CN104057872B - Car prepositive light control method and system - Google Patents
Car prepositive light control method and system Download PDFInfo
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- CN104057872B CN104057872B CN201410249039.7A CN201410249039A CN104057872B CN 104057872 B CN104057872 B CN 104057872B CN 201410249039 A CN201410249039 A CN 201410249039A CN 104057872 B CN104057872 B CN 104057872B
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Abstract
The invention belongs to the field of car light control, and discloses a car prepositive light control method and system. According to the invention, whether to open the prepositive light is based on brightness of the ambient light, and the prepositive light can automatically open both at night and in gloomy weather during the day; ultrasonic waves are emitted to judge whether there are other cars around; when there are other cars, the brightness of the prepositive light is gradually lowered to the default low brightness value so as to avoid traffic accidents because other drivers become blind due to bright light; the light control method and system solves the problems that the conventional car is unable to automatically identify whether there are other cars around and irradiates the pavement in bright light all the time, so that other drivers are caused to become blind, and traffic accidents happen easily.
Description
Technical field
The invention belongs to car bulb control field, particularly relate to a kind of automobile preposition lamp light control method and system.
Background technology
The invention of automobile is that the progress of human society provides great facilitation, increasing commercial vehicle and private car appear on road now, not only facilitate the trip of people, automobile still " changes the machine in the world ", promotes the wheel of social progress, and automobile has become important component part indispensable in our daily life.The generally use of automobile, will change economic society structure, form a whole set of new economy, culture, life system, improve the quality of life of people, advance social progress, facilitate economic development.
Travel for the ease of night, automobile is provided with front-mounted lamp, but when night, the front-mounted lamp of automobile can be very dazzling, as two or many automobile meetings, often causes moment blind to driver, thus causes traffic accident.
Summary of the invention
The invention provides a kind of automobile potential quality lamp light control method, being intended to solve existing automobile can not automatically identify whether meeting vehicle and always with strong illumination road surface, cause meeting driver blind, thus easily causes the problem causing traffic accident.
In order to solve the problems of the technologies described above, the present invention is achieved in that a kind of automobile preposition lamp light control method, said method comprising the steps of:
The brightness of testing environment light, judges whether the preposition light of opening automobile according to testing result;
When automobile preposition light is opened, obtain the moving velocity of automobile, and launch super sonic forward;
According at least twice continuous described super sonic from the state of kinematic motion being transmitted into the described hypracoustic object of time difference judgement reflection be reflected back;
When described object and described automobile move in the opposite direction, calculate the meeting required time of described automobile and described object;
According to described time controling, the brightness of automobile preposition light is reduced to minimum predetermined brightness value when meeting.
Further, describedly judge whether that the step of the preposition light of opening automobile specifically comprises the following steps according to testing result:
When the ambient light brightness detected is lower than when opening the default light luminance threshold value of preposition light, then open the preposition light of described automobile;
When the ambient light brightness detected is higher than when opening the default light luminance threshold value of preposition light, then close the preposition light of described automobile.
Further, the state of kinematic motion of described object comprise static, to move in the same way with the sense of motion of described automobile and with the sense of motion reverse motions of described automobile.
Further, the step of the meeting required time of the described automobile of described calculating and described object is specially:
The kinematic velocity of described object is calculated according to following formula;
；
The time of cars meeting T of described automobile and described object is calculated according to following formula;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is transmitted into the time difference be reflected back toward super sonic first time, and T2 is that super sonic second time is transmitted into the time difference be launched back.
Further, the step that the brightness of automobile preposition light is reduced to minimum predetermined brightness value when meeting according to described time controling specifically comprises the following steps:
Highest brightness value and the minimum brightness value of the front-mounted lamp luminance brightness of automobile are set;
The medium intensity range value of described highest brightness value and minimum brightness value is divided into [T]+1 brightness degree;
A brightness degree of automobile preposition light is reduced every the unit time.
