CN110132157A - A kind of metro safety distal end automatic monitoring and analysis system and method - Google Patents
A kind of metro safety distal end automatic monitoring and analysis system and method Download PDFInfo
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- CN110132157A CN110132157A CN201910460352.8A CN201910460352A CN110132157A CN 110132157 A CN110132157 A CN 110132157A CN 201910460352 A CN201910460352 A CN 201910460352A CN 110132157 A CN110132157 A CN 110132157A
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/21—Design, administration or maintenance of databases
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/25—Integrating or interfacing systems involving database management systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/20—Software design
- G06F8/24—Object-oriented
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation
Abstract
The invention belongs to safety for tunnel engineering monitoring, early warning field, disclose a kind of metro safety distal end automatic monitoring and analysis system and method.The system includes: total station, prism, presence server, obliquity sensor, automatic collection case, central database, three-dimensional laser scanner, processor and tunnel structure extraction procedure module；The total station is used to monitor the settling data of subway tunnel；The three-dimensional laser scanner is used to scan the three dimensional point cloud for obtaining subway tunnel and track, the tunnel structure extraction procedure module is used for when being called by the processor, and the cross section correct method based on least square obtains cross section deformation situation, convergent deformation situation, section of jurisdiction faulting of slab ends situation and the gauge deformation of subway tunnel structure from three dimensional point cloud.The present invention can not obtain the defect of tunnel three-dimensional overall deformation information for total station and obliquity sensor, and 3 D laser scanning analytical technology is applied to metro operation monitoring, realizes comprehensive automation monitoring.
Description
Technical field
The invention belongs to safety for tunnel engineering monitoring, early warning field, automatic more particularly, to a kind of metro safety distal end
Change monitoring and analysis system and method.
Background technique
As urbanization rate and vehicle guaranteeding organic quantity rapidly increase, asked to alleviate thus bring ground traffic congestion
Topic, the public transportation system that rail traffic underground structure is fast as a kind of speed, freight volume is big are gathered around to alleviate the traffic of big city ground
Stifled, the problems such as carrying capacity is insufficient, provides effective solution means.
But the high speed development of urban track traffic is also along with security risk.Due to geological conditions, train operation,
The factors such as face architecture construction, subway tunnel structure itself load, construction level, rail traffic underground structure are runed in the life-cycle
The diseases such as sedimentation, deformation, crack, percolating water will occur in period.These diseases not only will affect city rail underground traffic
As the use function in fast and safely channel, and if these diseases cannot be found in time and corresponding maintenance is taken to arrange
It applies, it would be possible to there are the major accidents such as the even serious collapsing of tunnel main structure unstability, serious cracking, it is final to threaten the public's
The security of the lives and property.
In order to ensure rail traffic underground structure is in the safety and stablization of operation phase, underground tunnel structure shape is grasped in time
Condition, it is necessary to safety monitoring is carried out to it, but not only low efficiency, labour cost are high, complex procedures for traditional personal monitoring's means, and
And monitoring can only carry out after withdrawal of train, cannot be monitored in real time to its operation state.
Therefore, needing one kind may be implemented subway tunnel structure situation IPsec Remote automatic monitoring function and three-dimensional laser
Scan the method and system of Analysis on monitoring data function.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of metro safety distal end automation prisons
Survey and analysis system and method, it is intended that 3 D laser scanning method is combined with traditional cloth point type monitoring method,
Thus traditional artificial monitoring means low efficiency, the labour cost height, complex procedures of the monitoring of subway tunnel structure operation stage are solved, no
The technical issues of its operation state capable of being monitored in real time.
To achieve the goals above, according to one aspect of the present invention, a kind of metro safety distal end automation prison is provided
Survey and analysis system, comprising: total station, prism, presence server, obliquity sensor, automatic collection case, central database, three
Tie up laser scanner, processor and tunnel structure extraction procedure module；
The total station is used to monitor the settling data of subway tunnel；
The prism will be laid for being laid in the monitoring section of subway tunnel on the monitoring section monitored in section
Measuring point reflex to total station；
The presence server is used to that the detection data of total station to be formatted and be stored, and format is converted
Data afterwards are transmitted to the central database of distal end；
The obliquity sensor is used to acquire the inclination data of monitoring section；
The central database that the automatic collection case is used for the inclination data that collects and is transmitted to distal end；
The three-dimensional laser scanner is used to scan the three dimensional point cloud for obtaining subway tunnel and track, the tunnel knot
Structure extraction procedure module is used for when being called by the processor, and the cross section correct method based on least square is from three dimensional point cloud
Middle cross section deformation situation, convergent deformation situation, section of jurisdiction faulting of slab ends situation and the gauge deformation for obtaining subway tunnel structure.
