CN109459094A - Grid displacement test system and method based on ten axle sensors - Google Patents
Grid displacement test system and method based on ten axle sensors Download PDFInfo
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Abstract
The present disclosure proposes a kind of grid displacement test systems and method based on ten axle sensors, comprising: ten axle sensor chips are embedded in TGXG；Ten axle sensor chips acquire monitoring point all data information, and the data information is uploaded to management monitoring cloud platform；Information by comprehensive analysis obtains the geogrid deformation amount and the variation of displacement of monitoring point to management monitoring cloud platform according to the collected data, and carries out correction process to data information, reduces error rates of data, improves data integrity rate；The data information and analyze result synchronized update to monitor database server that management monitoring cloud platform acquires ten axle sensor chips；Remote monitoring center extracts the data in monitor database server, TGXG overall structure is obtained after being further processed generates the width in crack and its trend of extension, and real-time monitoring, the final automatic monitoring and geo-hazard early-warning for realizing TGXG integrality are carried out to the destruction trend of TGXG entirety.
Description
Technical field
This disclosure relates to civil engineering monitoring technical field, more particularly to the grid displacement measurement based on ten axle sensors
System and method.
Background technique
Geological disaster takes place frequently in recent years, and the life and safety to the people make a big impact, and not only causes to job facilities
It destroys, also has brought tremendous economic losses, therefore, prevention of geological disaster measure appropriate should be taken, come geology as far as possible
Disaster bring minimization of loss.And mostly the region that may be destroyed is carried out according to construction experience and engineering are practical in engineering at present
Consolidation process emphatically lacks unified discrimination standard since the various aspects such as topographic and geologic, environment factor is all different, for
The region that determining possibility is destroyed is affected by subjective factor, thereby increases and it is possible to there is judgment bias, not only took time and effort, but also exist compared with
Big contingency.Therefore it establishes one and can be differentiated according to the actual conditions of engineering and predict the system of its frangible regions have very much must
It wants.
TGXG is mostly used to do protective net, stable side slope in civil engineering at this stage.TGXG have intensity stabilization,
Deform small, anticorrosion, wear-resistant, anti-aging, the service life is long, it is at low cost, have the features such as stronger bearing capacity, applied in engineering
Extensively, it is suitable for reinforcing the engineerings such as pitch and cement pavement, retaining wall, embankment dam and rivers sea wall.
It focuses mostly at present to the research of geological hazards prediction method and passes through observation structure in experiment and numerical simulation, experiment
Displacement or deflection judge structural damage situation and development trend, due to the destruction naked eyes of subtle disruption and interior zone
It is difficult to observe, and judges to be influenced by subjective factor, human error is larger, and numerical simulation does not have due to lacking Experimental comparison
It is representative.Therefore existing geological hazards prediction method assumed condition is larger with actual variance, leads to prediction result reliability
Difference can not form unified theory.Therefore geological hazards prediction method needs to be further studied.
Exist in existing engineering using the method for bundling TGXG and strain sensing fiber grating, to measure
It is deformed and stress condition, but this mode is easier to loosen due to binding mode, once loosening will be unable to accurately capture and transmitting
Strain, leading to the data obtained, there are large errors, while the method is limited by its material, can only measure large deformation, small
Strain can not be captured accurately, therefore the minute crack in structural body will be unable to monitor, can not achieve initial stage of disasters just and
When take the purpose of corresponding measure.
In conclusion for the visual testing and forecasting problem and geology calamity that damage in geological disaster to structure
Evil does not have whole monitoring management early warning system to carry out early warning to geological disaster after damaging to structure.
Summary of the invention
In order to solve the deficiencies in the prior art, present disclose provides a kind of grid displacement measurement system based on ten axle sensors
System and method, the application combine ten axle sensors with TGXG, by the way that the chip of ten axle sensors to be partially embedded into
In TGXG, can real-time collecting TGXG monitoring point the data such as acceleration, angle, angular speed, magnetic field, and will be obtained
Data be transmitted to server or cloud storage, the deflection of TGXG monitoring point can be obtained by carrying out later data processing and analysis
And displacement, the dynamic monitoring that situation is destroyed to structure is realized, to carry out according to data with existing to the development trend that structure is destroyed
Prediction, to take corresponding safeguard procedures in advance.
Grid displacement test system based on ten axle sensors, comprising: ten axle sensor chips, TGXG, management prison
Survey cloud platform, monitor database server, remote monitoring center and mobile client；
Ten axle sensor chips are embedded in TGXG；
Ten axle sensor chips acquire monitoring point acceleration, angle, angular speed, magnetic field, height above sea level, air pressure and geographical coordinate
Data information, and the data information is uploaded into management monitoring cloud platform；
The data information that management monitoring cloud platform is acquired according to ten axle sensor chips obtains monitoring point by comprehensive analysis
Geogrid deformation amount and displacement variation, and to data information carry out correction process, reduce error rates of data, improve data
Percentage of head rice；
The data information and analysis result synchronized update that management monitoring cloud platform acquires ten axle sensor chips extremely monitor
Database server；
Remote monitoring center extracts the data in monitor database server, obtains TGXG after being further processed
Overall structure generates the width in crack and its trend of extension, and carries out real-time monitoring to the destruction trend of TGXG entirety,
To take corresponding safeguard procedures in advance, the final automatic monitoring for realizing TGXG integrality and geological disaster are pre-
It is alert；
The remote monitoring center and mobile client are carried out data transmission by wireless network.
