CN106973882A - Unmanned plane for pesticide spraying - Google Patents
Unmanned plane for pesticide spraying Download PDFInfo
- Publication number
- CN106973882A CN106973882A CN201710161395.7A CN201710161395A CN106973882A CN 106973882 A CN106973882 A CN 106973882A CN 201710161395 A CN201710161395 A CN 201710161395A CN 106973882 A CN106973882 A CN 106973882A
- Authority
- CN
- China
- Prior art keywords
- unmanned plane
- spray
- spray boom
- work chamber
- spray tank
- 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.)
- Withdrawn
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 35
- 239000000575 pesticide Substances 0.000 title claims abstract description 20
- 239000007921 spray Substances 0.000 claims abstract description 84
- 238000007600 charging Methods 0.000 claims abstract description 18
- 239000000126 substance Substances 0.000 claims abstract description 10
- 239000012634 fragment Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000005183 dynamical system Methods 0.000 claims description 3
- 239000003905 agrochemical Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000002917 insecticide Substances 0.000 description 5
- 241000607479 Yersinia pestis Species 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004899 c-terminal region Anatomy 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0025—Mechanical sprayers
- A01M7/0032—Pressure sprayers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
- B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Insects & Arthropods (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Catching Or Destruction (AREA)
Abstract
Present invention relates particularly to a kind of unmanned plane for pesticide spraying, including unmanned plane body, support plate, spray tank and chemical spraying device, support plate is fixedly connected on below unmanned plane body, and work chamber is connected with the bottom surface of support plate；Chemical spraying device includes force (forcing) pump, liquor charging bottle, connecting tube and spray boom, and spray boom, which is fixed on the outer side bottom surface of the work chamber, spray boom, is evenly arranged with multiple shower nozzles；Spray boom for can extending structure, its both side ends offers internal thread hole, and has and have the external screw thread matched with internal thread in the plug matched with internal thread and extension tube, and the plug and extension rod；Also multiple shower nozzles are evenly arranged with extension tube.In the present invention, spray boom for can extending structure, can reduce the width that unmanned plane is occupied when transport, it is convenient to transport, multiple shower nozzles are uniformly arranged on spray boom, and spray boom in use, can extend again, increases spray area, greatly improves operating efficiency.
Description
Technical field
The present invention relates to unmanned air vehicle technique field, and in particular to a kind of unmanned plane for pesticide spraying.
Background technology
At present, China's agricultural spray agricultural chemicals is mostly sprayed using manpower or farm machinery, and operating efficiency is low, the decoction of sprinkling
Can only nurse crop surface, and using manpower spray insecticide directly harm operating personnel health of human body, easily cause personnel
Poisoning is even dead.
Aerial sprays agricultural chemicals can widely apply to forestry, the pest and disease damage grass preventing and treating of crop field cereal crops, especially in burst
Property disaster arrive when, aerial pesticide preventing and treating have the irreplaceable convenient, fast effect of other any equipments.And unmanned equipment
Have operation height it is low, drift about less, can hovering, efficiency high many advantages, such as.Unmanned plane is sprayed insecticide can be quickly
The preventing and treating of the explosive disease pest and weed of large area is efficiently completed, while do not restricted by geographic factor, and can be with long-distance remote control
Operation, makes spraying operation personnel avoid the harm exposed to agricultural chemicals, improves the security of spraying operation.
With the application development of unmanned plane, people have invented the unmanned plane for pesticide spraying, such as U of CN 203946277
A kind of unmanned plane for spraying insecticide is disclosed, it includes fuselage, is arranged at the main rotor of fuselage roof and is arranged at
Agricultural chemicals medicine-chest and flusher are provided with the undercarriage of fuselage bottom, the support body of undercarriage, the flusher includes support,
One end of support is fixed on the support body, and the other end stretches out, the side that the multiple agricultural chemicals shower nozzle extends along the support
To being distributed on the support.This unmanned plane sprayed insecticide is symmetrically mounted on undercarriage both sides due to support, therefore it is horizontal
It is larger to width, it is not readily transportable to carry；And the agricultural chemicals sprayed laterally flies away with the wind, it is impossible to fully fall on crop, meeting
Cause the waste of agricultural chemicals.
