CN117112091A - Digital twinning-based water condition and dam safety monitoring system and model decoupling method - Google Patents
Digital twinning-based water condition and dam safety monitoring system and model decoupling method Download PDFInfo
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Abstract
The application relates to the technical field of digital twinning, and discloses a digital twinning-based water condition and dam safety monitoring system and a model decoupling method for improving the visibility of water level information. The method comprises the following steps: tracking the amplification proportion and the sight direction of a user on the digital twin interface based on mouse and/or keyboard operation; judging whether the current amplification ratio exceeds a set threshold value or not; if the water level information is more than the water level information, judging whether any model with the current sight line direction in the interface middle setting area is associated with a virtual water gauge, if so, acquiring the water level information corresponding to the current real water gauge, and shifting the virtual water gauge carrying the water level information to the middle position of the side wall displayed in the front view of the associated model; and then returning to the previous step to dynamically adjust the displacement of the virtual water gauge according to the enlargement ratio, the sight direction and/or the updating of the water level information.
Description
Technical Field
The application relates to the technical field of digital twinning, in particular to a digital twinning-based water condition and dam safety monitoring system and a model decoupling method.
Background
Safety monitoring is an important management object for hydraulic engineering operation.
The traditional hydraulic engineering safety operation monitoring system comprises data acquisition, data transmission and data analysis. How to visualize the presentation of relevant monitored data to facilitate decision making and management is a challenge.
Digital twinning is widely applied to various industries such as aviation, intelligent manufacturing and the like. The digital twin technology is also applied to data monitoring and remote control of the rain conditions of reservoirs and dams, and the like, and the digital twin technology is also correspondingly researched.
The existing digital twin is usually constructed based on an actual object, and if necessary, the related small models can be integrally packaged after being fixed in position, so that the relative relation between the small models is kept unchanged in the process of switching along with the sight of a user. Therefore, the defect of higher operation precision requirement on the user is brought, and on one hand, the operation time for acquiring the key data is longer; on the other hand, it is also easy to cause part of critical monitoring data to be directly ignored; thus, further improvements are needed.
Disclosure of Invention
The application aims to disclose a digital twinning-based water regime and dam safety monitoring system and a model decoupling method so as to improve the visibility of water level information.
In order to achieve the above purpose, the model decoupling method based on the digital twin water condition and dam safety monitoring system disclosed by the application comprises the following steps:
s1, tracking the amplification proportion and the sight line direction of a user on a digital twin interface based on mouse and/or keyboard operation; the sight line direction takes the center of the digital twin interface as an origin, and rotates up and down and/or left and right in the dragging direction of a mouse and/or a keyboard;
s2, judging whether the current amplification ratio exceeds a set threshold value; if yes, turning to step S3, otherwise ending the flow;
step S3, judging whether any model with the current sight line direction in the interface middle setting area is associated with a virtual water gauge, if yes, turning to step S4, otherwise, ending the flow; the virtual water gauge corresponds to a physical water gauge vertically fixed on the physical side wall corresponding to the correlation model;
s4, acquiring water level information corresponding to the current real water gauge, and shifting a virtual water gauge carrying the water level information to the middle position of the side wall displayed in the current front view of the correlation model; and then returning to the step S1 to dynamically adjust the displacement of the virtual water gauge according to the enlargement ratio, the sight direction and/or the updating of the water level information.
Preferably, the correlation model is a virtual model of an irrigation generation hole, and the method further comprises:
s5, marking the real position of the corresponding real object water gauge in the side wall of the association model, and recording the attribute information of the real position and the binding relation between the attribute information and the shooting parameters calibrated in advance by the first camera;
step S6, judging whether the first camera is in an idle state or acquiring a water surface video state comprising a real water gauge currently in the process of displacing the virtual water gauge, if so, turning to step S7, otherwise turning to step S8;
step S7, judging whether the sunlight condition in the current period meets the definition requirement of the video collected by the first camera, if so, instructing the first camera to collect the water surface video comprising the real water gauge based on the pre-calibrated shooting parameters, and embedding the real-time water surface video playing window on the water surface area in the digital twin interface; otherwise, ending the flow;
s8, calling other cameras in an idle state to acquire the water surface video state of the dam bank, judging whether the sunlight condition in the current period meets the definition requirement of the corresponding camera for acquiring the video, and if so, embedding a real-time water surface video playing window on a water bank area in a digital twin interface; otherwise, the flow is ended.
