CN107860875A - A kind of mini air monitor of household - Google Patents
A kind of mini air monitor of household Download PDFInfo
- Publication number
- CN107860875A CN107860875A CN201810033193.9A CN201810033193A CN107860875A CN 107860875 A CN107860875 A CN 107860875A CN 201810033193 A CN201810033193 A CN 201810033193A CN 107860875 A CN107860875 A CN 107860875A
- Authority
- CN
- China
- Prior art keywords
- air
- machine
- machine shell
- air exhauster
- outer machine
- 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- Withdrawn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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00722—Communications; Identification
- G01N35/00871—Communications between instruments or with remote terminals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to air monitor technical field, especially a kind of mini air monitor of household, including interior machine, the interior machine include composition of air detection storehouse and air particles analyte detection storehouse.The present invention can not only detect Inhalable Particulate, and the pernicious gas composition in air can be detected, PM2.5 PM10 sulfur dioxide can be detected, nitrogen dioxide, carbon monoxide, ozone, formaldehyde etc., Inhalable Particulate total concentration can be detected, specific particle concentration can also be individually analyzed when needing PM2.5 or PM10 concentration in individually detection air, gas detection cell can be opened when needing and detecting pernicious gas composition in air, detect pernicious gas in air, and can be with mobile phone mobile terminal equipped with Bluetooth communication modules and WIFI transceiver modules, air purifier is used cooperatively, with Bluetooth communication modules and WIFI transceiver modules, interior machine is connected each other with outer machine by WFIF, it can coordinate simultaneously with mobile phone mobile terminal, realize mobile phone control and display.
Description
Technical field
The present invention relates to air monitor technical field, more particularly to a kind of mini air monitor of household.
Background technology
In recent years, haze weather turned into an overall situation problem.Every winter, northern big city can all occur for a long time
The weather having dizzy spells, pollution index explode, when calm short of rain more very.Haze weather is detrimental to health, and has also triggered extensively
Social concerns.Pellet, it is the arch-criminal for causing haze weather such as PM2.5, PM10.With people's life water
Flat raising, concern of the common people to air quality also more and more higher, but existing air detection system is due to bulky,
Testing result is single, as some air monitor can only detect PM2.5 detection process complexity, detection cycle length, can only provide compared with
Average value in long-time, the change information of real-time air particle concentration can not be provided, family is not particularly suited for and is applicable.
The content of the invention
The invention aims to solve shortcoming present in prior art, so as to the mini air of a kind of household proposed
Detector.
To achieve these goals, present invention employs following technical scheme：
Design a kind of mini air monitor of household, including interior machine and outer machine, the interior machine includes interior machine shell, outside the interior machine
The inside of shell is provided with dividing plate, and interior machine shell is divided into three parts by the dividing plate, and bottom is battery compartment, the right is air particle
Detect storehouse, the left side and detect storehouse for composition of air, chargeable lithium cell, the air particles analyte detection are provided with inside the battery compartment
The inside in storehouse and composition of air detection storehouse is equipped with the first internal stent, and the first internal stent by the first fixing bolt with it is interior
Machine shell is fixedly connected, and one end of first internal stent is fixed with the first spectrometer, and the first spectrometer is located at air
In particle analyte detection storehouse, the described one end of first internal stent away from the first spectrometer is fixed with interior machine PLC, interior
Alarm module, the first WFIF transceiver modules and Bluetooth communication modules, the interior machine outer casing inner wall it is adjacent with the first spectrometer one
Face is connected with the first light emitters assembly by the first fixing screws, and the upper end of the interior machine shell is fixedly connected with first
Machine air exhauster, first internal stent and one end of the first spectrometer homonymy are provided with thermal conductivity gas analysis module and thermal conduction module
Circuit board, and thermal conductivity gas analysis module and thermal conduction module circuit board are respectively positioned on inside composition of air detection storehouse, the thermal conductivity gas
Body analysis module includes the first metal oxide combustion knot body, platinum line and the second metal oxide combustion knot body, the interior machine shell
Upper end is fixed with machine air exhauster in second, and the side of the interior machine shell is provided with display/panel bracket, on the display/panel bracket
Provided with LCDs.
