CN107786790A - A kind of windshield decision maker and video camera - Google Patents
A kind of windshield decision maker and video camera Download PDFInfo
- Publication number
- CN107786790A CN107786790A CN201610800005.1A CN201610800005A CN107786790A CN 107786790 A CN107786790 A CN 107786790A CN 201610800005 A CN201610800005 A CN 201610800005A CN 107786790 A CN107786790 A CN 107786790A
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- Prior art keywords
- light
- windshield
- strip
- video camera
- directional
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- 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.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of windshield decision maker and video camera, during for solving to have interference in the preceding shelves interior surfaces of glass and outer surface of video camera, the problem of windshield decision maker accuracy is low.Including：Photophore, transmitting light-strip, receive light-strip and light-receiving device；Wherein, the photophore is used for the light for launching constant intensity；The transmitting light-strip is integrally formed directional light for carrying out screening to the light, the windshield of video camera described in the directional light directive, and the angle between the directional light and the preceding shelves glass is setting value；The reception light-strip is used to receive light of the directional light after the preceding shelves glass-reflected；The light-receiving device is used to receive the light that the reception light-strip receives.Improve the accuracy of windshield decision maker.
Description
Technical field
The present invention relates to monitoring field, more particularly to a kind of windshield decision maker and video camera.
Background technology
More and more extensive with the application of CCTV camera, round-the-clock monitoring demand is also more and more but special at some
Under weather condition, for example, when weather is quenched or is rainy, water smoke or video camera front glass can be produced inside video camera windshield
Glass surface meeting residual rainwater or video camera windshield surface can freeze, and these factors can all cause the fuzzy of image, or even hide
Gear, can not obtain clearly image, have impact on monitoring effect.
Decision maker of the prior art, it is only capable of judging water smoke can be produced inside video camera windshield, when taking the photograph
When camera windshield remained on surface rainwater or video camera windshield surface freeze, the decision maker can not be judged；And
And the decision maker due to the transmitance of preceding shelves glass it is higher, the light reflected is accordingly less, causes the spirit of decision maker
Sensitivity is low, the change of visible ray and infrared energy in environment, can also influence the accuracy judged, make video camera in special weather
Under can not obtain clearly image.
The content of the invention
It is an object of the invention to provide a kind of windshield decision maker, with solve the preceding shelves interior surfaces of glass of video camera and
When having interference on outer surface, the problem of windshield decision maker accuracy is low.
The purpose of the present invention is achieved through the following technical solutions：
A kind of windshield decision maker, it is characterised in that including：Photophore, transmitting light-strip, receive light-strip and
Light-receiving device；Wherein,
The photophore is used for the light for launching constant intensity；
The transmitting light-strip is used to carrying out the light screening being integrally formed directional light, described in the directional light directive
The windshield of video camera, and the angle between the directional light and the preceding shelves glass is setting value；
The reception light-strip is used to receive light of the directional light after the preceding shelves glass-reflected；
The light-receiving device is used to receive the light that the reception light-strip receives.
Optionally, the windshield of video camera described in the directional light directive, and the directional light and the preceding shelves glass
Between angle be setting value, including：
The windshield of video camera described in the directional light directive, triple reflection is carried out in the preceding shelves glass inner wall；
Angle between the directional light and the preceding shelves glass is setting value, when the windshield inner surface and appearance
When noiseless on face, the directional light is total reflection in the triple reflection that the preceding shelves glass inner wall is carried out.
Optionally, the setting value is determined according to the refractive index of the preceding shelves glass.
Optionally, the light of the photophore transmitting is visible ray or infrared ray or laser.
Optionally, the device also includes：Photoelectric coupled circuit plate, the light for light-receiving device to be received are converted to voltage, institute
The intensity for stating the light that light-receiving device receives determines the magnitude of voltage of the voltage.
Optionally, the device also includes：Whether judge module, the situation of change for judging the magnitude of voltage meet in advance
The magnitude of voltage changing rule of setting.
