CN104842880A - Vehicular rearview mirror, light intensity adjusting method of vehicular rearview mirror, and vehicle - Google Patents
Vehicular rearview mirror, light intensity adjusting method of vehicular rearview mirror, and vehicle Download PDFInfo
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- CN104842880A CN104842880A CN201510262848.6A CN201510262848A CN104842880A CN 104842880 A CN104842880 A CN 104842880A CN 201510262848 A CN201510262848 A CN 201510262848A CN 104842880 A CN104842880 A CN 104842880A
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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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- Crystallography & Structural Chemistry (AREA)
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- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
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Abstract
The invention provides a vehicular rearview mirror, a light intensity adjusting method of the vehicular rearview mirror, and a vehicle. The vehicular rearview mirror comprises a light intensity adjusting element, a light sensing element and a control unit; the light intensity adjusting element is used for adjusting intensity of incoming light to avoid dazzling light. The light sensing element is correspondingly disposed on the light incoming side of the light intensity adjusting element. The light sensing element is used for sensing the intensity of light entering the light intensity adjusting element. The control unit is used for controlling the light intensity adjusting element to adjust the intensity of incoming light according to changes in light intensity sensed by the light sensing element at different time. The structure of the vehicular rearview mirror is greatly simplified; the fact that when both light from front and rear are strong, the adjusting function of the light intensity adjusting element is unable to be enabled is avoided, thus the anti-dazzling function of the vehicular rearview mirror under the fact above is unable to be enabled is avoided, and the anti-dazzling function of the vehicular rearview mirror is more sensitive and intelligent.
Description
Technical field
The present invention relates to technique of display field, particularly, relate to a kind of vehicle rear-view mirror and to the control method of light intensity and the vehicle.
Background technology
Back mirror is as a very important safety aid facility of automobile driver, its effect is the vehicle condition after observing car, if but the large light irradiation of car is below run into when night travel, may produce strong reflective, cause driver's dazzling (dazzling), affect driver safety and drive.Therefore, people have developed the back mirror with automatic anti-dazzle function, and this is wherein especially to have electrochromic anti-dazzle rear view mirror, and electrochromism anti-dazzle rear view mirror is applied widely because of advantages such as it are low in energy consumption, discoloration rate is fast.
As shown in Figure 1, as can see from Figure 1, it forms primarily of electrochromic device 4, the photo-sensing device being positioned at device front and rear and control circuit 6 structure of the automatic anti-dazzle rear view mirror of existing electrochromism.During work, by the comparator in control circuit 6, whether whether the difference of the light intensity value that relatively, optical inductor 51 senses and the light intensity value that front optical inductor 52 senses is greater than threshold value, thus determine to electrochromic device 4 output voltage, and then determines whether open anti-dazzle function.Its operation algorithm diagram of circuit as shown in Figure 2.
But this structure needs former and later two optical inductors, complicated structure.Meanwhile, when light intensity is below very strong, when needing to open anti-dazzle function, if the light intensity is now also very strong, front and back difference is not very large, and when being less than threshold value, system can not open anti-dazzle function automatically, thus causes dazzling, affects safety.
Summary of the invention
The present invention is directed to the above-mentioned technical matters existed in prior art, provide a kind of vehicle rear-view mirror and to the control method of light intensity and the vehicle.The photoinduction element only corresponding side being arranged on light intensity regulating element of this vehicle rear-view mirror, enormously simplify the structure of vehicle rear-view mirror; Simultaneously, this vehicle rear-view mirror can also be avoided when front light and rear light are simultaneously all very strong, the situation that light intensity regulating element cannot open regulatory function occurs, thus avoid the situation that vehicle rear-view mirror anti-dazzle function in these cases cannot open and occur, and then make the anti-dazzle function of vehicle rear-view mirror sensitiveer and intelligent.
The invention provides a kind of vehicle rear-view mirror, comprise light intensity regulating element, for regulating the intensity of incident ray, with the generation of anti-dazzle, also comprise photoinduction element and control unit, described photoinduction element correspondence is arranged on the light side of described light intensity regulating element, and described photoinduction element is for responding to the intensity of the light being incident to described light intensity regulating element; The intensity that the change that described control unit is used for the light intensity sensed at different time according to described photoinduction element controls the light of described light intensity regulating element on incident regulates.
