CN110907322A - Air detection device for preventing lens pollution and pollution prevention method thereof - Google Patents
Air detection device for preventing lens pollution and pollution prevention method thereof Download PDFInfo
- Publication number
- CN110907322A CN110907322A CN201911303577.9A CN201911303577A CN110907322A CN 110907322 A CN110907322 A CN 110907322A CN 201911303577 A CN201911303577 A CN 201911303577A CN 110907322 A CN110907322 A CN 110907322A
- Authority
- CN
- China
- Prior art keywords
- detection
- lens
- air
- dust sensor
- dust
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 139
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000002265 prevention Effects 0.000 title description 3
- 239000000428 dust Substances 0.000 claims abstract description 97
- 230000010287 polarization Effects 0.000 claims abstract description 40
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 5
- 230000008021 deposition Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
Landscapes
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Lens Barrels (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to an air detection device for preventing lens pollution and an anti-pollution method thereof; the dust sensor comprises a polarization device and a dust sensor, wherein the polarization device and the dust sensor are communicated with each other to form a detection channel for air circulation, the dust sensor comprises a built-in light source, a detection head and a photoelectric sensor, the detection head consists of a first detection lens and a second detection lens, the first detection lens and the second detection lens are symmetrically arranged in the dust sensor in a V shape, and the first detection lens and the second detection lens are both arranged in the dust sensor in an electret mode and have the same polarity; the beneficial effects of the invention are as follows: the detection lens on the traditional dust sensor is polarized in the same polarity mode through the electret, and the air to be detected is polarized by the polarization device, so that the air dust has charges with the same polarity as that of the electret detection lens, the dust cannot be adhered to the detection lens, and the anti-pollution effect of the lens is achieved.
Description
Technical Field
The invention relates to the technical field of air detection equipment, in particular to an air detection device capable of preventing lens pollution and preventing detection function from being reduced or invalid due to dust deposition of a detection head and an anti-pollution method thereof.
Background
The main function of the existing dust sensor is only to monitor the concentration of dust particles in the air, however, during the monitoring process, the sensor lens is polluted and deposited with dust, and when the dust is accumulated to a certain degree, the sensitivity of the dust sensor is affected, the overall detection effect is reduced, the accuracy of the detection result is seriously reduced, most of the existing cleaning methods for dust sensors are manually cleaned after dust is accumulated, for example, brushes are used for brushing the dust sensors or the dust accumulated on the surface is blown away by using a blowing method, the cleaning methods cannot effectively remove the dust accumulated by the detection head in the dust sensor, cannot fundamentally eliminate the dust accumulation problem of the dust sensor lens, and the cleaning and maintenance are needed after the use for a period of time, the use is very inconvenient, the deposition of dust remaining on the detection head during each cleaning step gradually causes a decrease in the detection capability of the detection device.
Disclosure of Invention
In order to solve the above problems, the present invention aims to provide an air detection device for preventing lens contamination and an anti-contamination method thereof, which can prevent the detection function from being degraded or disabled due to dust deposition on a detection head.
The technical scheme adopted by the invention is as follows: the air detection device comprises a polarization device and a dust sensor, wherein the polarization device and the dust sensor are mutually communicated to form a detection channel for air circulation, the dust sensor comprises a built-in light source, a detection head and a photoelectric sensor, the detection head consists of a first detection lens and a second detection lens, the first detection lens and the second detection lens are respectively arranged in the dust sensor in a V-shaped symmetrical mode, and the first detection lens and the second detection lens are both electret in an electret mode to have the same polarity.
Preferably, the dust sensor further comprises a fan, and the fan controls the air flow of the polarization device and the dust sensor.
Preferably, the first detection lens and the second detection lens are respectively arranged on two sides of the detection channel through which air flows.
Preferably, the polarization device is communicated with the dust sensor, and conveys polarized air to the dust sensor.
Preferably, the first detection lens and the second detection lens are both in positive polarity through an electret mode electret.
Preferably, the first detection lens and the second detection lens are both in a negative polarity by means of an electret method.
Preferably, the polarity of dust in the air polarized by the polarization device is the same as the polarity of the first detection lens and the second detection lens after the polarization.
An anti-pollution method of an air detection device for preventing lens pollution is characterized in that: the method comprises the following steps:
(1) starting a fan, realizing the flow of the whole airflow through the fan, and driving the gas polarized by the polarization device to flow into the dust sensor and discharging the gas in the dust sensor;
(2) air polarization, wherein dust in the air is polarized into positive charges or negative charges as the polarization device 1 is started;
(3) dust detection, during the air after above-mentioned polarization entered into dust sensor, according to the principle that the homopolar is rejected, the dust in the air can not adhere to first detection camera lens and second and detect on the camera lens to play anti-pollution effect.
