CN105128747A - Control method and device for interior mirror - Google Patents
Control method and device for interior mirror Download PDFInfo
- Publication number
- CN105128747A CN105128747A CN201510622536.1A CN201510622536A CN105128747A CN 105128747 A CN105128747 A CN 105128747A CN 201510622536 A CN201510622536 A CN 201510622536A CN 105128747 A CN105128747 A CN 105128747A
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- Prior art keywords
- room mirror
- mirror
- module
- illuminance
- car
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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
- B60R1/04—Rear-view mirror arrangements mounted inside vehicle
Abstract
The invention provides a control method and device for an interior mirror. The method comprises the following steps: detecting whether a rear auto window is shielded or not; detecting whether the light intensity exceeds a default range or not; detecting whether rainfall exceeds a threshold or not; controlling the display mode of the interior mirror according to the detection results. The control method and device have the advantage that visual field behind an automobile comprising the interior mirror can be presented clearly under various environments, so as to improve the driving safety.
Description
Technical field
The present invention relates to automobile assistant driving technical field, particularly relate to a kind of control method and device of room mirror.
Background technology
Traditional room mirror is all obtain image after car by the mode of optical specular reflection, economical convenient, but, this mode has its defect that cannot overcome, be mainly manifested in: one is when car rear window is blocked, such as arrange passenger's more or large rainy day afterwards, then can not observe the situation after car well; Two is that rear view of vehicle has intense light source, and the headstock headlight of such as back car, sunset sunlight, can produce strong dazzle, causes the visual field to be deteriorated; Three is when after car, ambient light is more dim, and such as basement garage or night are driven a vehicle not having the section of street lamp, and room mirror almost obtains the image after less than car.
Therefore, traditional room mirror haves much room for improvement.
Summary of the invention
The invention provides a kind of control method and device of room mirror, be intended to solve traditional vehicle inside rear-view mirror can not obtain car when car rearward vision is limited after the defect of situation, realization clearly in a variety of contexts can present car rearward vision.
For achieving the above object, the technical solution used in the present invention is:
One aspect of the present invention provides a kind of control method of room mirror, comprising:
Detect rear auto window whether to be blocked;
Detect illuminance and whether exceed preset range;
Detect rainfall and whether exceed threshold value;
Room mirror display format is controlled according to testing result.
Further, also comprise after the step whether described detection rear auto window is blocked:
Detect in back seat region and whether have voice, in this way, then keep optical rearview mirror pattern.
Particularly, the step that whether described detection illuminance exceeds preset range comprises:
After inspection vehicle, whether illuminance Lr is lower than threshold value Lmin;
Illuminance Lc in inspection vehicle, judges that whether the difference of Lr and Lc is higher than dazzle threshold value Lg.
Particularly, the described step according to testing result control room mirror display format comprises:
When rear auto window be blocked, illuminance exceeds after preset range or rainfall exceed threshold value after car, automatically room mirror display format is switched to electronics rearview mirror pattern, and opens corresponding corresponding power supply.
Particularly, the step of voice whether is had to comprise in described detection back seat region:
On room mirror, both sides respectively arrange a microphone composition dual microphone pickup system;
That determines sound sends region, is identified whether containing voice by voice recognition technology.
The present invention provides on the other hand a kind of control setup of room mirror, to comprise in infrared transmitter, infrared remote receiver, car light sensor, rain sensor, camera control module, camera module, graphics processing unit, back mirror display module, back mirror mode control module after light sensor, car;
Described infrared transmitter, for launching infrared ray;
Described infrared remote receiver, for receiving infrared-ray;
Light sensor in described car, for obtaining the illuminance in vehicle;
Light sensor after described car, for obtaining the illuminance of rear view of vehicle;
Described rain sensor, for obtaining the size of moisture conditions;
Described camera control module, for controlling the switch of camera;
Described camera module, for obtaining the image of rear view of vehicle;
Described image processing module, for the treatment of the image that camera module obtains;
Described back mirror display module, for showing treated image;
Described back mirror mode control module, for controlling the display format of room mirror.
Further, described room mirror control setup also comprises:
Room mirror is provided with left and right microphone and voice detection module, and described left and right microphone is used for sound in pickup vehicle, voice detection module for detect whether have voice and sound send region.
