CN104842880B - Vehicle rear-view mirror and its control method and the vehicles to light intensity - Google Patents
Vehicle rear-view mirror and its control method and the vehicles to light intensity Download PDFInfo
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- CN104842880B CN104842880B CN201510262848.6A CN201510262848A CN104842880B CN 104842880 B CN104842880 B CN 104842880B CN 201510262848 A CN201510262848 A CN 201510262848A CN 104842880 B CN104842880 B CN 104842880B
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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
- B60R1/088—Anti-glare mirrors, e.g. "day-night" mirrors using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
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Abstract
The present invention provides a kind of vehicle rear-view mirror and its control method and the vehicles to light intensity.The vehicle rear-view mirror includes light intensity regulating element, for adjusting the intensity of incident ray, with the generation of anti-dazzle, also include photoinduction element and control unit, photoinduction element is correspondingly arranged at the light light incident side of light intensity regulating element, and photoinduction element is incident to the intensity of the light of light intensity regulating element for sensing；The intensity of the light that the change of light intensity of the control unit for being sensed in different time according to photoinduction element controls light intensity regulating element on incident is adjusted.Not only structure is greatly simplified the vehicle rear-view mirror, but also be avoided that when front light and rear light are while when all very strong, light intensity regulating element cannot be opened the situation of regulatory function and occur, situation about cannot open so as to avoid vehicle rear-view mirror anti-dazzle function in these cases occurs, and then makes the anti-dazzle function of vehicle rear-view mirror sensitiveer and intelligent.
Description
Technical field
The present invention relates to display technology field, in particular it relates to a kind of vehicle rear-view mirror and its regulation to light intensity
Method and the vehicles.
Background technology
A very important safety aid facility of the rearview mirror as driver, its effect are the cars after observing car
Condition, but if the big light irradiation of car below is run in driving at night, may produce strong reflective, cause driver dazzling
(dazzling), affects driver safety to drive.Therefore, it has been developed that the rearview mirror with automatic anti-dazzle function, and it is outstanding among these
So that with based on electrochromic glareproof mirror, electrochromism glareproof mirror is because the advantages of which is low in energy consumption, discoloration rate is fast
And be widely applied.
The structure of the automatic glareproof mirror of existing electrochromism is as shown in figure 1, it will be noted from fig. 1 that it is mainly by electricity
Mutagens color device 4, the photo-sensing device positioned at device front and back and control circuit 6 are constituted.During work, by controlling electricity
Comparator in road 6, the light intensity value that the light intensity value that optical inductor 51 is sensed after comparing is sensed with front optical inductor 52
Difference whether be more than threshold value, so as to decide whether to 4 output voltage of electrochromic device, and then decide whether to open anti-dazzle work(
Energy.Its operation algorithm flow chart is as shown in Figure 2.
But this structure needs former and later two optical inductors, structure is more complicated.Meanwhile, when light intensity below it is very strong,
When needing to open anti-dazzle function, if the light intensity before now is also very strong, difference is not very big in front and back, when less than threshold value,
System will not automatically turn on anti-dazzle function, dazzling so as to cause, and affect safety.
The content of the invention
The present invention is for above-mentioned technical problem present in prior art, there is provided a kind of vehicle rear-view mirror and its strong to light
The control method and the vehicles of degree.The photoinduction element of the vehicle rear-view mirror is only correspondingly arranged at the one of light intensity regulating element
Side, enormously simplify the structure of vehicle rear-view mirror；Meanwhile, the vehicle rear-view mirror is also avoided that current side's light and rear light
When simultaneously all very strong, light intensity regulating element cannot be opened the situation of regulatory function and occur, so as to avoid vehicle rear-view mirror upper
The situation that anti-dazzle function in the case of stating cannot be opened occurs, and then makes the anti-dazzle function of vehicle rear-view mirror sensitiveer and intelligent
Change.
