CN108501815A - A kind of anti-dazzle driving mirror system and control method - Google Patents
A kind of anti-dazzle driving mirror system and control method Download PDFInfo
- Publication number
- CN108501815A CN108501815A CN201810220094.1A CN201810220094A CN108501815A CN 108501815 A CN108501815 A CN 108501815A CN 201810220094 A CN201810220094 A CN 201810220094A CN 108501815 A CN108501815 A CN 108501815A
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- CN
- China
- Prior art keywords
- rearview mirror
- microcontroller
- phototriode
- mirror
- dazzle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
- B60R1/083—Anti-glare mirrors, e.g. "day-night" mirrors
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Optical Elements Other Than Lenses (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Abstract
A kind of anti-dazzle driving mirror system of present invention proposition and control method, the signal of light intensity is acquired by former and later two phototriodes of rearview mirror, optical signal is simultaneously converted to voltage signal and is input in microcontroller by phototriode, microcontroller is analyzed and is handled to the signal of input again, then it is determined whether needing to export a voltage to rearview mirror, when output voltage is to rearview mirror, the characteristics of can changing colour after being powered according to electrochomeric glass, change the light transmittance of rearview mirror, the effect for weakening reflectivity is played, it is final to realize abblendbar function.The present invention can be suitable for the electronic anti-dazzle mesh inside-automobile rear mirror of any specification and type, reach required electronic anti-dazzle mesh effect and ensure the permanent normal use time limit.
Description
Technical field
The invention belongs to the technical field of vehicle mirrors more particularly to a kind of anti-dazzle driving mirror systems and controlling party
Method.
Background technology
In driving at night, since subsequent vehicle head lamp shines into the eyes of front truck driver, in this way meeting after reflection
So that driver is dazzled, this often influences traffic safety.So anti-glare problem becomes important for rearview mirror technology
One of developing direction.Electronic anti-dazzle mesh rearview mirror makes of electrochromism technology, and " electrochromic material " is to be powered
A kind of material of screen light transmittance can be changed afterwards.It can adjust specular reflectivity according to the change of ambient light, reach
Anti-dazzle effect, and this rearview mirror can also keep a higher reflectivity under normal conditions, and this is in night row
It is highly useful when vehicle.Because driver is in night traveling, when the vehicle being followed by has strong illumination to come, minute surface energy root
Reflectivity, the harm that can be effectively prevented from this way caused by dazzle are automatically adjusted according to the variation of light.
Invention content
Technical problem to be solved by the present invention lies in view of the above problems, provide a kind of anti-dazzle driving mirror system
System and control method, control logic is simple, and efficiency is also relatively high.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of anti-dazzle driving mirror system, feature
It is, including micro controller, rearview mirror, preceding phototriode, rear phototriode and control circuit, the micro controller is monolithic
Machine, the rearview mirror are electrochomeric glass, and the forward and backward phototriode is respectively arranged on the rear and front end face of rearview mirror,
The microcontroller passes through control circuit and rearview mirror, preceding phototriode, rear phototriode and automobile gear level cartridge controller phase
Even.
Using a kind of control method of anti-dazzle driving mirror system described in claim 1, the microcontroller is automatic first
Judge whether vehicle hang is reverse gear, and when positioned at reverse gear, the voltage that microcontroller is exported to rearview mirror is zero, backsight
Mirror cannot change light transmittance because could not be powered, and not have abblendbar function, when vehicle does not hang reverse gear, microcontroller according to
The light intensity signal of forward and backward phototriode transmitted, two phototriodes acquire three times respectively, and microcontroller is to collected light
Strong signal is compared, if after twice signal value subtract first time signal value absolute value be less than setting error amount when, monolithic
Machine to rearview mirror output be zero voltage, rearview mirror then do not have abblendbar function, when after twice signal value subtract for the first time
When the absolute value of signal value is less than the error amount of setting, microcontroller is by comparing preceding phototriode luminous intensity and rear photosensitive three pole
Whether the difference of pipe luminous intensity is less than zero, when difference is less than zero, after microcontroller gives rearview mirror output voltage, rearview mirror to be powered,
Light transmittance can be changed, realize abblendbar function.
The beneficial effects of the invention are as follows：A kind of anti-dazzle driving mirror system and control method are provided, it is anti-with traditional electronics
The photodiode that rearview mirror substantially uses is dazzle the eyes to compare, phototriode has different spectral characteristics, has prodigious
Photoelectric current amplification acts on, and has very high sensitivity；It is yet working when reversing for existing rearview mirror, is causing to drive
The problem of person of sailing lacks the visual field at rear, the circuit system that the present invention designs can when reversing gear automatic temporary close it is anti-dazzle
Purpose function, improves the degree of automation；The microcontroller of use is as micro controller, and volume is smaller, Reliability comparotive is high, conveniently
Flexibly, powerful, three times to the sensor gathered data of phototriode, preset error amount, to the data of acquisition
Validity judged, avoid interference problem present in circuit.