Beneficial effect of the present invention is: whether the present invention is blocked by detecting rear auto window, after car, whether light intensity is dim or whether have dazzle, whether rear auto window is fuzzy by rainwater, when there is above-mentioned situation, automatically back mirror is switched to electronics rearview mirror pattern, achieve and clearly in a variety of contexts present car rearward vision, improve drive safety.
Accompanying drawing explanation
Fig. 1 is the rear window visual field schematic diagram of room mirror of the present invention;
Fig. 2 is the infrared signal schematic diagram of rear auto window of the present invention when not being blocked;
Fig. 3 is the infrared signal schematic diagram of rear auto window of the present invention when being blocked;
Fig. 4 is the structural representation of the control of room mirror of the present invention;
Fig. 5 is another structural representation of the control of room mirror of the present invention.
Detailed description of the invention
Specifically illustrate embodiments of the present invention below in conjunction with accompanying drawing, accompanying drawing is only for reference and use is described, does not form the restriction to scope of patent protection of the present invention.
Embodiments of the invention provide a kind of control method of room mirror on the one hand, comprising:
S10. detect rear auto window whether to be blocked.
As shown in Figure 1, Figure 2, Figure 3 shows, can infrared transmitter and receptor be set on inside-automobile rear mirror, because vehicle rear window glass has certain angle of inclination, therefore, when vehicle rear window glass does not block, the infrared ray that infrared transmitter is launched, through mirror-reflection, cannot arrive the infrared remote receiver on inside-automobile rear mirror.And when back seat has people to shelter from vehicle rear window glass, due to the diffuser reflection of human body, have the infrared remote receiver on part infrared ray arrival inside-automobile rear mirror, when the infrared ray received exceedes threshold value, then illustrate that vehicle rear window glass is blocked.
S30. detect illuminance and whether exceed preset range.
Particularly, after can carrying out inspection vehicle by the light sensor being arranged on tailstock camera place, whether illuminance Lr is lower than threshold value Lmin, as Lr < Lmin, shows that the light at automobile rear is not good, is in dark scene; Inside-automobile rear mirror arranges light sensor and carrys out illuminance Lc in inspection vehicle, judge that whether the difference of Lr and Lc is higher than dazzle threshold value Lg, as Lr-Lc > Lg, shows that there is intense light source at automobile rear, can cause dazzle.Lmin, Lg can regulate according to actual needs, preferably, and Lmin=300lux, Lg=500lux.
S40. detect rainfall and whether exceed threshold value.
Particularly, current rainfall R can be detected by rain sensor and whether exceed threshold value Rt.At present, applying two kinds of wider main flow rain sensors is optical profile type rain sensor and capacitive rain quantity sensor.Use optical profile type rain sensor, when Windshield is in drying regime time, the light of sensor emission nearly all can reflex on a receive optical sensor; And Sometimes When It Rains, Windshield ought can have rainwater, a part of light will depart from, and the total amount that sensor receives light can change, thus reaches the object detecting rainfall.Use capacitive rain quantity sensor, then mainly utilize the greatest differences of the specific inductance capacity of water and glass: the specific inductance capacity of water is 80, the specific inductance capacity of glass is 2.When Windshield becomes wet time, different according to water yield contact with Windshield, there is different changes in the specific inductance capacity of Windshield, thus reaches the object of detection rainfall.As R > Rt, show that the rear auto window visual field is fuzzy by rainwater.Rt can regulate according to actual needs, preferably, and Rt=1mm/min.
S50. room mirror display format is controlled according to testing result.
Room mirror display format is divided into optical rearview mirror pattern and electronics rearview mirror pattern, when electronics rearview mirror pattern is closed, is optical rearview mirror pattern.
Particularly: when rear auto window be blocked, illuminance exceeds after preset range or rainfall exceed threshold value after car, automatically room mirror display format is switched to electronics rearview mirror pattern, and opens corresponding corresponding power supply.
In one embodiment of the invention, comprise after step S10:
S20. detect in back seat region whether have voice, in this way, then keep optical rearview mirror pattern.
Specifically comprise the following steps:
S201. on room mirror, both sides respectively arrange a microphone composition dual microphone pickup system;
That S202. determines sound sends region, is identified whether containing voice by voice recognition technology.