Further, the TGXG includes upper rib and lower rib；
There must be side's connecting side to be equipped with groove in the upper rib or lower rib；
The ten axle sensors chip is externally provided with one layer of insulating protective layer, the ten axle sensors chip by binder with
Insulating protective layer closely connects, and ten axle sensor is embedded in the groove by binder；
The upper rib is welded with lower rib by ultrasonic seamless gap.
Further, the TGXG includes common TGXG and the TGXG that is embedded with ten axle sensor chips
Two kinds；
Two kinds of TGXG are laid with by way of intersecting and combining, comparatively safe region is laid with commonly
TGXG, for needing the region of monitoring to be emphatically laid with the TGXG embedded with ten axle sensor chips；
Erection method can be passed through between the common TGXG and TGXG embedded with ten axle sensor chips
It is attached.
Further, it is obtained by the change in displacement analysis of the ten axle sensor chips acquired to former and later two different moments
The change in displacement of the TGXG for the ten axle sensor chip of insertion that this period occurs further obtains geotechnique by analysis
The 3 D deformation of grid layer；
If the orientation that the displacement of ten axle sensor chips is always zero or ten axle sensor chips does not change always,
Illustrate that the TGXG for being embedded in ten axle sensor chips does not deform or change in displacement；
If the displacement of ten axle sensor chips changes or the orientation of ten axle sensor chips changes, illustrate embedding
Enter ten axle sensor chips to deform or change in displacement, timely emphasis is answered to observe the number of the ten axle sensors chip position
According to the deformation of the TGXG of ten axle sensor chip positions of analysis, convenient for taking corresponding safeguard procedures in due course.
Further, the change in displacement of the ten axle sensor chips acquired from t moment to t+ time Δt,
Δ x=x (t+ Δ t)-x (t)
Wherein, Δ x is displacement, indicates any point from t moment to the displacement of t+ time Δt；
Assuming that be formed by the variation of line segment between each observation point is indicated with normal strain, the variation of each line segment angle is answered with cutting
Becoming indicates, investigates any one mini line segment in structural body, then opposite change of its normal strain, that is, length is,
Wherein, ε is normal strain, i.e. the opposite variation of length, and l is the initial length of certain line segment, and l ' is the line segment after deformation
Length；
Its shearing strain, that is, direction relative changes is,
γ=α-α '
Wherein, γ is shearing strain, is used to indicate that the amount of angle change, and α and α ' respectively indicate the intracorporal any line of structure
Section before being deformed after angle.
Further, data interaction can be carried out by LoRa wireless sensor network between the ten axle sensors chip；
In the ten axle sensors chip and management monitoring cloud platform, the monitor database server and long-range monitoring
The heart, the remote monitoring center and mobile client can be connected respectively by GPRS or wireless 3G/4G network or Beidou communication mode
It connects.
Further, the remote monitoring center can monitor automatically each dimensional parameter of TGXG in 24 hours, further
The difference for the warning grade for analyzing and determining to data, and being reached according to monitor value, takes the automatic alarm side of appropriate level
Formula；
The remote monitoring center sends corresponding warning information according to the difference of warning grade to the mobile client；
The mobile client can send geology to remote monitoring center and monitor relevant information.
Further, it needs to carry out user when carrying out register with mobile client by the remote monitoring center to recognize
Card or ca authentication；
Realize that the overall process of data processing is traceable, it is ensured that upload, modification and the deletion of each data can correspond to
Each remote monitoring center and mobile client.
The application method of grid displacement test system based on ten axle sensors, comprises the following steps that
Ten axle sensor chips acquire monitoring point acceleration, angle, angular speed, magnetic field, height above sea level, air pressure and geographical coordinate
Data information, and the data information is uploaded into management monitoring cloud platform；
The data information that management monitoring cloud platform is acquired according to ten axle sensor chips obtains monitoring point by comprehensive analysis
Geogrid deformation amount and displacement variation, and to data information carry out correction process, reduce error rates of data, improve data
Percentage of head rice；
The data information and analysis result synchronized update that management monitoring cloud platform acquires ten axle sensor chips extremely monitor
Database server；
Remote monitoring center extracts the data in monitor database server, obtains TGXG after being further processed
Overall structure generates the width in crack and its trend of extension, and carries out real-time monitoring to the destruction trend of TGXG entirety,
To take corresponding safeguard procedures in advance, the final automatic monitoring for realizing TGXG integrality and geological disaster are pre-
It is alert；
When geological disaster occurs, according to the difference of disaster alarm grade, remote monitoring center is sent to mobile client
Corresponding warning information.
Further, further include that steps are as follows:
When construction, after the completion of each layer is laid with embedded with the TGXG of ten axle sensor chips, is debugged, observed immediately
Data are larger with the presence or absence of error, to carry out sensitivity debugging to ten axle sensor chips in TGXG in time；
After the completion of TGXG is all laid with, Initialize installation is carried out；
It is described based on the grid displacement test system of ten axle sensors apply initial stage, would be embedded with ten axle sensor chips
TGXG is laid with extensively, and by the way of comprehensive monitoring comprehensive monitoring geological disaster complete structure body deformation；
Using the information of acquisition process by after the completion of monitoring and warning Database, by the way of fixed point monitoring, pass through
The analytical judgment of monitoring and warning database, emphasis monitor the deformation at easily-deformable place.