The content of the invention
It is big in order to solve unmanned plane transverse width of the prior art, it is not readily transportable carry, spray effect is bad asks
Topic, the invention provides a kind of unmanned plane for pesticide spraying.The technical problem to be solved in the present invention passes through following technical side
Case is realized：
A kind of unmanned plane for pesticide spraying, including unmanned plane body, support plate, spray tank and chemical spraying device, the branch
Frame flat board is fixedly connected on below unmanned plane body, and work chamber is connected with the bottom surface of the support plate；
The spray tank is concave, including symmetrically arranged left box body and right case, between the left box body and right case
For the connecting portion of depression, the spray tank is fixed in the work chamber；
The chemical spraying device includes force (forcing) pump, liquor charging bottle, connecting tube and spray boom, and the force (forcing) pump is fixed on the left box body and the right side
Above the connecting portion between casing, the liquor charging bottle has two, is separately fixed on the right side wall of the left box body, described
On the left side wall of right case；
The force (forcing) pump is provided with a water inlet pipe and a Y-shaped outlet pipe, and one end of the water inlet pipe connects entering for force (forcing) pump
Liquid mouthful, the other end connects the spray tank bottom, and one end of the outlet pipe connects the liquid outlet of the force (forcing) pump, in addition two ends
The bottom with two liquor charging bottles is connected respectively；
The liquor charging bottle is connected by a connecting tube with spraying the liquid-transport pipe-line in the spray boom respectively；
The spray boom is fixed on the outer side bottom surface of the work chamber, and the connecting tube is connected through the bottom surface of the work chamber
Multiple shower nozzles are evenly arranged with liquid-transport pipe-line in the spray boom, the spray boom；
The spray boom for can extending structure, its both side ends offers internal thread hole, and has the plug matched with internal thread and prolong
There is the external screw thread matched with internal thread on long tube, and the plug and extension rod；Also it is uniformly arranged in the extension tube
There are multiple shower nozzles.
More specifically, in the unmanned plane for pesticide spraying of the present invention, on four inwalls of the work chamber respectively
It is provided with relevant position on the shell fragment of an inverted L-shaped, the outer wall of the spray tank and is provided with a slot, the shell fragment insertion is described
In slot, so that the spray tank is fixed in work chamber.
More specifically, having a top in the unmanned plane for pesticide spraying of the present invention, on the top surface of the spray tank
Lid, the top cover is connected through a screw thread with the spray tank, and a screen pack is additionally provided with below the top cover.
More specifically, in the unmanned plane for pesticide spraying of the present invention, being provided with the unmanned plane body is used to feel
The alignment sensor for answering unmanned plane height and position to move, the receiver of remote-control sytem of the alignment sensor and unmanned plane passes through wire
Connect.
More specifically, in the unmanned plane for pesticide spraying of the present invention, controller is provided with the unmanned plane body
And power supply, the receiver of remote-control sytem of the controller and unmanned plane connect by wire, and the power supply is controller, chemical spraying device and nothing
Man-machine dynamical system is powered.
Beneficial effects of the present invention：
1st, spray boom for can extending structure, can reduce the width that unmanned plane is occupied when transport, it is convenient to transport, in use,
It can extend again and multiple shower nozzles are uniformly arranged on spray boom, and spray boom, increase spray area, greatly improve operating efficiency；
The positional symmetry of the devices such as spray tank, liquor charging bottle the 2nd, in work chamber is set, and contributes to unmanned plane to keep balance；
3rd, the downdraught that rotor is produced helps to increase spray good to the penetrability of crop, spray effect；
4th, spray tank is fixed as one by four shell fragments and work chamber, increases overall stability, mode flight course Chinese medicine
Liquid case is moved, and causes unmanned plane during flying unstable.
The present invention is described in further details below with reference to drawings and Examples.
Brief description of the drawings
Fig. 1 is the present invention for the overall structure diagram for the unmanned plane sprayed insecticide；
In figure：1- unmanned planes body, 11- alignment sensors, 2- support plates, 3- spray tanks, 31- left box bodies, 32- right cases,
33- connecting portions, 34- top covers, 4- work chamber, 41- shell fragments, 5- force (forcing) pumps, 51- water inlet pipes, 52- outlet pipes, 6- liquor chargings bottle, 7-
Connecting tube, 8- spray booms, 81- shower nozzles, 82- plugs, 83- extension rods.
