CN109946296A - Crack change monitoring device and crack variation monitoring method - Google Patents
Crack change monitoring device and crack variation monitoring method Download PDFInfo
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- CN109946296A CN109946296A CN201910157007.7A CN201910157007A CN109946296A CN 109946296 A CN109946296 A CN 109946296A CN 201910157007 A CN201910157007 A CN 201910157007A CN 109946296 A CN109946296 A CN 109946296A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
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Abstract
The present invention provides a kind of crack change monitoring device and crack variation monitoring methods.Wherein, crack change monitoring device includes: cabinet, and cabinet has detection faces, and detection faces fitting is arranged at position to be detected；Fixed structure, cabinet are mounted at position to be detected and are remained stationary by fixed structure；At least one imaging sensor, imaging sensor is arranged in cabinet and the test side of imaging sensor is arranged towards detection faces；Light source, light source are arranged in cabinet and are arranged towards detection faces；Crack variation monitoring portion, crack variation monitoring portion are connect with imaging sensor；Output device, output device are connect with crack variation monitoring portion, by by show, store record, alarm it is at least one in a manner of exported.The present invention solves the problems, such as that crack change monitoring device is difficult to persistently be monitored same position in the prior art.
Description
Technical field
The present invention relates to Crack Detection apparatus fields, become in particular to a kind of crack change monitoring device and crack
Change monitoring method.
Background technique
The material that concrete is used as the various concrete structures such as building, metal bridge, tunnel, application are more and more extensive.
But with the increase of concrete service life, crack can be generated, and rainwater can be penetrated into crack deteriorates wall more and cause
Building strength reduction.It must safeguard when carry out maintenance and the state of frequent fracture is needed to carry out to building thus
It holds.
At present when checking the crack on concrete, operating personnel needs live directly measure using graduated scale to split
The width of seam is taken pictures using digital camera fracture progress scene, and measurement result is taken back administrative center later and is analyzed
It determines the need for being safeguarded accordingly again.
Current detection means is the cracking of wall surface state in which in bat pinch cracking of wall surface, and whether building has arrived need
The state to be safeguarded is periodically required to scene measure, and executes very troublesome.In addition, being difficult regardless of which device
Cracking of wall surface is measured in same position, cannot accurately conclude how crack state changes and whether need to continue to survey
Amount.
Exist in the prior art what crack change monitoring device was difficult to persistently to be monitored same position from the above
Problem.
Summary of the invention
The main purpose of the present invention is to provide a kind of crack change monitoring device and crack variation monitoring methods, to solve
Crack change monitoring device is difficult to the problem of being persistently monitored to same position in the prior art.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of crack change monitoring device, packet
Include: cabinet, cabinet have detection faces, and detection faces fitting is arranged at position to be detected；Fixed structure, cabinet pass through fixed structure
It is mounted at position to be detected and remains stationary；At least one imaging sensor, imaging sensor be arranged in cabinet and
The test side of imaging sensor is arranged towards detection faces；Light source, light source are arranged in cabinet and are arranged towards detection faces, and light source is
It is multiple, and the two sides up and down of imaging sensor have been respectively provided at least a light source, light source irradiates the metope at position to be detected
And crack, imaging sensor acquire the brightness degree line at metope and crack；Crack variation monitoring portion, crack variation monitoring portion with
Imaging sensor connection, crack variation monitoring portion receive collected brightness of imaging sensor etc. according to the first prefixed time interval
Grade line is simultaneously stored, and according to the second prefixed time interval any two groups of brightness degrees line inlet wire in front and back compared with obtain to
The change width data in the crack of inspection positions；Output device, output device are connect with crack variation monitoring portion, by aobvious
Show, store record, at least one mode of alarm is exported.
Further, cabinet is transversely divided into power-section and detection zone, and detection zone includes acquisition zone and treatment region, and is handled
Area is located above or below acquisition zone；Imaging sensor and light source are located at acquisition zone, and crack variation monitoring portion is located at treatment region,
Crack change monitoring device includes battery group, and battery group is located at power-section and to imaging sensor, light source and crack variation
Monitoring portion power supply.
Further, crack change monitoring device further includes switching circuit, and battery group is powered to switching circuit, and image passes
Sensor, light source, crack variation monitoring portion and output device are connect with switching circuit, and switching circuit is controlled according to third preset time
The starting or shutdown of crack change monitoring device.