The present invention provides a kind of vehicle rear-view mirror, including light intensity regulating element, for adjusting the intensity of incident ray, in case
The generation of dazzle, also including photoinduction element and control unit, the photoinduction element is correspondingly arranged at the light intensity regulating unit
The light light incident side of part, the photoinduction element are incident to the intensity of the light of the light intensity regulating element for sensing；It is described
The change of light intensity of the control unit for being sensed in different time according to the photoinduction element controls the light and emphasizes
The intensity of the light of section element on incident is adjusted.
Preferably, described control unit includes memory module, the first comparison module and control module,
The photoinduction element is once incident to the light of the light intensity regulating element for sensing at interval of preset time period
The intensity of line；
The memory module is used to store the light for being incident to the light intensity regulating element that the photoinduction element is sensed
The intensity level of line, is additionally operable to store first threshold and Second Threshold；
First comparison module for the light intensity regulating element do not start adjust before, before the photoinduction element
N the second light intensity value that the first light intensity value that one moment sensed is sensed with priority in follow-up time is carried out respectively
Compare, and judge whether n the second light intensity value is all higher than described first with the difference of the first light intensity value
Threshold value；It is additionally operable to when judged result is to be, then judges whether n the second light intensity value is all higher than second threshold
Value, wherein, 1≤n≤10, and n is integer；
When the control module for being in the result for judging twice is, the light intensity regulating element on incident is controlled
The intensity of light is adjusted.
Preferably, described control unit also includes the second comparison module, and second comparison module is in the light intensity
After regulating element starts to adjust, in the 3rd light intensity value that the photoinduction element previous moment is sensed and follow-up time
M the 4th light intensity value for successively sensing is compared respectively, and judges that the 3rd light intensity value is described with m
Whether the difference of the 4th light intensity value is all higher than the first threshold；It is additionally operable to when judged result is to be, then judges m institute
State whether the 4th light intensity value is respectively less than the Second Threshold, wherein, 1≤m≤10, and m is integer；
The control module be additionally operable to the result for arbitrarily once judging as it is no when, control the light intensity regulating element and continue
Keep being adjusted the intensity of incident light；And the result for judging twice be when, control light intensity regulating unit
Part stops being adjusted the intensity of incident light.
Preferably, the span of the first threshold is 8-10cd/cm2, the span of the Second Threshold is 13-
17cd/cm2。
Preferably, the light intensity regulating element includes electrochromic device, suspended particle device or polymer dispersion liquid
Brilliant device.
Preferably, described control unit can control that the electrochromic device is powered or non-powered, with to incident light
Intensity adjustments or do not adjust；Described control unit can control the size of the electrochromic device power-up, with to incident light
The intensity of line carries out the regulation of size.
Preferably, described control unit can control the suspended particle device and the polymer-dispersed liquid crystal device adds
It is electric or not powered, do not adjust or adjust with the intensity to incident light；Described control unit can control the suspended particles device
Part and the size of polymer-dispersed liquid crystal device power-up, carry out little big regulation with the intensity to incident light.
The present invention also provides a kind of vehicles, including above-mentioned vehicle rear-view mirror.
The present invention also provides a kind of control method of above-mentioned vehicle rear-view mirror to light intensity, including：Photoinduction element sense
The intensity of the light of light intensity regulating element should be incident to；Control unit is sensed in different time according to the photoinduction element
The intensity of the light of the change control light intensity regulating element on incident of light intensity is adjusted.
Preferably, the photoinduction element is once incident to the light intensity regulating element at interval of preset time period sensing
The intensity of light；
The change control light of the light intensity that described control unit is sensed in different time according to the photoinduction element
Emphasize that the intensity of the light for saving element on incident is adjusted specifically including：
Before the light intensity regulating element does not start to adjust, the first light that the photoinduction element previous moment is sensed
N the second light intensity value successively sensed in line strength value and follow-up time is compared respectively, and judges n described the
Whether two light intensity values are all higher than first threshold with the difference of the first light intensity value, when judged result is no, institute
The intensity for stating the light of light intensity regulating element on incident is not adjusted；When judged result is to be, then judge n described second
Whether light intensity value is all higher than Second Threshold, when judged result is no, the light of the light intensity regulating element on incident
Intensity is not adjusted；When judged result is to be, the intensity of the light of the light intensity regulating element on incident is adjusted.