Optionally, the device also includes：Processing module, for judging the change of the magnitude of voltage when the judge module
When situation meets the magnitude of voltage changing rule pre-set, the cleaning plant of the video camera is opened, the cleaning plant is used for
Clear up the windshield of the video camera.
A kind of windshield decision maker, it is characterised in that including：Photoelectric coupled circuit plate, photophore, light-receiving device, transmitting are led
Striation, receive light-strip, optocoupler board mount, optocoupler fixing screws；Wherein,
The photoelectric coupled circuit plate is connected with the photophore, and is arranged on the optocoupler board mount, for voltage to be sent out
The photophore is given, the photoelectric coupled circuit plate is also connected with the light-receiving device, the voltage sent for receiving the light-receiving device；
The photophore is used to be the light of constant intensity by the voltage conversion received, and launches the constant intensity
Light；
It is described transmitting light-strip be arranged on the optocoupler board mount, for the light is carried out screening be integrally formed it is flat
Row light, the windshield of video camera described in the directional light directive, and the angle between the directional light and the preceding shelves glass
For setting value；
The reception light-strip light is arranged on the coupling board mount, passes through the preceding shelves glass for receiving the directional light
Light after glass reflection；
The light-receiving device is connected with the photoelectric coupled circuit plate, the light received for receiving the reception light-strip, and
The light received is converted into voltage；
The optocoupler fixing screws are connected with the photoelectric coupled circuit plate, for fixing the photoelectric coupled circuit plate.
A kind of video camera, including above-mentioned windshield decision maker, wherein, the windshield decision maker is arranged at institute
State on the windshield of video camera.
A kind of windshield decision maker and video camera provided in an embodiment of the present invention, including：Photophore, transmitting are guide-lighting
Bar, receive light-strip and light-receiving device；Wherein, the photophore is used for the light for launching constant intensity；The transmitting light-strip
Directional light is integrally formed for carrying out screening to the light, the windshield of video camera described in the directional light directive, and institute
The angle stated between directional light and the preceding shelves glass is setting value；The reception light-strip is used to receive the directional light process
Light after the preceding shelves glass-reflected；The light-receiving device is used to receive the light that the reception light-strip receives.Improve
The accuracy of windshield decision maker.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of windshield decision maker provided in an embodiment of the present invention；
Fig. 2 is totally reflected schematic diagram for a kind of light provided in an embodiment of the present invention；
Fig. 3 is a kind of specific schematic diagram of windshield decision maker provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic perspective view of windshield decision maker provided in an embodiment of the present invention；
Fig. 5 is a kind of light schematic diagram provided in an embodiment of the present invention；
Fig. 6 is a kind of V diagram provided in an embodiment of the present invention；
Fig. 7 is another V diagram provided in an embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme provided in an embodiment of the present invention is described in detail.
The embodiment of the present invention provides a kind of windshield decision maker, as shown in figure 1, including：Photophore 100, transmitting are led
Striation 200, receive light-strip 300 and light-receiving device 400；Wherein,
The photophore is used for the light for launching constant intensity；
Optionally, the light of photophore transmitting is visible ray or infrared ray or laser, right in the embodiment of the present invention
The light does not limit.
The transmitting light-strip is used to carrying out the light screening being integrally formed directional light, described in the directional light directive
The windshield of video camera, and the angle between the directional light and the preceding shelves glass is setting value；
Optionally, the setting value is determined according to the refractive index of the preceding shelves glass.
Specifically, the refractive index of preceding shelves glass is different from the refractive index of air, when the windshield inner surface and appearance
When noiseless on face, directional light is so that during windshield, the directional light is in preceding shelves glass and air circle described in the angle directive that sets
Face is totally reflected, and is not refracted in air.
Illustrate, it is assumed that the refractive index of preceding shelves glass is n1, the refractive index of air is n2, front described in directional light directive
Glass, the angle between the directional light and the preceding shelves glass areAs shown in Fig. 2 i.e. when directional light is with θ1
Described in angle directive during windshield, the directional light is totally reflected in preceding shelves glass with Air Interface, is not refracted in air.