Further, imaging sensor and light source are multiple, and multiple images sensor and multiple light sources successively replace
It is arranged, multiple images sensor is connect with crack variation monitoring portion respectively.
Further, the resolution ratio of imaging sensor is more than or equal to 200DPI.
Further, light source is LED light source, and LED light source emits visible light and/or black light.
Further, the collected scan path with clock signal synchronization of imaging sensor in multiple line-scanning periods
Brightness value changes to form brightness degree line.
Further, variation monitoring portion in crack includes clock unit, sets the first preset time and the by clock unit
Two preset times and timing；Data storage cell receives the collected brightness degree line of imaging sensor and is stored；Calculation
The brightness degree line of unit, calculation unit two groups of acquisitions any to front and back carries out Difference Calculation, to obtain at position to be detected
The change width data in crack.
Further, data storage cell includes the first memory and the second memory, and the first memory records image and passes
The brightness degree line that sensor acquires for the first time, the second memory record the brightness degree that imaging sensor acquires every time in addition to first
Line, calculation unit carry out Difference Calculation to the brightness degree line of the first memory and the second memory, current to be detected to obtain
The change width data in the crack at position.
Further, output device includes radio control section, and radio control section receives and sends the change width number in crack
According to.
Further, radio control section includes: wireless network；Wireless control ontology, wireless control ontology receive crack
The data of change width；Antenna, antenna are connect with wireless control ontology, and antenna is become the width in crack by wireless network
Change data to be sent out.
Further, output device further include: the width of database, the crack that database purchase radio control section is sent becomes
Change data；The change width data of computer terminal fracture are analyzed, when the change width data in the crack in database are super
Out when early warning value, computer terminal issues prompt.
Further, computer terminal includes at least one of display, buzzer siren and alarm lamp.
According to another aspect of the present invention, a kind of crack variation monitoring method is provided, prison is changed using above-mentioned crack
It surveys device fracture to be monitored, crack variation monitoring method includes: to fill crack variation monitoring before fracture is monitored
It sets on the metope where being fixed on crack, and is fitted in the detection faces of the cabinet of crack change monitoring device on metope, and make
Extending direction of the scan path of the imaging sensor of crack change monitoring device perpendicular to crack；Open power supply, crack variation
Monitoring device carries out Initialize installation process automatically, by pre-set clock frequency, line-scanning period, scanning times, light
The opening time in source and the relevant parameter of imaging sensor are called in the corresponding register in inside of imaging sensor, are completed
Initialize installation；
Crack change monitoring device carries out the initial value test phase in crack, starts imaging sensor, makes imaging sensor
It is scanned by the width of preset condition fracture, and result is stored in the crack variation monitoring portion of crack change monitoring device
The first memory in；The width that imaging sensor continues fracture is scanned, and result is stored in crack variation monitoring
In second memory in portion；The calculation unit in crack variation monitoring portion is to the data saved in the second memory and the first memory
It calculates, and result is issued into computer terminal, then crack change monitoring device again proceeds to standby mode.
Further, after the original width in crack is measured, crack change monitoring device can be established logical with computer terminal
Letter contact, issues computer terminal for the code of the output device of crack change monitoring device first, and computer terminal receives crack change
A confirmation message can be replied to crack change monitoring device after changing the code of monitoring device, receive output device after confirmation message
The primary data in crack is issued into computer terminal again.
Further, crack change monitoring device enters in routine work program, firstly, crack change monitoring device enters
The partial function of standby mode, crack change monitoring device can automatically power off, the clock unit in crack variation monitoring portion automatically into
Enter time status, after reaching third prefixed time interval, entire crack change monitoring device is restored to working condition, image sensing
Device is scanned, and scan data is stored in the second memory.
Further, if computer terminal judgement sends data exception, crack change monitoring device can be called at any time, is split
Seam change monitoring device can be again restored to working condition after receiving call signal, and carry out the width measurement in crack again, and
Measurement result is issued into computer terminal again.