Preferably, the change of the light intensity that described control unit is sensed in different time according to the photoinduction element
The intensity of the light of control light intensity regulating element on incident is adjusted specifically also including：
After the light intensity regulating element starts to adjust, the 3rd light that the photoinduction element previous moment is sensed
M the 4th light intensity value that intensity level is sensed with priority in follow-up time is compared respectively, and judges the 3rd light
Whether line strength value is all higher than the first threshold with the difference of m the 4th light intensity value, when judged result is no,
The light intensity regulating element keeps being adjusted the intensity of incident light；When judged result is to be, then judge described in m
Whether the 4th light intensity value is respectively less than the Second Threshold, and when judged result is no, the light intensity regulating element keeps right
The intensity of incident light is adjusted；When judged result is to be, the light intensity regulating element stops to incident light
Intensity is adjusted.
Beneficial effects of the present invention：Vehicle rear-view mirror provided by the present invention, as photoinduction element is only correspondingly arranged at
The side of light intensity regulating element, so compared to prior art, enormously simplify the structure of vehicle rear-view mirror；Meanwhile, this is automobile-used
The change control light intensity regulating element on incident light of the light intensity that rearview mirror is sensed in different time according to photoinduction element
The intensity of line is adjusted, and can avoid front light and rear light while when all very strong, light intensity regulating element cannot be opened
The situation of regulatory function occurs, and situation about cannot open so as to avoid vehicle rear-view mirror anti-dazzle function in these cases
It is existing, and then make the anti-dazzle function of vehicle rear-view mirror sensitiveer and intelligent.
The vehicles provided by the present invention, by using above-mentioned vehicle rear-view mirror, improve the safety of the vehicles
Performance.
Description of the drawings
Fig. 1 is the theory diagram of vehicle rear-view mirror in prior art；
Fig. 2 is the anti-dazzle workflow diagram of vehicle rear-view mirror in Fig. 1；
Fig. 3 is the theory diagram of vehicle rear-view mirror in the embodiment of the present invention 1；
The flow chart that Fig. 4 is adjusted to light intensity for vehicle rear-view mirror in Fig. 3；
Fig. 5 is the particular flow sheet of step S2 in Fig. 4.
Description of reference numerals therein：
1. light intensity regulating element；2. photoinduction element；3. control unit；31. memory modules；32. first comparison modules；
33. control modules；34. second comparison modules；4. electrochromic device；Optical inductor after 51.；Optical inductor before 52.；6. control
Circuit.
Specific embodiment
To make those skilled in the art more fully understand technical scheme, with reference to the accompanying drawings and detailed description
Control method and the vehicles to a kind of vehicle rear-view mirror provided by the present invention and its to light intensity is made further in detail
Description.
Embodiment 1：
The present embodiment provides a kind of vehicle rear-view mirror, as shown in figure 3, including light intensity regulating element 1, for adjusting incident illumination
The intensity of line, with the generation of anti-dazzle, also including photoinduction element 2 and control unit 3, photoinduction element 2 is correspondingly arranged at light
The light light incident side of strong regulating element 1, photoinduction element 2 are incident to the intensity of the light of light intensity regulating element 1 for sensing；Control
The change control light intensity regulating element 1 pair of light intensity of the unit processed 3 for being sensed in different time according to photoinduction element 2
The intensity of incident light is adjusted.
