CN106696814A - Car light control method and device - Google Patents

Abstract

A vehicle light control method and device, wherein the vehicle light control method includes: detecting the light intensity outside the vehicle; acquiring a preset interval corresponding to the light intensity; acquiring a vehicle light corresponding to the preset interval mode; obtain the switching time corresponding to switching to the car light mode corresponding to the light intensity; after the switching time, switch the car light mode of the car light to correspond to the preset interval corresponding to the light intensity The car light mode; the car light mode is related to the switch state of the low beam, and the switching time between different car light modes is different. Through the vehicle light control method and device, the user's driving demand for vehicle light control can be better met.

Description

Vehicle light control method and device

technical field

The invention relates to the technical field of vehicle control, in particular to a method and device for controlling vehicle lights.

Background technique

When the light is low, the car often needs to turn on the low beam, and when the light is strong, the low beam can be turned off to achieve the purpose of energy saving. The automatic light control function of modern vehicles can conveniently and automatically realize this operation function, without requiring the user to frequently operate the low beam switch, thereby improving the convenience and comfort of driving.

However, the existing automatic lighting control system of vehicles has problems such as slow response to the working environment and poor user experience, so it cannot meet the actual application needs. For example, the on/off control of the car lights through the current system time cannot be applied to different regions.

Contents of the invention

The problem to be solved by the embodiments of the present invention is how to better meet the user's driving requirements for vehicle light control.

In order to solve the above problems, an embodiment of the present invention provides a vehicle light control method, including:

Detect the light intensity outside the car;

Acquiring a preset interval corresponding to the light intensity;

Obtaining the vehicle light mode corresponding to the preset interval;

Obtain the switching time corresponding to switching to the car light mode corresponding to the light intensity;

After the switching time, switch the lamp mode of the lamp to the lamp mode corresponding to the preset interval corresponding to the light intensity;

The vehicle light mode is related to the switching state of the low beam light, and the switching time between different vehicle light modes is different.

Optionally, after the acquisition of the preset interval corresponding to the light intensity, it also includes: judging whether the holding time of the light intensity in the corresponding preset interval exceeds the preset holding time, when the light intensity When the holding time in the corresponding preset interval exceeds the preset holding time, the acquisition of the switching time corresponding to the vehicle light mode corresponding to the light intensity is performed.

Optionally, said obtaining a preset interval corresponding to said light intensity includes:

performing analog-to-digital conversion on the light intensity, and outputting a voltage signal corresponding to the light intensity;

According to the voltage signal, a preset interval corresponding to the light intensity is judged.

Optionally, after outputting the voltage signal corresponding to the light intensity, it also includes:

judging whether the voltage signal falls within a preset range;

When the voltage signal is outside the preset range, it is determined that the light sensor is wrong, and the low beam headlights of the vehicle are turned on;

When the voltage signal is within the preset range, the operation of judging the preset interval corresponding to the light intensity is performed.

Optionally, the car light modes include: bright mode, day mode, night mode and dark mode;

When the vehicle light mode is switched to a bright mode or a daytime mode, turn off the dipped beam;

When the vehicle light mode is switched to night mode or dark mode, the low beam is turned on.

In order to solve the above technical problems, the embodiment of the present invention also discloses a vehicle light control device, including:

The detection unit is used to detect the light intensity outside the vehicle;

a first acquisition unit, configured to acquire a preset interval corresponding to the light intensity;

a second acquiring unit, configured to acquire the vehicle light mode corresponding to the preset interval;

The third acquisition unit is used to acquire the switching time corresponding to switching to the vehicle light mode corresponding to the light intensity;

A switching unit, configured to switch the light mode of the vehicle light to the vehicle light mode corresponding to the preset interval corresponding to the light intensity after the switching time has elapsed;

The vehicle light mode is related to the switching state of the low beam light, and the switching time between different vehicle light modes is different.

Optionally, the vehicle light control device also includes:

A judging unit, configured to judge whether the holding time of the light intensity in the corresponding preset interval exceeds the preset holding time; when the holding time of the light intensity in the corresponding preset interval exceeds the preset holding time The acquisition of the switching time corresponding to the vehicle light mode corresponding to the light intensity is performed by the switching unit.

Optionally, the first acquisition unit includes:

A conversion subunit, configured to perform analog-to-digital conversion on the light intensity, and output a voltage signal corresponding to the light intensity;

The first judging subunit is configured to judge a preset interval corresponding to the light intensity according to the voltage signal.