It applies the technical scheme of the present invention, the crack change monitoring device in the application includes cabinet, fixed structure, at least
One imaging sensor, light source, crack variation monitoring portion and output device.Cabinet has detection faces, and detection faces fitting setting exists
At position to be detected；Cabinet is mounted at position to be detected and is remained stationary by fixed structure；Imaging sensor setting
In cabinet and the test side of imaging sensor is arranged towards detection faces；Light source is arranged in cabinet and is arranged towards detection faces,
Light source is multiple, and the two sides up and down of imaging sensor have been respectively provided at least a light source, and light source irradiates at position to be detected
Metope and crack, imaging sensor acquire the brightness degree line at metope and crack；Crack variation monitoring portion and image sensing
Device connection, crack variation monitoring portion receive the collected brightness degree line of imaging sensor according to the first prefixed time interval and go forward side by side
Row storage, and compared any two groups of brightness degrees line inlet wire in front and back to obtain position to be detected according to the second prefixed time interval
The change width data in the crack at place；Output device is connect with crack variation monitoring portion, to pass through display, storage record, alarm
At least one mode exported.
Using above structure crack change monitoring device when, by using light source treat detection position be irradiated, and
Detection position is treated by imaging sensor and carries out image acquisition, can send the bright of position to be detected to crack variation monitoring portion
Grade line is spent, crack variation monitoring portion can store two groups of difference brightness degree lines after receiving brightness degree line
And it handles, while calculating the change width of the same position of corresponding time interval internal fissure.In addition, crack variation monitoring portion is also
The data being calculated can be sent to output device after the completion of calculating, when the data that output device receives are more than to set
When definite value, it just can issue and remind to staff.Again since crack change monitoring device also has cabinet and fixed structure, institute
It can be set with structures such as imaging sensor, light source, crack variation monitoring portions in the change monitoring device of crack in box house,
And be fixed at position to be detected by fixed structure, the same position so as to long-term repeatedly fracture is detected.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the crack change monitoring device of a specific embodiment according to the present invention；
Fig. 2 shows the structural schematic diagrams of metope to be detected；
Fig. 3 is shown the crack in Fig. 2 is detected after obtained action specification timing diagram；
Fig. 4 shows the structural schematic diagram after the crack in Fig. 2 broadens；
Fig. 5 is shown the crack in Fig. 4 is detected after obtained action specification timing diagram；
Fig. 6, which is shown, carries out the action specification timing obtained after Difference Calculation to the action specification timing diagram in Fig. 3 and Fig. 5
Figure；
Fig. 7 shows the partial perspective view of the crack change monitoring device in Fig. 1；
The cabinet that Fig. 8 shows the crack change monitoring device in Fig. 1 is mounted on the schematic diagram on armored concrete；
The cabinet that Fig. 9 shows the crack change monitoring device in Fig. 1 is mounted on schematic diagram when bridge purlin；
The distribution that Figure 10 shows in another embodiment of the invention when imaging sensor and light source are multiple is shown
It is intended to；
Figure 11 shows the schematic diagram of the metope to be detected for the crack change monitoring device being applicable in Figure 10.
Wherein, the above drawings include the following reference numerals:
10, cabinet；20, imaging sensor；30, light source；40, crack variation monitoring portion；41, data storage cell；411,
First memory；412, the second memory；42, unit is calculated；43, battery group；50, output device；51, radio control section；
511, wireless network；512, wireless control ontology；513, antenna；52, database；53, computer terminal.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application
The normally understood identical meanings of person of an ordinary skill in the technical field.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually needle
For direction shown in the drawings, or for component itself is on vertical, vertical or gravity direction；Equally
Ground for ease of understanding and describes, and " inside and outside " refers to the inside and outside of the profile relative to each component itself, but the above-mentioned noun of locality is not
For limiting the present invention.
In order to solve the problems, such as that crack change monitoring device is difficult to persistently be monitored same position in the prior art, this
Application provides a kind of crack change monitoring device and crack variation monitoring method.
