CN106895787B - Deformation monitoring system and method based on visible light location technology - Google Patents
Deformation monitoring system and method based on visible light location technology Download PDFInfo
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- CN106895787B CN106895787B CN201710108052.4A CN201710108052A CN106895787B CN 106895787 B CN106895787 B CN 106895787B CN 201710108052 A CN201710108052 A CN 201710108052A CN 106895787 B CN106895787 B CN 106895787B
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- visible light
- monitoring point
- deformation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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Abstract
The present invention provides a kind of deformation monitoring system based on visible light location technology, including signal control module, VISIBLE LIGHT EMISSION module, main detector, secondary detector and signal processing module；VISIBLE LIGHT EMISSION module is visible light source；Signal control module driving visible light source is lighted according to certain rules；There is monitoring point to be monitoredly, each monitoring point is equipped with main detector and secondary detector；Main detector includes photoelectric sensor, and secondary detector includes blacking shelter and the photodiode on blacking shelter；Signal processing module includes signal conditioning module, for judging whether monitoring point has the microprocessor of deformation.Light source required for the present invention is illuminated using itself is modulated, and corresponding detector is set in monitoring point, it only needs to carry out the output electric signal of each monitoring point processing you can get it monitoring point with the presence or absence of deformation, installs easy to implement and permanently effective, low in cost.
Description
Technical field
The invention belongs to visible light field of locating technology, and in particular to a kind of deformation monitoring system and side based on visible light
Method.
Background technique
In coal mine, it is the important channel for maintaining ground and underground mine roadway that cage guide, which is the vertical running track of mine,.
Cage guide can limit cage and all around swing as the guiding device run up and down in three-dimensional pit shaft, ensure that cage is smooth
Continuously orbit.However, silo coal tub way is easy to happen a degree of deflection and change in coal mine underground recovery process
Shape.Cage guide deformation gently then increases resistance, and rub cage shoe, influences to produce；It is heavy then card tank occurs, falls the major accidents such as tank, direct prestige
Coerce miner's life security.Have at present to the monitoring method of coal mine cage guide deformation: 1. artificial geometric measurement methods；2. shaft section measures
The profession measuring instrument such as instrument；3. the cage guide system for monitoring displacement based on laser ranging.
For manual measurement, this method needs staffing to carry out welding and fixation with steel wire, complicated for operation and to expend
A large amount of manpower and material resources, it is with high costs.And artificial disturbing factor is very big, measurement result limited accuracy.
Special instrument method is very high to instrument and operator's requirement, and inadequate intelligence of data procedures of its analysis test
Can, computational accuracy is lower, takes a long time, and needs a large amount of personnel to cooperate and completes.
The problem of cage guide system for monitoring displacement based on laser ranging is, the sample frequency of laser displacement sensor compared with
Low, apart from limited, applicability is limited for measurement, and equipment manufacturing cost is expensive, complex circuit, is not suitable for long-term work in the presence of a harsh environment.
In addition, in mine the frequent starting of high-power electrical equipment and power electronic devices, houlage network use so that
Downhole electromagnetic environment is more and more severe.Electromagnetic interference phenomenon caused by it can cause equipment, transmission channel or system performance decline,
As the critical issue for influencing downhole safety production.So under such a electromagnetic susceptibility environment, it is also difficult to use conventional electricity
Magnetic wave positioning means carry out monitoring.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of deformation monitoring system based on visible light location technology and side
Method, it is easy to implement and permanently effective, low in cost.
A kind of technical solution taken by the invention to solve the above technical problem are as follows: shape based on visible light location technology
Change monitoring system and method, it is characterised in that: it includes signal control module, VISIBLE LIGHT EMISSION module, main detector, secondary spy
Survey device and signal processing module；
The VISIBLE LIGHT EMISSION module is in several to be monitoredly uniformly distributed visible light sources；
The signal control module is used to that several described visible light sources to be driven to light according to certain rules, and same
Time, only one visible light source was lighted, and each visible light source lights one time as a cycle；
Several monitoring points are being distributed with to be monitoredly, one is equipped on each monitoring point described in main detector and one
A secondary detector；The main detector includes photoelectric sensor, and the secondary detector includes that blacking is blocked
Object and the photodiode on blacking shelter；
The signal processing module include for the electric signal of photoelectric sensor and photodiode to be amplified and
The signal conditioning module of analog-to-digital conversion, for judging whether monitoring point has deformation, monitoring point according to the electric signal after analog-to-digital conversion
The orientation of deformation and the microprocessor of deformation degree.
