CN109373908A - A kind of earth surface of side slope system for monitoring displacement and method - Google Patents
A kind of earth surface of side slope system for monitoring displacement and method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
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Abstract
The present invention relates to a kind of earth surface of side slope system for monitoring displacement, including mark plate and monitoring station, mark plate is fixed on the place for needing to monitor displacement vertically, one pattern is at least set on mark plate, monitoring station is arranged in geology stability region, and towards mark plate, monitoring station includes shell, and the laser ranging module being set in the housing, camera module, image processing module and communication module, laser ranging module is arranged in parallel with camera module, laser ranging module and the output signal of camera module are transmitted in image processing module, the change in location information of point being monitored is calculated by image processing module, then change in location information is remotely sent to receiving platform by communication module.The invention has the advantages that: 1, can on-line real time monitoring, and structure is simply at low cost；2, can flexible arrangement monitoring station position, avoid sight blind area；3, not only horizontal, vertical direction displacement monitoring precision is high, and the precision of length travel is also very high.
Description
Technical field
The present invention relates to a kind of earth surface of side slope system for monitoring displacement and methods, belong to Geological Hazards Monitoring field.
Background technique
In the method for existing monitoring earth surface of side slope displacement, the higher mode of monitoring precision is to utilize global navigational satellite system
GNSS monitoring of uniting is come down.Such as: the invention patent of invention of Publication No. CN107505634A " defended based on Centimeter Level high-precision by one kind
The landslide early-warning system of star location technology ", the positioning device inside used includes GNSS receiver, mobile Internet mould
Block, ARM chip, power module.GNSS receiver is made of a variety of positioning constellation receiving modules common on the market, real-time collecting
GNSS data is used for the displacement of positioning calculation monitoring point, and almanac data is recycled to improve the positioning accuracy of finder.Bulletin
Number be CN102354431B patent of invention " Geological Hazards Monitoring early warning system and monitoring and pre-alarming method ", the scheme used
Be: the permanent monitoring station GNSS is arranged in geological-hazard-prone area, by CORS system real-time monitoring surface displacement, to may be by ground
Geological disaster caused by epitope is moved carries out real-time ground displacement, and in conjunction with monitoring remote video and to monitoring information
Data processing etc. can make comparison in time with more accurately prediction to geological disaster, carry out to warning information automatic
Publication, it is thus achieved that the automatic purpose for carrying out forecasting and warning to the geological disaster that may cause in real time.
The above method can be continuously monitored, operation using Global Navigation Satellite System monitoring landslide surface displacement
It is simple and convenient, have many advantages, such as round-the-clock, high-precision, it is full-automatic, do not limited by landform sighting condition, but the disadvantage is that cost too
Height, only GNSS receiver just needs to spend tens of thousands of members for a monitoring point, is actually difficult to spread out application on a large scale.
In addition, notification number is the patent of invention " engineering ground micro-displacement quantity monitoring method " and public affairs of CN105203030B
Number patent of invention " small-displacement measuring method in long-distance plane " for being CN100360898C is accused, the technical solution used is all in water
There is degree of precision in flat transverse direction and vertical displacement, but the precision in length travel is too low, the video camera of survey station and monitoring point are marked
Will plate angle degree must vertically and mark plate placement direction parallel with direction of displacement must just can guarantee monitoring accuracy.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of earth surface of side slope system for monitoring displacement, be a kind of low cost,
The high-precision method that can remotely monitor earth surface of side slope displacement online, and improve essence of the photography monitoring direction in length travel
Degree, makes the direction of monitoring station and monitoring point can be with flexible arrangement.
Technical solution of the present invention one is as follows:
A kind of earth surface of side slope system for monitoring displacement, including mark plate and monitoring station, the mark plate are fixed on needs vertically
The place of displacement is monitored, a pattern is at least set on the mark plate, the monitoring station is arranged in geology stability region, institute
Stating monitoring station includes shell, and the laser ranging module, camera module, image processing module and the communication mould that are set in the housing
Block, the laser ranging module measure the distance between monitoring station and mark plate, and the camera module obtains the image of mark plate,
The information that the laser ranging module and camera module will acquire is transmitted in described image processing module, described image processing
Module compares adjacent image twice and adjacent distance difference twice be calculated point being monitored change in location information or the figure
As the difference between processing module comparison present image and initial pictures and current distance and initial distance, it is calculated and is supervised
Then the change in location information is remotely sent to receiving platform by the communication module by the change in location information of measuring point.