As shown in Figure 1 and Figure 7, the crack change monitoring device in the application includes: cabinet 10, fixed structure, at least one
A imaging sensor 20, light source 30, crack variation monitoring portion 40 and output device 50.Cabinet 10 has detection faces, detects face paste
It closes and is arranged at position to be detected；Cabinet 10 is mounted at position to be detected and is remained stationary by fixed structure；Image
Sensor 20 is arranged in cabinet 10 and the test side of imaging sensor 20 is arranged towards detection faces；Light source 30 is arranged in cabinet 10
It is interior and be arranged towards detection faces, light source 30 be it is multiple, and the two sides up and down of imaging sensor 20 have been respectively provided at least a light
Source 30, light source 30 irradiate metope and crack at position to be detected, and imaging sensor 20 acquires the brightness etc. at metope and crack
Grade line；Crack variation monitoring portion 40 is connect with imaging sensor 20, and crack variation monitoring portion 40 is according to the first prefixed time interval
It receives the collected brightness degree line of imaging sensor 20 and is stored, and is according to the second prefixed time interval that front and back is any
Two groups of brightness degree line inlet wires compare to obtain the change width data in the crack at position to be detected；Output device 50 and crack
Variation monitoring portion 40 connect, by by show, store record, alarm it is at least one in a manner of exported.
Using above structure crack change monitoring device when, by using light source 30 treat detection position be irradiated,
And detection position is treated by imaging sensor 20 and carries out image acquisition, location to be checked can be sent to crack variation monitoring portion 40
The brightness degree line set, crack variation monitoring portion 40, can be to two groups of difference brightness degree lines after receiving brightness degree line
It is stored and is handled, while calculating the change width of the same position of corresponding time interval internal fissure.In addition, crack changes
The data being calculated can also be sent to output device 50 after the completion of calculating by monitoring portion 40, when output device 50 receives
When the data arrived are more than setting value, it just can issue and remind to staff.Again since crack change monitoring device also has case
Body 10 and fixed structure, so imaging sensor 20, light source 30, crack variation monitoring portion 40 etc. in the change monitoring device of crack
Structure can be set inside cabinet 10, and is fixed at position to be detected by fixed structure, so as to long-term repeatedly right
The same position in crack is detected.
In a specific embodiment, the size of the cabinet 10 of selection can achieve the horizontal * 5cm of 10cm and indulge * 3cm high.
As shown in fig. 7, cabinet 10 is transversely divided into power-section and detection zone, detection zone includes acquisition zone and treatment region, and
Treatment region is located above or below acquisition zone；Imaging sensor 20 and light source 30 are located at acquisition zone, crack variation monitoring portion 40
Positioned at treatment region, crack change monitoring device includes battery group 43, and battery group 43 is located at power-section and to imaging sensor
20, light source 30 and crack variation monitoring portion 40 power.It is arranged in this way, the structure inside cabinet 10 is enabled to more to step up
It gathers, thereby may be ensured that cabinet 10 can be minimized more.And then crack change monitoring device can be allow in building, high speed
Many places installation is easily carried out on the metope of highway, bridge and tunnel.
As shown in figure 8, be the scheme of installation that crack change monitoring device is mounted on armored concrete, by glue or
The common methods such as expansion thread are stamped on armored concrete to firmly fix.In addition, around cabinet can with shielding material into
Row covering prevents ambient light from shining and invades and harasses with rainwater, it is ensured that crack change monitoring device can be used for a long time.As shown in figure 9, being to use
Crack change monitoring device is mounted on the scheme of installation on the bridge purlin of highway or metal bridge by same method.
Optionally, crack change monitoring device further includes switching circuit, and battery group 43 is powered to switching circuit, and image passes
Sensor 20, light source 30, crack variation monitoring portion 40 and output device 50 are connect with switching circuit, and switching circuit is default according to third
The starting or shutdown of time control critical eigenvalue change monitoring device.It is arranged in this way, can stops storing within the non-measured period
Battery pack 43 to imaging sensor 20, light source 30, crack variation monitoring portion 40 and output device 50 power supply, to increase
The pot life of battery group 43.
Optionally, imaging sensor 20 and light source 30 are multiple, and multiple images sensor 20 and multiple light sources 30 according to
Secondary to be alternately arranged setting, multiple images sensor 20 is connect with crack variation monitoring portion 40 respectively.It is arranged in this way, it can be right
Multiple positions of cracking of wall surface carry out while monitoring, and then it is more detailed that crack change monitoring device can be allow to monitor
Crack change information.
As shown in Figure 10, imaging sensor 20 at this time is three.Correspondingly, as shown in figure 11, when imaging sensor is
It, can three different locations (and three different crack read lines 908,909 to the crack 113 of same metope 112 at three
With 910) be monitored.