The outer machine includes outer machine shell, and the inwall side of the outer machine shell is fixedly connected with by the second fixing screws
Second light emitters assembly, the inwall upper end of the outer machine shell are provided with outer machine air exhauster, machine air exhauster, in described second
Machine air exhauster is identical with outer machine drawing fan structure in one, and the inner vertical of the outer machine shell is provided with the second internal stent, and
Two internal stents are fixedly connected by the second fixing bolt with outer machine shell, and second internal stent is away from the second fixing bolt
Side be fixed with outer machine PLC, the one end of second internal stent away from outer machine PLC is connected with second
Spectrometer, wireless launcher and the 2nd WFIF transceiver modules, the inwall bottom of the outer machine shell are provided with lithium battery.
Preferably, machine air exhauster in described second, the inside of machine air exhauster and outer machine air exhauster is equipped with two in first
Fan head, and machine air exhauster in second, be equipped with Air Filter at the top and bottom of machine air exhauster and outer machine air exhauster in first.
Preferably, the bottom both sides of the interior machine shell are fixed with interior machine base.
Preferably, one end of the outer machine shell is provided with bonnet, and the one end of the bonnet away from outer machine shell is connected with peace
Fill seat.
Preferably, the upper end of the interior machine shell and outer machine shell be equipped with second in machine air exhauster and first machine take out
The through hole of blower fan adaptation.
The mini air monitor of a kind of household proposed by the present invention, beneficial effect are：The present invention can not only detect sky
Pellet in gas, and the pernicious gas composition in air can be detected.PM2.5 PM10 titanium dioxides can be detected
Sulphur, nitrogen dioxide, carbon monoxide, ozone, formaldehyde etc..
The present invention can detect Inhalable Particulate total concentration, when need individually detection air in PM2.5 or
Specific particle concentration can also be individually analyzed during PM10 concentration.It can be beaten when needing and detecting pernicious gas composition in air
Gas detection cell is opened, detects pernicious gas in air.
Working method of the present invention is automatic sampling, is automatically analyzed, and be furnished with Bluetooth communication modules and WIFI transceiver modules
It can be used cooperatively with mobile phone mobile terminal, air purifier.
The present invention carries Bluetooth communication modules and WIFI transceiver modules, and interior machine is connected each other with outer machine by WFIF, simultaneously
It can coordinate with mobile phone mobile terminal, realize mobile phone control and display.It can also be used cooperatively with family's air purifier.
Brief description of the drawings
Fig. 1 is machine structural representation in a kind of mini air monitor of household proposed by the present invention；
Fig. 2 detects storehouse internal structure schematic diagram for a kind of mini air monitor composition of air of household proposed by the present invention；
Fig. 3 is a kind of mini air monitor air particles analyte detection storehouse internal structure schematic diagram of household proposed by the present invention；
Fig. 4 is a kind of outer machine structural representation of mini air monitor of household proposed by the present invention；
Fig. 5 is a kind of outer machine structural representation of mini air monitor of household proposed by the present invention；
Fig. 6 is a kind of outer machine structural representation of mini air monitor of household proposed by the present invention；
Fig. 7 is a kind of outer machine drawing fan structure schematic diagram of mini air monitor of household proposed by the present invention；
Fig. 8 is a kind of mini air monitor thermal conductivity gas analysis module structural representation of household proposed by the present invention；
Fig. 9 is shell structure schematic diagram in a kind of mini air monitor of household proposed by the present invention；
Figure 10 is machine air detection in a kind of mini air monitor of household proposed by the present invention away from structural representation；
Figure 11 is a kind of outer machine air detection of mini air monitor of household proposed by the present invention away from structural representation；
Figure 12 is machine and outer machine annexation structural representation in a kind of mini air monitor of household proposed by the present invention.
