CN106595497A - Building surface crack real-time monitoring and early warning system and early warning method thereof - Google Patents
Building surface crack real-time monitoring and early warning system and early warning method thereof Download PDFInfo
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- CN106595497A CN106595497A CN201710058285.8A CN201710058285A CN106595497A CN 106595497 A CN106595497 A CN 106595497A CN 201710058285 A CN201710058285 A CN 201710058285A CN 106595497 A CN106595497 A CN 106595497A
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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
- G01B11/03—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring coordinates of points
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Abstract
The invention discloses a building surface crack real-time monitoring and early warning system and an early warning method thereof. The early warning system comprises markers arranged at the places of building surface cracks and deforming synchronously with the cracks, and a data acquisition system for collecting deformation data of the markers. The data acquisition system comprises M data acquisition devices, M being a positive integer. Each data acquisition device comprises a monitoring device. The monitoring devices are used for collecting the deformation data of the markers and are connected with a data processing terminal through a signal transceiver. The data processing terminal obtains change data of the building surface cracks according to the movement data of the markers and displays the change data. All devices are simple and easy to assemble and safe and easy to operate; and the system and method are not limited by weather and the geographical environment factors, and realize all-weather 24-hour real-time remote monitoring of monitoring points.
Description
Technical field
The present invention relates to a kind of fabrication surface crack early warning technology field, more particularly to a kind of building surface crack
Real-time system for monitoring and pre-warning and its method for early warning.
Background technology
The safety monitoring research of traditional fabrication surface crack mainly adopts artificial mechanism mode, including micrometer observation
Method, slit measurer etc..Traditional observation procedure is intuitively simple, but there is serious systematic error and random error, and by
In human problems, weather and geographic factor interference are highly prone to, it is impossible to repeat observation in a large number.Therefore conventional observation method is general
Store-through data precision it is poor, observation data it is few, be easily disturbed, data record paperyization is easily stained the problems such as.
The content of the invention
It is contemplated that at least solving technical problem present in prior art, a kind of building is especially innovatively proposed
Surface crack real-time system for monitoring and pre-warning and its method for early warning.
In order to realize the above-mentioned purpose of the present invention, the invention provides a kind of building surface crack Monitoring and forecasting system in real-time system
System, the system includes being arranged at building surface crack both sides and the synchronization-moving marker of body of wall, and for gathering mark
The data collecting system of thing mobile data；The data collecting system includes M data acquisition unit, and the M is positive integer；Institute
Data acquisition unit is stated including monitoring device, the monitoring device collection marker mobile data and by signal transceiver and number
It is connected according to processing terminal；The data processing terminal obtains the delta data in building surface crack according to marker mobile data
And show.
The image information of monitoring device collection crack change, the image information of collection is filtered noise by signal transceiver
After removing, data processing terminal process is sent to, change numerical value in crack to be measured is shown on data processing terminal.So as to realize data
High precision, observation data are more, be difficult to be disturbed, data record is difficult the advantage that is stained and is easy to preserve and contrast.
In the preferred embodiment of the present invention, also including warning device, warning device and data processing terminal phase
Even, when the delta data in building surface crack is more than or equal to given threshold, data processing terminal to warning device is sent out
Go out warning order, warning device sends alarm signal.Remind staff to note in time, the crack changing value of monitoring exceed or
Equal to given threshold.
In the preferred embodiment of the present invention, also including support and head, the monitoring device is arranged at head
On base, head base is arranged on support, and the information transmit-receive end of head base is by signal transceiver and data processing terminal
It is connected, data processing terminal controls head base motions to head base transmission of control signals.Data processing terminal can be passed through
Signal, the 360 ° of rotations of control head base and pitching are sent, monitoring device is adjusted optimally.Only need to be in VT-V10 models
Head base increase jacking system and can just realize the lifting of head base.
In the preferred embodiment of the present invention, the marker is horizontally disposed and for similar diagram in crack both sides
Shape.
In the preferred embodiment of the present invention, the marker is shaped as equilateral triangle.Take its triangle
Three summits, the calculating for being easy to the later stage is processed.