Specifically, the resolution ratio of imaging sensor 20 is more than or equal to 200DPI.In common detection requirement, it is desirable that 0.2
Millimeter or more crack periodically to put inspection record, the master data as governing plan.And to detect that 0.2 millimeter or more splits
Seam, the image resolution ratio needed select more commonly used 200DPI or more points at least in 127DPI or more, therefore in this application
The contact-type image sensor 20 of resolution.
Optionally, light source 30 is LED light source, and LED light source emits visible light and/or black light.It was monitored common
Cheng Zhong can choose wavelength in LED light source of visible light band domain, such as feux rouges, green light, blue light etc..And in certain special fields
Close the detailed status of the lower reading crack groove that can more take by storm using the LED light source of infrared light, ultraviolet light.
Specifically, the collected scan path with clock signal synchronization of imaging sensor 20 in multiple line-scanning periods
Brightness value changes to form brightness degree line.
It as shown in Figure 3 and Figure 5, is the action specification timing diagram of imaging sensor 20, including clock signal 201 and row period
Signal 202, wherein row periodic signal 202 includes the line-scanning period twice.Certainly, row periodic signal 202 can also include multiple
Scanning, the number of scanning are determined by the consistency of obtained data.Imaging sensor 20 is by will be synchronous with clock signal 201
Analog signal is converted into digital signal, can export brightness degree line (i.e. in 203 and Fig. 5 in Fig. 3 by digital signal
403), wherein brightness degree includes 256 grades in total, and by exporting Figure 20 5 (brightness degree 0) and bright output Figure 20 4 with dark
(brightness degree 255) compares, and can be derived that crack corresponding position in brightness degree line.In Fig. 2 and Fig. 4, one
The secondary line-scanning period represents fracture read line 115 and carries out single pass, wherein the crack (and 113 in Fig. 2 of metope 112
With 301 in Fig. 4) it can change with time.
As shown in Figure 3 and Figure 5, A is that do not have crannied metope part, and B is corresponding rift portion in metope.
When fracture width is calculated, if the imaging sensor 20 for the use of resolution ratio being 300DPI, pixel
Width is 0.085 millimeter, if crack corresponding width in brightness degree line is 3 clock signals, i.e. three pixels.Therefore energy
The width for enough calculating crack is 0.085mm*3=0.255mm.
Specifically, crack variation monitoring portion 40 includes clock unit, data storage cell 41 and calculation unit 42.When passing through
Clock unit sets the first preset time and the second preset time and timing；Receive the collected brightness degree line of imaging sensor 20
And it is stored；The brightness degree line for calculating 42 pairs of any two groups of acquisitions in front and back of unit carries out Difference Calculation, to be detected to obtain
The change width data in the crack at position.It is arranged in this way, data storage cell 41 can be each to imaging sensor 20
The digital signal and brightness degree line of output are stored, and calculation unit 42 can be to the brightness etc. in data storage cell 41
Grade line is calculated, and can obtain the crack in corresponding time interval by calculating any fracture width value twice of comparison
Change width.By being set using unit, the detection for capableing of fracture carries out control and timing.
Optionally, in calculation unit 42, in order to enable the image in the crack arrived is distincter clear, one can also be added
Image processing techniques known to a little sensitivity corrections, edge strengthening, setting contrast etc., so that obtaining more accurate crack calculates essence
Degree.
As shown in fig. 6, be calculation unit 42 to the signal of the comparing result of monitoring data twice, wherein imaging sensor 20
Resolution ratio be 300DPI, in brightness degree line 503, the part that do not answer in crannied region is C, and the corresponding position in crack
It is set to D, the width of D corresponding two clock signals, i.e. two pixels, that is to say, that change width 0.085mm*2=0.17mm,
I.e. in the time interval acquired twice, the change width in crack 0.17mm.
Optionally, 41 first memory 411 of data storage cell and the second memory 412, the first memory 411 record figure
As the brightness degree line that sensor 20 acquires for the first time, the second memory 412 records imaging sensor 20 and adopts every time in addition to first
The brightness degree line of collection, calculation unit 42 carry out difference meter to the brightness degree line of the first memory 411 and the second memory 412
It calculates, to obtain the change width data in the crack at current position to be detected.It is arranged in this way, calculation unit 42 can be facilitated
Difference Calculation is carried out to the data that imaging sensor 20 transmits, in calculating process, by acquiring every time to imaging sensor 20
Brightness degree line compared with the brightness degree line acquired for the first time, can be derived that crack real-time width and original width it
Between changing value.