Further, the three-dimensional laser scanner includes tunnel scanning element, plate control unit, target ball positioning list
Member and rail profile scanning element；
The tunnel scanning element is respectively used to sweep tunnel and track progress three-dimensional with the rail profile scanning element
It retouches；
The target ball positioning unit for point cloud data calibration be registrated；
Plate control unit is operation control panel, for controlling the work of the three-dimensional laser scanner.
To achieve the goals above, other side according to the invention provides a kind of automation of metro safety distal end
Monitoring and analysis method, include the following steps:
Step 1: setting up a kind of metro safety distal end automatic monitoring as described in claim 1 and analysis system；
Step 2: extracting monitoring time, monitoring sensing from the primary monitoring data of obliquity sensor by local data base
Device number and inclination angle monitoring data, and be stored in local data base, in case calling；
The three dimensional point cloud for obtaining tunnel and track is scanned by three-dimensional laser scanner, and is transmitted to the center of distal end
Database；
Step 3: the processor of distal end transfers three dimensional point cloud from the central database, establishes the three of subway tunnel and track
Dimension module, the cross section correct method based on least square obtain the cross section deformation feelings of subway tunnel structure from three dimensional point cloud
Condition, convergent deformation situation, section of jurisdiction faulting of slab ends situation and gauge deformation, and export to Visualization Platform and shown.
Further, the specific distribution method in the step 1 is as follows:
Total station is anchored on tunnel duct piece wall and is connect with presence server, the monitoring criteria point of total station is selected
It is settled at relatively stable ventilating shaft at monitoring section both ends；
Multiple settlement monitoring sections are set in entirely monitoring section, respectively in the interior vault of each settlement monitoring section, two
Haunch, railway roadbed two sides lay measuring point, and lay multiple prisms in entire settlement monitoring section, and each measuring point is reflexed to whole station
Instrument；
Obliquity sensor is arranged at monitoring section, and is connect with automatic collection case；
In subway distal end setting central database, and establishes and be wirelessly connected with total station and automatic collection case.
Further, in the step 2, byte of the presence server according to every part monitoring information in primary monitoring data
Sequence is indexed with byte-sized, monitoring time, monitoring sensor number and inclination angle monitoring data is extracted, then
It is transmitted in the central database of distal end, to realize the parsing of data.
Further, step 3 includes following sub-step:
3.1: the processor of distal end transfers three dimensional point cloud from the central database, is retained according to data to be analyzed effective
Point deletes Null Spot, to carry out a cloud denoising, establishes the threedimensional model of subway tunnel and track, then intercepts out section and cut
Piece point cloud；The data to be analyzed include cross section deformation situation, convergent deformation situation, section of jurisdiction faulting of slab ends situation and gauge deformation feelings
Condition；
3.2: the cross sectional slice point cloud coordinate information after export denoising, to be fitted the sectional curve of section of jurisdiction: it is disconnected to set section of jurisdiction
The general equation of surface curve is the general equation of elliptic curve, i.e. formula (1):
Ax2+Bxy+Cy2+ Dx+Ey+F=0 (1)
A, B, C, D, E, F of formula (1) are initialized as A respectively0、B0、C0、D0、E0、F0, obtain initiation parameter matrix p0
=[A0 B0 C0 D0 E0 F0], so that formula (1) be initialized；Then the point cloud coordinate that cross sections are sliced is substituted into just respectively
Formula (1) after beginningization is fitted, and obtains the sectional curve of cross sections slice；
3.4: the sectional curve based on cross sections slice calculates the cross section deformation situation of subway tunnel structure, convergent deformation
Situation, section of jurisdiction faulting of slab ends situation and gauge deformation, and export to Visualization Platform and shown.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial to effect
Fruit:
1, of the invention compensated for using three-dimensional laser scanning technique to subway tunnel progress three-dimensional panorama monitoring is based on entirely certainly
The conventional monitoring methods of dynamic total station and obliquity sensor " cloth point type " can not Overall Acquisition structure entirety deformation, obtain
The three dimensional point cloud of monitoring section, is obtained from the point cloud data of magnanimity by the methods of the cross section correct based on least square
Cross section deformation situation, convergent deformation situation, section of jurisdiction faulting of slab ends situation and the gauge deformation of subway tunnel structure are taken, very well
Ground solves the problems, such as traditional personal monitoring's means low efficiency, labour cost height, complex procedures.
