CN109660709B - Use method of intelligent camera embedded with liquid level real-time detection function - Google Patents
Use method of intelligent camera embedded with liquid level real-time detection function Download PDFInfo
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- CN109660709B CN109660709B CN201910036562.4A CN201910036562A CN109660709B CN 109660709 B CN109660709 B CN 109660709B CN 201910036562 A CN201910036562 A CN 201910036562A CN 109660709 B CN109660709 B CN 109660709B
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- 239000007788 liquid Substances 0.000 title claims abstract description 81
- 238000011897 real-time detection Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 13
- 238000001514 detection method Methods 0.000 claims description 23
- 230000008859 change Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000007781 pre-processing Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000003208 petroleum Substances 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
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- Signal Processing (AREA)
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- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses an intelligent camera embedded with a liquid level real-time detection function, which comprises a camera body, wherein the camera body comprises a front shell, a middle shell and a rear shell, the front shell, the middle shell and the rear shell are connected in a clamping way, a main control core board, a power board and a camera module are arranged between the front shell and the middle shell, and an interface board is arranged between the middle shell and the rear shell. The liquid level instrument equipment based on image recognition expands the types of the liquid level instrument equipment, expands the environment range suitable for the liquid level instrument and provides more choices for users.
Description
Technical Field
The invention relates to the technical field of intelligent cameras, in particular to a use method of an intelligent camera embedded with a liquid level real-time detection function.
Background
With the development of various industries such as chemical industry, food, petroleum, storage and the like, the automatic tank body metering technology has become more and more important for the part related to liquid storage. The liquid level is an important parameter for automatic metering, and whether the liquid level is measured accurately or not plays a very important role. In chemical plants in China, thousands of storage tanks are located, and the accuracy, reliability and instantaneity of liquid level parameter measurement play a key role in production.
The current liquid level detection method internationally and generally uses a self-recording water level meter, and the mode of sensing the water level can be divided into: one is contact type, which mainly comprises a float type and a pressure type; one is non-contact, mainly including ultrasonic, radar, etc.
Most no data teletransmission function of traditional level gauge can't combine together liquid level detection function and real-time video observation, and different level gauges have the requirement to the environment of use, and the level gauge equipment cost who uses in some environment is high.
Disclosure of Invention
The invention aims to provide a use method of an intelligent camera embedded with a liquid level real-time detection function, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the intelligent camera with the embedded liquid level real-time detection function comprises a camera body, wherein the camera body comprises a front shell, a middle shell and a rear shell, the front shell, the middle shell and the rear shell are connected in a clamping mode, a main control core plate, a power panel and a camera module are installed between the front shell and the middle shell, and an interface plate is installed between the middle shell and the rear shell.
Preferably, the main control core board is provided with a main control unit, a serial port unit and a network port unit, the camera module collects pictures of the liquid level meter, the camera module is connected with the main control unit, the main control unit is connected with an interface board through the serial port unit, and the interface board is connected with user equipment through an RS485 and a current loop; the main control unit is connected with the user terminal through the network port unit, and an algorithm module and a video coding module are arranged in the main control unit.
Preferably, the method of use comprises the steps of:
A. the camera module collects the pictures of the liquid level meter and provides the pictures to the algorithm module and the video coding module in the main control unit;
B. the algorithm module analyzes the picture to obtain a liquid level result of the liquid level meter, the liquid level result is output to the interface board through the serial port unit, and the interface board is output to the user equipment through the RS485 and the current loop;
C. the video coding module codes the pictures and the liquid level results into video streams, and the video streams are output through the internet access and are provided for users to visit and watch.
Preferably, the flow of the liquid level detection algorithm of the liquid level meter in the step a is as follows:
a. image preprocessing: the wide dynamic, 3D filtering and distortion correcting functions of the network camera and the self-realized median filtering function are utilized to optimize images and reduce image noise;
b. liquid level characteristic detection: aiming at the characteristics that the liquid level surface of the liquid level meter is clear up and down and the liquid level changes continuously, a method of single-frame image detection and front-and-back frame difference detection is adopted to obtain two groups of characteristic results;
c. and (4) analyzing the reasonability of results: aiming at two groups of results obtained in the liquid level characteristic detection stage, comparing reliability parameters of the two groups of results, and combining the last prediction to obtain an optimal result;
d. prediction of the next outcome: considering that no sudden change occurs in the continuous real-time video liquid level detection, the speed of liquid level change can be obtained through historical results, and the prediction of the next result can be made.
Compared with the prior art, the invention has the beneficial effects that: the invention has novel structural design, enables a user to observe the surrounding state of the detected object through the real-time video, detects the liquid level through an image processing algorithm and provides accurate liquid level data for the user. The liquid level instrument equipment based on image recognition expands the types of the liquid level instrument equipment, expands the environment range suitable for the liquid level instrument and provides more choices for users. The invention liberates the tedious work of observing the liquid level position by human eyes to a certain extent, and the embedded liquid level detection algorithm adopts the process of identifying the liquid level by simulating human eyes, thereby having the characteristics of high reliability and strong anti-interference capability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a block diagram of the control scheme of the present invention;
FIG. 3 is a flow chart 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 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. 1-3, the present invention provides a technical solution: the intelligent camera with the embedded liquid level real-time detection function comprises a camera body, wherein the camera body comprises a front shell 1, a middle shell 2 and a rear shell 3, the front shell 1, the middle shell 2 and the rear shell 3 are connected in a clamping mode, a main control core plate 4, a power panel 5 and a camera module 6 are installed between the front shell 1 and the middle shell 2, and an interface board 7 is installed between the middle shell 2 and the rear shell 3.
