CN114998789A - Landslide geological disaster deformation monitoring system and method based on video identification - Google Patents
Landslide geological disaster deformation monitoring system and method based on video identification Download PDFInfo
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- CN114998789A CN114998789A CN202210586213.1A CN202210586213A CN114998789A CN 114998789 A CN114998789 A CN 114998789A CN 202210586213 A CN202210586213 A CN 202210586213A CN 114998789 A CN114998789 A CN 114998789A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
- G06V20/41—Higher-level, semantic clustering, classification or understanding of video scenes, e.g. detection, labelling or Markovian modelling of sport events or news items
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
- G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
- G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
- G06V10/751—Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
Abstract
A landslide geological disaster deformation monitoring system and method based on video identification are disclosed, and the system comprises a camera (4), an industrial personal computer (6), a direct-current power supply (7), an audible and visual alarm (8), a reference target point (5) and a monitoring target point (1). The landslide geological disaster monitoring system monitors landslide geological disasters through a monitoring system, judges the deformation of a monitoring point through image identification and transmits the deformation to an intelligent gateway industrial personal computer; whether the deformation value is abnormal or not is judged through data analysis, processing, analysis and matching, and the sound-light alarm is linked, so that the landslide geological disaster monitoring which is automatic, all-weather, monitoring and managing and integrated is realized.
Description
Technical Field
The invention relates to a landslide geological disaster deformation monitoring system and method based on video identification, and belongs to the technical field of geological disaster monitoring.
Background
China is vast in breadth, geological structures are complex, and stability of landslide geological disasters is more and more concerned by relevant management departments and technical units, wherein deformation monitoring of the landslide geological disasters is an important index, and traditional manual methods and automatic monitoring methods have certain limitations and are difficult to meet current requirements.
The traditional manual method cannot realize real-time all-weather measurement, corresponding instrument equipment or observation equipment needs to be installed in a manual mode during each measurement, and the labor cost is high.
The conventional automatic monitoring principle needs to be mostly contact measurement, such as cracks, inclination angles, vibration and the like, the monitoring function is single, and the application scene has certain limitations.
In order to solve the problems existing in the traditional method for monitoring, it is necessary to develop a landslide geological disaster monitoring device which can be automatically monitored and managed all the day.
Disclosure of Invention
The invention aims to solve the problems of landslide geological disasters and provides a landslide geological disaster deformation monitoring system and method based on video identification.
The technical scheme of the invention is that the landslide geological disaster deformation monitoring method based on video identification comprises the steps of shooting a geological deformation surface through a video camera, identifying respective displacement values of a monitoring target point and a reference target point, and calculating displacement variation of the monitoring target point and the reference target point through a difference value with an initial value; transmitting the measured corresponding deformation change value to an industrial personal computer of the intelligent gateway; judging whether the deformation value is abnormal or not through data analysis processing, analysis and matching; if abnormal, the audible and visual alarm warns corresponding personnel and reports to the management center for supervision.
The method for calculating the deformation change value comprises the following steps that after the camera is installed, one-time calibration is carried out, namely, a monitoring target point moves up and down and is fixed to a known distance L, the camera obtains the change C of the number of pixels of a central value at the moment, and the L/C obtained through calculation is the position value corresponding to each pixel in an image, so that the calibration is completed; in actual measurement, the deformation change value of each measuring point is obtained by calculating the change number of the pixel and multiplying the change number by the L/C value.
The camera is aligned with the selected position of the monitoring target spot and is arranged at a position 5-50 m outside the landslide hidden danger body.
A landslide geological disaster deformation monitoring system based on video identification comprises an intelligent gateway industrial personal computer, a camera, an audible and visual alarm and a direct-current power supply.
The intelligent gateway industrial personal computer comprises a processor, a memory and a computer program which is stored in the memory and runs on the processor, and the processor executes the program to realize the following steps:
(1) starting a program and performing initialization operation, setting the frame rate of a transmission code stream of a video camera to be 25Hz and the refresh rate of data processing to be 10Hz through the initialization operation, and storing a data folder;
(2) after the first installation, the areas of each monitoring target point and each reference target point are framed and selected through a video picture, the framing and selection should be carried out by considering the possible deformation direction and deformation amount of the actual measured object when the framing and selection is carried out, and a trigger threshold value is set;
(3) the system calculates the image data of the framed monitoring target point and the reference target point, and respectively calculates the average values of the imaging area codes in the horizontal direction and the vertical direction to obtain the coordinate values of the respective central positions in the image; and as the initial value, the subsequent measured value and this initial value carry on the difference calculation;
(4) in the measuring process, the system carries out data calculation according to the video code stream and the data processing refresh rate, and carries out difference calculation on each measured value and the initial value, and the difference is compared with a threshold value; if the current time exceeds the preset time, early warning triggering judgment is carried out;
(5) and when the landslide deformation is judged to exceed the threshold value, performing on-site/remote linkage alarm, and realizing the operation process of the monitoring system for identifying landslide deformation by video through the above process.
