CN107526118A - Quick detection collapses the system and method for hole - Google Patents
Quick detection collapses the system and method for hole Download PDFInfo
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- CN107526118A CN107526118A CN201710466759.2A CN201710466759A CN107526118A CN 107526118 A CN107526118 A CN 107526118A CN 201710466759 A CN201710466759 A CN 201710466759A CN 107526118 A CN107526118 A CN 107526118A
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- label
- road surface
- embedded
- hole
- antenna
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
Abstract
The application is related to the system and method that a kind of quick detection collapses hole, and wherein label is embedded on the soil under road surface, to identify label, and the change of tag state is inspected periodically on road surface, so as to quickly and precisely detect underground hole.The system and method that quick detection collapses hole can be with relatively low initial construction cost, underground hole is semi-permanently detected under target road surface, it can be operated due to easily measuring with interpretation process under without professional manpower, and for repeatedly measuring almost without generation extra cost.
Description
Technical field
The present invention relates to the system and method that a kind of quick detection collapses hole.It is more particularly it relates to a kind of fast
Speed detection collapses the system and method for hole, and wherein label is embedded on the stratum under road surface, to identify label, and
The change of tag state is inspected periodically on road surface, so as to quickly and precisely detect underground hole.
Background technology
When by a specific reasons and in road underground hole formed below, and when reason persistently occurs, underground hole because
It is lost in for extra stratum and becomes big and upward expansion with avalanche.Due to underground hole, stratum can not support and be applied to link table
The wheel load in face.Therefore, road surface is damaged by structure.If continuing such wheel load, road surface will finally be broken
It is bad, cause road to sink.Unless produce big underground hole suddenly, otherwise the starting stage from underground hole sunk to road
Need for quite a long time.Therefore, if such underground hole can be detected using specific technology, can adopt in advance
Suitable measure is taken to be sunk to prevent road.It is here, insufficient due to subway work place or extensive tunnel construction site
Construction management, and predominately form large-scale underground hole.In this case, if bed course collapse it is almost simultaneously big
Scale collapses with top (roof's), even if road surface there is certain rigidity also the weight of itself or wheel can not be supported to bear
Lotus.One typical example is that the road occurred in the construction site of Jinsen Line 2 Metro in 2012 sink.
In addition to the ceiling of extensive tunnel construction site collapses, there is several factors that may facilitate square under road surface
Into underground hole.Due to these factors, the formation particles of roadbed/ground of the position under road surface rearrange, and cause the one of road surface
Part can not have bearing capacity.If the movement of formation particles is lost in stratum under road surface can pass through particular measurement system
To sense, then the region in formed underground hole can be detected in advance.However, known sense is buried generally under road surface
Utensil has the shortcomings that sensor cost and high management cost.Commonly known sensor, from traditional sensor, such as displacement
(displacement meters) is counted with ground pressure meter (earth pressure meters) to new technology sensor, such as
MEMS, optical fiber and temperature sensor, it is expensive.Further, since such sensor must be connected by electrical wiring to measurement
Instrument, it is not easy densely these sensors of I＆M under road surface.Therefore, the situation under non-destructive estimation road surface
Technology arouse attention, and its typical example is GPR (penetrating antenna).In the U.S. and Europe, complete application 3D GPR
Technology, and in Japan, have special company that there is the vehicle mounting apparatus for being used for detecting underground hole.However, GPR is measured
The problem of expensive and data interpretation process with measurement equipment needs special knowledge.
The content of the invention
It is an aspect of the present invention to provide the system and method that a kind of quick detection collapses hole, wherein label is buried
On the stratum under road surface, to identify label, and inspect periodically on road surface the change of tag state, so as to quick and
Accurate detection underground hole.
Another aspect of the present invention is to provide the system and method that a kind of quick detection collapses hole, wherein can with compared with
Low initial construction cost, a underground hole is semi-permanently detected under target road surface, and due to easy measurement and interpretation
Process can operate under without professional manpower.
According to an aspect of the present invention, a kind of quick detection collapses the system of hole and included：One label, it is embedded in paving
On the stratum under road surface；One sensing unit, identify the label；One measurement unit, based on the letter identified by the sensing unit
Breath measures one and collapses hole；One supply unit, the mobile sensing unit and the measurement unit on road surface；And a server,
The positional information of the label is provided to the measurement unit, wherein the measurement unit from the server receive the sensing unit without
The positional information of the label of method identification, and the territorial classification for the None- identified label being embedded with is collapsed into a suspicious survey
Fall into perforated.
Preferably, the sensing unit includes an antenna and a reading machine, and the wireless data for starting with the label leads to
Letter；The label has a unique tag ID；And server admin positional information corresponding with the tag ID, and should
Information is provided to the measurement unit.
Preferably, the label includes multiple labels, and the multiple label is embedded under road surface in a grid formation.
Preferably, each of the label is a passive label and has the antenna for communicating, and one deposits
Reservoir, in bar shaped housing memory storage tag ID, and the housing is waterproof.
Preferably, the housing of the mark has 50mm to 100mm length.
Preferably, the road surface is pitch or concrete road surface, and the label is embedded in the bottom for supporting the road surface
With the boundary of a ground or ground top between upper.
Preferably, the road surface is pitch or concrete road surface, and the label is embedded in depth in 55cm to 65cm's
At below the road surface.
Preferably, the antenna of the sensing unit has adjustable height.
Preferably, the antenna of the sensing unit has adjustable output.
Preferably, the antenna of the sensing unit includes at least two antennas, is arranged on the diverse location of the supply unit
Place, and those antennas are set as difference in height or output.
Preferably, the reading machine provides a RSSI value of the amplitude for the signal that instruction returns, and the measurement from the label
Compared with the RSSI value that unit measures the RSSI value when label is embedded, to detect the change of the state of the label and situation,
To check stratum deformation.
Preferably, the label is configured to a label complex, and the label complex includes：One magnetic, is fixed to this
One upper surface of label；One shell, it is configured to receive the label and the magnetic；And a reflecting plate, it is fixed to the shell
One bottom of the interior label, and radio wave is reflected, and wherein the sensing unit includes a magnetometer, senses the magnetic
The magnetic force of body or measure the magnetic magnetic force size.
According to another aspect of the present invention, there is provided a kind of method that quick detection collapses hole, wherein a label is buried
Under road surface and the identification of the label is inspected periodically, whether a underground hole is produced under road surface with detection.