Embodiment
Reach technological means and effect that predetermined purpose is taken for the present invention is expanded on further, below in conjunction with accompanying drawing and reality
Embodiment, architectural feature and its effect of example to the present invention are applied, is described in detail as follows.
Embodiment 1：
Unmanned plane for pesticide spraying as shown in Figure 1, including unmanned plane body 1, support plate 2, spray tank 3 and spray dress
Put, support plate 2 is fixedly connected on the lower section of unmanned plane body 1, the bottom surface of support plate 2 and is connected with work chamber 4.Spray tank
3 be concave, including symmetrically arranged left box body 31 and right case 32, between left box body 31 and right case 32 for depression company
Socket part 33, spray tank 3 is fixed in work chamber 4.Specifically, it is respectively arranged with one on four inwalls of work chamber 4
Relevant position is provided with slot on the shell fragment 41 of inverted L-shaped, the outer wall of spray tank, in the insertion slot of shell fragment 41, so that by decoction
Case 3 is fixed in work chamber 4.
Spray tank is fixed as one by four shell fragments with work chamber, is increased in overall stability, mode flight course
Spray tank is moved, and causes unmanned plane during flying unstable.
Chemical spraying device includes force (forcing) pump 5, liquor charging bottle 6, connecting tube 7 and spray boom 8, and force (forcing) pump 5 is fixed on left box body 31 and the right side
The top of connecting portion 33 between casing 32, liquor charging bottle 6 has two, is separately fixed on the right side wall of left box body 31, right case 32
Left side wall on.Outlet pipe 52 of the force (forcing) pump 5 provided with a Y-shaped of water inlet pipe 51 and one, one end connection of water inlet pipe 51 adds
The inlet of press pump 5, other end connection spray tank 3 bottom, one end of outlet pipe 52 connects the liquid outlet of force (forcing) pump 5, and in addition two
Bottom of the end respectively with two liquor charging bottles 6 is connected.Liquor charging bottle 6 passes through a connecting tube 7 and the liquid-transport pipe-line in spray spray boom 8 respectively
Connection.Spray boom 8 is fixed on the outer side bottom surface of work chamber 4, and connecting tube 7 connects defeated in spray boom 8 through the bottom surface of work chamber 4
Multiple shower nozzles 81 are evenly arranged with liquid pipe road, spray boom 8.Spray boom 8 for can extending structure, its both side ends offers internal thread
Hole, and have in the plug 82 matched with internal thread and extension tube 83, and plug 82 and extension rod 83 and have and internal thread phase
The external screw thread matched somebody with somebody；Also multiple shower nozzles 81 are evenly arranged with extension tube.Specific connected mode is as shown in figure 1, the A ends of spray boom 8 connect
The C-terminal of extension rod 83 is connect, the B ends of spray boom 8 connect the D ends of extension rod 83.
Spray boom for can extending structure, can reduce the width that unmanned plane is occupied when transport, it is convenient to transport, use
When, it can extend again and multiple shower nozzles are uniformly arranged on spray boom, and spray boom, increase spray area, greatly improve operating efficiency.Spray
It is provided with left box body and right case a liquor charging bottle in device, the left and right sides liquor charging into spray boom simultaneously, it is ensured that spray
Uniformity.
There is a top cover 34, top cover 34 is connected through a screw thread with spray tank 3 on the top surface of spray tank 3, below top cover also
It is provided with a screen pack.Decoction configuration adds water to be carried out by top cover, and filtering liquid medicine can be played a part of by adding screen pack, be prevented
Only there is solid impurity, block chemical spraying device.
Unmanned plane body 1, which is provided with, to be used to sense the alignment sensor 11 that unmanned plane height and position are moved, orientation sensing
The receiver of remote-control sytem of device 11 and unmanned plane is connect by wire.Also there is controller and power supply, controller and nothing on unmanned plane body 1
Man-machine receiver of remote-control sytem is connect by wire, and power supply is that controller, chemical spraying device and unmanned plane dynamical system are powered.