Optionally, the vehicle light control device also includes:

The second judging subunit is used to judge whether the voltage signal falls within a preset range;

When the voltage signal is outside the preset range, it is determined that the light sensor is wrong, and the low beam headlights of the vehicle are turned on;

When the voltage signal is within the preset range, the operation of judging the preset interval corresponding to the light intensity is performed.

Optionally, the car light modes include: bright mode, day mode, night mode and dark mode;

When the vehicle light mode is switched to a bright mode or a daytime mode, turn off the dipped beam;

When the vehicle light mode is switched to night mode or dark mode, the low beam is turned on.

Compared with the prior art, the technical solutions of the embodiments of the present invention have the following advantages:

By detecting the light intensity and obtaining the corresponding light mode, the light can be turned on or off according to the external light conditions during the driving of the vehicle, so it can meet the operating requirements of the vehicle under actual driving conditions. At the same time, by comparing the current lamp mode of the vehicle with the lamp mode to be switched, it is possible to obtain the switching time between the two that can be set by the user, so that the user's operating habits can be taken into account. Therefore, in summary, the vehicle light control method of the embodiment of the present invention can better meet the user's driving demand for vehicle light control.

Further, by detecting whether the voltage signal corresponding to the light intensity is within a preset range, it is determined whether there is an error in the light sensor. When an error occurs in the light sensor, since the vehicle may be driving in a relatively dark environment on the road surface at this time, the operation of turning on the low beam headlights of the vehicle is performed to ensure driving safety.

Further, by setting the holding time, only when the external light intensity of the vehicle is within a relatively stable range within a certain period of time, can the vehicle switch to the corresponding vehicle light mode, which can effectively avoid the sudden change of light intensity. Flicker phenomenon, improving user experience and longevity of vehicle components.

Description of drawings

FIG. 1 is a flow chart of a method for controlling a vehicle light according to an embodiment of the present invention;

FIG. 2 is a preset corresponding relationship between light intensity and output voltage in an embodiment of the present invention;

Fig. 3 is a flow chart of a vehicle light control method according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a vehicle light control device according to an embodiment of the present invention.

detailed description

The automatic light control function of modern vehicles can conveniently and automatically realize the switch control of the low beam headlights, which saves the user from frequently operating the low beam switch, thus improving the convenience and comfort of driving. However, due to the complex working conditions of automobiles, the requirements for automatic control of automobile lights are different in different road conditions or in different regions. However, the existing automatic lighting control system of vehicles has problems such as slow response to the working environment and poor user experience, so it cannot meet the actual application needs. For example, the on/off control of the car lights through the current system time cannot be applied to different regions. At the same time, the opening and closing of the lighting control system is highly subjective, and different users have their own different operating habits and requirements for when to turn on the light and when to turn off the light. This requires the vehicle's automatic lighting control system to be able to automatically turn on or off the lights quickly and accurately while taking into account different driving conditions and the special needs of different users.

In the embodiment of the present invention, by detecting the light intensity and obtaining the corresponding vehicle light mode, the vehicle light can be turned on or off according to the external light conditions while the vehicle is running, thus meeting the operating requirements of the vehicle under actual driving conditions. At the same time, by comparing the current vehicle light mode and the vehicle light mode to be switched, the switching time between the two can be obtained, which can be set by the user, thus taking into account the user's operating habits.

In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

An embodiment of the present invention provides a method for controlling a vehicle light. Referring to FIG. 1, the vehicle light control method may include the following steps:

Step S101, detecting the light intensity outside the vehicle.

In a specific implementation, the light intensity outside the vehicle may be detected by a light sensor. The light sensor converts the value of the detected light intensity into a corresponding voltage signal through sampling and analog-to-digital conversion, and different voltage signals represent different light intensities.

In the above specific implementation, in order to eliminate the individual differences of the light sensors, so that different light sensors output the same voltage signal under the same light intensity outside the vehicle, it can be based on the standard between the preset light intensity and the output voltage. The corresponding relationship of the light sensor is detected and corrected. For example, as shown in FIG. 2 is the corresponding relationship between the standard light intensity and output voltage: y=kx+b, where k is the slope of the curve shown in FIG. 2, and b is the intersection point of the graph and the y-axis. By sampling and measuring the voltage output value of the light sensor under different standard light sources, and fitting it with the curve shown in Figure 2, the parameters k and b can be obtained, so that the light sensor can operate under different light intensities The voltage output value is the same as the curve shown in Figure 2, eliminating individual differences in light sensors.

Step S102, acquiring a preset interval corresponding to the light intensity.

In a specific implementation, the voltage signal output by the light sensor may be divided into a plurality of corresponding preset intervals, and then the preset interval corresponding to the light intensity may be obtained by determining the preset interval corresponding to the voltage signal.

