CN107762558A - Mine gas explosion the condition of a disaster intelligent detecting system and detection method - Google Patents
Mine gas explosion the condition of a disaster intelligent detecting system and detection method Download PDFInfo
- Publication number
- CN107762558A CN107762558A CN201711094492.5A CN201711094492A CN107762558A CN 107762558 A CN107762558 A CN 107762558A CN 201711094492 A CN201711094492 A CN 201711094492A CN 107762558 A CN107762558 A CN 107762558A
- Authority
- CN
- China
- Prior art keywords
- airborne
- intelligent
- condition
- sensor
- disaster
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Abstract
Mine gas explosion the condition of a disaster intelligent detecting system and detection method, including unmanned aerial vehicle ground control system, Intelligent unattended machine, independent wireless signal relay, airborne gas sensor, airborne pressure sensor, airborne temperature sensor, airborne dust sensor, airborne high-definition camera system, airborne IR imaging system, airborne lidar instrument, onboard high-speed wireless transmitting system.The system can by the methane gas concentration of underground coal mine after the airborne equipment automatic data collection gas explosion of Intelligent unattended machine, pressure, temperature, dust content, underground live view, and the data that these are collected are automatically transferred to unmanned aerial vehicle ground control system via multiple independent wireless signal relays by onboard high-speed wireless transmitting system and institute's gathered data is analyzed, optimal time and the route of going into the well of going into the well of the optimal escape route of trapped personnel and wrecking company 5 is determined according to the result analyzed.
Description
Technical field
The invention belongs to safety of coal mines and intelligent disaster relief technical field, and in particular to a kind of mine gas explosion the condition of a disaster intelligence
Detection system and detection method.
Background technology
The consequence that mine gas explosion is brought in mine disaster accident is the most serious, caused by casualties number most
More, economic loss is maximum.HTHP caused by mine gas explosion, promote the gas near quick-fried source outside with great speed
Impact, cause casualties, destroy tunnel and equipment facility, kick up a large amount of coal dusts and be allowed to participate in blast, produce bigger break
Bad power.In addition, generating substantial amounts of pernicious gas after blast, personnel are caused to be poisoned to death.Mine gas explosion accident has serious
Property, instantaneous, paroxysmal feature.The strong shock wave brought after gas explosion almost destroys setting for all of underground coal mine
Apply, at the same smog caused by exploding reduce tunnel visibility and blast after oxygen content and gas density in mine
Uncertainty, the pressure and temperature situation in tunnel can not detect in time, so that rescue team can not understand coal in time
Concrete condition under mine, dare not go into the well rescue easily.This all to down-hole trapped personnel rescue bring very big difficulty and
It is unfavorable.Rescue work is not only resulted in make slow progress, and is delayed the valuable life span of underground disaster affected people, is reduced survival rate, even
To going into the well, rescue personnel damages, and produces second accident, significantly reduces rescue efficiency, adds personnel and property damage
Lose.Therefore during coal production, gas explosion field condition can promptly and accurately be understood, turns into and restrict colliery energy
An important factor for no progress timely safe rescue.Based on problem above, mine watt can promptly and accurately be gathered by needing research and development one kind badly
Blast the condition of a disaster is live for this, analyze accident conditions and determines the condition of a disaster intelligent detecting system rescued the best opportunity and instruct rescue.
The content of the invention
It is an object of the invention to provide a kind of mine gas explosion the condition of a disaster intelligent detecting system and detection method, solves colliery
After gas explosion accident occurs, because rescue personnel is difficult in time to understand or understand not accurate enough to underground the condition of a disaster, cause to rescue
Work progress is slow, delays the problem of underground rescue Best Times.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
Mine gas explosion the condition of a disaster intelligent detecting system, including unmanned aerial vehicle ground control system, Intelligent unattended machine, independent wireless communication
Number relay, airborne gas sensor, airborne pressure sensor, airborne temperature sensor, airborne dust sensor, machine
Carry high-definition camera system, airborne IR imaging system, airborne lidar instrument, onboard high-speed wireless transmitting system.Described nothing
Man-machine ground control system controls Intelligent unattended machine by wireless transmitting system；Described independent wireless signal relay is used for
The reception and transmission of signal between unmanned aerial vehicle ground control system and Intelligent unattended machine；Described Intelligent unattended machine carries airborne watt
This gas sensor, airborne pressure sensor, airborne temperature sensor, airborne dust sensor, airborne high-definition camera system, machine
Carry infrared imaging system, airborne lidar instrument and onboard high-speed wireless transmitting system.