The beneficial effects of the invention are as follows: the invention aims to provide an air detection device for preventing lens pollution and an anti-pollution method thereof, wherein a detection lens on a traditional dust sensor is positioned in an electret mode to be a positive polarity lens or a negative polarity lens, a polarization device is additionally arranged to polarize air entering in front of the dust sensor, so that dust in the air is polarized and then has positive charge or negative charge with the same polarity as that of the electret detection lens, and according to the principle of charge homopolar repulsion, the dust with polarity cannot stick to the detection lens, so that the lens is anti-pollution, the air detection device is convenient to use, the hidden danger of dust accumulation or incomplete cleaning is avoided, and the whole detection equipment is effectively protected.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Reference is made to the accompanying drawings in which:
1-a polarization means; 2-a dust sensor; 3, a fan; 4-a detection head; 5-a first detection lens; 6-a second detection lens; 7-detection channel.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings:
as shown in fig. 1, an air detection device for preventing lens pollution includes a polarization device 1 and a dust sensor 2, the polarization device 1 and the dust sensor 2 are communicated with each other to form a detection channel 7 for air circulation, the dust sensor 2 includes a built-in light source, a detection head 4 and a photoelectric sensor, the detection head 4 is composed of a first detection lens 5 and a second detection lens 6, the first detection lens 5 and the second detection lens 6 are respectively and symmetrically arranged in the dust sensor 2 in a V-shape, and the first detection lens 5 and the second detection lens 6 are both electret in an electret manner to have the same polarity.
Preferably, the dust sensor device further comprises a fan 3, wherein the fan 3 controls the air flow of the polarization device 1 and the dust sensor 2.
Preferably, the first detection lens 5 and the second detection lens 6 are respectively disposed on two sides of the detection channel 7 through which air flows.
Preferably, the polarization device 1 is in communication with the dust sensor 2 and delivers polarized air to the dust sensor 2.
Preferably, the first detection lens 5 and the second detection lens 6 are both lenses with positive polarity through an electret method.
Preferably, the first detection lens 5 and the second detection lens 6 are both lenses with negative polarity through an electret method.
Preferably, the polarity of dust in the air polarized by the polarization device 1 is the same as the polarity of the first detection lens and the second detection lens after the polarization.
An anti-pollution method of an air detection device for preventing lens pollution is characterized in that: the method comprises the following steps:
(1) the fan 3 is started, the whole airflow flow is realized through the fan 3, and the whole airflow flow comprises the steps of driving the polarized gas of the polarization device 1 to flow into the dust sensor 2 and discharging the gas in the dust sensor 2;
(2) air polarization, wherein dust in the air is polarized into positive charges or negative charges as the polarization device 1 is started;
(3) dust detection, the air after above-mentioned polarization enters into dust sensor 2, and according to the principle that like polarity is rejected, the dust in the air can not adhere to first detection camera lens 5 and second detection camera lens 6 to play anti-pollution effect.
The invention relates to an air detection device for preventing lens pollution and an anti-pollution method thereof, wherein the whole structure of the air detection device comprises a polarization device 1, a dust sensor 2 and a fan 3, the polarization device 1 is communicated with the dust sensor 2 through an exhaust end and mutually forms a detection channel 7 for circulation of air to be detected, and the fan 3 controls the whole air flow of the polarization device 1 and the dust sensor 2.
Further, the dust sensor 2 comprises a built-in light source, a detection head 4 and a photoelectric sensor, the detection head 4 is composed of a first detection lens 5 and a second detection lens 6, the first detection lens 5 and the second detection lens 6 are respectively positioned on two sides of a detection channel 7 for air circulation, and the first detection lens 5 and the second detection lens 6 are obliquely and fixedly installed on the dust sensor 2 in a V-shaped mirror symmetry mode at a certain angle.
Further, the first inspection lens 5 and the second inspection lens 6 can be simultaneously mounted with the same positive polarity lens or the same negative polarity lens by means of mounting.
Firstly, when the detection is started, the first detection lens 5 and the second detection lens 6 in the dust sensor 2 are both electret in an electret manner to be positive polarity lenses or negative polarity lenses according to actual detection requirements, at this time, the polarization device 1 polarizes air to be detected according to the polarity of the detection head 4 in the dust sensor 2, so that dust in the air to be detected is polarized and then has positive charges or negative charges with the same polarity as that of the first detection lens 5 and the second detection lens 6.