In the above specific implementation, when the voltage signal is outside the preset range, it may be determined that the light sensor is faulty. When an error occurs in the light sensor, since the vehicle may be driving in a relatively dark environment on the road surface at this time, the operation of turning on the low beam headlights of the vehicle is performed to ensure driving safety. When the voltage signal is within the preset range, an operation of determining a preset interval corresponding to the light intensity according to the voltage signal is performed.

Step S103, acquiring the vehicle light mode corresponding to the preset interval.

In a specific implementation, the above-mentioned vehicle light modes are related to the switch state of the low beam light, and the switching time between different vehicle light modes is different. For example, the car light modes may include four types: bright mode, day mode, night mode and dark mode. Among them, in the bright mode and the day mode, the low beam of the vehicle is turned off, and in the night mode and the dark mode, the low beam of the vehicle is turned on.

As shown in Table 1, the light intensity corresponding to the above four car light modes:

light intensity headlight mode C1≤C bright mode C2≤C<C1 day mode C3≤C<C2 night mode C4≤C<C3 dark mode

Table 1

Wherein, C is the currently detected light intensity, and C1, C2, C3, and C4 are preset light intensity thresholds.

As shown in Table 2, it is the switching time between the above four car light modes:

Table 2

Wherein, t1, t2 and t3 are preset switching times.

In the above specific implementation, the light intensity thresholds C1, C2, C3, and C4 corresponding to the above four car light modes and the switching times t1, t2, and t3 between them can be customized by the user through the corresponding terminal control device. , to meet the user's operating habits and practical application needs.

It can be understood that the vehicle light modes may include other numbers, and the range division of the corresponding light intensities and the switching time between them may also be set separately according to the needs of practical applications. The four car light modes in this specific implementation are just an example, which is used to illustrate the design idea of this embodiment, and it does not limit the protection scope of this embodiment of the present invention.

Step S104, acquiring the switching time corresponding to switching to the vehicle light mode corresponding to the light intensity.

Step S105, after the switching time elapses, switch the light mode of the vehicle light to the vehicle light mode corresponding to the preset interval corresponding to the light intensity.

Using the above-mentioned vehicle light control method, the driving environment of the vehicle is judged by detecting the light intensity outside the vehicle, which is more in line with the requirements of the actual driving conditions of the vehicle. At the same time, by setting the light modes corresponding to different light intensities, and the switching time of turning on or off the lights in different modes is different, so that when the external environment of the vehicle changes, the sensitivity of the low beam switch is different. Since the switching time can be customized by the user, it can take into account the user's operating habits and usage requirements.

The embodiment of the invention also discloses another vehicle light control method. As shown in Figure 3, the vehicle light control method may include the following steps:

Step S201, detecting the light intensity outside the vehicle.

In a specific implementation, the light intensity outside the vehicle may be detected by a light sensor. The light sensor converts the value of the detected light intensity into a corresponding voltage signal through sampling and analog-to-digital conversion, and different voltage signals represent different light intensities.

In the above specific implementation, in order to eliminate the individual differences of the light sensors, so that different light sensors output the same voltage signal under the same light intensity outside the vehicle, it can be based on the standard between the preset light intensity and the output voltage. The corresponding relationship of the light sensor is detected and corrected. For example, as shown in FIG. 2 is the corresponding relationship between the standard light intensity and output voltage: y=kx+b, where k is the slope of the curve shown in FIG. 2, and b is the intersection point of the graph and the y-axis. By sampling and measuring the voltage output value of the light sensor under different standard light sources, and fitting it with the curve shown in Figure 2, the parameters k and b can be obtained, so that the light sensor can operate under different light intensities The voltage output value is the same as the curve shown in Figure 2, eliminating individual differences in light sensors.

Step S202, acquiring a preset interval corresponding to the light intensity.

In a specific implementation, the voltage signal output by the light sensor may be divided into a plurality of corresponding preset intervals, and then the preset interval corresponding to the light intensity may be obtained by determining the preset interval corresponding to the voltage signal.

In the above specific implementation, when the voltage signal is outside the preset range, it may be determined that the light sensor is faulty. When an error occurs in the light sensor, since the vehicle may be driving in a relatively dark environment on the road surface at this time, the operation of turning on the low beam headlights of the vehicle is performed to ensure driving safety. When the voltage signal is within the preset range, an operation of determining a preset interval corresponding to the light intensity according to the voltage signal is performed.

Step S203, acquiring the vehicle light mode corresponding to the preset interval.