The present invention also aims to provide a kind of automobile preposition lamp light control system, described system comprises:
Detecting unit, for the brightness of testing environment light;
First judging unit, for judging whether the preposition light of opening automobile according to the testing result of detecting unit;
Acquiring unit, for when automobile preposition light is opened, obtains the moving velocity of automobile;
Ultrasonic transmitting element, for launching super sonic forward;
Second judging unit, for basis at least twice continuous described super sonic from the state of kinematic motion being transmitted into the described hypracoustic object of time difference judgement reflection be reflected back;
Calculating unit, for when described object and described automobile move in the opposite direction, calculates the meeting required time of described automobile and described object;
Setting unit, the brightness for automobile preposition light according to described time controling is reduced to minimum predetermined brightness value when meeting.
Further, described first judging unit specifically for:
When the ambient light brightness detected is lower than when opening the default light luminance threshold value of preposition light, then open the preposition light of described automobile;
When the ambient light brightness detected is higher than when opening the default light luminance threshold value of preposition light, then close the preposition light of described automobile.
Further, the state of kinematic motion of described object comprise static, with the sense of motion of described automobile in the same way and contrary with the sense of motion of described automobile.
Further, described calculating unit specifically for:
The kinematic velocity of described object is calculated according to following formula;
；
The time of cars meeting T of described automobile and described object is calculated according to following formula;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is transmitted into the time difference be reflected back toward super sonic first time, and T2 is that super sonic second time is transmitted into the time difference be launched back.
Further, setting unit specifically for:
Highest brightness value and the minimum brightness value of the front-mounted lamp luminance brightness of automobile are set;
The medium intensity range value of described highest brightness value and minimum brightness value is divided into [T]+1 brightness degree;
A brightness degree of automobile preposition light is reduced every the unit time.
In the present invention, environmentally light luminance judges whether that opening preposition light not only can open preposition light at night, also preposition light can be automatically opened by day when weather darkness, meeting vehicle can have been judged whether by launching super sonic, when there being meeting vehicle, slowly reduce the brightness of preposition light to the low brightness values preset, thus traffic accident can not be caused because of high light blinding meeting driver.Solve existing automobile can not automatically identify whether meeting vehicle and always with strong illumination road surface, cause meeting driver blind, thus easily cause the problem causing traffic accident.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the automobile preposition lamp light control method that first embodiment of the invention provides;
Fig. 2 is the realization flow figure of the automobile preposition lamp light control method that second embodiment of the invention provides;
Fig. 3 is the realization flow figure of the automobile preposition lamp light control method that third embodiment of the invention provides;
Fig. 4 is the frame construction drawing of the automobile preposition lamp light control system that the embodiment of the present invention provides.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with specific embodiment, specific implementation of the present invention is described in detail:
embodiment one:
Fig. 1 shows the realization flow of the automobile preposition lamp light control method that first embodiment of the invention provides, and for convenience of explanation, only list the part relevant to first embodiment of the invention, details are as follows:
As shown in Figure 1, the automobile preposition lamp light control method that first embodiment of the invention provides comprises the following steps:
Step S101, the brightness of testing environment light;
Step S102, judges whether the preposition light of opening automobile according to testing result;
Step S103, when automobile preposition light is opened, obtains the moving velocity of automobile, and launches super sonic forward;
Step S104, according at least twice this super sonic continuous from the state of kinematic motion being transmitted into this hypracoustic object of time difference judgement reflection be reflected back;
Step S105, when this object and this automobile move in the opposite direction, calculates the meeting required time of this automobile and this object;
Step S106, is reduced to minimum predetermined brightness value according to the brightness of this automobile preposition light of this time controling when meeting.
