A kind of reservoir dam deformation monitoring method and system
Technical field
The present invention relates to a kind of reservoir dam monitoring method and device, specifically a kind of reservoir dam deformation monitoring side
Method and system.
Background technology
Reservoir dam is engineering project common in hydraulic engineering construction, and concrete dam and stone masonry dam build up water-retention utilization
Afterwards, under the effect such as water, silt, wave, uplift pressure, temperature and earthquake, necessarily deform, seriously cause to subside, case is not
Victory is enumerated.Therefore, dam safety monitoring technology is international concern problem.
Dam structure safety monitoring system is related to multiple ambits such as optics, sensor, electronics, two ranks of development experience
Section:
1st, stage (1891~1964 years), also referred to as prototype measurement are observed.Because the level monitoring in the stage is relatively low, simply right
The monitoring instrument being placed on dam structure carries out manual observation and monitoring, records dam real-time status.
2nd, the stage (nineteen sixty-five is so far) of security viewpoint direction finding safety monitoring transformation and development.Gradually anticipate in domestic external monitor field
Know the limitation of instrument monitoring, just dam is adopted and is manually patrolled in combination with Instrument observation.Wherein Japan, the U.S. are earliest
The country of walkaround inspection is carried out, also all regulation must be carried out to dam for the country such as subsequently French, Canada of Italy and Norway
Manual inspection, so as to effectively avoid the defect for only carrying out safety monitoring to dam with observation instrument.But due to artificial inspection
The change on dam surface can only be observed, and the labyrinth change and potential safety hazard to its inside is difficult to distinguish, it is therefore necessary to
A kind of monitoring technology that can at any time, everywhere, in time, efficiently reflect and monitor dam safety issuess of invention.The later stage sixties,
External many countries are studied and are manufactured to the instrument and equipment of monitoring dam safety automatically:Japan is realized first on arch dam
Automatic data collection is carried out to Monitoring Data;Afterwards, Italy successively realizes plumb instrument deformation auto-monitoring and centralized collection number
According to system;1989, Canada was possible to carry out automatization's prison of the functions such as data acquisition, storage, process, long-range and analysis
Examining system is arranged on dam.China starts to carry out monitoring to dam deformation from the eighties, also have developed distributed intelligence monitoring
Data collecting system, wireless communication module and safeguard the software system of dam network safety information.
At present dam deformation is monitored in the world and adopt two ways:
1st, according to basic point elevation and position, using theodolite, level gauge, electronic distance meter or laser collimator, GPS, intelligence
Can total powerstation etc. measuring elevation and change in location at dam body surface monument, surveyor's beacon.The three-D displacement data of achievable measuring point are surveyed
Amount;
2nd, the instrument of some monitoring displacements is installed or buried on dam body surface, is typically only capable to measure the individual event displacement number of measuring point
According to (horizontal displacement or vertical displacement).Conventional displacement monitoring instrument has displacement meter, crack gauge, dipmeter, sedimentometer, vertical line to sit
Mark instrument, tensile-line instrument, multipoint displacement meter and strain gauge etc..
For deformation monitoring equipment, from the perspective of from several respects such as precision, stability, installing engineering amount, maintenance, prices, can be full
The equipment of sufficient requirements does not almost have.Dam body internal displacement monitoring can only use traditional individual event displacement monitoring equipment, need
Pre-plugged or drilling is wanted to install, construction inconvenience, the alternative method that there is presently no;Three dimensions that dam body surface displacement is used
According to monitoring device is easy for installation, stable performance, high precision, but affected greatly by geographical environment, mounting condition is restricted, and cost
It is high.
Thus, research and develop one kind is not affected by geographical environment, and response time is fast, and certainty of measurement is high, is capable of achieving self calibration, is easy to
Realize that the dam deformation automatic monitoring system of intelligent digitalized management is significant.But, for many years, China's reservoir dam displacement prison
Survey is in personal monitoring's stage, and on-line monitoring had simply just just developed in recent years.With regard to displacement monitoring equipment itself, although planting
Class is a lot, but every kind of equipment has its weak point, from several sides such as precision, stability, installing engineering amount, maintenance, use, prices
Face is investigated, and the equipment that can meet requirements is little.Dam body internal displacement monitoring can only use traditional individual event displacement monitoring
Equipment, needs pre-plugged or drilling to install, and construction inconvenience there is presently no good alternative method;Dam body surface displacement makes
Three-dimensional data monitoring device is easy for installation, stable performance, high precision, but affected greatly by geographical environment, mounting condition is subject to
Limit, and such home-made equipment rate is low, installation cost is high.
The content of the invention
For above-mentioned deficiency, the invention provides a kind of reservoir dam deformation monitoring method and system, it can not only have
The depression and horizontal displacement of effect monitoring reservoir dam, and monitoring device mechanism is simple, facilitates installation.