Compared with prior art, the beneficial effect of the disclosure is:
1, the disclosure carries out structure by the way of being embedded in ten axle sensor chips on the basis of existing TGXG
While protection, its stress condition of real-time monitoring analyzes its displacement and deformation, so that effectively monitoring geological disaster causes structure
Destruction and its development trend, to take corresponding measure in time.
2, grid displacement test system of the disclosure based on ten axle sensors can well by body structure surface and inside
It destroys situation to reflect in real time, subtle crack can be also accurately captured, the data of acquisition are more accurate, enhance destruction
Visualization and controllability, help to take effective safeguard procedures in advance.
3, the accurate data that the disclosure is obtained and ten axle sensors are embedded into TGXG, it is highly reliable, it can
Accurately to reflect the destruction situation inside geologic structure, help that the process that geologic structure is destroyed is analyzed and ground
Study carefully, can be used as the auxiliary and control of related science research, save a large amount of field trial time, for grinding for geology destroying infection
Offer foundation is provided.
4, the disclosure is by the way of being embedded in TGXG for chip, and TGXG intensity is larger, corresponding bearing capacity
Relatively strong, anticorrosive preferable with the effect of aging, frictional resistance system is larger, and grid substep is more uniform, has convenient and fast construction technology
Technology, and service life is relatively also longer, chip insertion TGXG is smaller on the influence of the functional characteristic of TGXG, simultaneously
Quantization production can be carried out, pile line operation is easy to operate, and it is easy for construction, it does not need to carry out secondary operation, once mounting is good
It uses.
5, the advantages that ten axle sensors that the disclosure uses have that volume is extra small, high-accuracy, high reliability, inexpensive, it is non-
Often it is suitble to for its chip being embedded into TGXG, to measure displacement or the deflection of corresponding construction, to obtain the structure
Destruction situation, can real-time monitoring athletic posture, orientation, height and temperature are obtained, wherein 3 axle accelerations, 3 axis gyroscopes and 3
Axis magnetometer, embedded digital motion process engine can reduce complicated fusion, possess lower power consumption, be more suitable for wearable
Equipment, and built-in temperature sensor in barometertic altimeter, can carry out temperature-compensating, possess stronger performance and lower power consumption.
Ten axle sensors reduce circuit board and overall rooms as integrated transducer module.The data of integrated transducer are accurate
It spends other than the precision of equipment itself, the correction after also relating to assemble welding, and for the different mating algorithms used.It is suitable
Data fusion from multiple sensors can be compensated for single sensor and calculate accurate orientation and direction by suitable algorithm
When shortage, then complete high-precision motion detection.
Detailed description of the invention
The Figure of description for constituting a part of this disclosure is used to provide further understanding of the disclosure, and the disclosure is shown
Meaning property embodiment and its explanation do not constitute the improper restriction to the disclosure for explaining the disclosure.
Fig. 1 is the TGXG side sectional view embedded with ten axle sensors of the disclosure；
Fig. 2 is the TGXG positive structure schematic embedded with ten axle sensors of the disclosure；
Fig. 3 is the TGXG overall structure diagram embedded with ten axle sensors of the disclosure；
Fig. 4 is the TGXG decomposition diagram embedded with ten axle sensors of the disclosure；
Wherein, 1 is TGXG, and 2 be ten axle sensor chips, and 3 be upper rib, and 4 be lower rib.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the disclosure.Unless another
It indicates, all technical and scientific terms used herein has usual with disclosure person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the disclosure.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As background technique is introduced, exist in the prior art visual for being damaged in geological disaster to structure
Change the deficiency of test and prediction, in order to solve technical problem as above, the present disclosure proposes a kind of lattice based on ten axle sensors
Grid displacement test system and method.
In order to enable those skilled in the art can clearly understand the technical solution of the disclosure, below with reference to tool
The technical solution of the disclosure is described in detail in the embodiment and comparative example of body.
Embodiment 1
Grid displacement test system based on ten axle sensors, comprising: ten axle sensor chips, TGXG, management prison
Survey cloud platform, monitor database server, remote monitoring center and mobile client.
Ten axle sensor chips are embedded in TGXG；As shown in Figure 1, being the soil embedded with ten axle sensors of the disclosure
Work grid side sectional view；
Ten axle sensor chips acquire monitoring point acceleration, angle, angular speed, magnetic field, height above sea level, air pressure and geographical coordinate
Data information, and the data information is uploaded into management monitoring cloud platform；
The data information that management monitoring cloud platform is acquired according to ten axle sensor chips obtains monitoring point by comprehensive analysis
Geogrid deformation amount and displacement variation, and to data information carry out correction process, reduce error rates of data, improve data
Percentage of head rice；
The data information and analysis result synchronized update that management monitoring cloud platform acquires ten axle sensor chips extremely monitor
Database server；
Remote monitoring center extracts the data in monitor database server, obtains TGXG after being further processed
Overall structure generates the width in crack and its trend of extension, and carries out real-time monitoring to the destruction trend of TGXG entirety,
To take corresponding safeguard procedures in advance, the final automatic monitoring for realizing TGXG integrality and geological disaster are pre-
It is alert；
Remote monitoring center and mobile client are carried out data transmission by wireless network.