Preferably, this method includes：(a) label is buried under the road surface；(b) obtain institute embedded label position believe
Cease and the information and a tag ID are collectively stored in a server；(c) movement is provided with a sensing unit on road surface
One supply unit is to be measured；(d) by a measurement unit, judge whether the label is equipped with an antenna and one and reads
The sensing unit of machine is identified；(e) from when self-identifying goes out the label, by the tag ID of the label identified from the clothes
Business device receives the positional information of the label, and the region for being embedded with the label identified is depicted as into a nothing and collapses hole
Region；And (f) is received when the label None- identified by the tag ID of the label of the None- identified from the server
The positional information of the label, and the region for the label for being embedded with the None- identified is depicted as a region for collapsing hole.
Preferably, this method further comprises：After step (f), (g) resets the height of the antenna of the sensing unit
Degree is exported to be measured again；(h) when identifying the label by the detection unit, the label that is identified by this
The tag ID positional information of the label is received from the server, and the region that will be embedded with the identification outgoing label is drawn
The region for collapsing hole tendency into one；And (i) passes through the mark of the label of the None- identified when the label None- identified
Label ID receives the positional information of the label from the server, and the region for the label for being embedded with the None- identified is depicted as
One collapses the region of hole.
Preferably, in step (a), the label includes multiple labels, and the multiple label is buried in a grid formation
Under road surface.
Preferably, the label is a passive label and has the antenna for communicating, and a memory, is used for
In bar shaped housing memory storage tag ID, and the housing is waterproof.
Preferably, the housing of the label has 50mm to 100mm length.
Preferably, the road surface is pitch or concrete road surface, and the label is embedded in the bottom for supporting the road surface
With the boundary of a ground or ground top between upper.
Preferably, the road surface is pitch or concrete road surface, and the label is embedded in depth in 55cm to 65cm's
Below the road surface.
Preferably, the antenna of the sensing unit has adjustable height.
Preferably, the antenna of the sensing unit has adjustable output.
Preferably, the antenna of the sensing unit includes at least two antennas, is arranged on the diverse location of the supply unit
Place, and those antennas are set as difference in height or output.
Preferably, the reading machine provides a RSSI value of the amplitude for the signal that instruction returns, and the measurement from the label
Compared with the RSSI value that unit measures the RSSI value when label is embedded, to detect the change of the state of the label and situation,
To check stratum deformation.
Preferably, a label complex is configured to by the embedded label in step (a), the label complex bag
Include：One magnetic, it is fixed to a upper surface of the label；One shell, it is configured to receive the label and the magnetic；And
One reflecting plate, a bottom of the label being fixed in the shell, and radio wave is reflected, and the biography in step (d)
Sense unit includes a magnetometer, senses the magnetic force of the magnetic, and this method further comprises determining whether by the magnetic force
Meter senses the magnetic.
Preferably, a label complex is configured to by the embedded label in step (a), the label complex bag
Include：One magnetic, it is fixed to a upper surface of the label；One shell, it is configured to receive the label and the magnetic；And one
Reflecting plate, a bottom of the label being fixed in the shell, and radio wave is reflected, and the sensing in step (d)
Unit includes a magnetometer, senses the magnetic force of the magnetic, and this method further comprises：In step (d), it will be buried
If an initial magnetic force value and the tag ID of the magnetic be collectively stored in the server；And it will pass through in step (d)
One magnetic force value of the magnetometer measures is compared with the initial magnetic force value.
Brief description of the drawings
Following examples, above and other aspect of the invention are referred to reference to accompanying drawing, feature and advantage will become apparent easily
Understand：
Fig. 1 is the view for the system that hole is collapsed according to the quick detection of the present invention；
Fig. 2 is the schematic diagram for illustrating RFID tag technology；
Fig. 3 is the view of the passive U HF labels of typical commercial；
Fig. 4 is used in quick detection and collapses label in the system of hole by the view of embedded example；
Fig. 5 is the profile for illustrating the road surface of the depth of burying of label in the system that quick detection collapses hole；
Fig. 6 is the schematic diagram for illustrating the development in underground hole under road surface；
Fig. 7 is the form view for illustrating the label according to the present invention；
Fig. 8 is the view that label is embedded in different depth, for the communicativeness for the depth assessment label buried according to label
Energy；
Fig. 9 is the diagram by the process of the communication performance of Pavement Evaluation label；
Figure 10 is the diagram that the open cut that label is embedded in for laying sewage pipe is covered to the example in construction area；
Figure 11 is the view of the cart type measurement unit made for test；
Figure 12 is the view according to the screen of the measurement unit of the present invention；
Figure 13 is will to include the numerical map in measurement unit by the position of embedded label and communications status according to the present invention
The view of (numerical map)；
Figure 14 is the behaviour for being used for detection technique using navigation and augmented reality technology in the amount side unit according to the present invention
Make the view of the example of program；
Figure 15 is the flow chart for the method that hole is collapsed according to the quick detection of the present invention；
Figure 16 is the view of label complex according to another embodiment of the present invention；And
Figure 17 is the view for showing the result sensed by the magnetic force of label complex.
Wherein, description of reference numerals is as follows：
10 marks
20 magnetics
30 marker complex
31 shells
32 supporting parts
33 reflecting plates
30 delivery units
40 sensing units
41 antennas
42 reading machines
43 magnetometers
60 measuring units
70 servers
Embodiment
Hereinafter, it will be described with reference to the accompanying drawings the exemplary embodiment of the application.It should be noted that entirely illustrating
In book and accompanying drawing, identical part will be indicated by the same numbers.In addition, for the sake of clarity, it will omit for ability
Obvious detailed description for field technique personnel.
Fig. 1 is the view for the system that hole is collapsed according to the quick detection of the present invention.
The system of hole is collapsed according to the quick detection of the present invention may include：Multiple labels 10, it is embedded to be laid under road surface
Stratum on；One sensing unit 40, identify these labels 10 on stratum；One measurement unit 60, based on being identified by sensing unit
Infomation detection one collapse hole；One supply unit 30, mobile sensing unit 40 and measurement unit 60 on road surface；And one
Server 70, there is provided the positional information of these labels to measurement unit 60, wherein sensing unit 40 may include an antenna 41 and one
Reading machine 43 is used to start the RFDC with these labels 10.
The system of hole is collapsed according to the quick detection of the present invention can use REID (RFID) label technique,
It is non-contact object identification technology.
Fig. 2 is the schematic diagram for illustrating RFID tag technology.