The present invention solves its technical problem and adopts the technical scheme that:A kind of reservoir dam deformation monitoring method, it includes
Procedure below:
1) reservoir dam deformation monitoring device is set
Choose dam body outer indeformable place and laser beam emitting device is installed, multiple datum mark monitoring dresses are installed on dam body
Put, described datum mark monitoring device with laser beam emitting device on the same line and positioned at the same side of laser beam emitting device,
Laser beam emitting device launch collimated laser light to each datum mark monitoring device light barrier when formed a circular light spot;
2) the initial circular light spot image of each datum mark is obtained
The generating laser power supply for being first turned on laser beam emitting device launches collimation laser to datum mark monitoring device, so
The light barrier of each datum mark monitoring device is set to shelter from laser route and shoot the circle that laser is formed on light barrier successively afterwards
Shape hot spot, finally carries out the initial circular hot spot of each datum mark storing after image procossing;
3) reservoir dam deformation monitoring is carried out
31) the logical wireless communication mode of master control system sends monitoring order to laser beam emitting device, and laser beam emitting device is received
After order, generating laser power supply is opened, and controls the light hole controlling organization of laser side and opened, sent out to datum mark monitoring device
Project collimation laser;
32) the logical wireless communication mode of computer sends monitoring order, first benchmark to first datum mark monitoring device
Point monitoring device is received after order, opens the light hole towards laser beam emitting device side, and now laser is irradiated to first base
Form circular light spot, first datum mark monitoring device on the interior dorsad light barrier of laser beam emitting device side of monitoring device on schedule
Controller control camera head carry out circular light spot image acquisition, image processing apparatus are carried out to the circular light spot image for gathering
It is sent to controller after image procossing, controller is carried out point to collection circular light spot image during monitoring and initial circular light spot image
Analysis processes and calculates the depression and horizontal displacement of the datum mark, the reservoir dam data is activation master control system that controller will be monitored
System, master control system received and shown after Monitoring Data;After the completion of first datum mark monitoring, master control system is to first benchmark
Point monitoring device sends monitoring and completes order, and first datum mark monitoring device receives monitoring and complete to open dorsad laser after order
The light hole of discharger side;
33) according to step 32) remaining datum mark is monitored successively, till the monitoring of all datum marks is completed;
34) master control system sends monitoring and finishes order to laser beam emitting device and all datum mark monitoring devices, and laser is sent out
Injection device receives monitoring and finishes closing generating laser power supply after order, and each datum mark monitoring device receives monitoring and finishes order
After close light hole.
Preferably, the datum mark monitoring device is arranged on several equidistant datum marks, and several are equidistant
Datum mark is located on the ray with laser beam emitting device as end points.
Preferably, camera head is sent to image processing apparatus, image processing apparatus by laser circular light spot picture is shot
The process for carrying out image procossing is comprised the following steps:
1) the laser circular light spot picture of shooting is carried out into image conversion, from 24 RGB images 8 gray-scale maps is converted into
Picture;
2) edge of circular light spot is detected using Canny edge detection algorithms;
3) the different circle in multiple radiuses, the center of circle is found using hough-circle transform;
4) change Hough transformation sequence, divide rule equally, find unique circle;
5) central coordinate of circle of circular light spot is got.
Preferably, the process for calculating depression and the horizontal displacement of datum mark is:Circular light spot image will be gathered during monitoring
The central coordinate of circle of central coordinate of circle and initial circular light spot image carry out computing to calculate the depression and horizontal displacement of datum mark,
The central coordinate of circle for assuming the initial circular light spot image of n-th datum mark is (X1, Y1), carries out being adopted when n-th datum mark is monitored
The central coordinate of circle of collection circular light spot image is (X2, Y2), then the side-play amount of n-th datum mark horizontal displacement is W=(X2-X1) K,
The displacement of n-th datum mark depression is H=(Y1-Y2) K, wherein, (X1, Y1) and (X2, Y2) is Circle in Digital Images imago vegetarian refreshments
Position coordinateses, the ratio that K is actual range with this section of actual range pixel number in the picture.
Present invention also offers a kind of reservoir dam DEFORMATION MONITORING SYSTEM, it includes that laser beam emitting device, datum mark are monitored
Device and master control system, the laser beam emitting device is arranged on one end of dam body, to launch collimation laser, as benchmark
Line;Several equidistant datum marks are set on the ray with laser beam emitting device as end points, and in each datum mark punishment
Not She Zhi a datum mark monitoring device, to be monitored to dam body depression and horizontal displacement;The master control system passes through nothing
Line communication modes are connected respectively with laser beam emitting device and datum mark monitoring device, monitor to send monitoring order and acceptance
Data, and process is analyzed to Monitoring Data.