Compared to prior art, the photoinduction element 3 in the vehicle rear-view mirror is only correspondingly arranged at light intensity regulating element 1
Side, enormously simplify the structure of vehicle rear-view mirror；Meanwhile, the vehicle rear-view mirror is according to photoinduction element 2 in different time sense
The change control light intensity regulating element 1 of the light intensity that should be arrived is adjusted to the intensity of incident ray, even if the Vehicular rearview
The front light and rear light of mirror is all very strong in synchronization, it is also possible to sensed in different time by photoinduction element 2
Light intensity change controlling regulation of the light intensity regulating element 1 to incident ray intensity so that the vehicle rear-view mirror is sent out
Anti-dazzle function is waved, and then is avoided when front light and rear light are while when all very strong, light intensity regulating element 1 cannot open tune
The situation of section function occurs, and makes the anti-dazzle function of vehicle rear-view mirror sensitiveer and intelligent.
In the present embodiment, control unit 3 includes memory module 31, the first comparison module 32 and control module 33, photoinduction
Element 2 at interval of preset time period sensing be once incident to light intensity regulating element 1 light intensity.Memory module 31 is used
The intensity level of the light for being incident to light intensity regulating element 1 sensed in storage photoinduction element 2, is additionally operable to store first threshold
And Second Threshold.First comparison module 32 for light intensity regulating element 1 do not start adjust before, when will be photoinduction element 2 previous
Quarter, the first light intensity value for sensing compared respectively with n the second light intensity value successively sensing in follow-up time
Compared with, and judge whether n the second light intensity value and the difference of the first light intensity value are all higher than first threshold；It is additionally operable to sentencing
When disconnected result is to be, then judge whether n the second light intensity value is all higher than Second Threshold, wherein, 1≤n≤10, and n is whole
Number.When control module 33 for being in the result for judging twice is, the intensity of light intensity regulating 1 pair of incident light of element is controlled
It is adjusted.
The setting of 32 control module 33 of the first comparison module, can make the light intensity regulating function of light intensity regulating element 1 automatically simultaneously
In time open, the anti-dazzle function of vehicle rear-view mirror can be made automatic and opened in good time, so that the light of vehicle rear-view mirror is emphasized
Section function is more accurately and intelligent, and then makes vehicle rear-view mirror preferably play in good time anti-dazzle function.The vehicle rear-view mirror,
Even if its front light and rear light are all very strong in the same time, it is also possible to by comparing and judging the n in the time the
Whether two light intensity values have been above first threshold and n the second light with the difference of the first light intensity value of previous moment
Whether intensity level has been above Second Threshold, determines whether to carry out intensity adjustments to the incident ray of a time, so
Can avoid when front light and rear light are while when all very strong, light intensity regulating element 1 cannot open the situation of regulatory function
Occur.
Wherein, the setting of n the second light intensity value, more accurately can be confirmed whether to need to open light intensity regulating
The light intensity regulating function of element 1, makes the light intensity regulating function of light intensity regulating element 1 not open by mistake and opens, so that vehicle rear-view mirror
Anti-dazzle function it is sensitiveer and intelligent.The value of n is inversely proportional to the length of preset time period, i.e., preset time period is longer,
Then the value of n is less；Preset time period is shorter, then the value of n is bigger.In the present embodiment, preset time period is 50-200 milliseconds,
The value of n is 5.
In the present embodiment, the span of first threshold is 8-10cd/cm2, the span of Second Threshold is 13-
17cd/cm2.First threshold and Second Threshold are to need two pre-set values according to the reality of vehicle rear-view mirror is anti-dazzle,
As in the present embodiment, first threshold is 10cd/cm2, Second Threshold is 15cd/cm2.The setting of first threshold and Second Threshold, energy
Enough make user according to the sensation of oneself eye by the reality of vehicle rear-view mirror anti-dazzle function point analysis to making oneself to feel more comfortable
Degree.
It should be noted that first threshold and Second Threshold are not limited only to above-mentioned span, first threshold
Can arbitrarily be set according to the degree of being comfortable on of oneself by user with Second Threshold.
