CN111947605A - Slope safety monitoring system and monitoring method thereof - Google Patents
Slope safety monitoring system and monitoring method thereof Download PDFInfo
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- CN111947605A CN111947605A CN202010842378.1A CN202010842378A CN111947605A CN 111947605 A CN111947605 A CN 111947605A CN 202010842378 A CN202010842378 A CN 202010842378A CN 111947605 A CN111947605 A CN 111947605A
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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
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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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
- G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning
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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
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/14—Rainfall or precipitation gauges
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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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
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
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Abstract
The invention relates to a slope safety monitoring system, which comprises a target, a rain gauge, a camera device, an alarm screen, a camera system, a local RTU (remote terminal unit) and data checking equipment, wherein the camera device can be used for shooting image information of a slope and a flood discharge ditch; the camera system can observe each target arranged on the surface of the side slope in real time; when raining, the rain gauge transmits rainfall value information to the local RTU in real time, the local RTU adjusts the sampling frequency of the camera system and the camera device according to the rainfall so as to carry out encryption sampling on the target, the side slope body and the flood discharge ditch, and transmits sampling image information to the local RTU; the local RTU carries out on-site calculation analysis and event recognition on the acquired image information and the acquired real-time digital information of the target, sends the corresponding digital information and the calculation analysis result to the cloud end and starts the alarm screen, the corresponding alarm information is displayed on the alarm screen, and the local RTU controls the camera system and the camera device to adjust the sampling frequency according to the on-site calculation analysis result so as to monitor the side slope.
Description
Technical Field
The invention relates to the field of slope monitoring, in particular to a slope safety monitoring system with early warning capability and a monitoring method thereof.
Background
The development of traffic engineering in China is in the forefront of the world, and the construction of roads and railways inevitably forms a large number of artificial slopes. In the past, slope instability and landslide accidents occur continuously, and a lot of casualties and property loss are caused. The safety monitoring of the side slope is an important guarantee for the operation of highways and railways. But the technology for monitoring the slope safety has not been developed in a breakthrough manner.
There are many common methods for monitoring slope safety, and the common methods include an inclinometer deformation monitoring method: the method is a method for measuring an inclination angle by using an inclinometer to obtain horizontal displacement, the method needs to embed expensive inclinometer pipes in a side slope, and a large amount of manpower and material resources are needed for early-stage measurement point arrangement; the GNSS deformation monitoring method comprises the following steps: when the technology is used for slope deformation monitoring, a GNSS network needs to be arranged, a reference point is required to be arranged in a stable area far away from a deformation area, and besides high cost, a monitoring system is also easily influenced by regional electronic interference and intensity change of a satellite geometric figure, so that the measurement efficiency is reduced; the pressure difference type measurement and bidirectional dip angle integrated monitoring method comprises the following steps: the measuring instrument needs to be buried in the slope, the cable and the water pipe need to be laid, installation is complex, and the instrument, the cable and the water pipe need to be protected comprehensively.
The inclined flood discharge ditch on the side slope and the horizontal flood discharge ditch at the bottom of the side slope are used for introducing rainwater on the side slope into an underground water well system on a road and preventing rainwater from permeating into the side slope to cause the side slope to slide. Once the flood discharge ditch enters silt and is silted up, or the flood discharge ditch is cracked or locally damaged along with the deformation of the side slope, the effect of guiding rainwater cannot be achieved, and potential safety hazards can be caused to the side slope in a period of time.
At present, slope safety monitoring methods are used for monitoring and early warning of the stability and deformation of a slope, but slope landslide is sudden and destructive, once the slope landslide occurs, related facilities of a road are damaged, and great threats are formed on safety of coming and going people and vehicles. The slope stability monitoring system only monitors the stability of the slope, often, a damage accident can happen quickly when the slope is found to have landslide signs, early warning cannot be achieved, and therefore disasters caused by the accident can be avoided, and the slope and flood discharge ditch event monitoring system is also particularly important for monitoring the events of the slope and the flood discharge ditch.