In the preferred embodiment of the present invention, fluorescent material is scribbled on the marker surface.At night
Can position carries out shooting, collecting data image.
In the preferred embodiment of the present invention, the monitoring device is Wireless High Definition night-vision camera.Clap
Take the photograph effect apparent, it is easy to which later stage calculating is processed.
The invention also discloses a kind of method for early warning of building surface crack real-time system for monitoring and pre-warning, the method for early warning
Comprise the following steps：
S1, chooses gap observation region to be measured, in fixed placement triangle marker in crack both sides to be measured on fabrication surface；
S2, sets observed range, and fixed wireless camera makes central area of the marker in camera gun, it is determined that
Related engineer's scale；
S3, according to data precision needs, sets the optimal filming frequency of camera；According to shooting angle needs, cloud is rotated
Platform base, adjustment camera lens are to optimal shooting and monitoring direction；
The view data for collecting is wirelessly transmitted to signal transceiver by S4, data collecting system；
S5, signal transceiver received and filtered after data, and effective image data are carried out signal amplification, by nothing
Line is sent to data processing terminal；
S6, data processing terminal calculates crack both sides in same camera shooting image after view data is received
The distance change of the corresponding N number of point of different triangle markers, the N is positive integer, and calculates fracture width change to be measured, is entered
The row data book of final entry and the change width curve in the different cracks of generation；
S7, data processing terminal compares the fracture width numerical value after process with given threshold, if being less than threshold value, continues to connect
It is subject to processing image information data；If than or equal to threshold value, early warning mechanism is triggered automatically, safety alarm is sent.
In the preferred embodiment of the present invention, in step s 6, when N takes 3, the calculating of fracture width change to be measured
Method is：
Wherein, dt→t+iFor the width that crack to be measured is changed by t to the t+i moment,WithFor t crack
The distance on corresponding three summits of both sides difference triangle,For t+i moment cracks both sides difference three
The distance on angular corresponding three summits；
Wherein,WithFor crack side triangle in the same image shot by camera of t
The coordinate on three summits of shape,WithFor crack phase in the same image shot by camera of t
The coordinate on adjacent side Atria summit；
Wherein,WithFor crack in t+i moment same image shot by camera
The coordinate on side Atria summit,WithFor t+i moment same camera
The coordinate on the adjacent side Atria summit in crack in shooting image.
In sum, as a result of above-mentioned technical proposal, the invention has the beneficial effects as follows：
(1) all Data Digitals are processed, and automated back-up is stored, it is easy to inquiry and analysis；
(2) not by weather and geogen restriction, round-the-clock 24 hours real-time remotes monitoring is realized to monitoring point；
(3) all devices be simply easily assembled, safety it is easy to operate；
(4) analyzed and processed by Computerized intelligent, reduce random error, improve monitoring accuracy；
(5) real-time early warning is realized, safety alarm is sent in time, effectively the loss of deduction and exemption crack disaster.
Description of the drawings
Fig. 1 is the system schematic of the present invention.
Fig. 2 is the structural representation of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " longitudinal direction ", " horizontal ", " on ", D score, "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " is based on accompanying drawing institute
The orientation for showing or position relationship, are for only for ease of the description present invention and simplify description, rather than indicate or imply the dress of indication
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the present invention limit
System.
In describing the invention, unless otherwise prescribed and limit, it should be noted that term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connected or electrical connection, or the connection of two element internals, can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
The invention provides a kind of real-time system for monitoring and pre-warning, as shown in Fig. 1～2, the system includes being arranged at building 4
The both sides of surface crack 5 and the synchronization-moving marker 6 of body of wall, and for gathering the data acquisition system of marker mobile data
System；Data collecting system includes M data acquisition unit 1, and M is positive integer；Data acquisition unit includes monitoring device 7, monitoring
Equipment 7 is gathered marker mobile data and is connected with data processing terminal 3 by signal transceiver 2；Data processing terminal according to
Marker mobile data obtains the delta data in building surface crack and shows.
