CN210946763U - Slope deformation monitoring system - Google Patents
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- CN210946763U CN210946763U CN201921297590.3U CN201921297590U CN210946763U CN 210946763 U CN210946763 U CN 210946763U CN 201921297590 U CN201921297590 U CN 201921297590U CN 210946763 U CN210946763 U CN 210946763U
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Abstract
The utility model discloses a side slope deformation monitoring system, which comprises a monitoring device arranged far away from the side slope, a plurality of target lamps and a set of reference lamp group arranged on the side slope, wherein the monitoring device comprises a control unit, a CCD detector, a lens and an optical filter, and the central wavelength of the optical filter is matched with the light-emitting spectral lines of the target lamps and the reference lamp group; the target lamps are arranged at the monitored part of the side slope, the reference lamp group comprises three reference lamps and an L-shaped component consisting of a vertical supporting rod and a transverse supporting rod, and the three reference lamps are respectively arranged at the intersection of the two ends and the center of the L-shaped component. The utility model discloses a CCD camera acquires the digital image of a plurality of targets of side slope surface setting, through the image processing method, gives the side slope surface displacement and changes, realizes side slope surface displacement panorama, real-time, long-range, high accuracy monitoring, and the target is chooseed for use and is set up the light filter that corresponds the wavelength before infrared LED lamp, CCD, has realized all-weather measurement, has stronger suitability.
Description
Technical Field
The utility model belongs to the technical field of geotechnical engineering monitoring, a side slope deformation monitoring system is related to.
Background
With the continuous promotion of the construction of the national traffic infrastructure, more and more expressways and railways are put into operation. The side slope is one of the main factors influencing the safety of roads, personnel and property, and the maintenance and management tasks of the side slope are extremely difficult due to the influence of external environments such as geology, weather and the like. The method and the system are a basic method for evaluating the health condition of the side slope by monitoring the displacement change of the surface of the side slope, and the method and the system for measuring the displacement of the surface of the side slope in real time, long time and accurately are established, so that the method and the system have very important significance for safety evaluation, health operation and prevention and reinforcement of traffic infrastructure.
The main method for monitoring the displacement of the surface of the side slope at present comprises the following steps: (1) arranging a plurality of static level gauges on the surface of the slope, and monitoring the position change of different measuring points; (2) and arranging a measuring point on the surface of the slope, and measuring the displacement change of the measuring point through a total station. The surface displacement is monitored by adopting the static level gauge, and because each measuring point needs to be provided with one static level gauge, the monitoring cost is higher, the installation and construction difficulty is high, a large number of side slopes are in a field environment, monitoring data detection needs personnel to go to the field for obtaining, the efficiency is low, and the static level gauge becomes the maximum restriction factor of side slope displacement monitoring application; the total station is adopted for measurement, and multipoint measurement is realized by installing a target, but the cost of the total station is low, so that the monitoring cost is difficult to reduce, and the problem that data cannot be remotely acquired exists;
the Chinese patent 'a side slope surface displacement monitoring system' with the application number of 201620794009.9 introduces a measuring method for realizing side slope surface displacement by adopting a GPS, which comprises a data acquisition module MOXA device for monitoring the side slope surface displacement, wherein the MOXA device is connected with the GPS device, real-time data of the side slope displacement can be obtained for a long time, the side slope stability condition is determined by analyzing displacement data, and the motion process and the range after the side slope instability are judged. The method has the problems that real-time data calculation is needed, the measuring method is complex, and the precision is not high.
SUMMERY OF THE UTILITY MODEL
With the development of computer technology and digital image processing technology, the displacement detection method based on the CCD digital image processing technology is applied to bridges, tunnels, large structural members and the like, has the characteristics of no contact, simplicity, convenience, rapidness and high economy, and can realize rapid data processing and remote real-time monitoring.