In figure：Interior machine shell 1, interior machine PLC 2, the first internal stent 3, machine is taken out in the first fixing bolt 4, first
Blower fan 5, the first fixing screws 6, the first light emitters assembly 7, interior machine base 8, the first spectrometer 9, indoor alarm module 10,
Machine air exhauster 11, thermal conductivity gas analysis module 12, thermal conduction module circuit board 13, LCDs 14, display/panel bracket in second
15th, chargeable lithium cell 16, the first WFIF transceiver modules 17, Bluetooth communication modules 18, outer machine shell 19, outer machine air exhauster 20,
Bonnet 21, mounting seat 22, lithium battery 23, the second light emitters assembly 24, the second fixing screws 25, outer machine PLC 26,
Second internal stent 27, the second fixing bolt 28, the second spectrometer 29, wireless launcher 30, the 2nd WFIF transceiver modules 31,
One metal oxide combustion knot body 34, platinum line 35, the second metal oxide combustion knot body 36, interior machine 37, outer machine 38, dividing plate 39, battery
Storehouse 40, air particles analyte detection storehouse 41, composition of air detection storehouse 42.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
Reference picture 1-12, a kind of mini air monitor of household, including interior machine 37 and outer machine 38, it is characterised in that interior machine
37 include interior machine shell 1, the upper end of interior machine shell 1 and outer machine shell 19 be equipped with second in machine in machine air exhauster 11 and first
The through hole that air exhauster 5 is adapted to, can give full play to the effect of machine air exhauster 5 in machine air exhauster 11 and first in second, be easy to inhale
More air are received to be detected.
The bottom both sides of interior machine shell 1 are fixed with interior machine base 8, can be easy to place interior machine shell 1, improve and use
Effect.
The inside of interior machine shell 1 is provided with dividing plate 39, and it is battery compartment that dividing plate 39, which divides interior machine shell 1 for three parts, bottom,
40th, the right be air particles analyte detection storehouse 41, the left side be composition of air detection storehouse 42, the inside of battery compartment 40 is provided with chargeable lithium electricity
The inside in pond 16, air particles analyte detection storehouse 41 and composition of air detection storehouse 42 is equipped with the first internal stent 3, and inside first
Support 3 is fixedly connected by the first fixing bolt 4 with interior machine shell 1, and one end of the first internal stent 3 is fixed with the first spectrum
Instrument 9, and the first spectrometer 9 is located in air particles analyte detection storehouse 41, the one end of the first internal stent 3 away from the first spectrometer 9
It is fixed with interior machine PLC 2, indoor alarm module 10, the first WFIF transceiver modules 17 and Bluetooth communication modules 18, interior machine
The inwall of shell 1 one side adjacent with the first spectrometer 9 is connected with the first light emitters assembly 7 by the first fixing screws 6, interior
The upper end of machine shell 1 is fixedly connected with machine air exhauster 5 in first, and the first internal stent 3 and one end of the homonymy of the first spectrometer 9 are set
There are thermal conductivity gas analysis module 12 and thermal conduction module circuit board 13, and thermal conductivity gas analysis module 12 and thermal conduction module circuit board 13
It is respectively positioned on inside composition of air detection storehouse 42, thermal conductivity gas analysis module 12 includes the first metal oxide combustion knot body 34, platinum line
35 and the second metal oxide combustion knot body 36, the upper end of interior machine shell 1 is fixed with machine air exhauster 11 in second, in described second
The inside of machine air exhauster 5 and outer machine air exhauster 20 is equipped with two fan heads, and machine air exhauster in second in machine air exhauster 11, first
11st, the top and bottom of machine air exhauster 5 and outer machine air exhauster 20 are equipped with Air Filter in first, effectively can avoid in air
Dust is stained with flabellum.
The side of interior machine shell 1 is provided with display/panel bracket 15, and display/panel bracket 15 is provided with LCDs 14.
Outer machine 38 includes outer machine shell 19, and one end of outer machine shell 19 is provided with bonnet 21, and bonnet 21 is away from outer machine shell 19
One end be connected with mounting seat 22, can be easy to outer machine 38 being fixed on outside outdoor or window.
The inwall side of outer machine shell 19 is fixedly connected with the second light emitters assembly 24 by the second fixing screws 25,
The inwall upper end of outer machine shell 19 is provided with outer machine air exhauster 20, machine air exhauster 5 and outer in machine air exhauster 11, first in described second
The structure of machine air exhauster 20 is identical, and the inner vertical of outer machine shell 19 is provided with the second internal stent 27, and the second internal stent 27 is logical
Cross the second fixing bolt 28 to be fixedly connected with outer machine shell 19, side of second internal stent 27 away from the second fixing bolt 28 is consolidated
Surely outer machine PLC 26 is provided with, the one end of the second internal stent 27 away from outer machine PLC 26 is connected with the second spectrometer
29th, the WFIF transceiver modules 31 of wireless launcher 30 and the 2nd, the inwall bottom of outer machine shell 19 are provided with lithium battery 23.