The present invention also provides a kind of earth surface of side slope displacement monitoring methods.
Technical solution of the present invention two is as follows:
A kind of earth surface of side slope displacement monitoring method, includes the following steps:
Mark plate is fixed on the place for needing to monitor displacement by step 1 vertically, and a mark is at least arranged on the mark plate
Pattern；Monitoring station is arranged in geology stability region；The monitoring station includes shell, and the laser ranging mould being set in the housing
Block, camera module, image processing module and communication module, between the laser ranging module measurement monitoring station and mark plate
Distance, the camera module obtain the image of mark plate, and the information that described image processing module will acquire is transmitted to the figure
As in processing module；
Step 2, described image processing module compare adjacent image twice and adjacent distance difference twice is calculated and is supervised
Change in location information or described image processing module the comparison present image of measuring point are with initial pictures and current distance and initially
Difference between distance, is calculated the change in location information of point being monitored, then passes through the change in location information described
Communication module is remotely sent to receiving platform.
The invention has the following beneficial effects:
1, earth surface of side slope system for monitoring displacement of the present invention can on-line real time monitoring, without human intervention, and structure simply at
This is low, can Scaledeployment；
2, monitoring station direction of the invention and the direction of mark plate do not have to exact vertical, can flexible arrangement monitoring station position
It sets, avoids sight blind area, can also facilitate centralized maintenance monitoring station；
3, earth surface of side slope system for monitoring displacement of the present invention can calculate monitoring point displacement vector, not only horizontal, vertical side
To displacement monitoring precision it is high, and the precision of length travel is also very high.
Detailed description of the invention
Fig. 1 is a kind of earth surface of side slope system for monitoring displacement structural schematic diagram of the present invention；
Fig. 2 is the schematic diagram of mark plate initial position and position after movement in the present invention；
Fig. 3 is the collected mark plate image change schematic diagram of camera module in the present invention；
Fig. 4 is azimuth ∠ δ in top view of the present invention1With azimuth ∠ δ2Schematic diagram；
Fig. 5 is the schematic diagram of monitoring station inclination angle ∠ α in side view of the present invention.
Appended drawing reference indicates in figure are as follows:
10, mark plate；11, pattern；20, monitoring station；21, shell；22, laser ranging module；23, camera module；
24, image processing module；25, communication module；30, receiving platform.
Specific embodiment
It is next in the following with reference to the drawings and specific embodiments that the present invention will be described in detail.
Embodiment one
Referring to Fig. 1, a kind of earth surface of side slope system for monitoring displacement, including mark plate 10 and monitoring station 20, the mark plate
10 are fixed on the place for needing to monitor displacement vertically, and a pattern 11, the monitoring station is at least arranged on the mark plate 10
20 are arranged in geology stability region, and towards mark plate 10, the monitoring station 20 includes shell 21, and in shell 21
Laser ranging module 22, camera module 23, image processing module 24 and communication module 25, the laser ranging module 22 measure
The distance between monitoring station 20 and mark plate 10, the camera module 23 obtain the image of mark plate 10, the laser ranging mould
The information that block 22 and camera module 23 will acquire is transmitted in described image processing module 24, described image processing module 24
It compares adjacent image twice and adjacent distance difference twice is calculated at the change in location information or described image of point being monitored
The difference between the comparison present image of module 24 and initial pictures and current distance and initial distance is managed, is calculated monitored
The change in location information of point, is then remotely sent to receiving platform by the communication module 25 for the change in location information
30。
Laser range sensor can be selected in the laser ranging module 22, and camera can be selected in the camera module 23.Institute
Stating laser ranging module 22 and camera module 23 can be arranged in parallel up and down, can also set in parallel left and right in same level
It sets.