2, the present invention is by laying respective sensor in subway tunnel, with network transmission technology, information acquiring technology, data
Based on processing technique and computer technology etc., realizes and subway tunnel structure situation is carried out automatically, in real time, for a long time
The variation of its structural behaviour is grasped in safety monitoring with this, to the efficiency of operation for improving rail traffic underground structure, ensures that the people are raw
Life property safety is extremely important.
Detailed description of the invention
Fig. 1 is the metro safety distal end automatic monitoring of the preferred embodiment of the present invention and the frame flowsheet synthesis of analysis system
Schematic diagram.
Fig. 2 is that the total station monitoring data of the preferred embodiment of the present invention transmit schematic diagram.
Fig. 3 is that the inclination angle monitoring data of the preferred embodiment of the present invention transmit schematic diagram.
Fig. 4 is that the three-dimensional laser scanner panorama of the preferred embodiment of the present invention monitors flow chart.
Fig. 5 is the obliquity sensor primary monitoring data coding schematic diagram of the preferred embodiment of the present invention.
Fig. 6 is the integration realization flow chart of the BIM visualization of 3 d model of the preferred embodiment of the present invention.
Fig. 7 is the parsing implementation flow chart of the point cloud data of the preferred embodiment of the present invention.
Fig. 8 is called and data interaction implementation flow chart between the Java and Matlab of the preferred embodiment of the present invention；
Fig. 9 is each section maximum deformation value in the monitoring section obtained using the system monitoring of the preferred embodiment of the present invention；
Figure 10 is the clearance convergence change curve obtained using the system monitoring of the preferred embodiment of the present invention；
Figure 11 is faulting of slab ends value between the monitoring section inner tube piece obtained using the system monitoring of the preferred embodiment of the present invention；
Figure 12 be using the preferred embodiment of the present invention system monitoring obtain with standard gauge difference curve figure；
The point position artwork of Figure 13 preferred embodiment of the present invention, wherein 1- rail level line, 2- prism.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
Fig. 1 is the metro safety distal end automatic monitoring of the preferred embodiment of the present invention and the frame flowsheet synthesis of analysis system
Schematic diagram, in the present embodiment, which mainly includes coming the full-automatic total station of card TM50, prism 2, configured with GeoCOM software
Presence server, public 4G wireless network, JMQJ-7330X type obliquity sensor, ZIGBEE automatic collection case, DTU is wireless mould
Block, GPRS public wireless network, comes card SiTrack:One type movable type three-dimensional laser scanner at RS232 communication cable.
The full-automatic total station of card TM50 that comes is placed on firm irony monitor station, and irony monitor station passes through in tunnel
Expansion bolt is squeezed on the wall of road section of jurisdiction and fills the mode of structure glue and tunnel structure is fastened.The selection of monitoring criteria point is being supervised
It surveys section both ends to settle at relatively stable ventilating shaft, it is characterised in that monitoring data amount is small, interruption acquisition settling data.
The prism, which refers to, is spaced about 20m in entirely monitoring section setting settlement monitoring section, section, is arranged multiple
Monitoring section, measuring point is laid in 5 positions such as vault, two haunches, railway roadbed two sides in monitoring section respectively, and point position is as schemed
13, multiple prisms are laid in the entire section that monitors altogether, are used cooperatively with total station.
The presence server configured with GeoCOM software carries out wired connection with total station, and total station monitors to obtain
Data will carry out respective handling in the GeoCOM software for initially entering presence server, result that treated will be stored to scene
In the database of server, formed have table structure and table data list file, then presence server reuse public 4G without
These list files are transmitted in the central database of distal end by gauze network, complete entire transformation task.
The JMQJ-7330X type obliquity sensor is arranged at monitoring section, the data that obliquity sensor monitors by
Field erected ZIGBEE automatic collection case and DTU wireless module carry out the acquisition and transmission of data.Automation collection case is first
The data monitored to each obliquity sensor are acquired, and data are connected with DTU wireless module by RS232 interface later
It connects, after data are transferred to DTU wireless module from RS232 communication cable, distal end will be transferred to by GPRS public wireless network
In central database, to complete transformation task.