In the preferred embodiment of the present invention, also including warning device, warning device and data processing terminal phase
Even, when the delta data in building surface crack is more than or equal to given threshold, data processing terminal to warning device is sent out
Go out warning order, warning device sends alarm signal.
In the preferred embodiment of the present invention, also including support and head, monitoring device 7 is arranged at head base
On 8, head base 8 is arranged on support 9, and support adopts tripod, the simple structure, is conducive to stablizing head base and saving
Material.The information transmit-receive end of head base is connected by signal transceiver with data processing terminal, and data processing terminal is to head
Base transmission of control signals, controls head base motions.
In the preferred embodiment of the present invention, marker is horizontally disposed and for similar fitgures in crack both sides.
In the present embodiment, similar fitgures include identical figure and the figure zoomed in or out by identical figure equal proportion, for example
Identical two points, identical two triangles, or a quadrangle differ 2 with another quadrangle equal proportion
Or 0.7 times.
In the preferred embodiment of the present invention, marker is shaped as equilateral triangle.In the present embodiment, mark
The shape for knowing thing can be with rectangle, square, rhombus or other shapes；For quadrangle when, take its four summits.
In the preferred embodiment of the present invention, fluorescent material is scribbled on marker surface.
In the preferred embodiment of the present invention, monitoring device is Wireless High Definition night-vision camera.
The invention discloses a kind of method for early warning of real-time system for monitoring and pre-warning, the method is comprised the following steps：
The first step, chooses gap observation region to be measured, in crack both sides fixed placement triangular sign to be measured on fabrication surface
Know thing；
Second step, sets observed range, and fixed wireless camera makes central area of the marker in camera gun,
It is determined that related engineer's scale；
3rd step, according to data precision needs, sets the optimal filming frequency of camera；According to shooting angle needs, turn
Dynamic head base, adjustment camera lens are to optimal shooting and monitoring direction；
The view data for collecting is wirelessly transmitted to signal transceiver by the 4th step, data collecting system；
5th step, signal transceiver received and filtered after data, and effective image data are carried out signal amplification, is led to
Wireless transceiver is crossed to data processing terminal；In the present embodiment, signal transceiver is filtered the data message for receiving
Remove noise and obtain effective image information, and data message is amplified so that image is more accurate, use existing
Technology, will not be described here.
6th step, data processing terminal calculates crack in same camera shooting image after view data is received
The distance change of the corresponding N number of point of both sides difference triangle marker, N is positive integer, and calculates fracture width change to be measured, is entered
The row data book of final entry and the change width curve in the different cracks of generation；In the present embodiment, when N takes 3, fracture width to be measured
The computational methods of change are：
Wherein, dt→t+iFor the width that crack to be measured is changed by t to the t+i moment,WithFor t crack
The distance on corresponding three summits of both sides difference triangle,For t+i moment cracks both sides difference triangle
The distance on corresponding three summits of shape；
Wherein,WithFor crack side triangle in the same image shot by camera of t
The coordinate on three summits of shape,WithFor crack phase in the same image shot by camera of t
The coordinate on adjacent side Atria summit；
Wherein,WithFor crack in t+i moment same image shot by camera
The coordinate on side Atria summit,WithFor t+i moment same camera
The coordinate on the adjacent side Atria summit in crack in shooting image.In the present embodiment, what is only calculated is crack both sides
The distance between three summits of correspondence equilateral triangle, seek its their mean value；Crack both sides equilateral triangle can also be calculated
The distance between correspondence arbitrfary point, seeks its mean value on three sides.
7th step, data processing terminal compares the fracture width numerical value after process with given threshold, if being less than threshold value, after
Continued access is subject to processing image information data；If than or equal to threshold value, early warning mechanism is triggered automatically, safety alarm is sent.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
These embodiments can be carried out with various changes, modification, replacement and modification in the case of the principle and objective that depart from the present invention, this
The scope of invention is limited by claim and its equivalent.
Claims (9)
1. a kind of building surface crack real-time system for monitoring and pre-warning, it is characterised in that including being arranged at building surface crack
Both sides and the synchronization-moving marker of body of wall, and for gathering the data collecting system of marker mobile data；
The data collecting system includes M data acquisition unit, and the M is positive integer；
The data acquisition unit includes monitoring device, and the monitoring device collection marker mobile data simultaneously passes through signal transmitting and receiving
Device is connected with data processing terminal；
The data processing terminal obtains the delta data in building surface crack and shows according to marker mobile data.