Fig. 2 and Fig. 3 are please referred to, in the specific implementation process, adjusts the focal length of camera module 23, is located at mark plate 10 and takes the photograph
The middle part of shadow picture, pattern 11 are clear and legible.Coordinate system, the camera module 23 are established with 10 place orientation of mark plate
The initial pictures A of mark plate 10 under original state is obtained, at the beginning of image processing module 24 obtains pattern 11 by initial pictures A
Beginning horizontal position y0With original vertical position z0, laser ranging module 22 obtains the initial distance between monitoring station 20 and mark plate 10
L0And it is transferred to image processing module 24, monitoring station 20 obtains the present image of mark plate 10 periodically by camera module 23
B obtains the current horizontal location y of pattern 11 by present image BiWith current vertical position zi, i is the currently monitored number,
The current distance L between monitoring station 20 and mark plate 10 is obtained by laser ranging module 22i, image processing module 24 will currently scheme
As B and initial pictures A are compared, the horizontal cross displacement y=of 10 current location of mark plate is obtained | yi-y0| with vertical position
Move Δ z=| zi-z0|, while the current distance fed back according to laser ranging module 22, obtain the distance change Δ on monitoring direction
L=| Li-L0| to get to current flag plate 10 monitoring direction, horizontal cross and vertical direction displacement variable, it is described
Displacement variable is the change in location information.
It is arranged on multiple patterns 11, such as a mark plate 10 on the mark plate 10 and is provided with five patterns
11, the change in location information of each pattern 11 is calculated in image processing module 24, then averages, using average value as
The change in location information in the place.
Technical solution used by this implementation, can on-line real time monitoring, without human intervention, and structure is simple, at low cost,
It can Scaledeployment.Meanwhile in the present embodiment, the direction of 20 direction of monitoring station and mark plate 10 does not have to exact vertical, can flexible cloth
Sight blind area is avoided in the position for setting measuring station, can also facilitate centralized maintenance monitoring station.
Embodiment two
The present embodiment on the basis of example 1, by measurement monitoring station 20 and mark plate 10 azimuth, and
The level inclination of monitoring station 20, calculates the displacement vector of monitoring point, the displacement monitoring precision for vertical direction of not only improving the standard,
And greatly improve the precision of length travel.
Please refer to Fig. 4 and Fig. 5, the monitoring direction of the monitoring station 20 is vertical or the non-perpendicular mark plate 10, with mark
Coordinate system is established in 10 place orientation of plate, measures and records the azimuth ∠ δ of 20 monitoring direction of monitoring station1, monitoring station 20 and horizontal
10 normal direction azimuth ∠ δ of inclination angle ∠ α and mark plate between face2, the camera module 23 obtains mark plate 10 under original state
Initial pictures A, image processing module 24 by initial pictures A obtain pattern 11 original horizontal position y0With it is initial
Vertical position z0, laser ranging module 22 obtains the initial distance L between monitoring station 20 and mark plate 100And it is transferred to image procossing
Module 24, monitoring station 20 obtains the present image B of mark plate 10 periodically by camera module 23, by present image B
Obtain the current horizontal location y of pattern 11iWith current vertical position zi, i is the currently monitored number, passes through laser ranging
Module 22 obtains the current distance L between monitoring station 20 and mark plate 10i, image processing module 24 is by present image B and initial graph
As A is compared, the horizontal cross displacement y=of 10 current location of mark plate is obtained | yi-y0| with vertical displacement Δ z=| zi-
z0|, while the current distance fed back according to laser ranging module 22, obtain the distance change Δ L=on monitoring direction | Li-L0|,
Calculating the current displacement vector of mark plate 10 is p:p=Δ Lsin (α) sin (δ1-δ2)i+Δyj+Δzk。
When monitoring at multiple simultaneously using multiple mark plates 10, each mark plate 10 all establishes respective coordinate system, no
Facilitate the overall situation to check, therefore, the displacement vector of mark plate 10 be transformed to earth coordinates bottom offset vector P,
P=[Δ Lsin (α) sin (δ1-δ2)cos(δ2)+Δysin(δ2)]i+[Δycos(δ2)+ΔLsin(α)sin
(δ1-δ2)sin(δ2)]j+Δzk。
Embodiment three
Referring to Fig. 1, a kind of earth surface of side slope displacement monitoring method, includes the following steps:
Mark plate 10 is fixed on the place for needing to monitor displacement by step 1 vertically, is at least arranged one on the mark plate 10
Pattern 11；Monitoring station 20 is arranged in geology stability region, and towards mark plate 10；The monitoring station 20 includes shell
21, and laser ranging module 22, camera module 23, image processing module 24 and communication module 25 in shell 21,
The laser ranging module 22 measures the distance between monitoring station 20 and mark plate 10, and the camera module 23 obtains mark plate 10
Image, the information that described image processing module 24 will acquire is transmitted in described image processing module 24；
Step 2, described image processing module 24 compare adjacent image twice and adjacent distance difference twice be calculated by
The change in location information or described image processing module 24 of monitoring point compare present image and initial pictures and current distance with
The change in location information of point being monitored is calculated in difference between initial distance, then passes through the change in location information
The communication module 25 is remotely sent to receiving platform 30.