Preferably, the laser beam emitting device includes emitter housing, mission controller, generating laser and laser via
Switching mechanism, the emitter housing one side is provided with laser via, and the generating laser is arranged in emitter housing
The position of correspondence laser via, is provided with laser via switching mechanism, institute on the medial wall at emitter housing laser via
State mission controller to be connected with generating laser and laser via baffle mechanism respectively;The laser via switching mechanism includes solid
The supporting plate being scheduled on emitter case inside wall, in supporting plate one end the light hole correspondingly sized with laser via is provided with,
The supporting plate other end is provided with horizontal orbit hole, orbit hole and light hole UNICOM, in supporting plate near emitter housing sidewall
Side is provided with chute, and the shutter for moving left and right is provided with chute, and the back of blocking is provided with an orbit hole left side
The tooth bar for moving right, the tooth bar is engaged with gear on the rotary shaft is arranged, the upper end of the rotary shaft be fixed on support
The output shaft connection of the motor on plate, the lower end of rotary shaft is arranged in the bearing block being fixed on supporting plate, in support
The position of plate or so two ends correspondence tooth bar shift motion is respectively arranged with a limit switch;Drawing is additionally provided with the supporting plate
Formula electric magnet, when shutter blocks light hole and laser via, the stopper of pull-type electric magnet falls in tooth bar away from light hole
One end;The outfan of the limit switch is connected with mission controller, and control end and the mission controller of the motor connect
Connect, the control end of the pull-type electric magnet is connected with mission controller.
Preferably, the shutter is abutted against on emitter case inside wall away from the one side of supporting plate;The emitter
Housing is waterproof case;The shutter adopts polyethylene board.
Preferably, the mission controller is connected including STM32F107 single-chip microcomputers and respectively with STM32F107 single-chip microcomputers
Power module, GPRS module, RS485 circuits, clock circuit, radio frequency chip, memorizer, limit switch input isolation electricity
Road, stepper motor driving circuit, control circuit for electromagnet and generating laser power control circuit;Limit switch input every
It is connected with the outfan of limit switch from circuit;The stepper motor driving circuit is connected with the control end of motor, described
Control circuit for electromagnet is connected with the control end of pull-type electric magnet;The memorizer adopts AT24C02 storage chips.
Preferably, the datum mark monitoring device includes that monitor housing, camera head, image processing apparatus, first are led to
Hole switching mechanism, the second through hole switching mechanism and monitor controller, the corresponding two sides of the monitor housing are respectively arranged with
Through hole, the camera head is arranged in monitor housing top position between two through holes, in two through holes of monitor housing
First through hole switching mechanism and the second through hole switching mechanism, described image processing meanss and prison are respectively arranged with the medial wall at place
Survey controller to be arranged in monitor housing, the camera head is connected with image processing apparatus, the monitor controller difference
It is connected with image processing apparatus, first through hole switching mechanism and the second through hole switching mechanism;Described first through hole switching mechanism
Include being fixed on supporting plate on monitor case inside wall with the second through hole switching mechanism, supporting plate one end be provided with
The correspondingly sized light hole of through hole, the supporting plate other end is provided with horizontal orbit hole, orbit hole and light hole UNICOM, in support
Plate is provided with chute near monitor housing sidewall side, and the light barrier for moving left and right, the light barrier are provided with chute
The back side is provided with the tooth bar moved left and right in orbit hole, and the tooth bar is engaged with the gear for arranging on the rotary shaft, the rotation
The upper end of axle is connected with the output shaft of the motor being fixed on supporting plate, and the lower end of rotary shaft is arranged on and is fixed on supporting plate
On bearing block in, at supporting plate or so two ends, the position of correspondence tooth bar shift motion is respectively arranged with a limit switch;Institute
State and be additionally provided with supporting plate pull-type electric magnet, the stopper of pull-type electric magnet falls when light barrier blocks light hole and through hole
The one end of tooth bar away from light hole;The outfan of the limit switch is connected with monitor controller, the control of the motor
End is connected with monitor controller, and the control end of the pull-type electric magnet is connected with monitor controller.
Preferably, the light barrier is abutted against on monitor case inside wall away from the one side of supporting plate;The monitor
Housing is waterproof case;The light barrier adopts polyethylene board;The camera head adopts OV2640 photographic head.
Preferably, the monitor controller includes STM8L151 single-chip microcomputers, image monitoring power control circuit, less radio-frequency
Communication module, wireless module power control circuit, vibrating sensor, drive circuit and power module, the STM8L151 monolithics
Machine is connected by UART communicating circuit circuits with image processing apparatus, described image monitoring power control circuit respectively with
STM8L151 single-chip microcomputers and image processing apparatus connect, and the wireless radio-frequency communication module is connected with STM8L151 single-chip microcomputers, institute
State wireless module power control circuit to be connected with STM8L151 single-chip microcomputers, wireless radio-frequency communication module and power module respectively, institute
State vibrating sensor to be arranged on monitor housing and be connected with STM8L151 single-chip microcomputers, the power module and STM8L151 monolithics
Machine connects.
Preferably, described image processing meanss include that processor, SD card, AT24C04 memorizeies, DDR3SDRAM, USB connect
Mouth, 24MHz crystal oscillators, RJ45 network interfaces, commissioning serial ports and STM8L communication serial ports, the processor adopts four core Cortex-A7
CPU, described SD card, AT24C04 memorizeies, DDR3SDRAM, USB interface, 24MHz crystal oscillators, RJ45 network interfaces, commissioning serial ports
It is connected with four core Cortex-A7 CPU respectively with STM8L communication serial ports, the USB interface is connected with OV2640 photographic head.
Preferably, the power module includes solar panel, charging device and lithium battery, the solar panel
Monitor case top is arranged on, the charging device and lithium battery are arranged in monitor housing, the charging device difference
It is connected with solar panel and lithium battery, the lithium battery provides working power for monitor controller.