The reception light-strip is used to receive light of the directional light after the preceding shelves glass-reflected；
The light-receiving device is used to receive the light that the reception light-strip receives.
A kind of windshield decision maker provided in an embodiment of the present invention, including：Photophore, transmitting light-strip, receive and lead
Striation and light-receiving device；Wherein, the photophore is used for the light for launching constant intensity；The transmitting light-strip is used for described
Light carries out screening and is integrally formed directional light, the windshield of video camera described in the directional light directive, and the directional light with
Angle between the preceding shelves glass is setting value；The reception light-strip passes through the preceding shelves glass for receiving the directional light
Light after glass reflection；The light-receiving device is used to receive the light that the reception light-strip receives.Windshield is improved to sentence
Determine the accuracy of device.
In the embodiment of the present invention, windshield decision maker also includes：Photoelectric coupled circuit plate, optocoupler board mount, optocoupler are fixed
The parts such as screw, Fig. 3 are the specific schematic diagram that a kind of windshield decision maker is arranged on preceding shelves glass, including：Optocoupler electricity
Road plate 1, optocoupler board mount 2, photophore 3, light-receiving device 4, launch light-strip 5, receive light-strip 6, equipment shield 7, windshield
8, optocoupler fixing screws 10；During the angle directive windshield that light path chief ray 9 is directional light to set, the light of the directional light
Road；Wherein,
The photoelectric coupled circuit plate is connected with the photophore, and is arranged on the optocoupler board mount, for voltage to be sent out
The photophore is given, the photoelectric coupled circuit plate is also connected with the light-receiving device, the voltage sent for receiving the light-receiving device；
The photophore is used to be the light of constant intensity by the voltage conversion received, and launches the constant intensity
Light；
It is described transmitting light-strip be arranged on the optocoupler board mount, for the light is carried out screening be integrally formed it is flat
Row light, the windshield of video camera described in the directional light directive, and the angle between the directional light and the preceding shelves glass
For setting value；
The reception light-strip light is arranged on the coupling board mount, passes through the preceding shelves glass for receiving the directional light
Light after glass reflection；
The light-receiving device is connected with the photoelectric coupled circuit plate, the light received for receiving the reception light-strip, and
The light received is converted into voltage；
The optocoupler fixing screws are connected with the photoelectric coupled circuit plate, for fixing the photoelectric coupled circuit plate；
Before the optocoupler board mount is arranged on shelves glass, equipment shield is connected with preceding shelves glass.
In the embodiment of the present invention, the schematic perspective view of the judgment means is as shown in Figure 4.
In the embodiment of the present invention, the windshield of video camera described in the directional light directive, in the preceding shelves glass inner wall
Carry out triple reflection；Angle between the directional light and the preceding shelves glass is setting value, when the windshield inner surface
With it is noiseless on outer surface when, the directional light is total reflection in the triple reflection that the preceding shelves glass inner wall is carried out.
Specifically, when noiseless on the windshield inner surface and outer surface, the directional light is in the preceding shelves glass
Glass inwall occurs to be totally reflected three times, and after being totally reflected three times, the intensity of light does not change, and receive that light-strip receives arrives
Light is the light for the constant intensity that photophore is sent, wherein, it is totally reflected three times in the windshield inwall near apart from photophore
Side occurs once, occurs twice on the windshield inwall side remote apart from photophore.
In the embodiment of the present invention, when there is rainwater on current shelves glass, directional light is according to former shelves glass and the folding of air
After penetrating windshield described in the set angle directive of rate determination, because the refractive index of rainwater is different from the refractive index of air, therefore,
Directional light is only partly reflected at preceding shelves glass with Air Interface, and another part is refracted in air, as shown in Figure 5.
Specifically, when there is rainwater on current shelves glass, it is described because the refractive index of rainwater is different from the refractive index of air
Directional light is reflected and reflected in the windshield inwall side remote apart from photophore, and the intensity of the directional light after reflection subtracts
It is weak, receive the light intensity arrived that light-strip receives and weaken.