By above system, described is unloading can road inner wall to be monitored to be monitoredly, and it is in pair that the visible light source, which is 4,
Right-angled intersection is distributed on the horizontal cross-section of unloading can road inner wall to be monitored.
By above system, the visible light source is LED.
By above system, the signal control module is specifically used for driving 4 visible light sources and successively replaces point
It is bright.
By above system, the unloading can road inner wall to be monitored is quaternary formation bottom and basement rock the interface area 5m up and down
Domain.
By above system, at interval of 4cm2Monitoring point described in being arranged one.
The deformation monitoring method realized using the coal mine cage guide deformation monitoring system based on visible light, feature are existed
In: it the following steps are included:
S1, the driving signal timing issued according to signal control module, determine current visible light source, read each monitoring in real time
The electric signal of point photoelectric sensor and photodiode；
S2, by the electric signal of the photoelectric sensor currently read, compared with initial electrical signal under same state, if currently
The electric signal of reading is unchanged, judges that current cage guide is normal, if the electric signal of certain monitoring point photoelectric sensor changes,
Enabling the monitoring point is suspicious monitoring point, is further judged；The same state is the electricity with the photoelectric sensor currently read
The visible light source lighted when signal is identical, photoelectric sensor is identical；Initial electrical signal is that the cage guide that prestores obtains when normal
Electric signal；
S3, to judge whether the electric signal of suspicious monitoring point photodiode occurs identical as suspicious monitoring point photoelectric sensor
Or similar variation, the similar meaning are that trend is identical, variable quantity is in certain error range；If then entering
S4；If determining that deformation occurs for suspicious monitoring point without if, and time Jing Guo a cycle, analyze the suspicious monitoring point and
The relative position of each visible light source changes, to obtain the deformation orientation and deformation degree of suspicious monitoring point；
S4, the electric signal for obtaining suspicious monitoring point photoelectric sensor and photodiode described in N number of period, if obtaining
Electric signal recurrent fluctuations, then determine that visible light source is unstable；If the electric signal obtained is consistent, determine to be located at suspicious prison
Deformation occurs at the blacking shelter of measuring point.
The invention has the benefit that light source required for itself being illuminated using ground to be monitored is modulated, and monitoring
Corresponding detector is arranged in point, and when deformation occurs for monitoring point, the received optical signal of detector can change so as to cause defeated
Electric signal changes out, it is only necessary to carry out processing you can get it monitoring point with the presence or absence of becoming to the output electric signal of each monitoring point
Shape, installation is easy to implement and permanently effective, low in cost, is particularly suitable for coal mine, heavy industry workshop or other electromagnetic fields
The room area of serious interference.
Detailed description of the invention
Fig. 1 is the system principle schematic diagram of one embodiment of the invention.
Fig. 2 is the schematic diagram of signal processing module in Fig. 1.
Fig. 3 is the system scheme of installation of one embodiment of the invention.
Fig. 4 is the structural schematic diagram of secondary detector.
Fig. 5 is the method flow diagram of one embodiment of the invention.
Fig. 6 is the visible light source driving signal timing diagram of one embodiment of the invention.
In figure: 1- unloading can road inner wall to be monitored, the first visible light source of 2-1-, the second visible light source of 2-2-, 2-3- third can
Light-exposed source, the 4th visible light source of 2-4-, the monitoring point 3-, 3-1- blacking shelter, 3-2- photodiode.
Specific embodiment
Below with reference to specific example and attached drawing, the present invention will be further described.