Grid displacement test system based on ten axle sensors is to combine ten axle sensors with TGXG, such as Fig. 2
It is shown, it is the TGXG positive structure schematic embedded with ten axle sensors of the disclosure；By by the chip of ten axle sensors
It is partially embedded into TGXG, carrys out the motion conditions of real-time monitoring TGXG, can get the data such as acceleration, to reflect knot
The destruction situation of structure, for example by a certain grid tension, can reflect structure part cracking or have the tendency that cracking, should be directed to
This situation is adopted an effective measure control, prevents that crack from generating or crack is further extended, thus before structure is further destroyed
It takes measures, reduces structure and destroy bring economic loss, while can guarantee personnel safety, make construction personnel comparatively safe
It works under environment.Wherein, in TGXG the representative grid of selected part in length and breadth crosspoint as observation point, the sight
Measuring point is using certain algorithm and considers that current case history is practical and is chosen, it then follows " precisely choosing, peaceful how not few "
All points for having destruction trend are included by principle as far as possible, also can be reality from now on so as to widely acquire data
It tests and provides foundation with case history.When data collection is enough, a database can be formed.The database can be according to different
Engineering is practical to carry out corresponding reconnaissance analysis, the respective part being highly vulnerable to breakage of each engineering can be obtained, also so as to according to work
Journey arranges monitoring point, takes corresponding safeguard procedures.
When geological disaster generation and when structure is destroyed, TGXG deforms therewith and generates displacement, at monitoring point
Chip part can perceive the variation of grid, so that the data such as the acceleration of monitoring point are obtained in real time, data are remote by network
Journey is transmitted to server or cloud is stored, and data conversion storage processing is carried out after receiving by data conversion storage module, long-range to monitor
Data receiver in database is returned at center, carries out post-processing, the data obtained by the chip part to ten axle sensors
The displacement of grid can be obtained by carrying out analysis, so that obtaining structure generates the width in crack and its trend of extension, to structural damage
Trend carries out real-time monitoring, to take corresponding safeguard procedures in advance, the final automatic monitoring for realizing structural health conditions
With early warning, save trouble and labor facilitates economy.
As shown in figure 4, being the TGXG decomposition diagram embedded with ten axle sensors of the disclosure；TGXG includes upper
Rib and lower rib；There must be side's connecting side to be equipped with groove in upper rib or lower rib；Ten axle sensor chips are externally provided with one layer
Insulating protective layer, ten axle sensor chips are closely connect by binder with insulating protective layer, and ten axle sensors pass through binder
It is embedded in groove；Upper rib is welded with lower rib by ultrasonic seamless gap.The chip of ten axle sensors is partially submerged into geotechnological lattice
In grid, the TGXG based on ten axle sensors is consisted of three parts, the chip portion of upper rib, lower rib and ten axle sensors
Point, wherein requiring the chip part of insertion as small as possible in the case where guaranteeing that performance is stablized, to ensure that embedded part will not shadow
The strength characteristics of grid itself is rung, the chip part-structure of ten axle sensors is simple, and it is small in size, it can be made and be able to satisfy as needed
The minimum dimension of its performance requirement is embedded in grid, realizes the function of collecting data, while in order to avoid chip is by air or dirt
Soil corrosion and influence its characteristic, one layer of insulating protective layer should add outside chip, insulation anti-slip layer and grid between, chip and
Binder is used between insulating protective layer, is kept its bonding close, is sensed with guaranteeing that the minor change of grid can be transferred through chip.
Connection between upper rib and lower rib can be welded by link block through ultrasonic, so that upper rib more steps up in conjunction with lower rib
It is close, the intensity and shearing resistance of welding position are improved, its service life is enhanced.
The chip of ten axle sensors is partially embedded into TGXG, in order to not influence the performance of grid itself, Ying Jiang
Chip position selects at grid rib center, micro- in order to grid to guarantee that chip can be firmly combined together with grid
Small strain can be accurately transferred to ten axle sensors.And the TGXG that would be embedded with ten axle sensor chips is applied in various works
Cheng Zhong, such as various dykes and dams and roadbed reinforcement, side slope protection etc., TGXG are generally then to be embedded in the soil body, gravel and drip
In cyan layer, for the stress carrying of TGXG and joint anchorage then mainly by its own each node or rib come real
Existing, TGXG receives the influence and effect of associated media, only can be obtained biggish stress by the displacement of very little, rather than
The friction force that generates between TGXG and medium is relied only on to provide required stress, according to it is similar by grid to it is related
Interaction between medium is to obtain bigger active force demand.Efficient stress transfer and good is constituted therefrom
Reaction system, effectively played TGXG and be derived from itself superpower reinforcement effects, and having can be by the length of anchor ingot
It minimizes.And for the interlocking of the loading end having of itself of Plastics Geogrids and the effect that is engaged, from largely
On enhance the good guarantee of the relevant bearing capacity of roadbed and lateral displacement, also effectively enhance the permanent firm of ground.
And the TGXG for increasing ten axle sensor chips can not only play reinforcing and protective action, while again can be in TGXG
Existing stress and displacement etc. are monitored, to preferably realize the dual function of TGXG.
