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 technique
Reservoir dam is engineering project common in hydraulic engineering construction, and concrete dam and stone masonry dam build up water storage utilization
Afterwards, it under water, silt, wave, uplift pressure, temperature and the earthquake the effects of, necessarily deforms, seriously causes to collapse, 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:
1, stage (1891~1964 years) are observed, also referred to as prototype measurement.Because the level monitoring in the stage is lower, only pair
The monitoring instrument being placed on dam structure carries out artificial observation and monitoring, records dam real-time status.
2, the stage of security viewpoint direction finding safety monitoring transformation and development (nineteen sixty-five is so far).It gradually anticipates in domestic external monitor field
Know the limitation of instrument monitoring, just dam is combined using artificial inspection with Instrument observation.Wherein Japan, the U.S. are earliest
The country of walkaround inspection is carried out, then also all regulation must carry out dam for the country such as France, Canada of Italy and Norway
Manual inspection, to effectively avoid the defect for only carrying out safety monitoring to dam with observation instrument.But due to manually patrolling
The variation on dam surface can only be observed, and the variation of the labyrinth of its inside and security risk are difficult to distinguish, it is therefore necessary to
Invent a kind of monitoring technology that can at any time, everywhere, in time, efficiently reflect and monitor dam safety issuess.The later period sixties,
External many countries are studied and manufactured to the instrument and equipment of automatic monitoring dam safety: Japan realizes on arch dam first
Automatic collection is carried out to monitoring data;Later, Italy successively realizes plumb instrument deformation auto-monitoring and centralization acquisition number
According to system;1989, Canada will carry out the automation prison of the functions such as data acquisition, storage, processing, long-range and analysis
Examining system is mounted on dam.China carries out dam deformation since the eighties and monitors, and also has developed distributed intelligence monitoring
Data collection system, wireless communication module and the software systems for safeguarding dam network safety information.
Two ways is used to dam deformation monitoring in the world at present:
1, according to basic point elevation and position, theodolite, level, electronic distance meter or laser collimator, GPS, intelligence are used
Can total station etc. come measure dam surface punctuate, elevation and change in location at surveyor's beacon.The three-D displacement data that measuring point can be achieved are surveyed
Amount;
2, the instrument for installing or burying some monitoring displacements in dam surface is typically only capable to the individual event displacement number of measurement measuring point
According to (horizontal displacement or vertical displacement).Common 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, it can be full
The equipment of sufficient requirements almost without.Dam body internal displacement monitoring can only use traditional individual event displacement monitoring equipment, need
Pre-plugged or drilling installation are wanted, construction is inconvenient, and there is presently no good alternatives;Dam surface is displaced three dimensions used
It is easy for installation according to monitoring device, performance is stable, precision is high, but is influenced by geographical environment, mounting condition is restricted, and cost
It is high.
Research and develop one kind as a result, is not influenced by geographical environment, and the response time is fast, and measurement accuracy height is, it can be achieved that self calibration, is convenient for
Realize that the dam deformation automatic monitoring system of intelligent digitalized management is significant.However for many years, China's reservoir dam displacement prison
Survey is in personal monitoring's stage, and on-line monitoring only just developed in recent years.Itself with regard to displacement monitoring equipment, although kind
There are many class, but every kind of equipment has its shortcoming, from several sides such as precision, stability, installing engineering amount, maintenance, use, prices
Face is investigated, and the equipment for being able to satisfy requirements is seldom.Dam body internal displacement monitoring can only use traditional individual event displacement monitoring
Equipment needs pre-plugged or drilling installation, and construction is inconvenient, and there is presently no good alternatives;Dam surface displacement makes
Three-dimensional data monitoring device is easy for installation, performance is stable, precision is high, but is influenced by geographical environment, mounting condition by
Limitation, and such home-made equipment rate is low, installation cost is high.