The present invention provides a kind of deformation monitoring system and method based on visible light location technology, as depicted in figs. 1 and 2,
It includes signal control module, VISIBLE LIGHT EMISSION module, main detector, secondary detector and signal processing module；Described can
Light-exposed transmitting module is several visible light sources uniformly distributed on unloading can road inner wall to be monitored horizontal cross-section；The signal control
Module is for driving several described visible light sources to light according to certain rules, and only one visible light source point of same time
Bright, each visible light source lights one time as a cycle；Several monitoring points are distributed in unloading can road inner wall to be monitored, each
Secondary detector described in main detector described in being equipped with one on monitoring point and one；The main detector includes photoelectricity
Sensor, as shown in figure 4, the secondary detector includes blacking shelter 3-1 and the photoelectricity on blacking shelter 3-1
Diode 3-2；The signal processing module includes for amplifying the electric signal of photoelectric sensor and photodiode
With the signal conditioning module of analog-to-digital conversion, for according to the electric signal after analog-to-digital conversion judge monitoring point whether have deformation, monitoring
The orientation of point deformation and the microprocessor of deformation degree.
Practice have shown that, coal mine shaft lining well shaft destroyed position nearly all has a common boundary in quaternary formation bottom and basement rock according to a large amount of
Near face, so as shown in figure 3, unloading can road inner wall 1 to be monitored described in the present embodiment is quaternary formation bottom and basement rock
The region 5m above and below interface.Visible light source is 4 LED, i.e. the-the first visible light source 2-1, the second visible light source 2- in the present embodiment
2, third visible light source 2-3, the 4th visible light source 2-4 are distributed in right-angled intersection.At interval of 4cm2Prison described in being arranged one
Measuring point 3.
In the present embodiment, the signal control module is specifically used for driving 4 visible light sources and successively replaces point
It is bright, as shown in Figure 6.Signal control module includes microcontroller, isolation circuit and amplifying circuit in the present embodiment.Firstly, root
According to number of light sources and its Frequency Response, the delay time of the duty ratio for driving square-wave signal, frequency and each light source is determined.Secondly,
It writes driving signal code to be loaded into microcontroller, makes microcontroller P1.0-P1.3Four pins generate signal as shown in FIG. 6.
When microcontroller is started to work, four pins, which circuit sequentially, there is high level to drive four LED successively alternately to flash, and
Because flicker frequency is higher, normal illumination will not influence.Due to the difference of lighting timings, each LED light source can be distinguished from each other, therefore
And complete the ID number to light source.Main detector, secondary detector and its adjunct circuit have been all made of TEMT6000 environment light biography
Sensor module replaces.The analog quantity of ambient light sensor output is handled by A/D conversion chip and is passed to micro- place again for digital quantity
Manage device, analyzed with the processing of the complete pair signals of microprocessor, obtain current cage guide situation be " normal ", " deformation occurs " or
Result is finally fed back to staff by mining communication line by " flashing is fixed ".
In the present embodiment, blacking shelter 3-1 is blacking cube thin plate, and photodiode 3-2 is fixed on blacking cube
On body thin plate, blacking cube thin plate is drawn support rod by four angles and is fixed with tank skin, and main detector is arranged in blacking shelter
The underface of 3-1.With space geometry projection theory, in initial position, generation of the blacking shelter 3-1 under light source irradiation
Shade is not fallen on main detector photosurface, so will not weaken the detection to initial position visible light.And work as monitoring site
It sets when changing, the shadow surface of blacking shelter 3-1 can be incident upon on the photosurface of main detector, to amplify optical signal change
Change amplitude.Blacking shelter can amplify change in optical signal amplitude.Also, photodiode 3-2 is capable of providing aid in treatment letter
Number, expand monitoring inducing function.
