CN109029297B - Gas tank operation parameter monitoring system based on machine vision - Google Patents
Gas tank operation parameter monitoring system based on machine vision Download PDFInfo
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- CN109029297B CN109029297B CN201811002909.5A CN201811002909A CN109029297B CN 109029297 B CN109029297 B CN 109029297B CN 201811002909 A CN201811002909 A CN 201811002909A CN 109029297 B CN109029297 B CN 109029297B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 47
- 238000004891 communication Methods 0.000 claims abstract description 28
- 238000005259 measurement Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 3
- 238000012806 monitoring device Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The gas tank operation parameter monitoring system based on machine vision comprises a controller and a monitoring mechanism; the monitoring mechanism comprises a machine vision assembly and a laser emission assembly; the plurality of groups of machine vision components are uniformly arranged on the upper surface of the piston; the plurality of groups of laser emission components are uniformly arranged on the lower surface of the top of the cabinet body; the controller is internally provided with a data calibration module, a drift amount and torsion amount monitoring module, a machine vision communication module, an inclination amount and cabinet capacity detection module, a monitoring main module and a control output module which are connected. The invention has the advantages of simplicity, low cost, strong real-time performance, advanced technology, safety and reliability, overcomes the defects of other measurement modes, saves time and labor, has strong controllability, and fills the blank of the technology for measuring the comprehensive operation parameters of the gas tank by using the machine vision technology.
Description
Technical Field
The invention belongs to the technical field of industrial measurement, relates to a gas tank monitoring device, and in particular relates to a system for on-line monitoring of gas tank operation parameters based on machine vision.
Background
The gas tank is one of important production facilities of industrial enterprises, and plays an extremely important role in daily production and life. At present, the comprehensive monitoring device for the operation parameters of the gas tank is gradually put into use. However, a monitoring device adopting a machine vision technology for measuring all parameters is not available at present.
The Chinese patent 'measuring device and measuring method (application number 201810515875.3) for the piston torsion of the gas tank based on machine vision' is a monitoring device based on machine vision applied by the applicant, but the device can only realize the monitoring and measurement of the piston torsion of the gas tank, has single function, cannot meet the current online real-time monitoring of the rest operating parameters of the piston of the gas tank, and cannot be accepted by vast users.
Disclosure of Invention
The invention aims to provide a system for on-line monitoring various operating parameters of a gas tank based on machine vision, so as to solve the defects in the prior art.
In order to achieve the aim of the invention, the following technical scheme is adopted: the system is matched with a gas tank for use, a piston is arranged in the tank body of the gas tank, the monitoring system comprises a controller arranged outside the tank body and a monitoring mechanism arranged inside the tank body, and the controller is connected with the monitoring mechanism through a communication cable;
the monitoring mechanism comprises a machine vision assembly and a laser emission assembly;
the plurality of groups of machine vision components are uniformly arranged on the upper surface of the piston, and comprise a central machine vision component arranged at the central position of the piston, and an inclined machine vision component and a torsion machine vision component which are arranged on the periphery of the central machine vision component;
the plurality of groups of laser emission components are uniformly arranged on the lower surface of the top of the cabinet body and comprise a central laser emission component arranged at the central position of the top of the cabinet body, and an inclined laser emission component and a torsion laser emission component which are arranged on the periphery of the central laser emission component;
the controller is internally provided with a data calibration module, a drift amount and torsion amount monitoring module, a machine vision communication module, an inclination amount and cabinet capacity detection module, a monitoring main module and a control output module which are connected;
each machine vision component is connected with the machine vision communication module through a communication cable;
each laser emission component is connected with a power terminal of the controller.
The plurality of machine vision components and the plurality of laser emission components are uniformly arranged on the upper surface of the piston and the lower surface of the top of the cabinet body respectively, and the arrangement forms are the same, and the opposite components are in one-to-one correspondence up and down.
The central laser emission component and the central machine vision component are vertically corresponding and are used for measuring the cabinet position, the cabinet capacity, the cabinet speed and the drift amount of the gas cabinet;
the central laser emission component is fixed on the center of a mounting hole or an overhaul platform in the center of the top of the gas cabinet body, and the central machine vision component is fixed on the center of the upper surface of the gas cabinet;
the central laser emitting assembly is centrally aligned with the central machine vision assembly.
The inclined laser emission assembly is uniformly arranged on the periphery of the central laser emission assembly along the circumferential direction; the inclined machine vision component is uniformly arranged on the periphery of the central machine vision component along the circumferential direction; the centers of the oblique laser emitting assembly and the oblique machine vision assembly are aligned up and down.