Description of the drawings
Fig. 1 is the control flow chart of one embodiment of the invention.
Specific implementation mode
To more fully understand the present invention, with reference to the accompanying drawings and examples to further description of the present invention.
A kind of anti-dazzle driving mirror system, including micro controller, rearview mirror, preceding phototriode, rear phototriode and control
Circuit processed, micro controller are microcontroller, and rearview mirror is electrochomeric glass, before forward and backward phototriode is respectively arranged on rearview mirror
Afterwards in both ends of the surface, microcontroller is controlled by control circuit and rearview mirror, preceding phototriode, rear phototriode and automobile gear level dress
Device processed is connected.
As shown in Figure 1, when using the system, what whether microcontroller automatic decision vehicle first was hung is reverse gear, works as position
When reverse gear, the voltage that microcontroller is exported to rearview mirror is zero, and rearview mirror cannot change light transmittance because could not be powered,
Without abblendbar function, when vehicle does not hang reverse gear, microcontroller is believed according to the light intensity of forward and backward phototriode transmitted
Number, two phototriodes acquire three times respectively, and microcontroller is compared collected light intensity signal, if after signal value twice
When subtracting the absolute value of first time signal value less than the error amount set, the voltage that microcontroller is zero to rearview mirror output, backsight
Mirror then do not have abblendbar function, when after twice signal value subtract first time signal value absolute value be less than setting error amount
When, whether microcontroller is less than zero by comparing the difference of preceding phototriode luminous intensity and rear phototriode luminous intensity, is on duty
When value is less than zero, after microcontroller gives rearview mirror output voltage, rearview mirror to be powered, light transmittance can be changed, realize abblendbar work(
Energy.
Electronic anti-dazzle mesh rearview mirror is to be mounted with two phototriodes, the two photosensitive three based on monolithic processor controlled
One is mounted on the front of rearview mirror in pole pipe, another is mounted on the back side of rearview mirror, they are primarily to acquisition
The light intensity of automobile front and back.Its operation principle is exactly, if the headlight for the vehicle that back follows closely irradiates after opening
When on to interior rearview mirror, two phototriodes can be input to collected signal in micro controller, then micro-control
Device can according to a pre-set procedure compare the signal in two photosensitive triodes, and can be after automatic decision
Whether the light in face has been better than the light of front.When the difference of the light of two phototriodes is more than a standard of setting
When dazzle, micro controller can provide electric current to rearview mirror automatically at this time, and the rearview mirror after energization can reduce brightness, adjust in this way
After section, so that it may to eliminate affecting for dazzle.
These variations caused by automatic glareproof mirror are to be automatically performed under system control within the very short time
, driver is substantially imperceptible.
Electronic anti-dazzle mesh rearview mirror can have abblendbar function under most of environment, but there is also a deficiencies for it
Place, that is, when vehicle is backed out from garage, since inside garage, the subsequent light of vehicle is stronger, however
The light of front of the host is weaker, and if using the function of automatic anti-glare at this time, rearview mirror will be dimmed, thus can shadow
It rings driver and observes the situation after vehicle.
The automatic anti-glare function when automobile starting, can first judge whether on reverse gear, if in reverse gear
Anti-glare function will not be started, if can just not enter anti-glare flow.
Above is only presently preferred embodiments of the present invention, and of course, the scope of rights of the present invention cannot be limited by this,
Therefore the equivalence changes done according to scope of the present invention patent, still belong to protection scope of the present invention.
Claims (2)
1. a kind of anti-dazzle driving mirror system, which is characterized in that including micro controller, rearview mirror, preceding phototriode, rear photosensitive three
Pole pipe and control circuit, the micro controller are microcontroller, and the rearview mirror is electrochomeric glass, forward and backward photosensitive three pole
Pipe is respectively arranged on the rear and front end face of rearview mirror, the microcontroller by control circuit and rearview mirror, preceding phototriode, after
Phototriode is connected with automobile gear level cartridge controller.