Voice recognition technology is current comparatively proven technique, as the voice recognition technology based on approximate entropy (refers to " the VDR voice recognition technology research based on approximate entropy ", sensor and micro-system, the 30th volume the 6th phase in 2011,61-64,70 pages), do not repeat them here.
As shown in Figure 4, the present invention provides on the other hand a kind of control setup of room mirror, to comprise in infrared transmitter, infrared remote receiver, car light sensor, rain sensor, camera control module, camera module, graphics processing unit, back mirror display module, back mirror mode control module after light sensor, car;
Described infrared transmitter, for launching infrared ray;
Described infrared remote receiver, for receiving infrared-ray;
Light sensor in described car, for obtaining the illuminance in vehicle;
Light sensor after described car, for obtaining the illuminance of rear view of vehicle;
Described rain sensor, for obtaining the size of moisture conditions;
Described camera control module, for controlling the switch of camera;
Described camera module, for obtaining the image of rear view of vehicle;
Described image processing module, for the treatment of the image that camera module obtains;
Described back mirror display module, for showing treated image;
Described back mirror mode control module, for controlling the display format of room mirror.
The working process of the control setup of room mirror of the present invention is:
Infrared transmitter launches infrared ray to rear auto window constantly, when back seat has people to shelter from vehicle rear window glass, due to the diffuser reflection of human body, have the infrared remote receiver on part infrared ray arrival inside-automobile rear mirror, when the infrared ray that infrared remote receiver receives exceedes threshold value, camera control module judges that vehicle rear window glass is blocked;
In car, after light sensor, car, light sensor obtains illuminance Lc, the Lr in car and after car respectively, camera control module judges whether Lc is greater than Lmin or Lr-Lc and whether is greater than Lg, as Lc < Lmin, or during Lr-Lc > Lg, camera control module judges that illuminance exceeds preset range;
Rain sensor detects current rainfall R, and as R > Rt, camera control module judges that current rainfall exceedes threshold value, and the rear auto window visual field is fuzzy by rainwater.
When one of above-mentioned condition meets, camera control module opens camera module, the image of shooting rear view of vehicle, send pattern switching command to back mirror mode control module simultaneously, back mirror display module is switched to electronics rearview mirror pattern by back mirror mode control module, and the image of camera module shooting is shown by back mirror display module after image processing module process.
As shown in Figure 5, in another embodiment of the present invention, described room mirror control setup is also included on room mirror and is provided with left and right microphone and voice detection module, described left and right microphone is used for sound in pickup vehicle, voice detection module for detect whether have voice and sound send region.Being provided with left and right microphone and voice detection module by being arranged on room mirror, when judging that rear deck seat has passenger, then keeping optical rearview mirror pattern, so that chaufeur arranges passenger after can observing.
Above disclosedly be only preferred embodiment of the present invention, the scope of the present invention can not be limited with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (8)
1. a control method for room mirror, is characterized in that, comprising:
Detect rear auto window whether to be blocked;
Detect illuminance and whether exceed preset range;
Detect rainfall and whether exceed threshold value;
Room mirror display format is controlled according to testing result.
2. the control method of room mirror according to claim 1, is characterized in that, also comprises after the step whether described detection rear auto window is blocked:
Detect in back seat region and whether have voice, in this way, then keep optical rearview mirror pattern.
3. the control method of room mirror according to claim 1, is characterized in that, the step whether described detection illuminance exceeds preset range comprises:
After inspection vehicle, whether illuminance Lr is lower than threshold value Lmin;
Illuminance Lc in inspection vehicle, judges that whether the difference of Lr and Lc is higher than dazzle threshold value Lg.
4. the control method of room mirror according to claim 1, is characterized in that, the described step according to testing result control room mirror display format comprises:
When rear auto window be blocked, illuminance exceeds after preset range or rainfall exceed threshold value after car, automatically room mirror display format is switched to electronics rearview mirror pattern, and opens corresponding corresponding power supply.
5. whether the control method of room mirror according to claim 2, is characterized in that, have the step of voice to comprise in described detection back seat region:
On room mirror, both sides respectively arrange a microphone composition dual microphone pickup system;
That determines sound sends region, is identified whether containing voice by voice recognition technology.