The inclined laser emission component and the inclined machine vision component are in one-to-one correspondence up and down to form an inclined offset measurement group; each monitoring system includes the above-described measurement sets 4-8.
The torsion laser emission component is arranged on an installation hole at the upper part of the gas tank, is positioned on the circumference of the inclined laser emission component and is positioned between two adjacent inclined laser emission components; the torsion machine vision component is arranged on the upper surface of the gas tank piston, is positioned on the circumference of the inclined machine vision component and is positioned between two adjacent machine vision components; the torsional laser emitting assembly is aligned up and down with the torsional machine vision assembly center.
The cabinet position measurement is completed by a central laser emission component and a central machine vision component;
the measurement of the inclination offset and the inclination direction of the gas holder piston is completed by an inclination laser emission component and an inclination machine vision component;
the measurement of the drift amount and the drift azimuth of the gas holder piston is completed by a central laser emission component and a central machine vision component;
the measuring of the torsion amount and the torsion direction of the gas tank piston is completed by a central laser emission component, a torsion laser emission component, a central machine vision component and a torsion machine vision component.
The monitoring main module of the controller displays comprehensive real-time measured values of the operation parameters of the gas tank;
the data calibration module is connected with each machine vision component through the sensor communication module and is used for completing data acquisition;
the control output module of the controller is used for outputting various control signals.
Compared with the prior art, the monitoring system disclosed by the invention is attached to a machine vision technology aiming at variable monitoring of a piston in a gas tank, adopts a mode of centralized management and separate measurement to realize online real-time monitoring of each parameter in the gas tank, and has the advantages that all measuring modes are non-contact measurement and no mechanical movable part; the technical scheme is simple, low in cost, strong in real-time performance, advanced in technology, safe and reliable, overcomes the defects of other measurement modes, realizes monitoring and measurement of various operation parameters by one set of monitoring system, saves time and labor, has strong controllability, and fills the blank of the technology for measuring the comprehensive operation parameters of the gas holder by using the machine vision technology.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a block diagram showing the connection relationship between each component and the controller in the present invention.
FIG. 3 is a block diagram showing the connection relationship between the modules in the controller according to the present invention.
In the figure: the gas cabinet comprises a gas cabinet body 1, a piston 2, a controller 3 and a communication cable 4;
an L1 central laser emission component, an L2 oblique laser emission component, an L3 oblique laser emission component, an L4 oblique laser emission component, an L5 oblique laser emission component and an L6 torsion laser emission component; m1 center machine vision assembly, M2 tilt machine vision assembly, M3 tilt machine vision assembly, M4 tilt machine vision assembly, M5 tilt machine vision assembly, M6 twist machine vision assembly.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to the attached drawings, the gas tank operation parameter monitoring system based on machine vision disclosed by the invention is matched with a gas tank, a piston 2 is arranged in a tank body 1 of the gas tank, and the detection system comprises a controller 3 arranged outside the tank body and a monitoring mechanism arranged inside the tank body. The monitoring mechanism comprises a machine vision assembly and a laser emission assembly. The controller is connected with the monitoring mechanism through a communication cable 4.
The machine vision components comprise an M1 central machine vision component, an M2 inclined machine vision component, an M3 inclined machine vision component, an M4 inclined machine vision component, an M5 inclined machine vision component and an M6 torsion machine vision component;
the laser emission component comprises an L1 center laser emission component, an L2 inclined laser emission component, an L3 inclined laser emission component, an L4 inclined laser emission component, an L5 inclined laser emission component and an L6 torsion laser emission component.
The plurality of groups of machine vision components are uniformly arranged on the upper surface of the piston, and comprise a central machine vision component arranged at the central position of the piston, and an inclined machine vision component and a torsion machine vision component which are arranged on the periphery of the central machine vision component; the plurality of groups of laser emission components are uniformly arranged on the lower surface of the top of the cabinet body, and comprise a central laser emission component arranged at the central position of the top of the cabinet body, and an inclined laser emission component and a torsion laser emission component which are arranged on the periphery of the central laser emission component.
The machine vision assembly and the laser emission assembly are connected with the controller through communication cables. In this embodiment, the machine vision component is connected to the controller communication module through a communication cable.
The plurality of machine vision components and the plurality of laser emission components are uniformly arranged on the upper surface of the piston and the lower surface of the top of the cabinet body respectively, and the arrangement forms are the same, and the opposite components are in one-to-one correspondence up and down.