The utility model provides a side slope surface displacement monitoring method based on CCD sensor numerical value image processing, aiming at the technical problems of crack detection in the current side slope displacement monitoring, which realizes the remote real-time absolute measurement of the side slope panoramic surface displacement in all weather by installing a measuring target lamp and a reference target lamp on the side slope, improves the monitoring cost effectiveness ratio and the measuring precision,
the technical scheme of the utility model as follows:
a slope deformation monitoring system comprises a monitoring device arranged at a position far away from a slope, a plurality of target lamps arranged on the slope and a set of reference lamp set,
the monitoring device comprises a control unit, a CCD detector, a lens and an optical filter, wherein the lens is arranged in front of the CCD detector, and the optical filter is arranged between the lens and the CCD detector; the central wavelength of the optical filter is matched with the light-emitting spectral lines of the target lamp and the reference lamp group;
the target lamp is arranged at the monitored part of the side slope, the reference lamp group is arranged in the central area of the side slope, and the target lamp and the reference lamp group are in the visual field range of the CCD detector; the reference lamp group comprises three reference lamps and an L-shaped component consisting of a vertical supporting rod and a transverse supporting rod, wherein the three reference lamps are respectively arranged at the intersection of the two ends and the center of the L-shaped component.
In the slope deformation monitoring system, the control unit comprises a single chip microcomputer, and a GPS module, a wireless transmission module and an image acquisition card which are electrically connected with the single chip microcomputer, wherein the image acquisition card is electrically connected with the CCD detector.
The target lamp and the reference lamp are LED lamps with wavelength of 808 nm. In the above-mentioned slope deformation monitoring system,
in the slope deformation monitoring system, the optical filter is a narrow-pass optical filter with the central wavelength of 800nm and the half width of 20-30 nm.
In the slope deformation monitoring system, the vertical supporting rod and the transverse supporting rod are metal rods with known lengths.
In the slope deformation monitoring system, the optical filter is arranged close to the photosensitive element of the CCD detector.
In the slope deformation monitoring system, the lens is fixed in the lens cylinder, the CCD detector is fixed on the CCD cylinder, and the adjusting thread is arranged between the CCD cylinder and the lens cylinder.
In the slope deformation monitoring system, the wireless transmission module is a 4G or 5G wireless transmission module.
The utility model discloses the beneficial technological effect who has does:
1. the utility model adopts the CCD camera to acquire the digital images of a plurality of targets arranged on the surface of the side slope, and gives the displacement change of the surface of the side slope through an image processing method, thereby realizing panoramic, real-time, remote and high-precision monitoring of the displacement of the surface of the side slope and reducing the monitoring cost of the side slope; wherein the target selects an infrared LED lamp and a filter with a corresponding wavelength arranged in front of the CCD, and filters out background light in the daytime, thereby realizing all-weather measurement and having stronger applicability.
2. The utility model discloses a three benchmark lamps that set up along X, Y axle directions have satisfied the calibration demand of the different CCD sensors of partial cross axle and the different CCD sensors of axis of ordinates pixel resolution as the calibration target of CCD sensor cross axle and axis of ordinates pixel, have realized the absolute measurement of side slope surface along X, Y axle direction displacement variation parameter. Meanwhile, a wireless data transmission mode is combined with GPS time service, so that remote real-time monitoring of data is realized, monitoring timeliness is improved, and labor cost for monitoring a slope in a field environment is reduced.
Drawings
FIG. 1 is a schematic diagram of the slope deformation monitoring system of the present invention;
FIG. 2 is a schematic view of the installation of the beacon light and the reference light on a slope according to the present invention;
fig. 3 is a schematic structural view of the monitoring device of the present invention;
fig. 4 is the utility model discloses side slope deformation monitoring system control unit's component schematic diagram.
The reference signs are: 1-side slope; 2-target lamp; 3-vertical supporting rod; 4-a cross strut; 5-a reference lamp; 10-a housing; 11-a lens; 12-an optical filter; 13-a CCD detector; 14-a single chip microcomputer; 15-a GPS module; 16-a wireless transmission module; 17-a control unit; 18-image acquisition card; 19-remote terminal computer; 20-a lens cylinder; 21-thread; 22-a CCD cylinder; 23-cartridge cover.
Detailed Description
As shown in fig. 1 and 2, the utility model discloses a side slope deformation monitoring system, include keeping away from side slope 1 position installation CCD monitoring devices, set up a plurality of target lamps 2 and one set of benchmark banks on the side slope, wherein monitoring devices sets up at the fixed position that does not change along with the deformation displacement. A plurality of LED lamps are installed on a side slope as a target during use, a CCD camera at the far end is used for shooting images of the LED target displacement along with the side slope, imaging results are transmitted to a monitoring device, and displacement parameters of the side slope are obtained through image processing calculation.