TGXG protective is strong, and the chip of ten axle sensors is embedded on the basis of existing TGXG, can be to knot
While structure protects, its stress condition of real-time monitoring analyzes its displacement and deformation, so that structure is made in effectively monitoring geological disaster
At destruction and its development trend, to take corresponding measure in time.
It is smaller on the influence of the functional characteristic of TGXG in such a way that chip is embedded in TGXG, while can carry out
Quantization production, pile line operation is easy to operate, easy for construction, does not need to carry out secondary operation, once mounting well can be used.
In the system initial practice stage, the distribution density of ten axle sensors of increasing, acquisition knot as much as possible can be passed through
The data of structure body different parts form the database of a displacement test system based on ten axle sensors, by data
Processing and analysis, observe the location point for most easily occurring destroying in each structural body, and formation enough to position point data is certain
Rule after, can be based on existing database, according to engineering reality, destructible location point installation be embedded with ten axle sensor cores
The TGXG of piece uses common TGXG in the higher position of other safeties, in such a way that two kinds of grids combine,
Not only the accuracy and integrality for obtaining data be can guarantee, but also can achieve the purpose that economic and reliable.The arrangement of chip in TGXG
Using quincuncial pile arrangement, every one pile layout of misarrangement increases the grid spacing for having chip.In view of economic factor and biography
Sensor acquires the accuracy of data, should be on the basis of the data fit obtained requires, as far as possible between increase chip and chip
Spacing saves resource.When being laid with grid, should be according to structural body the characteristics of, the arrangement of specific grid network is determined.
As shown in figure 3, being the TGXG overall structure diagram embedded with ten axle sensors of the disclosure；This system application
At initial stage, the mode of comprehensive monitoring, the deformation of comprehensive monitoring geological hazard body can be used, monitoring object is total body.
Pending data library, which is established, completes, and can be used the mode of fixed point monitoring, at the potential deformations such as emphasis Deformation Monitoring seam, stress concentration region
Deformation, monitoring object are at the potential deformations such as deformation, crack.After the completion of each layer of grid is laid with when construction, that is, it is
Whether system debugging, observation data have the biggish situation of error, to carry out the sensitivity debugging of sensor in grid in time.To lattice
After the completion of grid are all laid with, Initialize installation is carried out.
TGXG includes common TGXG and two kinds of TGXG embedded with ten axle sensor chips；By two kinds of soil
Work grid is laid with by way of intersecting and combining, and common TGXG is laid with for comparatively safe region, for needing
The region to monitor emphatically is laid with the TGXG for being embedded with ten axle sensor chips；Common TGXG is sensed with embedded with ten axis
It can be attached by erection method between the TGXG of device chip.Since two kinds of grids can all be produced in batches, system
Make simple process, the connection between two kinds of grids can be carried out by erection method, and construction is simple is convenient, and manpower wealth is greatly saved
The power time.
This period is obtained by the change in displacement analysis of the ten axle sensor chips acquired to former and later two different moments
The change in displacement of the TGXG of the ten axle sensor chip of insertion of generation further obtains geogrids layer by analysis
3 D deformation；
If the orientation that the displacement of ten axle sensor chips is always zero or ten axle sensor chips does not change always,
Illustrate that the TGXG for being embedded in ten axle sensor chips does not deform or change in displacement；
If the displacement of ten axle sensor chips changes or the orientation of ten axle sensor chips changes, illustrate embedding
Enter ten axle sensor chips to deform or change in displacement, timely emphasis is answered to observe the number of the ten axle sensors chip position
According to the deformation of the TGXG of ten axle sensor chip positions of analysis, convenient for taking corresponding safeguard procedures in due course.
Geological disaster at this stage destroys visual very low caused by structure, and the especially destruction of inside configuration can not be observed,
Subtle destruction such as minute crack is also difficult through naked-eye observation, and when structural damage naked eyes are visible, geological disaster at this time
Destroying caused by structure can not make up.Grid displacement test system based on ten axle sensors can be well by structure table
The destruction situation of face and inside reflects that subtle crack can be also accurately captured, and the data of acquisition are more accurate in real time,
Enhance the visualization and controllability destroyed, helps to take effective safeguard procedures in advance.
Geological disaster is destroyed caused by structure at present, is only capable of the naked-eye observation by the experimental stage, or is lacked reliable real
The numerical simulation stage tested carries out, but lacks the experiment and simulation of comparison, and reliability needs to be probed into.And it can by TGXG
Accurately to reflect the destruction situation of inside configuration, the accurate data of acquisition is highly reliable, can disposably obtain and largely may be used
By accurate data, helps that the process that structure is destroyed is analyzed and studied, can be used as the auxiliary of related science research
And control, a large amount of field trial time is saved, the research for geology destroying infection provides foundation.
The change in displacement of the ten axle sensor chips acquired from t moment to t+ time Δt,
Δ x=x (t+ Δ t)-x (t)
Wherein, Δ x is displacement, indicates any point from t moment to the displacement of t+ time Δt；
Assuming that be formed by the variation of line segment between each observation point is indicated with normal strain, the variation of each line segment angle is answered with cutting
Becoming indicates, investigates any one mini line segment in structural body, then opposite change of its normal strain, that is, length is,
Wherein, ε is normal strain, i.e. the opposite variation of length, and l is the initial length of certain line segment, and l ' is the line segment after deformation
Length；
Its shearing strain, that is, direction relative changes is,
γ=α-α '
Wherein, γ is shearing strain, is used to indicate that the amount of angle change, and α and α ' respectively indicate the intracorporal any line of structure
Section before being deformed after angle.