Operation principle：The present invention is divided into interior machine 37 and outer machine 38 two parts, and outer machine 38 can be fixed on window side, by outer machine exhausting
Machine 20 sucks air, and particulate matter component and concentration in air are measured with light scattering method, and interior machine 37 divides for two parts, not only may be used
The composition of harmful substance in air can also be measured with the particulate matter measured in air, utilizes thermal conductivity gas analysis principle, temperature-sensitive
Semiconductor sensitive element coordinates pernicious gas composition in analysis circuit analysis detection air.Outer machine 38 and interior machine 38 are by without traditional thread binding
Contact is put, when outdoor air situation is bad, interior machine alarm modules 10 send audible alarm, and working method of the present invention is to adopt automatically
Sample automatically analyzes, and measurement concentration directly shows while there is dynamic image on LCDs 14, can intuitively Dynamic Announce it is various
Detect data, figure, Instrument working state, there is provided full menu in Chinese and friendly man-machine dialog interface, and calculate and put down automatically day
, monthly average value, the Monitoring Data of 30 days can be stored.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (5)
1. a kind of mini air monitor of household, including interior machine（37）With outer machine（38）, it is characterised in that the interior machine（37）Bag
Include interior machine shell（1）, the interior machine shell（1）Inside be provided with dividing plate（39）, the dividing plate（39）By interior machine shell（1）It is divided into
Three parts, bottom are battery compartment（40）, the right be air particles analyte detection storehouse（41）, the left side be composition of air detect storehouse
（42）, the battery compartment（40）Inside is provided with chargeable lithium cell（16）, the air particles analyte detection storehouse（41）With air into
Go-on-go surveys storehouse（42）Inside be equipped with the first internal stent（3）, and the first internal stent（3）Pass through the first fixing bolt（4）
With interior machine shell（1）It is fixedly connected, first internal stent（3）One end be fixed with the first spectrometer（9）, and the first light
Spectrometer（9）Positioned at air particles analyte detection storehouse（41）It is interior, first internal stent（3）Away from the first spectrometer（9）One end
It is fixed with interior machine PLC（2）, indoor alarm module（10）, the first WFIF transceiver modules（17）And Bluetooth communication modules
（18）, the interior machine shell（1）Inwall and the first spectrometer（9）Adjacent one side passes through the first fixing screws（6）It is connected with
One light emitters assembly（7）, the interior machine shell（1）Upper end be fixedly connected with machine air exhauster in first（5）, described first
Internal stent（3）With the first spectrometer（9）One end of homonymy is provided with thermal conductivity gas analysis module（12）With thermal conduction module circuit board
（13）, and thermal conductivity gas analysis module（12）With thermal conduction module circuit board（13）It is respectively positioned on composition of air detection storehouse（42）Inside,
The thermal conductivity gas analysis module（12）Knot body is fired including the first metal oxide（34）, platinum line（35）With the second metal oxide
Fire knot body（36）, the interior machine shell（1）Upper end be fixed with machine air exhauster in second（11）, the interior machine shell（1）'s
Side is provided with display/panel bracket（15）, the display/panel bracket（15）It is provided with LCDs（14）；
The outer machine（38）Including outer machine shell（19）, the outer machine shell（19）Inwall side pass through the second fixing screws
（25）It is fixedly connected with the second light emitters assembly（24）, the outer machine shell（19）Inwall upper end be provided with outer machine air exhauster
（20）, machine air exhauster in described second（11）, machine air exhauster in first（5）With outer machine air exhauster（20）Structure is identical, described outer
Machine shell（19）Inner vertical be provided with the second internal stent（27）, and the second internal stent（27）Pass through the second fixing bolt
（28）With outer machine shell（19）It is fixedly connected, second internal stent（27）Away from the second fixing bolt（28）Side fix
Provided with outer machine PLC（26）, second internal stent（27）Away from outer machine PLC（26）One end be connected with
Two spectrometers（29）, wireless launcher（30）With the 2nd WFIF transceiver modules（31）, the outer machine shell（19）Inwall bottom
Provided with lithium battery（23）.