2. using a kind of control method of anti-dazzle driving mirror system described in claim 1, which is characterized in that the microcontroller
What whether automatic decision vehicle was hung first is reverse gear, when positioned at reverse gear, voltage that microcontroller is exported to rearview mirror
It is zero, rearview mirror cannot change light transmittance because could not be powered, and not have abblendbar function, when vehicle does not hang reverse gear, list
Piece machine acquires three times respectively according to the light intensity signal transmitted of forward and backward phototriode, two phototriodes, and microcontroller is to adopting
The light intensity signal collected is compared, if after twice signal value subtract first time signal value absolute value be less than setting error amount
When, microcontroller to rearview mirror output be zero voltage, rearview mirror then do not have abblendbar function, when after twice signal value subtract
When the absolute value of first time signal value is less than the error amount of setting, microcontroller is by comparing preceding phototriode luminous intensity and rear light
Whether the difference of quick triode luminous intensity is less than zero, and when difference is less than zero, microcontroller gives rearview mirror output voltage, rearview mirror logical
After electricity, light transmittance can be changed, realize abblendbar function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810220094.1A CN108501815A (en) | 2018-03-16 | 2018-03-16 | A kind of anti-dazzle driving mirror system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810220094.1A CN108501815A (en) | 2018-03-16 | 2018-03-16 | A kind of anti-dazzle driving mirror system and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108501815A true CN108501815A (en) | 2018-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810220094.1A Pending CN108501815A (en) | 2018-03-16 | 2018-03-16 | A kind of anti-dazzle driving mirror system and control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110466432A (en) * | 2019-09-18 | 2019-11-19 | 宝能汽车有限公司 | The working method of Antiglaring rear mirror, automobile and Antiglaring rear mirror |
| CN110979185A (en) * | 2019-12-19 | 2020-04-10 | 福州京东方光电科技有限公司 | Anti-dazzle device and manufacturing method thereof, rearview mirror and anti-dazzle method |
| CN112677883A (en) * | 2021-01-05 | 2021-04-20 | 爱卓智能科技(上海)有限公司 | Manufacturing method of multi-level color-changing anti-dazzling rearview mirror |
| CN114074609A (en) * | 2020-08-21 | 2022-02-22 | 丰田自动车株式会社 | Vehicle mirror device and vehicle mirror control method |
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| US20090009874A1 (en) * | 2006-03-28 | 2009-01-08 | Rosco Inc. | Vehicle mirror with adjustable reflective properties |
| CN202279049U (en) * | 2011-10-26 | 2012-06-20 | 埃泰克汽车电子(芜湖)有限公司 | Anti-dazzling rearview mirror |
| CN103241182A (en) * | 2013-04-03 | 2013-08-14 | 卢滨洋 | Electronic anti-dazzling automobile inside rear-view mirror |
| CN103344271A (en) * | 2013-07-22 | 2013-10-09 | 中国航空动力机械研究所 | Sensor fault diagnosis device and method and signal acquisition system of sensors |
| WO2014149335A1 (en) * | 2013-03-15 | 2014-09-25 | Gentex Corporation | Low reflectance glare optic |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090009874A1 (en) * | 2006-03-28 | 2009-01-08 | Rosco Inc. | Vehicle mirror with adjustable reflective properties |
| CN202279049U (en) * | 2011-10-26 | 2012-06-20 | 埃泰克汽车电子(芜湖)有限公司 | Anti-dazzling rearview mirror |
| WO2014149335A1 (en) * | 2013-03-15 | 2014-09-25 | Gentex Corporation | Low reflectance glare optic |
| CN103241182A (en) * | 2013-04-03 | 2013-08-14 | 卢滨洋 | Electronic anti-dazzling automobile inside rear-view mirror |
| CN103344271A (en) * | 2013-07-22 | 2013-10-09 | 中国航空动力机械研究所 | Sensor fault diagnosis device and method and signal acquisition system of sensors |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110466432A (en) * | 2019-09-18 | 2019-11-19 | 宝能汽车有限公司 | The working method of Antiglaring rear mirror, automobile and Antiglaring rear mirror |
| CN110979185A (en) * | 2019-12-19 | 2020-04-10 | 福州京东方光电科技有限公司 | Anti-dazzle device and manufacturing method thereof, rearview mirror and anti-dazzle method |
| CN110979185B (en) * | 2019-12-19 | 2023-04-07 | 福州京东方光电科技有限公司 | Anti-dazzle device and manufacturing method thereof, rearview mirror and anti-dazzle method |
| CN114074609A (en) * | 2020-08-21 | 2022-02-22 | 丰田自动车株式会社 | Vehicle mirror device and vehicle mirror control method |
| CN114074609B (en) * | 2020-08-21 | 2023-11-07 | 丰田自动车株式会社 | Vehicle mirror device and vehicle mirror control method |
| CN112677883A (en) * | 2021-01-05 | 2021-04-20 | 爱卓智能科技(上海)有限公司 | Manufacturing method of multi-level color-changing anti-dazzling rearview mirror |
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Application publication date: 20180907 |