The camera and the audible and visual alarm are respectively connected with an intelligent gateway industrial personal computer, and a direct current power supply supplies power to the system.
The lens configuration of camera, the camera focal length that different landslide geological disaster spans configured is different, includes that 50mm to 200mm are unequal, and is the camera lens of fixed focal length.
The working principle of the monitoring system of the invention is as follows: the landslide geological disaster generally comprises a main landslide body of the landslide geological disaster, and when the main landslide body of the landslide geological disaster deforms to a certain extent, monitoring targets installed on the main landslide body of the landslide geological disaster generate corresponding position changes. At the moment, the video image of the deformation monitoring camera is shot, and the change values of the monitoring infrared emission point and the reference target point central point in the image are obtained. When the monitoring camera measures the corresponding deformation change value, the corresponding deformation change value is transmitted to the intelligent gateway industrial personal computer, and whether the deformation value is abnormal or not is judged through data analysis, processing, analysis and matching. And if the abnormal condition occurs, the audible and visual alarm warns corresponding personnel and reports the personnel to a management center for supervision.
The landslide geological disaster monitoring system has the advantages that the deformation of the monitoring point is judged through image recognition, and the acousto-optic alarm is linked, so that the landslide geological disaster monitoring which is automatic, all-weather, monitoring and managing and integrated is realized.
Drawings
FIG. 1 is a flow chart of a landslide geological disaster deformation monitoring method based on video identification according to the invention;
FIG. 2 is a schematic structural diagram of a landslide geological disaster deformation monitoring system based on video identification according to the invention;
in the figure: 1 is a monitoring target point; 2 is a landslide body; 3 is a lens; 4 is a camera; 5 is a reference target point; 6, an intelligent gateway industrial personal computer; 7 is a DC power supply; and 8, an audible and visual alarm.
Detailed Description
A specific embodiment of the present invention is shown in fig. 1.
The method for monitoring the deformation of landslide geological disasters based on video identification comprises the following steps:
(1) installing a camera and initializing a system;
(2) setting a monitoring target point and a reference target point, and setting a threshold;
(3) acquiring images, and calculating the coordinates of the central points of the monitoring target point and the reference target point; determining a variation value of the central point in the image;
(4) comparing the difference value of the measured value with the initial value, and calculating the displacement variation of the measured value;
(5) whether the threshold value is exceeded or not, if the threshold value is exceeded, alarming and judging; and (4) if the threshold value is not exceeded, returning to the step (3).
The landslide geological disaster deformation monitoring system based on video identification comprises a camera 4, an intelligent gateway industrial personal computer 6, a direct-current power supply 7, an audible and visual alarm 8, a reference target point 5 and a monitoring target point 1.
The camera 4 of the embodiment is fixedly installed in a selected position aiming at the monitoring target point 1; the camera 4 is connected with an industrial personal computer 6; the audible and visual alarm 7 is connected with the industrial personal computer 6; the direct current power supply 7 is connected with the camera 4 and the industrial personal computer 6 and provides power for the camera.
The geological deformation monitoring camera 4 identifies respective displacement values of the monitoring target point 1 and the reference target point 5 through video image processing, and calculates displacement variation quantity of the monitoring target point 1 and the reference target point 5 through a difference value with an initial value. The geological deformation monitoring camera 4 is installed at a position 5-50 m outside the landslide hidden danger body, and then is connected to the industrial personal computer 4 through a network cable to perform data storage and processing. Meanwhile, due to the difference of the geological disaster distance of the landslide main body 2, the distance shot by the deformation monitoring camera 4 is different, so that the focal lengths of the lenses 3 configured for different landslide geological disaster spans are different, are different from 50mm to 200mm, and are fixed focal lengths.
