CN113223279A - Intelligent mine hazard source dynamic identification and mutual inductance early warning management and control platform - Google Patents
Intelligent mine hazard source dynamic identification and mutual inductance early warning management and control platform Download PDFInfo
- Publication number
- CN113223279A CN113223279A CN202110525543.5A CN202110525543A CN113223279A CN 113223279 A CN113223279 A CN 113223279A CN 202110525543 A CN202110525543 A CN 202110525543A CN 113223279 A CN113223279 A CN 113223279A
- Authority
- CN
- China
- Prior art keywords
- safety
- early warning
- mine
- management
- mutual inductance
- 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
Links
- 238000005516 engineering process Methods 0.000 claims abstract description 9
- 238000007726 management method Methods 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims 1
- 238000005065 mining Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000003137 locomotive effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling 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
- G08B7/06—Signalling 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/0969—Systems involving transmission of navigation instructions to the vehicle having a display in the form of a map
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
- G08G1/133—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams within the vehicle ; Indicators inside the vehicles or at stops
- G08G1/137—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams within the vehicle ; Indicators inside the vehicles or at stops the indicator being in the form of a map
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The intelligent mine dangerous source dynamic identification and mutual inductance early warning platform based on the Internet of things is developed aiming at the safety management problem in the strip mine mining process and the defects of the existing information system. The time-space relation among man-machine-ring in the mine is enhanced, dynamic conversion and real-time grading early warning of roles between a hazard source and a protected object are formed, and meanwhile, a complete mine intelligent safety management closed-loop system is formed from two levels of technology and a management system by matching with a safety integral management system.
Description
Technical Field
The invention relates to the field of mining safety management, in particular to a method, a device and a platform for managing and controlling safety risks of a mine construction site.
Background
The production system of the surface mine is complex, the dangerous sources are numerous, and particularly, the time-space dynamic change relationship exists between the dangerous sources and objects such as personnel, ultra-large mine vehicles, high and steep slopes and the like, so that safety accidents such as vehicle collision, vehicle slope turning and the like are easy to happen in operation sites such as a refuse dump and the like. The development of a platform which can realize real-time dynamic mutual inductance early warning among multiple dangerous sources and realize centralized control of each mine object in a dispatching center in a time-sharing and quasi-dynamic manner is urgently needed.
The intelligent mine construction in China has been achieved for the first time, for example, 5G + mining application is developed for the company in the United nations of Jiangxi city, Menshan copper mine, and the functions of intelligent driving of mine cars, remote control of bulldozers and the like are realized, and meanwhile, students at home and abroad also propose a plurality of intelligent mine construction frameworks. However, most of the existing research and application uses a scheduling center as an intelligent core, and each intelligent terminal is communicated through a wireless network, so that the stability and flexible capacity expansion of the system are highly dependent on the scheduling center and the network, once the network or the scheduling center has a problem, intelligent linkage cannot be realized among all intelligent units, and meanwhile, all decisions are limited to the scheduling center, which will cause delay of information transmission, and actual requirements of mine safety state instantaneous change cannot be met.
In the existing field safety control system, for example, a Zhangzhong scholars utilize an RFID radio frequency technology to realize underground man-vehicle tracking and carry out safety management; the chenchencheng snowboarder utilizes radio frequency to monitor and locate personnel information in real time. However, most of the existing research operation permission handing-over is paper record, the electronic information voucher is fragmented, personnel, equipment and the environment lack danger sources to be automatically identified, the working efficiency is low, and the information transmission is not smooth.
There is a need for a novel field safety management and control system which can solve the above problems.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a control platform for dynamic identification and mutual inductance early warning of a dangerous source, which is an intelligent safety control platform for constructing human, machine and object cooperation, operation execution cooperation, safe and reliable operation, effective supervision of a process and information sharing.
In order to achieve the purpose, the invention is realized by adopting the following technologies:
because the danger source and the protected object in the mining area are dynamically changeable, a dynamically traceable danger source data system is established, the radio frequency card and the reader hardware resources which are distributed all over the mine are fully utilized, and the graphical display function of the time-sharing positioning information of the personnel and the mobile equipment in the mining area can be realized according to the information uploaded by the mobile reader.
The dynamic identification of the danger source is to adopt the RFID radio frequency technology to carry out coding identification on personnel, equipment, danger boundaries, important places and the like, automatically measure the distance between the danger source and identify the identity of the danger source, intelligently decide the grading early warning level, and send out corresponding wireless instructions, so that the electronic chest card worn by construction personnel in a danger range can generate corresponding early warning signals in the forms of sound, light, vibration and the like.