The card SiTrack:One type movable type three-dimensional laser scanner that comes is controlled by P40 Laser Scanning Equipment, plate
Several part compositions such as equipment, target ball positioning device, rail profile scanning device.Wherein come card laser scanner P40 and rail
Road profile scanning instrument is each responsible for carrying out tunnel and track 3-D scanning, and the target ball in equipment is responsible for carrying out point cloud data
Calibration be registrated.After measurement start-stop point and datum mark are laid and be measured, scanner is placed in orbit, starting point is pushed into
The middle position for locating two rows of target balls, guarantees that four target balls can be scanned simultaneously in the initial calibration of scanner, scanner exists
It can start to be scanned after calibration.
Fig. 2~Fig. 4 is that the monitoring data of of the invention three main monitoring instruments transmit schematic diagram.
Metro safety distal end automatic monitoring functional module and 3 D laser scanning Analysis on monitoring data function of the invention
The software development system of module, by traditional conventional monitoring methods based on full-automatic total station and obliquity sensor and based on three
The three-dimensional panorama monitoring method of dimension laser scanning is combined togather, and three-dimensional laser scanning technique carries out subway tunnel three-dimensional complete
Scape monitoring compensates for the conventional monitoring methods based on full-automatic total station and obliquity sensor " cloth point type " can not Overall Acquisition knot
The deformation of structure entirety has obtained the three dimensional point cloud of monitoring section, passes through the side such as cross section correct based on least square
Method obtains the cross section deformation situation, convergent deformation situation, section of jurisdiction faulting of slab ends feelings of subway tunnel structure from the point cloud data of magnanimity
Condition and gauge deformation.
The metro safety distal end automatic monitoring functional module is mainly checked by total station monitoring data and is passed with inclination angle
Sensor monitoring data check two sub- function compositions.The 3 D laser scanning Analysis on monitoring data functional module develops energy
Point cloud data is enough completed to import, parsing, manage, the 3 D laser scanning Analysis on monitoring data functional module of calculating and analysis, it should
Three subfunctions such as functional module has track deformation calculating, section Points cloud Fitting, cross section deformation data are checked.
Before carrying out the parsing of obliquity sensor primary monitoring data, as shown in figure 5, needing hexadecimal data conversion
For character string forms, due to having the method body that hexadecimal ACSII code is directly converted to character string in Java language
Integer.toHexString (), it is possible to monitoring data are directly subjected to character string using this method body in a program
Conversion, the data after conversion are encoded, then the byte order and word according to every part monitoring information in initial data
Section size is indexed, and is converted to Java variable after monitoring time, monitoring sensor number and monitoring data are extracted
It is stored in database, to realize the parsing of data.
Fig. 6 is the integration realization flow chart of BIM visualization of 3 d model of the present invention, essentially consist in the parsing of point cloud data with
The realization of data interaction and calling interface between Java and Matlab.Since the software platform interface that the present embodiment uses uses
What the JavaScript programming language based on Web was developed, and monitoring data are then preservations into SQL database, so if
By BIM visualization of 3 d model integrated into functional module, realizes three-dimensional visualization monitoring, then need to establish BIM model and exist
Introducting interface in JavaScript.Since the Three.js technology based on WebGL can be by JavaScript and three-dimensional rendering
Routine interface OpenGL is combined together, and realizes the Three-dimensional Display of webpage, so the present embodiment is by using Three.js technology
The introducting interface of JavaScript Yu BIM Visualization Model are write.
Fig. 7 is the parsing implementation flow chart of point cloud data of the present invention, and point cloud data can be converted to by initially setting up one
The input flow object of character stream, is then put into object for the absolute path of point cloud data, and point cloud data will be traversed simultaneously later
It is converted into character stream form deposit caching, then byte index is carried out to the point cloud data of character stream form in caching, finally
It is converted to after the point cloud coordinate character stream indexed is extracted in Java variable deposit central database, to realize a cloud
The parsing of data.After above-mentioned processing, can by the introducting interface of JavaScript and BIM Visualization Model, directly from
Central database extracts point cloud coordinate, and is shown as three-dimensional BIM model.
Fig. 8 is called and data interaction implementation flow chart between Java of the present invention and Matlab.
Monitoring method of the invention is described below:
Step 1: metro safety distal end automatic monitoring and analysis system of the invention are set up in target subway line, specifically
Ground:
Total station is anchored on tunnel duct piece wall and is connect with presence server, the monitoring criteria point of total station is selected
It is settled at relatively stable ventilating shaft at monitoring section both ends；
Multiple settlement monitoring sections are set in entirely monitoring section, respectively in the interior vault of each settlement monitoring section, two
Haunch, railway roadbed two sides lay measuring point, and lay multiple prisms (such as Figure 13) in entire settlement monitoring section, and each measuring point is reflected
To total station；
Obliquity sensor is arranged at monitoring section, and is connect with automatic collection case；
In subway distal end setting central database, and establishes and be wirelessly connected with total station and automatic collection case.