Further, the method of the application further comprises:
step S9, identifying a character 'E' from the image frame of the water surface video,And numbers;
step S10, according to "E"And determining the position of the water gauge according to the arrangement rule of the numbers;
s11, extracting the boundary line between the water gauge and the water surface area after carrying out gray processing on the image frame;
step S12, according to the water gauge 'E' andcalculating maximum and minimum values of intersection points of boundary lines in continuous image frames and central vertical lines of the water gauge by using an interpolation algorithm, calculating a grade index of the current wave by using the maximum value as a wave crest, the minimum value as a wave trough and a time span between the maximum value and the minimum value as a half-wave period, and determining the average value of the wave crest and the wave trough as the current water level.
Preferably, the method of the present application further comprises: at least one electronic water gauge capable of automatically measuring water level according to the interval period and remotely transmitting water level data is deployed; when the sunlight condition meets the definition requirement of the first camera for collecting the video, error checking is carried out on the water level determined in the step S12 and the data between the electronic water gauges to judge whether the corresponding object is faulty or damaged, and when the sunlight condition does not meet the definition requirement of the first camera for collecting the video, the average value of the water levels measured by the electronic water gauges working normally is determined as the current water level.
The application also discloses a digital twinning-based water condition and dam safety monitoring system, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor is used for realizing a series of steps corresponding to the method when executing the computer program.
The application has the following beneficial effects:
in the traditional mode that a water gauge in an actual environment is fixed on an irrigation power generation hole or a water gauge pile, only a specific observation angle is convenient for reading water level information, the virtual water gauge and an associated model are decoupled, so that the water gauge can be dynamically adjusted according to the changes of the sight, the amplification proportion and the like of a user; the essence is that the acquisition intention of the user to the key information of the water gauge water level is determined according to the amplification proportion determined by the user, and then the displacement of the virtual water gauge is adjusted according to the corresponding sight line information so as to be actively presented in the current reasonable and convenient sight line range of the user. Therefore, the water level information is flexibly, intelligently and reliably displayed, the visibility and the real-time observation performance are improved, and the defect that the water level information is easily ignored is effectively avoided.
The application will be described in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
fig. 1 is a schematic flow diagram of a model decoupling method of a digital twinning-based water condition and dam safety monitoring system according to an embodiment of the application.
Detailed Description
Embodiments of the application are described in detail below with reference to the attached drawings, but the application can be implemented in a number of different ways, which are defined and covered by the claims.
Example 1
The embodiment discloses a model decoupling method based on digital twin water conditions and a dam safety monitoring system, as shown in fig. 1, comprising the following steps:
s1, tracking the amplification proportion and the sight line direction of a user on a digital twin interface based on mouse and/or keyboard operation; the sight line direction takes the center of the digital twin interface as an origin, and rotates up and down and/or left and right in the dragging direction of the mouse and/or the keyboard.
In this step, the control mode of the sight line direction is consistent with the mode of viewing a room by the existing VR (Virtual Reality), so that the user can accurately control based on the existing VR operation habit, and the usability in the implementation process of this embodiment is improved.
S2, judging whether the current amplification ratio exceeds a set threshold value; if yes, go to step S3, otherwise, end the flow.
In this step, the essence is that the larger the magnification ratio corresponding to the usual manipulation habit of the user is, the higher the interest probability of the detail is, and the following is: when the amplification ratio exceeds a set threshold, the probability of attention of the user to the current water level information of the water gauge is larger so as to further support corresponding processing of the following steps.
Step S3, judging whether any model with the current sight line direction in the interface middle setting area is associated with a virtual water gauge, if yes, turning to step S4, otherwise, ending the flow; the virtual water gauge corresponds to a physical water gauge vertically fixed on the physical side wall corresponding to the association model.
In this step, the water gauge of the object is typically fixed to the side wall of the irrigation hole or stake. The setting area in the middle of the interface can refer to the display position of 100% of the equal proportion corresponding to the Word and other print preview interfaces in the screen, and can be set and changed by the user according to personal preference.
S4, acquiring water level information corresponding to the current real water gauge, and shifting a virtual water gauge carrying the water level information to the middle position of the side wall displayed in the current front view of the correlation model; and then returning to the step S1 to dynamically adjust the displacement of the virtual water gauge according to the enlargement ratio, the sight direction and/or the updating of the water level information.
In this step, assuming that the correlation model is an irrigation hole, the sidewall is generally barrel-shaped, and the corresponding displacement mode is rotation around the central axis; in order to facilitate the recognition and the operation processing in the association process, the corresponding contour lines and areas of the side wall need to be calibrated in advance. The correlation model is usually in a regular shape, and optional displacement modes include, but are not limited to, translation, etc., and a developer can set in advance a displacement adjustment mode corresponding to each correlation model in a program. Preferably, the displacement adjustment mode is firstly based on a default proportion (usually 1:1 proportion of the original image of the constructed model) for adjusting the line of sight, and then corresponding operation is carried out on the distribution of the pixel points corresponding to the virtual water gauge according to the current amplification proportion.