As shown in figure 5, the deformation monitoring side realized using the coal mine cage guide deformation monitoring system based on visible light
Method, it the following steps are included:
S1, the driving signal timing issued according to signal control module, determine current visible light source, read each monitoring in real time
The electric signal of point photoelectric sensor and photodiode；
S2, by the electric signal of the photoelectric sensor currently read, compared with initial electrical signal under same state, if currently
The electric signal of reading is unchanged, judges that current cage guide is normal, if the electric signal of certain monitoring point photoelectric sensor changes,
Enabling the monitoring point is suspicious monitoring point, is further judged；The same state is the electricity with the photoelectric sensor currently read
The visible light source lighted when signal is identical, photoelectric sensor is identical；Initial electrical signal is that the cage guide that prestores obtains when normal
Electric signal；
S3, to judge whether the electric signal of suspicious monitoring point photodiode occurs identical as suspicious monitoring point photoelectric sensor
Or similar variation, the similar meaning are that trend is identical, variable quantity is in certain error range；If then entering
S4；If determining that deformation occurs for suspicious monitoring point without if, and time Jing Guo a cycle, analyze the suspicious monitoring point and
The relative position of each visible light source changes, to obtain the deformation orientation and deformation degree of suspicious monitoring point；
S4, the electric signal for obtaining suspicious monitoring point photoelectric sensor and photodiode described in N number of period, if obtaining
Electric signal recurrent fluctuations, then determine that visible light source is unstable；If the electric signal obtained is consistent, determine to be located at suspicious prison
Deformation occurs at the blacking shelter of measuring point.
Based on the above embodiment, the coal mine cage guide deformation monitoring system based on visible LED has following three process: 1. is logical
It crosses signal control module and ID number is carried out to LED, and visible light is issued by VISIBLE LIGHT EMISSION module and is illuminated for cage guide；2. main spy
It surveys device and secondary detector converts electric signal for the optical signal of sensing point in real time and is used to handle；3. signal processing module completion pair
The analysis of entire cage guide situation simultaneously feeds back to staff.
Herein only by taking unloading can road inner wall to be monitored as an example, the present invention could be applicable to other places for needing to monitor deformation,
Based on the present invention, utilize is visible light, and anti-electromagnetic interference capability is strong, and present invention is particularly suitable for the deformation in electromagnetic susceptibility area prisons
It surveys.
Above embodiments are merely to illustrate design philosophy and feature of the invention, and its object is to make technology in the art
Personnel can understand the content of the present invention and implement it accordingly, and protection scope of the present invention is not limited to the above embodiments.So it is all according to
It is within the scope of the present invention according to equivalent variations made by disclosed principle, mentality of designing or modification.
Claims (7)
1. a kind of deformation monitoring system based on visible light location technology, it is characterised in that: it includes signal control module, visible
Optical transmitter module, main detector, secondary detector and signal processing module；
The VISIBLE LIGHT EMISSION module is in several to be monitoredly uniformly distributed visible light sources；
The signal control module is for driving several described visible light sources to light according to certain rules, and the same time
Only one visible light source is lighted, and each visible light source lights one time as a cycle；
Several monitoring points are being distributed with to be monitoredly, one is equipped on each monitoring point described in main detector and an institute
The secondary detector stated；The main detector includes photoelectric sensor, the secondary detector include blacking shelter and
Photodiode on blacking shelter；
The signal processing module includes for amplifying and modulus the electric signal of photoelectric sensor and photodiode
The signal conditioning module of conversion, for judging whether monitoring point has deformation, monitoring point deformation according to the electric signal after analog-to-digital conversion
Orientation and deformation degree microprocessor.
2. the deformation monitoring system according to claim 1 based on visible light location technology, it is characterised in that: it is described to
Monitoring ground is unloading can road inner wall to be monitored, and the visible light source is 4, is distributed in unloading can road to be monitored in right-angled intersection
On the horizontal cross-section of wall.
3. the deformation monitoring system according to claim 1 based on visible light location technology, it is characterised in that: described can
Light-exposed source is LED.
4. the deformation monitoring system according to claim 2 based on visible light location technology, it is characterised in that: the letter
Number control module is specifically used for driving 4 visible light sources and successively alternately lights.