The monitoring device comprises a control unit 1, a CCD detector 13, a lens 11 and a filter 12, wherein the lens 11 is arranged in front of the CCD detector 13, and the filter 12 is arranged between the lens 11 and a CCD camera 13; the central wavelength of the optical filter 12 is matched with the luminous spectral lines of the target lamp 2 and the reference lamp group; the CCD lens detector 13 images all targets on the position of the side slope to be monitored through the lens 11, calculates and records the image position of each LED target lamp in each frame of image, and further obtains the displacement change of the side slope.
In order to realize all-weather measurement in daytime and at night, the target is an electrified infrared LED lamp, a high-power LED lamp with the wavelength of 808nm which is invisible to human eyes is selected, and meanwhile, the optical filter 12 is a narrow-pass optical filter with the central wavelength of 800nm and the half width of 20-30nm, so that external background light in daytime can be filtered, and the phenomenon that the external background light is coupled into a CCD and becomes background noise is avoided. The mode is suitable for monitoring at different time intervals (day and night), and meanwhile, the imaging requirements of different distances can be met by adjusting the brightness of the LED lamp.
According to the principle introduction, the displacement of the slope is reflected in the pixel position change of different LED lamps on the CCD. In order to realize absolute measurement of displacement, calculation needs to be performed according to the equivalence of the optical lens, which often brings large errors. In order to realize absolute measurement of displacement, the utility model arranges the target lamp 2 at the monitored part of the side slope 1, arranges the reference lamp group in the central area of the side slope 1, and arranges the target lamp 2 and the reference lamp group in the visual field range of the CCD detector 13; the reference lamp group comprises three reference lamps 5 and an L-shaped component consisting of a vertical supporting rod 3 and a transverse supporting rod 4, wherein the three reference lamps 5 are respectively arranged at the intersection of the two ends and the center of the L-shaped component, so that the X-axis reference and the Y-axis reference are formed. The reason why the CCD image is calibrated in the X-axis and Y-axis directions, respectively, is that the existing partial CCD sensors need to be calibrated separately because the pixel resolutions in the horizontal and vertical directions are different.
Because the lengths of the vertical supporting rod 3 and the transverse supporting rod 4 are known, and the rigid structure of the supporting rods is combined, the positions of the reference lamps are unchanged and the distances between the reference lamps are known when the side slope is displaced, so that the conversion relation between the distances between the pixels on the image and the actual lamp distances can be obtained according to the positions of the pixels of the two reference lamps on the CCD and the distances between the two reference lamps during image processing, and further, the change of the pixels of the measuring target lamp 2 on the CCD can be converted into the change of the displacement, so that the absolute displacement measurement is realized.
For example, under the condition that the optical parameters are kept unchanged, two frames of images at different moments are compared, image analysis software finds that the displacement of a certain target lamp in the direction of the X axis changes by a pixel, the displacement of the certain target lamp in the direction of the Y axis changes by b pixels, the distance between two reference lamps on the X axis in a certain frame of image is c pixels, and the distance between two actual reference lamps is X meters; the distance between two reference lamps on the Y axis is d pixels, and the actual distance is Y meters. The displacement of the target lamp in the X-axis direction can be calculated as: a x/c meters; the displacement in the Y-axis direction is: b x y/d meters. The utility model discloses well vertical support rod 3 and cross-support rod 4 are the iron set that length is 60cm, and wherein the length of erecting two benchmark lamps of branch 3 and cross-support rod 4 is 50 cm.
Fig. 3 shows a schematic structural diagram of the monitoring device of the present invention. In the figure, a lens 11 is fixed in a lens cylinder 20, a CCD detector 13, a light filter 12 and a circuit board are fixed on a CCD cylinder 22, an adjusting thread 21 is arranged between the CCD cylinder 22 and the lens cylinder 20, and the distance between the lens 11 and the CCD detector 13 can be adjusted by rotating the CCD cylinder 22 and the lens cylinder 20, so that the aim of focusing is fulfilled, and a clear image is formed on the CCD detector 13. The tail part of the lens cylinder 20 is provided with a cylinder cover 23, the CCD detector 13 is welded on a circuit board 24 and is fixed on the cylinder cover 23 through screws, and the optical filter 12 is tightly attached to a photosensitive element of the CCD detector 13, so that the phenomenon that external stray light is coupled into the detector to form background noise is avoided.
