CN111238649A - Oil-immersed transformer operation abnormity judgment system and method based on infrared temperature measurement - Google Patents
Oil-immersed transformer operation abnormity judgment system and method based on infrared temperature measurement Download PDFInfo
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- CN111238649A CN111238649A CN202010129203.6A CN202010129203A CN111238649A CN 111238649 A CN111238649 A CN 111238649A CN 202010129203 A CN202010129203 A CN 202010129203A CN 111238649 A CN111238649 A CN 111238649A
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000002159 abnormal effect Effects 0.000 claims abstract description 25
- 230000017525 heat dissipation Effects 0.000 claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000001931 thermography Methods 0.000 claims description 18
- 238000010191 image analysis Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0037—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the heat emitted by liquids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/48—Thermography; Techniques using wholly visual means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Radiation Pyrometers (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses an oil-immersed transformer operation abnormity judgment system and method based on infrared temperature measurement, and belongs to the field of oil-immersed transformer temperature measurement. The invention adopts the transformer oil temperature sensor and the surface infrared camera to collect two real-time temperatures inside and outside the transformer, records the temperature values inside and outside the transformer to judge the problem of heat dissipation of the transformer, and carries out early warning treatment. According to the invention, whether the operation of the transformer is abnormal or not is judged by the temperature monitoring and prejudging method, so that double guarantee is provided for temperature monitoring of equipment, and a judgment basis is provided for operation and maintenance of the oil-immersed transformer.
Description
Technical Field
The invention belongs to the field of temperature measurement of oil-immersed transformers, and particularly relates to an oil-immersed transformer operation abnormity judgment system and method based on infrared temperature measurement.
Background
The oil-immersed transformer adopts a closed structure, has poor heat dissipation effect and large heat accumulation, is in a high-voltage, large-current and full-load running state for a long time, directly leads to heat concentration aggravation and temperature rise, and threatens the electrical insulation performance. The transformer overheating fault is a common multiple fault and has a serious threat to the safe operation and the service life of the transformer.
The transformer generates heat during operation, thereby causing the body of the transformer to heat and increase in temperature. The insulating oil inside the transformer transfers heat to the external cooling medium through the radiator. After a period of time, the temperature rise of the insulating oil in the body is stable. When the transformer cooling device is abnormally operated, the internal fastening screw joint is loosened, internal short-circuit discharge occurs, the transformer is overloaded and the like, the original stability of the oil temperature of the transformer body is broken, the oil temperature continuously rises, and meanwhile, the surface temperature of the transformer body continuously rises, so that the oil temperature and the surface temperature of the transformer body can indirectly reflect whether the transformer is normally operated or not. Whether traditional transformer operation is normal often all monitors the inside oil temperature of transformer body through the sensor mode, and this kind of judgement mode is the unidimensional, and relies on the sensor to correctly carry out temperature acquisition, if the sensor damages or data takes place the skew, then causes the mistake easily and reports an emergency and asks for help or increased vigilance. In addition, the comparison of the surface temperature of the monitoring transformer and the oil temperature can reflect the heat dissipation capacity of the transformer, if the heat dissipation capacity is weak, the transformer can be judged to be more easily damaged in the high-load operation, and protective measures are required to be added.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide an oil-immersed transformer operation abnormality determination system and method based on infrared temperature measurement, which can effectively solve the problems in the prior art.
The invention adopts the following technical scheme: the utility model provides an oil-immersed transformer abnormal operation judgement system based on infrared temperature measurement, includes infrared thermal imaging camera and temperature acquisition sensor, the temperature acquisition sensor sets up inside the transformer, infrared thermal imaging camera sets up outside the transformer, temperature acquisition sensor and infrared thermal imaging camera are connected with the server through wireless transmission respectively, the server is connected with backstage monitoring platform.
Preferably, the device further comprises an infrared image acquisition module, an image analysis module, a prompt module and an image display module;
the infrared image acquisition module is used for acquiring an infrared image of the infrared thermal imaging camera, and a temperature result is displayed in the infrared image;
the image analysis module is used for analyzing the infrared image, generating reminding information and abnormal temperature area information when determining the abnormal temperature area in the infrared image, and storing the reminding information and the abnormal temperature area information into a server;
and the image display module is used for calling the temperature abnormal region information from the server and adding the temperature abnormal region information to the background monitoring platform for display.
The method comprises the steps of respectively carrying out timing acquisition on the internal oil temperature and the surface temperature of a measured transformer through a temperature acquisition sensor and an infrared thermal imaging camera, and acquiring the real-time surface temperature of the transformer and the internal oil temperature change curve in the long-time operation process.