In the present embodiment, control unit 3 also includes the second comparison module 34, and the second comparison module 34 is in light intensity regulating
After element 1 starts to adjust, successively feel in the 3rd light intensity value that 2 previous moment of photoinduction element is sensed and follow-up time
M the 4th light intensity value that should be arrived is compared respectively, and judges the 3rd light intensity value with m the 4th light intensity value
Whether difference is all higher than first threshold；It is additionally operable to when judged result is to be, then judges whether m the 4th light intensity value be little
In Second Threshold, wherein, 1≤m≤10, and m is integer.It is no that control module 33 is additionally operable in the result for arbitrarily once judging
When, control light intensity regulating element 1 and continue to keep being adjusted the intensity of incident light；And be in the result for judging twice
When being, control light intensity regulating element 1 and stop being adjusted the intensity of incident light.
The setting of the second comparison module 34 and control module 33, can make the light intensity regulating function of light intensity regulating element 1 automatic
And in time close, the anti-dazzle function of vehicle rear-view mirror can be made automatic and closed in good time, so that the light intensity of vehicle rear-view mirror
Regulatory function is more accurately and intelligent, and then makes vehicle rear-view mirror preferably play in good time anti-dazzle function.
Wherein, the setting of m the 4th light intensity value, more accurately can be confirmed whether to need to close light intensity regulating unit
The light intensity regulating function of part 1, makes the light intensity regulating function of light intensity regulating element 1 not close by mistake, so that vehicle rear-view mirror
Anti-dazzle function is sensitiveer and intelligent.The value of m is inversely proportional to the length of preset time period, i.e., preset time period is longer, then m
Value it is less；Preset time period is shorter, then the value of m is bigger.In the present embodiment, preset time period is 50-200 milliseconds, m's
Value is 5.
In the present embodiment, light intensity regulating element 1 adopts electrochromic device.Control unit 3 can control electrochromic device
It is powered or non-powered, to the intensity adjustments of incident light or not adjust.That is, in power-up, which is internal for electrochromic device
There is color change in electrochromic material, incident ray is partially absorbed, so that electrochromic device is reflected into human eye
Light intensity substantially reduce, and then make vehicle rear-view mirror play anti-dazzle effect.Electrochromic device when not powered, in which
The electrochromic material in portion will not occur color change, also incident ray will not be absorbed, therefore electrochromic device is anti-
The light intensity for injecting human eye will not also change.
Wherein, control unit 3 can control the size of electrochromic device power-up, be carried out greatly with the intensity to incident light
Little regulation.I.e. control unit 3 is applied to the size of the voltage on electrochromic device by control, makes electrochromic device pair
There is either large or small change in the degree of absorption of incident ray, so as to the intensity to incident ray carries out the regulation of size.
As electrochromic device is used as technology of the anti-dazzle vehicle rear-view mirror for comparative maturity, no longer it is described in detail herein.
It should be noted that light intensity regulating element 1 can also adopt suspended particle device or polymer-dispersed liquid crystal device
The device that part etc. can be adjusted to the intensity of light.Control unit 3 can control suspended particle device and polymer dispersion
Liquid crystal device is powered or non-powered, is not adjusted or is adjusted with the intensity to incident light.Suspended particle device and polymer point
Scattered type liquid crystal device is identical to the Principles of Regulation of incident ray intensity, i.e., in power-up, the suspended particles in suspended particle device
Regularly arranged, the liquid crystal particle in polymer-dispersed liquid crystal device is regularly arranged, and this causes suspended particle device and polymer
Dispersion type liquid crystal device all transparent state in power-up, will not have any impact to the intensity of incident ray, so the two
The intensity of incident light is not adjusted in power-up.When not powered, the suspended particles in suspended particle device are irregularly arranged
Row, the liquid crystal particle irregular alignment in polymer-dispersed liquid crystal device, this causes suspended particle device and polymer dispersion
Type liquid crystal device is all in opaque or translucent when not powered, and this can make incident ray that scattering or diffuse-reflectance occur, from
And the intensity of incident ray is adjusted.