While ensuring personnel identification and monitoring functions of radio frequency cards, display screens, buttons and voice prompting functions have been added to radio frequency cards as part of human-computer interaction. And after receiving the data command, the radio frequency card outputs and displays specific command content so as to realize personnel management and scheduling or emergency evacuation. Meanwhile, the operator can report related work or accidents through the display screen and the buttons. As data transmission, the card reader not only has the functions of radio frequency communication and CAN communication, but also is added with the functions of real-time clock, data storage and the like to record important events.
In the mine locomotive monitoring system, the management information of the locomotive can be summarized into a vehicle type, a shift number, an electric locomotive ID number, a vehicle load, a passenger information, a vehicle running track and the like. Besides the local identification of the information is realized by an RFID technical means, the information is uploaded to a data server for storage and displayed on a monitoring interface in real time through a network.
The locomotive monitoring system is applied to a high-precision vehicle-mounted remote radio frequency reader, is installed in an ultra-large mining vehicle, a movable mechanical device or an important safety area, realizes scanning and reading of peripheral radio frequency cards and electronic chest cards, performs graphic visual display on scanned identity and position information, has the functions of information storage, instruction sending and remote information transmission, designs and develops a graphic display radio frequency navigation interface at a vehicle-mounted reader terminal, friendly displays the peripheral electronic boundary of the mobile device, and provides safety early warning navigation information for drivers according to the relative distance, direction and other information of personnel or other devices;
the low-cost RFID positioning piles are arranged on the boundary of the road and the dangerous slope, and provide boundary navigation electronic information for vehicles and movable equipment with readers. And (4) making an accurate early warning rule and developing an intelligent early warning pre-control decision system.
Drawings
FIG. 1 is a block diagram of a platform logic structure according to the present invention.
Fig. 2 is a schematic diagram of the intelligent mutual inductance technology of the mine area danger source.
Fig. 3 is a schematic diagram of the apparatus for carrying the RFID rf card according to the present invention.
Fig. 4 is a schematic diagram of the operation of the RFID system described in the present invention.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1, the intelligent mine hazard source dynamic identification and mutual inductance early warning management and control platform is characterized by comprising the following steps:
step one, establishing a dynamically traceable danger source data system, fully utilizing radio frequency cards and reader hardware resources which are distributed all over the mine, and carrying out RFID radio frequency card code identification on personnel, equipment, danger boundaries, important places and the like.
And step two, automatically measuring the distance between the electronic chest card and a dangerous source, identifying the identity of the dangerous source, intelligently deciding the grading early warning level, and sending a corresponding wireless instruction, so that the electronic chest card worn by construction personnel in a dangerous range can generate corresponding early warning signals in the forms of sound, light, vibration and the like.
And step three, designing and developing a radio frequency navigation interface displayed in a graphic mode on the vehicle-mounted reader terminal, friendly displaying information such as electronic boundaries around the mobile equipment, relative distances and directions of personnel or other equipment and the like, and providing safety early warning navigation information for drivers.
And step four, information storage and time-sharing transmission functions, wherein the vehicle-mounted reader realizes the functions of storage and timed uploading of the scanning information and reserves the electronic certificate for subsequent security management.
As shown in fig. 2, all engineering vehicles, personnel, dangerous slopes, houses and the like can realize identity recognition, and the dynamic mutual inductance recognition relation between the movable object and the dangerous source is established in real time, so that the all-weather grading early warning function is realized.
The technology of applying the RFID technology to a positioning and tracking system of a mine locomotive is basically formed. The label reader-writer and the communication equipment are arranged on the vehicle and connected to the vehicle-mounted microcomputer in parallel. The system consists of a ground beacon, a mobile beacon reader, wireless data transmission, visual scheduling, wireless talkback, acousto-optic alarm and the like.
In the system, if the engineering vehicle is too close to a person, the locomotive is displayed in red, sound alarm is allowed, vibration and alarm sound are simultaneously sent out, and automatic emergency stop is made. The administrator divides the danger zone into 3 grades, a green safety zone, a yellow warning zone and a red danger zone, and performs corresponding 'sound-light-earthquake' alarm reminding on personnel entering the zone respectively, and also establishes a corresponding punishment mechanism to perform corresponding punishment and safety education on illegal personnel.