The invention discloses a side slope displacement and inclination angle monitoring device, which comprises a hydraulic settlement detection and inclination angle detection integrated monitor, a reference liquid level tank, a data sampler, a laser range finder and a data acquisition controller, wherein the laser range finder is connected with the data acquisition controller through a cable; however, the monitoring device needs to arrange the hydraulic communicating pipe and the cable on the side slope and arrange the protection device, the installation mode is complicated, the cost is high, the hydraulic communicating pipe is easy to damage, the measurement precision is low, and the monitoring device does not have the function of early warning.
Therefore, it is necessary to provide a slope safety monitoring system and a monitoring method thereof with low cost, easy layout, high measurement accuracy and early warning function, so as to solve the above problems.
Disclosure of Invention
In order to improve the prior art, the invention provides a machine vision-based slope safety monitoring system with early warning capability and a monitoring method thereof, which can monitor real-time dynamic displacement and turning angle of a slope and can give early warning prompt of landslide in advance through event identification.
In order to achieve the purpose, the invention provides a slope safety monitoring system which comprises a plurality of targets arranged on the surface of a slope, a rain gauge arranged on the slope, a camera device arranged on the slope, alarm screens arranged at two ends of a road, a camera system arranged on the side slope and in the oblique direction of the slope, a local RTU with resolving capability and data viewing equipment, wherein the camera device can be used for shooting image information of the slope and a flood discharge ditch; the camera system can observe each target arranged on the surface of the slope in real time, and identify the number, initial information and real-time digital information of each target according to the target, wherein the initial information comprises the size, initial coordinates and initial corners of the target, and the real-time digital information comprises the transverse and vertical bidirectional displacement change value, the angle change value and the displacement rate of the target; the local RTU is in communication connection with the camera device through a network, and performs sampling frequency setting and control on the camera device to acquire image information of the side slope and the flood discharge ditch shot by the camera device; the local RTU is in communication connection with the camera system through a network, and is used for setting and controlling parameters of the camera system to acquire real-time digital information of the target observed by the camera system; the local RTU is in communication connection with the alarm screen through a network, and controls the alarm screen to display corresponding alarm information on the alarm screen; the rainfall meter is in communication connection with the local RTU through a network, when raining, the rainfall meter transmits rainfall value information to the local RTU in real time, and the local RTU adjusts the sampling frequency of the camera system and the camera device according to the rainfall so as to carry out encryption sampling on the target, the slope body and the flood discharge ditch and transmit sampling information to the local RTU; the local RTU carries out on-site resolving analysis and event recognition on the acquired image information and target real-time digital information, meanwhile, the local RTU sends the corresponding digital information and resolving analysis results to the cloud data viewing equipment in a wireless transmission mode to be consulted and starts an alarm screen, corresponding alarm information is displayed on the alarm screen, and the local RTU controls the camera system and the camera device to adjust sampling frequency according to the on-site resolving analysis results to monitor the side slope.
The target further includes a logo code for being recognized by the imaging system and an illumination device having a light emitting function at night.
Furthermore, the targets are arranged on the surface of the slope in a contour line in multiple rows or in a grid-shaped staggered manner.
Furthermore, a foundation is arranged at the stable position of the side slope, and the camera system is installed on the foundation.
Furthermore, the data viewing equipment can look up corresponding digital information and a resolving analysis result uploaded to the cloud end through wireless network communication, and can remotely and locally perform interactive communication with an RTU.
Furthermore, the data viewing device is an electronic device such as a computer, a tablet computer or a smart phone which can perform human-computer interaction through wireless network communication.
Further, the network communication is wired network communication or wireless network communication transmitted in a 3G, 4G, 5G or WIFI manner.
