CN107816368A - Mine fire the condition of a disaster UAV Intelligent detection system and detection method - Google Patents

Mine fire the condition of a disaster UAV Intelligent detection system and detection method Download PDF

Info

Publication number
CN107816368A
CN107816368A CN201711094470.9A CN201711094470A CN107816368A CN 107816368 A CN107816368 A CN 107816368A CN 201711094470 A CN201711094470 A CN 201711094470A CN 107816368 A CN107816368 A CN 107816368A
Authority
CN
China
Prior art keywords
airborne
intelligent
disaster
gas
condition
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
CN201711094470.9A
Other languages
Chinese (zh)
Inventor
王永龙
余在江
王振锋
韦纯福
王志明
宋维宾
刘宾
衡振
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.)
Henan University of Technology
Original Assignee
Henan University of Technology
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 Henan University of Technology filed Critical Henan University of Technology
Priority to CN201711094470.9A priority Critical patent/CN107816368A/en
Publication of CN107816368A publication Critical patent/CN107816368A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18Special adaptations of signalling or alarm devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C39/00Aircraft not otherwise provided for
    • B64C39/02Aircraft not otherwise provided for characterised by special use

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Alarm Systems (AREA)

Abstract

Mine fire the condition of a disaster UAV Intelligent detection system and detection method, including unmanned aerial vehicle ground control system, Intelligent unattended machine, airborne device, independent wireless signal relay, airborne device carries airborne temperature sensor, airborne pressure sensor, airborne CO gas sensor, airborne gas sensor, airborne dust sensor, airborne high-definition camera system, airborne IR imaging system, airborne lidar instrument and onboard high-speed wireless transmitting system.The system can pass through the carbon monoxide and methane gas concentration, gas pressure, temperature, dust content, underground site picture after Intelligent unattended machine airborne equipment automatic data collection underground mine fire, and these data are passed into unmanned aerial vehicle ground control system via independent wireless signal relay by onboard high-speed wireless transmitting system and institute's gathered data is analyzed, the optimal escape route of trapped personnel and most preferably go into the well time and the route of going into the well of wrecking company 5 are determined according to institute's analysis result.