It should be noted that: in all embodiments of the present invention, the automobile preposition lamplight brightness of indication refers to the brightness of dazzle light.
embodiment two:
Fig. 2 shows the realization flow of the automobile preposition lamp light control method that second embodiment of the invention provides, and for convenience of explanation, only list the part relevant to second embodiment of the invention, details are as follows:
As shown in Figure 2, as second embodiment of the invention, in embodiment one, judge whether that the step of the preposition light of opening automobile specifically comprises the following steps according to testing result:
Step S1021, when the ambient light brightness detected is lower than when opening the default light luminance threshold value of preposition light, then opens the preposition light of this automobile;
Step S1022, when the ambient light brightness detected is higher than when opening the default light luminance threshold value of preposition light, then closes the preposition light of this automobile.
In embodiments of the present invention, judge whether that opening preposition light not only can open preposition light at night automatically, can also open preposition light by dark weather by day automatically by the brightness of testing environment relation.
As one embodiment of the invention, the state of kinematic motion of this object comprise static, to move in the same way with the sense of motion of this automobile and with the sense of motion reverse motions of this automobile.
In embodiments of the present invention, this object includes but not limited to it is obstacle, people, automobile etc.
As one embodiment of the invention, the step calculating the meeting required time of this automobile and this object in embodiment one is specially:
The kinematic velocity of this object is calculated according to following formula;
；
The time of cars meeting T of this automobile and this object is calculated according to following formula;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is transmitted into the time difference be reflected back toward super sonic first time, and T2 is that super sonic second time is transmitted into the time difference be launched back.
In embodiments of the present invention, the calculating receiving super sonic carry out for twice, when the time being transmitted into reception with repeated ultrasonic ripple calculates, averages after calculating with adjacent two times.
embodiment three:
Fig. 3 shows the realization flow of the automobile preposition lamp light control method that third embodiment of the invention provides, and for convenience of explanation, only list the part relevant to third embodiment of the invention, details are as follows:
As shown in Figure 3, as one embodiment of the invention, the step being reduced to minimum predetermined brightness value when meeting according to the brightness of this automobile preposition light of this time controling in embodiment one specifically comprises the following steps:
Step S1061, arranges highest brightness value and the minimum brightness value of the front-mounted lamp luminance brightness of automobile;
Step S1062, is divided into [T]+1 brightness degree by the medium intensity range value of this highest brightness value and minimum brightness value;
Step S1063, reduces a brightness degree of automobile preposition light every the unit time.
It should be noted that: in the embodiment of the present invention, this automobile and this object are at the uniform velocity to advance; when this automobile and/or this object make with speed change traveling; only need to improve method of calculating, when namely automobile and/or this object make with speed change traveling, the control method of preposition light is also belong to the scope of protection of the invention.
In embodiments of the present invention, environmentally light luminance judges whether that opening preposition light not only can open preposition light at night, also preposition light can be automatically opened by day when weather darkness, meeting vehicle can have been judged whether by launching super sonic, when there being meeting vehicle, slowly reduce the brightness of preposition light to the low brightness values preset, thus traffic accident can not be caused because of high light blinding meeting driver.Solve existing automobile can not automatically identify whether meeting vehicle and always with strong illumination road surface, cause meeting driver blind, thus easily cause the problem causing traffic accident.
As shown in Figure 4, the embodiment of the present invention additionally provides a kind of automobile preposition lamp light control system 100, comprising:
Detecting unit 101, for the brightness of testing environment light;
First judging unit 102, for judging whether the preposition light of opening automobile according to the testing result of detecting unit;
Acquiring unit 103, for when automobile preposition light is opened, obtains the moving velocity of automobile;
Ultrasonic transmitting element 104, for launching super sonic forward;
Second judging unit 105, for basis at least twice this super sonic continuous from the state of kinematic motion being transmitted into this hypracoustic object of time difference judgement reflection be reflected back;
Calculating unit 106, for when this object and this automobile move in the opposite direction, calculates the meeting required time of this automobile and this object;
Setting unit 107, for being reduced to minimum predetermined brightness value according to the brightness of this automobile preposition light of this time controling when meeting.
The embodiment of the present invention is the system claims corresponding with above-mentioned automobile preposition lamp light control method, its work outflow and control principle one_to_one corresponding, is not just repeating at this.