Preferably, the method specifically comprises the following steps:
a. acquiring the oil temperature of an oil-immersed transformer body by using a temperature acquisition sensor, and recording historical data to form a temperature curve;
b. acquiring the surface temperature of the transformer by using an infrared thermal imaging camera, and recording historical data to form a temperature curve;
c. recording the oil temperature and the surface infrared temperature measurement data of the transformer, comparing the oil temperature and the surface temperature of the transformer body, and judging whether the running state of the transformer is abnormal or not by combining historical data graphs monitored by the oil temperature and the surface temperature of the transformer body.
Preferably, in the step c, if the surface temperature of the transformer is alarmed and the temperature change curve of the transformer body in the recent time of the oil temperature is continuously increased, the transformer can be judged to have a high temperature problem;
preferably, if the transformer oil temperature is alarmed at a high temperature, and the surface temperature curve collected by the infrared camera is continuously increased, it can be judged that the transformer has a weak heat dissipation capability and cannot meet the heat dissipation requirement required by normal operation.
Preferably, the method further comprises the following steps:
recording the internal and external temperature values of the transformer, calculating the ratio of the external temperature to the internal temperature at 0 point every night, comparing historical data of the time period, judging that the transformer has a problem in heat dissipation if the ratio of the external temperature to the internal temperature is greater than 75% and the ratio of the historical data of the time period does not exceed the limit value, and performing early warning processing.
The invention has the beneficial effects that:
the input of the invention is two groups of temperature measurement data, and the inner temperature measurement sensor and the outer temperature measurement sensor are used, so that the monitoring data of the temperature of the transformer can be continuously provided under the condition that a certain sensor is damaged, and double guarantee is provided for the temperature monitoring of equipment.
The running state of the transformer can be accurately pre-judged by adopting a comparison method combining the internal oil temperature and the surface temperature of the transformer, and the working pressure of operation and maintenance personnel is reduced.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a schematic diagram of the steps of the method of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Referring to the attached drawings of the specification, the oil-immersed transformer operation abnormity judgment system based on infrared temperature measurement comprises an infrared thermal imaging camera and a temperature acquisition sensor, wherein the temperature acquisition sensor is arranged inside a transformer, the infrared thermal imaging camera is arranged outside the transformer, the temperature acquisition sensor and the infrared thermal imaging camera are respectively connected with a server through wireless transmission, and the server is connected with a background monitoring platform.
In one embodiment, the device further comprises an infrared image acquisition module, an image analysis module, a prompt module and an image display module;
the infrared image acquisition module is used for acquiring an infrared image of the infrared thermal imaging camera, and a temperature result is displayed in the infrared image;
the image analysis module is used for analyzing the infrared image, generating reminding information and abnormal temperature area information when determining the abnormal temperature area in the infrared image, and storing the reminding information and the abnormal temperature area information into a server;
and the image display module is used for calling the temperature abnormal region information from the server and adding the temperature abnormal region information to the background monitoring platform for display.
According to the oil-immersed transformer operation abnormity judging method based on infrared temperature measurement, the temperature acquisition sensor and the infrared thermal imaging camera are used for respectively carrying out timing acquisition on the internal oil temperature and the surface temperature of the measured transformer, and the real-time surface temperature of the transformer and the internal oil temperature change curve in the long-time operation process are obtained.
In one embodiment, the method specifically includes the following steps:
a. acquiring the oil temperature of an oil-immersed transformer body by using a temperature acquisition sensor;
b. storing the data in a server through wireless transmission, and recording historical data to form a body oil temperature curve;
c. acquiring the surface temperature of the transformer by using an infrared thermal imaging camera, and recording historical data to form a temperature curve;
d. storing the data in a server through wireless transmission, and recording historical data to form a body oil temperature curve;
e. the image analysis module compares the oil temperature and the surface temperature of the transformer body, and judges whether the running state of the transformer is abnormal or not by combining historical data curve graphs monitored by the oil temperature and the surface temperature of the transformer body.
In the step e, if the surface temperature of the transformer is alarmed and the temperature change curve of the transformer body in the recent time of the oil temperature is continuously increased, the transformer can be judged to have a high temperature problem;
if the transformer oil temperature is alarmed at a high temperature, and the surface temperature curve collected by the infrared camera is continuously increased, the transformer can be judged to have weaker heat dissipation capability and cannot meet the heat dissipation requirement required by normal operation.
