CN104057872A - Car prepositive light control method and system - Google Patents
Car prepositive light control method and system Download PDFInfo
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- CN104057872A CN104057872A CN201410249039.7A CN201410249039A CN104057872A CN 104057872 A CN104057872 A CN 104057872A CN 201410249039 A CN201410249039 A CN 201410249039A CN 104057872 A CN104057872 A CN 104057872A
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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, relate in particular to a kind of automobile preposition lamp light control method and system.
Background technology
The progress that the invention of automobile is human society provides great facilitation, now increasing commercial vehicle and private car appear on road, not only facilitated people's trip, 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 people's quality of life, advance social progress, promote economic development.
For the ease of travelling night, automobile is provided with front-mounted lamp, and still, in the time of night, the front-mounted lamp of automobile can be very dazzling, when two or many automobile meetings, tends to cause moment blind to driver, thereby causes traffic accident.
Summary of the invention
The invention provides a kind of automobile potential quality lamp light control method, be intended to solve existing automobile and can not automatically identify and whether have meeting vehicle and always with strong illumination road surface, cause meeting driver blind, thereby easily cause the problem that causes 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 forward super sonic;
According at least twice continuous described super sonic, from being transmitted into the time difference judgement being reflected back, reflect the state of kinematic motion of described hypracoustic object;
When described object and described automobile move in the opposite direction, calculate the meeting required time of described automobile and described object;
The brightness of controlling described automobile preposition light according to the described time is reduced to minimum predetermined brightness value when meeting.
Further, describedly according to testing result, judge whether that the step of the preposition light of opening automobile specifically comprises the following steps:
When the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, open the preposition light of described automobile;
When the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, close the preposition light of described automobile.
Further, the state of kinematic motion of described object comprise static, 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:
According to following formula, calculate the kinematic velocity of described object;
；
According to following formula, calculate the time of cars meeting T of described automobile and described object;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is that super sonic is transmitted into the time difference being reflected back toward for the first time, and T2 is that super sonic is transmitted into the time difference being launched back for the second time.
Further, the step that the brightness of controlling described automobile preposition light according to the described time is reduced to minimum predetermined brightness value when meeting 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 intermediate luminance value range of described highest brightness value and minimum brightness value is divided into [T]+1 brightness degree;
Every the unit time, reduce a brightness degree of automobile preposition light.
The present invention also aims to provide a kind of automobile preposition lamp light control system, described system comprises:
Detecting unit, for detection of ambient light brightness;
The 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 forward super sonic;
The second judging unit, for reflecting the state of kinematic motion of described hypracoustic object from being transmitted into the time difference judgement being reflected back according at least twice continuous described super sonic;
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, is reduced to minimum predetermined brightness value when the meeting for the brightness of controlling described automobile preposition light according to the described time.
Further, described the first judging unit specifically for:
When the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, open the preposition light of described automobile;
When the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, 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:
According to following formula, calculate the kinematic velocity of described object;
；
According to following formula, calculate the time of cars meeting T of described automobile and described object;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is that super sonic is transmitted into the time difference being reflected back toward for the first time, and T2 is that super sonic is transmitted into the time difference being launched back for the second time.
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 intermediate luminance value range of described highest brightness value and minimum brightness value is divided into [T]+1 brightness degree;
Every the unit time, reduce a brightness degree of automobile preposition light.
In the present invention, according to ambient light, brightness judges whether to open preposition light and not only can open at night preposition light, also can automatically open preposition light when weather darkness by day, by transmitting super sonic, can judge whether meeting vehicle, when having meeting vehicle, slowly reduce the brightness of preposition light to default low brightness values, thereby can not cause traffic accident because of high light blinding meeting driver.Solve existing automobile and can not automatically identify and whether have meeting vehicle and always with strong illumination road surface, cause meeting driver blind, thereby easily caused the problem that causes traffic accident.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the automobile preposition lamp light control method that provides of first embodiment of the invention;
Fig. 2 is the realization flow figure of the automobile preposition lamp light control method that provides of second embodiment of the invention;
Fig. 3 is the realization flow figure of the automobile preposition lamp light control method that provides of third embodiment of the invention;
Fig. 4 is the frame construction drawing of the automobile preposition lamp light control system that provides of the embodiment of the present invention.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, 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, is not intended to limit the present invention.