Between ten axle sensor chips data interaction can be carried out by LoRa wireless sensor network；
Ten axle sensor chips and management monitoring cloud platform, the monitor database server and remote monitoring center, institute
Stating remote monitoring center can be connect with mobile client by GPRS or wireless 3G/4G network or Beidou communication mode respectively.
Wherein ten axle sensors are composed of 3 three-axis gyroscopes and 1 pressure sensor, can be measurement height above sea level
And air pressure provides precision data, includes the components such as acceleration transducer, gyroscope, electronic compass, GPS receiver, except through
Outside the precision of device itself, correction after also relating to assemble welding, and the mating algorithm for different application.By a variety of
The fusion of data can correct orientation well, to realize high-precision motion detection.
Grid displacement test system based on ten axle sensors passes through the chip of ten axle sensors in insertion TGXG
Part carries out real-time monitoring to elements such as orientation, height, temperature, transfers data to management and prison using communication modes such as GPRS
Early warning cloud platform is surveyed, provides instant messaging services to prevent and reduce natural disasters, the life of the effective guarantee geological disaster prone areas people
Life and property safety.System is made of collection in worksite layer, wireless transmission communication layers, 3 part of early warning publishing center.Acquisition layer uses
Integration monitoring station equipment be whole system framework basis, for acquiring the real time data of each measuring point；Transport layer is communication
Equipment uploads the monitoring data of each measuring point on the basis of the monitoring center and monitoring data with user collect platform foundation and contact
With device status information and issue the instruction of user terminal；Application layer is to be connect by monitoring center and monitoring with tidal data recovering platform
It receives various regions monitoring station equipment and acquires the data come up, and be sent to the user for obtaining authorization identifying by network, make its operation existing
Field monitoring station equipment.
This system can Quick Acquisition, transmission, calculating, analysis, each monitoring point of storage monitoring data, including orientation, height,
Temperature etc., and correction process is carried out to data, it reduces error rates of data, improve data integrity rate, thus real-time monitoring geology calamity
Each dimension data in the multiple area of evil provides foundation for science and technology decision.
This system supports the communication modes such as GPRS/3G/4G/ Beidou, sensor node, terminal node and central node it
Between can be also in communication with each other by LoRa wireless sensor network, integrate various wireless communication mode, effective guarantee data transmission.
24 hours whole days monitor each dimensional parameter of geology automatically, automatic to carry out data analytical judgment, when detected value is more than early warning value, from
Dynamic sound-light alarm, SMS alarm, realization is unattended day and night to guard regional safety, greatly reduces administrative staff's working strength, mentions
Rise the efficiency of management.The decision judgment mechanism of science realizes monitoring index exception automatic alarm.Alarm mode built in system, analysis
Inducement, gives warning in advance or engineering control designs, and provides comprehensive and accurate data supporting, makes whether to structure volume morphing normally
Preliminary judgement and grading forewarning system, issue warning information in time, give full play to the value of early warning system.
Remote monitoring center can monitor automatically each dimensional parameter of TGXG in 24 hours, further analyze data
Judgement, and the difference of the warning grade reached according to monitor value, take the automatic alarm mode of appropriate level；
Remote monitoring center sends corresponding warning information according to the difference of warning grade to the mobile client；
Mobile client can send geology to remote monitoring center and monitor relevant information.
It needs to carry out user authentication when carrying out register with mobile client by the remote monitoring center or CA recognizes
Card；
Realize that the overall process of data processing is traceable, it is ensured that upload, modification and the deletion of each data can correspond to
Each remote monitoring center and mobile client.
Traditional geo-hazard early-warning includes geological hazard survey and evaluation (or survey Evaluation), observation (monitoring) system Construction
With operation, disaster trend analysis consultation, warning information propagate and appropriateness preparation react or 5 steps such as Preventing Countermeasures,
Accordingly include prediction (1~10a or more), forecast (January~1a), face many levels such as report (a few days) and alarm (a few hours)
The warning function (table 1) of a variety of precision.Prediction refers to that time precision is lower, and disaster concentrates the region occurred, fundamentals of forecasting emphatically
It is survey data；It forecasts, face report and the time precision of alarm is higher, it is necessary to there is system continuously to predict or monitoring data and be based on
The comprehensive analysis of correct regional geological environment analysis or geologic body deformation pattern.The lattice based on ten axle sensors in the application
Grid displacement test system is that the corresponding specification based on geo-hazard early-warning is designed.
The divided stages of 1 Warning Engineering System of table
Table 2 then illustrates the warning grade and colour code applied in the grid displacement test system based on ten axle sensors.Root
It is accordingly standardized according to geological disaster, using elements such as strain rate, displacements as graded index, different brackets corresponds to different threshold values.When pre-
When alert grade is conventional grade, it can determine whether only to send and alert to system O&M, colour code is green for general non-hazardous property；
It when warning grade is prediction stage, can determine whether general for harmfulness, only send and warn to system O&M and administrative staff
It accuses, colour code is indigo plant；When warning grade be early warning grade when, can determine whether for harmfulness it is heavier, by short message to the public send alert, color
It is designated as Huang；When warning grade be forecast grade when, can determine whether for harmfulness it is serious, by short message to the public suggest take prevention to arrange
It applies, colour code is orange；When warning grade is alarm grade, can determine whether as harmfulness especially severe, by short message and sound-light alarm to
The public sends warning, and colour code is red.