It should be noted that: system 100 comprises ultrasonic wave receive unit.
As one embodiment of the invention, the first judging unit 102 specifically for:
When the ambient light brightness detected is lower than when opening the default light luminance threshold value of preposition light, then open the preposition light of this automobile;
When the ambient light brightness detected is higher than when opening the default light luminance threshold value of preposition light, then close the preposition light of this automobile.
As one embodiment of the invention, the state of kinematic motion of this object comprise static, to move in the same way with the sense of motion of this automobile and with the sense of motion reverse motions of this automobile.
As one embodiment of the invention, calculating unit 106 specifically for:
The kinematic velocity of this object is calculated according to following formula;
；
The time of cars meeting T of this automobile and this object is calculated according to following formula;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is transmitted into the time difference be reflected back toward super sonic first time, and T2 is that super sonic second time is transmitted into the time difference be launched back.
As one embodiment of the invention, setting unit 107 specifically for:
Highest brightness value and the minimum brightness value of the front-mounted lamp luminance brightness of automobile are set;
The medium intensity range value of this highest brightness value and minimum brightness value is divided into [T]+1 brightness degree;
A brightness degree of automobile preposition light is reduced every the unit time.
In embodiments of the present invention, environmentally light luminance judges whether that opening preposition light not only can open preposition light at night, also preposition light can be automatically opened by day when weather darkness, meeting vehicle can have been judged whether by launching super sonic, when there being meeting vehicle, slowly reduce the brightness of preposition light to the low brightness values preset, thus traffic accident can not be caused because of high light blinding meeting driver.Solve existing automobile can not automatically identify whether meeting vehicle and always with strong illumination road surface, cause meeting driver blind, thus easily cause the problem causing traffic accident.
It will be appreciated by those skilled in the art that the unit comprised for above-described embodiment is carry out dividing according to function logic, but be not limited to above-mentioned division, as long as corresponding function can be realized; In addition, the concrete title of each functional unit, also just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
Those of ordinary skill in the art it is also understood that, the all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, described program can be stored in a computer read/write memory medium, described storage medium, comprises ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an automobile preposition lamp light control method, is characterized in that, said method comprising the steps of:
The brightness of testing environment light, judges whether the preposition light of opening automobile according to testing result;
When automobile preposition light is opened, obtain the moving velocity of automobile, and launch super sonic forward;
According at least twice continuous described super sonic from the state of kinematic motion being transmitted into the described hypracoustic object of time difference judgement reflection be reflected back;
When described object and described automobile move in the opposite direction, calculate the meeting required time of described automobile and described object;
According to described time controling, the brightness of automobile preposition light is reduced to minimum predetermined brightness value when meeting.
2. the method for claim 1, is characterized in that, describedly judges whether that the step of the preposition light of opening automobile specifically comprises the following steps according to testing result:
When the ambient light brightness detected is lower than when opening the default light luminance threshold value of preposition light, then open the preposition light of described automobile;
When the ambient light brightness detected is higher than when opening the default light luminance threshold value of preposition light, then close the preposition light of described automobile.
3. the method for claim 1, is characterized in that, the state of kinematic motion of described object comprise static, to move in the same way with the sense of motion of described automobile and with the sense of motion reverse motions of described automobile.
4. the method for claim 1, is characterized in that, the step of the meeting required time of the described automobile of described calculating and described object is specially:
The kinematic velocity of described object is calculated according to following formula;
；
The time of cars meeting T of described automobile and described object is calculated according to following formula;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is transmitted into the time difference be reflected back toward super sonic first time, and T2 is that super sonic second time is transmitted into the time difference be launched back.
5. the method for claim 1, is characterized in that, the step that the brightness of automobile preposition light is reduced to minimum predetermined brightness value when meeting according to described time controling specifically comprises the following steps:
Highest brightness value and the minimum brightness value of the front-mounted lamp luminance brightness of automobile are set;
The medium intensity range value of described highest brightness value and minimum brightness value is divided into [T]+1 brightness degree;
A brightness degree of automobile preposition light is reduced every the unit time.