Summary of the invention
In view of the above deficiencies, the present invention provides a kind of reservoir dam deformation monitoring method and system, 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
Following procedure:
1) reservoir dam deformation monitoring device is set
Indeformable place installation laser beam emitting device outside dam body is chosen, multiple datum mark monitoring dresses are installed on dam body
It sets, the datum mark monitoring device and laser beam emitting device on the same line and are located at the same side of laser beam emitting device,
Laser beam emitting device forms a circular light spot when launching light barrier of the collimated laser light to each datum mark monitoring device;
2) the initial circular light spot image of each datum mark is obtained
The laser emitter power supply for being first turned on laser beam emitting device launches collimation laser to datum mark monitoring device, so
So that the light barrier of each datum mark monitoring device is sheltered from laser route afterwards and shoots the circle that laser is formed on light barrier
Shape hot spot stores after the initial circular hot spot of each datum mark is finally carried out image procossing;
3) reservoir dam deformation monitoring is carried out
31) master control system leads to wireless communication mode to laser beam emitting device transmission monitoring order, and laser beam emitting device receives
After order, laser emitter power supply is opened, and the light hole control mechanism for controlling laser side is opened, and is sent out to datum mark monitoring device
Project collimation laser;
32) computer leads to wireless communication mode to first datum mark monitoring device transmission monitoring order, first benchmark
After point monitoring device receives order, the light hole towards laser beam emitting device side is opened, at this time laser irradiation to first base
Circular light spot, first datum mark monitoring device are formed on the light barrier of laser beam emitting device side in monitoring device on schedule
Controller control photographic device carry out circular light spot Image Acquisition, image processing apparatus carries out the circular light spot image of acquisition
Controller is sent to after image procossing, acquisition circular light spot image and initial circular light spot image divide when controller is to monitoring
Analysis handles and calculates the depression and horizontal displacement of the datum mark, and the reservoir dam data of monitoring are sent a master control system by controller
System, master control system are shown after receiving monitoring data;After the completion of the monitoring of first datum mark, master control system is to first benchmark
Point monitoring device sends monitoring and completes order, and first datum mark monitoring device is received after order is completed in monitoring and opened backwards to laser
The light hole of emitter side;
33) successively remaining datum mark is monitored according to step 32), until the monitoring of all datum marks is completed;
34) master control system sends monitoring to laser beam emitting device and all datum mark monitoring devices and finishes order, laser hair
Injection device receives after monitoring finishes order and closes laser emitter power supply, 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, several are at equal intervals
Datum mark is located at using laser beam emitting device as on the ray of endpoint.
Preferably, photographic device is sent to image processing apparatus, image processing apparatus for laser circular light spot picture is shot
Carry out image procossing process the following steps are included:
1) the laser circular light spot picture of shooting is subjected to image conversion, is converted into 8 grayscale images from 24 RGB images
Picture;
2) using the edge of Canny edge detection algorithm detection circular light spot;
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 of depression and the horizontal displacement of datum mark is calculated are as follows: acquire circular light spot image when by monitoring
Central coordinate of circle and the central coordinate of circle of initial circular light spot image carry out operation to calculate the depression and horizontal displacement of datum mark,
Assuming that the central coordinate of circle of the initial circular light spot image of n-th datum mark is (X1, Y1), adopt when the monitoring of n-th datum mark
The central coordinate of circle for collecting circular light spot image is (X2, Y2), then the offset 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 coordinates, K are the ratio of actual range and this section of actual range pixel number in the picture.
The present invention also provides a kind of reservoir dam DEFORMATION MONITORING SYSTEMs, it includes laser beam emitting device, datum mark monitoring
Device and master control system, one end of dam body is arranged in the laser beam emitting device, to launch collimation laser, as benchmark
Line;Several equidistant datum marks are set on the ray using laser beam emitting device as endpoint, and are punished in each datum mark
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 with laser beam emitting device and datum mark monitoring device respectively, monitor to send monitoring order and receiving
Data, and monitoring data are analyzed and processed.
Preferably, the laser beam emitting device includes transmitter shell, mission controller, laser emitter and laser via
Switching mechanism, the transmitter shell one side are provided with laser via, and the laser emitter is arranged in transmitter shell
The position of corresponding laser via, is provided with laser via switching mechanism, institute on the inner sidewall at transmitter shell laser via
Mission controller is stated to be connected with laser emitter and laser via baffle mechanism respectively;The laser via switching mechanism includes solid
The supporting plate being scheduled on transmitter case inside wall, supporting plate one end be provided with laser via light hole of corresponding size,
The supporting plate other end is provided with horizontal orbit hole, orbit hole and light hole connection, in supporting plate close to transmitter housing sidewall
Side is provided with sliding slot, and the shutter moved left and right is provided in sliding slot, and the back of blocking is provided on an orbit hole left side
The rack gear moved right, the rack gear engages with setting gear on the rotary shaft, the upper end of the rotary shaft be fixed on bracket
The output axis connection of stepper motor on plate, the lower end of rotary shaft is arranged in the bearing block being fixed on supporting plate, in bracket
The position that plate left and right ends correspond to rack gear shift motion is respectively arranged with a limit switch;Drawing is additionally provided on the supporting plate
Formula electromagnet falls in rack gear far from light hole under the stopper of pull-type electromagnet when shutter blocks light hole and laser via
One end;The output end of the limit switch is connect with mission controller, and the control terminal and mission controller of the stepper motor connect
It connects, the control terminal of the pull-type electromagnet is connect with mission controller.