As shown in Fig. 2 due to performing RFDC between these labels and the antenna of reading machine, one is used
RFID label tag collapses hole sensor ratio as one be embedded under road surface and uses existing sensor more favourable.These RFID
Label is divided into active, semi-active type and passive type is depended on either with or without tag battery.These passive labels are with regard to communication distance
For with other forms be relatively imperfect, but these passive labels can be semi-permanently used, because need not electricity
Pond.Further, since these passive labels are cheap, these passive labels are suitable as one and collapse hole sensor, because
This can densely be buried at a specific intervals under road surface.
The technology basic conception that hole is collapsed for being detected using RFID technique is as follows：Before collapsing hole and occurring, on road
The label buried under face with certain depth can communicate with the portable antenna on road surface, and send label information to reading machine.When
When collapsing hole under road surface, label can be moved to label from its home position can not be with the antenna communication on road surface
Position.Therefore, the state of the RFID label tag of underground is embedded in by regular monitoring, can rapidly judge that collapsing hole is
It is no to have been formed under road surface, and whether because collapsing hole formation underground hole.
The system that hole is collapsed according to the quick detection of the present invention is configured to solve following technical problem.Firstly, it is necessary to
It is suitable for these passive type RFID label tags 10 that detection collapses hole.Because these labels 10 are embedded under road surface, take an examination
The medium for considering radio propagation is road surface, rather than air.It that case, it is ensured that certain communication distance.
Because these labels 10 are embedded on stratum, the firm housing of these labeling requirements.In addition, in order to specific
Interval densely bury these labels, the unit prices of these labels 10 has to low.Further, in order to the shifting on road surface
The dynamic reading machine 42 of antenna 41/ communicates, and these labels 10 must be high responsiveness.Second, sensing unit 40 should be able to be rapidly
Communicated with these labels 10 being embedded under road surface.Where hole is collapsed due to that can not know for sure, these labels 10 must
Target area must be densely embedded in a grid formation.These are discontinuously checked in the position for confirming these labels 10 simultaneously
The state of label 10 is very inefficent, because this may disturb the magnitude of traffic flow and take very much.It is therefore preferable that
Be continuously to monitor the states of these labels 10 while vehicle of the driving provided with the reading machine 42 of antenna 41/, form sensing
Unit 40.When sensing unit is arranged on vehicle, it is necessary to based on the operation sequence of navigation system to notify the position of these labels 10
Put or the result of communication with these labels 10 is immediately shown on screen.3rd, it is necessary to logical to monitor using these labels 10
Believe intensity.Substantially, in the present invention, by determining whether communicate to judge to be under road surface with these embedded labels 10
The no hole that collapses is possible.When label movement exceedes certain distance, the communication disruption with label.This means
Through offset there occurs stratum more than certain scale/collapse hole.In order to quickly take action, it is desirable to know where may be used in advance
Hole can be collapsed.If its information can be obtained, this will be highly beneficial for monitoring the state on stratum.When reading machine 42
Antenna 41 communicated with label 10, the amplitude of signal returned from label passes through received signal volume indicator (RSSI)
To indicate.When the change of the medium state between antenna 41 and label 10, RSSI value changes.Due to road surface substantially not
Infiltration, the state on road surface, such as water content has almost no change, unless damage of the rainwater due to road surface, for example, kettle hole and
Infiltrate into road surface.Therefore, the change of RSSI value means embedded label 10 and changed in state and situation, for example,
Shifted due to the deformation of surrounding formation.In order that RSSI value is significant, it is necessary to provides the RSSI value changed due to formation conditions
The normal data of change.If the system according to the present invention is applied in industry, and accumulates RSSI value in certain circumstances
Data, RSSI value can be judged to be read as more meaningful information.
Although the system according to the present invention is substantially intended to judge whether collapse hole under road surface, based on burying
Whether these labels 10 being located under road surface identified by the sensing unit 40 on stratum, the system can also check for
Small stratum deformation, as the RSSI value of signal that will be returned as these labels 10 with when being embedded to these labels measured by
RSSI value compare, to detect the state change of these labels.
Here, label 10 is preferably a passive label, is supplied by the radio wave received by the antenna of label
Electricity.
These RFID label tags are divided into LF, MF, HF, VHF and UHF label depending on frequency band, and are based on and antenna communication
Method these RFID label tags are divided into sensor label (inductive tags) and radiation signatures (radiative tags).
These sensor labels are mainly used for short haul connection, and these radiation signatures are to be used for middle long-range distance communication.With long logical
Communication distance and these passive type RFID label tags of low cost operate in UHF frequency band.It is according to what the detection of the present invention collapsed hole
System, because these labels are embedded not deep enough, it is contemplated that use feeling answers LF labels.However, such sensing LF labels just respond speed
It is not appropriate for for degree, and preferably radiation signatures.
Fig. 3 shows the passive U HF labels of typical commercial.
Generally, these UHF labels are with a stripe shape and with the different communication distances depending on its length.In order to drop
The length of the bar shaped label of low given antenna length, antenna must be folded with sawtooth form, as shown in Figure 3.Such folding
Antenna has relatively short communication distance compared to Straight Wire Antenna.
Shorter label is advantageous, because even small-scale stratum deformation occurs, shorter label can be more easily
With ambient stratum displacement.In addition, when a desired depth is embedded in during pavement construction, because uneven ambient pressure may
Damage long label, it is preferable to use short and strong label.Therefore, the label for hole being collapsed for detecting is preferably a UHF
Passive label, it consists essentially of a strong housing, is waterproof, and the communication when being embedded in stratum with abundance
Distance.
Such passive label does not need single battery, and therefore can be semi-permanently used when being embedded in stratum.
Especially, because the price of passive label is very low, construction label networking is possible without causing huge cost under road surface
's.As an example it is assumed that the passive label of road construction period two or three rows are arranged under a road, assessing needs per public
The extra construction cost of million won of mileage.
Label 10 has unique tag ID, and the positional information of each tag ID is managed by server 70.
Fig. 4 shows that these labels 10 are embedded in the example under the road of laying.With reference to figure 4 (a), these labels 10 can
It is embedded in a grid formation under the road of laying.Hole (see Fig. 4 (b)) is collapsed at the A points under pavement of road, from
And lose these labels 10 for being embedded in A points.The system according to the present invention can be examined by sensing the change in location of these labels
Survey collapses hole.
