CN115294749A - Multi-plane monitoring system based on metal protection net - Google Patents
Multi-plane monitoring system based on metal protection net Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B31/00—Predictive alarm systems characterised by extrapolation or other computation using updated historic data
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
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- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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Abstract
The invention discloses a multi-site monitoring system based on a metal protective net, which relates to the technical field of protective net monitoring and solves the technical problems that the cost of an original monitoring mode is high and deformation parameters of a protective net are not known clearly in time.
Description
Technical Field
The invention belongs to the technical field of protective net monitoring, and particularly relates to a multi-site monitoring system based on a metal protective net.
Background
The metal protective net is a protective device used in the landslide of the highway and the railway, and has active protection and passive protection in a classification way, and the metal protective net is called a slope protection net.
The invention with patent publication number CN103900486B relates to a protective net monitoring system, which comprises: a hazard source signal capture system; a signal processing system; and the alarm system sends out alarm signals and/or information in one or more ways under the condition that the signal processing system determines that the deformation amount of the pressure reducing ring occurs and/or reaches a dangerous degree. The fiber bragg grating sensor is arranged on a pressure reducing ring of the protective net, the fiber bragg grating sensor or a distributed array formed by the fiber bragg grating sensor senses the deformation of the pressure reducing ring, and sensing signals are transmitted to the fiber bragg grating demodulator through signal transmission optical fibers.
The metal protection net is in practical application process, need adopt the monitoring system that the outside is connected to monitor whole metal protection net, adopt monitor probe to monitor whole monitoring area, and generate the monitoring picture and transmit to the equipment terminal that corresponds in, operating personnel is according to the monitoring picture, monitor the processing to the metal protection net, but this kind of monitoring mode, the human cost is higher, and simultaneously, because of the picture is more, can not in time discover the protection rock fall point that corresponds, also can not in time obtain the deformation parameter that corresponds the protection net, if carry out real-time processing with the picture of monitoring, cut apart into a plurality of deformation curve, the parameter of rethread to deformation curve inside is handled, whether obtain corresponding buckling point has surpassed controllable range, and show in display terminal, supply outside personnel to look over, with this monitoring effect who promotes whole protection net.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art; therefore, the invention provides a multi-site monitoring system based on a metal protective net, which is used for solving the technical problems that the cost of an original monitoring mode is higher, and deformation parameters of the protective net are not known clearly in time.
In order to achieve the above object, an embodiment according to a first aspect of the present invention provides a multi-site monitoring system based on a metal protection net, including a picture obtaining end, a monitoring control center, and a display terminal;
the monitoring control center comprises a picture preprocessing unit, a picture conversion unit, a processing unit and a threshold unit;
the image acquisition end acquires an external image of the metal protective net, a corresponding monitoring device is arranged at each monitoring node, and the monitoring device transmits a real-time image of each monitoring node to the monitoring control center;
the picture preprocessing unit is used for preprocessing the real-time picture transmitted by the picture acquisition end and segmenting the real-time picture by adopting a time interval mode to obtain a plurality of still pictures to be processed;
the image conversion unit is used for converting the received still image to be processed, converting the still image to be processed into a deformation curve and transmitting the deformation curve into the processing unit;
the processing unit is used for matching the deformation curve with a pre-established slope dam model, connecting end points at two ends of the deformation curve with end points of the slope dam model, then obtaining the longest distance between the bending point of the deformation curve and the slope dam model, and obtaining bearing parameters of corresponding points of the protective net according to the longest distance and parameter factors preset in the longest distance and the slope dam model;
the threshold unit receives the bearing parameters, compares the bearing parameters with a threshold value set in the threshold unit, generates different comparison signals according to a comparison result, and transmits the different bearing parameters and the comparison signals to the display terminal.