Preferably, the wireless radio-frequency communication module includes SX1278 wireless chips and crystal oscillator, and the SX1278 is without core
Piece is connected by SPI interface with STM8L151 single-chip microcomputers, the crystal oscillator and wireless module power control circuit respectively with SX1278
Wireless chip is connected.
Preferably, the master control system include computer system and the master control wireless radio-frequency communication module that is attached thereto and
GPRS module, the computer system is monitored respectively by master control wireless radio-frequency communication module with laser beam emitting device and datum mark
Device is connected, and is connected with host computer and management terminal by GPRS module.
Preferably, the GPRS module includes SIM800C modules, SIM and MIC29302 chips, the SIM800C moulds
Block is connected respectively with STM32F107 single-chip microcomputers and power module, and the SIM is arranged in the draw-in groove of SIM800C modules, described
The control end of MIC29302 chips is connected with computer system.
The invention has the beneficial effects as follows:
Depression and water of the reservoir dam deformation monitoring method of the present invention by one dimensional image identification dam body each datum mark
Flat misalignment, can easily calculate whole reservoir dam depression and situation about moving horizontally, and not only realize to dam
Body depression and the automatic monitoring function of horizontal displacement, and improve the certainty of measurement of reservoir dam, reduce monitoring cost.
The reservoir dam DEFORMATION MONITORING SYSTEM of the present invention uses laser as benchmark, using high-definition camera and ARM process
Device shooting image and to image procossing, by being optimized to hough-circle transform algorithm, determines the home position of Circle in Digital Images speckle,
According to current home position and the position versus of last time measurement, side-play amount is calculated, so that it is determined that depression and horizontal displacement.This
The laser power of bright employing is little, high precision, and the monitoring device mechanism for using is simple, facilitates installation, and the system hardware
Cost is very low and reliability is high.
The reservoir dam DEFORMATION MONITORING SYSTEM of the present invention can carry out depression and monitor automatically with horizontal displacement to reservoir dam,
Not only product cost is low, certainty of measurement is high, stable performance, and it is easy for installation, by geographical environment affected greatly, maintenance cost it is low,
It is practical.Emitter housing and monitor housing are realized by arranging through hole switching mechanism and laser via switching mechanism
Through hole and laser via are opened and closed automatically, and shutter is processed into using polyethylene board in through hole switching mechanism, cost compared with
Low, durable anticorrosive, and not modification, monitor controller is constituted using the STM8L single-chip microcomputers of super low-power consumption, and power consumption is relatively low, entirely
System meets actual field requirement.When reservoir dam monitoring is carried out, present invention control through hole switching mechanism is automatically by monitor
The through hole and laser via of housing and emitter housing is opened, and makes laser through light hole and through hole;When monitoring is completed, control
Through hole switching mechanism is automatically switched off light hole and through hole, prevents dust, rainwater etc. from entering in housing, not only reduces artificial ginseng
With, cost has been saved, and accomplished the purpose monitored at any time.
Description of the drawings
Fig. 1 is method of the present invention flow chart;
Fig. 2 is the structure of reservoir dam deformation monitoring device of the present invention and arranges schematic diagram;
Fig. 3 is the image schematic diagram shot before and after the monitoring of n-th datum mark;
Fig. 4 is the image schematic diagram shot before and after the monitoring of n-th datum mark;
Fig. 5 is the structural representation of emitter housing of the present invention;
Fig. 6 is the internal structure schematic diagram of emitter housing of the present invention;
Fig. 7 is the structural representation of through hole switching mechanism of the present invention (supporting plate deviates from housing sidewall side);
Fig. 8 is the structural representation of through hole switching mechanism of the present invention (supporting plate is near housing sidewall side);
Fig. 9 is the electrical schematic diagram of mission controller of the present invention;
Figure 10 is the structural representation of monitor housing of the present invention;
Figure 11 is the internal structure schematic diagram of monitor housing of the present invention;
Figure 12 is the electrical schematic diagram of monitor controller of the present invention;
Figure 13 is the electrical schematic diagram of image processing apparatus of the present invention;
In Fig. 5 and Fig. 6,41 is emitter housing, and 42 is laser via, and 43 is generating laser, and 44 is mission controller,
45 is laser via switching mechanism;
In Fig. 7 and Fig. 8,501 is supporting plate, 502 is light hole, 503 is orbit hole, 504 is chute, 505 is shutter
(light barrier), 506 be tooth bar, 507 be rotary shaft, 508 be gear, 509 be motor, 510 be bearing block, 511 and 512 be
Limit switch, 513 are pull-type electric magnet.
In Figure 10 and Figure 11,21 is monitor housing, and 22 is through hole, and 23 is camera head, and 24 is image processing apparatus, 25
For first through hole switching mechanism, 26 is the second through hole switching mechanism, and 27 is monitor controller.
Specific embodiment
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the part and setting of specific examples are described.Additionally, the present invention can be in different examples
Middle repeat reference numerals and/or letter.This repetition is for purposes of simplicity and clarity, itself not indicate discussed various
Relation between embodiment and/or setting.It should be noted that part illustrated in the accompanying drawings is not drawn necessarily to scale.This
It is bright to eliminate the description to known assemblies and treatment technology and process to avoid being unnecessarily limiting the present invention.