Description

Mine fire the condition of a disaster UAV Intelligent detection system and detection method
Technical field
The invention belongs to safety of coal mines and intelligent disaster relief technical field, and in particular to a kind of mine fire the condition of a disaster is unmanned quick-witted Can detection system and detection method.
Background technology
Mine fire is one of five big disasters of coal production.The main harm of mine fire includes:Generation largely has Evil gas, high temperature is produced, causes gas and dust explosion, damage equipment and resource.For coal-mine fire once occurring, fire spread is fast Degree is fast, it is difficult to controls, or even can cause coal dust and gas explosion, causes unpredicted loss.Concrete on fire occurs for mine, by coal The narrow and small limitation of mine lane space, personnel's withdraws, hides and rescues that difficulty is very big, and the condition of a disaster for quickly grasping scene of fire is Rescue, the important leverage of control fire.Each coal production unit formulates strict coal-mine fire precautionary measures, and colliery occurs Concrete on fire can often control sprawling of the fire to other tunnels, but because mine fire produces substantial amounts of toxic gas and height The warm speed in roadway diffusion is fast, distance, and this is to the very harmful of personnel in the pit, therefore, it is necessary to scene of fire and surrounding Tunnel environment, which has, accurately to be grasped, and could ensure rescue personnel's safety, and promote the quick development of rescue work.It is however, current Coal production unit, which lacks, realizes long-range, unwatched detection equipment, and this brings very big resistance for the rescue of mine fire Power, in the case of uncomprehending to the condition of a disaster, it can only be forced to wait for rescue opportunity, make rescue work extremely passive.Asked based on more than Topic, when live mine fire the condition of a disaster, analysis accident conditions can promptly and accurately be gathered and determine to rescue optimal by needing research and development one kind badly Machine and the condition of a disaster intelligent detecting system for instructing rescue.
The content of the invention
It is an object of the invention to provide a kind of mine fire the condition of a disaster UAV Intelligent detection system and detection method, solves ore deposit After well fire incident 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 Make slow progress, delay 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 fire the condition of a disaster UAV Intelligent detection system, including unmanned aerial vehicle ground control system, Intelligent unattended machine, airborne dress Put, independent wireless signal relay, described unmanned aerial vehicle ground control system controls Intelligent unattended by wireless transmitting system Machine;Intelligent unattended machine carries airborne device, and airborne device includes airborne temperature sensor, airborne pressure sensor, an airborne oxygen Change carbon gas sensor, airborne gas sensor, airborne dust sensor, airborne high-definition camera system, Airborne IR into As system, airborne lidar instrument and onboard high-speed wireless transmitting system;Independent wireless signal relay is with being used for unmanned plane The reception and transmission of signal between face control system and Intelligent unattended machine.
Mine fire the condition of a disaster UAV Intelligent detection system, described unmanned aerial vehicle ground control system are grasped including Intelligent flight Make module, wireless signal transmission receiving module, data processing module, image display;Intelligent flight operation module passes through hair Penetrate the flight of wireless signal control Intelligent unattended machine;Wireless signal transmission receiving module is controlled output and the unmanned plane of signal The reception of transmission signal;Data processing module includes database subsystem module and processing submodule, well of the processing submodule to reception Lower volume of data carries out Treatment Analysis and obtained a result, and it is compared with database subsystem module, it is determined that now underground is pacified Full situation;Image display is used for showing the video pictures that Intelligent unattended machine airborne equipment transmits.
Mine fire the condition of a disaster UAV Intelligent detection system, described airborne temperature sensor are used for gas temperature under detecting shaft Degree, airborne pressure sensor are used for gas pressure under detecting shaft, and airborne CO gas sensor is used for the next oxygen of detecting shaft Change carbon gas concentration, airborne gas sensor is used for methane gas concentration under detecting shaft, and airborne dust sensor is used for visiting The lower dust concentration of well logging.
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 fire the condition of a disaster UAV Intelligent detection system, visited using mine fire the condition of a disaster UAV Intelligent Examining system, 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 conflagration area, and temperature, pressure, the device in Gas under mine are detected using each airborne equipment Bulk concentration, carbon monoxide gas concentration, dust concentration, while the live view of underground is transmitted by airborne high-definition camera system To the image display on ground;
(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 underground fire, 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 fire the condition of a disaster UAV Intelligent detection 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 fire the condition of a disaster UAV Intelligent detection system, including unmanned aerial vehicle ground control system 1st, Intelligent unattended machine 2, airborne device 4, independent wireless signal relay 5, described unmanned aerial vehicle ground control system 1 pass through nothing Line Transmission system control Intelligent unattended machine 2;Intelligent unattended machine 2 carries airborne device 4, and airborne device 4 includes airborne TEMP Device 10, airborne pressure sensor 11, airborne CO gas sensor 12, airborne gas sensor 13, airborne dust Sensor 14, airborne high-definition camera system 15, airborne IR imaging system 16, airborne lidar instrument 17 and onboard high-speed are wireless Transmission system 18;Independent wireless signal relay 5 is used for signal between unmanned aerial vehicle ground control system 1 and Intelligent unattended machine 2 Reception and transmission.