Preferably, the picture preprocessing unit preprocesses the transmitted picture in the following manner:
pre-receiving a real-time picture, delaying the moment of receiving the real-time picture for 10min from the initial moment, and directly intercepting the real-time picture to obtain a first group of still pictures to be processed;
taking 10min as an interval time period, and advancing the real-time pictureLine segmentation processing is carried out to obtain a plurality of groups of still pictures to be processed, and the plurality of groups of still pictures to be processed are marked as HM i Where i represents different still pictures, the captured still picture HM to be processed i And transmitting the data to the picture conversion unit.
Preferably, the image conversion unit converts the still image to be processed into the deformation curve in the following manner:
performing connection processing on the external contour of the still picture to be processed to obtain an external contour curve of the still picture to be processed;
and a corresponding two-dimensional coordinate template is arranged in the picture conversion unit, the external contour curve is bound with the two-dimensional coordinate template to obtain a corresponding deformation curve, and the obtained deformation curve is transmitted into the processing unit.
Preferably, the specific manner for the processing unit to specifically acquire the bearing parameter is as follows:
after receiving the deformation curve, the processing unit connects the end points at the two ends of the deformation curve with the end points of the slope dam model, if the connection cannot be carried out, the lower end point of the deformation curve is connected with the lower end point of the slope dam model in advance, and the upper end point of the deformation curve is connected with the slope dam model;
after the slope dam model is intervened, coordinate parameters of bending points of the deformation curve are obtained through the two-dimensional coordinate template, and the coordinate parameters of different bending points are marked as WZ ik （X ik ，Y ik ) Specifically, i represents different still pictures to be processed, k represents different bending points, and each group of still pictures to be processed corresponds to one group of deformation curves;
establishing a perpendicular line between different bending points and the inclined plane of the slope dam model, and obtaining coordinate parameters CD of different perpendicular points ik （J ik ，L ik ) Wherein different bending points correspond to different vertical points, so that k marks are adopted;
by using
Obtaining the distance parameter JL between different bending points and different vertical points ik ；
By using JL ik ×P1=CS ik Obtaining the bearing parameter CS of the bending point ik Wherein P1 is a preset parameter factor, and the specific value is drawn up by an operator according to experience.
Preferably, the threshold unit is internally provided with thresholds Y1 and Y2 to be subjected to the parameter CS ik Comparing with a threshold value when the CS is used ik When < Y1, no signal is generated, and when Y1. Ltoreq. CS ik When Y2 is less than or equal to Y2, a maintenance signal is generated, and when Y2 is less than or equal to CS ik Generating early warning signal, bearing parameter CS ik Binding with corresponding signals, and transmitting to display terminal, which will display different signals and bearing parameter CS ik And displaying.
Preferably, the early warning unit performs early warning processing according to the received early warning signal, displays an alarm picture generated by early warning through the display terminal, warns an external operator, and performs fixed-point maintenance in time.
Compared with the prior art, the invention has the beneficial effects that: the method comprises the steps of obtaining an external picture of a metal protection net in advance, dividing the picture, obtaining a plurality of static pictures to be processed according to time intervals, converting the static pictures to be processed into a deformation curve, processing the deformation curve to enable the deformation curve to be matched with a pre-established slope dam model, enabling end points at two ends of the deformation curve to be connected with end points of the slope dam model, obtaining the longest distance between a bending point of the deformation curve and the slope dam model, obtaining bearing parameters of a corresponding point of the protection net according to the longest distance and parameter factors preset inside the protection net, comparing the bearing parameters with threshold values inside a threshold value unit, generating different comparison signals according to comparison results, transmitting the comparison signals to an external display terminal, enabling external personnel to know the bearing state of the protection net in time and make corresponding measures, changing an original monitoring mode, knowing the bearing parameters of the protection net at different monitoring nodes in real time, improving timeliness in a monitoring process and avoiding the occurrence of sandstone rolling.