6. an automobile preposition lamp light control system, is characterized in that, described system comprises:
Detecting unit, for the brightness of testing environment light;
First judging unit, for judging whether the preposition light of opening automobile according to the testing result of detecting unit;
Acquiring unit, for when automobile preposition light is opened, obtains the moving velocity of automobile;
Ultrasonic transmitting element, for launching super sonic forward;
Second judging unit, for basis at least twice continuous described super sonic from the state of kinematic motion being transmitted into the described hypracoustic object of time difference judgement reflection be reflected back;
Calculating unit, for when described object and described automobile move in the opposite direction, calculates the meeting required time of described automobile and described object;
Setting unit, the brightness for automobile preposition light according to described time controling is reduced to minimum predetermined brightness value when meeting.
7. system as claimed in claim 6, is characterized in that, described first judging unit specifically for:
When the ambient light brightness detected is lower than when opening the default light luminance threshold value of preposition light, then open the preposition light of described automobile;
When the ambient light brightness detected is higher than when opening the default light luminance threshold value of preposition light, then close the preposition light of described automobile.
8. system as claimed in claim 6, is characterized in that, the state of kinematic motion of described object comprise static, with the sense of motion of described automobile in the same way and contrary with the sense of motion of described automobile.
9. system as claimed in claim 6, is characterized in that, described calculating unit specifically for:
The kinematic velocity of described object is calculated according to following formula;
；
The time of cars meeting T of described automobile and described object is calculated according to following formula;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is transmitted into the time difference be reflected back toward super sonic first time, and T2 is that super sonic second time is transmitted into the time difference be launched back.
10. system as claimed in claim 6, is characterized in that, setting unit specifically for:
Highest brightness value and the minimum brightness value of the front-mounted lamp luminance brightness of automobile are set;
The medium intensity range value of described highest brightness value and minimum brightness value is divided into [T]+1 brightness degree;
A brightness degree of automobile preposition light is reduced every the unit time.
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| CN201410249039.7A CN104057872B (en) | 2014-06-08 | 2014-06-08 | Car prepositive light control method and system |
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| CN201410249039.7A CN104057872B (en) | 2014-06-08 | 2014-06-08 | Car prepositive light control method and system |
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| CN106740427B (en) * | 2016-12-05 | 2020-09-18 | 车音智能科技有限公司 | Vehicle light control reminding method and device |
| CN107117094B (en) * | 2017-04-21 | 2019-05-07 | 晋江弘钧电子科技有限公司 | Automobile lamp control method suitable for the cloudy day |
| CN107284238B (en) * | 2017-05-11 | 2020-06-09 | 金苡炫 | Automobile driving speed control method and automobile |
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| KR102023525B1 (en) * | 2012-09-27 | 2019-09-20 | 엘지이노텍 주식회사 | Head light apparatus and control method thereof |
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| CN1602260A (en) * | 2001-12-10 | 2005-03-30 | 金泰克斯公司 | Headlamp control to prevent glare |
| CN1692470A (en) * | 2002-11-11 | 2005-11-02 | 全永一 | Apparatus and method for controlling headlight in vehicle and headlight lamp having multifunction structure |
| EP2067660A2 (en) * | 2007-12-06 | 2009-06-10 | Robert Bosch GmbH | Method to reduce brightness released by lamps and device to reduce the brightness of lamps for vehicles |
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Inventor after: Yang Shaofang Inventor before: Liu Yong |
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Effective date of registration: 20170824 Address after: 528308 Guangdong Province, Foshan city Shunde District Lunjiao teach 1 Garden Road four Patentee after: Foshan Weishi map Electronic Technology Co. Ltd. Address before: 239000 Anhui city of Chuzhou province Lai'an county Yong Yang Qinglong Street Road East Patentee before: Laian Xinyuan Electrical & Mechanical Equipment Design Co., Ltd. |