In a specific implementation, the above-mentioned vehicle light modes are related to the switch state of the low beam light, and the switching time between different vehicle light modes is different. For example, the car light modes may include four types: bright mode, day mode, night mode and dark mode. Among them, in the bright mode and the day mode, the low beam of the vehicle is turned off, and in the night mode and the dark mode, the low beam of the vehicle is turned on.

As shown in Table 1 and Table 2 above, they are the light intensities corresponding to the above four car light modes, and the switching time between the above four car light modes: where, C is the currently detected light intensity, C1, C2, C3 and C4 are preset light intensity thresholds; t1, t2 and t3 are preset switching times.

In the above specific implementation, the light intensity thresholds C1, C2, C3, and C4 corresponding to the above four car light modes and the switching times t1, t2, and t3 between them can be customized by the user through the corresponding terminal control device. , to meet the user's operating habits and practical application needs.

It can be understood that the vehicle light modes may include other numbers, and the range division of the corresponding light intensities and the switching time between them may also be set separately according to the needs of practical applications. The four car light modes in this specific implementation are just an example, which is used to illustrate the design idea of this embodiment, and it does not limit the protection scope of this embodiment of the present invention.

Step S204, judging whether the holding time for which the light intensity is in the corresponding preset interval exceeds a preset holding time.

As shown in Table 3, it is the corresponding relationship between the lamp mode and the holding time:

headlight mode hold time bright mode T1 day mode T2 night mode T3 dark mode T4

table 3

Wherein, T1, T2, T3 and T4 are preset holding times. In a specific implementation, the preset holding time can be customized by the user through a corresponding device.

When the holding time of the light intensity in the corresponding preset interval exceeds the above-mentioned preset holding time, perform step S205; when the holding time of the light intensity in the corresponding preset interval does not exceed the preset holding time time, return to the step S201, and re-execute the detection of the light intensity outside the vehicle.

During the actual driving process of the vehicle, there may be sudden changes in the light intensity. For example, in the daytime, when the vehicle enters a tunnel or enters a forest, the vehicle can sense the sudden dimming of the external light intensity through the light sensor, and obtain the corresponding light mode according to the light intensity to turn on the vehicle. low beams. However, the distance of this tunnel or woods may be very short sometimes, so after passing through these road sections, the vehicle senses that the light intensity of the outside world suddenly becomes stronger, and it needs to turn off the low beam headlights through the corresponding car light mode. At this time, the flicker phenomenon caused by frequent switching of the low beam will affect the driving experience of the driver and passengers, and will also affect the service life of the components in the car light assembly. In the specific implementation, by setting the holding time, only when the external light intensity of the vehicle is within a relatively stable range within a certain period of time, it will switch to the corresponding car light mode, which can effectively avoid this problem and improve user performance. Experience and service life of vehicle components.

Step S205, acquiring the switching time corresponding to switching to the vehicle light mode corresponding to the light intensity.

In a specific implementation, the above-mentioned vehicle light modes are related to the switch state of the low beam light, and the switching time between different vehicle light modes is different. For example, car light mode A and car light mode B define the switch state of the low beam headlight as off, and car light mode B defines the light state of the low beam headlight as on, and car light mode A, car light mode B and car light mode The switching time between the lamp modes C is different, so the vehicle can determine the lamp mode corresponding to the current actual light intensity outside the vehicle, and then according to the difference between the current lamp mode and the lamp mode corresponding to the current actual light intensity outside the vehicle Switching time between them, do the switching between the corresponding light modes.

Step S206, after the switching time elapses, switch the light mode of the vehicle light to the vehicle light mode corresponding to the preset interval corresponding to the light intensity.

The embodiment of the invention also discloses a vehicle light control device. As shown in FIG. 4, the vehicle light control device 40 may include:

A detection unit 401, configured to detect the light intensity outside the vehicle;

A first acquiring unit 402, configured to acquire a preset interval corresponding to the light intensity;

The second acquiring unit 403 is configured to acquire the vehicle light mode corresponding to the preset interval;

The third acquiring unit 404 is configured to acquire the switching time corresponding to switching to the vehicle light mode corresponding to the light intensity;

A switching unit 405, configured to switch the light mode of the vehicle light to the vehicle light mode corresponding to the preset interval corresponding to the light intensity after the switching time elapses;

The vehicle light mode is related to the switching state of the low beam light, and the switching time between different vehicle light modes is different.

In a specific implementation, the vehicle light control device may also include:

A judging unit 406, configured to judge whether the holding time of the light intensity in the corresponding preset interval exceeds the preset holding time; when the holding time of the light intensity in the corresponding preset interval exceeds the preset holding time , the acquisition of the switching time corresponding to switching to the vehicle light mode corresponding to the light intensity is performed by the switching unit 405 .

