CN111126193A - Artificial intelligence recognition system based on deep learning coal mine underground unsafe behavior - Google Patents

Artificial intelligence recognition system based on deep learning coal mine underground unsafe behavior Download PDF

Info

Publication number
CN111126193A
CN111126193A CN201911259677.6A CN201911259677A CN111126193A CN 111126193 A CN111126193 A CN 111126193A CN 201911259677 A CN201911259677 A CN 201911259677A CN 111126193 A CN111126193 A CN 111126193A
Authority
CN
China
Prior art keywords
unsafe
coal mine
training
control platform
nvr
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911259677.6A
Other languages
Chinese (zh)
Inventor
张柳
赵德伟
康亚伟
齐卫东
白文信
万召田
孟建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangzhuang Coal Mine Of Zaozhuang Mining Group Co ltd
Original Assignee
Jiangzhuang Coal Mine Of Zaozhuang Mining Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangzhuang Coal Mine Of Zaozhuang Mining Group Co ltd filed Critical Jiangzhuang Coal Mine Of Zaozhuang Mining Group Co ltd
Priority to CN201911259677.6A priority Critical patent/CN111126193A/en
Publication of CN111126193A publication Critical patent/CN111126193A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00Scenes; Scene-specific elements
    • G06V20/50Context or environment of the image
    • G06V20/52Surveillance or monitoring of activities, e.g. for recognising suspicious objects
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00Pattern recognition
    • G06F18/20Analysing
    • G06F18/24Classification techniques
    • G06F18/241Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/02Agriculture; Fishing; Mining
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources

Abstract

The invention discloses an artificial intelligence recognition system for underground unsafe behaviors of a coal mine based on deep learning, which comprises a mine field example material collection, a training data set, an AI training platform, an algorithm model, a control platform and the like, wherein the training data set generated by the mine field example material collection is loaded through the AI training platform based on the deep learning technology, the underground unsafe behaviors of the coal mine are trained, after an algorithm model is obtained, the algorithm model is directly led into an AI camera or NVR through the control platform, the AI camera or NVR identifies the trained unsafe behaviors through the artificial intelligence analysis of real-time video flow, the inference results are pushed to the control platform, the control platform pushes the unsafe information to an administrator, the unsafe information is audited and communicated with the field to confirm the unsafe behaviors, the unsafe behaviors are stopped and the control platform pushes the unsafe information to an unsafe place at the same time of the administrator, the scene is warned by sound and light; the accident is reduced, and the application range is wide.