Drawings
Fig. 1 is a schematic diagram of the principle framework of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present application provides a multi-site monitoring system based on a metal protection net, which includes a picture obtaining end, a monitoring control center and a display terminal;
the output end of the picture acquisition end is electrically connected with the input end of a monitoring control center, the output end of the monitoring control center is respectively electrically connected with the early warning unit and the input end of a display terminal, and the output end of the early warning unit is electrically connected with the input end of the display terminal;
the monitoring control center comprises a picture preprocessing unit, a picture conversion unit, a processing unit and a threshold unit;
the output end of the picture preprocessing unit is electrically connected with the input end of the picture conversion unit, the output end of the picture conversion unit is electrically connected with the input end of the processing unit, and the processing unit is bidirectionally connected with the threshold unit;
the image acquisition end acquires an external image of the metal protection net, a corresponding monitoring device is arranged at each monitoring node, and the monitoring device transmits the real-time image of each monitoring node to the monitoring control center;
the inside picture preprocessing unit in monitoring management and control center carries out the preliminary treatment to the real-time picture that the picture acquisition end transmitted, adopts the mode of interval time quantum, cuts apart the real-time picture, obtains a plurality of still picture of treating, and wherein the mode of specifically cutting apart is:
pre-receiving a real-time picture, delaying the moment of receiving the real-time picture for 10min from the initial moment, and directly intercepting the real-time picture to obtain a first group of still pictures to be processed;
dividing the real-time picture at an interval of 10min to obtain multiple groups of still pictures to be processed, and marking the groups of still pictures to be processed as HM i Where i represents different still pictures, the captured still picture HM to be processed i And transmitting the data to a picture conversion unit.
The picture conversion unit converts the received still picture HM to be processed i Carrying out conversion processing, converting the still picture to be processed into a deformation curve, and then transmitting the deformation curve into a processing unit:
performing connection processing on the external contour of the still picture to be processed to obtain an external contour curve of the still picture to be processed;
and a corresponding two-dimensional coordinate template is arranged in the picture conversion unit, the external contour curve and the two-dimensional coordinate template are bound to obtain a corresponding deformation curve (the deformation curve is an integral curve chart combining the external contour curve and the two-dimensional coordinate template), and the obtained deformation curve is transmitted into the processing unit.
The processing unit matches the deformation curve with the slope dam model established in advance, makes the both ends endpoint of deformation curve be connected with the endpoint of slope dam model, reacquires the longest distance between deformation curve buckling point and the slope dam model, according to the parameter factor of longest distance and inside presetting, obtains the parameter of bearing of protection network corresponding point, and wherein the mode that specifically acquires the bearing parameter is:
after the processing unit receives the deformation curve, connecting end points at two ends of the deformation curve with end points of the slope dam model, if the connection cannot be carried out, connecting a lower end point of the deformation curve with a lower end point of the slope dam model in advance, and connecting an upper end point of the deformation curve with the slope dam model (the connection cannot be carried out, namely, a protective net is influenced by pressure of falling rocks, a protective buckle at the upper end drops, so that the upper end point of the obtained deformation curve cannot be connected with the slope dam model, wherein the slope dam model is input in advance by external personnel and is established according to an actual scene);
after the slope dam model is intervened, the two-dimensional seat is adoptedThe standard template acquires the coordinate parameters of the bending points of the deformation curve, and marks the coordinate parameters of different bending points as WZ ik （X ik ，Y ik ) Specifically, i represents different still pictures to be processed, k represents different bending points, and each group of still pictures to be processed corresponds to one group of deformation curves;
establishing vertical lines between different bending points and inclined planes of the slope dam model, and obtaining coordinate parameters CD of different vertical points ik （J ik ，L ik ) Wherein different bending points correspond to different vertical points, so that k marks are adopted;
by using
Obtaining the distance parameter JL between different bending points and different vertical points ik ；
By using JL ik ×P1=CS ik Obtaining the bearing parameter CS of the bending point ik Wherein P1 is a preset parameter factor, the specific value is drawn up by an operator according to experience, and the borne parameter CS ik And transmitting the data to a threshold unit for comparison, wherein the specific comparison mode is as follows:
threshold values Y1 and Y2 are arranged in the threshold value unit and bear the parameter CS ik Comparing with a threshold value when the CS is used ik When < Y1, no signal is generated, and when Y1. Ltoreq. CS ik When Y2 is less than or equal to Y2, a maintenance signal is generated, and when Y2 is less than or equal to CS ik Generating early warning signal to bear parameter CS ik Binding with corresponding signal, and transmitting to display terminal, which will display different signal and bearing parameter CS ik And displaying.