Preferably, described control unit comprises memory module, the first comparison module and control module,
Described photoinduction element is used for the intensity being once incident to the light of described light intensity regulating element at interval of preset time period induction;
The strength rating being incident to the light of described light intensity regulating element that described memory module senses for storing described photoinduction element, also for storing first threshold and Second Threshold;
Described first comparison module is used for before described light intensity regulating element does not start adjustment, n the second light intensity value successively sensed in the first light intensity value described photoinduction element previous moment sensed and follow-up time compares respectively, and judges whether the difference of n described second light intensity value and described first light intensity value is all greater than described first threshold; Also for when judged result is for being, then judge whether n described second light intensity value is all greater than described Second Threshold, wherein, 1≤n≤10, and n is integer;
When described control module for being in the result of twice judgement is, the intensity controlling the light of described light intensity regulating element on incident regulates.
Preferably, described control unit also comprises the second comparison module, described second comparison module is used for after described light intensity regulating element starts adjustment, m the 4th light intensity value successively sensed in the 3rd light intensity value described photoinduction element previous moment sensed and follow-up time compares respectively, and judges whether the difference of the individual described 4th light intensity value of described 3rd light intensity value and m is all greater than described first threshold; Also for when judged result is for being, then judge whether m described 4th light intensity value is all less than described Second Threshold, wherein, 1≤m≤10, and m is integer;
Described control module, also for when the result once judged arbitrarily is no, controls described light intensity regulating element and continues to keep regulating the intensity of the light of incidence; And the result of twice judgement be time, control described light intensity regulating element stop the intensity of the light of incidence is regulated.
Preferably, the span of described first threshold is 8-10cd/cm
2, the span of described Second Threshold is 13-17cd/cm
2.
Preferably, described light intensity regulating element comprises electrochromic device, suspended particle device or polymer-dispersed liquid crystal device.
Preferably, described control unit can control described electrochromic device and power up or do not power up, with the intensity adjustment of the light to incidence or do not regulate; Described control unit can control the size that described electrochromic device powers up, and carries out the adjustment of size with the intensity of the light to incidence.
Preferably, described control unit can control described suspended particle device and described polymer-dispersed liquid crystal device powers up or do not power up, and does not regulate or regulate with the intensity of the light to incidence; Described control unit can control the size that described suspended particle device and described polymer-dispersed liquid crystal device power up, and carries out adjustment little greatly with the intensity of the light to incidence.
The present invention also provides a kind of vehicle, comprises above-mentioned vehicle rear-view mirror.
The present invention also provides a kind of above-mentioned vehicle rear-view mirror to the control method of light intensity, comprising: photoinduction element induction is incident to the intensity of the light of light intensity regulating element; The intensity that the change of the light intensity that control unit senses at different time according to described photoinduction element controls the light of light intensity regulating element on incident regulates.
Preferably, described photoinduction element is once incident to the intensity of the light of described light intensity regulating element at interval of preset time period induction;
The intensity that the change of the light intensity that described control unit senses at different time according to described photoinduction element controls the light of light intensity regulating element on incident carries out regulating specifically comprising:
Before described light intensity regulating element does not start adjustment, n the second light intensity value successively sensed in the first light intensity value described photoinduction element previous moment sensed and follow-up time compares respectively, and judge whether the difference of n described second light intensity value and described first light intensity value is all greater than first threshold, when judged result is no, the intensity of the light of described light intensity regulating element on incident does not regulate; When judged result is for being, then judge whether n described second light intensity value is all greater than Second Threshold, and when judged result is no, the intensity of the light of described light intensity regulating element on incident does not regulate; When judged result is for being, the intensity of the light of described light intensity regulating element on incident regulates.
Preferably, the intensity that the change of light intensity that described control unit senses at different time according to described photoinduction element controls the light of light intensity regulating element on incident is carried out adjustment and is specifically also comprised:
After described light intensity regulating element starts adjustment, m the 4th light intensity value successively sensed in the 3rd light intensity value described photoinduction element previous moment sensed and follow-up time compares respectively, and judge whether the difference of described 3rd light intensity value and m described 4th light intensity value is all greater than described first threshold, when judged result is no, described light intensity regulating element keeps regulating the intensity of the light of incidence; When judged result is for being, then judge whether m described 4th light intensity value is all less than described Second Threshold, when judged result is no, described light intensity regulating element keeps regulating the intensity of the light of incidence; When judged result is for being, described light intensity regulating element stops regulating the intensity of the light of incidence.