Description

Artificial intelligence recognition system based on deep learning coal mine underground unsafe behavior
Technical Field
The invention relates to an artificial intelligence recognition system for underground unsafe behaviors of a coal mine based on deep learning, and belongs to the field of artificial intelligence.
Background
Most coal mines in China have the characteristics of complex geological conditions, high mining difficulty, multiple disaster types, wide distribution range and the like, and the hidden dangers of unsafe behaviors of people, unsafe states of objects and the like are numerous, so that coal mine safety production accidents happen occasionally, and human casualties are caused. As the coal mine has multiple points and wide links under the coal mine, a field security supervisor cannot meet the requirements and cannot stare at a certain place within 24 hours, the safety supervision blind points and risk points are multiple, and the coal mine safety management cost is increased.
Disclosure of Invention
The invention aims to provide an artificial intelligence recognition system for underground unsafe behaviors of a coal mine based on deep learning, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme: an artificial intelligence identification system based on deep learning coal mine underground unsafe behaviors comprises: mine site instance material collection (S1), training data sets (S2), AI training platform (S3), algorithm model (S4), control platform (S5), site acousto-optic warning (S6), AI camera/NVR (S7), unsafe behavior information auditing (S8) and communication (S9);
the method comprises the steps that an AI training platform (S3) is an artificial intelligence training platform based on deep learning, unsafe behaviors in a coal mine are collected through mine site example material collection (S1), a training data set (S2) is generated, the training data set is uploaded to the AI training platform (S3), the AI training platform (S3) carries out classification training on the unsafe behavior materials in the coal mine through loading the training data set (S2), and a coal mine unsafe algorithm model (S4) can be obtained through training and checking the unsafe materials in the coal mine;
the AI camera/NVR (S7), the scene acousto-optic warning (S6) and the unsafe behavior information auditing (S8) can be controlled through the control platform (S5), real-time video streams and videos of the AI camera/NVR (S7) can be read, and iterative training of the algorithm model can be realized through the control platform (S5).
As a further scheme of the invention, an underground coal mine unsafe algorithm model (S4) is obtained through an AI training platform (S3), and is led into an AI camera/NVR (S7) through a control platform (S5) or is directly led into the AI camera/NVR (S7), so that the AI camera/NVR (S7) has the capability of intelligently identifying the underground unsafe behavior of the trained coal mine.
As a further scheme of the invention, when the AI camera/NVR (S7) intelligently identifies the unsafe behavior of the underground coal mine to be trained, the control platform (S5) receives the inference result by pushing the inference result to the control platform (S5), the control platform (S5) pushes the unsafe information to the administrator for auditing the unsafe behavior information (S8), the administrator communicates with the site where the unsafe behavior occurs (S9) to ensure that the unsafe behavior is effectively prevented, the control platform pushes the unsafe behavior information to the administrator and simultaneously pushes the site acousto-optic warning (S6) to the site where the unsafe behavior occurs, and the site where the unsafe behavior occurs is warned by sound and light to achieve the purpose of preventing the unsafe behavior.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, based on the intelligent analysis requirement of unsafe behaviors of coal mine enterprises, an artificial intelligent identification system of unsafe behaviors of coal mine underground is constructed by utilizing an AI open platform based on deep learning, the unsafe behaviors of coal mine underground can be detected through video stream, and warning information is sent out, so that the dilemma encountered in the safety production management process of coal mine enterprises is solved, the safety management investment is reduced, the intelligent management level of safety production is improved, and finally the occurrence of accidents is reduced. Meanwhile, the invention can intelligently identify unsafe behaviors through video streaming, record the unsafe behaviors and warn the unsafe behaviors on site, and has wide application range.
Drawings
FIG. 1 is a schematic block diagram of the system of the present invention.
In the figure: s1, mine site example material collection, S2, a training data set, S3, an AI training platform, S4, an algorithm model, S5, a control platform, S6, site acousto-optic warning, S7, an AI camera/NVR, S8, unsafe behavior information auditing, S9 and communication.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely explained below with reference to the drawings in the embodiments of the present invention.
An artificial intelligence identification system based on deep learning coal mine underground unsafe behaviors comprises: mine site instance material collection (S1), training data sets (S2), AI training platform (S3), algorithm model (S4), control platform (S5), site acousto-optic warning (S6), AI camera/NVR (S7), unsafe behavior information auditing (S8) and communication (S9);
the method comprises the steps that an AI training platform (S3) is an artificial intelligence training platform based on deep learning, unsafe behaviors in a coal mine are collected through mine site example material collection (S1), a training data set (S2) is generated, the training data set is uploaded to the AI training platform (S3), the AI training platform (S3) carries out classification training on the unsafe behavior materials in the coal mine through loading the training data set (S2), and a coal mine unsafe algorithm model (S4) can be obtained through training and checking the unsafe materials in the coal mine;
the AI camera/NVR (S7), the scene acousto-optic warning (S6) and the unsafe behavior information auditing (S8) can be controlled through the control platform (S5), real-time video streams and videos of the AI camera/NVR (S7) can be read, and iterative training of the algorithm model can be realized through the control platform (S5).
And obtaining an underground coal mine unsafe algorithm model (S4) through an AI training platform (S3), and leading the model into an AI camera/NVR (S7) through a control platform (S5) or directly leading the model into the AI camera/NVR (S7), so that the AI camera/NVR (S7) has the capability of intelligently identifying the underground coal mine unsafe behavior trained.
When the AI camera/NVR (S7) intelligently identifies the unsafe behavior of the underground coal mine to be trained, the control platform (S5) pushes the reasoning result, the control platform (S5) receives the reasoning result, the unsafe information is pushed to the administrator to verify the unsafe behavior information (S8), the administrator communicates with the site where the unsafe behavior occurs (S9) to ensure that the unsafe behavior is effectively prevented, the control platform pushes the unsafe behavior information to the administrator and simultaneously pushes the site acousto-optic alarm (S6) to the site where the unsafe behavior occurs, and the site where the unsafe behavior occurs is warned by sound and light, so that the purpose of preventing the unsafe behavior is achieved.
The identification method of the invention comprises the following steps:
the method comprises the steps of material collection, unsafe behavior model training, unsafe behavior algorithm model loading and unsafe behavior identification.
1. Collecting materials;
the method comprises the steps of firstly determining underground unsafe behaviors of the coal mine, such as the underground coal mine without wearing safety helmets, mining lamps, dust masks, coats, rubber boots, safety belts, pedestrians during driving, off-duty monitoring of equipment operators and the like, and then collecting mine field example materials according to different underground unsafe behaviors of the coal mine to generate a training data set.
2. Training an unsafe behavior algorithm model;
firstly, loading a training data set on an AI training platform based on a deep learning technology, classifying different unsafe behaviors, and training an algorithm only aiming at a region by setting the region of interest. And through training and checking of the underground unsafe behavior materials of the coal mine, an underground unsafe behavior algorithm model of the coal mine can be generated.
3. Loading an unsafe behavior model;
and after the training of the unsafe behavior model is finished, generating an algorithm model through an AI training platform. The deployment and the task issuing of the algorithm model can be loaded to a front-end AI camera or NVR through a control platform, or can be directly loaded to the front-end AI camera or NVR, and the control platform carries out iterative training on the algorithm model so as to achieve the best effect.
4. Identification of unsafe behaviors;
the method comprises the steps that whether unsafe behaviors exist in a shot video is analyzed through a front-end AI camera or NVR loaded with an underground coal mine unsafe behavior algorithm model in an artificial intelligence mode, if the unsafe behaviors exist, an inference result is pushed to a control platform, the control platform pushes unsafe behavior information to an administrator, the administrator is in communication with the site where the unsafe behaviors occur, the unsafe behaviors are effectively prevented, the control platform pushes the unsafe behavior information to the administrator, meanwhile, according to equipment correlation information, warning information is pushed to an audible and visual alarm of the site where the unsafe behaviors occur, and audible and visual warning of the unsafe behaviors is conducted on site.
The working principle of the invention is as follows: the method is suitable for artificial intelligence recognition of unsafe behaviors of coal mines, and comprises the steps of training the unsafe behaviors of the coal mines through an AI training platform based on a deep learning technology, obtaining an algorithm model, leading the algorithm model into an AI camera or NVR, and recognizing the trained unsafe behaviors through artificial intelligence analysis of real-time video streams by the AI camera or NVR, pushing reasoning results to a control platform, pushing unsafe behavior information to an administrator by the control platform, carrying out information verification and communication confirmation on the unsafe behavior information, and pushing information to the unsafe behavior occurrence places to prompt scene acousto-optic warning.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.