The early warning unit carries out early warning processing according to the received early warning signal, displays an alarm picture generated by early warning through the display terminal, warns external operators and carries out fixed-point maintenance in time.
Part of data in the formula is obtained by removing dimension and taking the value to calculate, and the formula is obtained by simulating a large amount of collected data through software and is closest to a real situation; the preset parameters and the preset threshold values in the formula are set by those skilled in the art according to actual conditions or obtained through simulation of a large amount of data.
The working principle of the invention is as follows: the method comprises the steps of obtaining an external picture of a metal protection net in advance, dividing the picture, obtaining a plurality of static pictures to be processed according to time intervals, converting the static pictures to be processed into a deformation curve, processing the deformation curve to enable the deformation curve to be matched with a pre-established slope dam model, enabling end points at two ends of the deformation curve to be connected with end points of the slope dam model, obtaining the longest distance between a bending point of the deformation curve and the slope dam model, obtaining bearing parameters of a corresponding point of the protection net according to the longest distance and parameter factors preset inside the protection net, comparing the bearing parameters with threshold values inside a threshold value unit, generating different comparison signals according to comparison results, transmitting the comparison signals to an external display terminal, enabling external personnel to know the bearing state of the protection net in time and make corresponding measures, changing an original monitoring mode, knowing the bearing parameters of the protection net at different monitoring nodes in real time, improving timeliness in a monitoring process and avoiding the occurrence of sandstone rolling.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (6)
1. The multi-site monitoring system based on the metal protective net is characterized by comprising a picture acquisition end, a monitoring control center and a display terminal;
the monitoring control center comprises a picture preprocessing unit, a picture conversion unit, a processing unit and a threshold unit;
the image acquisition end acquires an external image of the metal protection net, a corresponding monitoring device is arranged at each monitoring node, and the monitoring device transmits the real-time image of each monitoring node to the monitoring control center;
the picture preprocessing unit is used for preprocessing the real-time picture transmitted by the picture acquisition end and dividing the real-time picture in a time interval mode to obtain a plurality of still pictures to be processed;
the image conversion unit is used for converting the received still image to be processed, converting the still image to be processed into a deformation curve and transmitting the deformation curve into the processing unit;
the processing unit is used for matching the deformation curve with a pre-established slope dam model, enabling end points at two ends of the deformation curve to be connected with end points of the slope dam model, then obtaining the longest distance between a bending point of the deformation curve and the slope dam model, and obtaining bearing parameters of corresponding points of the protective net according to the longest distance and parameter factors preset inside;
the threshold unit receives the bearing parameters, compares the bearing parameters with a threshold value set in the threshold unit, generates different comparison signals according to a comparison result, and transmits the different bearing parameters and the comparison signals to the display terminal.
2. The multi-site monitoring system based on a metal protection net according to claim 1, wherein the picture preprocessing unit preprocesses the transmitted pictures by:
pre-receiving a real-time picture, delaying the moment of receiving the real-time picture for 10min from the initial moment, and directly intercepting the real-time picture to obtain a first group of still pictures to be processed;
taking 10min as an interval time period, segmenting the real-time picture to obtain a plurality of groups of still pictures to be processed, and marking the plurality of groups of still pictures to be processed as HM i Where i represents different still pictures, the still picture HM to be processed being captured i And transmitting the data to a picture conversion unit.