5. the deformation monitoring system according to claim 2 based on visible light location technology, it is characterised in that: it is described to
Monitoring unloading can road inner wall is quaternary formation bottom and basement rock the interface region 5m up and down.
6. the deformation monitoring system according to claim 1 based on visible light location technology, it is characterised in that: at interval of
4cm2Monitoring point described in being arranged one.
7. the deformation monitoring method realized using the deformation monitoring system described in claim 1 based on visible light location technology,
It is characterized by: it the following steps are included:
S1, the driving signal timing issued according to signal control module, determine current visible light source, read each monitoring point light in real time
The electric signal of electric transducer and photodiode；
S2, by the electric signal of the photoelectric sensor currently read, compared with initial electrical signal under same state, if current read
Electric signal it is unchanged, judge that current landform is normal, if the electric signal of certain monitoring point photoelectric sensor changes, enable should
Monitoring point is suspicious monitoring point, is further judged；The same state is the electric signal with the photoelectric sensor currently read
When the visible light source lighted is identical, photoelectric sensor is identical；Initial electrical signal is the telecommunications obtained when the landform that prestores is normal
Number；
S3, judge whether the electric signal of suspicious monitoring point photodiode occurs or phase identical as suspicious monitoring point photoelectric sensor
As change, the similar meaning be trend it is identical, variable quantity is in certain error range；If then entering S4；If
Nothing then determines that deformation occurs for suspicious monitoring point, and the time Jing Guo a cycle, analyzes the suspicious monitoring point and respectively may be used
The relative position in light-exposed source changes, to obtain the deformation orientation and deformation degree of suspicious monitoring point；
S4, the electric signal for obtaining suspicious monitoring point photoelectric sensor and photodiode described in N number of period, if the electricity obtained
Signal recurrent fluctuations then determines that visible light source is unstable；If the electric signal obtained is consistent, determine to be located at suspicious monitoring point
Blacking shelter at deformation occurs.
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| CN111609803B (en) * | 2020-06-08 | 2021-12-17 | 霍州煤电集团有限责任公司辛置煤矿 | Coal mine vertical shaft cage guide distance detection device and method capable of extracting textures and colors |
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| CN101408410A (en) * | 2008-10-28 | 2009-04-15 | 山东科技大学 | Tunnel volume element deformation movable monitoring system and method |
| CN101458069A (en) * | 2008-12-30 | 2009-06-17 | 中铁二十四局集团福建铁路建设有限公司 | Tunnel wall rock deformation monitoring method and monitoring system thereof |
| CN201680823U (en) * | 2010-05-21 | 2010-12-22 | 中国矿业大学 | Dynamic measuring device for roadway surrounding rock deformation |
| CN201811722U (en) * | 2010-10-13 | 2011-04-27 | 中铁二十四局集团有限公司 | Tunnel surrounding rock deformation monitoring and alarm device |
| CN103017673A (en) * | 2012-12-26 | 2013-04-03 | 中铁二十四局集团有限公司 | Real-time continuous monitoring alarming method for tunnel surrounding rock deformation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2378242B (en) * | 2001-06-26 | 2005-08-03 | Univ Hull | Depth and concentration estimation |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408410A (en) * | 2008-10-28 | 2009-04-15 | 山东科技大学 | Tunnel volume element deformation movable monitoring system and method |
| CN101458069A (en) * | 2008-12-30 | 2009-06-17 | 中铁二十四局集团福建铁路建设有限公司 | Tunnel wall rock deformation monitoring method and monitoring system thereof |
| CN201680823U (en) * | 2010-05-21 | 2010-12-22 | 中国矿业大学 | Dynamic measuring device for roadway surrounding rock deformation |
| CN201811722U (en) * | 2010-10-13 | 2011-04-27 | 中铁二十四局集团有限公司 | Tunnel surrounding rock deformation monitoring and alarm device |
| CN103017673A (en) * | 2012-12-26 | 2013-04-03 | 中铁二十四局集团有限公司 | Real-time continuous monitoring alarming method for tunnel surrounding rock deformation |
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