2 warning grade of table and colour code
| Rank | Meaning | Colour code | Explanation |
| Ⅴ | Alarm grade may endanger especially severe | It is red | Organize public's emergency response |
| Ⅳ | It forecasts grade, may endanger serious | Orange | It is recommended that the public takes preventive measures |
| Ⅲ | Early warning grade may endanger heavier | It is yellow | Issue public awareness |
| Ⅱ | Prediction stage may endanger general | It is blue | Science and technology is grasped with administrative staff |
| Ⅰ | Conventional grade, it is general non-hazardous | It is green | Scientific and technical personnel grasp |
The application is the grid displacement test system based on ten axle sensors for integrating protection and monitoring, passes through geotechnique
Grid realizes protection purpose, realizes monitoring purpose by ten axle sensors.As long as the engineering of TGXG can be used, it is ok
General grille is replaced with the TGXG embedded with ten axle sensor chips.
Embodiment 2
The application method of grid displacement test system based on ten axle sensors, comprises the following steps that
Ten axle sensor chips acquire monitoring point acceleration, angle, angular speed, magnetic field, height above sea level, air pressure and geographical coordinate
Data information, and the data information is uploaded into management monitoring cloud platform；
The data information that management monitoring cloud platform is acquired according to ten axle sensor chips obtains monitoring point by comprehensive analysis
Geogrid deformation amount and displacement variation, and to data information carry out correction process, reduce error rates of data, improve data
Percentage of head rice；
The data information and analysis result synchronized update that management monitoring cloud platform acquires ten axle sensor chips extremely monitor
Database server；
Remote monitoring center extracts the data in monitor database server, obtains TGXG after being further processed
Overall structure generates the width in crack and its trend of extension, and carries out real-time monitoring to the destruction trend of TGXG entirety,
To take corresponding safeguard procedures in advance, the final automatic monitoring for realizing TGXG integrality and geological disaster are pre-
It is alert；
When geological disaster occurs, according to the difference of disaster alarm grade, remote monitoring center is sent to mobile client
Corresponding warning information.
Further include that steps are as follows:
When construction, after the completion of each layer is laid with embedded with the TGXG of ten axle sensor chips, is debugged, observed immediately
Data are larger with the presence or absence of error, to carry out sensitivity debugging to ten axle sensor chips in TGXG in time；
After the completion of TGXG is all laid with, Initialize installation is carried out；
Based on the grid displacement test system of ten axle sensors at the initial stage of applying, the geotechnique of ten axle sensor chips would be embedded with
Grid is laid with extensively, and by the way of comprehensive monitoring comprehensive monitoring geological disaster complete structure body deformation；
Using the information of acquisition process by after the completion of monitoring and warning Database, by the way of fixed point monitoring, pass through
The analytical judgment of monitoring and warning database, emphasis monitor the deformation at easily-deformable place.
The foregoing is merely preferred embodiment of the present disclosure, are not limited to the disclosure, for the skill of this field
For art personnel, the disclosure can have various modifications and variations.It is all within the spirit and principle of the disclosure, it is made any to repair
Change, equivalent replacement, improvement etc., should be included within the protection scope of the disclosure.
Claims (10)
1. the grid displacement test system based on ten axle sensors, characterized in that include: ten axle sensor chips, TGXG,
Management monitoring cloud platform, monitor database server, remote monitoring center and mobile client；
Ten axle sensor chips are embedded in TGXG；
Ten axle sensor chips acquire the data of monitoring point acceleration, angle, angular speed, magnetic field, height above sea level, air pressure and geographical coordinate
Information, and the data information is uploaded into management monitoring cloud platform；
The data information that management monitoring cloud platform is acquired according to ten axle sensor chips obtains the soil of monitoring point by comprehensive analysis
The variation of work grid deflection and displacement, and correction process is carried out to data information, it is complete to reduce error rates of data, raising data
Rate；
The data information and analyze result synchronized update to monitoring data that management monitoring cloud platform acquires ten axle sensor chips
Library server；
Remote monitoring center extracts the data in monitor database server, and TGXG entirety is obtained after being further processed
Structure generates the width in crack and its trend of extension, and carries out real-time monitoring to the destruction trend of TGXG entirety, so as to
Corresponding safeguard procedures are taken in advance, the final automatic monitoring and geo-hazard early-warning for realizing TGXG integrality；
The remote monitoring center and mobile client are carried out data transmission by wireless network.
2. as described in claim 1 based on the grid displacement test system of ten axle sensors, characterized in that
The TGXG includes upper rib and lower rib；
There must be side's connecting side to be equipped with groove in the upper rib or lower rib；
The ten axle sensors chip is externally provided with one layer of insulating protective layer, and the ten axle sensors chip passes through binder and insulation
Protective layer closely connects, and ten axle sensor is embedded in the groove by binder；
The upper rib is welded with lower rib by ultrasonic seamless gap.