The invention also provides a slope safety monitoring method, which is implemented by using the slope safety monitoring system according to the following steps in sequence:
1) arranging a plurality of targets on the surface of the monitored side slope in a mode of arranging contour lines in a multi-row mode or in a mode of arranging the targets in a grid-shaped staggered mode;
installing a rain gauge on the monitored side slope;
installing a camera device on the monitored side slope, and adjusting the camera device to enable the camera device to observe the side slope and the flood discharge ditch;
alarm screens are arranged at two ends of a road;
2) setting a foundation at the stable position of the lateral oblique side of the monitored side slope, installing a camera system on the foundation, and adjusting the camera system to observe all targets on the side slope;
3) a local RTU is arranged at the side of the camera system, and is in network communication connection with the rain gauge, the camera device, the alarm screen and the camera system;
4) opening a switch of the local RTU; the method comprises the steps that initial setting is carried out on a camera system through a local RTU, the camera system is instructed to search and identify all targets set on a slope, and initial information of all targets is recorded; carrying out initial setting on the camera device through a local RTU (remote terminal Unit), and commanding the camera device to shoot initial images of the side slope and the flood discharge ditch;
5) a user can monitor and control a local RTU on site, and can also interactively confirm with the local RTU remotely through a data viewing equipment interface, and input a plurality of groups of sampling frequencies, various early warning values (including displacement early warning values, angle early warning values, displacement rate early warning values, image deviation early warning values and the like of a target);
6) the monitoring is started. The local RTU controls the camera system to recognize real-time position information and real-time angle information of all targets according to a set sampling frequency, and transmits the position information and the angle information to the local RTU, and the local RTU compares the acquired real-time information with the initial information, analyzes the data and calculates a displacement value and an inclination angle value of slope slippage; the local RTU controls the camera device to sample the side slope body and the flood discharge ditch according to the set sampling frequency, and transmits the sampled real-time image information to the local RTU, and the local RTU compares the real-time image information with the initial image information to obtain an image deviation value and uploads the real-time image information and the image deviation value to the cloud end;
further, in step 6), if the initial displacement coordinate of a target is A (x)0，y0) And an initial angle value of phi0When the side slope slips, the real-time displacement coordinate monitored by the camera system is A1(x1，y1) And the real-time angle value is phi1When the real-time displacement value parameter, the angle value parameter and the displacement rate parameter exceed the early warning value, the local RTU adjusts the information identification frequency of the camera system to the target so as to further enhance the monitoring of the target information and timely warn the current slope sliding condition, the local RTU also sends the field calculation analysis result to the alarm screens at two ends of the road in a network communication mode according to the alarm information of corresponding level, corresponding alarm information and image information for prompting that the slope is dangerous can be displayed on the alarm screens, and an acousto-optic alarm is sent out The rate increases synchronously with the sampling frequency of the camera system), the slope body and the flood discharge ditch are subjected to encryption sampling, and the sampled image information is transmitted to a local RTU (remote terminal Unit), and the local RTU carries out real-time image information and initial image informationAnd comparing, if the image deviation exceeds a preset image deviation value parameter, sending the real-time image information and the comparison result to the cloud end by the local RTU in a wireless communication mode, and sending a prompt to the data checking equipment of the connection network to prompt monitoring personnel that potential safety hazards exist on the slope.
Further, in step 6), during rainfall, the rain gauge collects rainfall values in real time and wirelessly transmits the rainfall values to the local RTU, and if the rainfall value information returned by the rain gauge is less than 10 mm/day, the camera device transmits the real-time image information of the side slope and the flood discharge ditch to the local RTU at the frequency of once observation for 30 minutes; if the rainfall value information returned by the rain gauge is between 10 mm/day and 25 mm/day, the camera device transmits the real-time image information of the side slope and the flood discharge ditch to a local RTU at the frequency of one-time observation in 10 minutes; if the rainfall value information returned by the rain gauge is between 25 mm/day and 50 mm/day, the camera device transmits the real-time image information of the side slope and the flood discharge ditch to a local RTU at the frequency of one observation for 5 minutes; meanwhile, the sampling frequency of the camera system can be correspondingly increased according to the increase of rainfall (the sampling frequency of the camera system and the sampling frequency of the camera device can be artificially set to be increased synchronously).
The invention has the following beneficial effects:
the slope is usually rapid due to deformation such as displacement and corner, and can slide immediately, and monitoring personnel are not as good as evacuation of field personnel and articles after learning slope danger information. According to the invention, the key elements influencing the side slope sliding are monitored, namely, the event identification is carried out on the side slope flood discharge ditch, so that the risk of sliding of a part of side slopes can be avoided from the source. Meanwhile, the alarm screens are arranged at the two ends of the road of the monitored side slope, so that once a side slope sliding accident occurs, drivers at the two ends of the road can be reminded in time not to enter a dangerous road section, and casualties and property loss are prevented.