Preferably, the shutter abutted against on transmitter case inside wall on one side away from supporting plate;The transmitter
Shell is waterproof shell;The shutter uses polyethylene board.
Preferably, the mission controller includes STM32F107 single-chip microcontroller and connect respectively with STM32F107 single-chip microcontroller
Power module, GPRS module, RS485 circuit, clock circuit, radio frequency chip, memory, limit switch input isolation electricity
Road, stepper motor driving circuit, control circuit for electromagnet and laser emitter power control circuit;Limit switch input every
It is connected from the output end of circuit and limit switch;The connection of the control terminal of the stepper motor driving circuit and stepper motor, it is described
Control circuit for electromagnet is connect with the control terminal of pull-type electromagnet;The memory uses AT24C02 storage chip.
Preferably, the datum mark monitoring device include monitor shell, it is photographic device, image processing apparatus, first logical
Hole switching mechanism, the second through-hole switching mechanism and monitor controller, the corresponding two sides of the monitor shell are respectively arranged with
Through-hole, photographic device setting is in top position between two through-holes in monitor shell, in two through-holes of monitor shell
First through hole switching mechanism and the second through-hole switching mechanism, described image processing unit and prison are respectively arranged on the inner sidewall at place
It surveys controller to be arranged in monitor shell, the photographic device 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;The first through hole switching mechanism
Include the supporting plate being fixed on monitor case inside wall with the second through-hole switching mechanism, supporting plate one end be provided with
Through-hole light hole of corresponding size, the supporting plate other end is provided with horizontal orbit hole, orbit hole and light hole connection, in bracket
Plate is provided with sliding slot close to monitor housing sidewall side, and the light barrier moved left and right, the light barrier are provided in sliding slot
The back side is provided with the rack gear moved left and right in orbit hole, and the rack gear is engaged with the gear of setting on the rotary shaft, the rotation
The lower end setting of the output axis connection of the upper end of axis and the stepper motor being fixed on supporting plate, rotary shaft is being fixed on supporting plate
On bearing block in, be respectively arranged with a limit switch in the position that supporting plate left and right ends correspond to rack gear shift motion;Institute
It states and is additionally provided with pull-type electromagnet on supporting plate, fallen under the stopper of pull-type electromagnet when light barrier blocks light hole and through-hole
The one end of rack gear far from light hole;The output end of the limit switch is connect with monitor controller, the control of the stepper motor
End is connect with monitor controller, and the control terminal of the pull-type electromagnet is connect with monitor controller.
Preferably, the light barrier abutted against on monitor case inside wall on one side away from supporting plate;The monitor
Shell is waterproof shell;The light barrier uses polyethylene board;The photographic device uses OV2640 camera.
Preferably, the monitor controller includes STM8L151 single-chip microcontroller, image monitoring power control circuit, less radio-frequency
Communication module, wireless module power control circuit, vibrating sensor, driving circuit and power module, the STM8L151 monolithic
Machine is connect by UART communicating circuit circuit with image processing apparatus, described image monitoring power control circuit respectively with
STM8L151 single-chip microcontroller is connected with image processing apparatus, and the wireless radio-frequency communication module is connect with STM8L151 single-chip microcontroller, institute
It states wireless module power control circuit to connect with STM8L151 single-chip microcontroller, wireless radio-frequency communication module and power module respectively, institute
It states vibrating sensor to be arranged in monitor shell and connect with STM8L151 single-chip microcontroller, the power module and STM8L151 monolithic
Machine connection.
Preferably, described image processing unit includes that processor, SD card, AT24C04 memory, DDR3SDRAM, USB connect
Mouth, 24MHz crystal oscillator, RJ45 network interface, commissioning serial ports and STM8L communication serial port, the processor use four core Cortex-A7
CPU, the SD card, AT24C04 memory, DDR3SDRAM, USB interface, 24MHz crystal oscillator, RJ45 network interface, commissioning serial ports
It is connected respectively with four core Cortex-A7 CPU with STM8L communication serial port, the USB interface is connect with OV2640 camera.
Preferably, the power module includes solar panel, charging unit and lithium battery, the solar panel
Setting is arranged in monitor shell in monitor case top, the charging unit and lithium battery, the charging unit difference
It is connect 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 chip and crystal oscillator, and the SX1278 is without core
Piece is connected by SPI interface with STM8L151 single-chip microcontroller, 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 being attached thereto and
GPRS module, the computer system are monitored with laser beam emitting device and datum mark respectively by master control wireless radio-frequency communication module
Device is connected, and is connected by GPRS module with host computer and management terminal.