3. The multi-site monitoring system based on a metal protection net according to claim 2, wherein the image conversion unit converts the still image to be processed into a deformation curve in a manner that:
performing connection processing on the external contour of the still picture to be processed to obtain an external contour curve of the still picture to be processed;
and a corresponding two-dimensional coordinate template is arranged in the picture conversion unit, the external contour curve is bound with the two-dimensional coordinate template to obtain a corresponding deformation curve, and the obtained deformation curve is transmitted into the processing unit.
4. A multi-site monitoring system based on a metal protection net according to claim 3, characterized in that the specific manner of acquiring the bearing parameters by the processing unit is as follows:
after receiving the deformation curve, the processing unit connects the end points at the two ends of the deformation curve with the end points of the slope dam model, if the connection cannot be carried out, the lower end point of the deformation curve is connected with the lower end point of the slope dam model in advance, and the upper end point of the deformation curve is connected with the slope dam model;
after the slope dam model is intervened, coordinate parameters of bending points of the deformation curve are obtained through the two-dimensional coordinate template, and the coordinate parameters of different bending points are marked as WZ ik （X ik ，Y ik ) Specifically, i represents different still pictures to be processed, k represents different bending points, and each group of still pictures to be processed corresponds to one group of deformation curves;
establishing a perpendicular line between different bending points and the inclined plane of the slope dam model, and obtaining coordinate parameters CD of different perpendicular points ik （J ik ，L ik ) Wherein different bending points correspond to different vertical points, so that k marks are adopted;
by using
Obtaining the distance parameter JL between different bending points and different vertical points ik ；
Adopt JL ik ×P1=CS ik Obtaining the bearing parameter CS of the bending point ik Wherein P1 is a preset parameter factor, and the specific value is selected by an operatorAnd drawing up according to experience.
5. A multi-site monitoring system based on a metal protection net according to claim 4, characterized in that threshold values Y1 and Y2 are arranged inside the threshold value unit and will bear a parameter CS ik Comparing with a threshold value when the CS ik When < Y1, no signal is generated, and when Y1. Ltoreq. CS ik When Y2 is less than or equal to Y2, a maintenance signal is generated, and when Y2 is less than or equal to CS ik Generating early warning signal to bear parameter CS ik Binding with corresponding signals, and transmitting to display terminal, which will display different signals and bearing parameter CS ik And displaying.
6. The multi-site monitoring system based on a metal protection net according to claim 5, wherein the early warning unit performs early warning processing according to the received early warning signal, displays an alarm picture generated by early warning through a display terminal, warns an external operator, and performs fixed-point maintenance in time.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985225A (en) * | 2013-02-08 | 2014-08-13 | 同方威视技术股份有限公司 | Intelligent monitoring system for flexible passive protective net |
| CN110390800A (en) * | 2019-06-06 | 2019-10-29 | 北京市地质研究所 | Net formula disaster monitoring and early-warning system |
| CN111243240A (en) * | 2020-01-20 | 2020-06-05 | 内蒙古工业大学 | Landslide early warning method and device |
| CN112458938A (en) * | 2020-12-04 | 2021-03-09 | 南京宥安传感科技有限公司 | Novel rockfall protection network monitoring system |
| CN114267155A (en) * | 2021-11-05 | 2022-04-01 | 国能大渡河革什扎水电开发有限公司 | Geological disaster monitoring and early warning system based on video recognition technology |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985225A (en) * | 2013-02-08 | 2014-08-13 | 同方威视技术股份有限公司 | Intelligent monitoring system for flexible passive protective net |
| CN110390800A (en) * | 2019-06-06 | 2019-10-29 | 北京市地质研究所 | Net formula disaster monitoring and early-warning system |
| CN111243240A (en) * | 2020-01-20 | 2020-06-05 | 内蒙古工业大学 | Landslide early warning method and device |
| CN112458938A (en) * | 2020-12-04 | 2021-03-09 | 南京宥安传感科技有限公司 | Novel rockfall protection network monitoring system |
| CN114267155A (en) * | 2021-11-05 | 2022-04-01 | 国能大渡河革什扎水电开发有限公司 | Geological disaster monitoring and early warning system based on video recognition technology |
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