In one embodiment, the method may further include the steps of:
recording the internal and external temperature values of the transformer, calculating the ratio of the external temperature to the internal temperature at 0 point every night, comparing historical data of the time period, judging that the transformer has a problem in heat dissipation if the ratio of the external temperature to the internal temperature is greater than 75% and the ratio of the historical data of the time period does not exceed the limit value, and performing early warning processing.
And the image display module is used for calling the temperature abnormal region information from the server and adding the temperature abnormal region information to the background monitoring platform for display.
The above is not relevant and is applicable to the prior art.
While certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing is illustrative only and is not limiting of the scope of the invention, as various modifications or additions may be made to the specific embodiments described and substituted in a similar manner by those skilled in the art without departing from the scope of the invention as defined in the appending claims. It should be understood by those skilled in the art that any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. The utility model provides an oil-immersed transformer abnormal operation judgement system based on infrared temperature measurement, its characterized in that, includes infrared thermal imaging camera and temperature acquisition sensor, the temperature acquisition sensor sets up inside the transformer, infrared thermal imaging camera sets up outside the transformer, temperature acquisition sensor and infrared thermal imaging camera are connected with the server through wireless transmission respectively, the server is connected with backstage monitoring platform.
2. The oil-immersed transformer abnormal operation judgment system based on infrared temperature measurement according to claim 1, characterized in that the device further comprises an infrared image acquisition module, an image analysis module, a prompt module and an image display module;
the infrared image acquisition module is used for acquiring an infrared image of the infrared thermal imaging camera, and a temperature result is displayed in the infrared image;
the image analysis module is used for analyzing the infrared image, generating reminding information and abnormal temperature area information when determining the abnormal temperature area in the infrared image, and storing the reminding information and the abnormal temperature area information into a server;
and the image display module is used for calling the temperature abnormal region information from the server and adding the temperature abnormal region information to the background monitoring platform for display.
3. The oil-immersed transformer operation abnormity judgment system based on infrared temperature measurement is characterized in that a temperature acquisition sensor and an infrared thermal imaging camera are used for respectively carrying out timing acquisition on the internal oil temperature and the surface temperature of a measured transformer to obtain the real-time surface temperature of the transformer and the internal oil temperature change curve in the long-time operation process.
4. The oil-immersed transformer operation abnormity judgment method based on infrared temperature measurement according to claim 3, specifically comprising the following steps:
a. acquiring the oil temperature of an oil-immersed transformer body by using a temperature acquisition sensor, and recording historical data to form a temperature curve;
b. acquiring the surface temperature of the transformer by using an infrared thermal imaging camera, and recording historical data to form a temperature curve;
c. recording the oil temperature and the surface infrared temperature measurement data of the transformer, comparing the oil temperature and the surface temperature of the transformer body, and judging whether the running state of the transformer is abnormal or not by combining historical data graphs monitored by the oil temperature and the surface temperature of the transformer body.
5. The method for judging the abnormal operation of the oil-immersed transformer based on the infrared temperature measurement according to claim 4, wherein in the step c, if the surface temperature of the transformer is alarmed and the temperature change curve of the body oil temperature of the transformer is continuously increased in the recent time, the transformer is judged to have the high temperature problem.
6. The oil-immersed transformer operation abnormity judgment method based on infrared temperature measurement according to claim 4, wherein in the step c, if the transformer oil temperature is alarmed at a high temperature, and the surface temperature curve collected by the infrared camera is continuously increased, it can be judged that the transformer has a weak heat dissipation capability and cannot meet the heat dissipation requirement required by normal operation.