The inclined laser emission component and the inclined machine vision component are in one-to-one correspondence up and down to form an inclined offset measurement group; each monitoring system comprises 4-8 groups of the above-mentioned measuring groups, in this embodiment, the number of the measuring groups is four groups, and the measuring groups are respectively arranged on the cross lines of the over center.
The central laser emission component and the central machine vision component are vertically corresponding and are used for measuring the cabinet position, the cabinet capacity and the cabinet speed of the gas cabinet; the central laser emission component is fixed on the center of a mounting hole or an overhaul platform in the center of the top of the gas cabinet body, and the central machine vision component is fixed on the center of the upper surface of the gas cabinet; the central laser emitting assembly is centrally aligned with the central machine vision assembly.
The inclined laser emission assembly is uniformly arranged on the periphery of the central laser emission assembly along the circumferential direction; the inclined machine vision component is uniformly arranged on the periphery of the central machine vision component along the circumferential direction; the centers of the oblique laser emitting assembly and the oblique machine vision assembly are aligned up and down.
The torsion laser emission component is arranged on an installation hole at the upper part of the gas tank, is positioned on the circumference of the inclined laser emission component and is positioned between two adjacent inclined laser emission components; the torsion machine vision component is arranged on the upper surface of the gas tank piston, is positioned on the circumference of the inclined machine vision component and is positioned between two adjacent machine vision components; the torsional laser emitting assembly is aligned up and down with the torsional machine vision assembly center.
The controller is internally provided with a data calibration module, a drift amount and torsion amount monitoring module, a machine vision communication module, an inclination amount and cabinet capacity detection module, a monitoring main module and a control output module which are connected; each machine vision component is connected with the machine vision communication module through a communication cable; each laser emission component is connected with a power terminal in the controller through a control cable respectively to realize power supply.
The cabinet position measurement is completed by a central laser emitting component L1 and a central machine vision component M1, and is connected to the controller communication module through a communication cable. The tilt offset and tilt orientation of the gas holder piston are measured by tilt laser emitting assemblies L2, L3, L4, L5 and tilt machine vision assemblies M2, M3, M4, M5. The inclined machine vision component is connected to the sensor communication module of the controller through a communication cable. The drift amount and the drift azimuth of the gas holder piston are measured by the central laser emitting component L1 and the central machine vision component M1. The central machine vision module M1 is connected to the sensor communication module of the controller through a communication cable. The torsion amount and the torsion direction of the gas tank piston are measured by the central laser emitting component L1 and the torsion laser emitting component L6, the central machine vision component M1 and the torsion machine vision component M6. The central machine vision component M1 and the torsion machine vision component M6 are connected to the sensor communication module of the controller through communication cables.
The monitoring main module of the controller displays comprehensive real-time measured values of the operation parameters of the gas tank; the data calibration module is connected with each machine vision component through the sensor communication module and is used for completing data acquisition; the control output module of the controller is used for outputting various control signals.
Claims (8)
1. The system is matched with a gas tank for use, a piston is arranged in the tank body of the gas tank, the monitoring system comprises a controller arranged outside the tank body and a monitoring mechanism arranged inside the tank body, and the controller is connected with the monitoring mechanism through a communication cable; the method is characterized in that:
the monitoring mechanism comprises a machine vision assembly and a laser emission assembly;
the plurality of groups of machine vision components are uniformly arranged on the upper surface of the piston, and comprise a central machine vision component arranged at the central position of the piston, and an inclined machine vision component and a torsion machine vision component which are arranged on the periphery of the central machine vision component;
the plurality of groups of laser emission components are uniformly arranged on the lower surface of the top of the cabinet body and comprise a central laser emission component arranged at the central position of the top of the cabinet body, and an inclined laser emission component and a torsion laser emission component which are arranged on the periphery of the central laser emission component;
the controller is internally provided with a data calibration module, a drift amount and torsion amount monitoring module, a machine vision communication module, an inclination amount and cabinet capacity detection module, a monitoring main module and a control output module which are connected;
each machine vision component is connected with the machine vision communication module through a communication cable;
each laser emission component is connected with a power terminal of the controller.
2. The machine vision-based gas holder operating parameter monitoring system of claim 1, wherein: the plurality of machine vision components and the plurality of laser emission components are uniformly arranged on the upper surface of the piston and the lower surface of the top of the cabinet body respectively, and the arrangement forms are the same, and the opposite components are in one-to-one correspondence up and down.