Wherein, control unit 3 can control the size of suspended particle device and the power-up of polymer-dispersed liquid crystal device, with right
The intensity of incident light carries out little big regulation.Due to suspended particle device and polymer-dispersed liquid crystal device power up it is big
It is little to be inversely proportional to its influence degree to incident ray, it is possible to by suspended particle device and polymer-dispersed liquid crystal
Device powers up the control of size, carries out different degrees of regulation to incident ray intensity so as to control which, and then makes Vehicular rearview
The light intensity regulating function of mirror is more accurately and intelligent.
The regulation of suspended particle device and polymer-dispersed liquid crystal device to light intensity is the technology of comparative maturity,
No longer it is described in detail herein.
Based on the said structure of vehicle rear-view mirror, the present embodiment also provides a kind of tune of vehicle rear-view mirror to light intensity
Section method, as shown in Figure 4 and Figure 5, including：Step S1：Photoinduction element sensing is incident to the strong of the light of light intensity regulating element
Degree.
In this step, photoinduction element is once incident to the light of light intensity regulating element at interval of preset time period sensing
Intensity.
Step S2：The change control light intensity of the light intensity that control unit is sensed in different time according to photoinduction element
Regulating element is adjusted to the intensity of incident light.
The step is specifically included：Step S21：Before light intensity regulating element does not start to adjust, when will be photoinduction element previous
Quarter, the first light intensity value for sensing compared respectively with n the second light intensity value successively sensing in follow-up time
Compared with, and judge whether n the second light intensity value and the difference of the first light intensity value are all higher than first threshold, work as judged result
For it is no when, execution step S22：The intensity of the light of light intensity regulating element on incident is not adjusted；When judged result is to be,
Execution step S23：Judge whether n the second light intensity value is all higher than Second Threshold again, when judged result is no, perform step
Rapid S22：The intensity of the light of light intensity regulating element on incident is not adjusted；When judged result is to be, execution step S24：
The intensity of the light of light intensity regulating element on incident is adjusted.
Step S2 specifically also includes after execution step S24：Step S25：After light intensity regulating element starts to adjust, will
M the 4th light that the 3rd light intensity value that photoinduction element previous moment is sensed is sensed with priority in follow-up time
Intensity level is compared respectively, and judges whether the difference of the 3rd light intensity value and m the 4th light intensity value is all higher than the
One threshold value, when judged result is no, execution step S26：Light intensity regulating element keeps adjusting the intensity of incident light
Section；When judged result is to be, execution step S27：Judge whether m the 4th light intensity value is respectively less than Second Threshold again, when
When judged result is no, execution step S26：Light intensity regulating element keeps being adjusted the intensity of incident light；Work as judgement
When being as a result to be, execution step S28：Light intensity regulating element stops being adjusted the intensity of incident light.
The multilevel iudge that the intensity for being incident to the light of light intensity regulating element gone round and begun again according to above-mentioned steps and
Control and regulation, so that the anti-dazzle function of the vehicle rear-view mirror is sensitiveer and intelligent；Simultaneously, moreover it is possible to make the vehicle rear-view mirror
In its front light and simultaneously all very strong rear light, the intensity that can equally open light intensity regulating element on incident light is entered
Row timely adjustment, makes the vehicle rear-view mirror normally play its anti-dazzle function.
The beneficial effect of embodiment 1：Vehicle rear-view mirror provided in embodiment 1, sets as photoinduction element is only corresponded to
Put in the side of light intensity regulating element, so compared to prior art, enormously simplify the structure of vehicle rear-view mirror；Meanwhile, should
The change of the light intensity that vehicle rear-view mirror is sensed in different time according to photoinduction element controls light intensity regulating element to entering
The intensity for penetrating light is adjusted, and can avoid front light and rear light while when all very strong, light intensity regulating element cannot
The situation for opening regulatory function occurs, so as to avoid the feelings that vehicle rear-view mirror anti-dazzle function in these cases cannot be opened
Condition occurs, and then makes the anti-dazzle function of vehicle rear-view mirror sensitiveer and intelligent.