Beneficial effect of the present invention: vehicle rear-view mirror provided by the present invention, due to the photoinduction element only corresponding side being arranged on light intensity regulating element, so compared to prior art, enormously simplify the structure of vehicle rear-view mirror; Simultaneously, the intensity that the change of the light intensity that this vehicle rear-view mirror senses at different time according to photoinduction element controls light intensity regulating element on incident light regulates, when front light and rear light can be avoided simultaneously all very strong, the situation that light intensity regulating element cannot open regulatory function occurs, thus avoid the situation that vehicle rear-view mirror anti-dazzle function in these cases cannot open and occur, and then make the anti-dazzle function of vehicle rear-view mirror sensitiveer and intelligent.
The vehicle provided by the present invention, by adopting above-mentioned vehicle rear-view mirror, improve the safety performance of these vehicle.
Accompanying drawing explanation
Fig. 1 is the functional block 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 functional block diagram of vehicle rear-view mirror in the embodiment of the present invention 1;
Fig. 4 is the diagram of circuit that in Fig. 3, vehicle rear-view mirror regulates light intensity;
Fig. 5 is the particular flow sheet of step S2 in Fig. 4.
Description of reference numerals wherein:
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.
Detailed description of the invention
For making those skilled in the art understand technical scheme of the present invention better, be described in further detail to a kind of vehicle rear-view mirror provided by the present invention and to the control method of light intensity and the vehicle below in conjunction with the drawings and specific embodiments.
Embodiment 1:
The present embodiment provides a kind of vehicle rear-view mirror, as shown in Figure 3, comprise light intensity regulating element 1, for regulating the intensity of incident ray, with the generation of anti-dazzle, also comprise photoinduction element 2 and control unit 3, photoinduction element 2 correspondence is arranged on the light side of light intensity regulating element 1, and photoinduction element 2 is for responding to the intensity of the light being incident to light intensity regulating element 1; Control unit 3 controls light intensity regulating element 1 for the change of the light intensity sensed at different time according to photoinduction element 2 and regulates the intensity of the light of incidence.
Compared to prior art, 3 correspondences of the photoinduction element in this vehicle rear-view mirror are arranged on the side of light intensity regulating element 1, enormously simplify the structure of vehicle rear-view mirror, simultaneously, the intensity that the change of the light intensity that this vehicle rear-view mirror senses at different time according to photoinduction element 2 controls light intensity regulating element 1 pair of incident ray regulates, even if the front light of this vehicle rear-view mirror and rear light all very strong at synchronization, the change of the light intensity that also can be sensed at different time by photoinduction element 2 controls the adjustment of light intensity regulating element 1 pair of incident ray intensity, thus make this vehicle rear-view mirror play anti-dazzle function, and then avoid when front light and rear light are simultaneously all very strong, the situation that light intensity regulating element 1 cannot open regulatory function occurs, make the anti-dazzle function of vehicle rear-view mirror sensitiveer and intelligent.
In the present embodiment, control unit 3 comprises memory module 31, first comparison module 32 and control module 33, and photoinduction element 2 is for being once incident to the intensity of the light of light intensity regulating element 1 at interval of preset time period induction.The strength rating being incident to the light of light intensity regulating element 1 that memory module 31 senses for storing photoinduction element 2, also for storing first threshold and Second Threshold.First comparison module 32 for do not start at light intensity regulating element 1 regulate before, n the second light intensity value successively sensed in the first light intensity value photoinduction element 2 previous moment sensed and follow-up time compares respectively, and judges whether the difference of n the second light intensity value and the first light intensity value is all greater than first threshold; Also for when judged result is for being, then judge whether n the second light intensity value is all greater than Second Threshold, wherein, 1≤n≤10, and n is integer.When control module 33 for being in the result of twice judgement being, controlling light intensity regulating element 1 and the intensity of the light of incidence is regulated.
