CN114471065A - Condensation nucleus method for fast defogging - Google Patents
Condensation nucleus method for fast defogging Download PDFInfo
- Publication number
- CN114471065A CN114471065A CN202210054879.2A CN202210054879A CN114471065A CN 114471065 A CN114471065 A CN 114471065A CN 202210054879 A CN202210054879 A CN 202210054879A CN 114471065 A CN114471065 A CN 114471065A
- Authority
- CN
- China
- Prior art keywords
- unmanned aerial
- aerial vehicle
- condensation
- condensation nucleus
- fog
- 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
- 238000009833 condensation Methods 0.000 title claims abstract description 48
- 230000005494 condensation Effects 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000002994 raw material Substances 0.000 claims abstract description 22
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 12
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 7
- 239000003595 mist Substances 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000575 pesticide Substances 0.000 claims description 3
- 238000012795 verification Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims 1
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
- B01D51/02—Amassing the particles, e.g. by flocculation
- B01D51/04—Amassing the particles, e.g. by flocculation by seeding, e.g. by adding particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
- B05B12/124—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to distance between spray apparatus and target
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention discloses a method for fast defogging by a condensation nucleus method, which comprises the following steps: p1, selecting an agricultural unmanned aerial vehicle as a carrier, and installing double rows of cameras at the bottom of a machine body; p2, adjusting the focusing distance of the double rows of cameras, one for close focusing and one for far focusing, and connecting to the display of the handheld device through the network; p3, selecting calcium carbonate powder as a raw material of a condensation nucleus; p4, installing the raw material box body at the bottom of the unmanned aerial vehicle body, and butting the sprayer and the discharge pipe; p5, setting the position of the port of the discharge pipe to finish the preparation work; p6, moving the unmanned aerial vehicle to a fog scene, and starting the unmanned aerial vehicle to fly to a preset height; p7, starting a sprayer to spray out the condensation nucleus raw material; p8, separating and diffusing in fog; p9, adsorbing the mist on the surface of a condensation core for condensation to form condensation water, and falling for fog dissipation; p10, the operation is completed, so that the safety and the high efficiency of the use can be greatly improved, and the convenience and the thoroughness of the fog elimination are ensured.
Description
Technical Field
The invention relates to the technical field of demisting, in particular to a method for quickly demisting by a condensation nucleus method.
Background
In the current social life, the weather conditions in some special areas can affect normal work and life, particularly in heavy fog weather, traffic accidents and the like are easy to happen, and in order to ensure the safe and orderly work and life order, the defogging operation needs to be carried out in a specific occasion and place.
However, most of the existing defogging methods adopt a wind blowing-off mode, so that the energy consumption is high, the noise is high, the equipment cost is high, the defogging effect is poor, the efficiency is low, the wide-range popularization and use are not facilitated, and particularly, the defogging method is not applicable to a cluster fog phenomenon, so that a rapid defogging method needs to be provided, and the fog is automatically condensed and dissipated.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a method for fast defogging by a condensation nucleus method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for fast defogging by a condensation nucleation method comprises the following steps:
p1, selecting an agricultural unmanned aerial vehicle as a carrier, and installing double rows of cameras at the bottom of a machine body;
p2, adjusting the focusing distance of the double rows of cameras, one for close focusing and one for far focusing, and connecting to the display of the handheld device through the network;
p3, selecting calcium carbonate powder as a condensation nucleus raw material, and filling the calcium carbonate powder into a sealed box body to form a raw material box body;
p4, installing the raw material box body at the bottom of the unmanned aerial vehicle body, and butting the sprayer and the discharge pipe;
p5, setting the position of the port of the discharge pipe to finish the preparation work;
p6, moving the unmanned aerial vehicle to a fog scene, and starting the unmanned aerial vehicle to fly to a preset height;
p7, starting the double rows of cameras to transmit pictures in real time, and starting the sprayer to spray out the condensation nucleus raw material;
p8, controlling the unmanned aerial vehicle to fly along the fog area, blowing the condensation nucleus raw material downwards by the airflow generated by the rotation of the rotor wing, and separating and diffusing in the fog;
p9, adsorbing the mist on the surface of a condensation core for condensation to form condensation water, and falling for fog dissipation;
p10, remote verification unmanned aerial vehicle function and energy, control return journey, accomplish the operation.