3. The machine vision-based gas holder operating parameter monitoring system of claim 1, wherein:
the central laser emission component and the central machine vision component are vertically corresponding and are used for measuring the cabinet position, the cabinet capacity, the cabinet speed and the drift amount of the gas cabinet;
the central laser emission component is fixed on the center of a mounting hole or an overhaul platform in the center of the top of the gas cabinet body, and the central machine vision component is fixed on the center of the upper surface of the gas cabinet;
the central laser emitting assembly is centrally aligned with the central machine vision assembly.
4. The machine vision-based gas holder operating parameter monitoring system of claim 1, wherein: the inclined laser emission assembly is uniformly arranged on the periphery of the central laser emission assembly along the circumferential direction; the inclined machine vision component is uniformly arranged on the periphery of the central machine vision component along the circumferential direction; the centers of the oblique laser emitting assembly and the oblique machine vision assembly are aligned up and down.
5. The machine vision-based gas holder operating parameter monitoring system of claim 4, wherein: the inclined laser emission component and the inclined machine vision component are in one-to-one correspondence up and down to form an inclined offset measurement group; each monitoring system includes the above-described measurement sets 4-8.
6. The machine vision-based gas holder operating parameter monitoring system of claim 1, wherein: the torsion laser emission component is arranged on an installation hole at the upper part of the gas tank, is positioned on the circumference of the inclined laser emission component and is positioned between two adjacent inclined laser emission components; the torsion machine vision component is arranged on the upper surface of the gas tank piston, is positioned on the circumference of the inclined machine vision component and is positioned between two adjacent machine vision components; the torsional laser emitting assembly is aligned up and down with the torsional machine vision assembly center.
7. The machine vision-based gas holder operating parameter monitoring system of any one of claims 1-6, wherein:
the cabinet position measurement is completed by a central laser emission component and a central machine vision component;
the measurement of the inclination offset and the inclination direction of the gas holder piston is completed by an inclination laser emission component and an inclination machine vision component;
the measurement of the drift amount and the drift azimuth of the gas holder piston is completed by a central laser emission component and a central machine vision component;
the measuring of the torsion amount and the torsion direction of the gas tank piston is completed by a central laser emission component, a torsion laser emission component, a central machine vision component and a torsion machine vision component.
8. The machine vision-based gas holder operating parameter monitoring system of claim 1, wherein:
the monitoring main module of the controller displays comprehensive real-time measured values of the operation parameters of the gas tank;
the data calibration module is connected with each machine vision component through the sensor communication module and is used for completing data acquisition;
the control output module of the controller is used for outputting various control signals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811002909.5A CN109029297B (en) | 2018-08-30 | 2018-08-30 | Gas tank operation parameter monitoring system based on machine vision |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811002909.5A CN109029297B (en) | 2018-08-30 | 2018-08-30 | Gas tank operation parameter monitoring system based on machine vision |
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| CN109029297A CN109029297A (en) | 2018-12-18 |
| CN109029297B true CN109029297B (en) | 2023-12-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110823152A (en) * | 2019-11-14 | 2020-02-21 | 武汉顶力康自动化有限公司 | Automatic monitoring device and method for piston drift of gas chamber |
| CN114061807B (en) * | 2021-11-02 | 2023-05-26 | 中冶南方工程技术有限公司 | Measuring device for piston torsion value of rubber membrane sealed gas tank |
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2018
- 2018-08-30 CN CN201811002909.5A patent/CN109029297B/en active Active
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| GB354444A (en) * | 1930-05-29 | 1931-08-13 | Gas Light & Coke Co | Improvements in or relating to clinometric apparatus |
| KR20090110495A (en) * | 2008-04-18 | 2009-10-22 | 주식회사 미르기술 | Vision inspection system |
| CN203572452U (en) * | 2013-07-12 | 2014-04-30 | 唐山市建华自动控制设备厂 | Data acquisition device for inclination offset of gas tank piston |
| CN107393270A (en) * | 2017-07-26 | 2017-11-24 | 河海大学常州校区 | A kind of portable vision inspection device and method for electric meter detection |
| CN108362231A (en) * | 2018-05-25 | 2018-08-03 | 唐山市建华自动控制设备厂 | The measuring device and measuring method of gas chamber piston torsional capacity based on machine vision |
| CN208520341U (en) * | 2018-08-30 | 2019-02-19 | 唐山市建华自动控制设备厂 | Gas chamber operating parameter based on machine vision monitors system |
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| 在线安全检测在转炉煤气柜中的设计和应用;张长缨;常士中;关云鹏;李海滨;于海生;;中国安全生产科学技术(02);全文 * |
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