Optionally, the mode of 412 storing data of the second memory, which can be, all stores all data, or will most
The data closely acquired cover data before.
Specifically, output device 50 includes radio control section 51, and radio control section 51 receives and sends the width change in crack
Change data.It is arranged in this way, after calculation unit 42 completes Difference Calculation, radio control section 51 can be sent data to simultaneously
It is sent out by radio control section 51.
Specifically, radio control section 51 includes wireless network 511, wireless control ontology 512 and antenna 513.Wireless control
Ontology 512 receives the data of the change width in crack；Antenna 513 is connect with wireless control ontology 512, and antenna 513 passes through
The change width data in crack are sent out by wireless network 511.In this application, the wireless network 511 of selection is low-power consumption
Wide area wireless network 511.
Specifically, output device 50 further includes database 52.Database 52 stores the crack that radio control section 51 is sent
Change width data；The change width data of 53 fracture of computer terminal are analyzed, when the width in the crack in database 52
When delta data exceeds early warning value, computer terminal 53 issues prompt.It is arranged in this way, receives wireless control in database 52
After the change width data in the crack that portion 51 is sent, data can be saved.And computer terminal 53 is set, electricity can be passed through
Brain terminal 53 is analyzed and is monitored to the information in database 52.
Optionally, computer terminal 53 includes at least one of display, buzzer siren and alarm lamp.
In this application, a kind of crack variation monitoring method is additionally provided, using following crack change monitoring devices pair
Crack is monitored, and crack variation monitoring method includes: to be fixed on crack change monitoring device before fracture is monitored
On metope where crack, and it is fitted in the detection faces of the cabinet 10 of crack change monitoring device on metope, and become crack
Change extending direction of the scan path perpendicular to crack of the imaging sensor 20 of monitoring device；Open power supply, crack variation monitoring
Device carries out Initialize installation process automatically, by pre-set clock frequency, line-scanning period, scanning times, light source 30
Opening time and the relevant parameter of imaging sensor 20 call in the corresponding register in inside of imaging sensor 20, it is complete
At Initialize installation；Crack change monitoring device carries out the initial value test phase in crack, starts imaging sensor 20, makes image
Sensor 20 is scanned by the width of preset condition fracture, and the crack that result is stored in crack change monitoring device is become
In the first memory 411 for changing monitoring portion 40；The width that imaging sensor 20 continues fracture is scanned, and result is saved
In second memory 412 in crack variation monitoring portion 40；The calculation unit 42 in crack variation monitoring portion 40 is to the second memory
412 and first the data that save in memory 411 calculate, and result is issued into computer terminal 53, then crack variation prison
It surveys device and again proceeds to standby mode.
Further, after the original width in crack is measured, crack change monitoring device can be established with computer terminal 53
Liaison, issues computer terminal 53 for the code of the output device 50 of crack change monitoring device first, and computer terminal 53 is received
A confirmation message can be replied to crack change monitoring device after to the code of crack change monitoring device, after receiving confirmation message
The primary data in crack is issued computer terminal 53 again by output device 50.
Further, crack change monitoring device enters in routine work program, firstly, crack change monitoring device enters
The partial function of standby mode, crack change monitoring device can automatically power off, and the clock unit in crack variation monitoring portion 40 is automatic
It is clocked into state, after reaching third prefixed time interval, entire crack change monitoring device is restored to working condition, and image passes
Sensor 20 is scanned, and scan data is stored in the second memory 412.
Further, if the judgement of computer terminal 53 sends data exception, crack change monitoring device can be called at any time,
Crack change monitoring device can be again restored to working condition after receiving call signal, and carry out the width measurement in crack again,
And measurement result is issued to computer terminal 53 again.
In this application, it when new crack occurs in metope, can be also monitored with same method.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
1, by using crack change monitoring device, keep staff's concrete structure that do not need regularly to make a special trip to a certain place existing
, it also can regularly understand crack variable condition；
2, the process of Crack Detection operation is shortened；
3, it is settled accounts by difference, eliminates the noise element for reading the uneven and stained generation for including in data, make
The information of crack variation is more accurate；
4, the data volume transmitted is small, and maintenance cost is low.