The setting of the first comparison module 32 control module 33, can make the light intensity regulating function of light intensity regulating element 1 automatically and in time open, can make the anti-dazzle function of vehicle rear-view mirror automatically and open in good time, thus make the light intensity regulating function of vehicle rear-view mirror more accurate and intelligent, and then vehicle rear-view mirror is made to play in good time anti-dazzle function better.This vehicle rear-view mirror, even if its front light and rear light are all very strong at one time, also can by comparing and judging whether n in this time the second light intensity value and the difference of the first light intensity value of previous moment have all exceeded first threshold and whether the individual second light intensity value of n has all exceeded Second Threshold, thus determine whether to carry out intensity adjustment to the incident ray of this time, so can avoid when front light and rear light are simultaneously all very strong, the situation that light intensity regulating element 1 cannot open regulatory function occurs.
Wherein, the setting of n the second light intensity value, the light intensity regulating function needing to open light intensity regulating element 1 can be confirmed whether more exactly, the light intensity regulating function of light intensity regulating element 1 can not be opened by mistake and open, thus make the anti-dazzle function of vehicle rear-view mirror sensitiveer and intelligent.The value of n and the length of preset time period are inversely proportional to, and namely preset time period is longer, then the value of n is less; Preset time period is shorter, then the value of n is larger.In the present embodiment, preset time period is 50-200 millisecond, and the value of n is 5.
In the present embodiment, the span of first threshold is 8-10cd/cm
2, the span of Second Threshold is 13-17cd/cm
2.First threshold and Second Threshold are that as in the present embodiment, first threshold is 10cd/cm according to two pre-set values of the anti-dazzle needs of the reality of vehicle rear-view mirror
2, Second Threshold is 15cd/cm
2.The setting of first threshold and Second Threshold, can make user according to the sensation of oneself eye by anti-dazzle for the reality of vehicle rear-view mirror 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, and first threshold and Second Threshold arbitrarily can be set according to the sensation comfort level of oneself by user.
In the present embodiment, control unit 3 also comprises the second comparison module 34, second comparison module 34 for start at light intensity regulating element 1 regulate after, m the 4th light intensity value successively sensed in the 3rd light intensity value photoinduction element 2 previous moment sensed and follow-up time compares respectively, and judges whether the difference of the individual 4th light intensity value of the 3rd light intensity value and m is all greater than first threshold; Also for when judged result is for being, then judge whether m the 4th light intensity value is all less than Second Threshold, wherein, 1≤m≤10, and m is integer.Control module 33, also for when the result once judged arbitrarily is no, controls light intensity regulating element 1 and continues to keep regulating the intensity of the light of incidence; And the result of twice judgement be time, control light intensity regulating element 1 and stop the intensity of the light to incidence to regulate.
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 automatically and in time close, can make the anti-dazzle function of vehicle rear-view mirror automatically and close in good time, thus make the light intensity regulating function of vehicle rear-view mirror more accurate and intelligent, and then vehicle rear-view mirror is made to play in good time anti-dazzle function better.
Wherein, the setting of m the 4th light intensity value, the light intensity regulating function needing to close light intensity regulating element 1 can be confirmed whether more exactly, the light intensity regulating function of light intensity regulating element 1 can not be closed by mistake, thus make the anti-dazzle function of vehicle rear-view mirror sensitiveer and intelligent.The value of m and the length of preset time period are inversely proportional to, and namely preset time period is longer, then the value of m is less; Preset time period is shorter, then the value of m is larger.In the present embodiment, preset time period is 50-200 millisecond, and the value of m is 5.
In the present embodiment, light intensity regulating element 1 adopts electrochromic device.Control unit 3 can control electrochromic device and power up or do not power up, with the intensity adjustment of the light to incidence or do not regulate.Namely electrochromic device is when powering up, and the electrochromic material generation color change of its inside, partially absorb, thus the light intensity making electrochromic device be reflected into human eye reduces greatly, and then make vehicle rear-view mirror play anti-dazzle effect to incident ray.Electrochromic device is not when powering up, and color change can not occur for the electrochromic material of its inside, also can not absorb incident ray, and the light intensity that therefore electrochromic device is reflected into human eye also can not change.
Wherein, control unit 3 can control the size that electrochromic device powers up, and carries out the adjustment of size with the intensity of the light to incidence.Namely control unit 3 is by controlling the size of the voltage be applied on electrochromic device, makes the degree of absorption of electrochromic device to incident ray that either large or small change occur, thus carries out the adjustment of size to the intensity of incident ray.
Due to electrochromic device be used as anti-dazzle vehicle rear-view mirror be the technology of comparative maturity, be no longer described in detail herein.