As shown in fig. 4, the control unit 17 includes a single chip 14, and a GPS module 15, a wireless transmission module 16 and an image acquisition card 18 electrically connected to the single chip, where the image acquisition card 18 is electrically connected to the CCD detector 13 to acquire images of the CCD. The single chip microcomputer 14 controls the image acquisition card 18 to acquire images, processes and stores image data, and then sends the image data to the remote terminal computer 19 at a far end through the wireless transmission module 16, the remote terminal computer 19 gives an optical equivalent conversion formula according to the relation between the reference lamp and the target lamp 2, and finally, an absolute displacement value is obtained through calculation. The single chip microcomputer adopts STM32F429 or similar chips, and the main functions of the single chip microcomputer are used for realizing acquisition triggering of the image sensor and storage and processing control of image data. The wireless transmission module 16 adopts a mature 4G or 5G wireless transmission module, and is connected with the singlechip through an RS232 or RS485 interface to perform wireless transmission of data.
The remote terminal computer 19 adopts a traditional image processing scheme when processing an image, carries out processing such as smoothing, sharpening, corrosion, expansion, denoising and the like on a shot target lamp graph on a side slope to obtain a clear outline of a target light source, carries out binarization processing and boundary extraction on the image, then fits a circle center through a least square method, calculates the position change of the circle center of the target light source so as to obtain the displacement of the target lamp, and finally obtains the transverse displacement and the longitudinal settlement value of the side slope by combining the conversion relation between CCD pixels and actual distances.
The utility model discloses an accurate measurement precision of side slope displacement reaches the mm level, and time resolution is 10ms level, and one set of measurement system can realize hundreds of square meters side slope area's displacement monitoring, has good application effect.
The foregoing is a more detailed description of the present invention taken in conjunction with the accompanying drawings, which are not intended to limit the invention to the particular embodiments described herein. For those skilled in the art to which the invention pertains, equivalent substitutes or obvious modifications may be made without departing from the spirit of the invention, and the same properties or uses are deemed to be within the scope of the invention as determined by the claims as filed.
Claims (8)
1. The utility model provides a side slope deformation monitoring system which characterized in that: comprises a monitoring device arranged at a position far away from a side slope (1), a plurality of target lamps (2) arranged on the side slope and a set of reference lamp group,
the monitoring device comprises a control unit (17), a CCD detector (13), a lens (11) and an optical filter (12), wherein the lens (11) is arranged in front of the CCD detector (13), and the optical filter (12) is arranged between the lens (11) and the CCD detector (13); the central wavelength of the optical filter (12) is matched with the light-emitting spectral lines of the target lamp (2) and the reference lamp group;
the target lamp (2) is arranged at the monitored part of the side slope (1), the reference lamp group is arranged in the central area of the side slope (1), and the target lamp (2) and the reference lamp group are in the visual field range of the CCD detector (13) imaging; the reference lamp group comprises three reference lamps (5) and an L-shaped component consisting of a vertical supporting rod (3) and a transverse supporting rod (4), wherein the three reference lamps (5) are respectively arranged at the intersection of the two ends and the center of the L-shaped component.
2. A slope deformation monitoring system according to claim 1, characterized in that: the control unit (17) comprises a singlechip (14), and a GPS module (15), a wireless transmission module (16) and an image acquisition card (18) which are electrically connected with the singlechip, wherein the image acquisition card (18) is electrically connected with the CCD detector (13).
3. A slope deformation monitoring system according to claim 1, characterized in that: the target lamp (2) and the reference lamp (5) are LED lamps with wavelength of 808 nm.
4. A slope deformation monitoring system according to claim 1, characterized in that: the optical filter (12) is a narrow-pass optical filter with the central wavelength of 800nm and the half width of 20-30 nm.