The specific implementation manner of the displacement measurement of the monitoring system of the embodiment is as follows: after the system is installed, calibration is carried out once, namely the infrared emission point 1 of the monitoring point moves up and down for a fixed and known distance L, the deformation monitoring camera 4 obtains the change C of the number of pixels of the central value, and the L/C obtained through calculation is the position value corresponding to each pixel in the image, so that calibration is completed. In actual measurement, the deformation change value of each measuring point is obtained by calculating the change number of the pixel and multiplying the change number by the L/C value.
Claims (6)
1. A landslide geological disaster deformation monitoring method based on video identification is characterized in that video images of a geological deformation surface are shot through a camera, displacement values of a monitoring target point and a reference target point are identified, and displacement variation of the displacement values is calculated through a difference value with an initial value; transmitting the measured corresponding deformation change value to an industrial personal computer of the intelligent gateway; judging whether the deformation value is abnormal or not through data analysis processing, analysis and matching; if the abnormal condition occurs, the audible and visual alarm warns corresponding personnel and reports the personnel to the management center for supervision.
2. The landslide geological disaster deformation monitoring method based on video identification as claimed in claim 1, wherein the deformation change value calculation method is as follows, after the camera is installed, a calibration is performed, that is, the monitoring target point moves up and down and is fixed to a known distance L, at this time, the camera obtains the change C of the number of pixels of the central value, and the L/C obtained through calculation is the position value corresponding to each pixel in the image, thus completing the calibration; in actual measurement, the deformation change value of each measuring point is obtained by calculating the change number of the pixel and multiplying the change number by the L/C value.
3. The landslide geological disaster deformation monitoring method based on video identification as claimed in claim 1, wherein the camera is mounted at a position 5-50 m outside the landslide hazard potential body in a manner of aiming at a selected monitoring target point.
4. The system for realizing the landslide geological disaster deformation monitoring method based on the video identification as claimed in claims 1-3 comprises an intelligent gateway industrial personal computer, a camera, an audible and visual alarm and a direct current power supply;
the intelligent gateway industrial personal computer comprises a processor, a memory and a computer program which is stored in the memory and runs on the processor, and is characterized in that the processor executes the program and realizes the following steps:
(1) starting a program and performing initialization operation, setting the frame rate of a transmission code stream of a video camera to be 25Hz and the refresh rate of data processing to be 10Hz through the initialization operation, and storing a data folder;
(2) after the first installation, the areas of each monitoring target point and each reference target point are framed and selected through a video picture, the framing and selection should be carried out by considering the possible deformation direction and deformation amount of the actual measured object when the framing and selection is carried out, and a trigger threshold value is set;
(3) the system calculates the image data of the framed monitoring target point and the reference target point, and respectively calculates the average values of the imaging area codes in the horizontal direction and the vertical direction to obtain the coordinate values of the respective central positions in the image; and as the initial value, the subsequent measured value and this initial value carry on the difference calculation;
(4) in the measuring process, the system carries out data calculation according to the video code stream and the data processing refresh rate, and carries out difference calculation on each measured value and the initial value, and the difference is compared with a threshold value; if the current value exceeds the preset threshold value, early warning triggering judgment is carried out;
(5) and when the landslide deformation is judged to exceed the threshold value, carrying out on-site/remote linkage alarm, and realizing the operation process of the monitoring system for identifying landslide deformation by video.
5. The landslide geological disaster deformation monitoring system based on video identification as claimed in claim 4, wherein the camera and the audible and visual alarm are respectively connected with an intelligent gateway industrial personal computer, and a direct current power supply supplies power to the system.
6. The landslide geological disaster deformation monitoring system based on video identification as claimed in claim 4, wherein the lens configuration of the camera is different in lens focal length configured for different landslide geological disaster spans, including a lens with a fixed focal length of 50mm to 200 mm.
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| CN202210586213.1A CN114998789A (en) | 2022-05-27 | 2022-05-27 | Landslide geological disaster deformation monitoring system and method based on video identification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117168344A (en) * | 2023-11-03 | 2023-12-05 | 杭州鲁尔物联科技有限公司 | Monocular panorama looking around deformation monitoring method and device and computer equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117168344A (en) * | 2023-11-03 | 2023-12-05 | 杭州鲁尔物联科技有限公司 | Monocular panorama looking around deformation monitoring method and device and computer equipment |
| CN117168344B (en) * | 2023-11-03 | 2024-01-26 | 杭州鲁尔物联科技有限公司 | Monocular panorama looking around deformation monitoring method and device and computer equipment |
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