It should be noted that, the device that light intensity regulating element 1 also can adopt suspended particle device or polymer-dispersed liquid crystal device etc. can regulate the intensity of light.Control unit 3 can control suspended particle device and polymer-dispersed liquid crystal device powers up or do not power up, and does not regulate or regulate with the intensity of the light to incidence.Suspended particle device is identical with the Principles of Regulation of polymer-dispersed liquid crystal device to incident ray intensity, namely when powering up, suspended particles in suspended particle device are regularly arranged, liquid crystal particle in polymer-dispersed liquid crystal device is regularly arranged, this makes suspended particle device and the polymer-dispersed liquid crystal device all transparent state when powering up, can not have any impact to the intensity of incident ray, so the two does not regulate the intensity of the light of incidence when powering up.When not powering up, suspended particles irregular alignment in suspended particle device, liquid crystal particle irregular alignment in polymer-dispersed liquid crystal device, this makes suspended particle device and polymer-dispersed liquid crystal device be all opaque or translucent when not powering up, this can make incident ray generation scattering or diffuser reflection, thus regulates the intensity of incident ray.
Wherein, control unit 3 can control the size that suspended particle device and polymer-dispersed liquid crystal device power up, and carries out adjustment little greatly with the intensity of the light to incidence.The size powered up due to suspended particle device and polymer-dispersed liquid crystal device and its influence degree of incident ray is inversely proportional to, so can by powering up the control of size to suspended particle device and polymer-dispersed liquid crystal device, thus control its adjustment carrying out in various degree to incident ray intensity, and then make the light intensity regulating function of vehicle rear-view mirror more accurate and intelligent.
Suspended particle device and the adjustment of polymer-dispersed liquid crystal device to light intensity are the technology of comparative maturity, are no longer described in detail herein.
Based on the said structure of vehicle rear-view mirror, the present embodiment also provides this vehicle rear-view mirror a kind of to the control method of light intensity, as shown in Figure 4 and Figure 5, comprising: step S1: photoinduction element induction is incident to the intensity of the light of light intensity regulating element.
In this step, photoinduction element is once incident to the intensity of the light of light intensity regulating element at interval of preset time period induction.
Step S2: the intensity that the change of the light intensity that control unit senses at different time according to photoinduction element controls the light of light intensity regulating element on incident regulates.
This step specifically comprises: step S21: before light intensity regulating element does not start adjustment, n the second light intensity value successively sensed in the first light intensity value photoinduction element previous moment sensed and follow-up time compares respectively, and judge whether the difference of n the second light intensity value and the first light intensity value is all greater than first threshold, when judged result is no, perform step S22: the intensity of the light of light intensity regulating element on incident does not regulate; When judged result is for being, perform step S23: judge whether n the second light intensity value is all greater than Second Threshold again, when judged result is no, perform step S22: the intensity of the light of light intensity regulating element on incident does not regulate; When judged result is for being, perform step S24: the intensity of the light of light intensity regulating element on incident regulates.
Step S2 specifically also comprises after execution step S24: step S25: after light intensity regulating element starts adjustment, m the 4th light intensity value successively sensed in the 3rd light intensity value photoinduction element previous moment sensed and follow-up time compares respectively, and judge whether the difference of the 3rd light intensity value and m the 4th light intensity value is all greater than first threshold, when judged result is no, perform step S26: light intensity regulating element keeps regulating the intensity of the light of incidence; When judged result is for being, perform step S27: judge whether m the 4th light intensity value is all less than Second Threshold again, when judged result is no, perform step S26: light intensity regulating element keeps regulating the intensity of the light of incidence; When judged result is for being, perform step S28: light intensity regulating element stops regulating the intensity of the light of incidence.
The multilevel iudge gone round and begun again according to the intensity of above-mentioned steps to the light being incident to light intensity regulating element and control and regulation, thus make the anti-dazzle function of this vehicle rear-view mirror sensitiveer and intelligent; Meanwhile, when this vehicle rear-view mirror can also be made all very strong its front light and rear light while, the intensity can opening light intensity regulating element on incident light equally carries out timely adjustment, makes this vehicle rear-view mirror normally play its anti-dazzle function.