As shown in figure 1, a kind of reservoir dam deformation monitoring method of the present invention, it includes procedure below:
1) reservoir dam deformation monitoring device is set
As shown in Fig. 2 choosing the outer indeformable place of dam body installs laser beam emitting device, multiple benchmark are installed on dam body
Point monitoring device, described datum mark monitoring device is with laser beam emitting device on the same line and positioned at laser beam emitting device
The same side, datum mark monitoring device is arranged on several equidistant datum marks, several equidistant datum marks be located at
Laser beam emitting device is on the ray of end points;Laser beam emitting device launches collimated laser light to each datum mark monitoring device
Light barrier when formed a circular light spot.
2) the initial circular light spot image of each datum mark is obtained
The generating laser power supply for being first turned on laser beam emitting device launches collimation laser to datum mark monitoring device, so
The light barrier of each datum mark monitoring device is set to shelter from laser route and shoot the circle that laser is formed on light barrier successively afterwards
Shape hot spot, finally carries out the initial circular hot spot of each datum mark storing after image procossing.
3) reservoir dam deformation monitoring is carried out
31) the logical wireless communication mode of master control system sends monitoring order to laser beam emitting device, and laser beam emitting device is received
After order, generating laser power supply is opened, and controls the light hole controlling organization of laser side and opened, sent out to datum mark monitoring device
Project collimation laser;
32) the logical wireless communication mode of computer sends monitoring order, first benchmark to first datum mark monitoring device
Point monitoring device is received after order, opens the light hole towards laser beam emitting device side, and now laser is irradiated to first base
Form circular light spot, first datum mark monitoring device on the interior dorsad light barrier of laser beam emitting device side of monitoring device on schedule
Controller control camera head carry out circular light spot image acquisition, image processing apparatus are carried out to the circular light spot image for gathering
It is sent to controller after image procossing, controller is carried out point to collection circular light spot image during monitoring and initial circular light spot image
Analysis processes and calculates the depression and horizontal displacement of the datum mark, the reservoir dam data is activation master control system that controller will be monitored
System, master control system received and shown after Monitoring Data;After the completion of first datum mark monitoring, master control system is to first benchmark
Point monitoring device sends monitoring and completes order, and first datum mark monitoring device receives monitoring and complete to open dorsad laser after order
The light hole of discharger side;
33) according to step 32) remaining datum mark is monitored successively, till the monitoring of all datum marks is completed;
34) master control system sends monitoring and finishes order to laser beam emitting device and all datum mark monitoring devices, and laser is sent out
Injection device receives monitoring and finishes closing generating laser power supply after order, and each datum mark monitoring device receives monitoring and finishes order
After close light hole.
Preferably, camera head is sent to image processing apparatus, image processing apparatus by laser circular light spot picture is shot
The process for carrying out image procossing is comprised the following steps:
1) the laser circular light spot picture of shooting is carried out into image conversion, from 24 RGB images 8 gray-scale maps is converted into
Picture;
2) edge of circular light spot is detected using Canny edge detection algorithms;
3) the different circle in multiple radiuses, the center of circle is found using hough-circle transform;
4) change Hough transformation sequence, divide rule equally, find unique circle;
5) central coordinate of circle of circular light spot is got.
Preferably, the process for calculating depression and the horizontal displacement of datum mark is:Circular light spot image will be gathered during monitoring
The central coordinate of circle of central coordinate of circle and initial circular light spot image carry out computing to calculate the depression and horizontal displacement of datum mark,
The central coordinate of circle for assuming the initial circular light spot image of n-th datum mark is (X1, Y1), carries out being adopted when n-th datum mark is monitored
The central coordinate of circle of collection circular light spot image is (X2, Y2), then the side-play amount of n-th datum mark horizontal displacement is W=(X2-X1) K,
The displacement of n-th datum mark depression is H=(Y1-Y2) K, wherein, (X1, Y1) and (X2, Y2) is Circle in Digital Images imago vegetarian refreshments
Position coordinateses, the ratio that K is actual range with this section of actual range pixel number in the picture.
Depression and water of the reservoir dam deformation monitoring method of the present invention by one dimensional image identification dam body each datum mark
Flat misalignment, can easily calculate whole reservoir dam depression and situation about moving horizontally, and not only realize to dam
Body depression and the automatic monitoring function of horizontal displacement, and improve the certainty of measurement of reservoir dam, reduce monitoring cost.
As shown in figure 3, the one dimension displacement principle of the view-based access control model of present invention employing is as follows:
There is a photographic head in each monitoring case body, absorb one-dimensional pattern, as shown in Figure 3.Laser is irradiated to datum mark
A circular light spot is formed on the baffle plate of monitoring point.The hot spot such as Fig. 3 (A) formed in the initial position of n-th datum mark is shown,
When n-th datum mark sinks, such as Fig. 3 (B) shows that hot spot will not change, but baffle plate is moved down relative to hot spot;
If n-th datum mark offsets to the left, such as Fig. 3 (C) shows that then baffle plate is moved to the left relative to hot spot.