In order to install these labels 10 under existing road, it is necessary to pull down road surface one section, and in these label quilts
After installation, road surface needs to construct again.Therefore, when the construction road surface in new road segment segment, when road surface is covered all with open cut
When construction of railways part in city is rebuild, when recovering road surface in changing part in water and sewage pipe etc., installing these labels 10 is
Effectively.In addition, these labels 10 being embedded in by monitoring in advance under pavement, the region excavated on a large scale
Near, it can prevent because excacation causes the stratum for collapsing hole to be lost in.
Here, judge that the embedded depth of these labels is very important factor in the present invention.Generally, a UHF frequency band
The communication distance of passive label is about 12m.This is that medium is air and situation about being hindered without centre.In this hair
In bright, because these labels 10 are embedded in stratum, radio wave is propagated by road surface.Road surface is typically split into concrete road surface
Or bituminous paving.Most urban road are bituminous paving, and it has pitch, intermediate layer (intermediate course), bottom
Layer (base course), basic unit (subbase course), ground (subgrade), the structure of roadbed (roadbed) composition,
As shown in Figure 5.In addition, in Pavement Design, each layer of type and the thickness of pavement structure may depend on the property of road with
The permission size of wheel load and slightly change.
When because a specific reasons are in road underground hole formed below, and when reason persistently occurs, underground hole becomes
Greatly.The generation in underground hole passes through various such environmental effects with the increment rate of underground hole size.In other words, such process
Depending on various situations can be carried out rapidly, or sustainable many decades are slowly carried out.Pitch or concrete, surface layer is formed, and
Bottom has suitable intensity, and therefore, after being sunk by ground and roadbed, the wheel that can bear to be applied to road surface is born
Lotus is for a period of time.When wheel load is constantly applied to road surface and forms crack in surface layer, or local lower hole water
When level land becomes big, the surface layer can no longer support wheel load and be destroyed, and cause road to sink.Generally, bituminous paving has
The structure of the bottom thick 20cm surface layer thick with 10cm is laid in the thick basic units of 30cm in order.It is understood, however, that be,
The structure of bituminous paving may depend on the property of road and the permission size of wheel load and change.In fact, bottom and surface layer
Coarse material is consolidated by the pitch with high viscosity, and basic unit passes through cement mortar (cement paste) and compacting
(compacting) it is stable.Therefore, there is higher than the particle in ground and roadbed stick in the particle of surface layer, bottom, basic unit
The property.On the contrary, ground is made up of with roadbed clean formation material, it is used to providing the additive of tackness between particle, because
This due to gravity and may be collapsed and offset by particle, and it can be reduced between particle by the increase due to water content
Tackness and be accelerated.In addition, when forming water channel on stratum, loose particle moves along water channel.As shown in fig. 6,
Due to it is lasting collapse, particle is lost in etc., underground hole caused by the certain depth upwardly extends, and is then reaching
Flatly expanded during the high basic unit of tackness between grain.
The process being sunk from the formation in underground hole to road is contemplated, these ideals of label 10 according to the present invention are
Between being installed at the top of basic unit and ground or ground above.Therefore, these labels 10 are embedded under road surface 55cm to 65cm's
Depth, it is therefore preferable at depth 60cm, be contemplated in the case where medium is pavement structure, these labels 10 must have
55cm to 65cm, it is therefore preferable to 60cm communication distance.
One 900MHz RFID label tags are relatively cheap and with up to 10 meters of communication distances, and work as and be embedded in necessarily
It can be communicated during the stratum of depth with the reading machine on stratum.By model measurement, when from the surface on road surface be embedded in 10cm to
During 50cm depth, it can be seen that 900MHz RFID label tags can be identified on stratum.Preferably, the label is by embedded underground
In about 30cm.In such cases, it can confirm that the label can be detected by reading machine on stratum at 50cm height.
These labels 10 are preferably embedded in identical depth.900MHz (UHF frequency band) labels can be used as these labels.
LF (low frequency) or HF (high-frequency) label can be used depending on site attribute.
There are the UHF RFID label tags of several types.There, preparation can be embedded in the exemplar of underground.These
Sample includes its surface of strip shaped metals label with waterproof coating, a square label with rubber processing etc..Fig. 7 shows
Show using the stripe shape UHF metal labels prepared in following Communication Performance Evaluation.Tested to assess these label samples
This communication performance, and summarize result in table 1.Tested specifically, changing, the distance between exemplar and reading machine is same
When, investigate whether these exemplars can communicate with reading machine in atmosphere.In addition, set in concrete barrier thick 30cm
In the case of therebetween, investigate whether these exemplars can communicate with reading machine.Herein, concrete barrier thick 30cm
The surface layer on corresponding road surface, as a medium.Reading machine is used as using hand-held reading machine AT880.It can confirm that whole these
The distance that exemplar can be up to 10m in atmosphere communicates with reading machine, and can also be provided with 30cm thickness therebetween
Concrete barrier communicates with reading machine.
Table 1
Two label models, it can be communicated by the thick concrete barriers of 30cm with reading machine, be embedded in stratum to comment
Estimate communication performance.As a result it is shown in table 2.
Table 2
Square label is excluded, because the sticker price is too expensive, and also excludes the strip shaped metals mark with 148mm length
Label, because the label is oversize thus unrealistic.As shown in figure 8, other exemplars are embedded in 10cm perpendicular separations
10cm to 70cm depth, then check what whether these exemplars can recognize that.As a result, can confirm that it is that length is 48mm
Bar shaped label there is up to 40cm communication distance, and the bar shaped label that length is 95mm has up to 60cm communication
Distance.Propagation of the water on radio wave, which is contemplated, obvious influence, after the water content in increasing stratum, with above-mentioned identical
Method reappraises these exemplar communication performances.As a result it is shown in table 3.
Table 3
When the water content in stratum is 10%, the result shown by table 2 is obtained, and when the water content increase in stratum
To 16%, the result shown by table 3 is obtained.From the above, it can be seen that when water content increase to a certain extent when, these
The communication performance of label is even without impacted.If the water content in stratum increases in large quantities, this can influence these labels
Communication performance.However, because the surface layer on actual road surface is fluid-tight, only surface layer damage (for example, having crack),
Due to the infiltration of rainwater, water content will not significantly change.Therefore, if can be with these label communications when starting, then it is assumed that
It will not be changed in addition to collapsing hole with these label communications by environment and interrupted.
Finally.As shown in figure 9, these labels are embedded in the test site of different depth, wherein construction has and actual road
The mutually isostructural road surface in face, then assess the communication performance of these labels.As a result it is shown in table 4.