Claims (3)

1. The utility model provides a colliery is unsafe behavior artificial intelligence identification system in pit based on deep learning which characterized in that includes: mine site instance material collection (S1), training data sets (S2), AI training platform (S3), algorithm model (S4), control platform (S5), site acousto-optic warning (S6), AI camera/NVR (S7), unsafe behavior information auditing (S8) and communication (S9);
the method comprises the steps that an AI training platform (S3) is an artificial intelligence training platform based on deep learning, unsafe behaviors in a coal mine are collected through mine site example material collection (S1), a training data set (S2) is generated, the training data set is uploaded to the AI training platform (S3), the AI training platform (S3) carries out classification training on the unsafe behavior materials in the coal mine through loading the training data set (S2), and a coal mine unsafe algorithm model (S4) can be obtained through training and checking the unsafe materials in the coal mine;
the AI camera/NVR (S7), the scene acousto-optic warning (S6) and the unsafe behavior information auditing (S8) can be controlled through the control platform (S5), real-time video streams and videos of the AI camera/NVR (S7) can be read, and iterative training of the algorithm model can be realized through the control platform (S5).
2. The artificial intelligence recognition system based on deep learning coal mine underground unsafe behavior as claimed in claim 1, wherein an underground coal mine unsafe algorithm model (S4) is obtained through an AI training platform (S3), and is led into an AI camera/NVR (S7) through a control platform (S5) or is directly led into the AI camera/NVR (S7), so that the AI camera/NVR (S7) has the ability of intelligently recognizing the underground unsafe behavior of the trained coal mine.
3. The artificial intelligence recognition system for the underground unsafe behaviors of the coal mine based on deep learning of the claim 1 is characterized in that when an AI camera/NVR (S7) intelligently recognizes the underground unsafe behaviors of the trained coal mine, the control platform (S5) pushes reasoning results to a control platform (S5) and receives the reasoning results, unsafe information is pushed to an administrator for auditing the unsafe behavior information (S8), the administrator communicates with the site where the unsafe behaviors occur (S9) to ensure that the unsafe behaviors are effectively stopped, the control platform pushes a site acousto-optic alarm (S6) to the site where the unsafe behaviors occur while pushing the unsafe behavior information to the administrator, and the site where the unsafe behaviors occur is warned through sound and light to stop the unsafe behaviors.
CN201911259677.6A 2019-12-10 2019-12-10 Artificial intelligence recognition system based on deep learning coal mine underground unsafe behavior Pending CN111126193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911259677.6A CN111126193A (en) 2019-12-10 2019-12-10 Artificial intelligence recognition system based on deep learning coal mine underground unsafe behavior