Drawings
FIG. 1 is a schematic structural diagram of a slope safety monitoring system according to the present invention;
fig. 2 is a schematic side view of fig. 1 from the direction a-a before and after the slope is slid.
In the figure: 1. side slope; 2. arranging flood ditches; 3. a road; 4. a foundation; 11. a target; 12. a rain gauge; 13. a camera device; 14. an alarm screen; 15. a camera system; 16. a local RTU; 17. a data viewing device.
Detailed Description
The invention is further illustrated by the following embodiments with reference to fig. 1 and 2.
Referring to fig. 1, the invention discloses a slope safety monitoring system, which is used for monitoring the sliding condition of a slope 1 and the drainage fault condition of a flood discharge ditch 2, and an alarm screen 14 is arranged on a road 3 to give out corresponding alarm.
The slope safety monitoring system comprises a plurality of targets 11 arranged on the surface of a slope 1, a rain gauge 12 arranged at the top of the slope 1, camera devices 13 arranged at two sides of the top of the slope 1, alarm screens 14 arranged at two ends of a road 3, a camera system 15 arranged on a foundation 4 of a side slope of the slope 1, a local RTU16 with resolving capability and data viewing equipment 17.
The target 11 includes a logo for recognition by the imaging system 15 and an illumination device having a light-emitting function at night. The targets 11 are arranged on the surface of the slope 1 in a contour line in multiple rows or in a grid-shaped staggered manner.
The top of the side slope 1 is provided with a rain gauge 12 for monitoring the rainfall under rainfall conditions. The rain gauge 12 is communicatively connected to the local RTU16 via a wireless network. The camera devices 13 arranged on two sides of the top of the side slope 1 can shoot image information of the side slope 1 and the flood discharge ditch 2 in real time. The local RTU16 is in communication connection with the camera 13 via a wired or wireless network, and sets and controls the sampling frequency of the camera 13 to obtain the image information of the slope 1 and the flood discharge ditch 2 captured by the camera 13. During rainfall, the rain gauge 12 transmits rainfall value information to the local RTU16 in real time, the local RTU16 adjusts sampling frequencies of the camera system 15 and the camera device 13 according to the rainfall so as to encrypt and sample the target 11, the slope 1 body and the flood discharge ditch 2, and transmits sampled image information to the local RTU 16.
Alarm screens 14 are arranged on two sides of a road 3 in front of the side slope 1, and the alarm screens 14 are connected with the local RTU16 through wireless network communication and controlled by the local RTU16 to display corresponding alarm information on the alarm screens 14 for the passing vehicles to check.
A stable position is found at the side slope of the slope 1 to set a foundation 4, and the camera system 15 is installed on the foundation 4 to ensure the stability of the monitoring process of the camera system 15. The camera system 15 can observe each target 11 arranged on the surface of the side slope 1 in real time, and identify the number, the initial information and the real-time digital information of the target 11 according to the mark code of the corresponding target 11. The initial information includes the size, initial coordinates and initial rotation angle of the target 11; the real-time digital information includes a horizontal and vertical bidirectional displacement change value, an angle change value and a displacement rate of the target 11. The local RTU16 is in communication connection with the camera system 15 through a wired or wireless network, and is used for setting and controlling parameters of the camera system 15, acquiring real-time digital information of the target 11 observed by the camera system 15, performing on-site calculation analysis and event identification on the real-time digital information, sending corresponding digital information and calculation analysis results to the cloud data viewing device 17 in a wireless transmission mode for viewing and starting the alarm screen 14, and displaying corresponding alarm information on the alarm screen 14 for viewing by vehicles coming and field personnel. And the local RTU16 controls the camera system 15 and the camera device 13 to adjust the sampling frequency according to the field calculation analysis result so as to monitor the slope 1.
The data viewing device 17 can review the corresponding digital information and the analysis result uploaded to the cloud end through wireless network communication, and can remotely and interactively communicate with the local RTU 16. The data viewing device 17 is an electronic device such as a computer, a tablet computer, or a smart phone that can perform human-computer interaction through wireless network communication.