Mine gas explosion the condition of a disaster intelligent detecting system, described unmanned aerial vehicle ground control system operate including Intelligent flight
Module, wireless signal transmission receiving module, data processing module, image display；Intelligent flight operation module passes through transmitting
Wireless signal controls the flight of Intelligent unattended machine；Wireless signal transmission receiving module is controlled the output of signal and unmanned plane passes
The reception of defeated signal；Data processing module includes database subsystem module and processing submodule, underground of the processing submodule to reception
Volume of data carries out Treatment Analysis and obtained a result, and it is compared with database subsystem module, it is determined that now downhole safety
Situation；Image display is used for showing the video pictures that Intelligent unattended machine airborne equipment transmits.
Mine gas explosion the condition of a disaster intelligent detecting system, described airborne gas sensor are used for detecting fire damp
Concentration, airborne pressure sensor are used for gas pressure under detecting shaft, and airborne temperature sensor is used for detecting downhole temperature, airborne powder
Dust sensor is used for dust concentration under detecting shaft.
Mine gas explosion the condition of a disaster intelligent detecting system, described airborne high-definition camera system, airborne IR imaging system
It is imaged with airborne lidar instrument for lane space.
Mine gas explosion the condition of a disaster intelligent detecting system, described onboard high-speed wireless transmitting system are used to airborne set each
The standby downhole data gathered is sent to the data processing module of unmanned aerial vehicle ground control system.
The detection method of mine gas explosion the condition of a disaster intelligent detecting system, using mine gas as claimed in claim 1
Blast the condition of a disaster intelligent detecting system, comprises the following steps：
（1）Into visual intelligent report control platform, start Intelligent unattended machine, system carries out every airborne equipment debugging mode automatically
And the debugging of each module, failure alarm signal is automatically generated if there is problem in debugging process；
（2）When confirming airborne equipment and normal each module, Intelligent unattended machine sets out, and goes to accident well head, along pit shaft by certainly
Dynamic navigation system navigation is quick to reach underground, after reaching underground, activates each airborne equipment, proceeds by detection and information passes
It is defeated；
（3）Intelligent unattended machine corresponds to one piece of independent wireless signal relay of down well placement throwing in well head, straight in tunnel afterwards
Line segment corner and has signal to obstruct position every 150 ~ 200 m throwings, one piece of independent wireless signal relay, in tunnel
Every 100 ~ 150 m throwings, one piece of independent wireless signal relay, all independent wireless signal relays are cast out certainly
Start；
（4）Intelligent unattended machine advances to blast area, and it is dense to detect the pressure under mine, temperature, gas using each airborne equipment
Spend, dust concentration, while the live view of underground is transferred to the image display on ground by airborne high-definition camera system；
（5）The downhole data that each airborne equipment is gathered is sent to unmanned aerial vehicle ground control system by wireless transmitting system
Data processing module；
（6）Each data of receiving are handled by data processing module and are compared with database, by final data
Shown by image display, so as to judge the environment after fire damp blast, it is determined that optimal rescue time, rescue road
Line and rescue mode；
（7）After a detection mission is completed, maked a return voyage automatically under conditions of ensureing that electricity can make a return voyage to ground；
（8）When carrying out second of detection mission, repeat step（1）、（2）、（3）、（4）、（5）、（6）、（7）.