Then, the air flow polarized by the polarization device 1 is driven by the fan 3, so that the polarized air flows into the dust sensor 2 for specific detection operation, the dust sensor 2 adopts the principle of optical scattering as a whole, which is mainly used for detecting the trend of the concentration change of dust particles with the particle size of 0.3 to 10 μm in indoor air, the dust sensor 2 is internally provided with a light source and a photoelectric sensor, the light source is optimally but not limited selected to be at least one light emitting diode, the photoelectric sensor is optimally but not limited selected to be at least one photosensitive tube, when the light emitted by the light emitting diode passes through the first detection lens 5, the light is condensed by the first detection lens 5, the light can generate reflected light when encountering dust, and the photoelectric sensor condenses and detects the intensity of the reflected light through the second detection lens 6 to reflect the concentration condition of dust in air, the dust sensor 2 communicates through serial port signals, so that the mass concentration of dust is output.
In addition, in the detection, the dust in the air is polarized and then has positive charge or negative charge, the polarity of the dust is the same as that of the detection head 4 which is electret in an electret mode, and the dust cannot be adhered to the first detection lens 5 and the second detection lens 6 according to the principle of like charge repulsion, so that the pollution prevention protection of the detection head 4 in the detection process is realized, and the effect of preventing pollution of the lenses is achieved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, and those skilled in the art may make modifications and variations within the spirit of the present invention, and all modifications, equivalents and modifications of the above embodiments according to the technical spirit of the present invention are within the scope of the present invention.
Claims (8)
1. The utility model provides a prevent aerial detection device of camera lens pollution which characterized in that: the dust sensor comprises a polarization device and a dust sensor, wherein the polarization device and the dust sensor are mutually communicated to form a detection channel for air circulation, the dust sensor comprises a built-in light source, a detection head and a photoelectric sensor, the detection head comprises a first detection lens and a second detection lens, the first detection lens and the second detection lens are respectively arranged in the dust sensor in a V-shaped symmetrical mode, and the first detection lens and the second detection lens are both arranged in the dust sensor in an electret mode and have the same polarity.
2. An air detection device for preventing lens pollution according to claim 1, wherein: the dust sensor is characterized by further comprising a fan, wherein the fan controls the air flow of the polarization device and the dust sensor.
3. An air detection device for preventing lens pollution according to claim 1, wherein: the first detection lens and the second detection lens are respectively arranged on two sides of the detection channel through which air flows.
4. An air detection device for preventing lens pollution according to claim 1, wherein: the polarization device is communicated with the dust sensor and conveys polarized air to the dust sensor.
5. An air detection device for preventing lens pollution according to claim 1, wherein: the first detection lens and the second detection lens are both lenses with positive polarity through an electret mode electret.
6. An air detection device for preventing lens pollution according to claim 1, wherein: the first detection lens and the second detection lens are both lenses with the polarities of negative polarity through an electret mode.
7. An air detection device for preventing lens pollution according to claim 1, wherein: the polarity of dust in the air polarized by the polarization device is respectively the same as the polarity of the first detection lens and the second detection lens after the polarization.
8. An anti-pollution method of an air detection device for preventing lens pollution is characterized in that: the method comprises the following steps:
(1) starting a fan, realizing the flow of the whole airflow through the fan, and driving the gas polarized by the polarization device to flow into the dust sensor and discharging the gas in the dust sensor;
(2) air polarization, wherein dust in the air is polarized into positive charges or negative charges as the polarization device 1 is started;
(3) dust detection, during the air after above-mentioned polarization entered into dust sensor, according to the principle that the homopolar is rejected, the dust in the air can not adhere to first detection camera lens and second and detect on the camera lens to play anti-pollution effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911303577.9A CN110907322A (en) | 2019-12-17 | 2019-12-17 | Air detection device for preventing lens pollution and pollution prevention method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911303577.9A CN110907322A (en) | 2019-12-17 | 2019-12-17 | Air detection device for preventing lens pollution and pollution prevention method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110907322A true CN110907322A (en) | 2020-03-24 |