The wireless network communication in the invention is transmission communication in a 3G, 4G, 5G or WIFI mode.
The invention also provides a slope safety monitoring method with early warning capability, which is implemented according to the following steps in sequence:
1) arranging a plurality of targets 11 on the surface of the monitored slope 1 in a mode of arranging contour lines in a plurality of rows or in a mode of crisscross arrangement in a grid shape;
installing a rain gauge 12 at the top of the monitored side slope 1;
installing camera devices 13 on two sides of the top of the monitored side slope 1, and adjusting the camera devices 13 to enable the camera devices to observe the side slope 1 and the flood discharge ditch 2;
alarm screens 14 are arranged at two ends of the road 3;
2) arranging a foundation 4 at a stable position of a lateral slope of the monitored side slope 1, installing a camera system 15 on the foundation 4, and adjusting the camera system 15 to observe all targets 11 on the side slope 1;
3) a local RTU16 is arranged at the side of the camera system 15, the local RTU16 is in wired or wireless network communication connection with the camera system 15 and the camera device 13, and the local RTU16 is in wireless network communication connection with the rain gauge 12 and the alarm screen 14;
4) open the switch of local RTU 16; the camera system 15 is initially set through the local RTU16, the camera system 15 is instructed to search and identify all targets 11 set on the slope 1, and initial information of all targets 11 is recorded; the method comprises the steps that initial setting is carried out on a camera device 13 through a local RTU16, and the camera device 13 is instructed to shoot initial images of a side slope 1 and a flood discharge ditch 2;
5) a user can monitor and control the local RTU16 on site, and can also interactively confirm with the local RTU16 remotely through the interface of the data viewing equipment 17, and input a plurality of groups of sampling frequencies and parameters such as various early warning values (including a displacement early warning value, an angle early warning value, a displacement rate early warning value and an image deviation early warning value of the target 11) and the like;
6) the monitoring is started, the local RTU16 controls the camera system 15 to recognize the real-time position information and the real-time angle information of all targets 11 according to the set sampling frequency, the position information and the angle information are transmitted to the local RTU16, the local RTU16 compares the acquired real-time information with the initial information, the data are analyzed, and the displacement value and the inclination angle value of the side slope 1 slippage are calculated; the local RTU16 controls the camera device 13 to sample the slope 1 body and the flood discharge ditch 2 according to the set sampling frequency, and transmits the sampled real-time image information to the local RTU16, and the local RTU16 compares the real-time image information with the initial image information to obtain an image deviation value and uploads the real-time image information and the image deviation value to the cloud;
referring to fig. 2, in step 6), if the initial displacement coordinate of a target 11 is a (x)0，y0) And an initial angle value of phi0When the side slope 1 slips, the real-time displacement coordinate monitored by the camera system 15 is A1(x1，y1) And the real-time angle value is phi1When the real-time displacement value parameter, the angle value parameter and the displacement rate parameter exceed the early warning values, the local RTU16 adjusts the camera system 15 to increase the information identification frequency of the target 11 so as to further enhance the monitoring of the information of the target 11 and timely warn the current slope 1 slip condition; the local RTU16 also sends the field calculation analysis result to the alarm screens 14 at both ends of the road 3 in a wireless communication way by the alarm information of corresponding level, the alarm screens 14 will display corresponding alarm information and image information which indicate that the slope 1 is dangerous, and send out acousto-optic alarm, at the same time, the