Embodiment 2：
The present embodiment provides a kind of vehicles, including the vehicle rear-view mirror in embodiment 1.
By using the vehicle rear-view mirror in embodiment 1, improve the security performance of the vehicles.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the exemplary enforcement for adopting
Mode, but the invention is not limited in this.For those skilled in the art, without departing from the present invention's
In the case of spirit and essence, various modifications and improvement can be made, these modifications and improvement are also considered as protection model of the invention
Enclose.
Claims (9)
1. a kind of vehicle rear-view mirror, including light intensity regulating element, for adjusting the intensity of incident ray, with the generation of anti-dazzle,
Characterized in that, also including photoinduction element and control unit, the photoinduction element is correspondingly arranged at the light intensity regulating unit
The light light incident side of part, the photoinduction element are incident to the intensity of the light of the light intensity regulating element for sensing；It is described
The change of light intensity of the control unit for being sensed in different time according to the photoinduction element controls the light and emphasizes
The intensity of the light of section element on incident is adjusted；
Described control unit includes memory module, the first comparison module and control module,
The photoinduction element for being once incident to the light of the light intensity regulating element at interval of preset time period sensing
Intensity；
The memory module is used to store the light for being incident to the light intensity regulating element that the photoinduction element is sensed
Intensity level, is additionally operable to store first threshold and Second Threshold；
First comparison module for the light intensity regulating element do not start adjust before, when will be the photoinduction element previous
Quarter, the first light intensity value for sensing compared respectively with n the second light intensity value successively sensing in follow-up time
Compared with, and judge whether n the second light intensity value is all higher than first threshold with the difference of the first light intensity value
Value；It is additionally operable to when judged result is to be, then judges whether n the second light intensity value is all higher than the Second Threshold,
Wherein, 1≤n≤10, and n is integer；
When the control module for being in the result for judging twice is, the light of the light intensity regulating element on incident is controlled
Intensity be adjusted.
2. vehicle rear-view mirror according to claim 1, it is characterised in that described control unit also compares mould including second
Block, second comparison module for the light intensity regulating element start adjust after, by the photoinduction element previous moment
M the 4th light intensity value that the 3rd light intensity value for sensing is sensed with priority in follow-up time is compared respectively,
And judge whether the 3rd light intensity value and the difference of m the 4th light intensity value are all higher than the first threshold；
It is additionally operable to when judged result is to be, then judges whether m the 4th light intensity value is respectively less than the Second Threshold, its
In, 1≤m≤10, and m is integer；
The control module be additionally operable to the result for arbitrarily once judging as it is no when, control the light intensity regulating element and continue to keep
The intensity of incident light is adjusted；And the result for judging twice be when, control the light intensity regulating element and stop
Only the intensity of incident light is adjusted.
3. vehicle rear-view mirror according to claim 1 and 2, it is characterised in that the span of the first threshold is 8-
10cd/cm2, the span of the Second Threshold is 13-17cd/cm2。
4. vehicle rear-view mirror according to claim 1 and 2, it is characterised in that the light intensity regulating element includes electroluminescent change
Color device, suspended particle device or polymer-dispersed liquid crystal device.
5. vehicle rear-view mirror according to claim 4, it is characterised in that described control unit can control the electrochromism
Device is powered or non-powered, to the intensity adjustments of incident light or not adjust；Described control unit can control described electroluminescent
The size of Electrochromic device power-up, carries out the regulation of size with the intensity to incident light.
6. vehicle rear-view mirror according to claim 4, it is characterised in that described control unit can control the suspended particles
Device and the polymer-dispersed liquid crystal device are powered or non-powered, are not adjusted or are adjusted with the intensity to incident light；
Described control unit can control the size of the suspended particle device and polymer-dispersed liquid crystal device power-up, with to entering
The intensity of the light penetrated carries out little big regulation.
7. a kind of vehicles, it is characterised in that including the vehicle rear-view mirror described in claim 1-6 any one.
