CN115861272A - Water displacement detection method based on video data and electronic device - Google Patents
Water displacement detection method based on video data and electronic device Download PDFInfo
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- CN115861272A CN115861272A CN202211668839.3A CN202211668839A CN115861272A CN 115861272 A CN115861272 A CN 115861272A CN 202211668839 A CN202211668839 A CN 202211668839A CN 115861272 A CN115861272 A CN 115861272A
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Abstract
The invention discloses a drainage detection method based on video data, which comprises the following steps: installing a camera right in front of the drainage equipment, horizontally installing and fixing a water outlet, calibrating the length of a gravity hammer, pulling a video stream from the camera, calibrating the specific position of the gravity hammer according to picture content, and marking the length of the gravity hammer according to field measurement; decoding a video frame, converting an image into an RGB format and zooming to a model input size; performing image segmentation, wherein the image segmentation comprises the background, a drain pipe, a discharge area and water flow; if the drain pipe, the discharge area and the water flow are not detected, reporting that the field equipment is abnormal; if the water flow length is larger than a certain value, the water flow of the coil water pipe is considered to be full, and the instantaneous water discharge is as follows: the internal cross-sectional area of the water pipe and the external horizontal water flow speed; the method and the electronic device for detecting the water displacement based on the video data have the advantages of being accurate in monitoring, improving convenience and safety of construction and the like.
Description
Technical Field
The invention relates to the field of video analysis, in particular to a water displacement detection method based on video data and an electronic device.
Background
At present, many scenes need to know the current water discharge amount in real time, such as a dam water outlet, a household garbage and industrial garbage disposal medicine discharge port and the like; the construction of the water conservancy visual monitoring system is an inevitable trend for realizing sustainable development of modern water conservancy, and can enable important fields of flood control and disaster reduction, water resource scheduling management, water pollution event processing, shipping management and the like of a water conservancy management department to obtain data and information more timely and objectively, give early warning more accurately and efficiently and the like, and make scientific decisions of sustainable development better. The visual detection system can also improve the working environment of the operation maintenance staff of the hydraulic engineering, improve the working efficiency and save the operation cost of the hydraulic engineering.
Some scene conditions are abominable, and construction, maintenance are all more difficult, and some still have very strong corrosivity, are difficult to be under construction or maintain with traditional flowmeter, if go the analysis based on the video, can improve convenience, the security of construction to on-the-spot video data in addition makes things convenient for the secondary to obtain evidence.
Disclosure of Invention
The invention provides a water displacement detection method based on video data and an electronic device, and solves the problem that the water velocity of a water drainage pipe cannot be accurately monitored in the related art.
According to the embodiment of the application, the method for detecting the water displacement based on the video data comprises the following steps:
installing a camera right in front of the drainage equipment, horizontally installing and fixing a water outlet, calibrating the length of a gravity hammer, pulling a video stream from the camera, calibrating the specific position of the gravity hammer according to picture content, and marking the length of the gravity hammer according to field measurement;
decoding a video frame, converting an image into an RGB format and zooming to a model input size;
performing image segmentation, wherein the image segmentation comprises the background, a drain pipe, a discharge area and water flow;
if the drain pipe, the discharge area and the water flow are not detected, reporting that the field equipment is abnormal;
if the water flow length is larger than a certain value, the water flow of the coil water pipe is considered to be full, and the instantaneous water discharge is as follows: internal cross-sectional area of the water pipe and external horizontal water flow velocity;
if the water flow length is less than the specified value, then it is judged that the water is discharged from the water discharge pipe and is not full of the whole water pipe, and the water discharge at this time is: area from the bottom of the water pipe to the water surface and water velocity in the horizontal direction outside.
Preferably, based on the water displacement, a period of time is taken for calculation, the data of the minimum water displacement and the data of the maximum water displacement are removed, and the sum of other water displacements is averaged to obtain the statistical average water displacement in the period of time.
Preferably, the image segmentation uses a Deeplab V3+ image segmentation algorithm, a gravity weight is used to calibrate the absolute vertical direction, and the ratio of the unit distance to the actual distance in the frame is calibrated.