7. The oil-immersed transformer operation abnormity judgment method based on infrared temperature measurement according to claim 4, characterized by further comprising the following steps:
recording the internal and external temperature values of the transformer, calculating the ratio of the external temperature to the internal temperature at 0 point every night, comparing historical data of the time period, judging that the transformer has a problem in heat dissipation if the ratio of the external temperature to the internal temperature is greater than 75% and the ratio of the historical data of the time period does not exceed the limit value, and performing early warning processing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010129203.6A CN111238649A (en) | 2020-02-28 | 2020-02-28 | Oil-immersed transformer operation abnormity judgment system and method based on infrared temperature measurement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010129203.6A CN111238649A (en) | 2020-02-28 | 2020-02-28 | Oil-immersed transformer operation abnormity judgment system and method based on infrared temperature measurement |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678558A (en) * | 2020-07-31 | 2020-09-18 | 国网四川省电力公司成都供电公司 | Infrared thermal imaging oil level and temperature monitoring system and method applied to oil filling equipment |
| CN111735545A (en) * | 2020-08-18 | 2020-10-02 | 四川华东电气集团有限公司 | Transformer substation infrared thermal imaging online monitoring method and system |
| CN112284451A (en) * | 2020-10-22 | 2021-01-29 | 北方联合电力有限责任公司包头第二热电厂 | Intelligent detection system, device and method for thermal information value |
| CN113390461A (en) * | 2021-06-04 | 2021-09-14 | 广西电网有限责任公司北海供电局 | Transformer dynamic capacity increasing system based on transformer monitoring |
| CN113532753A (en) * | 2021-07-15 | 2021-10-22 | 西安华控智能系统工程有限公司 | Wind power plant gear box oil leakage detection method based on machine vision |
| CN115219061A (en) * | 2022-09-13 | 2022-10-21 | 国网湖北省电力有限公司电力科学研究院 | Temperature monitoring method and system for on-load capacity and voltage regulating distribution transformer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198068A (en) * | 2013-12-05 | 2014-12-10 | 国家电网公司 | Temperature monitoring device and temperature monitoring method for winding of oil immersed transformer |
| CN205080995U (en) * | 2015-11-11 | 2016-03-09 | 刘云 | Novel oil -immersed transformer |
| CN207651328U (en) * | 2017-12-12 | 2018-07-24 | 华通机电股份有限公司 | A kind of oil-immersed transformer |
| CN109855740A (en) * | 2019-01-09 | 2019-06-07 | 桂林电子科技大学 | A kind of transformer fault online test method and system |
-
2020
- 2020-02-28 CN CN202010129203.6A patent/CN111238649A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198068A (en) * | 2013-12-05 | 2014-12-10 | 国家电网公司 | Temperature monitoring device and temperature monitoring method for winding of oil immersed transformer |
| CN205080995U (en) * | 2015-11-11 | 2016-03-09 | 刘云 | Novel oil -immersed transformer |
| CN207651328U (en) * | 2017-12-12 | 2018-07-24 | 华通机电股份有限公司 | A kind of oil-immersed transformer |
| CN109855740A (en) * | 2019-01-09 | 2019-06-07 | 桂林电子科技大学 | A kind of transformer fault online test method and system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678558A (en) * | 2020-07-31 | 2020-09-18 | 国网四川省电力公司成都供电公司 | Infrared thermal imaging oil level and temperature monitoring system and method applied to oil filling equipment |
| CN111735545A (en) * | 2020-08-18 | 2020-10-02 | 四川华东电气集团有限公司 | Transformer substation infrared thermal imaging online monitoring method and system |
| CN111735545B (en) * | 2020-08-18 | 2020-11-13 | 四川华东电气集团有限公司 | Transformer substation infrared thermal imaging online monitoring method and system |
| CN112284451A (en) * | 2020-10-22 | 2021-01-29 | 北方联合电力有限责任公司包头第二热电厂 | Intelligent detection system, device and method for thermal information value |
| CN113390461A (en) * | 2021-06-04 | 2021-09-14 | 广西电网有限责任公司北海供电局 | Transformer dynamic capacity increasing system based on transformer monitoring |
| CN113532753A (en) * | 2021-07-15 | 2021-10-22 | 西安华控智能系统工程有限公司 | Wind power plant gear box oil leakage detection method based on machine vision |
| CN113532753B (en) * | 2021-07-15 | 2024-02-20 | 宁夏龙源新能源有限公司 | Wind farm gear box oil leakage detection method based on machine vision |
| CN115219061A (en) * | 2022-09-13 | 2022-10-21 | 国网湖北省电力有限公司电力科学研究院 | Temperature monitoring method and system for on-load capacity and voltage regulating distribution transformer |
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Inventor after: Huang Rui Inventor after: Wang Li Inventor after: Yan Xiaoting Inventor after: Lv Juntao Inventor after: Ren Jingguo Inventor after: Wang Zhijie Inventor after: Guo Qijun Inventor after: Jia Bin Inventor after: Cheng Xu Inventor after: Li Yongsheng Inventor after: Niu Shuofeng Inventor before: Huang Rui Inventor before: Wang Li Inventor before: Yan Xiaoting Inventor before: Lv Juntao Inventor before: Ren Jingguo Inventor before: Wang Zhijie Inventor before: Guo Qijun Inventor before: Jia Bin Inventor before: Cheng Xu Inventor before: Li Yongsheng Inventor before: Niu Shuofeng |
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Application publication date: 20200605 |