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911259677.6A CN111126193A (en) 2019-12-10 2019-12-10 Artificial intelligence recognition system based on deep learning coal mine underground unsafe behavior

Publications (1)

Publication Number Publication Date
CN111126193A true CN111126193A (en) 2020-05-08

Family

ID=70498148

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911259677.6A Pending CN111126193A (en) 2019-12-10 2019-12-10 Artificial intelligence recognition system based on deep learning coal mine underground unsafe behavior

Country Status (1)

Country Link
CN (1) CN111126193A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111783575A (en) * 2020-06-18 2020-10-16 合肥恒翔电子科技有限公司 Underground artificial intelligence video drilling system
CN112836648A (en) * 2021-02-05 2021-05-25 湖南嘿哈猫网络科技有限公司 User behavior analysis model construction and system application based on deep learning
CN113179386A (en) * 2021-03-19 2021-07-27 江西铜业股份有限公司 Mining area safety intelligent monitoring broadcasting system and intelligent broadcasting method thereof
CN113763659A (en) * 2021-09-08 2021-12-07 山西华拓电气有限公司 Mine area personnel invasion monitoring system based on visual identification
CN114666553A (en) * 2022-05-18 2022-06-24 深圳酷源数联科技有限公司 Coal mine underground large-visual-angle security monitoring system
CN115146903A (en) * 2022-05-09 2022-10-04 中国中煤能源集团有限公司 Coal mine unsafe behavior recognition early warning system based on key skeleton points
CN116030391A (en) * 2023-01-06 2023-04-28 滨州邦维信息科技有限公司 Intelligent monitoring method for personnel risk of coal discharge port

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244188A (en) * 2013-05-14 2013-08-14 太原科技大学 Coal mine underground integrated monitoring and controlling system based on internet of things technology
CN105678631A (en) * 2016-03-03 2016-06-15 焦庆国 Anti-error-identification intelligent tracking management system and method for coal mine
US20180266233A1 (en) * 2017-03-17 2018-09-20 Chevron U.S.A. Inc. Method and System for Automated Well Event Detection and Response
CN108668109A (en) * 2018-02-14 2018-10-16 北京广天夏科技有限公司 Image monitoring method based on computer vision
CN108846585A (en) * 2018-06-25 2018-11-20 西安科技大学 A kind of hidden danger of coal mine processing management system
CN109188550A (en) * 2018-08-30 2019-01-11 山西精英科技股份有限公司 A kind of belt conveyor foreign matter detection system
CN109376673A (en) * 2018-10-31 2019-02-22 南京工业大学 A kind of coal mine down-hole personnel unsafe acts recognition methods based on human body attitude estimation
CN208820933U (en) * 2018-09-27 2019-05-03 精英数智科技股份有限公司 A kind of Network Video Surveillance video camera of underground coal mine
CN110206588A (en) * 2019-05-29 2019-09-06 武汉理工大学 Underground mine safety management system for worker
CN110425005A (en) * 2019-06-21 2019-11-08 中国矿业大学 The monitoring of transportation of belt below mine personnel's human-computer interaction behavior safety and method for early warning

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244188A (en) * 2013-05-14 2013-08-14 太原科技大学 Coal mine underground integrated monitoring and controlling system based on internet of things technology
CN105678631A (en) * 2016-03-03 2016-06-15 焦庆国 Anti-error-identification intelligent tracking management system and method for coal mine
US20180266233A1 (en) * 2017-03-17 2018-09-20 Chevron U.S.A. Inc. Method and System for Automated Well Event Detection and Response
CN108668109A (en) * 2018-02-14 2018-10-16 北京广天夏科技有限公司 Image monitoring method based on computer vision
CN108846585A (en) * 2018-06-25 2018-11-20 西安科技大学 A kind of hidden danger of coal mine processing management system
CN109188550A (en) * 2018-08-30 2019-01-11 山西精英科技股份有限公司 A kind of belt conveyor foreign matter detection system
CN208820933U (en) * 2018-09-27 2019-05-03 精英数智科技股份有限公司 A kind of Network Video Surveillance video camera of underground coal mine
CN109376673A (en) * 2018-10-31 2019-02-22 南京工业大学 A kind of coal mine down-hole personnel unsafe acts recognition methods based on human body attitude estimation
CN110206588A (en) * 2019-05-29 2019-09-06 武汉理工大学 Underground mine safety management system for worker
CN110425005A (en) * 2019-06-21 2019-11-08 中国矿业大学 The monitoring of transportation of belt below mine personnel's human-computer interaction behavior safety and method for early warning