If the n-th datum mark of dam body occurs depression and horizontal displacement, hot spot is shot by photographic head and is moved
Image schematic diagram such as Fig. 2 show.Because photographic head will not change relative to the position of baffle plate, keep off in the image for thus shooting
Plate will not be moved, and hot spot is just moved relative to the position of baffle plate.
As shown in figure 4, the light spot image that Fig. 4 (A) shoots when being n-th datum mark initial position, now home position is
(X1, Y1) (X1, Y1 are the positions of Circle in Digital Images imago vegetarian refreshments);When n-th datum mark sinks, laser facula is relative to baffle plate
Move up, such as Fig. 4 (B) shows, now the position in the center of circle is (X1, Y2), the displacement for thus calculating sinking is H=(Y1-Y2) K
(K be actual range ratio) with this segment distance pixel number in the picture;When n-th datum mark offsets to the left, photograph
Image such as Fig. 4 (C) show that now hot spot is moved to the right, the position in the center of circle is (X2, Y1), calculates side-play amount for W=
(X2-X1)K。
The analysis by more than is found out, so as to realize that one dimensional image recognizes the depression of the datum mark and horizontal displacement situation, this
The monitoring method of invention can easily calculate dam depression and situation about moving horizontally.
As shown in Fig. 2 a kind of reservoir dam DEFORMATION MONITORING SYSTEM of the present invention, it includes laser beam emitting device, datum mark
Monitoring device and master control system, the laser beam emitting device is arranged on one end of dam body (in order to prevent laser beam emitting device from occurring
Depression affects monitoring result, and foundation pile can be arranged below laser beam emitting device), to launch collimation laser, as datum line;
Several equidistant datum marks are set on the ray with laser beam emitting device as end points, and are set respectively in each datum
A datum mark monitoring device is put, to be monitored to dam body depression and horizontal displacement;The master control system passes through channel radio
News mode is connected respectively with laser beam emitting device and datum mark monitoring device, to send monitoring order and receive the number for monitoring
According to, and process is analyzed to Monitoring Data.
As shown in Figure 5 and Figure 6, laser beam emitting device of the present invention include emitter housing 41, generating laser 43,
Mission controller 44 and laser via switching mechanism 45, the one side of emitter housing 41 is provided with laser via 42, described
Generating laser 43 is arranged in emitter housing the position of correspondence laser via 42, at the emitter housing laser via in
Laser via switching mechanism 45 is provided with the wall of side, the mission controller 45 is opened respectively with generating laser 43 and laser via
Shutting mechanism 45 is connected.As shown in Figure 7 and Figure 8, the laser via switching mechanism 45 includes being fixed on emitter case inside wall
On supporting plate 501, the one end of supporting plate 501 is provided with the light hole 502 correspondingly sized with laser via, the supporting plate other end
Horizontal orbit hole 503, orbit hole 503 and the UNICOM of light hole 502 are provided with, in supporting plate 501 near emitter housing sidewall
Side is provided with chute 504, and the shutter 505 for moving left and right is provided with chute 504, and the back side of the shutter 505 is arranged
There is the tooth bar 506 moved left and right in orbit hole, the tooth bar 506 is engaged with the gear 508 being arranged in rotary shaft 507, described
The upper end of rotary shaft 507 is connected with the output shaft of the motor 509 being fixed on supporting plate, and the lower end of rotary shaft 507 is arranged
In the bearing block 510 being fixed on supporting plate, at supporting plate or so two ends, the position of correspondence tooth bar shift motion is respectively provided with
There is a limit switch 511 and 512;Pull-type electric magnet 513 is additionally provided with the supporting plate 501, when shutter blocks thang-kng
When hole and laser via pull-type electric magnet 513 stopper fall tooth bar 506 away from light hole one end;The limit switch
511 and 512 outfan is connected with mission controller 44, and the control end of the motor 509 is connected with mission controller 44,
The control end of the pull-type electric magnet 513 is connected with mission controller 4.
The shutter 505 is abutted against on the medial wall of emitter housing 41 away from the one side of supporting plate;The emitter shell
Body 41 is waterproof case;The shutter 505 adopts polyethylene board.Increased the sealing and water proofing property of emitter housing.
As shown in figure 9, the mission controller include STM32F107 single-chip microcomputers and respectively with STM32F107 single-chip microcomputers
The power module of connection, GPRS module, RS485 circuits, clock circuit, radio frequency chip, memorizer, limit switch input every
From circuit, stepper motor driving circuit, control circuit for electromagnet and generating laser power control circuit;The limit switch is defeated
Enter isolation circuit to be connected with the outfan of limit switch;The stepper motor driving circuit is connected with the control end of motor,
The control circuit for electromagnet is connected with the control end of pull-type electric magnet;The memorizer adopts AT24C02 storage chips.