6. the control setup of a room mirror, it is characterized in that, comprising: light sensor, rain sensor, camera control module, camera module, graphics processing unit, back mirror display module, back mirror mode control module after light sensor, car in infrared transmitter, infrared remote receiver, car;
Described infrared transmitter, for launching infrared ray;
Described infrared remote receiver, for receiving infrared-ray;
Light sensor in described car, for obtaining the illuminance in vehicle;
Light sensor after described car, for obtaining the illuminance of rear view of vehicle;
Described rain sensor, for obtaining the size of moisture conditions;
Described camera control module, for controlling the switch of camera;
Described camera module, for obtaining the image of rear view of vehicle;
Described image processing module, for the treatment of the image that camera module obtains;
Described back mirror display module, for showing treated image;
Described back mirror mode control module, for controlling the display format of room mirror.
7. the control setup of room mirror according to claim 6, is characterized in that, room mirror control setup also comprises:
Room mirror is provided with left and right microphone and voice detection module, and described left and right microphone is used for sound in pickup vehicle, voice detection module for detect whether have voice and sound send region.
8. the control setup of the room mirror according to claim 6 or 7, is characterized in that, described inside rear-view mirror comprises optical rearview mirror pattern and electronics rearview mirror pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622536.1A CN105128747A (en) | 2015-09-24 | 2015-09-24 | Control method and device for interior mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622536.1A CN105128747A (en) | 2015-09-24 | 2015-09-24 | Control method and device for interior mirror |
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| CN105128747A true CN105128747A (en) | 2015-12-09 |
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| CN201510622536.1A Pending CN105128747A (en) | 2015-09-24 | 2015-09-24 | Control method and device for interior mirror |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106585532A (en) * | 2016-11-30 | 2017-04-26 | 惠州华阳通用电子有限公司 | Automobile inside rearview mirror video switching method and device |
| CN107220613A (en) * | 2017-05-24 | 2017-09-29 | 郑勇 | Multifunctional control method based on image procossing |
| CN108422934A (en) * | 2018-05-09 | 2018-08-21 | 广东远峰汽车电子有限公司 | A kind of Streaming Media rearview mirror |
| CN110435665A (en) * | 2019-08-14 | 2019-11-12 | 东风汽车有限公司 | Driver detection device and car |
| CN111016790A (en) * | 2019-12-11 | 2020-04-17 | 北京汽车股份有限公司 | Method and device for controlling intelligent interior rear-view mirror, storage medium and vehicle |
| CN112339664A (en) * | 2020-10-28 | 2021-02-09 | 富晟(广东)汽车电子有限公司 | Control system and control method for automobile electronic exterior rearview mirror |
| CN112369014A (en) * | 2019-02-13 | 2021-02-12 | Jvc建伍株式会社 | Vehicle video control device, vehicle video system, video control method, and program |
| CN113043954A (en) * | 2021-03-25 | 2021-06-29 | 浙江零跑科技有限公司 | Convertible rearview system and method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106585532A (en) * | 2016-11-30 | 2017-04-26 | 惠州华阳通用电子有限公司 | Automobile inside rearview mirror video switching method and device |
| CN107220613A (en) * | 2017-05-24 | 2017-09-29 | 郑勇 | Multifunctional control method based on image procossing |
| CN108422934A (en) * | 2018-05-09 | 2018-08-21 | 广东远峰汽车电子有限公司 | A kind of Streaming Media rearview mirror |
| CN112369014A (en) * | 2019-02-13 | 2021-02-12 | Jvc建伍株式会社 | Vehicle video control device, vehicle video system, video control method, and program |
| CN110435665A (en) * | 2019-08-14 | 2019-11-12 | 东风汽车有限公司 | Driver detection device and car |
| CN111016790A (en) * | 2019-12-11 | 2020-04-17 | 北京汽车股份有限公司 | Method and device for controlling intelligent interior rear-view mirror, storage medium and vehicle |
| CN111016790B (en) * | 2019-12-11 | 2021-05-25 | 北京汽车股份有限公司 | Method and device for controlling intelligent interior rear-view mirror, storage medium and vehicle |
| CN112339664A (en) * | 2020-10-28 | 2021-02-09 | 富晟(广东)汽车电子有限公司 | Control system and control method for automobile electronic exterior rearview mirror |
| CN113043954A (en) * | 2021-03-25 | 2021-06-29 | 浙江零跑科技有限公司 | Convertible rearview system and method |
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Application publication date: 20151209 |