Preferably, the agricultural unmanned aerial vehicle in the P1 is an agricultural pesticide spraying unmanned aerial vehicle, the model is LSA-10, the unfolding size specification is 1740mm 1520mm 550mm, the number of spray heads is 6, and the spraying amplitude is 5 meters.
Preferably, the close-range focusing range of the P2 is 1-1.5 m, the air fog is focused, the long-range focusing range is 10-15 m, and the ground is focused.
Preferably, the P4 butt sprayer is a powder sprayer and is connected with six discharging pipes and six spraying head positions in parallel.
Preferably, the port direction of the facility discharge pipe in the P5 is vertical downwards and is arranged at a position right below the rotor wing of the unmanned aerial vehicle.
Preferably, the picture transmission in the P7 adopts a vehicle-mounted antenna, and the picture image is manually controlled and displayed.
Preferably, the flight of the unmanned aerial vehicle is controlled in the P8 to be controlled remotely, the unmanned aerial vehicle flies back and forth from the center position of the fog area, and the back and forth parting distance is 10-12 meters.
Preferably, the spraying amount in the P8 mode is spraying at intervals, the interval time is 3 seconds to 5 seconds, and the spraying amount is 30 grams to 45 grams each time.
Preferably, the control return node in P10 is any one of 15% of residual energy, 10% of residual raw material and unmanned aerial vehicle function alarm.
According to the rapid defogging method by using the condensation nucleus method, the unmanned aerial vehicle is used as a driving carrier, so that selection and operation are facilitated, the calcium carbonate powder is selected as the condensation nucleus, the condensation nucleus can be adhered by water vapor to accelerate condensation, the mist is condensed and polymerized mutually to form water drops to fall, the purpose of rapid defogging is further achieved, the method is efficient, rapid and low in cost, the selected equipment and the used raw materials are low in number, the cost is controlled conveniently, large-scale popularization and application are facilitated, the operation mode and the defogging process can be controlled according to the actual state on site, the safety of the process is guaranteed, the safety and the high efficiency of use can be greatly improved, and the convenience and the thoroughness of defogging are guaranteed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A method for fast defogging by a condensation nucleation method comprises the following steps:
p1, selecting an agricultural unmanned aerial vehicle as a carrier, and installing double rows of cameras at the bottom of a machine body;
p2, adjusting the focusing distance of the double rows of cameras, one for close focusing and one for far focusing, and connecting to the display of the handheld device through the network;
p3, selecting calcium carbonate powder as a condensation nucleus raw material, and filling the calcium carbonate powder into a sealed box body to form a raw material box body;
p4, installing the raw material box body at the bottom of the unmanned aerial vehicle body, and butting the sprayer and the discharge pipe;
p5, setting the position of the port of the discharge pipe to finish the preparation work;
p6, moving the unmanned aerial vehicle to a fog scene, and starting the unmanned aerial vehicle to fly to a preset height;
p7, starting the double rows of cameras to transmit pictures in real time, and starting the sprayer to spray out the condensation nucleus raw material;
p8, controlling the unmanned aerial vehicle to fly along the fog area, blowing the condensation nucleus raw material downwards by the airflow generated by the rotation of the rotor wing, and separating and diffusing in the fog;
p9, adsorbing the mist on the surface of a condensation core for condensation to form condensation water, and falling for fog dissipation;
p10, remote verification unmanned aerial vehicle function and energy, control return journey, accomplish the operation.
Preferably, the agricultural unmanned aerial vehicle in the P1 is an agricultural pesticide spraying unmanned aerial vehicle, the model is LSA-10, the unfolding size specification is 1740mm 1520mm 550mm, the number of spray heads is 6, and the spraying amplitude is 5 meters.
Preferably, the close focusing range of the P2 is 1 m to 1.5 m, the air fog is focused, the far focusing range is 10 m to 15 m, and the ground is focused.
Preferably, the P4 butt sprayer is a powder sprayer, and six discharging pipes and six spraying head positions are connected in parallel.
Preferably, the port direction of the facility discharge pipe in the P5 is vertical downwards, and the facility discharge pipe is arranged at a position right below the unmanned aerial vehicle rotor wing.
Preferably, the picture transmission in the P7 adopts a vehicle-mounted antenna, and the picture image is manually controlled and displayed.
Preferably, the flight of the unmanned aerial vehicle is controlled in the P8 to be controlled remotely, the unmanned aerial vehicle flies back and forth from the center position of the fog area, and the back and forth parting separation distance is 10-12 meters.