Table 4
When being embedded under hard asphalt-concrete pavement, these labels are not as can be than being only embedded in as being expected
Become longer with shorter communication distance, the communication distance of actually these labels when under road surface.This is seemingly because there is base
Layer, bottom, surface layer structure road surface model water content it is also lower than the road surface model being only made up of stratum, so these labels
Communication performance be less subject to the influence of water.
Tested by communication performance, it can be seen that the UHF metal labels with length about 50mm to 100mm properly make
Cavity detection system is collapsed on the basis of the RFID according to the present invention.
The system according to the present invention, these labels 10 are embedded in certain depth, and amount of movement is used on road surface
Survey unit regular monitoring whether there is and these label communications.When the ground layer due to specific reasons under road surface sink, these are buried
If label 10 can be brought away from communication range.Even if when ground layer sink, because surface layer structure Shangdi supports road surface, suitable
Long a period of time do not occur road sink when.In this stage, it can rapidly be identified and buried by using measurement equipment
If these disconnect labels region, to confirm the presence in underground hole, so as to prevent road surface from sinking.
Assuming that make the UHF metal labels of 100 units confirms the suitable mark for being used as the system according to the present invention by testing
Label, the price of each label are expected to be 5,000 won to 8,000 won.The unit price of label is sentenced according to lot-size
It is fixed, and think further to decline with the development unit price of following manufacturing technology.If having made 100,000 label, make
It can be reduced to less than 1,000 won with prior art cost per tag.In road sink, analysis pipeline is embedded under road surface
Part or perform the part of open cut covering work and road continually occurs sink.So open cut covers work substantially in pipe
Line construction site or tube and subway work scene perform.When the space of the good stratum backfill underground structure of use quality
When, possibly it can not realize sufficient compacting.Therefore, the border between prime stratum and open cut covering part forms water channel,
Post laminar flow loses, and it causes the formation in underground hole and collapses hole.In large-scale construction area, for example, tube or
Subway work region, the scale that stratum is lost in are also big than in small pipeline installation region.Hole is being collapsed based on RFID
Detecting system in, after work is covered in the open cut to pipeline installation, in construction during road surface, these labels are embedded in base
The depth of 55cm to 65cm between layer and ground.Substantially, these labels can be embedded in 1m intervals.It is construed as
Space according to budget with importance these labels is adjustable.
Be embedded in width number of labels may depend on open cut covering construction part width and embedded pipeline it is big
It is small and change.Figure 10 shows that the open cut that these labels are embedded in for laying sewage pipe covers the example of construction part.Assuming that
These labels along sewage pipe laying part with 1m interval by embedded two rows, when sticker price is ordered as 1, at 000 won, often
Kilometer label cost needs 2,000,000 won.It is low that the extra construction cost associated with label installation is contemplated, this hair
The building foundation facility of bright system is investment highly for solving the problems, such as the hole that collapses in city.Covered in open cut
The tube of lid and subway work region, these labels can be buried at regular intervals according to importance.Especially, have very
Border of the high possibility between prime stratum and open cut covering part forms water channel, causes the formation in underground hole.Cause
This, in that region, these labels must be embedded by the system according to the present invention and monitored.
When in the step of open cut of construction road surface covers work, these labels are embedded in the side between basic unit and ground
The 55cm on boundary to 65cm depth, by accurate coordinates measure obtain these labels positional information, then with these tag IDs
Together it is recorded in the database of server 70.The position display of these labels is on numerical map so that based on being shown in map
On the positions of these labels measured.When confirming that the communication with label disconnects, known by confirming the tag ID of label
Position of the distinguishing label on numerical map, so as to assess the region that underground hole is produced under road surface.
Sensing unit 40 for sensing these labels 10 is arranged on supply unit 30.
Sensing unit 40 may include RFID antenna 41 and reading machine 42, and the height of RFID antenna 41 can be on stratum
Adjusted in the range of 5cm to 50cm.Collapsing the process of hole can be confirmed by adjusting the height of RFID antenna 41.Citing
For, can be by corresponding region decision when label 10 is adjusted to identify in the RFID antenna 41 of 10cm height on stratum
Into the stability region that will not collapse hole.For another example, when label 10 can not be had 10cm height on stratum
RFID antennas 41 identify when, the height adjustable of RFID antenna 41 is made into the 5cm on stratum and measured again with performing.If mark
Label 10 are identified, can partially be carried out by corresponding region decision into the region for collapsing hole tendency wherein collapsing hole.
Further citing, if label 10 can not be by with the RFID antenna 41 of 10cm height on stratum and by RFID antenna 41
Both identifications of the 5cm on stratum are adjusted to, can be by corresponding region decision into the region of hole is collapsed, wherein collapsing hole
Formed.
In addition, collapsing the process of hole can be confirmed by adjusting the output of RFID antenna 41, rather than adjustment RFID antenna
41 height.
Being provided with the supply unit 30 of sensing unit 40 can move on road surface.Generally, sensing unit 30 can be car
, to perform rapidly and simply measurement.
When sensing unit 40 is arranged on vehicle, the RFID antenna 41 for being adjusted to different height or output can be respectively
It is arranged on the front portion and rear portion of vehicle.In this case, can be by being adjusted to different height even if vehicle only travels once
Degree or the RFID antenna 41 of output realize the multiple inspection to these labels 10.
For example, the front portion of vehicle can be arranged on by being adjusted to the RFID antenna 41 of the 30cm height on stratum, and be adjusted
The rear portion of vehicle can be arranged on by being made into the RFID antenna 41 of the 20cm height on stratum.If the label 10 of underground can not be in car
Front portion identified by RFID antenna 41, but identified at the rear portion of vehicle by RFID antenna 41, it can be assumed that the position of label is
Change most 10cm.As another example, if the label 10 of underground can not be by the anterior RFID antenna 41 and vehicle in vehicle
The RFID antenna 41 at rear portion both identifications, it can be assumed that the existing sizable change in the position of label.Based on measurement,
Even if vehicle only travels once, the situation under stratum can also be judged.
In addition, measurement equipment (sensing unit) can be moved without single supply unit 30 by manpower.
Measurement unit 60 judges the situation under stratum based on the information transmitted from sensing unit 40, and is based on from clothes
Business device 70 provides or is stored in the information of the label position in measurement unit, target area is performed related to collapsing hole
Information (without collapsing perforated, suspicious collapsing perforated, collapse hole tendency region, collapse perforated) paint
System.