Family
ID=69826077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911303577.9A Pending CN110907322A (en) | 2019-12-17 | 2019-12-17 | Air detection device for preventing lens pollution and pollution prevention method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110907322A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432347A (en) * | 2020-12-07 | 2021-03-02 | 珠海格力电器股份有限公司 | Sensor cleaning assembly, sensor and air conditioning system |
| CN113909742A (en) * | 2021-09-30 | 2022-01-11 | 北京博清科技有限公司 | Welding device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001068293A (en) * | 1999-06-25 | 2001-03-16 | Toto Ltd | Dust adhesion preventing unit and image device with dust adhesion preventing unit |
| KR20030000805A (en) * | 2001-06-27 | 2003-01-06 | 재단법인 포항산업과학연구원 | The apparatus for repulsing dust to insure the visibility of camera |
| JP2003066525A (en) * | 2001-08-29 | 2003-03-05 | Olympus Optical Co Ltd | Camera |
| CN206339466U (en) * | 2016-03-25 | 2017-07-18 | 现代自动车株式会社 | Vehicle dust sensor |
| CN107930852A (en) * | 2017-11-16 | 2018-04-20 | 江门市信通通信工程有限公司 | A kind of communications equipment room of static electrification dedusting |
| CN109981934A (en) * | 2017-12-28 | 2019-07-05 | 重庆国太科技有限公司 | A kind of automatic dust removing photographic device |
| CN211318120U (en) * | 2019-12-17 | 2020-08-21 | 东莞市净诺环境科技股份有限公司 | Air detection device for preventing pollution of lens |
-
2019
- 2019-12-17 CN CN201911303577.9A patent/CN110907322A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001068293A (en) * | 1999-06-25 | 2001-03-16 | Toto Ltd | Dust adhesion preventing unit and image device with dust adhesion preventing unit |
| KR20030000805A (en) * | 2001-06-27 | 2003-01-06 | 재단법인 포항산업과학연구원 | The apparatus for repulsing dust to insure the visibility of camera |
| JP2003066525A (en) * | 2001-08-29 | 2003-03-05 | Olympus Optical Co Ltd | Camera |
| CN206339466U (en) * | 2016-03-25 | 2017-07-18 | 现代自动车株式会社 | Vehicle dust sensor |
| CN107930852A (en) * | 2017-11-16 | 2018-04-20 | 江门市信通通信工程有限公司 | A kind of communications equipment room of static electrification dedusting |
| CN109981934A (en) * | 2017-12-28 | 2019-07-05 | 重庆国太科技有限公司 | A kind of automatic dust removing photographic device |
| CN211318120U (en) * | 2019-12-17 | 2020-08-21 | 东莞市净诺环境科技股份有限公司 | Air detection device for preventing pollution of lens |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432347A (en) * | 2020-12-07 | 2021-03-02 | 珠海格力电器股份有限公司 | Sensor cleaning assembly, sensor and air conditioning system |
| CN112432347B (en) * | 2020-12-07 | 2022-04-22 | 珠海格力电器股份有限公司 | Sensor cleaning assembly, sensor and air conditioning system |
| CN113909742A (en) * | 2021-09-30 | 2022-01-11 | 北京博清科技有限公司 | Welding device |
| CN113909742B (en) * | 2021-09-30 | 2023-10-31 | 北京博清科技有限公司 | welding device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110907322A (en) | Air detection device for preventing lens pollution and pollution prevention method thereof | |
| CN101275910B (en) | Smoke detector and sampling air supplying method for smoke detector | |
| US7669457B2 (en) | Apparatus and method of smoke detection | |
| CN104549945B (en) | A kind of coating machine and its grit detection, sweep-out method | |
| EP0284469B1 (en) | Device for the real time measurement of the aerosol content of a gas | |
| CN211318120U (en) | Air detection device for preventing pollution of lens | |
| JP2013246023A (en) | Optical particle detector and particle detection method | |
| CN215375053U (en) | CCD detection mechanism and blue membrane detection device | |
| CN106483052A (en) | A kind of PM2.5 detector based on light scattering method | |
| KR101932446B1 (en) | Subway Particulate Matter Monitoring method | |
| CN201016927Y (en) | Quantum laser flue gas continuous analysis sensor | |
| WO2018194266A2 (en) | Dust measurement device and method | |
| CN211122432U (en) | Particulate matter detector and detection system with same | |
| CN105148632A (en) | On-line high-precision fixed point side emitting type leak detection device and leak detection method for bag type dust remover | |
| KR102229060B1 (en) | Optical scattering detection device with an anti-contamination tube | |
| CN102331394B (en) | Photoelectric sensor of high flow airborne particle counter | |
| CN211263092U (en) | Miniature structural large flow dust particle counter sensor | |
| JP3214850U (en) | Particle detection sensor | |
| CN100464179C (en) | Detection platform for smokemeter | |
| CN108856153A (en) | The positive and negative wind pressure automatic cleaning method of optical device | |
| CN108120659A (en) | A kind of particle concentration detecting system and method having from zero calibration | |
| CN203786000U (en) | Aerosol monitoring and alarming device | |
| CN211856262U (en) | Particulate matter detection device and detection system with same | |
| CN207472723U (en) | A kind of particle concentration detecting system having from zero calibration | |
| CN215375052U (en) | Blue membrane 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 |