Preferably, the GPRS module includes SIM800C module, SIM card and MIC29302 chip, the SIM800C mould
Block is connect with STM32F107 single-chip microcontroller and power module respectively, and the SIM card is arranged in the card slot of SIM800C module, described
The control terminal of MIC29302 chip is connect with computer system.
The beneficial effects of the present invention are:
Reservoir dam deformation monitoring method of the invention identifies depression and the water of each datum mark of dam body by one dimensional image
Flat misalignment not only realizes the case where capable of easily calculating entire reservoir dam depression and move horizontally to dam
The automatic monitoring function of body depression and horizontal displacement, and improve the measurement accuracy of reservoir dam, reduce monitoring cost.
Reservoir dam DEFORMATION MONITORING SYSTEM of the invention uses laser as benchmark, is handled using high-definition camera and ARM
Device shoots image and to image procossing, by optimizing to hough-circle transform algorithm, determines the center location of Circle in Digital Images spot,
According to the position versus of current center location and last time measurement, offset is calculated, so that it is determined that depression and horizontal displacement.This hair
The laser power of bright use is small, precision is high, and the monitoring device mechanism used is simple, facilitates installation, and the system hardware
Cost is very low and high reliablity.
Reservoir dam DEFORMATION MONITORING SYSTEM of the invention can carry out depression to reservoir dam and monitor automatically with horizontal displacement,
Not only product cost is low, measurement accuracy is high, performance is stable but also easy for installation, influenced by geographical environment, maintenance cost is low,
It is practical.Transmitter shell and monitor shell are realized by setting through-hole switching mechanism and laser via switching mechanism
Through-hole and laser via open and close automatically, and shutter is processed into using polyethylene board in through-hole switching mechanism, cost compared with
It is low, it is durable anticorrosive, and not modification, monitor controller are constituted using the STM8L single-chip microcontroller of super low-power consumption, power consumption is lower, entirely
System meets actual field requirement.When carrying out reservoir dam monitoring, the present invention controls through-hole switching mechanism automatically by monitor
The through-hole and laser via of shell and transmitter shell are opened, and laser is made to pass through light hole and through-hole;When monitoring completion, control
Light hole and through-hole is automatically closed in through-hole switching mechanism, prevents dust, rainwater etc. from entering in shell, not only reduces artificial ginseng
With saved cost, and accomplished the purpose monitored at any time.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention;
Fig. 2 is the structure and setting schematic diagram of reservoir dam deformation monitoring device of the present invention;
Fig. 3 is the image schematic diagram that n-th datum mark monitoring front and back is shot;
Fig. 4 is the image schematic diagram that n-th datum mark monitoring front and back is shot;
Fig. 5 is the structural schematic diagram of transmitter shell of the present invention;
Fig. 6 is the schematic diagram of internal structure of transmitter shell of the present invention;
Fig. 7 is the structural schematic diagram of through-hole switching mechanism of the present invention (supporting plate deviates from housing sidewall side);
Fig. 8 is the structural schematic diagram of through-hole switching mechanism of the present invention (supporting plate is close to housing sidewall side);
Fig. 9 is the electrical schematic diagram of mission controller of the present invention;
Figure 10 is the structural schematic diagram of monitor shell of the present invention;
Figure 11 is the schematic diagram of internal structure of monitor shell 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 be transmitter shell, and 42 be laser via, and 43 be laser emitter, and 44 be mission controller,
45 be laser via switching mechanism;
In Fig. 7 and Fig. 8,501 it is supporting plate, 502 is light hole, 503 is orbit hole, 504 is sliding slot, 505 is shutter
(light barrier), 506 be rack gear, 507 be rotary shaft, 508 be gear, 509 be stepper motor, 510 be that bearing block, 511 and 512 are
Limit switch, 513 are pull-type electromagnet.
In Figure 10 and Figure 11,21 be monitor shell, and 22 be through-hole, and 23 be photographic device, and 24 be image processing apparatus, 25
It is the second through-hole switching mechanism for first through hole switching mechanism, 26,27 be monitor controller.
Specific embodiment
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.For letter
Change disclosure of the invention, hereinafter the component of specific examples and setting are described.In addition, 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
Relationship between embodiment and/or setting.It should be noted that illustrated component is not drawn necessarily to scale in the accompanying drawings.This hair
It is bright that the description to known assemblies and treatment technology and process is omitted to avoid the present invention is unnecessarily limiting.