The beneficial effect of embodiment 1: the vehicle rear-view mirror provided in embodiment 1, due to the photoinduction element only corresponding side being arranged on light intensity regulating element, so compared to prior art, enormously simplify the structure of vehicle rear-view mirror; Simultaneously, the intensity that the change of the light intensity that this vehicle rear-view mirror senses at different time according to photoinduction element controls light intensity regulating element on incident light regulates, when front light and rear light can be avoided simultaneously all very strong, the situation that light intensity regulating element cannot open regulatory function occurs, thus avoid the situation that vehicle rear-view mirror anti-dazzle function in these cases cannot open and occur, and then make the anti-dazzle function of vehicle rear-view mirror sensitiveer and intelligent.
Embodiment 2:
The present embodiment provides a kind of vehicle, comprises the vehicle rear-view mirror in embodiment 1.
By adopting the vehicle rear-view mirror in embodiment 1, improve the safety performance of these vehicle.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (11)
1. a vehicle rear-view mirror, comprise light intensity regulating element, for regulating the intensity of incident ray, with the generation of anti-dazzle, it is characterized in that, also comprise photoinduction element and control unit, described photoinduction element correspondence is arranged on the light side of described light intensity regulating element, and described photoinduction element is for responding to the intensity of the light being incident to described light intensity regulating element; The intensity that the change that described control unit is used for the light intensity sensed at different time according to described photoinduction element controls the light of described light intensity regulating element on incident regulates.
2. vehicle rear-view mirror according to claim 1, is characterized in that, described control unit comprises memory module, the first comparison module and control module,
Described photoinduction element is used for the intensity being once incident to the light of described light intensity regulating element at interval of preset time period induction;
The strength rating being incident to the light of described light intensity regulating element that described memory module senses for storing described photoinduction element, also for storing first threshold and Second Threshold;
Described first comparison module is used for before described light intensity regulating element does not start adjustment, n the second light intensity value successively sensed in the first light intensity value described photoinduction element previous moment sensed and follow-up time compares respectively, and judges whether the difference of n described second light intensity value and described first light intensity value is all greater than described first threshold; Also for when judged result is for being, then judge whether n described second light intensity value is all greater than described Second Threshold, wherein, 1≤n≤10, and n is integer;
When described control module for being in the result of twice judgement is, the intensity controlling the light of described light intensity regulating element on incident regulates.
3. vehicle rear-view mirror according to claim 2, it is characterized in that, described control unit also comprises the second comparison module, described second comparison module is used for after described light intensity regulating element starts adjustment, m the 4th light intensity value successively sensed in the 3rd light intensity value described photoinduction element previous moment sensed and follow-up time compares respectively, and judges whether the difference of the individual described 4th light intensity value of described 3rd light intensity value and m is all greater than described first threshold; Also for when judged result is for being, then judge whether m described 4th light intensity value is all less than described Second Threshold, wherein, 1≤m≤10, and m is integer;
Described control module, also for when the result once judged arbitrarily is no, controls described light intensity regulating element and continues to keep regulating the intensity of the light of incidence; And the result of twice judgement be time, control described light intensity regulating element stop the intensity of the light of incidence is regulated.
4. the vehicle rear-view mirror according to Claims 2 or 3, is characterized in that, the span of described first threshold is 8-10cd/cm
2, the span of described Second Threshold is 13-17cd/cm
2.
5. the vehicle rear-view mirror according to claim 1-3 any one, is characterized in that, described light intensity regulating element comprises electrochromic device, suspended particle device or polymer-dispersed liquid crystal device.
6. vehicle rear-view mirror according to claim 5, is characterized in that, described control unit can control described electrochromic device and power up or do not power up, with the intensity adjustment of the light to incidence or do not regulate; Described control unit can control the size that described electrochromic device powers up, and carries out the adjustment of size with the intensity of the light to incidence.
7. vehicle rear-view mirror according to claim 5, is characterized in that, described control unit can control described suspended particle device and described polymer-dispersed liquid crystal device powers up or do not power up, and does not regulate or regulate with the intensity of the light to incidence; Described control unit can control the size that described suspended particle device and described polymer-dispersed liquid crystal device power up, and carries out adjustment little greatly with the intensity of the light to incidence.
8. vehicle, is characterized in that, comprise the vehicle rear-view mirror described in claim 1-7 any one.