A kind of 2. mini air monitor of household according to claim 1, it is characterised in that machine air exhauster in described second
（11）, machine air exhauster in first（5）With outer machine air exhauster（20）Inside be equipped with two fan heads, and machine air exhauster in second
（11）, machine air exhauster in first（5）With outer machine air exhauster（20）Top and bottom be equipped with Air Filter.
A kind of 3. mini air monitor of household according to claim 1, it is characterised in that the interior machine shell（1）'s
Bottom both sides are fixed with interior machine base（8）.
A kind of 4. mini air monitor of household according to claim 1, it is characterised in that the outer machine shell（19）'s
One end is provided with bonnet（21）, the bonnet（21）Away from outer machine shell（19）One end be connected with mounting seat（22）.
A kind of 5. mini air monitor of household according to claim 1, it is characterised in that the interior machine shell（1）With
Outer machine shell（19）Upper end be equipped with second in machine air exhauster（11）With first in machine air exhauster（5）The through hole of adaptation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810033193.9A CN107860875A (en) | 2018-01-14 | 2018-01-14 | A kind of mini air monitor of household |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810033193.9A CN107860875A (en) | 2018-01-14 | 2018-01-14 | A kind of mini air monitor of household |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107860875A true CN107860875A (en) | 2018-03-30 |
Family
ID=61707630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810033193.9A Withdrawn CN107860875A (en) | 2018-01-14 | 2018-01-14 | A kind of mini air monitor of household |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107860875A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108845086A (en) * | 2018-07-04 | 2018-11-20 | 湖州知辉进出口贸易有限公司 | A kind of mini air monitor of household |
| CN113970625A (en) * | 2021-12-24 | 2022-01-25 | 河北先河环保科技股份有限公司 | Ecological monitoring equipment |
-
2018
- 2018-01-14 CN CN201810033193.9A patent/CN107860875A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108845086A (en) * | 2018-07-04 | 2018-11-20 | 湖州知辉进出口贸易有限公司 | A kind of mini air monitor of household |
| CN113970625A (en) * | 2021-12-24 | 2022-01-25 | 河北先河环保科技股份有限公司 | Ecological monitoring equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207395109U (en) | A kind of room air monitoring and cleaning system | |
| CN103593949B (en) | Gas alarm method and apparatus | |
| CN107860875A (en) | A kind of mini air monitor of household | |
| CN203672855U (en) | Portable air quality detecting instrument based on T-shaped channel | |
| CN103345831B (en) | The wireless remote measurement apparatus of fine particle and system | |
| CN106370583B (en) | Method for evaluating air permeability of haze-preventing ventilation window screening | |
| CN104297119A (en) | Method for giving alarm on out-of-limit concentration of inhalable particulate matter (PM) in air | |
| CN207923810U (en) | A kind of mini air monitor of household | |
| CN205807745U (en) | A kind of air quality detector | |
| CN204117318U (en) | A kind of gas alarm | |
| CN2475032Y (en) | Indoor air quality monitor | |
| CN205481595U (en) | Air conditioner that possesses air quality monitoring function | |
| CN209263268U (en) | Intelligent air purifier control system | |
| CN206755405U (en) | Intelligent window type air filter | |
| CN103336038A (en) | Portable formaldehyde detection instrument | |
| CN109060042A (en) | A kind of ambient air quality monitoring device | |
| CN213337539U (en) | Device installed indoors and capable of monitoring formaldehyde concentration in real time | |
| CN205562457U (en) | Take electrochemistry gas concentration detection apparatus in wind channel | |
| CN210720245U (en) | Odor monitoring device | |
| CN207162870U (en) | A kind of Xingfeng capsule monitors all-in-one | |
| CN211955370U (en) | Multifunctional indoor air detection device | |
| CN210037742U (en) | Formaldehyde content detection device | |
| CN209673143U (en) | A kind of civilian Atmosphere Environment Monitoring System Bases | |
| CN207528701U (en) | A kind of house decoration Formaldehyde analyzer | |
| CN110954653A (en) | Air quality detection 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180330 |
|
| WW01 | Invention patent application withdrawn after publication |