As shown in Figure 1, a kind of reservoir dam deformation monitoring method of the invention, it includes following procedure:
1) reservoir dam deformation monitoring device is set
As shown in Fig. 2, choosing indeformable place installation laser beam emitting device outside dam body, multiple benchmark are installed on dam body
Point monitoring device, the datum mark monitoring device and laser beam emitting device are on the same line and positioned at laser beam emitting device
The same side, datum mark monitoring device be arranged on several equidistant datum marks, several equidistant datum marks be located at
Laser beam emitting device is on the ray of endpoint;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 laser emitter power supply for being first turned on laser beam emitting device launches collimation laser to datum mark monitoring device, so
So that the light barrier of each datum mark monitoring device is sheltered from laser route afterwards and shoots the circle that laser is formed on light barrier
Shape hot spot stores after the initial circular hot spot of each datum mark is finally carried out image procossing.
3) reservoir dam deformation monitoring is carried out
31) master control system leads to wireless communication mode to laser beam emitting device transmission monitoring order, and laser beam emitting device receives
After order, laser emitter power supply is opened, and the light hole control mechanism for controlling laser side is opened, and is sent out to datum mark monitoring device
Project collimation laser;
32) computer leads to wireless communication mode to first datum mark monitoring device transmission monitoring order, first benchmark
After point monitoring device receives order, the light hole towards laser beam emitting device side is opened, at this time laser irradiation to first base
Circular light spot, first datum mark monitoring device are formed on the light barrier of laser beam emitting device side in monitoring device on schedule
Controller control photographic device carry out circular light spot Image Acquisition, image processing apparatus carries out the circular light spot image of acquisition
Controller is sent to after image procossing, acquisition circular light spot image and initial circular light spot image divide when controller is to monitoring
Analysis handles and calculates the depression and horizontal displacement of the datum mark, and the reservoir dam data of monitoring are sent a master control system by controller
System, master control system are shown after receiving monitoring data;After the completion of the monitoring of first datum mark, master control system is to first benchmark
Point monitoring device sends monitoring and completes order, and first datum mark monitoring device is received after order is completed in monitoring and opened backwards to laser
The light hole of emitter side;
33) successively remaining datum mark is monitored according to step 32), until the monitoring of all datum marks is completed;
34) master control system sends monitoring to laser beam emitting device and all datum mark monitoring devices and finishes order, laser hair
Injection device receives after monitoring finishes order and closes laser emitter power supply, and each datum mark monitoring device receives monitoring and finishes order
After close light hole.
Preferably, photographic device is sent to image processing apparatus, image processing apparatus for laser circular light spot picture is shot
Carry out image procossing process the following steps are included:
1) the laser circular light spot picture of shooting is subjected to image conversion, is converted into 8 grayscale images from 24 RGB images
Picture;
2) using the edge of Canny edge detection algorithm detection circular light spot;
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 of depression and the horizontal displacement of datum mark is calculated are as follows: acquire circular light spot image when by monitoring
Central coordinate of circle and the central coordinate of circle of initial circular light spot image carry out operation to calculate the depression and horizontal displacement of datum mark,
Assuming that the central coordinate of circle of the initial circular light spot image of n-th datum mark is (X1, Y1), adopt when the monitoring of n-th datum mark
The central coordinate of circle for collecting circular light spot image is (X2, Y2), then the offset 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 coordinates, K are the ratio of actual range and this section of actual range pixel number in the picture.
Reservoir dam deformation monitoring method of the invention identifies depression and the water of each datum mark of dam body by one dimensional image
Flat misalignment not only realizes the case where capable of easily calculating entire reservoir dam depression and move horizontally to dam
The automatic monitoring function of body depression and horizontal displacement, and improve the measurement accuracy of reservoir dam, reduce monitoring cost.
As shown in figure 3, the one dimension displacement principle for the view-based access control model that the present invention uses is as follows:
There is a camera in each monitoring case body, absorbs one-dimensional pattern, as shown in Figure 3.Laser irradiation is to datum mark
A circular light spot is formed on the baffle of monitoring point.Shown in hot spot such as Fig. 3 (A) that the initial position of n-th datum mark is formed,
When n-th datum mark sinks, as Fig. 3 (B) shows that hot spot will not change, but baffle is moved down relative to hot spot;
If n-th datum mark deviates to the left, as Fig. 3 (C) shows that then baffle moves to the left relative to hot spot.
If depression and horizontal displacement occur for the n-th datum mark of dam body, hot spot is shot by camera and is moved
Image schematic diagram such as Fig. 2 show.Because camera will not change relative to the position of baffle, kept off in the image thus shot
Plate will not move, and hot spot is just moved relative to the position of baffle.