Brief description of the drawings
If Fig. 1 is mine gas explosion the condition of a disaster intelligent detecting system of the present invention；
If Fig. 2 is unmanned aerial vehicle control system workflow diagram in ground of the present invention；
If Fig. 3 is wireless transmitting system workflow diagram of the present invention.
Embodiment
As shown in FIG. 1 to 3, mine gas explosion the condition of a disaster intelligent detecting system, including unmanned aerial vehicle ground control system 1,
It is Intelligent unattended machine 2, independent wireless signal relay 4, airborne gas sensor 10, airborne pressure sensor 11, airborne
Temperature sensor 12, airborne dust sensor 13, airborne high-definition camera system 14, airborne IR imaging system 15, airborne laser
Scanner 16, onboard high-speed wireless transmitting system 17.Unmanned aerial vehicle ground control system 1 controls intelligent nothing by wireless transmitting system
Man-machine 2；Independent wireless signal relay 4 is used for the reception of signal between unmanned aerial vehicle ground control system 1 and Intelligent unattended machine 2
And transmission；Intelligent unattended machine 2 carry airborne gas sensor 10, airborne pressure sensor 11, airborne temperature sensor 12,
Airborne dust sensor 13, airborne high-definition camera system 14, airborne IR imaging system 15, airborne lidar instrument 16 and airborne
High speed radio transmission system 17.
Mine gas explosion the condition of a disaster intelligent detecting system, described unmanned aerial vehicle ground control system 1 are grasped including Intelligent flight
Make module 18, wireless signal transmission receiving module 19, data processing module 20, image display 21；Intelligent flight operates mould
Block 18 controls the flight of Intelligent unattended machine 2 by launching wireless signal；Wireless signal transmission receiving module 19 is controlled signal
Output and unmanned plane transmission signal reception；Data processing module 20 includes database subsystem module and processing submodule, processing
Submodule carries out Treatment Analysis to the underground volume of data of reception and obtained a result, and itself and database subsystem module are compared
It is right, it is determined that now downhole safety situation；Image display 21 is used for showing that what Intelligent unattended machine airborne equipment transmitted regards
Frequency picture.
Mine gas explosion the condition of a disaster intelligent detecting system, airborne gas sensor 10 are dense for detecting fire damp
Degree, airborne pressure sensor 11 are used for gas pressure under detecting shaft, and airborne temperature sensor 12 is used for detecting downhole temperature, airborne
Dust sensor 13 is used for dust concentration under detecting shaft.
Mine gas explosion the condition of a disaster intelligent detecting system, described airborne high-definition camera system 14, airborne ir imaging system
System 15 and airborne lidar instrument 16 are imaged for lane space.
Mine gas explosion the condition of a disaster intelligent detecting system, described onboard high-speed wireless transmitting system 17 is used for will be each airborne
The downhole data that equipment is gathered is sent to the data processing module 20 of unmanned aerial vehicle ground control system 1.
The detection method of mine gas explosion the condition of a disaster intelligent detecting system, using mine gas as claimed in claim 1
Blast the condition of a disaster intelligent detecting system, comprises the following steps：
（1）Into visual intelligent report control platform, start Intelligent unattended machine 2, system carries out every airborne equipment debugging shape automatically
The debugging of state and each module, failure alarm signal is automatically generated if there is problem in debugging process；
（2）When confirming airborne equipment and during normal each module, Intelligent unattended machine 2 sets out, and goes to accident well head, along pit shaft 3 by
Automated navigation system navigation is quick to reach underground, after reaching underground, activates each airborne equipment, proceeds by detection and information passes
It is defeated；
（3）Intelligent unattended machine 2 corresponds to the independent wireless signal relay 4 of one piece of down well placement throwing in well head, afterwards in tunnel
Straightway corner and has signal to obstruct position every 150 ~ 200 m throwings, one piece of independent wireless signal relay 4, in tunnel
Put and thrown certainly every 100 ~ 150 m throwings, one piece of independent wireless signal relay 4, all independent wireless signal relays 4
Throw out and start；
（4）Intelligent unattended machine advances to blast area, and it is dense to detect the pressure under mine, temperature, gas using each airborne equipment
Spend, dust concentration, while the live view of underground is transferred to the image display mould on ground by airborne high-definition camera system 14
Block 21；
（5）The downhole data that each airborne equipment is gathered is sent to unmanned aerial vehicle ground control system 1 by wireless transmitting system
Data processing module 20；
（6）Each data of receiving are handled by data processing module 20 and are compared with database, by final number
Shown according to by image display 21, so as to judge the environment after fire damp blast, it is determined that optimal rescue time, rescuing
Help route and rescue mode；
（7）After a detection mission is completed, maked a return voyage automatically under conditions of ensureing that electricity can make a return voyage to ground；
（8）When carrying out second of detection mission, repeat step（1）、（2）、（3）、（4）、（5）、（6）、（7）.