The laser beam emitting device of the present invention realizes the laser of emitter housing by arranging laser via switching mechanism and leads to
Hole opens and closes automatically, and shutter is processed into using polyethylene board in laser via switching mechanism, and cost is relatively low, durable anti-
Corrosion, and not modification, Management Controller is constituted using feature richness, powerful 32 single-chip microcomputer STM32F107 of ARM, meets whole
The field requirement of individual system.When reservoir dam monitoring is carried out, control laser via switching mechanism is automatically by emitter housing
Laser via is opened, and makes laser through light hole and laser via;When monitoring is completed, control laser via switching mechanism is automatic
Light hole and laser via are closed, prevent dust, rainwater etc. from entering in housing, not only reduce artificial participation, saved cost,
And accomplished the purpose monitored at any time.
As shown in Figure 10 and Figure 11, the datum mark monitoring device is included at monitor housing 21, camera head 23, image
Reason device 24, first through hole switching mechanism 25, the second through hole switching mechanism 26 and monitor controller 27, the monitor housing 21
Corresponding two sides are respectively arranged with the through hole 22 that the collimation laser for allowing laser beam emitting device to launch passes through, the shooting dress
Put 23 and be arranged in monitor housing 21 top position between two through holes, in the medial wall of 21 two through holes of monitor housing
On be respectively arranged with the through hole switching mechanism 26 of first through hole switching mechanism 25 and second, described image processing meanss 24 and monitoring control
Device processed 27 is arranged in monitor housing 21, and the camera head 23 is connected with image processing apparatus 24, the monitor controller
27 are connected respectively with image processing apparatus 24, the through hole switching mechanism 26 of first through hole switching mechanism 25 and second.Such as Fig. 7 and Fig. 8
Shown, the described through hole switching mechanism 26 of first through hole switching mechanism 25 and second includes being fixed on monitor case inside wall
On supporting plate 501, the one end of supporting plate 501 is provided with the light hole 502 correspondingly sized with through hole, the supporting plate other end is arranged
There are horizontal orbit hole 503, orbit hole 503 and the UNICOM of light hole 502, in supporting plate 501 near monitor housing sidewall side
Chute 504 is provided with, the shutter 505 for moving left and right is provided with chute 504, the back side of the shutter 505 is provided with
The tooth bar 506 that orbit hole is moved left and right, the tooth bar 506 is engaged with the gear 508 being arranged in rotary shaft 507, the rotation
The upper end of axle 507 is connected with the output shaft of the motor 509 being fixed on supporting plate, and the lower end of rotary shaft 507 is arranged on admittedly
It is scheduled in the bearing block 510 on supporting plate, at supporting plate or so two ends, the position of correspondence tooth bar shift motion is respectively arranged with one
Individual limit switch 511 and 512;Pull-type electric magnet 513 is additionally provided with the supporting plate 501, when light barrier block light hole and
During through hole pull-type electric magnet 513 stopper fall tooth bar 506 away from light hole one end;The limit switch 511 and 512
Outfan is connected with monitor controller 27, and the control end of the motor 509 is connected with monitor controller 27, the pull-type electricity
The control end of Magnet 513 is connected with monitor controller 27.
Preferably, the light barrier 505 is abutted against on the medial wall of monitor housing 21 away from the one side of supporting plate;The prison
It is waterproof case to survey device housing 21;The shutter 505 adopts polyethylene board.Increased the sealing and waterproof of monitor housing
Property.
As shown in figure 12, the monitor controller includes STM8L151 single-chip microcomputers, image monitoring power control circuit, wireless
Radio-frequency communication module, wireless module power control circuit, vibrating sensor, drive circuit and power module, the STM8L151
Single-chip microcomputer is connected by UART communicating circuit circuits with image processing apparatus, described image monitoring power control circuit respectively with
STM8L151 single-chip microcomputers and image processing apparatus connect, and the wireless radio-frequency communication module is connected with STM8L151 single-chip microcomputers, institute
State wireless module power control circuit to be connected with STM8L151 single-chip microcomputers, wireless radio-frequency communication module and power module respectively, institute
State vibrating sensor to be arranged on monitor housing and be connected with STM8L151 single-chip microcomputers, the power module and STM8L151 monolithics
Machine connects.
Preferably, the power module includes solar panel, charging device and lithium battery, the solar panel
Monitor case top is arranged on, the charging device and lithium battery are arranged in monitor housing, the charging device difference
It is connected with solar panel and lithium battery, the lithium battery provides working power for monitor controller.
Preferably, the wireless radio-frequency communication module includes SX1278 wireless chips and crystal oscillator, and the SX1278 is without core
Piece is connected by SPI interface with STM8L151 single-chip microcomputers, the crystal oscillator and wireless module power control circuit respectively with SX1278
Wireless chip is connected.
Monitor controller uses STM8L151 single-chip microcomputers as main control unit, and STM8L151 single-chip microcomputers are super low-power consumption monolithic
Machine, the electric current for there was only 0.35 μ A under low-power consumption mode, is particularly suitable for battery powered system.
STM8L single-chip microcomputers are connected by serial ports with image processing module, and image processing module is responsible for shooting image and to figure
As being processed, depression and horizontal displacement are calculated, STM8L single-chip microcomputers are sent to by serial ports;Its power supply is by STM8L monolithics
Machine is controlled, and when not working, closes power supply, reduces system power dissipation.