As shown in figure 4, the light spot image that Fig. 4 (A) is shot when being n-th datum mark initial position, center location is at this time
(X1, Y1) (position that X1, Y1 are Circle in Digital Images imago vegetarian refreshments);When n-th datum mark sinks, laser facula is relative to baffle
It moves up, if Fig. 4 (B) shows, the position in the center of circle is (X1, Y2) at this time, and the displacement for thus calculating sinking is H=(Y1-Y2) K
(ratio that K is actual range and this section of distance pixel number in the picture);When n-th datum mark deviates to the left, take
Image such as Fig. 4 (C) show that hot spot moves to the right at this time, the position in the center of circle is (X2, Y1), calculate offset be W=
(X2-X1)K。
Found out by analyzing above, thus realize that one dimensional image identifies the depression and horizontal displacement situation of the datum mark, this
The case where monitoring method of invention can easily calculate dam depression and move horizontally.
As shown in Fig. 2, a kind of reservoir dam DEFORMATION MONITORING SYSTEM of the invention, it includes laser beam emitting device, datum mark
One end (laser beam emitting device generation in order to prevent of dam body is arranged in monitoring device and master control system, the laser beam emitting device
Depression influences monitoring result, and foundation pile can be arranged below laser beam emitting device), to launch collimation laser, as reference line;
Several equidistant datum marks are set on the ray using laser beam emitting device as endpoint, and are set respectively in each datum
A datum mark monitoring device is set, to be monitored to dam body depression and horizontal displacement;The master control system passes through channel radio
News mode is connected with laser beam emitting device and datum mark monitoring device respectively, to send monitoring order and receive the number monitored
According to, and monitoring data are analyzed and processed.
As shown in Figure 5 and Figure 6, laser beam emitting device of the present invention include transmitter shell 41, laser emitter 43,
Mission controller 44 and laser via switching mechanism 45,41 one side of transmitter shell is provided with laser via 42, described
The position that laser via 42 is corresponded in transmitter shell is arranged in laser emitter 43, at the transmitter shell laser via in
Laser via switching mechanism 45 is provided on side wall, the mission controller 45 is opened with laser emitter 43 and laser via respectively
Shutting mechanism 45 is connected.As shown in Figure 7 and Figure 8, the laser via switching mechanism 45 includes being fixed on transmitter case inside wall
On supporting plate 501, be provided with and laser via light hole 502 of corresponding size, the supporting plate other end in 501 one end of supporting plate
It is provided with horizontal orbit hole 503, orbit hole 503 and 502 connection of light hole, in supporting plate 501 close to transmitter housing sidewall
Side is provided with sliding slot 504, and the shutter 505 moved left and right, 505 back side of the shutter setting are provided in sliding slot 504
There is the rack gear 506 moved left and right in orbit hole, the rack gear 506 is engaged with the gear 508 being arranged in rotary shaft 507, described
The output axis connection of the upper end of rotary shaft 507 and the stepper motor 509 being fixed on supporting plate, the lower end setting of rotary shaft 507
In the bearing block 510 being fixed on supporting plate, it is respectively set in the position that supporting plate left and right ends correspond to rack gear shift motion
There is a limit switch 511 and 512;Pull-type electromagnet 513 is additionally provided on the supporting plate 501, when shutter blocks light passing
The one end of rack gear 506 far from light hole is fallen in when hole and laser via under the stopper of pull-type electromagnet 513;The limit switch
511 and 512 output end is connect with mission controller 44, and the control terminal of the stepper motor 509 is connect with mission controller 44,
The control terminal of the pull-type electromagnet 513 is connect with mission controller 4.
The shutter 505 abuts against on 41 inner sidewall of transmitter shell on one side away from supporting plate;The transmitter shell
Body 41 is waterproof shell;The shutter 505 uses polyethylene board.Increase the leakproofness and waterproofness of transmitter shell.
As shown in figure 9, the mission controller include STM32F107 single-chip microcontroller and respectively with STM32F107 single-chip microcontroller
The power module of connection, GPRS module, RS485 circuit, clock circuit, radio frequency chip, memory, limit switch input every
From circuit, stepper motor driving circuit, control circuit for electromagnet and laser emitter power control circuit;The limit switch is defeated
The output end for entering isolation circuit and limit switch connects;The connection of the control terminal of the stepper motor driving circuit and stepper motor,
The control circuit for electromagnet is connect with the control terminal of pull-type electromagnet;The memory uses AT24C02 storage chip.
The laser that laser beam emitting device of the invention realizes transmitter shell by the way that laser via switching mechanism is arranged 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 are constituted using feature-rich, powerful 32 single-chip microcontroller STM32F107 of ARM, are met whole
The site requirement of a system.When carrying out reservoir dam monitoring, laser via switching mechanism is controlled automatically by transmitter shell
Laser via is opened, and laser is made to pass through light hole and laser via;When monitoring completion, control laser via switching mechanism is automatic
Light hole and laser via are closed, prevents dust, rainwater etc. from entering in shell, not only reduces artificial participation, saved cost,
And the purpose monitored at any time is accomplished.