Whether it is possible to judge and be embedded in the label 10 on stratum and communicate, RFID antenna 41 must status immediately
Above the burial place of label.In addition, in order to which the system according to the present invention is efficiently used on real road, preferably
It is when the vehicle using the RFID antenna for being provided with about one lane width is traveling on the track for be embedded with label, checks
Either with or without with the label communication.
Before by the system deployment at the scene, the system according to the present invention is tested in small test place.Manufacture one
Kind vehicle measuring equipment is as shown in figure 11.The details of the device is listed in table 5.
Table 5
The stroller has four steamboats and three antennas 41 being laterally arranged between front-wheel and trailing wheel.Reading machine 42
Installed in the center of stroller and pass through cable connection to these antenna.The company for installing DGPS is provided at the center of stroller
Connect, and inverter is installed to be powered to reading machine after trailing wheel.Pushed away being arranged on as the notebook computer of measurement unit 60
The top of car, to be identified using the demonstration program inspection tag of reading machine 42.Information from DGPS is sent to notes type electricity
Brain so that the present position of label can be displayed on numerical map.Figure 12 is shown by the program related to GPS, mobile inspection
Survey the position of device and notes type is shown in by the state of the tag recognition shown by the demonstration program of reading machine 42
The burial place of RFID label tag on computer.
The system according to the present invention can also be vehicle-mounted by the way that sensing unit 40 and measurement unit 60 are further installed at
GPR systems manufacture.In such cases, big data and instant data can be exchanged by the backbone network communication server, with ginseng
Other measurements and measurement result are examined, so as to comprehensively analyze measurement.In addition, each label in data
RSSI value can be continuously accumulated to perform big data analysis, so as to reasonably assess the stratum around embedded label
Minor alteration.
The operation sequence of vehicle-mounted type detection means is basically configured to show the embedded of these labels on numerical map
Position and the communications status of these labels, as shown in figure 13.Further, the operation sequence is configured to navigate and expand using 3D
Increase real border technology to facilitate the measurement of measurement and display/analysis, as shown in figure 14.
The person of connecing, it will be described in detail the method that hole is collapsed according to the quick detection of the present invention.
First, these labels 10 are embedded in 30cm depth or more from the surface on road surface.Whilst it would be preferable to depth
These labels are installed on ground, but road surface is contemplated, the performance of these labels, the situation of output etc. of antenna judge these marks
The depth of burying of label.
Herein, these labels are necessarily mounted at identical depth, simply to judge the abnormal journey of these labels
Degree.Because output of the change of detecting distance depending on the depth of burying and RFID antenna of these labels.Have in new construction
In the region for having the road of roadbed, ground and pavement structure, when construction road, these labels are embedded in certain depth.
In new installation or the part of replacement water and sewage pipe, the embedded 55cm to 65cm under a subterranean formation of these labels depth, then lay
Road surface.
By measuring the accurate information obtained on each label position, and in server 70 or according to these
The measurement unit 60 of tag ID establishes database.
After the laying on road surface is completed, the region of these labels is installed using measurement equipment or measurement car periodic investigation, with
Inspection collapses hole.
Before target area is measured, the depth of burying based on these labels, it is necessary to adjustment be arranged on measurement equipment (or amount
Measuring car) on RFID reading machines antenna output or height.Preferably, the proper height of antenna is judged in this way, when
Antenna from the proper height of the given output of antenna raise about 5cm when, these labels can not be identified by antenna.In other words, with this
The mode of sample adjusts the height of antenna, when stratum these label movements from its home position more than 5cm, these labels without
Method is identified by antenna.If these labels can not be arrived by antenna detection, this means generation of these labels due to collapsing hole
The position that machine examination measures can not be read by being scanned into these labels.
, can be by the way that multiple antennas be connected into reading machine come propagation energy one in the horizontal direction in vehicle-mounted measuring equipment
The horizontal extent of secondary detection, so as to detect faster.
Figure 15 is the flow chart for the method that hole is collapsed according to the quick detection of the present invention.In the method, using embedded
These labels 10 under road surface collapse hole in early stage detection.
Reference picture 15, first, open cut cover work after, the stage on construction road surface these labels be embedded in basic unit with
The 55cm on the border of ground to 65cm depth (S10).
During pavement construction or after construction, the positional information for obtaining these labels immediately is measured by accurate coordinate
(S12).The positional information of these labels obtained is recorded in the database of server 70 together with these tag IDs
(S14)。
Afterwards, the supply unit 30 for being provided with sensing unit 40 and measurement unit 60 is embedded with the road of label under road surface
Moved on face, to be measured (S16).Preferably, such measure is periodically to carry out.
Whether measurement unit 60 judges these labels 10 by RF sensing units identification (S18).When these labels 10 are identified
When, according to the tag ID of these labels 10 of the present invention, measurement unit receives the positional information of these labels from server 70
(S20), and by the region for being embedded with these labels identified one is depicted as without the region (S22) for collapsing hole.
When these labels can not be identified in S18 steps, according to the tag ID of these labels 10, measurement unit is from clothes
Be engaged in device 70 receive these labels positional information, and the region for the label for being embedded with these None- identifieds can be made one can
Doubtful collapses perforated (S24).
Then, height or the output of the antenna of RF sensing units 40 are reseted, and restarts to measure (S26).At this
In, reset height or the output of antenna by reducing the height of antenna or the output execution by increasing antenna towards stratum.
Then, measurement unit 60 judges whether these labels 10 are identified (S28) by RF sensing units 40.When these labels
10 it is identified when, according to the tag ID of these labels 10, measurement unit receives the positional information of these labels from server 70
(S30), and by the region of the label for these identifications being embedded with it is depicted as a region (S32) for collapsing hole tendency.
When these labels can not be identified in step S28, according to the tag ID of these labels 10, measurement unit is from clothes
Business device 70 receives the positional information of these labels, and the region for the label for being embedded with these None- identifieds is depicted as into one and collapsed
Fall into the region (S34) of hole.
According to another embodiment of the present invention, magnetic 20 can be added to these labels 10 so that RFID label techniques
It can be used together with magnetic detection technology.
Figure 16 is according to another embodiment of the present invention display label complex 30.Figure 16 (a) is the vertical view of label complex 30
Figure, and Figure 16 (b) is the sectional side view of label complex 30.