Claims (6)
1. mine gas explosion the condition of a disaster intelligent detecting system, including unmanned aerial vehicle ground control system, Intelligent unattended machine, independence are wireless
Signal relay device, airborne gas sensor, airborne pressure sensor, airborne temperature sensor, airborne dust sensor,
Airborne high-definition camera system, airborne IR imaging system, airborne lidar instrument, onboard high-speed wireless transmitting system, its feature
It is：Described unmanned aerial vehicle ground control system controls Intelligent unattended machine by wireless transmitting system；Described independent wireless communication
Number relay is used for the reception and transmission of signal between unmanned aerial vehicle ground control system and Intelligent unattended machine；Described intelligent nothing
It is the airborne gas sensor of man-machine carrying, airborne pressure sensor, airborne temperature sensor, airborne dust sensor, airborne
High-definition camera system, airborne IR imaging system, airborne lidar instrument and onboard high-speed wireless transmitting system.
2. mine gas explosion the condition of a disaster intelligent detecting system according to claim 1, it is characterised in that：Described unmanned plane
Ground control system includes Intelligent flight operation module, wireless signal transmission receiving module, data processing module, image and shows mould
Block；Intelligent flight operation module controls the flight of Intelligent unattended machine by launching wireless signal；Wireless signal transmission receiving module
It is controlled the output of signal and the reception of unmanned plane transmission signal；Data processing module includes database subsystem module and processing
Module, processing submodule carry out Treatment Analysis to the underground volume of data of reception and obtained a result, and by itself and database submodule
Block is compared, it is determined that now downhole safety situation；Image display is used for showing that Intelligent unattended machine airborne equipment is transmitted across
The video pictures come.
3. mine gas explosion the condition of a disaster intelligent detecting system according to claim 1, it is characterised in that：Described airborne watt
This gas sensor is used for gas density under detecting shaft, and airborne pressure sensor is used for gas pressure under detecting shaft, airborne temperature
Sensor is used for detecting downhole temperature, and airborne dust sensor is used for dust concentration under detecting shaft.
4. mine gas explosion the condition of a disaster intelligent detecting system according to claim 1, it is characterised in that：Described airborne height
Clear camera system, airborne IR imaging system and airborne lidar instrument are imaged for lane space.
5. mine gas explosion the condition of a disaster intelligent detecting system according to claim 1, it is characterised in that：Described airborne height
Fast wireless transmitting system is used for the data that the downhole data that each airborne equipment is gathered is sent to unmanned aerial vehicle ground control system
Processing module.