Preferably, the spraying amount in the P8 mode is spraying at intervals, the interval time is 3 seconds to 5 seconds, and the spraying amount is 30 grams to 45 grams each time.
Preferably, the control return node in P10 is any one of 15% of residual energy, 10% of residual raw material and unmanned aerial vehicle function alarm.
According to the method for fast defogging by using the condensation nucleus method, the unmanned aerial vehicle is used as a driving carrier, so that selection and operation are facilitated, the calcium carbonate powder is selected as the condensation nucleus, the condensation can be accelerated by adhering water vapor to the condensation nucleus, the mist is condensed and polymerized mutually to form water drops, and the aim of fast defogging is fulfilled.
Claims (9)
1. A condensation nucleus method for fast defogging is characterized in that: the method for rapidly eliminating fog by the condensation nucleus method comprises the following steps:
p1, selecting an agricultural unmanned aerial vehicle as a carrier, and installing double rows of cameras at the bottom of a machine body;
p2, adjusting the focusing distance of the double rows of cameras, one for close focusing and one for far focusing, and connecting to the display of the handheld device through the network;
p3, selecting calcium carbonate powder as a condensation nucleus raw material, and filling the calcium carbonate powder into a sealed box body to form a raw material box body;
p4, mounting the raw material box body at the bottom of the unmanned aerial vehicle body, and butting the sprayer and the discharge pipe;
p5, setting the position of the port of the discharge pipe to finish the preparation work;
p6, moving the unmanned aerial vehicle to a fog scene, and starting the unmanned aerial vehicle to fly to a preset height;
p7, starting the double rows of cameras to transmit pictures in real time, and starting the sprayer to spray out the condensation nucleus raw material;
p8, controlling the unmanned aerial vehicle to fly along the fog area, blowing the condensation nucleus raw material downwards by the airflow generated by the rotation of the rotor wing, and separating and diffusing in the fog;
p9, adsorbing the mist on the surface of a condensation core for condensation to form condensation water, and falling for fog dissipation;
p10, remote verification unmanned aerial vehicle function and energy, control return journey, accomplish the operation.
2. The method for fast defogging by using a condensation nucleus method according to claim 1, wherein: the agricultural unmanned aerial vehicle in P1 is an agricultural pesticide spraying unmanned aerial vehicle, the model is LSA-10, the unfolding size specification is 1740mm 1520mm 550mm, the number of spray heads is 6, and the spraying amplitude is 5 meters.
3. The method for fast defogging by using a condensation nucleus method according to claim 1, wherein: the close focusing range of the P2 is 1-1.5 m, the air fog is focused, the remote focusing range is 10-15 m, and the ground is focused.
4. The method for fast defogging by using a condensation nucleus method according to claim 1, wherein: the butt joint atomizer among the P4 is the powder atomizer, and six discharging pipes and shower nozzle positions of connecting in parallel.
5. The method for fast defogging by using a condensation nucleus method according to claim 1, wherein: facility discharge pipe port direction is vertical downwards among P5, and arranges in the unmanned aerial vehicle rotor position under.
6. The method for fast defogging by using a condensation nucleus method according to claim 1, wherein: the picture transmission in the P7 adopts a vehicle-mounted antenna, and the picture image is manually controlled and displayed.
7. The method for fast defogging by using a condensation nucleus method according to claim 1, wherein the method comprises the following steps: and the P8 controls the unmanned aerial vehicle to fly in a remote control mode, the unmanned aerial vehicle flies back and forth from the center of the fog area, and the back and forth parting interval distance is 10-12 m.
8. The method for fast defogging by using a condensation nucleus method according to claim 1, wherein: the spraying amount in the P8 mode is spraying at intervals, the interval time is 3 seconds to 5 seconds, and the spraying amount is 30 grams to 45 grams each time.