Reference picture 16, label complex 30 can pass through the upper of the label 10 being fixed to magnetic 20 based on RFID
Surface, and will make on support pedestal 32 that label 10 is fixed in waterproof case 31.Herein, magnetic 20 can be neodymium
Magnet (neodymium magnet).
Herein, shell 31 can reduce the propagation distance of radio wave with magnetic 20.Use the biography of shorter radio wave
Broadcasting the label of distance has relatively low unit price.Therefore, being used for infrastructure construction cost has short radio propagation
These labels of distance are favourable.Although the label with long radio range can be used to ensure that 55cm to 65cm
Detect distance, such label is dimensionally larger, causes the reduction of machinability, as a result, overall construction cost increases
Add.Therefore, reflecting plate 33 is included according to the label complex of the present invention, is located at the lower section of label 10, and with compensation in shell 31
The radio range of label 10, and stable communication is provided.Configuring reflecting plate 33 causes its concave surface towards label
10 radio waves launched with the antenna 41 reflected from sensing unit 40, and radio wave is focused on the label 10.This
Outside, reflecting plate allows in the preceding surface of label 10 upwards to launch from the radio wave of label 10, is being marked without scattering to
The stratum of the rear lower face of label 10.Reflecting plate 33 can be formed by any material of reflection radio wave.
Herein, when being embedded in stratum, magnetic 20 act as anomalous body.Magnetometer 43 (see Fig. 1) is felt on stratum
The magnetic force of magnetic is surveyed to detect magnetic.Therefore, magnetometer can be used to judge in the degree for carrying out collapsing hole.
In addition to determining whether to collapse hole by sensing the magnetic force of magnetic 20, by monitoring magnetic
The change of magnetic force value is come to determine whether to collapse hole be possible.For this purpose, when embedded label complex 30, it is individual
The initial magnetic force value of other magnetic 20 can be recorded in server 70 together with tag ID.If during regular measure
The magnetic force value of measured magnetic 20 is smaller than initial magnetic force value, it is possible to determine that magnetic 20 has moved (decline), and buries
The region of bidding label complex is classified into one and suspicious collapses perforated.In other words, the initial magnetic force value quilt of magnetic 20
Record, then measures the magnetic force value of magnetic 20 by periodically measuring.If measured magnetic force value of magnetic 20 etc.
In initial value, it is possible to determine that the region of embedded label complex is that nothing collapses the region of hole, wherein hole will not be collapsed
Hole, and if the magnetic force value of measured magnetic 20 is less than initial value, it is possible to determine that the region of embedded label complex is can
Doubtful collapses the region of hole, wherein collapsing the existing a certain degree of process of hole.If in addition, it is not measured by magnetic
20 magnetic force, it is possible to determine that the region of embedded label complex is the region for collapsing hole tendency, wherein collapsing the existing phase of hole
When big process or to collapse hole.Local circumstance or testing conditions setting are may depend on reference to magnetic force value.
After the measurement based on RFID is carried out to target area using supply unit 30, magnetic force detection can not have
Identify that the part of these labels 10 extraly performs, so as to significantly reduce detection error.In addition, use label complex 30
The measurement based on RFID can be performed simultaneously to measure with magnetic.If label complex is surveyed by two amounts and is identified exception,
Can the region of embedded label complex certainly be one suspicious to collapse perforated.
Figure 17 shows the result that magnetic measures.After magnetic 20 is buried in a grid formation, perform magnetic and measure.
The place of embedded magnetic 20 measures high magnetic force value (see Figure 17 (a) circle).Then, removed by excavating in specified point
Magnetic 20, and again perform magnetic measure.Confirm to be not measured by magnetic force in the point (see Figure 17 (b) circle).
Therefore, the present invention provides the system and method that a kind of quick detection collapses hole, and wherein these labels are embedded in
Under the road surface on stratum so that identify these labels, and inspect periodically the change of these tag states on road surface, so as to fast
Speed and accurate detection underground hole.
In addition, the system and method for hole is collapsed according to a kind of quick detection of present invention offer, wherein can be with relatively low
Initial construction cost, underground hole is semi-permanently detected under target road surface, and because easy measure can with interpretation process
To be operated under without professional manpower, and for repeatedly measuring almost without generation extra cost.
Although some embodiments are described herein, it should be appreciated by those skilled in the art that these embodiments are only with explanation
Mode provide, and the invention is not restricted to this.Moreover, it should be understood that the situation of spirit and scope of the invention is not being departed from
Under, those skilled in the art can carry out various modifications, change and change.Therefore, the scope of the present invention should be only by appended right
It is required that and its equivalent limitation.
Claims (24)
- A kind of 1. system that quick detection collapses hole, it is characterised in that including：One label, it is embedded on the stratum being laid under road surface；One sensing unit, identify the label；One measurement unit, measure one based on the information identified by the sensing unit and collapse hole；One supply unit, the mobile sensing unit and the measurement unit on road surface；One server, the positional information of the label is provided to the measurement unit,Wherein the measurement unit receives the positional information of the label of the sensing unit None- identified from the server, and will bury The territorial classification of label provided with the None- identified suspicious collapses perforated into one.
- 2. system according to claim 1, it is characterised in that the sensing unit includes an antenna and a reading machine, is used for Start the RFDC with the label；The label has a unique tag ID；And the server admin and the label Positional information corresponding to ID, and the information is provided to the measurement unit.
- 3. system according to claim 2, it is characterised in that the label includes multiple labels, and the multiple label is with net Case form is embedded under road surface.
- 4. system according to claim 3, it is characterised in that each of the label is a passive label and had For the antenna and a memory of communication, in bar shaped housing memory storage tag ID, and the housing is waterproof 's.
- 5. according to the system any one of claim 1-4, it is characterised in that the road surface is pitch or concrete road surface, And the label is embedded in the boundary between being gone up at the top of the bottom for supporting the road surface and a ground or the ground.
- 6. according to the system any one of claim 1-4, it is characterised in that the road surface is pitch or concrete road surface, And the label is embedded in depth and located below 55cm to the 65cm road surface.
- 7. system according to claim 2, it is characterised in that the antenna of the sensing unit has adjustable height.
- 8. system according to claim 2, it is characterised in that the antenna of the sensing unit has adjustable output.
- 9. system according to claim 2, it is characterised in that the antenna of the sensing unit includes at least two antennas, It is arranged at the diverse location of the supply unit, and those antennas are set as difference in height or output.