local RTU16 also sends the data information and the analysis result when the early warning occurs to the cloud end in a wireless communication way, and alarms the data checking device 17 connected with the network, and indicates that the monitoring personnel have a slip risk on the slope 1, the local RTU16 also controls the camera 13 to increase the sampling frequency according to the field calculation analysis result (the sampling frequency of the camera 13 can be manually set to be increased synchronously with the sampling frequency of the camera system 15), the slope 1 body and the gutter 2 are encrypted and sampled and the image information is transmitted to the local RTU16, the local RTU16 compares the real-time image information with the initial image information, if the image deviation exceeds a preset image deviation value parameter, the local RTU16 sends the real-time image information and the comparison result to the cloud end in a wireless communication mode, and sends a prompt to the data viewing equipment 17 connected with the network to prompt monitoring personnel that potential safety hazards exist on the slope;
in step 6), during rainfall, the rain gauge 12 collects a rainfall value in real time and wirelessly transmits the rainfall value to the local RTU16, and if the rainfall value information returned by the rain gauge 12 is less than 10 mm/day, the camera 13 transmits the real-time image information of the side slope 1 and the flood discharge ditch 2 to the local RTU16 at the frequency of once observation in 30 minutes; if the rainfall value information returned by the rain gauge 12 is between 10 mm/day and 25 mm/day, the camera 13 transmits the real-time image information of the side slope 1 and the flood discharge ditch 2 to the local RTU16 at the frequency of one observation for 10 minutes; if the rainfall value information returned by the rain gauge 12 is between 25 mm/day and 50 mm/day, the camera 13 transmits the real-time image information of the side slope 1 and the flood discharge ditch 2 to the local RTU16 at the frequency of one observation for 5 minutes; meanwhile, the sampling frequency of the camera system 15 can be increased according to the increase of the rainfall (the sampling frequency of the camera system 15 can be artificially set to be increased synchronously with the sampling frequency of the camera device 13).
As an example of the present invention, the specific alarm level determination manner may be:
Δy＝y1-y0Δx＝x1-x0ΔΦ＝Φ1-Φ0
when the side slope is a soil side slope, the value of delta x or delta y exceeds 30mm, and a third-level alarm is sent out; sending out a secondary alarm when the value of deltax or deltay exceeds 40 mm; sending a primary alarm when the value of deltax or deltay exceeds 50 mm; sending out a three-level alarm when the value of delta phi exceeds 0.8 degrees; sending out a secondary alarm when the value of delta phi exceeds 1.0 degrees; sending a first-level alarm when the value of delta phi exceeds 1.5 degrees;
when the slope is a soil slope, the Vtx or Vty value exceeds 2.0mm/d to send out a three-level alarm; the Vtx or Vty value exceeds 3mm/d to send out a secondary alarm; vtx or Vty values exceeding 4mm/d raise a primary alarm.
As an example of the present invention, the local RTU16 controls the sampling frequency of the imaging device 13 according to the above field calculation analysis result (Δ x, Δ y, Δ Φ, Vtx, or Vty) to be: the field resolving analysis result corresponding to the third-level alarm is obtained, and the sampling frequency of the camera device 13 is once observed within 30 minutes; the field resolving analysis result corresponding to the secondary alarm is obtained, and the sampling frequency of the camera device 13 is once observed within 10 minutes; the field resolving analysis result corresponding to the primary alarm is obtained, and the sampling frequency of the camera device 13 is observed once in 5 minutes;
the structural features of this embodiment are as follows:
by monitoring key elements influencing the sliding of the side slope 1, namely analyzing the position information and the image information of the side slope 1 and the flood discharge ditch 2, the risk of sliding of a part of the side slope 1 can be avoided from the source.