More preferably, the step 2 are as follows:
Fig. 2 and Fig. 3 are please referred to, coordinate system is established with 10 place orientation of mark plate, the camera module 23 obtains initial shape
The initial pictures A of mark plate 10 under state, laser ranging module 22 obtain the initial distance L between monitoring station 20 and mark plate 100, will
Initial pictures A and initial distance are transmitted to described image processing module 24, and image processing module 24 obtains mark by initial pictures A
The original horizontal position y of will pattern 110With original vertical position z0, while recording initial distance L0；
Monitoring station 20 obtains the present image B of mark plate 10, image processing module 24 periodically by camera module 23
By the current horizontal location y for obtaining pattern 11 in present image BiWith current vertical position zi, pass through laser ranging module
22 obtain the current distance L between monitoring station 20 and mark plate 10i, image processing module 24 by present image B and initial pictures A into
Row comparison, obtains the horizontal cross displacement y=of 10 current location of mark plate | yi-y0| with vertical displacement Δ z=| zi-z0|, together
When according to laser ranging module 22 feed back current distance Li, obtain on camera monitoring direction between monitoring station 20 and mark plate 10
Distance change Δ L=| Li-L0| to get to monitoring place where current flag plate 10 camera monitoring direction, horizontal cross with
And the displacement variable of vertical direction, the displacement variable are the change in location information.
Multiple patterns 11 are set on the mark plate 10, and each pattern is calculated in described image processing module 24
11 change in location information, then averages, using average value as the change in location information of the monitoring point.
Example IV
The present embodiment on the basis of example 1, by measurement monitoring station 20 and mark plate 10 azimuth, and
The level inclination of monitoring station 20, calculates the displacement vector of monitoring point, the displacement monitoring precision for vertical direction of not only improving the standard,
And greatly improve the precision of length travel.
Please refer to monitoring station 20 described in Fig. 4 to Fig. 5 camera monitoring direction is vertical or the non-perpendicular mark plate 10, institute
State step 2 are as follows: coordinate system is established with 10 place orientation of mark plate, measures and records monitoring station 20 in the side in camera monitoring direction
Parallactic angle ∠ δ1, 10 normal direction azimuth ∠ δ of inclination angle ∠ α and mark plate between monitoring station 20 and horizontal plane2；
The camera module 23 obtains the initial pictures A of mark plate 10 under original state, and laser ranging module 22 obtains prison
Initial distance L between survey station 20 and mark plate 100, initial pictures A and initial distance are transmitted to described image processing module 24,
The original horizontal position y that image processing module 24 passes through acquisition pattern 11 in initial pictures A0With original vertical position z0,
Initial distance L is recorded simultaneously0；
Fig. 2 and Fig. 3 are please referred to, monitoring station 20 obtains the present image B of mark plate 10 periodically by camera module 23,
The current horizontal location y that image processing module 24 passes through acquisition pattern 11 in present image BiWith current vertical position zi, lead to
Cross the current distance L between the acquisition monitoring station 20 of laser ranging module 22 and mark plate 10i, image processing module 24 is by present image
B is compared with initial A, obtains the horizontal cross displacement y=of 10 current location of mark plate | yi-y0| with vertical displacement Δ z=
|zi-z0|, while the current distance L fed back according to laser ranging module 22i, obtain monitoring station 20 and mark on camera monitoring direction
The distance between will plate 10 changes delta L=| Li-L0|, the displacement vector in monitoring place is p=Δ where calculating mark plate 10
Lsin(α)sin(δ1-δ2) i+ Δ yj+ Δ zk, institute's displacement vector is change in location information, passes through Δ Lsin (α) sin (δ1-
δ2) length travel in camera monitoring direction is calculated, the length travel is the displacement perpendicular to 10 direction of mark plate.