As shown in fig. 3, all constructors entering the range of the management and control platform must wear the electronic chest cards and safety helmets with their own independent tags.
Further, all constructors strictly require the safety management system of the management and control platform, and the carried RFID equipment is high in reliability, low in power consumption and high in safety.
As shown in fig. 4, the RFID technology can identify an object moving at a high speed, and can simultaneously identify a plurality of electronic tags, and is fast and convenient to operate. Short-distance radio frequency products are not afraid of severe environments such as oil stain and dust pollution, and can replace bar codes in the environments.
The reader can read and identify the electronic data stored in the electronic tag without contact, thereby achieving the purpose of automatically identifying the object. The reader sends out radio frequency signals with certain frequency through the antenna. When the tag enters the magnetic field, it will generate an induced current to acquire energy, send its own code and other information, which will be read and decoded by the reader, and then sent to the host for relevant processing. In the electromagnetic field system, the reader emits electromagnetic waves, which propagate forward as spherical waves, and the electronic tag is immersed in the electromagnetic waves and collects some energy from the electromagnetic waves. At any point, the available energy is related to the distance from that point to the transmitter. As can be seen from the above, the reader must generate a suitable energy field within a readable distance to excite the electronic tag.
Further, after the electronic tag enters the magnetic field of the antenna, if a special radio frequency signal is received from the reader, it can use the energy obtained by the induced current to transmit the product information stored in the chip (passive tag), or actively transmit a specific frequency reader to read and decode the information, and then transmit the information to a central information system for related data processing.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (6)
1. An intelligent mine hazard source dynamic identification and mutual inductance early warning management and control platform comprises an intelligent safety management and control platform, a dynamic mutual inductance safety early warning system and a safety management closed-loop system.
2. The intelligent security management and control platform according to claim 1, wherein the platform fully utilizes radio frequency cards and reader hardware resources distributed throughout the mine to obtain information uploaded by a mobile reader, and a graphical display function of time-sharing positioning information of personnel and mobile devices in a mine area is achieved.
3. The intelligent security management and control platform according to claim 2, wherein the platform makes a reasonable regional and hierarchical security management system according to the historical track data analysis of production processes, personnel and vehicles, thereby forming a quasi-static positioning and intelligent security management system in a dispatching center.
4. The dynamic mutual inductance safety early warning system according to claim 1, wherein the system adopts RFID automatic identification technology to develop a light and small integrated acoustic-optical-vibration electronic chest card, a high-precision vehicle-mounted radio frequency reader and a low-cost RFID positioning pile, and the system can be used for coding and identifying personnel, equipment, dangerous boundaries, important places and the like to form an electronic identification basic hardware system of all mine production elements.
5. The dynamic mutual inductance safety pre-warning system according to claim 4, wherein the system automatically measures the distance between the system and a dangerous source and identifies the identity of the dangerous source, intelligently decides the grading pre-warning level, and can send out corresponding wireless instructions, so that constructors or construction vehicles in a dangerous range can receive corresponding pre-warning signals in the forms of sound, light, vibration and the like.
6. The safety management closed-loop system according to claim 1, wherein the system is used for formulating an accurate early warning rule, the vehicle-mounted reader realizes functions of storing and uploading scanned information at regular time, and the system is matched with a safety point management system to perform functions of information storage and time-sharing transmission, so as to reserve an electronic certificate for subsequent safety management.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110525543.5A CN113223279A (en) | 2021-05-14 | 2021-05-14 | Intelligent mine hazard source dynamic identification and mutual inductance early warning management and control platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110525543.5A CN113223279A (en) | 2021-05-14 | 2021-05-14 | Intelligent mine hazard source dynamic identification and mutual inductance early warning management and control platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113223279A true CN113223279A (en) | 2021-08-06 |
Family