In the invention, a main control unit 8, a serial port unit 9 and a network port unit 10 are arranged on a main control core board 4, a camera module 6 collects pictures of a liquid level meter 11, the camera module 6 is connected with the main control unit 8, the main control unit 8 is connected with an interface board 7 through the serial port unit 9, and the interface board 7 is connected with a user device 12 through an RS485 and a current loop; the main control unit 8 is connected to a user terminal 13 through a network interface unit 10, and an algorithm module 14 and a video coding module 15 are arranged in the main control unit 8.
The using method of the invention comprises the following steps:
A. the camera module collects the pictures of the liquid level meter and provides the pictures to the algorithm module and the video coding module in the main control unit;
B. the algorithm module analyzes the picture to obtain a liquid level result of the liquid level meter, the liquid level result is output to the interface board through the serial port unit, and the interface board is output to the user equipment through the RS485 and the current loop;
C. the video coding module codes the pictures and the liquid level results into video streams, and the video streams are output through the internet access and are provided for users to visit and watch.
In addition, in the invention, the flow of the liquid level detection algorithm of the liquid level meter in the step A is as follows:
a. image preprocessing: the wide dynamic, 3D filtering and distortion correcting functions of the network camera and the self-realized median filtering function are utilized to optimize images and reduce image noise;
b. liquid level characteristic detection: aiming at the characteristics that the liquid level surface of the liquid level meter is clear up and down and the liquid level changes continuously, a method of single-frame image detection and front-and-back frame difference detection is adopted to obtain two groups of characteristic results;
c. and (4) analyzing the reasonability of results: aiming at two groups of results obtained in the liquid level characteristic detection stage, comparing reliability parameters of the two groups of results, and combining the last prediction to obtain an optimal result;
d. prediction of the next outcome: considering that no sudden change occurs in the continuous real-time video liquid level detection, the speed of liquid level change can be obtained through historical results, and the prediction of the next result can be made.
In conclusion, the liquid level detection device is novel in structural design, the user can observe the surrounding state of the detected object through the real-time video, the liquid level is detected through the image processing algorithm, and accurate liquid level data are provided for the user. The liquid level instrument equipment based on image recognition expands the types of the liquid level instrument equipment, expands the environment range suitable for the liquid level instrument and provides more choices for users. The invention liberates the tedious work of observing the liquid level position by human eyes to a certain extent, and the embedded liquid level detection algorithm adopts the process of identifying the liquid level by simulating human eyes, thereby having the characteristics of high reliability and strong anti-interference capability.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides an intelligent camera application method of embedded liquid level real-time detection function, intelligent camera of embedded liquid level real-time detection function includes the camera body, its characterized in that: the camera body comprises a front shell (1), a middle shell (2) and a rear shell (3), the front shell (1), the middle shell (2) and the rear shell (3) are connected in a clamping way, a main control core board (4), a power board (5) and a camera module (6) are arranged between the front shell (1) and the middle shell (2), an interface board (7) is arranged between the middle shell (2) and the rear shell (3), the main control core board (4) is provided with a main control unit (8), a serial port unit (9) and a network port unit (10), the camera module (6) collects pictures of the liquid level meter (11), the camera module (6) is connected with the main control unit (8), the main control unit (8) is connected with the interface board (7) through a serial port unit (9), the interface board (7) is connected with the user equipment (12) through an RS485 and a current loop; the main control unit (8) is connected with a user terminal (13) through a network port unit (10), and an algorithm module (14) and a video coding module (15) are arranged in the main control unit (8);
the use method of the intelligent camera with the embedded liquid level real-time detection function comprises the following steps:
A. the camera module collects the pictures of the liquid level meter and provides the pictures to the algorithm module and the video coding module in the main control unit;
B. the algorithm module analyzes the picture to obtain a liquid level result of the liquid level meter, the liquid level result is output to the interface board through the serial port unit, and the interface board is output to the user equipment through the RS485 and the current loop;
C. the video coding module codes the pictures and the liquid level results into video streams, and the video streams are output through the internet access and are provided for users to visit and watch;
the flow of the liquid level detection algorithm of the liquid level meter in the step A is as follows:
a. image preprocessing: the wide dynamic, 3D filtering and distortion correcting functions of the network camera and the self-realized median filtering function are utilized to optimize images and reduce image noise;
b. liquid level characteristic detection: aiming at the characteristics that the liquid level surface of the liquid level meter is clear up and down and the liquid level changes continuously, a method of single-frame image detection and front-and-back frame difference detection is adopted to obtain two groups of characteristic results;
c. and (4) analyzing the reasonability of results: aiming at two groups of results obtained in the liquid level characteristic detection stage, comparing reliability parameters of the two groups of results, and combining the last prediction to obtain an optimal result;
d. prediction of the next outcome: considering that no sudden change occurs in the continuous real-time video liquid level detection, the speed of liquid level change can be obtained through historical results, and the prediction of the next result can be made.
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Denomination of invention: An application method of intelligent camera with embedded liquid level real-time detection function Effective date of registration: 20210909 Granted publication date: 20210406 Pledgee: Bank of China Limited Nantong Gangzha sub branch Pledgor: JIANGSU DFSAI OPTOELECTRONIC Co.,Ltd. Registration number: Y2021980009078 |