When monitoring at multiple simultaneously using multiple mark plates 10, each mark plate 10 all establishes respective coordinate system, no
The overall situation is facilitated to check,
Therefore, the displacement vector of mark plate 10 is transformed to earth coordinates bottom offset vector P=[Δ Lsin (α) sin
(δ1-δ2)cos(δ2)+Δysin(δ2)]i+[Δycos(δ2)+ΔLsin(α)sin(δ1-δ2)sin(δ2)]j+Δzk。
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of earth surface of side slope system for monitoring displacement, it is characterised in that: including mark plate (10) and monitoring station (20), the mark
Plate (10) is fixed on the place for needing to monitor displacement vertically, and a pattern (11), institute is at least arranged on the mark plate (10)
It states monitoring station (20) to be arranged in geology stability region, the monitoring station (20) includes shell (21), and is set in shell (21)
Laser ranging module (22), camera module (23), image processing module (24) and communication module (25), the laser ranging
Module (22) measures the distance between monitoring station (20) and mark plate (10), and the camera module (23) obtains mark plate (10)
Image, the laser ranging module (22) are transmitted to described image processing module with the information that camera module (23) will acquire
(24) in, described image processing module (24) compares adjacent image twice and point being monitored is calculated in adjacent distance difference twice
Change in location information or described image processing module (24) compare present image and initial pictures and current distance and initial
Difference between distance, is calculated the change in location information of point being monitored, then passes through the change in location information described
Communication module (25) is remotely sent to receiving platform (30).
2. a kind of earth surface of side slope system for monitoring displacement according to claim 1, it is characterised in that: where mark plate (10)
Coordinate system is established in orientation, and the camera module (23) obtains the initial pictures of mark plate (10) under original state, image procossing mould
Block (24) obtains pattern (11) original horizontal position y by initial pictures0With original vertical position z0, laser ranging module
(22) the initial distance L between monitoring station (20) and mark plate (10) is obtained0And it is transferred to image processing module (24), monitoring station
(20) present image that mark plate (10) are obtained periodically by camera module (23), obtains pattern by present image
(11) current horizontal location yiWith current vertical position zi, i is the currently monitored number, is obtained and is supervised by laser ranging module (22)
Current distance L between survey station (20) and mark plate (10)i, image processing module (24) carries out present image and initial pictures pair
Than obtaining the horizontal cross displacement y and vertical displacement Δ z of mark plate (10) current location, while according to laser ranging module
(22) current distance fed back obtains the distance between monitoring station (20) and mark plate (10) changes delta L on camera monitoring direction,
Change in displacement of the monitoring place in camera monitoring direction, horizontal cross and vertical direction where obtaining current flag plate (10)
Amount, the displacement variable is the change in location information.
3. a kind of earth surface of side slope system for monitoring displacement according to claim 2, it is characterised in that: the monitoring station (20)
Camera monitoring direction is vertical or the non-perpendicular mark plate (10), establishes coordinate system with orientation where mark plate (10), measurement is simultaneously
Record the azimuth ∠ δ in monitoring station (20) camera monitoring direction1, inclination angle ∠ α and mark between monitoring station (20) and horizontal plane
Plate (10) normal direction azimuth ∠ δ2, the displacement vector in monitoring place is where image processing module (24) calculates mark plate (10)
P=Δ Lsin (α) sin (δ1-δ2) i+ Δ yj+ Δ zk, institute's displacement vector is change in location information, is passed through Δ Lsin (α)
sin(δ1-δ2) length travel in camera monitoring direction is calculated, the length travel is the position perpendicular to mark plate (10) direction
It moves, described i, j, k are the unit vector of lower three change in coordinate axis direction of three-dimensional system of coordinate respectively.
4. a kind of earth surface of side slope system for monitoring displacement according to claim 1, it is characterised in that: on the mark plate (10)
It is arranged multiple patterns (11), the change in location letter of each pattern (11) is calculated in described image processing module (24)
Breath, then averages, using average value as the change in location information of the monitoring point.
5. a kind of earth surface of side slope system for monitoring displacement according to claim 3, it is characterised in that: by the position of mark plate (10)
Shifting vector is earth coordinates bottom offset vector P=[Δ Lsin (α) sin (δ1-δ2)cos(δ2)+Δysin(δ2)]i+
[Δycos(δ2)+ΔLsin(α)sin(δ1-δ2)sin(δ2)]j+Δzk。
6. a kind of earth surface of side slope displacement monitoring method, which comprises the steps of:
Mark plate (10) is fixed on the place for needing to monitor displacement by step 1 vertically, is at least arranged one on the mark plate (10)
Pattern (11)；Monitoring station (20) are arranged in geology stability region；The monitoring station (20) includes shell (21), Yi Jishe
In laser ranging module (22), camera module (23), image processing module (24) and communication module (25) in shell (21),
The laser ranging module (22) measures the distance between monitoring station (20) and mark plate (10), and the camera module (23) obtains
The image of mark plate (10), the information that described image processing module (24) will acquire are transmitted to described image processing module (24)
In；
Step 2, described image processing module (24) compare adjacent image twice and adjacent distance difference twice is calculated and is supervised
The change in location information or described image processing module (24) of measuring point compare present image and initial pictures and current distance with
The change in location information of point being monitored is calculated in difference between initial distance, then passes through the change in location information
The communication module (25) is remotely sent to receiving platform (30).