Meanwhile, alarm screens 16 are installed at two ends of the road 3 of the monitored side slope 1, and once the side slope 1 slipping accident happens, drivers at two ends of the road can be reminded in time not to enter a dangerous road section, so that casualties and property loss are prevented.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. A side slope safety monitoring system is characterized in that: the side slope safety monitoring system comprises a plurality of targets (11) arranged on the surface of a side slope (1), a rain gauge (12) arranged on the side slope (1), a camera device (13) arranged on the side slope (1), alarm screens (14) arranged at two ends of a road (3), a camera system (15) arranged in the side oblique direction of the side slope (1), a local RTU (16) with resolving capability and data viewing equipment (17),
the camera device (13) can shoot image information of the side slope (1) and the flood discharge ditch (2);
the camera system (15) can observe each target (11) arranged on the surface of the side slope (1) in real time, and identify the number, initial information and real-time digital information of each target (11) according to the target (11), wherein the initial information comprises the size, initial coordinates and initial rotation angles of the target (11), and the real-time digital information comprises the transverse and vertical bidirectional displacement change value, the angle change value and the displacement rate of the target (11);
the local RTU (16) is in communication connection with the camera device (13) through a network, and sets and controls the sampling frequency of the camera device (13) to acquire the image information of the slope (1) and the flood discharge ditch (2) shot by the camera device (13); the local RTU (16) is in communication connection with the camera system (15) through a network, and is used for setting and controlling parameters of the camera system (15) to acquire real-time digital information of the target (11) observed by the camera system (15); the local RTU (16) is in communication connection with the alarm screen (14) through a network, and controls the alarm screen (14) to display corresponding alarm information on the alarm screen (14);
the rainfall meter (12) is in communication connection with the local RTU (16) through a network, when raining, the rainfall meter (12) transmits rainfall value information to the local RTU (16) in real time, the local RTU (16) adjusts sampling frequencies of the camera system (15) and the camera device (13) according to the rainfall so as to encrypt and sample the target (11), the slope (1) body and the flood discharge ditch (2), and transmits sampled image information to the local RTU (16);
the local RTU (16) carries out on-site calculation analysis and event recognition on the acquired image information and the real-time digital information of the target (11), meanwhile, the local RTU (16) sends the corresponding digital information and the calculation analysis result to the cloud data viewing equipment (17) in a wireless transmission mode to be consulted and starts the alarm screen (14), the corresponding alarm information is displayed on the alarm screen (14), and the local RTU (16) controls the camera system (15) and the camera device (13) to adjust the sampling frequency according to the on-site calculation analysis result to monitor the slope (1).
2. The slope safety monitoring system of claim 1, wherein: the target (11) includes a mark code for being recognized by an imaging system (15) and an illumination device having a light-emitting function at night.
3. The slope safety monitoring system of claim 1, wherein: the targets (11) are arranged on the surface of the slope (1) in a contour line manner in a multi-row arrangement manner or in a grid-shaped staggered arrangement manner.
4. The slope safety monitoring system of claim 1, wherein: a foundation (4) is arranged at the stable position of the lateral slope of the side slope (1), and the camera system (15) is installed on the foundation (4).
5. The slope safety monitoring system of claim 1, wherein: the data viewing equipment (17) can look up corresponding digital information and a resolving analysis result uploaded to the cloud end through wireless network communication, and can remotely and interactively communicate with a local RTU (16).
6. The slope safety monitoring system of claim 5, wherein: the data viewing device (17) is an electronic device such as a computer, a tablet computer or a smart phone capable of performing human-computer interaction through wireless network communication.
7. The slope safety monitoring system of claim 1, wherein: the network communication is wired network communication or wireless network communication transmitted in a 3G, 4G, 5G or WIFI mode.
8. A side slope safety monitoring method using the side slope safety monitoring system according to any one of claims 1-7, characterized in that: the slope safety monitoring method is implemented according to the following steps in sequence:
1) arranging a plurality of targets (11) on the surface of the monitored side slope (1) in a mode of arranging contour lines in a multi-row mode or in a mode of arranging the targets in a grid-shaped staggered mode;
installing a rain gauge (12) on the monitored side slope (1);
installing a camera device (13) on the monitored side slope (1), and adjusting the camera device (13) to observe the side slope (1) and the flood discharge ditch (2);
alarm screens (14) are arranged at two ends of the road (3);
2) arranging a foundation (4) at a stable position of a lateral slope of the monitored side slope (1), installing a camera system (15) on the foundation (4), and adjusting the camera system (15) to observe all targets (11) on the side slope (1);
3) a local RTU (16) is arranged at the side of the camera system (15), and the local RTU (16) is in network communication connection with the rain gauge (12), the camera device (13), the alarm screen (14) and the camera system (15);
4) opening a switch of the local RTU (16); the method comprises the steps that initial setting is carried out on a camera system (15) through a local RTU (16), the camera system (15) is instructed to search and identify all targets (11) arranged on a slope (1), and initial information of all targets (11) is recorded; carrying out initial setting on the camera device (13) through a local RTU (16), and commanding the camera device (13) to shoot initial images of the side slope (1) and the flood discharge ditch (2);
5) a user can monitor and control the local RTU (16) on site, and can also remotely confirm the local RTU (16) through the interface of the data viewing equipment (17) in an interactive way, and input a plurality of groups of sampling frequencies and parameters of various early warning values (including a displacement early warning value, an angle early warning value, a displacement rate early warning value and an image deviation early warning value of a target (11)) and the like;
6) the monitoring is started, the local RTU (16) controls the camera system (15) to recognize real-time position information and real-time angle information of all targets (11) according to a set sampling frequency, the position information and the angle information are transmitted to the local RTU (16), the local RTU (16) compares the acquired real-time information with initial information, data are analyzed, and a displacement value and an inclination angle value of the side slope (1) slippage are calculated; the local RTU (16) controls the camera device (13) to sample the side slope (1) body and the flood discharge ditch (2) according to the set sampling frequency, and transmits the sampled real-time image information to the local RTU (16), and the local RTU (16) compares the real-time image information with the initial image information to obtain an image deviation value and uploads the real-time image information and the image deviation value to the cloud.