Below in conjunction with specific embodiment, specific implementation of the present invention is described in detail:
embodiment mono-:
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 lists the part relevant to first embodiment of the invention, and 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 forward super sonic;
Step S104, reflects the state of kinematic motion of this hypracoustic object from being transmitted into the time difference judgement being reflected back according at least twice continuous this super sonic;
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, the brightness of controlling this automobile preposition light according to this time is reduced to minimum predetermined brightness value when meeting.
It should be noted that: in all embodiment of the present invention, the automobile preposition lamplight brightness of indication refers to the brightness of dazzle light.
embodiment bis-:
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 lists the part relevant to second embodiment of the invention, and details are as follows:
As shown in Figure 2, as second embodiment of the invention, in embodiment mono-, according to testing result, judge whether that the step of the preposition light of opening automobile specifically comprises the following steps:
Step S1021, when the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, opens the preposition light of this automobile;
Step S1022, when the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, closes the preposition light of this automobile.
In embodiments of the present invention, by testing environment, be related to that brightness judges whether to open preposition light and not only can automatically open at night preposition light, dark weather is opened preposition light automatically by day.
As one embodiment of the invention, that the state of kinematic motion of this object comprises is static, 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 of calculating the meeting required time of this automobile and this object in embodiment mono-is specially:
According to following formula, calculate the kinematic velocity of this object;
；
According to following formula, calculate the time of cars meeting T of this automobile and this object;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is that super sonic is transmitted into the time difference being reflected back toward for the first time, and T2 is that super sonic is transmitted into the time difference being launched back for the second time.
In embodiments of the present invention, take the calculating that twice reception super sonic carries out as example, when being transmitted into the time of reception with repeated ultrasonic ripple while calculating, after calculating with adjacent two times, average.
embodiment tri-:
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 lists the part relevant to third embodiment of the invention, and details are as follows:
As shown in Figure 3, as one embodiment of the invention, the step that the brightness of controlling this automobile preposition light according to this time in embodiment mono-is reduced to minimum predetermined brightness value when meeting 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 intermediate luminance value range of this highest brightness value and minimum brightness value;
Step S1063, every a brightness degree of unit time reduction automobile preposition light.
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 travel and make with speed change; only need to improve method of calculating, automobile and/or this object are also to belong to the scope of protection of the invention with the speed change control method of preposition light while making of travelling.
In embodiments of the present invention, according to ambient light, brightness judges whether to open preposition light and not only can open at night preposition light, also can automatically open preposition light when weather darkness by day, by transmitting super sonic, can judge whether meeting vehicle, when having meeting vehicle, slowly reduce the brightness of preposition light to default low brightness values, thereby can not cause traffic accident because of high light blinding meeting driver.Solve existing automobile and can not automatically identify and whether have meeting vehicle and always with strong illumination road surface, cause meeting driver blind, thereby easily caused the problem that causes traffic accident.
As shown in Figure 4, the embodiment of the present invention also provides a kind of automobile preposition lamp light control system 100, comprising:
Detecting unit 101, for detection of ambient light brightness;
The 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 forward super sonic;
The second judging unit 105, for reflecting the state of kinematic motion of this hypracoustic object from being transmitted into the time difference judgement being reflected back according at least twice continuous this super sonic;
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, is reduced to minimum predetermined brightness value when the meeting for the brightness of controlling this automobile preposition light according to this time.
The embodiment of the present invention is the system claim corresponding with above-mentioned automobile preposition lamp light control method, and its work outflow and control principle are corresponding one by one, at this, are not just repeating.
It should be noted that: system 100 comprises super sonic receiving element.
As one embodiment of the invention, the first judging unit 102 specifically for:
When the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, open the preposition light of this automobile;
When the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, close the preposition light of this automobile.
As one embodiment of the invention, that the state of kinematic motion of this object comprises is static, 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:
According to following formula, calculate the kinematic velocity of this object;
；
According to following formula, calculate the time of cars meeting T of this automobile and this object;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is that super sonic is transmitted into the time difference being reflected back toward for the first time, and T2 is that super sonic is transmitted into the time difference being launched back for the second time.
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 intermediate luminance value range of this highest brightness value and minimum brightness value is divided into [T]+1 brightness degree;
Every the unit time, reduce a brightness degree of automobile preposition light.