Mine fire the condition of a disaster UAV Intelligent detection system, described unmanned aerial vehicle ground control system 1 include Intelligent flight Operation module 19, wireless signal transmission receiving module 20, data processing module 21, image display 22;Intelligent flight operates Module 19 controls the flight of Intelligent unattended machine 2 by launching wireless signal;Wireless signal transmission receiving module 20 is controlled letter Number output and unmanned plane transmission signal reception;Data processing module 21 includes database subsystem module and processing submodule, place Reason 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 22 is used for showing that what Intelligent unattended machine airborne equipment transmitted regards Frequency picture.
Mine fire the condition of a disaster UAV Intelligent detection system, described airborne temperature sensor 10 are used for detecting mine gas Temperature, airborne pressure sensor 11 are used for gas pressure under detecting shaft, and airborne CO gas sensor 12 is used for detecting shaft Lower carbon monoxide gas concentration, airborne gas sensor 13 are used for methane gas concentration under detecting shaft, airborne dust sensing Device 14 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 15, airborne ir imaging system System 16 and airborne lidar instrument 17 are imaged for lane space.
Mine gas explosion the condition of a disaster intelligent detecting system, described onboard high-speed wireless transmitting system 18 is used for will be each airborne The downhole data that equipment is gathered is sent to the data processing module 21 of unmanned aerial vehicle ground control system 1.
The detection method of mine fire the condition of a disaster UAV Intelligent detection system, visited using mine fire the condition of a disaster UAV Intelligent Examining system, comprise 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 normal each module, Intelligent unattended machine sets out, and goes to accident well head, along pit shaft 3 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 the independent wireless signal relay 5 of one piece 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 5, in tunnel Every 100 ~ 150 m throwings, one piece of independent wireless signal relay 5, all independent wireless signal relays 5 are cast certainly Go out and start;
(4)Intelligent unattended machine advances to conflagration area, and temperature, pressure, the device in Gas under mine are detected using each airborne equipment Bulk concentration, carbon monoxide gas concentration, dust concentration, while the live view of underground is passed by airborne high-definition camera system 15 The defeated image display 22 to ground;
(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;
(6)Each data of receiving are handled by data processing module and are compared with database, by final data Shown by image display 22, so as to judge the environment after underground fire, it is determined that optimal rescue time, rescue 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 fire the condition of a disaster UAV Intelligent detection system, including unmanned aerial vehicle ground control system, Intelligent unattended machine, airborne dress Put, independent wireless signal relay, it is characterised in that:Described unmanned aerial vehicle ground control system passes through wireless transmitting system control Intelligent unattended machine processed;Intelligent unattended machine carries airborne device, and airborne device includes airborne temperature sensor, airborne pressure sensing Device, airborne CO gas sensor, airborne gas sensor, airborne dust sensor, airborne high-definition camera system, Airborne IR imaging system, airborne lidar instrument and onboard high-speed wireless transmitting system;Independent wireless signal relay is used The reception and transmission of signal between unmanned aerial vehicle ground control system and Intelligent unattended machine.
2. mine fire the condition of a disaster UAV Intelligent detection system according to claim 1, it is characterised in that:Described nobody Machine ground control system includes Intelligent flight operation module, wireless signal transmission receiving module, data processing module, image and shown Module;Intelligent flight operation module controls the flight of Intelligent unattended machine by launching wireless signal;Wireless signal transmission receives mould Block is controlled the output of signal and the reception of unmanned plane transmission signal;Data processing module includes database subsystem module and processing Submodule, processing submodule carry out Treatment Analysis to the underground volume of data of reception and obtained a result, and by itself and database subsystem Module is compared, it is determined that now downhole safety situation;Image display is used for showing that Intelligent unattended machine airborne equipment transmits The video pictures to come over.
3. mine fire the condition of a disaster UAV Intelligent detection system according to claim 1, it is characterised in that:Described is airborne Temperature sensor is used for gas temperature under detecting shaft, and airborne pressure sensor is used for gas pressure under detecting shaft, an airborne oxidation Carbon gas sensor is used for carbon monoxide gas concentration under detecting shaft, and airborne gas sensor is used for device in Gas under detecting shaft Bulk concentration, airborne dust sensor are 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 fire the condition of a disaster UAV Intelligent detection system, using mine fire as claimed in claim 1 The condition of a disaster UAV Intelligent detection 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 conflagration area, and temperature, pressure, the device in Gas under mine are detected using each airborne equipment Bulk concentration, carbon monoxide gas concentration, dust concentration, while the live view of underground is transmitted by airborne high-definition camera system To the image display on ground;
(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 underground fire, 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).
CN201711094470.9A 2017-11-09 2017-11-09 Mine fire the condition of a disaster UAV Intelligent detection system and detection method Pending CN107816368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711094470.9A CN107816368A (en) 2017-11-09 2017-11-09 Mine fire the condition of a disaster UAV Intelligent detection system and detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711094470.9A CN107816368A (en) 2017-11-09 2017-11-09 Mine fire the condition of a disaster UAV Intelligent detection system and detection method