Step 2: extracting monitoring time, monitoring sensing from the primary monitoring data of obliquity sensor by local data base
Device number and inclination angle monitoring data, and be stored in local data base, in case calling；
The three dimensional point cloud for obtaining tunnel and track is scanned by three-dimensional laser scanner, and is transmitted to the center of distal end
Database；
Preferably, byte order and byte-sized of the presence server according to every part monitoring information in primary monitoring data
It is indexed, monitoring time, monitoring sensor number and inclination angle monitoring data is extracted, are then transmit in distal end
In heart database, to realize the parsing of data.
Step 3: the processor of distal end transfers three dimensional point cloud from the central database, establishes the three of subway tunnel and track
Dimension module, the cross section correct method based on least square obtain the cross section deformation feelings of subway tunnel structure from three dimensional point cloud
Condition, convergent deformation situation, section of jurisdiction faulting of slab ends situation and gauge deformation, and export to Visualization Platform and shown.
Preferably, step 3 includes following sub-step:
3.1: the processor of distal end transfers three dimensional point cloud from the central database, is retained according to data to be analyzed effective
Point deletes Null Spot, to carry out a cloud denoising, establishes the threedimensional model of subway tunnel and track, then intercepts out section and cut
Piece point cloud；The data to be analyzed include cross section deformation situation, convergent deformation situation, section of jurisdiction faulting of slab ends situation and gauge deformation feelings
Condition；
3.2: the cross sectional slice point cloud coordinate information after export denoising, to be fitted the sectional curve of section of jurisdiction: it is disconnected to set section of jurisdiction
The general equation of surface curve is the general equation of elliptic curve, i.e. formula (1):
Ax2+Bxy+Cy2+ Dx+Ey+F=0 (1)
A, B, C, D, E, F of formula (1) are initialized as A respectively0、B0、C0、D0、E0、F0, obtain initiation parameter matrix p0
=[A0 B0 C0 D0 E0 F0], so that formula (1) be initialized；Then the point cloud coordinate that cross sections are sliced is substituted into just respectively
Formula (1) after beginningization is fitted, and obtains the sectional curve of cross sections slice；
3.4: the sectional curve based on cross sections slice calculates the cross section deformation situation of subway tunnel structure, convergent deformation
Situation, section of jurisdiction faulting of slab ends situation and gauge deformation, and export to Visualization Platform and shown, the deformation of monitoring section discontinuity surface
Maximum value, convergent deformation situation, section of jurisdiction faulting of slab ends situation and gauge deformation such as Fig. 9~Figure 12.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (6)
1. a kind of metro safety distal end automatic monitoring and analysis system characterized by comprising total station, prism, scene clothes
Business device, obliquity sensor, automatic collection case, central database, three-dimensional laser scanner, processor and tunnel structure extract journey
Sequence module；
The total station is used to monitor the settling data of subway tunnel；
The prism is used to be laid in the monitoring section of subway tunnel, will monitor the survey laid on the monitoring section in section
Point reflection is to total station；
The presence server is for formatting and store to the detection data of total station, and after format is converted
Data are transmitted to the central database of distal end；
The obliquity sensor is used to acquire the inclination data of monitoring section；
The central database that the automatic collection case is used for the inclination data that collects and is transmitted to distal end；
The three-dimensional laser scanner is used to scan the three dimensional point cloud for obtaining subway tunnel and track, and the tunnel structure mentions
Program fetch module is used for when being called by the processor, and the cross section correct method based on least square is obtained from three dimensional point cloud
Take cross section deformation situation, convergent deformation situation, section of jurisdiction faulting of slab ends situation and the gauge deformation of subway tunnel structure.
2. a kind of metro safety distal end automatic monitoring as described in claim 1 and analysis system, which is characterized in that described three
Tieing up laser scanner includes tunnel scanning element, plate control unit, target ball positioning unit and rail profile scanning element；
The tunnel scanning element and the rail profile scanning element are respectively used to carry out 3-D scanning to tunnel and track；
The target ball positioning unit for point cloud data calibration be registrated；
Plate control unit is operation control panel, for controlling the work of the three-dimensional laser scanner.