9. The slope safety monitoring method according to claim 8, characterized in that: in step 6), if the initial displacement coordinate of a certain target (11) is A (x)0，y0) And an initial angle value of phi0When the side slope (1) slips, the real-time displacement coordinate monitored by the camera system (15) is A1(x1，y1) And the real-time angle value is phi1The horizontal displacement rate of the target (11) is Vtx and the vertical displacement rate of the target (11) is Vty, when the real-time displacement value parameter, the angle value parameter and the displacement rate parameter exceed the early warning values, the local RTU (16) adjusts the camera system (15) to increase the information identification frequency of the target (11) so as to further strengthen the monitoring of the information of the target (11) and timely early warn the slip condition of the current slope (1), and the local RTU (16) also sends the field resolving analysis result to the two ends of the road (3) in a network communication mode by using the alarm information of corresponding levelsThe alarm screen (14) displays corresponding alarm information and image information which prompt that the slope (1) is dangerous on the alarm screen (14) and gives out acousto-optic alarm, meanwhile, the local RTU (16) also sends data information and an analysis result when early warning is given out to the cloud end in a wireless communication mode, the data viewing equipment (17) connected with the network is alarmed to prompt monitoring personnel that the slope (1) is at a sliding risk, the local RTU (16) also controls the camera device (13) to increase the sampling frequency according to the on-site resolving analysis result (the sampling frequency of the camera device can be artificially set to be increased synchronously with the sampling frequency of the camera system), the slope (1) body and the flood discharge ditch (2) are subjected to encryption sampling, the sampling image information is transmitted to the local RTU (16), the local RTU (16) compares the real-time image information with the initial image information, if the image deviation exceeds a preset image deviation value parameter, the local RTU (16) sends the real-time image information and the comparison result to the cloud end in a wireless communication mode, and prompts a data checking device (17) of a connection network to prompt monitoring personnel that potential safety hazards exist on the side slope.
10. The slope safety monitoring method according to claim 8, characterized in that: in the step 6), during rainfall, the rain gauge collects a rainfall value in real time and wirelessly transmits the rainfall value to the local RTU (16), and if the rainfall value information transmitted back by the rain gauge (12) is less than 10 mm/day, the camera device (13) transmits the real-time image information of the side slope (1) and the flood discharge ditch (2) to the local RTU (16) at the frequency of once observation for 30 minutes; if the rainfall value information returned by the rain gauge (12) is between 10 mm/day and 25 mm/day, the camera device (13) transmits the real-time image information of the side slope (1) and the flood discharge ditch (2) to a local RTU (16) at the frequency of one observation for 10 minutes; if the rainfall value information returned by the rain gauge (12) is between 25 mm/day and 50 mm/day, the camera device (13) transmits the real-time image information of the side slope (1) and the flood discharge ditch (2) to a local RTU (16) at the frequency of once observation for 5 minutes; meanwhile, the sampling frequency of the camera system (15) can be correspondingly increased according to the increase of the rainfall (the sampling frequency of the camera system (15) can be artificially set to be increased synchronously with the sampling frequency of the camera device (13)).
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