5. A slope deformation monitoring system according to claim 1, characterized in that: the vertical supporting rod (3) and the transverse supporting rod (4) are both metal rods with known lengths.
6. A slope deformation monitoring system according to claim 1, characterized in that: the filter (12) is arranged close to the photosensitive element of the CCD detector (13).
7. A slope deformation monitoring system according to claim 1, characterized in that: the lens (11) is fixed in the lens cylinder (20), the CCD detector (13) is fixed on the CCD cylinder (22), and an adjusting thread (21) is arranged between the CCD cylinder (22) and the lens cylinder (20).
8. A slope deformation monitoring system according to claim 1, characterized in that: the wireless transmission module (16) is a 4G or 5G wireless transmission module.
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| CN201921297590.3U CN210946763U (en) | 2019-08-12 | 2019-08-12 | Slope deformation monitoring system |
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| CN201921297590.3U CN210946763U (en) | 2019-08-12 | 2019-08-12 | Slope deformation monitoring system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947605A (en) * | 2020-08-20 | 2020-11-17 | 上海同禾工程科技股份有限公司 | Slope safety monitoring system and monitoring method thereof |
| CN112325789A (en) * | 2021-01-04 | 2021-02-05 | 中南大学 | Method for measuring deformation and displacement in model test based on image processing |
| CN112461147A (en) * | 2020-10-16 | 2021-03-09 | 深圳大学 | Bridge dynamic deformation monitoring method and system based on visual measurement technology |
| CN112539708A (en) * | 2020-12-16 | 2021-03-23 | 北京北大千方科技有限公司 | Three-dimensional monitoring system, method, medium and equipment for slope deformation |
| CN114383575A (en) * | 2021-12-22 | 2022-04-22 | 中国测绘科学研究院 | Geological disaster monitoring method for gyroscope-assisted close-range survey |
| CN116734744A (en) * | 2023-06-21 | 2023-09-12 | 南京细柳智能科技有限公司 | Online camera displacement light measurement method and system based on infrared target |
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2019
- 2019-08-12 CN CN201921297590.3U patent/CN210946763U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947605A (en) * | 2020-08-20 | 2020-11-17 | 上海同禾工程科技股份有限公司 | Slope safety monitoring system and monitoring method thereof |
| CN111947605B (en) * | 2020-08-20 | 2023-05-09 | 上海同禾工程科技股份有限公司 | Slope safety monitoring system and monitoring method thereof |
| CN112461147A (en) * | 2020-10-16 | 2021-03-09 | 深圳大学 | Bridge dynamic deformation monitoring method and system based on visual measurement technology |
| CN112539708A (en) * | 2020-12-16 | 2021-03-23 | 北京北大千方科技有限公司 | Three-dimensional monitoring system, method, medium and equipment for slope deformation |
| CN112539708B (en) * | 2020-12-16 | 2022-08-16 | 北京北大千方科技有限公司 | Three-dimensional monitoring system, method, medium and equipment for slope deformation |
| CN112325789A (en) * | 2021-01-04 | 2021-02-05 | 中南大学 | Method for measuring deformation and displacement in model test based on image processing |
| CN114383575A (en) * | 2021-12-22 | 2022-04-22 | 中国测绘科学研究院 | Geological disaster monitoring method for gyroscope-assisted close-range survey |
| CN114383575B (en) * | 2021-12-22 | 2024-03-22 | 中国测绘科学研究院 | Geological disaster monitoring method for gyroscope-assisted close-range measurement |
| CN116734744A (en) * | 2023-06-21 | 2023-09-12 | 南京细柳智能科技有限公司 | Online camera displacement light measurement method and system based on infrared target |
| CN116734744B (en) * | 2023-06-21 | 2024-04-05 | 南京细柳智能科技有限公司 | Online camera displacement light measurement method and system based on infrared target |
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Address after: 710119 No. 30, Zhangbaba Road, High tech Zone, Xi'an, Shaanxi Patentee after: Shaanxi Traffic Control Engineering Technology Co.,Ltd. Address before: 710117 No. 30, Zhangba Road, high tech Zone, Xi'an, Shaanxi Patentee before: Shaanxi Jiaojiao Highway Engineering Test and Inspection Co.,Ltd. |