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111783575A (en) * 2020-06-18 2020-10-16 合肥恒翔电子科技有限公司 Underground artificial intelligence video drilling system
CN112836648A (en) * 2021-02-05 2021-05-25 湖南嘿哈猫网络科技有限公司 User behavior analysis model construction and system application based on deep learning
CN113179386A (en) * 2021-03-19 2021-07-27 江西铜业股份有限公司 Mining area safety intelligent monitoring broadcasting system and intelligent broadcasting method thereof
CN113763659A (en) * 2021-09-08 2021-12-07 山西华拓电气有限公司 Mine area personnel invasion monitoring system based on visual identification
CN115146903A (en) * 2022-05-09 2022-10-04 中国中煤能源集团有限公司 Coal mine unsafe behavior recognition early warning system based on key skeleton points
CN114666553A (en) * 2022-05-18 2022-06-24 深圳酷源数联科技有限公司 Coal mine underground large-visual-angle security monitoring system
CN116030391A (en) * 2023-01-06 2023-04-28 滨州邦维信息科技有限公司 Intelligent monitoring method for personnel risk of coal discharge port

Similar Documents

Publication Publication Date Title
CN111126193A (en) Artificial intelligence recognition system based on deep learning coal mine underground unsafe behavior
CN110674702B (en) Mine image scene classification method, device, equipment and system
CN114673558B (en) Coal mine driving face risk identification and intelligent pre-control system and method
CN106355162A (en) Method for detecting intrusion on basis of video monitoring
CN110801593B (en) Extremely early fire early warning system and method fusing multi-mode data
CN111277748A (en) Construction site fire management system based on video intelligent analysis and implementation method thereof
CN111523397A (en) Intelligent lamp pole visual identification device, method and system and electronic equipment
CN210110004U (en) Oil field behavior monitoring system based on artificial intelligence
CN111126192A (en) Underground coal mine object state recognition system based on deep learning
CN112541439A (en) Intelligent video monitoring method and system for power plant
CN106295470A (en) A kind of bank self-help service area early-warning monitoring method, Apparatus and system
CN111179551A (en) Real-time monitoring method for dangerous chemical transport driver
CN110119655A (en) A kind of petroleum chemical enterprise's on-site Vehicle And Personnel assembles early warning system and method for early warning
CN106761928A (en) The collecting method and device of a kind of coal mine safety monitoring system
CN203327163U (en) Monitoring system
CN112613449A (en) Safety helmet wearing detection and identification method and system based on video face image
CN114333273A (en) Intelligent analysis system and method for nuclear power construction site
CN113344882A (en) Method for counting drill rods of underground drilling machine based on computer vision
CN106781195A (en) A kind of coal-mine fire smoke detection system
CN106341658A (en) Intelligent city security state monitoring system
CN109873990A (en) A kind of illegal mining method for early warning in mine based on computer vision
CN105741503A (en) Parking lot real time early warning method under present monitoring device
CN115019259A (en) AI image recognition supervision method and system for intelligent mine
CN202904792U (en) Intelligent visualized alarm system
CN113256560A (en) Heading machine nose area intrusion detection method based on YOLOv5

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information

Inventor after: Zhou Zhongping

Inventor after: Su Shiqing

Inventor after: Li Yongchao

Inventor after: Zhang Liu

Inventor after: Zhao Dewei

Inventor after: Kang Yawei

Inventor after: Qi Weidong

Inventor after: Bai Wenxin

Inventor after: Wan Zhaotian

Inventor after: Meng Jian

Inventor before: Zhang Liu

Inventor before: Zhao Dewei

Inventor before: Kang Yawei

Inventor before: Qi Weidong

Inventor before: Bai Wenxin

Inventor before: Wan Zhaotian

Inventor before: Meng Jian

CB03 Change of inventor or designer information