Further, when the correlation model of the present embodiment is a virtual model of an irrigation hole, the method further includes:
and S5, marking the real position of the corresponding real object water gauge in the side wall of the association model, and recording the attribute information of the real position and the binding relation between the attribute information and the shooting parameters calibrated in advance by the first camera.
In this step, the relevant imaging parameters include displacement information, focal length information, and the like of the camera corresponding to the angle of view.
And step S6, judging whether the first camera is in an idle state or collecting a water surface video state comprising the real water gauge currently in the process of displacing the virtual water gauge, if so, turning to step S7, otherwise turning to step S8.
Step S7, judging whether the sunlight condition in the current period meets the definition requirement of the video collected by the first camera, if so, instructing the first camera to collect the water surface video comprising the real water gauge based on the pre-calibrated shooting parameters, and embedding the real-time water surface video playing window on the water surface area in the digital twin interface; otherwise, the flow is ended.
S8, calling other cameras in an idle state to acquire the water surface video state of the dam bank, judging whether the sunlight condition in the current period meets the definition requirement of the corresponding camera for acquiring the video, and if so, embedding a real-time water surface video playing window on a water bank area in a digital twin interface; otherwise, the flow is ended.
In this step, compared with switching the operation state of the first camera by priority, the resource conflict of the first camera is solved and the complexity of the system is simplified.
Based on the steps S5 to S8, the embedded water surface video can be used for users to intuitively observe real-time water surface information, virtual model information and actual water surface information are integrated, and compared with the method that the dynamic information of the virtual model information is mapped to the whole water surface area of a digital twin interface according to the actual water surface information, the method has the advantages that the system calculation amount is greatly simplified, the system resources are saved, and a more real technical effect can be achieved. The constraint conditions of the region corresponding to the above-water video playing window can be preset by a program based on conventional designs known to those skilled in the art.
Further, the method of the embodiment further comprises the following steps:
step S9, identifying a character 'E' from the image frame of the water surface video,And numbers.
Step S10, according to "E"And determining the position of the water gauge according to the arrangement rule of the numbers.
And S11, extracting the boundary line between the water gauge and the water surface area after performing gray processing on the image frame.
Step S12, according to the water gauge 'E' andcalculating maximum and minimum values of intersection points of boundary lines in continuous image frames and central vertical lines of the water gauge by using an interpolation algorithm, calculating a grade index of the current wave by using the maximum value as a wave crest, the minimum value as a wave trough and a time span between the maximum value and the minimum value as a half-wave period, and determining the average value of the wave crest and the wave trough as the current water level.
Therefore, based on the steps S9 to S12, the real and reliable water level information can be automatically processed and obtained based on machine vision, the intelligence of the system is improved, and compared with a visual inspection mode, the water level information is more accurate.
Further, the method of the embodiment further comprises the following steps: at least one electronic water gauge capable of automatically measuring water level according to the interval period and remotely transmitting water level data is deployed; when the sunlight condition meets the definition requirement of the first camera for collecting the video, error checking is carried out on the water level determined in the step S12 and the data between the electronic water gauges to judge whether the corresponding object is faulty or damaged, and when the sunlight condition does not meet the definition requirement of the first camera for collecting the video, the average value of the water levels measured by the electronic water gauges working normally is determined as the current water level.
Generally, the user can determine whether the related processes from step S9 to step S12 are accurate based on the visual data obtained by the video collected by the first camera, and then check whether the other electronic water gauge data are accurate.
Noteworthy are: in this embodiment, the execution body of each step is typically each client connected to the platform server, and each client may acquire corresponding data from the platform server based on corresponding user operation, and then perform analysis and display processing on the layer and the data; therefore, a plurality of clients can independently interact with the platform server in parallel, and the system expansion is facilitated.
Further, in this embodiment, model information corresponding to a water level gauge, a rain gauge, an observation pier, a flood discharge gate, an osmometer, a water weir, a pressure measuring pipe, and a GNSS (Global Navigation Satellite System ) surface displacement monitoring device may be embedded in the digital twin interface. Such treatments are well known to those skilled in the art and will not be described in detail.
Example 2
Corresponding to the above embodiment, the present embodiment discloses a digital twin-based water condition and dam safety monitoring system, which includes a memory, a processor, and a computer program stored on the memory and capable of running on the processor, wherein the processor is used for implementing a series of steps corresponding to the above method embodiment when executing the computer program.