9. the vehicle rear-view mirror as described in claim 1-7 any one, to a control method for light intensity, is characterized in that, comprising: photoinduction element induction is incident to the intensity of the light of light intensity regulating element; The intensity that the change of the light intensity that control unit senses at different time according to described photoinduction element controls the light of light intensity regulating element on incident regulates.
10. control method according to claim 9, is characterized in that, described photoinduction element is once incident to the intensity of the light of described light intensity regulating element at interval of preset time period induction;
The intensity that the change of the light intensity that described control unit senses at different time according to described photoinduction element controls the light of light intensity regulating element on incident carries out regulating specifically comprising:
Before described light intensity regulating element does not start adjustment, n the second light intensity value successively sensed in the first light intensity value described photoinduction element previous moment sensed and follow-up time compares respectively, and judge whether the difference of n described second light intensity value and described first light intensity value is all greater than first threshold, when judged result is no, the intensity of the light of described light intensity regulating element on incident does not regulate; When judged result is for being, then judge whether n described second light intensity value is all greater than Second Threshold, and when judged result is no, the intensity of the light of described light intensity regulating element on incident does not regulate; When judged result is for being, the intensity of the light of described light intensity regulating element on incident regulates.
11. control methods according to claim 10, is characterized in that, the intensity that the change of the light intensity that described control unit senses at different time according to described photoinduction element controls the light of light intensity regulating element on incident is carried out adjustment and specifically also comprised:
After described light intensity regulating element starts adjustment, m the 4th light intensity value successively sensed in the 3rd light intensity value described photoinduction element previous moment sensed and follow-up time compares respectively, and judge whether the difference of described 3rd light intensity value and m described 4th light intensity value is all greater than described first threshold, when judged result is no, described light intensity regulating element keeps regulating the intensity of the light of incidence; When judged result is for being, then judge whether m described 4th light intensity value is all less than described Second Threshold, when judged result is no, described light intensity regulating element keeps regulating the intensity of the light of incidence; When judged result is for being, described light intensity regulating element stops regulating the intensity of the light of incidence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262848.6A CN104842880B (en) | 2015-05-21 | 2015-05-21 | Vehicle rear-view mirror and its control method and the vehicles to light intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262848.6A CN104842880B (en) | 2015-05-21 | 2015-05-21 | Vehicle rear-view mirror and its control method and the vehicles to light intensity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104842880A true CN104842880A (en) | 2015-08-19 |
| CN104842880B CN104842880B (en) | 2017-04-05 |
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| CN201510262848.6A Active 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105867042A (en) * | 2016-06-27 | 2016-08-17 | 京东方科技集团股份有限公司 | Intelligent light reflection adjusting device, adjusting method thereof and anti-glaring rearview mirror |
| CN106143316A (en) * | 2016-02-18 | 2016-11-23 | 孟玲 | Automobile rearview mirror with discoloration and preparation method thereof |
| 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 |
| CN111845568A (en) * | 2020-07-24 | 2020-10-30 | 深圳市光羿科技有限公司 | Anti-dazzling rearview mirror |
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| US20040099786A1 (en) * | 2002-11-21 | 2004-05-27 | Exon Science Inc. | Anti-glare rearview mirror assembly and reflectance control method of same |
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| 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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| WO1999022964A1 (en) * | 1997-10-30 | 1999-05-14 | Bayer Aktiengesellschaft | Automatic light dimming rear-view mirror system for motor vehicles |
| US20040099786A1 (en) * | 2002-11-21 | 2004-05-27 | Exon Science Inc. | Anti-glare rearview mirror assembly and reflectance control method of same |
| CN101061024A (en) * | 2004-10-15 | 2007-10-24 | Fico镜像股份有限公司 | Method for controlling electrochemical lens suitable for motro-driven vehicle and electrochemical system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143316A (en) * | 2016-02-18 | 2016-11-23 | 孟玲 | Automobile rearview mirror with discoloration and preparation method thereof |
| CN105867042A (en) * | 2016-06-27 | 2016-08-17 | 京东方科技集团股份有限公司 | Intelligent light reflection adjusting device, adjusting method thereof and anti-glaring rearview 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 |
| CN111845568A (en) * | 2020-07-24 | 2020-10-30 | 深圳市光羿科技有限公司 | Anti-dazzling rearview mirror |
| 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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|---|---|
| CN104842880B (en) | 2017-04-05 |
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