CN211318120U - Air detection device for preventing pollution of lens - Google Patents
Air detection device for preventing pollution of lens Download PDFInfo
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- CN211318120U CN211318120U CN201922268109.4U CN201922268109U CN211318120U CN 211318120 U CN211318120 U CN 211318120U CN 201922268109 U CN201922268109 U CN 201922268109U CN 211318120 U CN211318120 U CN 211318120U
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Abstract
The utility model relates to an air detection device for preventing lens pollution; 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 utility model embody: 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 utility model relates to an empty gas detection surveys technical field of equipment, refers in particular to one kind and can avoid detecting the first deposition and lead to detecting the empty gas detection survey device that prevents the camera lens pollution that the function descends or became invalid.
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.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model aims to provide an empty gas detection surveys device that prevents the camera lens pollution that can avoid detecting first deposition and lead to detecting the decline of function or inefficacy.
Realize above-mentioned purpose, the utility model discloses a technical scheme be: 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 utility model embody: the utility model aims at providing a prevent empty gas detection surveys device of camera lens pollution, it is positive polarity camera lens or negative polarity camera lens to stay the detection camera lens on traditional dust sensor through the electret mode, and add polarizing device, the air before will entering into dust sensor polarizes, dust polarization in the messenger air back has with the positive charge or the negative charge that electret detection camera lens polarity is the same, according to the principle that like nature of electric charge repels, make the dust of band polarity can not glue on the detection camera lens, thereby play the anti-pollution effect of camera lens, convenient to use, stop deposition or clean not thorough hidden danger, effectively protect whole check out test set.
Drawings
Fig. 1 is the overall structure schematic diagram 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 the embodiments of the present invention is provided with reference 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 utility model relates to an aerial detection device for preventing camera lens pollution and anti-pollution method thereof, its overall structure includes polarizing device 1, dust sensor 2 and fan 3, and polarizing device 1 communicates each other with dust sensor 2 through the exhaust end to form the measuring passageway 7 of the circulation of air that awaits measuring each other, the whole air flow through fan 3 control polarizing device 1 and 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, it is only the preferred embodiment of the present invention, not right the technical scope of the present invention makes any restriction, the technical personnel of the industry, under this technical scheme's enlightenment, can do some deformation and modification, all the basis the utility model discloses a technical essence is to any modification, the equivalent change and the modification of the above embodiment do, all still belong to the technical scheme's scope of the present invention.
Claims (7)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922268109.4U CN211318120U (en) | 2019-12-17 | 2019-12-17 | Air detection device for preventing pollution of lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922268109.4U CN211318120U (en) | 2019-12-17 | 2019-12-17 | Air detection device for preventing pollution of lens |
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| CN211318120U true CN211318120U (en) | 2020-08-21 |
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| CN201922268109.4U Active CN211318120U (en) | 2019-12-17 | 2019-12-17 | Air detection device for preventing pollution of lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907322A (en) * | 2019-12-17 | 2020-03-24 | 东莞市净诺环境科技股份有限公司 | Air detection device for preventing lens pollution and pollution prevention method thereof |
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2019
- 2019-12-17 CN CN201922268109.4U patent/CN211318120U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907322A (en) * | 2019-12-17 | 2020-03-24 | 东莞市净诺环境科技股份有限公司 | Air detection device for preventing lens pollution and pollution prevention method thereof |
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