In summary, the digital twinning-based water condition and dam safety monitoring system and model decoupling method disclosed by the embodiment of the application have at least the following beneficial effects:
in the traditional mode that a water gauge in an actual environment is fixed on an irrigation power generation hole or a water gauge pile, only a specific observation angle is convenient for reading water level information, the virtual water gauge and an associated model are decoupled, so that the water gauge can be dynamically adjusted according to the changes of the sight, the amplification proportion and the like of a user; the essence is that the acquisition intention of the user to the key information of the water gauge water level is determined according to the amplification proportion determined by the user, and then the displacement of the virtual water gauge is adjusted according to the corresponding sight line information so as to be actively presented in the current reasonable and convenient sight line range of the user. Therefore, the water level information is flexibly, intelligently and reliably displayed, the visibility and the real-time observation performance are improved, and the defect that the water level information is easily ignored is effectively avoided.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (6)
1. A model decoupling method based on a digital twin water condition and dam safety monitoring system, comprising the following steps:
s1, tracking the amplification proportion and the sight line direction of a user on a digital twin interface based on mouse and/or keyboard operation; the sight line direction takes the center of the digital twin interface as an origin, and rotates up and down and/or left and right in the dragging direction of a mouse and/or a keyboard;
s2, judging whether the current amplification ratio exceeds a set threshold value; if yes, turning to step S3, otherwise ending the flow;
step S3, judging whether any model with the current sight line direction in the interface middle setting area is associated with a virtual water gauge, if yes, turning to step S4, otherwise, ending the flow; the virtual water gauge corresponds to a physical water gauge vertically fixed on the physical side wall corresponding to the correlation model;
s4, acquiring water level information corresponding to the current real water gauge, and shifting a virtual water gauge carrying the water level information to the middle position of the side wall displayed in the current front view of the correlation model; and then returning to the step S1 to dynamically adjust the displacement of the virtual water gauge according to the enlargement ratio, the sight direction and/or the updating of the water level information.
2. The method of claim 1, wherein the associated model is a virtual model of an irrigation generation hole, the method further comprising:
s5, marking the real position of the corresponding real object water gauge in the side wall of the association model, and recording the attribute information of the real position and the binding relation between the attribute information and the shooting parameters calibrated in advance by the first camera;
step S6, judging whether the first camera is in an idle state or acquiring a water surface video state comprising a real water gauge currently in the process of displacing the virtual water gauge, if so, turning to step S7, otherwise turning to step S8;
step S7, judging whether the sunlight condition in the current period meets the definition requirement of the video collected by the first camera, if so, instructing the first camera to collect the water surface video comprising the real water gauge based on the pre-calibrated shooting parameters, and embedding the real-time water surface video playing window on the water surface area in the digital twin interface; otherwise, ending the flow;
s8, calling other cameras in an idle state to acquire the water surface video state of the dam bank, judging whether the sunlight condition in the current period meets the definition requirement of the corresponding camera for acquiring the video, and if so, embedding a real-time water surface video playing window on a water bank area in a digital twin interface; otherwise, the flow is ended.
3. The method as recited in claim 2, further comprising:
step S9, identifying a character 'E' from the image frame of the water surface video,And numbers;
step S10, according to "E"And determining the position of the water gauge according to the arrangement rule of the numbers;
s11, extracting the boundary line between the water gauge and the water surface area after carrying out gray processing on the image frame;
step S12, according to the water gauge 'E' andcalculating maximum and minimum values of intersection points of boundary lines in continuous image frames and central vertical lines of the water gauge by using an interpolation algorithm, calculating a grade index of the current wave by using the maximum value as a wave crest, the minimum value as a wave trough and a time span between the maximum value and the minimum value as a half-wave period, and determining the average value of the wave crest and the wave trough as the current water level.
4. A method according to claim 3, further comprising:
at least one electronic water gauge capable of automatically measuring water level according to the interval period and remotely transmitting water level data is deployed;
when the sunlight condition meets the definition requirement of the first camera for collecting the video, error checking is carried out on the water level determined in the step S12 and the data between the electronic water gauges to judge whether the corresponding object is faulty or damaged, and when the sunlight condition does not meet the definition requirement of the first camera for collecting the video, the average value of the water levels measured by the electronic water gauges working normally is determined as the current water level.
5. The method according to any one of claims 1 to 4, further comprising:
and model information respectively corresponding to the water level gauge, the rain gauge, the observation pier, the flood discharge gate, the osmometer, the water weir, the pressure measuring pipe and the GNSS ground surface displacement monitoring equipment is embedded in the digital twin interface.
6. A digital twin based water condition and dam safety monitoring system comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor is adapted to implement the method of any of the preceding claims 1 to 5 when executing the computer program.
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