Monitor controller is using solar panels and the power supply plan of lithium battery, and site operation is convenient, it is not necessary to extra civil power,
Green energy conservation.Solar charger with too can plate and lithium battery be connected, in real time to lithium cell charging, it is ensured that system power supply is stable.
SX1278 wireless chips are connected by SPI interface with STM8L, and the chip employs LoRa spread spectrums, with height
The receiving sensitivity of effect and superpower interference free performance.Wireless chip is responsible for receiving the control instruction that computer is issued, and will survey
The displacement data for obtaining uploads to computer, and its power supply opens and closes wireless module by Single-chip Controlling, cycle, so significantly
Reduce system power dissipation;When test point and computer are distant, can also be using GPRS and server communication, it is ensured that data are passed
It is defeated.
STM8L single-chip microcomputers control the motor rotating of strap brake function by stepper motor driver, beat and open or close
The laser light hole of monitoring point is closed, Hall limit switch is connected with single-chip microcomputer, and motor is closed to specified location when singly opening or closing
When, Hall limit switch stops step motor control to single-chip microcomputer signal.
Shaking sensor is connected with STM8L, and when monitoring point casing occurs to shake or be destroyed, shaking sensor is to monolithic
Alarm signal is sent to computer by machine alarm signal, single-chip microcomputer by wireless, and computer is by way of note by alarm signal
Breath is sent on designated person's mobile phone, is processed in time, it is ensured that system safety operation.
As shown in figure 13, described image processing meanss include processor, SD card, AT24C04 memorizeies, DDR3SDRAM,
USB interface, 24MHz crystal oscillators, RJ45 network interfaces, commissioning serial ports and STM8L communication serial ports, the processor adopts four core Cortex-
A7 CPU, described SD card, AT24C04 memorizeies, DDR3SDRAM, USB interface, 24MHz crystal oscillators, RJ45 network interfaces, commissioning string
Mouth and STM8L communication serial ports are connected respectively with four core Cortex-A7 CPU, and the USB interface is connected with OV2640 photographic head.
Image processing apparatus, as processor, are responsible for shooting image and image are processed using H3CPU.
DDR3SDRAM K4B2G1646B are connected by parallel port with H3, and it is 512MB internal memories, greatly improve system running speed, especially
When being operation image Processing Algorithm, speed is very fast;The integrated SD card interfaces of H3, very convenient use Large Copacity SD card, in design
All it is loaded in SD card using SD card as system ROM, (SuSE) Linux OS and data, it is cost-effective;The also integrated EMAC of H3
+ PHY, saves outside PHY chip, simplifies circuit, and RJ45 network interfaces are directly connected with H3, by network interface, in that context it may be convenient to logical
Cross network to communicate with H3.One group of serial ports communicates with STM8L, is responsible for that the displacement data for monitoring is transferred in single-chip microcomputer;
AT24C04 is connected by IIC interfaces with H3, can be with some calibration parameters of storage system;Integrated 4 USB interface of H3, high-definition camera
Head is connected by USB interface with H3, realizes image data acquiring.System is worked using 24MHz crystal oscillators, by internal PLL frequencys multiplication
To 1.2GHz.
The datum mark monitoring device of the present invention is automatic by the through hole that setting through hole switching mechanism realizes monitor housing
Open and close, shutter is processed into using polyethylene board in through hole switching on and shutting down, and cost is relatively low, durable anticorrosive and constant
Type, monitor controller is constituted using the STM8L single-chip microcomputers of super low-power consumption, and power consumption is relatively low, and whole system meets actual field requirement.
When carrying out reservoir dam and monitoring, control first through hole switching mechanism automatically by monitor housing towards laser beam emitting device one
The through hole of side is opened, and makes laser be irradiated to being in the light for the interior dorsad laser beam emitting device side of datum mark monitoring device through the through hole
Circular light spot is formed on plate;When monitoring is completed, the second through hole switching mechanism of control is automatically by dorsad laser on monitor housing
The through hole of discharger side is opened, and makes laser carry out next datum mark monitoring through the datum mark monitoring device.All bases
Two through holes of monitor housing are closed monitor on schedule after the completion of, prevents dust, rainwater etc. from entering in housing, not only reduce people
Work is participated in, and has saved cost, and has accomplished the purpose monitored at any time.
Preferably, the master control system include computer system and the master control wireless radio-frequency communication module that is attached thereto and
GPRS module, the computer system is monitored respectively by master control wireless radio-frequency communication module with laser beam emitting device and datum mark
Device is connected, and is connected with host computer and management terminal by GPRS module.
Preferably, the GPRS module includes SIM800C modules, SIM and MIC29302 chips, the SIM800C moulds
Block is connected respectively with STM32F107 single-chip microcomputers and power module, and the SIM is arranged in the draw-in groove of SIM800C modules, described
The control end of MIC29302 chips is connected with computer system.
Additionally, the range of application of the present invention is not limited to technique, mechanism, the system of the specific embodiment described in description
Make, material composition, means, method and step.Claims of the present invention are intended to these techniques, mechanism, manufacture, material group
Into, means, method or step be included in its protection domain.