation value and the latest observation value is the cumulative movement of the current section. The system records and compiles distance data for each section, plotting distance measurement data curves and movement curves. Alert plans are then established based on relevant requirements. Based on each observation data, the system automatically determines whether an alert is issued and displays the deformation amount and deformation speed trends for each roadway section.

[0095] This embodiment radically solves the problems of bulky underground coal mine equipment, cumbersome and complex rope-pulling operations, and data measurement being affected by human factors, resulting in uncontrollable data quality. It significantly shortens distance measurement time, eliminating the need for repeated rope pulling, distance measurement, and rope retraction. This overturns the traditional cross-point distance measurement method, significantly improving the efficiency of observation point measurement and ensuring data accuracy and reliability. A creative design for a surrounding rock displacement monitoring and management system also features automatic measurement of four distance data using a rangefinder, positioning each observation point using location identification cards, real-time reading and receiving of laser rangefinder measurement data via a mobile management platform, and review of historical measurement data. The server management platform then centrally manages and displays all data, including comprehensive early warning tunnel cross-sections, time-based display of distance measurement data for each section, and a highly user-configurable early warning solution.

[0096] The laser rangefinder designed in this embodiment performs laser distance measurement in four directions simultaneously, and can complete the tasks of pulling the rope to find the center point, measuring the distance on four sides respectively, retracting the rope, recording position information and measurement data in one go. It perfectly avoids the tedious work of pulling and hanging the rope, and avoids the situation where it is inconvenient to cross the tunnel due to obstruction by large equipment. At the same time, it greatly reduces the human error of observation by different operators and the uncertainty of data recording, ensuring the accuracy and reliability of distance measurement and data recording.

[0097] This embodiment uses a mobile management platform to read measurement data, write location identification cards, and store and upload data, thereby solving the problems of untimely, difficult statistics, and unanalyzable data recording in traditional methods, and also preventing operators from falsifying data during data measurement.

[0098] This embodiment realizes intelligent management such as storage and recording, statistical analysis, and intelligent early warning of actual observation distance data through the intelligent monitoring and early warning management system platform. The data change trend and movement warning status of each working face, each tunnel, and each section can be intuitively viewed through the system platform, realizing intuitive, efficient, automated, and intelligent management of mine pressure manifestation.

[0099] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the method and core concept of this application. At the same time, for those skilled in the art, based on the concept of this application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A laser rangefinder based on the cross-point method, characterized in that: The laser rangefinder based on the cross-point method comprises: case; A first laser distance measuring component, located on the upper end surface of the housing, is used to measure a first distance between a first reference point and a center point, wherein the first reference point is located on the roof of a section to be observed in a coal mine tunnel; A second laser distance measuring component, located at the lower end surface inside the housing, for measuring a second distance between a second reference point and the center point, wherein the second reference point is located on the bottom plate of the section to be observed; A third laser distance measuring component, located on the left end surface inside the housing, and used to measure a third distance between a third reference point and the center point, wherein the third reference point is located on the left side of the section to be observed; A fourth laser distance measuring component, located at the right end surface inside the housing, and used for measuring a fourth distance between a fourth reference point and the center point, wherein the fourth reference point is located on the right side of the section to be observed; The control module is located inside the shell and is connected to the first laser ranging component, the second laser ranging component, the third laser ranging component and the fourth laser ranging component, and is used to calculate the actual distance from the center point to the top plate, the actual distance from the center point to the bottom plate, the actual distance from the center point to the left side and the actual distance from the center point to the right side according to the first distance, the second distance, the third distance, the fourth distance and the corresponding offset.

2. The laser rangefinder based on the cross-point method according to claim 1, characterized in that: The first laser ranging component specifically includes: A first laser generator, used for emitting a laser beam to a first reflecting surface at a first reference point; A first laser distance measuring sensor, used for receiving the laser beam reflected by the first reflection surface and calculating the first distance; The second laser ranging component specifically includes: A second laser generator, used for emitting a laser beam to a second reflecting surface at a second reference point; A second laser distance measuring sensor, used for receiving the laser beam reflected by the second reflection surface and calculating the second distance; The third laser ranging component specifically includes: A third laser generator, used for emitting a laser beam to a third reflection surface at a third reference point; A third laser distance measuring sensor, used for receiving the laser beam reflected by the third reflection surface and calculating the third distance; The fourth laser ranging component specifically includes: a fourth laser generator, used for emitting a laser beam to a fourth reflecting surface at a fourth reference point; The fourth laser ranging sensor is used to receive the laser beam reflected by the fourth reflecting surface and calculate the fourth distance.

3. The laser rangefinder based on the cross-point method according to claim 1, characterized in that: The laser rangefinder based on the cross point method also includes: A fine-tuning knob is located on the housing, connected to the first laser ranging component and the second laser ranging component, and is used to adjust the laser angle of the first laser ranging component and the second laser ranging component.

4. The laser rangefinder based on the cross-point method according to claim 1, characterized in that: The laser rangefinder based on the cross point method also includes: The location card identification module is located inside the shell and connected to the control module. It is used to identify the location identification card and obtain the cross-sectional information in the location identification card. The location identification card is used to store the cross-sectional information, and the cross-sectional information includes the working face information and lane information of the cross-sectional area.

5. The laser rangefinder based on the cross-point method according to claim 4, characterized in that: The laser rangefinder based on the cross point method also includes: A display screen is located outside the shell and connected to the control module, and is used to display measurement data and the cross-sectional information, wherein the measurement data includes the actual distance from the center point to the top plate, the actual distance from the center point to the bottom plate, the actual distance from the center point to the left side, and the actual distance from the center point to the right side.

6. The laser rangefinder based on the cross-point method according to claim 1, characterized in that: The laser rangefinder based on the cross point method also includes: A rechargeable battery is located inside the shell and is connected to the first laser ranging component, the second laser ranging component, the third laser ranging component, the fourth laser ranging component and the control module to provide power.

7. A surrounding rock displacement monitoring and management system, characterized in that: The surrounding rock displacement monitoring and management system comprises: The laser rangefinder based on the cross-point method as claimed in any one of claims 1 to 6 is used to periodically obtain measurement data of each section to be observed, wherein the measurement data includes the actual distance from the center point to the top plate, the actual distance from the center point to the bottom plate, the actual distance from the center point to the left side and the actual distance from the center point to the right side; A mobile management platform, connected to the laser rangefinder, for storing and displaying the measurement data of each section to be observed; The server management platform is connected to the mobile management platform and is used to calculate the section movement amount according to the measurement data of each section to be observed.

8. The surrounding rock displacement monitoring and management system according to claim 7, characterized in that: The server management platform is also used to draw a view based on the measurement data and / or the cross-section movement amount, wherein the view includes a distance monitoring curve, a movement amount monitoring curve and a lane change diagram.

9. The surrounding rock displacement monitoring and management system according to claim 7, characterized in that: The server management platform is also used to determine whether to issue an early warning based on the cross-section movement amount.

Images