7. a kind of earth surface of side slope displacement monitoring method according to claim 6, it is characterised in that: the step 2 are as follows:
Coordinate system is established with orientation where mark plate (10), the camera module (23) obtains mark plate (10) under original state
Initial pictures, laser ranging module (22) obtain the initial distance L between monitoring station (20) and mark plate (10)0, by initial pictures
It is transmitted to described image processing module (24) with initial distance, image processing module (24) is by obtaining marking pattern in initial pictures
The original horizontal position y of case (11)0With original vertical position z0, while recording initial distance L0；
Monitoring station (20) obtains the present image of mark plate (10), image processing module periodically by camera module (23)
(24) pass through the current horizontal location y of acquisition pattern (11) in present imageiWith current vertical position zi, pass through Laser Measuring
The current distance L between monitoring station (20) and mark plate (10) is obtained away from module (22)i, image processing module (24) is by present image
Compared with initial pictures, obtain the horizontal cross displacement y=of mark plate (10) current location | yi-y0| with vertical displacement
Δ z=| zi-z0|, while the current distance L fed back according to laser ranging module (22)i, obtain monitoring station on camera monitoring direction
(20) with the distance between mark plate (10) changes delta L=| Li-L0| exist to get to monitoring place where current flag plate (10)
The displacement variable in camera monitoring direction, horizontal cross and vertical direction, the displacement variable are the change in location
Information.
8. a kind of earth surface of side slope displacement monitoring method according to claim 7, it is characterised in that: the monitoring station (20)
Camera monitoring direction is vertical or the non-perpendicular mark plate (10), the step 2 are as follows:
Coordinate system is established with orientation where mark plate (10), measures and records monitoring station (20) at the azimuth in camera monitoring direction
∠δ1, inclination angle ∠ α and mark plate (10) normal direction azimuth ∠ δ between monitoring station (20) and horizontal plane2；
The displacement vector in monitoring place is p=Δ Lsin (α) where described image processing module (24) calculates mark plate (10)
sin(δ1-δ2) i+ Δ yj+ Δ zk, institute's displacement vector is change in location information, passes through Δ Lsin (α) sin (δ1-δ2) calculate
The length travel in camera monitoring direction out, the length travel are the displacement perpendicular to mark plate (10) direction.
9. a kind of earth surface of side slope displacement monitoring method according to claim 6, it is characterised in that: on the mark plate (10)
It is arranged multiple patterns (11), the change in location letter of each pattern (11) is calculated in described image processing module (24)
Breath, then averages, using average value as the change in location information of the monitoring point.
10. a kind of earth surface of side slope displacement monitoring method according to claim 8, it is characterised in that: by mark plate (10)
Displacement vector is transformed to earth coordinates bottom offset vector P=[Δ Lsin (α) sin (δ1-δ2)cos(δ2)+Δysin(δ2)]i+
[Δycos(δ2)+ΔLsin(α)sin(δ1-δ2)sin(δ2)]j+Δzk。
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| CN113720310B (en) * | 2021-08-31 | 2023-08-08 | 中煤科工集团重庆研究院有限公司 | Roadway photographing geological cataloging method and system |
| CN113847955A (en) * | 2021-09-23 | 2021-12-28 | 华北水利水电大学 | Method for monitoring landslide sliding displacement and sliding speed based on small hole imaging |
| CN113847955B (en) * | 2021-09-23 | 2023-11-07 | 华北水利水电大学 | Landslide sliding displacement and sliding speed monitoring method based on small-hole imaging |
| CN114199310A (en) * | 2021-12-07 | 2022-03-18 | 国网新源控股有限公司 | Slope safety monitoring system and method |
| CN116363835A (en) * | 2023-03-30 | 2023-06-30 | 湖南科技大学 | Geological disaster induced landslide monitoring device |
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