In embodiments of the present invention, according to ambient light, brightness judges whether to open preposition light and not only can open at night preposition light, also can automatically open preposition light when weather darkness by day, by transmitting super sonic, can judge whether meeting vehicle, when having meeting vehicle, slowly reduce the brightness of preposition light to default low brightness values, thereby can not cause traffic accident because of high light blinding meeting driver.Solve existing automobile and can not automatically identify and whether have meeting vehicle and always with strong illumination road surface, cause meeting driver blind, thereby easily caused the problem that causes traffic accident.
It will be appreciated by those skilled in the art that the unit that comprises for above-described embodiment is just divided according to function logic, but be not limited to above-mentioned division, as long as can realize corresponding function; 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 skills it is also understood that, the all or part of step realizing in above-described embodiment method is to come the hardware that instruction is relevant to complete by program, described program can be in being 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 modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in 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 forward super sonic;
According at least twice continuous described super sonic, from being transmitted into the time difference judgement being reflected back, reflect the state of kinematic motion of described hypracoustic object;
When described object and described automobile move in the opposite direction, calculate the meeting required time of described automobile and described object;
The brightness of controlling described automobile preposition light according to the described time is reduced to minimum predetermined brightness value when meeting.
2. the method for claim 1, is characterized in that, describedly according to testing result, judges whether that the step of the preposition light of opening automobile specifically comprises the following steps:
When the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, open the preposition light of described automobile;
When the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, close the preposition light of described automobile.
3. the method for claim 1, is characterized in that, that the state of kinematic motion of described object comprises is static, 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:
According to following formula, calculate the kinematic velocity of described object;
；
According to following formula, calculate the time of cars meeting T of described automobile and described object;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is that super sonic is transmitted into the time difference being reflected back toward for the first time, and T2 is that super sonic is transmitted into the time difference being launched back for the second time.
5. the method for claim 1, is characterized in that, the step that the brightness of controlling described automobile preposition light according to the described time is reduced to minimum predetermined brightness value when meeting 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 intermediate luminance value range of described highest brightness value and minimum brightness value is divided into [T]+1 brightness degree;
Every the unit time, reduce a brightness degree of automobile preposition light.
6. an automobile preposition lamp light control system, is characterized in that, described system comprises:
Detecting unit, for detection of ambient light brightness;
The 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 forward super sonic;
The second judging unit, for reflecting the state of kinematic motion of described hypracoustic object from being transmitted into the time difference judgement being reflected back according at least twice continuous described super sonic;
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, is reduced to minimum predetermined brightness value when the meeting for the brightness of controlling described automobile preposition light according to the described time.
7. system as claimed in claim 6, is characterized in that, described the first judging unit specifically for:
When the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, open the preposition light of described automobile;
When the ambient light brightness detecting is when opening the default light luminance threshold value of preposition light, close the preposition light of described automobile.
8. system as claimed in claim 6, is characterized in that, that the state of kinematic motion of described object comprises is 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:
According to following formula, calculate the kinematic velocity of described object;
；
According to following formula, calculate the time of cars meeting T of described automobile and described object;
；
Wherein, V1 represents the moving velocity of automobile, and V2 represents the kinematic velocity of object, and T1 is that super sonic is transmitted into the time difference being reflected back toward for the first time, and T2 is that super sonic is transmitted into the time difference being launched back for the second time.
10. the system as claimed in claim 1, 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 intermediate luminance value range of described highest brightness value and minimum brightness value is divided into [T]+1 brightness degree;
Every the unit time, reduce a brightness degree of automobile preposition light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410249039.7A CN104057872B (en) | 2014-06-08 | 2014-06-08 | Car prepositive light control method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410249039.7A CN104057872B (en) | 2014-06-08 | 2014-06-08 | Car prepositive light control method and system |
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| CN104057872A true CN104057872A (en) | 2014-09-24 |
| CN104057872B CN104057872B (en) | 2015-06-17 |
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| CN201410249039.7A Active CN104057872B (en) | 2014-06-08 | 2014-06-08 | Car prepositive light control method and system |
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| CN106740427A (en) * | 2016-12-05 | 2017-05-31 | 深圳市车音网科技有限公司 | Lights of vehicle controls based reminding method and device |
| CN107117094A (en) * | 2017-04-21 | 2017-09-01 | 晋江弘钧电子科技有限公司 | Suitable for the automobile lamp control method at cloudy day |
| CN107284238A (en) * | 2017-05-11 | 2017-10-24 | 汪超 | The method and automobile of a kind of automobile driving speed control |
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| CN104057872B (en) | 2015-06-17 |
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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. |
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