3. as described in claim 1 based on the grid displacement test system of ten axle sensors, characterized in that
The TGXG includes common TGXG and two kinds of TGXG embedded with ten axle sensor chips；
Two kinds of TGXG are laid with by way of intersecting and combining, common geotechnique is laid with for comparatively safe region
Grid, for needing the region of monitoring to be emphatically laid with the TGXG embedded with ten axle sensor chips；
It can be carried out by erection method between the common TGXG and TGXG embedded with ten axle sensor chips
Connection.
4. as described in claim 1 based on the TGXG displacement test system of ten axle sensors, characterized in that
This period is obtained by the change in displacement analysis of the ten axle sensor chips acquired to former and later two different moments
Ten axle sensor chip of insertion TGXG change in displacement, further by analysis obtain the three-dimensional of geogrids layer
Deformation；
If the orientation that the displacement of ten axle sensor chips is always zero or ten axle sensor chips does not change always, illustrate
The TGXG for being embedded in ten axle sensor chips does not deform or change in displacement；
If the displacement of ten axle sensor chips changes or the orientation of ten axle sensor chips changes, illustrate insertion ten
Axle sensor chip deforms or change in displacement, and timely emphasis is answered to observe the data of the ten axle sensors chip position,
The deformation of the TGXG of ten axle sensor chip positions is analyzed, convenient for taking corresponding safeguard procedures in due course.
5. as described in claim 1 based on the grid displacement test system of ten axle sensors, characterized in that from t moment to t+
The change in displacement of ten axle sensor chips of time Δt acquisition,
Δ x=x (t+ Δ t)-x (t)
Wherein, Δ x is displacement, indicates any point from t moment to the displacement of t+ time Δt；
Assuming that the variation of line segment is formed by between each observation point to be indicated with normal strain, the variation shearing strain table of each line segment angle
To show, investigates any one mini line segment in structural body, then opposite change of its normal strain, that is, length is,
Wherein, ε is normal strain, i.e. the opposite variation of length, and l is the initial length of certain line segment, and l ' is the length of the line segment after deformation
Degree；
Its shearing strain, that is, direction relative changes is,
γ=α-α '
Wherein, γ is shearing strain, is used to indicate that the amount of angle change, and α and α ' respectively indicate the intracorporal any line segment of structure and exist
Deform the angle of front and back.
6. as described in claim 1 based on the grid displacement test system of ten axle sensors, characterized in that
Between the ten axle sensors chip data interaction can be carried out by LoRa wireless sensor network；
The ten axle sensors chip and management monitoring cloud platform, the monitor database server and remote monitoring center, institute
Stating remote monitoring center can be connect with mobile client by GPRS or wireless 3G/4G network or Beidou communication mode respectively.
7. as described in claim 1 based on the grid displacement test system of ten axle sensors, characterized in that
The remote monitoring center can monitor automatically each dimensional parameter of TGXG in 24 hours, further analyze data
Judgement, and the difference of the warning grade reached according to monitor value, take the automatic alarm mode of appropriate level；
The remote monitoring center sends corresponding warning information according to the difference of warning grade to the mobile client；
The mobile client can send geology to remote monitoring center and monitor relevant information.
8. as claimed in claim 7 based on the grid displacement test system of ten axle sensors, characterized in that
It needs to carry out user authentication or ca authentication when carrying out register by the remote monitoring center and mobile client；
Realize that the overall process of data processing is traceable, it is ensured that upload, modification and the deletion of each data can correspond to each
A remote monitoring center and mobile client.
9. the application method of the grid displacement test system based on ten axle sensors, characterized in that comprise the following steps that
Ten axle sensor chips acquire the data of monitoring point acceleration, angle, angular speed, magnetic field, height above sea level, air pressure and geographical coordinate
Information, and the data information is uploaded into management monitoring cloud platform；
The data information that management monitoring cloud platform is acquired according to ten axle sensor chips obtains the soil of monitoring point by comprehensive analysis
The variation of work grid deflection and displacement, and correction process is carried out to data information, it is complete to reduce error rates of data, raising data
Rate；
The data information and analyze result synchronized update to monitoring data that management monitoring cloud platform acquires ten axle sensor chips
Library server；
Remote monitoring center extracts the data in monitor database server, and TGXG entirety is obtained after being further processed
Structure generates the width in crack and its trend of extension, and carries out real-time monitoring to the destruction trend of TGXG entirety, so as to
Corresponding safeguard procedures are taken in advance, the final automatic monitoring and geo-hazard early-warning for realizing TGXG integrality；
When geological disaster occurs, according to the difference of disaster alarm grade, remote monitoring center sends corresponding to mobile client
Warning information.
10. the application method of the grid displacement test system based on ten axle sensors as claimed in claim 9, characterized in that
Further include that steps are as follows:
When construction, after the completion of each layer is laid with embedded with the TGXG of ten axle sensor chips, is debugged immediately, observe data
It is larger with the presence or absence of error, to carry out sensitivity debugging to ten axle sensor chips in TGXG in time；
After the completion of TGXG is all laid with, Initialize installation is carried out；
It is described based on the grid displacement test system of ten axle sensors apply initial stage, would be embedded with the geotechnique of ten axle sensor chips
Grid is laid with extensively, and by the way of comprehensive monitoring comprehensive monitoring geological disaster complete structure body deformation；
Using the information of acquisition process by after the completion of monitoring and warning Database, by the way of fixed point monitoring, pass through monitoring
The analytical judgment of warning data storehouse, emphasis monitor the deformation at easily-deformable place.
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