In use, the unmanned plane is transported to operating location, the plug at spray boom two ends is unclamped using spanner, installation is prolonged
Stock, by unmanned controller power supply opening, connects the unmanned plane during flying system power supply, is taken off by unmanned controller control
Operation, when alignment sensor sensing unmanned plane height is moved to the predetermined area with position, unmanned plane hovering；Start spray dress
Power supply is put, force (forcing) pump is started working, the decoction in spray tank is extracted and is delivered in liquor charging bottle, then enters spray by connecting tube
Liquid-transport pipe-line in bar, is finally sprayed by shower nozzle.
After pesticide spraying operation, control unmanned plane to land by unmanned controller, remote control is used after landing by power supply
Close, close power supply of remote controller, extension rod is unclamped using instrument, pulled down, entrucking.
The present invention is arranged on agricultural unmanned aerial vehicle on agricultural unmanned plane by unmanned plane limiting lock and universal rotational ball and sprayed
Flying speed is spilt for 3~7m/s, spraying operation width is 6~10m, scale operation can reach 80~100 mu, efficiency per hour
100 times are at least higher by than conventional spray.Agricultural depopulated helicopter can reduce staff's exposed to pesticides to greatest extent
Time, it is ensured that the life security of staff.The application of unmanned aerial vehicle spray application not by landform and height limitation, as long as
In the flying height of unmanned plane, taken off in field and crops are implemented with operation, unmanned plane is operated using long-distance remote control
With winged conduct boat AUTONOMOUS TASK function, the GPS information in farmland before spraying operation, need to be only gathered, and flight course planning is good, it is defeated
Enter into the internal control system of earth station, earth station assigns instruction to aircraft, unmanned plane can be completed from chief commander's spraying operation,
Flown back automatically to takeoff point after completion.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (5)
1. a kind of unmanned plane for pesticide spraying, including unmanned plane body（1）, support plate（2）, spray tank（3）And spray
Device, the support plate（2）It is fixedly connected on unmanned plane body（1）Lower section, the support plate（2）Bottom surface on be connected with
Work chamber（4）；Characterized in that,
The spray tank（3）For concave, including symmetrically arranged left box body（31）And right case（32）, the left box body
（31）And right case（32）Between for depression connecting portion（33）, the spray tank（3）It is fixed on the work chamber（4）In；
The chemical spraying device includes force (forcing) pump（5）, liquor charging bottle（6）, connecting tube（7）And spray boom（8）, the force (forcing) pump（5）It is fixed
In the left box body（31）And right case（32）Between the connecting portion（33）Top, the liquor charging bottle（6）There are two, respectively
It is fixed on the left box body（31）Right side wall on, the right case（32）Left side wall on；
The force (forcing) pump（5）Provided with a water inlet pipe（51）With the outlet pipe of a Y-shaped（52）, the water inlet pipe（51）One
End connection force (forcing) pump（5）Inlet, the other end connects the spray tank（3）Bottom, the outlet pipe（52）One end connection
The force (forcing) pump（5）Liquid outlet, in addition two ends respectively with two liquor chargings bottle（6）Bottom connection；
The liquor charging bottle（6）Pass through a connecting tube respectively（7）With the spray boom（8）In liquid-transport pipe-line connection；
The spray boom（8）It is fixed on the work chamber（4）Outer side bottom surface, the connecting tube（7）Through the work chamber
（4）Bottom surface connect the spray boom（8）In liquid-transport pipe-line, the spray boom（8）On be evenly arranged with multiple shower nozzles（81）；
The spray boom（8）For can extending structure, its both side ends offers internal thread hole, and has the plug matched with internal thread
（82）And extension tube（83）, and the plug（82）And extension rod（83）On have the external screw thread matched with internal thread；Institute
State and multiple shower nozzles (81) are also evenly arranged with extension tube.
2. the unmanned plane according to claim 1 for pesticide spraying, it is characterised in that the work chamber（4）Four
The shell fragment of an inverted L-shaped is respectively arranged with individual inwall（41）, on the outer wall of the spray tank relevant position provided with a slot,
The shell fragment（41）Insert in the slot, so that by the spray tank（3）It is fixed on work chamber（4）In.