ID=77095749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110525543.5A Pending CN113223279A (en) | 2021-05-14 | 2021-05-14 | Intelligent mine hazard source dynamic identification and mutual inductance early warning management and control platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113223279A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113808347A (en) * | 2021-08-13 | 2021-12-17 | 新疆雪峰科技(集团)股份有限公司 | Method and device for forming dynamic electronic fence and vehicle operation control method |
| CN113936501A (en) * | 2021-10-12 | 2022-01-14 | 青岛科技大学 | Intelligent crossing traffic early warning system based on target detection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291358A (en) * | 2012-02-24 | 2013-09-11 | 永城煤电控股集团有限公司 | Intelligent safety management system based on RFID (radio frequency identification) for coal production |
| CN103523055A (en) * | 2013-09-23 | 2014-01-22 | 华中科技大学 | Large gradient shield tunnel inner transport cart anti-collision pre-warning system and working method thereof |
| CN104766190A (en) * | 2014-01-08 | 2015-07-08 | 常州高特电子技术有限公司 | Mining underground logistics management system and method based on RFID technology |
| CN105303345A (en) * | 2015-10-20 | 2016-02-03 | 南京邮电大学 | RFID based fork truck anti-collision system and method |
| CN108757040A (en) * | 2018-05-31 | 2018-11-06 | 安徽理工大学 | A kind of mine safety monitoring system |
-
2021
- 2021-05-14 CN CN202110525543.5A patent/CN113223279A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291358A (en) * | 2012-02-24 | 2013-09-11 | 永城煤电控股集团有限公司 | Intelligent safety management system based on RFID (radio frequency identification) for coal production |
| CN103523055A (en) * | 2013-09-23 | 2014-01-22 | 华中科技大学 | Large gradient shield tunnel inner transport cart anti-collision pre-warning system and working method thereof |
| CN104766190A (en) * | 2014-01-08 | 2015-07-08 | 常州高特电子技术有限公司 | Mining underground logistics management system and method based on RFID technology |
| CN105303345A (en) * | 2015-10-20 | 2016-02-03 | 南京邮电大学 | RFID based fork truck anti-collision system and method |
| CN108757040A (en) * | 2018-05-31 | 2018-11-06 | 安徽理工大学 | A kind of mine safety monitoring system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113808347A (en) * | 2021-08-13 | 2021-12-17 | 新疆雪峰科技(集团)股份有限公司 | Method and device for forming dynamic electronic fence and vehicle operation control method |
| CN113808347B (en) * | 2021-08-13 | 2022-12-30 | 新疆雪峰科技(集团)股份有限公司 | Method and device for forming dynamic electronic fence and vehicle operation control method |
| CN113936501A (en) * | 2021-10-12 | 2022-01-14 | 青岛科技大学 | Intelligent crossing traffic early warning system based on target detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104260762B (en) | Mine locomotive accurate positioning method and device | |
| CN105346566B (en) | Bullet train is run close to early warning system and its implementation | |
| CN113223279A (en) | Intelligent mine hazard source dynamic identification and mutual inductance early warning management and control platform | |
| CN105303890A (en) | Intelligent early warning method for surrounding vehicle with abnormal driving state | |
| Zhong et al. | Internet of things for high-speed railways | |
| CN104715597B (en) | High speed rail earthquake data information acquisition and method for early warning and system | |
| CN102523621A (en) | System and method for positioning underground personnel | |
| CN113888140B (en) | Mine auxiliary transportation intelligent management platform based on RFID technology | |
| CN101020465A (en) | Reorganizing and outfitting operation method and safety system for locomotive warehouse | |
| CN103455893A (en) | Intelligent mine underground personnel location and on-line monitoring and command system | |
| CN101848419A (en) | Positioning and tracking system of underground/roadway moving object | |
| Ting et al. | A study on RFID adoption for vehicle tracking in container terminal | |
| CN102201075A (en) | Mineral logistic comprehensive management system | |
| CN108932819A (en) | A kind of subway seismic data information collection and method for early warning and system | |
| CN103029726A (en) | Precise positioning and anti-collision system of mine locomotive | |
| CN107330484A (en) | A kind of automatic tracing-positioning system of mine haulage vehicle | |
| CN201820353U (en) | Freeway vehicle monitoring system based on RFID (radio frequency identification device) | |
| CN103323813A (en) | Positioning system and positioning method of mine locomotive beacon | |
| CN105280010A (en) | Traffic safety management method using road-side relay to intelligently track vehicle | |
| CN111510855B (en) | Coal mine underground vehicle manned positioning leakage-proof identification system and method | |
| CN205003852U (en) | Highway dangerization article vehicle trail management early warning system | |
| CN104724143B (en) | High-speed railway beam wind information gathering and method for early warning and system | |
| CN102387350A (en) | Wireless monitoring positioning system for tunnel | |
| CN105303209A (en) | System for vehicle-mounted RFID information data relay transmission | |
| CN202544928U (en) | Position monitoring and management system of underground staffs |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210806 |
|
| WD01 | Invention patent application deemed withdrawn after publication |