9. The method for fast defogging by using a condensation nucleus method according to claim 1, wherein: and the control return node in the P10 is any one of 15% of residual energy, 10% of raw material residual and unmanned aerial vehicle function alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210054879.2A CN114471065A (en) | 2022-01-18 | 2022-01-18 | Condensation nucleus method for fast defogging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210054879.2A CN114471065A (en) | 2022-01-18 | 2022-01-18 | Condensation nucleus method for fast defogging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114471065A true CN114471065A (en) | 2022-05-13 |
Family
ID=81512861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210054879.2A Pending CN114471065A (en) | 2022-01-18 | 2022-01-18 | Condensation nucleus method for fast defogging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114471065A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241377A (en) * | 2013-05-27 | 2013-08-14 | 襄阳宏伟航空器有限责任公司 | Soft-wing unmanned aerocraft with automatic fog dispersal function |
| CN104762916A (en) * | 2014-09-20 | 2015-07-08 | 赵飞腾 | Haze detecting and eliminating system of unmanned aerial vehicle |
| CN105366044A (en) * | 2015-12-15 | 2016-03-02 | 谷家菊 | Fog dispersal type unmanned aerial vehicle |
| CN106774383A (en) * | 2016-11-30 | 2017-05-31 | 深圳明创自控技术有限公司 | Unmanned plane haze detects elimination system |
| CN108686836A (en) * | 2017-04-12 | 2018-10-23 | 张航菲 | Unmanned aerial vehicle group sprays high-pressure electrostatic except haze method |
| CN208047827U (en) * | 2018-03-09 | 2018-11-06 | 广东电网有限责任公司机巡作业中心 | A kind of sprinkling unmanned plane in the high-tension line corridor of panoramic shooting |
-
2022
- 2022-01-18 CN CN202210054879.2A patent/CN114471065A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241377A (en) * | 2013-05-27 | 2013-08-14 | 襄阳宏伟航空器有限责任公司 | Soft-wing unmanned aerocraft with automatic fog dispersal function |
| CN104762916A (en) * | 2014-09-20 | 2015-07-08 | 赵飞腾 | Haze detecting and eliminating system of unmanned aerial vehicle |
| CN105366044A (en) * | 2015-12-15 | 2016-03-02 | 谷家菊 | Fog dispersal type unmanned aerial vehicle |
| CN106774383A (en) * | 2016-11-30 | 2017-05-31 | 深圳明创自控技术有限公司 | Unmanned plane haze detects elimination system |
| CN108686836A (en) * | 2017-04-12 | 2018-10-23 | 张航菲 | Unmanned aerial vehicle group sprays high-pressure electrostatic except haze method |
| CN208047827U (en) * | 2018-03-09 | 2018-11-06 | 广东电网有限责任公司机巡作业中心 | A kind of sprinkling unmanned plane in the high-tension line corridor of panoramic shooting |
Non-Patent Citations (1)
| Title |
|---|
| 爱德华·F.阿尔宾博士, 上海科学技术文献出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109845637B (en) | Unmanned aerial vehicle electrostatic pollination device and method | |
| CN110901921B (en) | Air curtain type spraying anti-drift device and method for plant protection unmanned aerial vehicle | |
| CN107115687B (en) | Multidimensional acousto-optic stage system based on unmanned aerial vehicle aircraft carrier | |
| CN104815496B (en) | For administering the device of Public Open Space atmospheric pollution and haze | |
| CN109162431A (en) | A kind of high building wall spray robot | |
| CN113369250A (en) | Method and system for cleaning stubborn dirt on surface of solar photovoltaic panel | |
| CN105561711A (en) | Intelligent environment-friendly spraying dust removal device | |
| CN211391696U (en) | Plant protection unmanned aerial vehicle's air curtain formula spraying prevents drift device | |
| CN108043147A (en) | Sprayer | |
| CN110075462A (en) | Fire-fighting system | |
| CN111377053A (en) | Flying type spray dust removal device and method | |
| CN111495077A (en) | Dust device for construction engineering | |
| CN113864138A (en) | System and method for deicing wind power blade | |
| CN114471065A (en) | Condensation nucleus method for fast defogging | |
| CN106956771A (en) | A kind of multi-rotor unmanned aerial vehicle | |
| CN205517027U (en) | Intelligent recognition dust shaker | |
| CN212966539U (en) | Traffic signal warning device | |
| CN113695111A (en) | Adjustable fog gun machine | |
| CN111156751A (en) | High-temperature combined automatic snow floating method | |
| CN207126289U (en) | A kind of miniature dedusting environment friendly dolly | |
| CN115309182A (en) | Unmanned aerial vehicle automatic cruise system applied to forest fire prevention scene | |
| CN212605811U (en) | Flight type spray dust removal device | |
| CN214792042U (en) | Take raising and lowering functions's spraying to press down dirt and make snow car | |
| CN102600688A (en) | Water spray dedusting device for preventing air quality from exceeding standard | |
| CN105857607A (en) | Multi-rotor unmanned aerial vehicle |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220513 |
|
| RJ01 | Rejection of invention patent application after publication |