Obviously, above-mentioned the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments should fall within the scope of the present invention.
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 application.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, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein is in addition to illustrating herein or retouching
Sequence other than those of stating is implemented.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (17)
1. a kind of crack change monitoring device characterized by comprising
Cabinet (10), the cabinet (10) have detection faces, and the detection faces fitting is arranged at position to be detected；
Fixed structure, the cabinet (10) are mounted at the position to be detected by the fixed structure and are kept fixed not
It is dynamic；
At least one imaging sensor (20), described image sensor (20) setting is in the cabinet (10) and described image passes
The test side of sensor (20) is arranged towards the detection faces；
Light source (30), light source (30) setting are arranged in the cabinet (10) and towards the detection faces, the light source
It (30) is multiple, and the two sides up and down of described image sensor (20) have been respectively provided at least the light source (30), it is described
Light source (30) irradiates metope and crack at the position to be detected, and described image sensor (20) acquires the metope and described
Brightness degree line at crack；
Crack variation monitoring portion (40), crack variation monitoring portion (40) is connect with described image sensor (20), described to split
It stitches variation monitoring portion (40) and described image sensor (20) collected described brightness etc. is received according to the first prefixed time interval
Grade line is simultaneously stored, and according to the second prefixed time interval by brightness degree line inlet wire described in any two groups of front and back compare with
The change width data in the crack at the position to be detected；
Output device (50), the output device (50) connect with crack variation monitoring portion (40), to pass through display, storage
Record, at least one mode alarmed are exported.
2. crack change monitoring device according to claim 1, which is characterized in that the cabinet (10) is transversely divided into dynamic
Power area and detection zone, the detection zone include acquisition zone and treatment region, and the treatment region be located at the acquisition zone top or
Lower section；Described image sensor (20) and the light source (30) are located at the acquisition zone, crack variation monitoring portion (40) position
In the treatment region, the crack change monitoring device includes battery group (43), and the battery group (43) is located at described dynamic
Power area simultaneously powers to described image sensor (20), the light source (30) and crack variation monitoring portion (40).
3. crack change monitoring device according to claim 2, which is characterized in that the crack change monitoring device also wraps
Switching circuit is included, the battery group (43) is powered to the switching circuit, described image sensor (20), the light source
(30), crack variation monitoring portion (40) and the output device (50) are connect with the switching circuit, the switching circuit
The starting or shutdown of the crack change monitoring device are controlled according to third preset time.
4. crack change monitoring device according to claim 1, which is characterized in that described image sensor (20) and described
Light source (30) is multiple, and multiple described image sensors (20) and multiple light sources (30) are successively alternately arranged setting,
Multiple described image sensors (20) connect with crack variation monitoring portion (40) respectively.
5. crack change monitoring device according to claim 1, which is characterized in that the resolution of described image sensor (20)
Rate is more than or equal to 200DPI.
6. crack change monitoring device according to claim 1, which is characterized in that the light source (30) is LED light source, institute
State LED light source transmitting visible light and/or black light.
7. crack change monitoring device according to any one of claims 1 to 6, which is characterized in that multiple line-scanning periods
The collected brightness value with the scan path of clock signal synchronization of interior described image sensor (20) changes to form the brightness
Grade line.
8. crack change monitoring device according to any one of claims 1 to 6, which is characterized in that the crack variation prison
Survey portion (40) includes:
Clock unit sets first preset time and second preset time and timing by the clock unit；
Data storage cell (41) receives described image sensor (20) collected described brightness degree line and is stored；
It calculates unit (42), the brightness degree line of described calculation unit (42) two groups of acquisitions any to front and back carries out difference meter
It calculates, to obtain the change width data in the crack at the position to be detected.
9. crack change monitoring device according to claim 8, which is characterized in that the data storage cell (41) includes
First memory (411) and the second memory (412), the first memory (411) record described image sensor (20) is just
The brightness degree line of secondary acquisition, the second memory (412) record described image sensor (20) are every in addition to first
The brightness degree line of secondary acquisition, the calculation unit (42) is to first memory (411) and second memory
(412) the brightness degree line carries out Difference Calculation, to obtain the change width in the crack at presently described position to be detected
Data.