3. a kind of metro safety distal end automatic monitoring and analysis method, which comprises the steps of:
Step 1: setting up a kind of metro safety distal end automatic monitoring as described in claim 1 and analysis system；
Step 2: extracting monitoring time from the primary monitoring data of obliquity sensor by local data base, monitoring sensor is compiled
Number and inclination angle monitoring data, and be stored in local data base, in case calling；
The three dimensional point cloud for obtaining tunnel and track is scanned by three-dimensional laser scanner, and is transmitted to the centre data of distal end
Library；
Step 3: the processor of distal end transfers three dimensional point cloud from the central database, establishes the three-dimensional mould of subway tunnel and track
Type, the cross section correct method based on least square obtain the cross section deformation situation of subway tunnel structure from three dimensional point cloud, receive
Deformation, section of jurisdiction faulting of slab ends situation and gauge deformation are held back, and exports to Visualization Platform and is shown.
4. a kind of metro safety distal end automatic monitoring as claimed in claim 3 and analysis method, which is characterized in that the step
Specific distribution method in rapid 1 is as follows:
Total station is anchored on tunnel duct piece wall and is connect with presence server, the monitoring criteria point selection of total station is being supervised
Section both ends are surveyed to settle at relatively stable ventilating shaft；
In entirely monitoring section, multiple settlement monitoring sections are set, respectively the interior vault of each settlement monitoring section, two haunches,
Measuring point is laid in railway roadbed two sides, and lays multiple prisms in entire settlement monitoring section, and each measuring point is reflexed to total station；
Obliquity sensor is arranged at monitoring section, and is connect with automatic collection case；
In subway distal end setting central database, and establishes and be wirelessly connected with total station and automatic collection case.
5. a kind of metro safety distal end automatic monitoring as claimed in claim 3 and analysis method, which is characterized in that the step
In rapid 2, presence server is indexed according to the byte order of every part monitoring information in primary monitoring data with byte-sized,
Monitoring time, monitoring sensor number and inclination angle monitoring data are extracted, the central database of distal end is then transmit to
In, to realize the parsing of data.
6. a kind of metro safety distal end automatic monitoring and analysis method as described in claim 3~5 any one, feature
It is, step 3 includes following sub-step:
3.1: the processor of distal end transfers three dimensional point cloud from the central database, retains available point according to data to be analyzed, deletes
Except Null Spot, to carry out a cloud denoising, the threedimensional model of subway tunnel and track is established, cross sectional slice point is then intercepted out
Cloud；The data to be analyzed include cross section deformation situation, convergent deformation situation, section of jurisdiction faulting of slab ends situation and gauge deformation；
3.2: the cross sectional slice point cloud coordinate information after export denoising, to be fitted the sectional curve of section of jurisdiction: it is bent to set section of jurisdiction section
The general equation of line is the general equation of elliptic curve, i.e. formula (1):
Ax2+Bxy+Cy2+ Dx+Ey+F=0 (1)
A, B, C, D, E, F of formula (1) are initialized as A respectively0、B0、C0、D0、E0、F0, obtain initiation parameter matrix p0=[A0
B0 C0 D0 E0 F0], so that formula (1) be initialized；Then after the point cloud coordinate of cross sections slice being substituted into initialization respectively
Formula (1) be fitted, obtain cross sections slice sectional curve；
3.4: the sectional curve based on cross sections slice calculates cross section deformation situation, the convergent deformation feelings of subway tunnel structure
Condition, section of jurisdiction faulting of slab ends situation and gauge deformation, and export to Visualization Platform and shown.
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| CN110926439A (en) * | 2019-11-29 | 2020-03-27 | 华中科技大学 | Operation tunnel structure health monitoring system based on BIM technology |
| CN111895962A (en) * | 2020-06-29 | 2020-11-06 | 中铁隆工程集团有限公司 | Method for monitoring deformation of operation subway station |
| CN112761724A (en) * | 2020-12-25 | 2021-05-07 | 中铁十局集团有限公司 | Monitoring method based on automatic tunnel monitoring system |
| CN112857255A (en) * | 2021-03-01 | 2021-05-28 | 江苏中设集团股份有限公司 | Intelligent monitoring system and method based on three-dimensional laser scanning technology |
| CN113820328A (en) * | 2021-09-23 | 2021-12-21 | 广州利科科技有限公司 | Tunnel disease detection method and tunnel disease detection device based on laser detection |
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