In order to solve the above technical problem, the present invention provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the method for detecting water displacement based on video data according to any one of the preceding claims.
In order to solve the above technical problem, the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method for detecting a water discharge amount based on video data as described in any one of the above.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
the method comprises the steps of monitoring and analyzing video data of a drain pipe, and carrying out image segmentation on a video, wherein the types of the video are respectively background, the drain pipe, a drain area and water flow; if the drain pipe, the discharge area and the water flow are not detected, reporting that the field equipment is abnormal; if the water flow length is larger than a certain value, the water flow of the coil water pipe is considered to be full, and the instantaneous water discharge is as follows: internal cross-sectional area of the water pipe and external horizontal water flow velocity; if the water flow length is less than the specified value, then it is judged that the water is discharged from the water discharge pipe and is not full of the whole water pipe, and the water discharge at this time is: area from the bottom of the water pipe to the water surface and water velocity in the horizontal direction outside. The problem of exist among the prior art can't carry out accurate control to the displacement of drain pipe is solved, accurate control improves convenience, the security of construction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic diagram of the logic of the present invention;
fig. 3 is a construction schematic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, the present invention provides a method 100 for detecting a drainage amount based on video data, comprising the following steps:
s1, installing a camera right in front of drainage equipment, horizontally installing and fixing a drainage port, calibrating the length of a gravity hammer, pulling a video stream from the camera, calibrating the specific position of the gravity hammer according to picture content, and marking the length of the gravity hammer according to field measurement;
s2, decoding a video frame, converting an image into an RGB format and zooming to a model input size;
s3, carrying out image segmentation, wherein the image segmentation comprises a background, a drain pipe, a discharge area and water flow;
s4, if the drain pipe, the discharge area and the water flow are not detected, reporting that the field equipment is abnormal;
and S5, if the water flow length is greater than a certain specific value, the water flow of the coil water pipe is considered to be full, and the instantaneous water discharge is as follows: internal cross-sectional area of the water pipe and external horizontal water flow velocity;
and S6, if the water flow length is less than a specific value, judging that the water is discharged from the water discharge pipe and the whole water pipe is not filled, wherein the water discharge amount at the moment is as follows: the area from the bottom of the inside of the water pipe to the water surface part and the water flow speed of the outside in the horizontal direction;
step S7: and based on the water displacement, calculating a period of time, removing the data with the minimum water displacement and the data with the maximum water displacement, and averaging the sum of other water displacements to obtain the statistical average water displacement in the period of time.
Wherein in the step S5, if the water flow length is greater than a certain value, the water flow of the coil water pipe is considered to be full, and the instantaneous water discharge is: according to the physical principle, under the condition of knowing the gravity acceleration g, the height h and the length l, the water flow speed in the external horizontal direction can be easily obtained, and the air resistance is ignored;
the purpose of removing the data of the minimum and maximum displacement is to exclude the influence of wind or other factors.
It is understood that in the present invention, the image segmentation uses the deplab v3+ image segmentation algorithm, the gravity weight is used to calibrate the absolute vertical direction, and to calibrate the ratio of the unit distance to the actual distance in the frame.
The area of the portion from the bottom of the interior of the water pipe to the water surface is calculated according to h2 in fig. 2.
Referring to fig. 3, fig. 3 is a schematic diagram of the construction of the present invention, and a deplabv 3+ image segmentation algorithm is used for the target detection of the present invention, and is divided into four categories, i.e., a background, a drainage pipe, a drainage outlet, and a water flow. Fig. 3 shows a schematic diagram of construction, in which a gravity hammer is used to calibrate an absolute vertical direction, and a ratio of a unit distance to an actual distance in a calibration picture (for example, a line of the gravity hammer is 1 meter long, and in a 1080P picture of a specific lens, there may be only a height of 50 pixels), and a determination logic is as follows: performing detection every N frames, and counting the average value of the detection times M (two data with large errors are removed) per minute to be used as the average flow rate of the minute;
the invention provides an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the method 100 for detecting a water displacement based on video data.