In the embodiment of the present invention, when mist and ice occurs in the preceding shelves glass surface, during with there is rainwater on preceding shelves glass
Equally, directional light is reflected, and the directional light that part reflects back can only be received by receiving light-strip.
In the embodiment of the present invention, the device also includes：Photoelectric coupled circuit plate, the light for light-receiving device to be received are converted to
Voltage, the intensity for the light that the light-receiving device receives determine the magnitude of voltage of the voltage.
Specifically, when there is rainwater on current shelves glass, the light that photoelectric coupled circuit plate receives light-receiving device is converted to electricity
Pressure, as shown in fig. 6, because when there is rainwater, the refractive index of windshield outer surface changes V diagram suddenly, described
The light intensity that light-receiving device receives also changes suddenly, therefore, the V diagram shown in Fig. 6 occurs；Current shelves glass
When occurring mist or ice on glass, the light that photoelectric coupled circuit plate receives light-receiving device is converted to voltage, V diagram such as Fig. 7 institutes
Show, because when there is mist or ice, the refractive index of windshield outer surface or inner surface gradually changes, the light-receiving device
The light intensity received also gradually changes, and therefore, the V diagram shown in Fig. 7 occurs.
In the embodiment of the present invention, the device also includes：Judge module, for judge the magnitude of voltage situation of change whether
Meet the magnitude of voltage changing rule pre-set.
In the embodiment of the present invention, the device also includes：Processing module, for judging the voltage when the judge module
When the situation of change of value meets the magnitude of voltage changing rule pre-set, the cleaning plant of the video camera, the cleaning are opened
Device is used for the windshield for clearing up the video camera.
Optionally, when the judge module judges that the magnitude of voltage is changed out for parallel light total reflection time coupling circuit board
Magnitude of voltage when, close the cleaning plant of the video camera.
In the embodiment of the present invention, a kind of video camera, including above-mentioned windshield decision maker are additionally provided, wherein, it is described
Windshield decision maker is arranged on the windshield of the video camera.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (9)
- A kind of 1. windshield decision maker, it is characterised in that including：Photophore, transmitting light-strip, receive light-strip and by Light device；Wherein,The photophore is used for the light for launching constant intensity；The transmitting light-strip is integrally formed directional light, shooting described in the directional light directive for carrying out screening to the light The windshield of machine, and the angle between the directional light and the preceding shelves glass is setting value；The reception light-strip is used to receive light of the directional light after the preceding shelves glass-reflected；The light-receiving device is used to receive the light that the reception light-strip receives.
- 2. device according to claim 1, it is characterised in that the windshield of video camera described in the directional light directive, And the angle between the directional light and the preceding shelves glass is setting value, including：The windshield of video camera described in the directional light directive, triple reflection is carried out in the preceding shelves glass inner wall；Angle between the directional light and the preceding shelves glass is setting value, when on the windshield inner surface and outer surface When noiseless, the directional light is total reflection in the triple reflection that the preceding shelves glass inner wall is carried out.
- 3. device according to claim 1 or 2, it is characterised in that the setting value is the folding according to the preceding shelves glass Penetrate rate determination.
- 4. device according to claim 1, it is characterised in that the light of the photophore transmitting is visible ray or infrared Line or laser.
- 5. device according to claim 1, it is characterised in that the device also includes：Photoelectric coupled circuit plate, for by light-receiving device The light received is converted to voltage, and the intensity for the light that the light-receiving device receives determines the magnitude of voltage of the voltage.
- 6. device according to claim 5, it is characterised in that the device also includes：Judge module, for judging the electricity Whether the situation of change of pressure value meets the magnitude of voltage changing rule pre-set.
- 7. device according to claim 6, it is characterised in that the device also includes：Processing module, for when the judgement When module judges that the situation of change of the magnitude of voltage meets the magnitude of voltage changing rule pre-set, the video camera is opened Cleaning plant, the cleaning plant are used for the windshield for clearing up the video camera.