As shown in Figure 10 and Figure 11, the datum mark monitoring device includes monitor shell 21, photographic device 23, at image
Manage device 24, first through hole switching mechanism 25, the second through-hole switching mechanism 26 and monitor controller 27, the monitor shell 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 camera shooting dress
Set inner sidewall of 23 settings in top position between two through-holes in monitor shell 21, in 21 two through holes of monitor shell
On be respectively arranged with first through hole switching mechanism 25 and the second through-hole switching mechanism 26, described image processing unit 24 and monitoring control
Device 27 processed is arranged in monitor shell 21, and the photographic device 23 is connected with image processing apparatus 24, the monitor controller
27 are connected with image processing apparatus 24, first through hole switching mechanism 25 and the second through-hole switching mechanism 26 respectively.Such as Fig. 7 and Fig. 8
Shown, the first through hole switching mechanism 25 and the second through-hole switching mechanism 26 includes being fixed on monitor case inside wall
On supporting plate 501, be provided with and through-hole light hole 502 of corresponding size in 501 one end of supporting plate, the setting of the supporting plate other end
There are horizontal orbit hole 503, orbit hole 503 and 502 connection of light hole, in supporting plate 501 close to monitor housing sidewall side
It is provided with sliding slot 504, the shutter 505 moved left and right is provided in sliding slot 504,505 back side of shutter is provided with
The rack gear 506 that orbit hole moves left and right, the rack gear 506 are engaged with the gear 508 being arranged in rotary shaft 507, the rotation
The output axis connection of the upper end of axis 507 and the stepper motor 509 being fixed on supporting plate, the lower end setting of rotary shaft 507 is solid
It is scheduled in the bearing block 510 on supporting plate, is respectively arranged with one in the position that supporting plate left and right ends correspond to rack gear shift motion
A limit switch 511 and 512;Pull-type electromagnet 513 is additionally provided on the supporting plate 501, when light barrier block light hole and
The one end of rack gear 506 far from light hole is fallen in when through-hole under the stopper of pull-type electromagnet 513;The limit switch 511 and 512
Output end is connect with monitor controller 27, and the control terminal of the stepper motor 509 is connect with monitor controller 27, the pull-type electricity
The control terminal of magnet 513 is connect with monitor controller 27.
Preferably, the light barrier 505 abutted against on 21 inner sidewall of monitor shell on one side away from supporting plate;The prison
Survey device shell 21 is waterproof shell;The shutter 505 uses polyethylene board.Increase the leakproofness and waterproof of monitor shell
Property.
As shown in figure 12, the monitor controller include STM8L151 single-chip microcontroller, it is image monitoring power control circuit, wireless
Radio-frequency communication module, wireless module power control circuit, vibrating sensor, driving circuit and power module, the STM8L151
Single-chip microcontroller is connect by UART communicating circuit circuit with image processing apparatus, described image monitoring power control circuit respectively with
STM8L151 single-chip microcontroller is connected with image processing apparatus, and the wireless radio-frequency communication module is connect with STM8L151 single-chip microcontroller, institute
It states wireless module power control circuit to connect with STM8L151 single-chip microcontroller, wireless radio-frequency communication module and power module respectively, institute
It states vibrating sensor to be arranged in monitor shell and connect with STM8L151 single-chip microcontroller, the power module and STM8L151 monolithic
Machine connection.
Preferably, the power module includes solar panel, charging unit and lithium battery, the solar panel
Setting is arranged in monitor shell in monitor case top, the charging unit and lithium battery, the charging unit difference
It is connect 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 chip and crystal oscillator, and the SX1278 is without core
Piece is connected by SPI interface with STM8L151 single-chip microcontroller, the crystal oscillator and wireless module power control circuit respectively with SX1278
Wireless chip is connected.
Monitor controller uses STM8L151 single-chip microcontroller as main control unit, and STM8L151 single-chip microcontroller is super low-power consumption monolithic
Machine only has the electric current of 0.35 μ A under low-power consumption mode, is particularly suitable for battery powered system.
STM8L single-chip microcontroller is connected by serial ports with image processing module, and image processing module is responsible for shooting image and to figure
As being handled, depression and horizontal displacement are calculated, STM8L single-chip microcontroller is sent to by serial ports;Its power supply is by STM8L monolithic
Machine control closes power supply when not working, and reduces system power dissipation.
Monitor controller uses the power supply plan of solar panels and lithium battery, and site operation is convenient, does not need additional alternating current,
Green energy conservation.Solar charger with too can plate and lithium battery connect, give lithium battery charging in real time, guarantee that system power supply is stablized.