3. the unmanned plane according to claim 1 for pesticide spraying, it is characterised in that the spray tank（3）Top surface
It is upper that there is a top cover（34）, the top cover（34）With the spray tank（3）It is connected through a screw thread, is also set up below the top cover
There is a screen pack.
4. the unmanned plane according to claim 1 for pesticide spraying, it is characterised in that in the unmanned plane body（1）
Being provided with is used to sense the alignment sensor that unmanned plane height and position are moved（11）, the alignment sensor（11）With unmanned plane
Receiver of remote-control sytem connect by wire.
5. the unmanned plane according to claim 1 for pesticide spraying, it is characterised in that in the unmanned plane body（1）
Be provided with controller and power supply, the receiver of remote-control sytem of the controller and unmanned plane connect by wire, the power supply be controller,
Chemical spraying device and unmanned plane dynamical system are powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710161395.7A CN106973882A (en) | 2017-03-17 | 2017-03-17 | Unmanned plane for pesticide spraying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710161395.7A CN106973882A (en) | 2017-03-17 | 2017-03-17 | Unmanned plane for pesticide spraying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106973882A true CN106973882A (en) | 2017-07-25 |
Family
ID=59339707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710161395.7A Withdrawn CN106973882A (en) | 2017-03-17 | 2017-03-17 | Unmanned plane for pesticide spraying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106973882A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107494499A (en) * | 2017-09-22 | 2017-12-22 | 常州有恒智能装备科技有限公司 | Unmanned plane pesticide spraying control system |
| CN107554796A (en) * | 2017-09-06 | 2018-01-09 | 四川大友机器人有限公司 | A kind of agricultural uses plant protection unmanned plane |
| CN107804465A (en) * | 2017-12-12 | 2018-03-16 | 赵有科 | A kind of fixing device of unmanned plane apparatus for automatically loading |
| CN109625273A (en) * | 2018-11-28 | 2019-04-16 | 陈都 | A kind of plant protection drone |
| CN111134105A (en) * | 2020-02-19 | 2020-05-12 | 南京林业大学 | Liquid supply system suitable for aviation pesticide application |
| CN113734445A (en) * | 2021-09-02 | 2021-12-03 | 广西电网有限责任公司百色供电局 | Unmanned aerial vehicle electrified rust removal device and operation method thereof |
| CN114506456A (en) * | 2021-12-28 | 2022-05-17 | 山东省农业科学院 | Be applicable to unmanned aerial vehicle foliage fertilizer sprinkler in cornfield |
-
2017
- 2017-03-17 CN CN201710161395.7A patent/CN106973882A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554796A (en) * | 2017-09-06 | 2018-01-09 | 四川大友机器人有限公司 | A kind of agricultural uses plant protection unmanned plane |
| CN107494499A (en) * | 2017-09-22 | 2017-12-22 | 常州有恒智能装备科技有限公司 | Unmanned plane pesticide spraying control system |
| CN107804465A (en) * | 2017-12-12 | 2018-03-16 | 赵有科 | A kind of fixing device of unmanned plane apparatus for automatically loading |
| CN109625273A (en) * | 2018-11-28 | 2019-04-16 | 陈都 | A kind of plant protection drone |
| CN109625273B (en) * | 2018-11-28 | 2022-03-18 | 陈都 | Plant protection unmanned aerial vehicle |
| CN111134105A (en) * | 2020-02-19 | 2020-05-12 | 南京林业大学 | Liquid supply system suitable for aviation pesticide application |
| CN113734445A (en) * | 2021-09-02 | 2021-12-03 | 广西电网有限责任公司百色供电局 | Unmanned aerial vehicle electrified rust removal device and operation method thereof |
| CN113734445B (en) * | 2021-09-02 | 2023-10-31 | 广西电网有限责任公司百色供电局 | Unmanned aerial vehicle electrified rust removing device and operation method thereof |
| CN114506456A (en) * | 2021-12-28 | 2022-05-17 | 山东省农业科学院 | Be applicable to unmanned aerial vehicle foliage fertilizer sprinkler in cornfield |
| CN114506456B (en) * | 2021-12-28 | 2023-12-29 | 山东省农业科学院 | Unmanned aerial vehicle foliar fertilizer sprinkler suitable for corn field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170725 |