- A kind of 8. windshield decision maker, it is characterised in that including：Photoelectric coupled circuit plate, photophore, light-receiving device, transmitting are guide-lighting Bar, receive light-strip, optocoupler board mount, optocoupler fixing screws；Wherein,The photoelectric coupled circuit plate is connected with the photophore, and is arranged on the optocoupler board mount, for voltage to be sent to The photophore, the photoelectric coupled circuit plate are also connected with the light-receiving device, the voltage sent for receiving the light-receiving device；The photophore is used to be the light of constant intensity by the voltage conversion received, and launches the light of the constant intensity Line；It is described transmitting light-strip be arranged on the optocoupler board mount, for the light is carried out screening be integrally formed it is parallel Light, the windshield of video camera described in the directional light directive, and the angle between the directional light and the preceding shelves glass is Setting value；The reception light-strip light is arranged on the coupling board mount, anti-by the preceding shelves glass for receiving the directional light Light after penetrating；The light-receiving device is connected with the photoelectric coupled circuit plate, for receiving the light that receives of reception light-strip, and by institute State the light received and be converted to voltage；The optocoupler fixing screws are connected with the photoelectric coupled circuit plate, for fixing the photoelectric coupled circuit plate.
- A kind of 9. video camera, it is characterised in that including windshield decision maker such as according to any one of claims 1 to 8, Wherein, the windshield decision maker is arranged on the windshield of the video camera.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610800005.1A CN107786790A (en) | 2016-08-31 | 2016-08-31 | A kind of windshield decision maker and video camera |
| EP17845411.2A EP3488602B1 (en) | 2016-08-31 | 2017-08-29 | Devices and methods for detecting and removing vapor |
| PCT/CN2017/099534 WO2018041109A1 (en) | 2016-08-31 | 2017-08-29 | Deivces and methods for detecting and removing vapor |
| US16/285,155 US10928630B2 (en) | 2016-08-31 | 2019-02-25 | Devices and methods for detecting and removing vapor |
| US17/169,486 US11709357B2 (en) | 2016-08-31 | 2021-02-07 | Devices and methods for detecting and removing vapor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610800005.1A CN107786790A (en) | 2016-08-31 | 2016-08-31 | A kind of windshield decision maker and video camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107786790A true CN107786790A (en) | 2018-03-09 |
Family
ID=61451818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610800005.1A Pending CN107786790A (en) | 2016-08-31 | 2016-08-31 | A kind of windshield decision maker and video camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107786790A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359250A (en) * | 2021-06-07 | 2021-09-07 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | Optical coupling structure |
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| CN201392312Y (en) * | 2009-02-26 | 2010-01-27 | 石松泉 | Raindrop sensing device |
| CN204156981U (en) * | 2014-08-15 | 2015-02-11 | 苏州华兴致远电子科技有限公司 | Bow net monitoring device and system |
| CN104378537A (en) * | 2014-11-24 | 2015-02-25 | 苏州立瓷电子技术有限公司 | Defogging method for video camera |
| CN104391419A (en) * | 2014-11-24 | 2015-03-04 | 苏州立瓷电子技术有限公司 | Defogging system for camera |
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2016
- 2016-08-31 CN CN201610800005.1A patent/CN107786790A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392312Y (en) * | 2009-02-26 | 2010-01-27 | 石松泉 | Raindrop sensing device |
| CN204156981U (en) * | 2014-08-15 | 2015-02-11 | 苏州华兴致远电子科技有限公司 | Bow net monitoring device and system |
| CN104378537A (en) * | 2014-11-24 | 2015-02-25 | 苏州立瓷电子技术有限公司 | Defogging method for video camera |
| CN104391419A (en) * | 2014-11-24 | 2015-03-04 | 苏州立瓷电子技术有限公司 | Defogging system for camera |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113359250A (en) * | 2021-06-07 | 2021-09-07 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | Optical coupling structure |
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Application publication date: 20180309 |