SX1278 wireless chip is connected by SPI interface with STM8L, which uses LoRa spread spectrum, has height
The receiving sensitivity of effect and superpower interference free performance.Wireless chip is responsible for receiving the control instruction that computer issues, and will survey
The displacement data obtained uploads to computer, and power supply is controlled by single-chip microcontroller, and the period opens and closes wireless module, so significantly
Reduce system power dissipation;When test point and computer distance farther out when, can also use GPRS and server communication, guarantee data pass
It is defeated.
STM8L single-chip microcontroller controls the stepper motor positive and negative rotation of strap brake function by stepper motor driver, plays on or off
The laser light hole of monitoring point is closed, Hall limit switch is connected with single-chip microcontroller, when singly on or off closes stepper motor to designated position
When, Hall limit switch stops step motor control to single-chip microcomputer signal.
Shock sensor is connected with STM8L, and when monitoring point cabinet occurs vibration or is destroyed, shock sensor is to monolithic
Machine alarm signal, single-chip microcontroller is by wirelessly sending computer for alarm signal, and computer is by way of short message by alarm signal
Breath is sent on designated person's mobile phone, is handled in time, guarantees system safety operation.
As shown in figure 13, described image processing unit include processor, SD card, AT24C04 memory, DDR3SDRAM,
USB interface, 24MHz crystal oscillator, RJ45 network interface, commissioning serial ports and STM8L communication serial port, the processor use four core Cortex-
A7 CPU, the SD card, AT24C04 memory, DDR3SDRAM, USB interface, 24MHz crystal oscillator, RJ45 network interface, commissioning string
Mouth and STM8L communication serial port are connected with four core Cortex-A7 CPU respectively, and the USB interface is connect with OV2640 camera.
Image processing apparatus, as processor, is responsible for shooting image and handled image using H3CPU.
DDR3SDRAM K4B2G1646B is connected by parallel port with H3, is 512MB memory, is greatly improved system operational speed, especially
When being operation image Processing Algorithm, speed is very fast;H3 integrates SD card interface, very convenient to use large capacity SD card, in design
SD card is used all to be loaded into SD card as system ROM, (SuSE) Linux OS and data, save the cost;The also integrated EMAC of H3
+ PHY saves external PHY chip, simplifies circuit, and RJ45 network interface is directly connected with H3, passes through network interface, it may be convenient to logical
Network is crossed to communicate with H3.One group of serial ports is communicated with STM8L, is responsible for for the displacement data monitored being transferred in single-chip microcontroller;
AT24C04 is connect by IIC interface with H3, can store some calibration parameters of system;H3 integrates 4 USB interfaces, high-definition camera
Head is connect by USB interface with H3, realizes image data acquiring.System is worked using 24MHz crystal oscillator, passes through internal PLL frequency multiplication
To 1.2GHz.
Datum mark monitoring device of the invention is automatic by the through-hole that setting through-hole switching mechanism realizes monitor shell
It opens and closes, 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 are constituted using the STM8L single-chip microcontroller of super low-power consumption, and power consumption is lower, and whole system meets actual field requirement.
When carrying out reservoir dam monitoring, control first through hole switching mechanism automatically by monitor shell towards laser beam emitting device one
The through-hole of side is opened, and so that laser is passed through the through-hole and is irradiated in datum mark monitoring device backwards to the light-blocking of laser beam emitting device side
Circular light spot is formed on plate;When monitor complete when, the second through-hole switching mechanism of control automatically by monitor shell backwards to laser
The through-hole of emitter side is opened, and so that laser is passed through the datum mark monitoring device and is carried out next datum mark monitoring.All bases
Two through-holes for closing monitor shell after the completion of monitoring on schedule, prevent dust, rainwater etc. from entering in shell, not only reduce people
Work participates in, and has saved cost, and accomplished the purpose monitored at any time.
Preferably, the master control system include computer system and the master control wireless radio-frequency communication module being attached thereto and
GPRS module, the computer system are monitored with laser beam emitting device and datum mark respectively by master control wireless radio-frequency communication module
Device is connected, and is connected by GPRS module with host computer and management terminal.
Preferably, the GPRS module includes SIM800C module, SIM card and MIC29302 chip, the SIM800C mould
Block is connect with STM32F107 single-chip microcontroller and power module respectively, and the SIM card is arranged in the card slot of SIM800C module, described
The control terminal of MIC29302 chip is connect with computer system.
In addition, application range of the invention is not limited to the technique, mechanism, system of specific embodiment described in specification
It makes, material composition, means, method and step.Appended claims of the present invention are intended to these techniques, mechanism, manufacture, substance group
At, means, method or step be included in its protection scope in.