8. control method of a kind of vehicle rear-view mirror as described in claim 1-6 any one to light intensity, its feature exist
In, including：Photoinduction element sensing is incident to the intensity of the light of light intensity regulating element；Control unit is according to photoinduction unit
The intensity of the light of the change control light intensity regulating element on incident of the light intensity that part is sensed in different time is adjusted；
The photoinduction element is once incident to the intensity of the light of the light intensity regulating element at interval of preset time period sensing；
The change control light of the light intensity that described control unit is sensed in different time according to the photoinduction element is emphasized
The intensity of the light of section element on incident is adjusted specifically including：
Before the light intensity regulating element does not start to adjust, the first light that the photoinduction element previous moment is sensed is strong
N the second light intensity value that angle value is sensed with priority in follow-up time is compared respectively, and judges n second light
Whether line strength value is all higher than first threshold with the difference of the first light intensity value, when judged result is no, the light
Emphasize that the intensity of the light for saving element on incident is not adjusted；When judged result is to be, then judge n second light
Whether intensity level is all higher than Second Threshold, when judged result is no, the intensity of the light of the light intensity regulating element on incident
It is not adjusted；When judged result is to be, the intensity of the light of the light intensity regulating element on incident is adjusted.
9. control method according to claim 8, it is characterised in that described control unit exists according to the photoinduction element
The intensity of the light of the change control light intensity regulating element on incident of the light intensity that different time is sensed is adjusted specifically
Also include：
After the light intensity regulating element starts to adjust, the 3rd light intensity that the photoinduction element previous moment is sensed
M the 4th light intensity value that value is sensed with priority in follow-up time is compared respectively, and judges that the 3rd light is strong
Whether angle value is all higher than the first threshold with the difference of m the 4th light intensity value, when judged result is no, described
Light intensity regulating element keeps being adjusted the intensity of incident light；When judged result is to be, then judge m the described 4th
Whether light intensity value is respectively less than the Second Threshold, and when judged result is no, the light intensity regulating element is kept to incidence
The intensity of light be adjusted；When judged result is to be, the light intensity regulating element stops the intensity to incident light
It is adjusted.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510262848.6A CN104842880B (en) | 2015-05-21 | 2015-05-21 | Vehicle rear-view mirror and its control method and the vehicles to light intensity |
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| CN201510262848.6A CN104842880B (en) | 2015-05-21 | 2015-05-21 | Vehicle rear-view mirror and its control method and the vehicles to light intensity |
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| CN104842880B true CN104842880B (en) | 2017-04-05 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106143316A (en) * | 2016-02-18 | 2016-11-23 | 孟玲 | Automobile rearview mirror with discoloration and preparation method thereof |
| CN105867042B (en) * | 2016-06-27 | 2019-04-02 | 京东方科技集团股份有限公司 | A kind of intelligence reflective regulation device, its adjusting method and glareproof mirror |
| CN107215278A (en) * | 2017-05-31 | 2017-09-29 | 苏州鑫河镜业有限公司 | A kind of intelligent rearview mirror and its method of work with light regulatory function |
| CN111845568B (en) * | 2020-07-24 | 2021-11-09 | 光羿智能科技(苏州)有限公司 | Anti-dazzling rearview mirror |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19747897A1 (en) * | 1997-10-30 | 1999-05-27 | Bayer Ag | Automatically dimming mirror system for motor vehicles |
| TW557266B (en) * | 2002-11-21 | 2003-10-11 | Exon Science Inc | Outdoor vehicle and reflectivity control method of same |
| ES2232319B1 (en) * | 2004-10-15 | 2006-08-16 | Fico Mirrors, S.A. | METHOD OF CONTROL OF AN ELECTROCHROMIC MIRROR AND ELECTROCHROMICAL SYSTEM, APPLICABLE TO A MOTOR VEHICLE. |
| CN201484293U (en) * | 2009-08-14 | 2010-05-26 | 比亚迪股份有限公司 | Electrochromic automobile rearview mirror |
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