- 10. system according to claim 2, it is characterised in that the reading machine provides the signal of instruction return from the label Amplitude a RSSI value, and compared with the measurement unit is by the RSSI value and the label RSSI value measured when embedded, with The change of the state and situation of the label is detected, to check stratum deformation.
- 11. system according to claim 1, it is characterised in that the label is configured to a label complex, and the label is answered Zoarium includes：One magnetic, it is fixed to a upper surface of the label；One shell, it is configured to receive the label and the magnetic； And a reflecting plate, a bottom of the label being fixed in the shell, and radio wave is reflected, and the wherein sensing unit Including a magnetometer, the size of the magnetic force for sensing the magnetic or the magnetic force for measuring the magnetic.
- 12. a kind of method that quick detection collapses hole a, it is characterised in that label is embedded under road surface, and is periodically examined The identification of the label is looked into, whether a underground hole is produced under road surface with detection.
- 13. according to the method for claim 12, it is characterised in that including：(a) label is buried under the road surface；(b) obtain institute's positional information of embedded label and the information and a tag ID are collectively stored in a server；(c) on road surface the mobile supply unit for being provided with a sensing unit to be measured；(d) by a measurement unit, judge whether the label is equipped with the sensing unit of an antenna and a reading machine and is known Not；(e) from when self-identifying goes out the label, the position of the label is received from the server by the tag ID of the label identified Confidence is ceased, and the region for being embedded with the label identified is depicted as into one without the region for collapsing hole；And(f) when the label None- identified, the label is received from the server by the tag ID of the label of the None- identified Positional information, and the region for the label for being embedded with the None- identified is depicted as a region for collapsing hole.
- 14. according to the method for claim 13, it is characterised in that further comprise：After step (f), (g) resets this The height of the antenna of sensing unit is exported to be measured again；(h) when identifying the label by the detection unit, by the tag ID of the label identified from the server The positional information of the label is received, and this will be embedded with and identify that label area is depicted as a region for collapsing hole tendency； And(i) when the label None- identified, the label is received from the server by the tag ID of the label of the None- identified Positional information, and the region for the label for being embedded with the None- identified is depicted as a region for collapsing hole.
- 15. according to the method for claim 13, it is characterised in that in step (a), the label includes multiple labels, institute Multiple labels are stated to be embedded under road surface in a grid formation.
- 16. according to the method for claim 16, wherein each of the label is a passive label and with being used for One antenna of communication, an and memory, in bar shaped housing memory storage tag ID, and the housing is waterproof.
- 17. according to the method any one of claim 12-16, it is characterised in that the road surface is pitch or concrete road Face, and the label is embedded in the boundary between being gone up at the top of the bottom for supporting the road surface and a ground or the ground.
- 18. according to the method any one of claim 12-16, it is characterised in that the road surface is pitch or concrete road Face, and the label is embedded in depth and located below 55cm to the 65cm road surface.
- 19. according to the method for claim 13, it is characterised in that the antenna of the sensing unit has adjustable height Degree.
- 20. according to the method for claim 13, it is characterised in that the antenna of the sensing unit has adjustable defeated Go out.
- 21. according to the method for claim 13, it is characterised in that the antenna of the sensing unit includes at least two days Line, it is arranged at the diverse location of the supply unit, and the antenna is set as difference in height or output.
- 22. according to the method for claim 13, it is characterised in that the reading machine provides the signal of instruction return from the label Amplitude a RSSI value, and compared with the measurement unit RSSI value that measures the RSSI value and the label when embedded, with inspection The change of the state and situation of the label is surveyed, to check stratum deformation.
- 23. according to the method for claim 13, it is characterised in that be configured in step (a) by the embedded label One label complex, the label complex include：One magnetic, it is fixed to a upper surface of the label；One shell, is configured to Receive the label and the magnetic；And a reflecting plate, a bottom of the label being fixed in the shell, and reflect radio Ripple, and the sensing unit in step (d) includes a magnetometer, senses the magnetic force of the magnetic, andWherein this method further comprises determining whether to sense the magnetic by the magnetometer.
- 24. according to the method for claim 13, it is characterised in that be configured in step (a) by the embedded label One label complex, the label complex include：One magnetic, it is fixed to a upper surface of the label；One shell, is configured to Receive the label and the magnetic；And a reflecting plate, a bottom of the label being fixed in the shell, and reflect radio Ripple, and the sensing unit in step (d) includes a magnetometer, senses the magnetic force of the magnetic, andWherein this method further comprises：In step (d), by by the one of the embedded magnetic initial magnetic force value and the label ID is collectively stored in the server；And by the magnetic force value and the initial magnetic force in step (d) by the magnetometer measures Value compares.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20150086720 | 2015-06-18 | ||
| KR10-2016-0076599 | 2016-06-20 | ||
| KR1020160076599A KR101793830B1 (en) | 2015-06-18 | 2016-06-20 | System and method for rapidly detecting a sink hole |
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| Publication Number | Publication Date |
|---|---|
| CN107526118A true CN107526118A (en) | 2017-12-29 |
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| CN201710466759.2A Pending CN107526118A (en) | 2015-06-18 | 2017-06-20 | Quick detection collapses the system and method for hole |
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|---|---|
| KR (1) | KR101793830B1 (en) |
| CN (1) | CN107526118A (en) |
| WO (1) | WO2017222271A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851458A (en) * | 2020-07-20 | 2020-10-30 | 重庆地质矿产研究院 | Karst soil cave search positioning method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102016592B1 (en) | 2018-02-28 | 2019-09-02 | (주)지오스캔 | Method and apparatus for geologic structure analysis |
| KR102017641B1 (en) | 2019-01-22 | 2019-09-03 | 지케이엔지니어링(주) | Surge Protection Integrated Circuit Breaker with digital analysis and protection to prevent leakage |
| CN113671591A (en) * | 2021-06-29 | 2021-11-19 | 周加东 | High-precision pipeline detecting instrument for pipeline tracing and troubleshooting |
| KR102457694B1 (en) | 2022-05-04 | 2022-10-21 | 주식회사 지오메카이엔지 | Variable boarding and fixinf apparatus for underground cavities detector of under a railway |
| CN116520451B (en) * | 2023-04-24 | 2024-03-12 | 四川阳光上元能源技术有限公司 | Underground goaf detection method based on quantum detection technology |
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Also Published As
| Publication number | Publication date |
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| WO2017222271A1 (en) | 2017-12-28 |
| KR101793830B1 (en) | 2017-11-03 |
| KR20160150062A (en) | 2016-12-28 |
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Application publication date: 20171229 |