Publications (1)

Publication Number Publication Date
CN107816368A true CN107816368A (en) 2018-03-20

Family

ID=61604248

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711094470.9A Pending CN107816368A (en) 2017-11-09 2017-11-09 Mine fire the condition of a disaster UAV Intelligent detection system and detection method

Country Status (1)

Country Link
CN (1) CN107816368A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108985163A (en) * 2018-06-11 2018-12-11 视海博(中山)科技股份有限公司 The safe detection method of restricted clearance based on unmanned plane
CN108999639A (en) * 2018-08-17 2018-12-14 宁波敬业控股集团有限公司 A kind of transport alarm system of underground self-navigation
GB2583466A (en) * 2019-04-22 2020-11-04 Haider Al Lami Skyline corridors: Drones passage, scanning and charging system
CN113756856A (en) * 2021-08-03 2021-12-07 河北工业大学 Intelligent fire fighting system for tunnel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103869819A (en) * 2014-03-10 2014-06-18 中国矿业大学 Belt conveyor automatic inspection system and method based on multi-rotor unmanned aerial vehicle
CN203819497U (en) * 2014-03-19 2014-09-10 华南农业大学 Fire-fighting unmanned aerial vehicle system based on 3G network
CN204831555U (en) * 2015-08-18 2015-12-02 西安科技大学 Open -air coal yard temperature measuring device of non -contact based on unmanned aerial vehicle
CN205633027U (en) * 2016-02-25 2016-10-12 中国矿业大学(北京) Multiaxis rotor is robot system in pit
CN106959434A (en) * 2017-03-03 2017-07-18 合肥工业大学 A kind of mine unmanned plane overall height Accuracy Positioning and method based on UWB
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103869819A (en) * 2014-03-10 2014-06-18 中国矿业大学 Belt conveyor automatic inspection system and method based on multi-rotor unmanned aerial vehicle
CN203819497U (en) * 2014-03-19 2014-09-10 华南农业大学 Fire-fighting unmanned aerial vehicle system based on 3G network
CN204831555U (en) * 2015-08-18 2015-12-02 西安科技大学 Open -air coal yard temperature measuring device of non -contact based on unmanned aerial vehicle
CN205633027U (en) * 2016-02-25 2016-10-12 中国矿业大学(北京) Multiaxis rotor is robot system in pit
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
CN106959434A (en) * 2017-03-03 2017-07-18 合肥工业大学 A kind of mine unmanned plane overall height Accuracy Positioning and method based on UWB

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108985163A (en) * 2018-06-11 2018-12-11 视海博(中山)科技股份有限公司 The safe detection method of restricted clearance based on unmanned plane
CN108999639A (en) * 2018-08-17 2018-12-14 宁波敬业控股集团有限公司 A kind of transport alarm system of underground self-navigation
GB2583466A (en) * 2019-04-22 2020-11-04 Haider Al Lami Skyline corridors: Drones passage, scanning and charging system
GB2583466B (en) * 2019-04-22 2024-01-03 Haider Al Lami Skyline corridors: Drones passage, scanning and charging system
CN113756856A (en) * 2021-08-03 2021-12-07 河北工业大学 Intelligent fire fighting system for tunnel

Similar Documents

Publication Publication Date Title
CN107816368A (en) Mine fire the condition of a disaster UAV Intelligent detection system and detection method
CN107605537A (en) Coal and gas prominent tunnel the condition of a disaster intelligent detecting system and detection method
CN108313088B (en) Non-contact rail vehicle barrier detection system
CN108033015B (en) Unmanned aerial vehicle device and method for monitoring ignition point of coal gangue dump
CN107762558A (en) Mine gas explosion the condition of a disaster intelligent detecting system and detection method
JP4475632B2 (en) Transmission line inspection system using unmanned air vehicle
CN104537898B (en) A kind of unmanned plane of air-ground coordination perceives avoidance system and its bypassing method
CN104732700B (en) Based on the fire alarm system taken photo by plane in the air
CN103453892B (en) A kind of Bridge Crack Real-Time Monitoring and fast prior-warning device
CN104715556A (en) Fire alarm method based on aerial photography
JP6802599B1 (en) Inspection system
CN106919184A (en) Double unmanned plane coordinated operation systems and double unmanned plane work compound methods
CN110821560A (en) Tunnel inspection system
KR102136293B1 (en) Autonomous vehicle control system and method
CN107464046A (en) A kind of Geological Hazards Monitoring assessment system based on unmanned plane
CN107356940A (en) Low-altitude surveillance system based on Beidou satellite communication
CN205785937U (en) A kind of unmanned plane environmental water sample gathers and water quality conventional project filed detection system
CN107882593A (en) Mine water disaster the condition of a disaster UAV Intelligent detection system and detection method
CN111024043A (en) Satellite remote sensing method based on sensor triggering
JP2005265710A (en) Transmission line inspection system using unpiloted plane and method using it
CN106385458A (en) Supervision and management center system of construction field
Paul et al. Railway track crack detection
CN108337038A (en) Underground multi-aircraft collaboration rescue mode based on mesh networks and system
CN107274701B (en) Intelligent mountain falling object avoidance method and system for automobile
JP2024073480A (en) Road information generating device

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: 20180320

WD01 Invention patent application deemed withdrawn after publication