10. crack change monitoring device according to any one of claim 1 to 6, which is characterized in that the output device
It (50) include radio control section (51), the radio control section (51) receives and sends the change width data in the crack.
11. crack change monitoring device according to claim 10, which is characterized in that radio control section (51) packet
It includes:
Wireless network (511)；
Wireless control ontology (512), the wireless control ontology (512) receive the data of the change width in the crack；
Antenna (513), the antenna (513) connect with the wireless control ontology (512), and the antenna (513) passes through
The change width data in the crack are sent out by the wireless network (511).
12. crack change monitoring device according to claim 10, which is characterized in that the output device (50) further includes
Database (52), the database (52) store the change width data in the crack that the radio control section (51) sends,
The change width data in the crack are analyzed in computer terminal (53), when the width in the crack in the database (52)
When spending delta data beyond early warning value, the computer terminal (53) issues prompt.
13. crack change monitoring device according to claim 12, which is characterized in that the computer terminal (53) includes aobvious
Show at least one of device, buzzer siren and alarm lamp.
14. a kind of crack variation monitoring method, which is characterized in that become using crack described in any one of claims 1 to 13
Change monitoring device fracture to be monitored, the crack variation monitoring method includes:
Before fracture is monitored, the crack change monitoring device is fixed on the metope where the crack, and make
The detection faces of the cabinet (10) of the crack change monitoring device are fitted on the metope, and fill the crack variation monitoring
Extending direction of the scan path for the imaging sensor (20) set perpendicular to the crack；
Power supply is opened, the crack change monitoring device carries out Initialize installation process automatically, by pre-set clock frequency
Rate, the line-scanning period, scanning times, the opening time of light source (30) and described image sensor (20) relevant parameter call in
Into the corresponding register in inside of described image sensor (20), Initialize installation is completed；
The crack change monitoring device carries out the initial value test phase in the crack, starts described image sensor (20),
It is scanned described image sensor (20) by width of the preset condition to the crack, and result is stored in the crack
In first memory (411) in the crack variation monitoring portion (40) of change monitoring device；
Described image sensor (20) continues to be scanned the width in the crack, and result is stored in the crack and is changed
In the second memory (412) of monitoring portion (40)；
The calculation unit (42) in crack variation monitoring portion (40) is to second memory (412) and first memory
(411) data saved in calculate, and result are issued computer terminal (53), and then the crack change monitoring device is again
It is secondary to proceed to standby mode.
15. variation monitoring method in crack according to claim 14, which is characterized in that
After the original width in the crack is measured, the crack change monitoring device can be established with the computer terminal (53)
The code of the output device (50) of the crack change monitoring device is issued the computer terminal (53) first by liaison,
The computer terminal (53) can reply after receiving the code of the crack change monitoring device to the crack change monitoring device
One confirmation message, receive the output device (50) after the confirmation message primary data in the crack is issued again it is described
Computer terminal (53).
16. variation monitoring method in crack according to claim 14, which is characterized in that
The crack change monitoring device enters in routine work program, firstly, the crack change monitoring device enter it is standby
The partial function of state, the crack change monitoring device can automatically power off, the clock list in crack variation monitoring portion (40)
Member is automatically into time status, and after reaching third prefixed time interval, the entire crack change monitoring device is restored to work
State, described image sensor (20) are scanned, and scan data is stored in second memory (412).
17. variation monitoring method in crack according to claim 14, which is characterized in that
If computer terminal (53) judgement sends data exception, the crack change monitoring device, institute can be called at any time
Working condition can be again restored to by stating after crack change monitoring device receives call signal, and carry out the width in the crack again
Measurement, and measurement result is issued to the computer terminal (53) again.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910157007.7A CN109946296A (en) | 2019-03-01 | 2019-03-01 | Crack change monitoring device and crack variation monitoring method |
| PCT/CN2019/079624 WO2020177165A1 (en) | 2019-03-01 | 2019-03-26 | Crack change monitoring device and crack change monitoring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910157007.7A CN109946296A (en) | 2019-03-01 | 2019-03-01 | Crack change monitoring device and crack variation monitoring method |
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| WO (1) | WO2020177165A1 (en) |
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