The present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method 100 for detecting a water discharge based on video data.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
the method comprises the steps of monitoring and analyzing video data of a drain pipe, and carrying out image segmentation on the video, wherein the types of the video are respectively a background, the drain pipe, a drain area and water flow; if the drain pipe, the discharge port area and the water flow are not detected, the abnormality of the field equipment is reported; if the water flow length is larger than a certain value, the water flow of the coil water pipe is considered to be full, and the instantaneous water discharge is as follows: internal cross-sectional area of the water pipe and external horizontal water flow velocity; if the water flow length is less than the specified value, then it is judged that the water is discharged from the water discharge pipe and is not full of the whole water pipe, and the water discharge at this time is: area from the bottom of the water pipe to the water surface and water velocity in the horizontal direction outside. The problem of exist among the prior art can't carry out accurate control to the displacement of drain pipe is solved, accurate control improves convenience, the security of construction.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A method for detecting water displacement based on video data is characterized by comprising the following steps:
the method comprises the following steps of installing a camera right in front of drainage equipment, enabling a water outlet to be kept horizontally installed and fixed, calibrating the length of a gravity hammer, drawing a video stream from the camera, calibrating the specific position of the gravity hammer according to picture content, and marking the length of the gravity hammer according to field measurement;
decoding a video frame, converting an image into an RGB format and zooming to a model input size;
performing image segmentation, wherein the image segmentation comprises the background, a drain pipe, a discharge area and water flow;
if the drain pipe, the discharge area and the water flow are not detected, reporting that the field equipment is abnormal;
if the water flow length is larger than a certain value, the water flow of the coil water pipe is considered to be full, and the instantaneous water discharge is as follows: the internal cross-sectional area of the water pipe and the external horizontal water flow speed;
if the water flow length is less than the specific value, the water is judged to be discharged from the water discharge pipe and is not full of the whole water pipe, and the water discharge at the moment is as follows: area from the bottom of the water pipe to the water surface and water velocity in the horizontal direction outside.
2. The method of claim 1, comprising the steps of: and based on the water displacement, calculating a period of time, removing the data with the minimum water displacement and the data with the maximum water displacement, and averaging the sum of other water displacements to obtain the statistical average water displacement in the period of time.
3. The method of claim 1, wherein the image segmentation uses a Deeplab V3+ image segmentation algorithm, a gravity weight is used to calibrate the absolute vertical direction, and the ratio of the unit distance to the actual distance in the frame is calibrated.
4. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to perform the method of detecting water displacement based on video data according to any one of claims 1 to 3.
5. A computer-readable storage medium on which a computer program is stored, the computer program, when being executed by a processor, implementing the method for detecting a water discharge amount based on video data according to any one of claims 1 to 3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211668839.3A CN115861272A (en) | 2022-12-24 | 2022-12-24 | Water displacement detection method based on video data and electronic device |
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| CN202211668839.3A CN115861272A (en) | 2022-12-24 | 2022-12-24 | Water displacement detection method based on video data and electronic device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115546561A (en) * | 2022-10-25 | 2022-12-30 | 中山大学 | Intermontane stream measurement and inspection method based on water body coverage characteristic identification |
| CN116629844A (en) * | 2023-07-26 | 2023-08-22 | 山东碧汀智能科技有限公司 | Automatic dispatch method and system for operation and maintenance of drinking water equipment |
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2022
- 2022-12-24 CN CN202211668839.3A patent/CN115861272A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115546561A (en) * | 2022-10-25 | 2022-12-30 | 中山大学 | Intermontane stream measurement and inspection method based on water body coverage characteristic identification |
| CN116629844A (en) * | 2023-07-26 | 2023-08-22 | 山东碧汀智能科技有限公司 | Automatic dispatch method and system for operation and maintenance of drinking water equipment |
| CN116629844B (en) * | 2023-07-26 | 2023-09-26 | 山东碧汀智能科技有限公司 | Automatic dispatch method and system for operation and maintenance of drinking water equipment |
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