2. building surface crack according to claim 1 real-time system for monitoring and pre-warning, it is characterised in that also including warning
Device, warning device is connected with data processing terminal, when the delta data in building surface crack is more than or equal to setting threshold
During value, data processing terminal to warning device sends warning order, and warning device sends alarm signal.
3. building surface crack according to claim 1 real-time system for monitoring and pre-warning, it is characterised in that also including support
And head, the monitoring device is arranged on head base, and head base is arranged on support, the information transmit-receive end of head base
It is connected with data processing terminal by signal transceiver, data processing terminal controls head to head base transmission of control signals
Base motions.
4. building surface crack according to claim 1 real-time system for monitoring and pre-warning, it is characterised in that the marker
It is horizontally disposed and for similar fitgures in crack both sides.
5. the building surface crack real-time system for monitoring and pre-warning according to claim 1 or 4, it is characterised in that the mark
That knows thing is shaped as equilateral triangle.
6. building surface crack according to claim 1 real-time system for monitoring and pre-warning, it is characterised in that in the mark
Thing scribbles fluorescent material on surface.
7. building surface crack according to claim 1 real-time system for monitoring and pre-warning, it is characterised in that the monitoring sets
Standby is Wireless High Definition night-vision camera.
8. the method for early warning of building surface crack according to claim 1 real-time system for monitoring and pre-warning, it is characterised in that
Comprise the following steps：
S1, chooses gap observation region to be measured, in fixed placement triangle marker in crack both sides to be measured on fabrication surface；
S2, sets observed range, and fixed wireless camera makes central area of the marker in camera gun, it is determined that related
Engineer's scale；
S3, according to data precision needs, sets the optimal filming frequency of camera；According to shooting angle needs, rotary platform bottom
Seat, adjustment camera lens are to optimal shooting and monitoring direction；
The view data for collecting is wirelessly transmitted to signal transceiver by S4, data collecting system；
S5, signal transceiver received and filtered after data, and effective image data are carried out signal amplification, by wireless biography
Deliver to data processing terminal；
S6, data processing terminal calculates crack both sides in same camera shooting image different after view data is received
The distance change of the corresponding N number of point of triangle marker, the N is positive integer, and calculates fracture width change to be measured, enters line number
According to the book of final entry and the change width curve in the different cracks of generation；
S7, data processing terminal compares the fracture width numerical value after process with given threshold, if being less than threshold value, continues at acceptance
Reason image information data；If than or equal to threshold value, early warning mechanism is triggered automatically, safety alarm is sent.
9. the method for early warning of building surface crack according to claim 8 real-time system for monitoring and pre-warning, it is characterised in that
In step s 6, when N takes 3, the computational methods of fracture width change to be measured are：
Wherein, dt→t+iFor the width that crack to be measured is changed by t to the t+i moment,WithFor t crack both sides
The distance on corresponding three summits of different triangles,For t+i moment cracks both sides difference triangle
The distance on corresponding three summits；
Wherein,WithFor crack side Atria in the same image shot by camera of t
The coordinate on summit,WithFor the adjacent side in crack in the same image shot by camera of t
The coordinate on Atria summit；
Wherein,WithFor crack side in t+i moment same image shot by camera
The coordinate on Atria summit,WithShoot for t+i moment same camera
The coordinate on the adjacent side Atria summit in crack in image.
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| CN111536881A (en) * | 2020-05-09 | 2020-08-14 | 广东有色工程勘察设计院 | Crack automatic detector with camera |
| CN112215077A (en) * | 2020-09-14 | 2021-01-12 | 北京中铁建建筑科技有限公司 | Image recognition building structure crack monitoring system and method |
| CN112284260A (en) * | 2020-09-30 | 2021-01-29 | 深圳市北斗云信息技术有限公司 | Visual displacement monitoring method, equipment and system |
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