6. the detection method of mine gas explosion the condition of a disaster intelligent detecting system, quick-fried using mine gas as claimed in claim 1
Fried the condition of a disaster intelligent detecting system, it is characterised in that：Comprise the following steps：
（1）Into visual intelligent report control platform, start Intelligent unattended machine, system carries out every airborne equipment debugging mode automatically
And the debugging of each module, failure alarm signal is automatically generated if there is problem in debugging process；
（2）When confirming airborne equipment and normal each module, Intelligent unattended machine sets out, and goes to accident well head, along pit shaft by certainly
Dynamic navigation system navigation is quick to reach underground, after reaching underground, activates each airborne equipment, proceeds by detection and information passes
It is defeated；
（3）Intelligent unattended machine corresponds to one piece of independent wireless signal relay of down well placement throwing in well head, straight in tunnel afterwards
Line segment corner and has signal to obstruct position every 150 ~ 200 m throwings, one piece of independent wireless signal relay, in tunnel
Every 100 ~ 150 m throwings, one piece of independent wireless signal relay, all independent wireless signal relays are cast out certainly
Start；
（4）Intelligent unattended machine advances to blast area, and it is dense to detect the pressure under mine, temperature, gas using each airborne equipment
Spend, dust concentration, while the live view of underground is transferred to the image display on ground by airborne high-definition camera system；
（5）The downhole data that each airborne equipment is gathered is sent to unmanned aerial vehicle ground control system by wireless transmitting system
Data processing module；
（6）Each data of receiving are handled by data processing module and are compared with database, by final data
Shown by image display, so as to judge the environment after fire damp blast, it is determined that optimal rescue time, rescue road
Line and rescue mode；
（7）After a detection mission is completed, maked a return voyage automatically under conditions of ensureing that electricity can make a return voyage to ground；
（8）When carrying out second of detection mission, repeat step（1）、（2）、（3）、（4）、（5）、（6）、（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711094492.5A CN107762558A (en) | 2017-11-09 | 2017-11-09 | Mine gas explosion the condition of a disaster intelligent detecting system and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711094492.5A CN107762558A (en) | 2017-11-09 | 2017-11-09 | Mine gas explosion the condition of a disaster intelligent detecting system and detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107762558A true CN107762558A (en) | 2018-03-06 |
Family
ID=61272754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711094492.5A Pending CN107762558A (en) | 2017-11-09 | 2017-11-09 | Mine gas explosion the condition of a disaster intelligent detecting system and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107762558A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593842A (en) * | 2018-03-26 | 2018-09-28 | 山东大学 | Based on explosion-proof unmanned aerial vehicle platform tunnel gas automatic monitoring system and method |
| CN109101039A (en) * | 2018-06-29 | 2018-12-28 | 太原理工大学 | Vertical detection method and system |
| CN109255909A (en) * | 2018-11-02 | 2019-01-22 | 安徽理工大学 | A kind of coal mine downhole safety detection alarm evacuating system |
| CN110687024A (en) * | 2019-09-18 | 2020-01-14 | 北方爆破科技有限公司 | Image-based blasting dust amount measuring method |
| CN113175356A (en) * | 2021-05-24 | 2021-07-27 | 华北科技学院(中国煤矿安全技术培训中心) | Mine gas explosion disaster situation intelligent detection system capable of collecting disaster situations in time |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200218A (en) * | 2006-12-14 | 2008-06-18 | 山东科技大学 | Hazardous environment probing, search and rescue flight robot |
| US8903669B1 (en) * | 2009-03-27 | 2014-12-02 | The Boeing Company | Multi-band receiver using harmonic synchronous detection |
| RU2536789C1 (en) * | 2013-08-09 | 2014-12-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный минерально-сырьевой университет "Горный" | System of environmental monitoring of atmospheric air of mining industrial agglomeration |
| CN104597913A (en) * | 2015-01-06 | 2015-05-06 | 哈尔滨理工大学 | Eight-rotor flying robot used in coal mine and tunnel environment |
| CN107144302A (en) * | 2016-03-01 | 2017-09-08 | 中国矿业大学(北京) | A kind of mine disaster period detection device based on four-axle aircraft |
-
2017
- 2017-11-09 CN CN201711094492.5A patent/CN107762558A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200218A (en) * | 2006-12-14 | 2008-06-18 | 山东科技大学 | Hazardous environment probing, search and rescue flight robot |
| US8903669B1 (en) * | 2009-03-27 | 2014-12-02 | The Boeing Company | Multi-band receiver using harmonic synchronous detection |
| RU2536789C1 (en) * | 2013-08-09 | 2014-12-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный минерально-сырьевой университет "Горный" | System of environmental monitoring of atmospheric air of mining industrial agglomeration |
| CN104597913A (en) * | 2015-01-06 | 2015-05-06 | 哈尔滨理工大学 | Eight-rotor flying robot used in coal mine and tunnel environment |
| CN107144302A (en) * | 2016-03-01 | 2017-09-08 | 中国矿业大学(北京) | A kind of mine disaster period detection device based on four-axle aircraft |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593842A (en) * | 2018-03-26 | 2018-09-28 | 山东大学 | Based on explosion-proof unmanned aerial vehicle platform tunnel gas automatic monitoring system and method |
| CN109101039A (en) * | 2018-06-29 | 2018-12-28 | 太原理工大学 | Vertical detection method and system |
| CN109255909A (en) * | 2018-11-02 | 2019-01-22 | 安徽理工大学 | A kind of coal mine downhole safety detection alarm evacuating system |
| CN110687024A (en) * | 2019-09-18 | 2020-01-14 | 北方爆破科技有限公司 | Image-based blasting dust amount measuring method |
| CN113175356A (en) * | 2021-05-24 | 2021-07-27 | 华北科技学院(中国煤矿安全技术培训中心) | Mine gas explosion disaster situation intelligent detection system capable of collecting disaster situations in time |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107762558A (en) | Mine gas explosion the condition of a disaster intelligent detecting system and detection method | |
| CN107605537A (en) | Coal and gas prominent tunnel the condition of a disaster intelligent detecting system and detection method | |
| CN108033015B (en) | Unmanned aerial vehicle device and method for monitoring ignition point of coal gangue dump | |
| CN204415734U (en) | The delivery device of wrecking equipment | |
| CN107816368A (en) | Mine fire the condition of a disaster UAV Intelligent detection system and detection method | |
| CN103485826B (en) | Alarm method of coal and gas burst accidents | |
| CN105303748B (en) | Based on the fire alarm system taken photo by plane in the air | |
| CN104554657A (en) | Method for dispensing rescue equipment by utilizing unmanned plane | |
| CN105511491B (en) | A kind of unmanned plane device for driving away and method | |
| CN106355805A (en) | Big data substation monitoring system based on unmanned aerial vehicle and detection method thereof | |
| CN107356940A (en) | Low-altitude surveillance system based on Beidou satellite communication | |
| CN204432992U (en) | Unmanned plane wrecking equipment | |
| CN104715556A (en) | Fire alarm method based on aerial photography | |
| WO2015165021A1 (en) | Air vehicle protection control method and apparatus, and air vehicle | |
| CN105955293A (en) | Obstacle avoidance system of UAV (Unmanned Aerial Vehicle) field intensity meter based on power transmission and transformation equipment and method of system | |
| CN108757041A (en) | A kind of safety dynamic monitoring management system of mine | |
| WO2016098146A1 (en) | Non-destructive structure inspection system | |
| RU2016152465A (en) | AIRCRAFT SAFETY SYSTEM AND METHOD FOR COMMUNICATING WITH ITS USE | |
| CN110703778A (en) | Intelligent safety positioning inspection robot device and system for mine | |
| CN106791712A (en) | A kind of monitoring system and method in construction site | |
| CN206775646U (en) | A kind of engineering construction safety mechanism for monitoring | |
| CN207232762U (en) | A kind of disaster scene sniffing robot system | |
| CN107229290A (en) | Unmanned plane search and rescue system and method | |
| CN107757939A (en) | A kind of blast working on-the-spot make an inspection tour device | |
| CN108337038A (en) | Underground multi-aircraft collaboration rescue mode based on mesh networks and system |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180306 |