In a specific implementation, the first acquiring unit 402 may include:

A conversion subunit, configured to perform analog-to-digital conversion on the light intensity, and output a voltage signal corresponding to the light intensity;

The first judging subunit is configured to judge a preset interval corresponding to the light intensity according to the voltage signal.

In a specific implementation, the vehicle light control device may also include:

The second judging subunit is used to judge whether the voltage signal falls within a preset range;

When the voltage signal is outside the preset range, it is determined that the light sensor is wrong, and the low beam headlights of the vehicle are turned on;

When the voltage signal is within the preset range, the operation of judging the preset interval corresponding to the light intensity is performed.

In a specific implementation, the car light mode may include: bright mode, day mode, night mode and dark mode; when the car light mode is switched to bright mode or day mode, the low beam is turned off; when the Turn on low beam when the light mode is switched to night mode or dark mode.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: ROM , RAM, disk or CD, etc.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so the protection scope of the present invention should be based on the scope defined in the claims.

Claims (10)

1. a kind of vehicle light control method, it is characterised in that including：

Light intensity outside detection car；

Obtain pre-set interval corresponding with the light intensity；

Obtain car light pattern corresponding with the pre-set interval；

Acquisition is switched to the switching time corresponding to car light pattern corresponding with the light intensity；

By being corresponding with the light intensity by the car light pattern switching of car light after the switching time Car light pattern corresponding to pre-set interval；

During switching between car light pattern car light pattern related to the on off state of dipped headlight and different Between it is different.

2. vehicle light control method as claimed in claim 1, it is characterised in that the acquisition is strong with the light Spend after corresponding pre-set interval, also include：

Judge that whether the light intensity is located at the retention time of the corresponding pre-set interval more than default holding Time, default holding is exceeded when the retention time that the light intensity is located at the corresponding pre-set interval During the time, perform the acquisition and be switched to cutting corresponding to car light pattern corresponding with the light intensity Change the time.

3. vehicle light control method as claimed in claim 1, it is characterised in that the acquisition is strong with the light Spending corresponding pre-set interval includes：

Analog-to-digital conversion is carried out to the light intensity, voltage signal corresponding with the light intensity is exported；

According to the voltage signal, the pre-set interval corresponding to the light intensity is judged.

4. vehicle light control method as claimed in claim 3, it is characterised in that the output is strong with the light After spending corresponding voltage signal, also include：

Judge whether the voltage signal falls within a preset range；

When the voltage signal is located at outside the preset range, light sensor mistake, and opening vehicle are judged Dipped headlight；

When the voltage signal is located in the preset range, the judgement light intensity institute is performed right The operation of the pre-set interval answered.

5. vehicle light control method as claimed in claim 1, it is characterised in that the car light pattern includes：It is bright Bright pattern, day mode, Night and dark mode；

When being bright mode or day mode by the car light pattern switching, dipped headlight is closed；

When being Night or dark mode by the car light pattern switching, dipped headlight is opened.

6. a kind of car light controller, it is characterised in that including：

Detection unit, for detecting the light intensity outside car；

First acquisition unit, for obtaining pre-set interval corresponding with the light intensity；

Second acquisition unit, for obtaining car light pattern corresponding with the pre-set interval；

3rd acquiring unit, is switched to corresponding to car light pattern corresponding with the light intensity for obtaining Switching time；

Switch unit, for by after the switching time, by the car light pattern switching of car light be with it is described Car light pattern corresponding to the corresponding pre-set interval of light intensity；

During switching between car light pattern car light pattern related to the on off state of dipped headlight and different Between it is different.

7. car light controller as claimed in claim 6, it is characterised in that also include：

Judging unit, for judging that the retention time that the light intensity is located at the corresponding pre-set interval is It is no more than preset hold time；When the light intensity is located at the holding of the corresponding pre-set interval Between exceed preset hold time when, by the switch unit perform it is described acquisition be switched to and the light Switching time corresponding to the corresponding car light pattern of line strength.

8. car light controller as claimed in claim 6, it is characterised in that first acquisition unit includes：

Conversion subunit, for carrying out analog-to-digital conversion, output and the light intensity pair to the light intensity The voltage signal answered；

First judgment sub-unit, for according to the voltage signal, judging pre- corresponding to the light intensity If interval.

9. car light controller as claimed in claim 8, it is characterised in that also include：

Second judgment sub-unit, for judging whether the voltage signal falls within a preset range；

When the voltage signal is located at outside the preset range, light sensor mistake, and opening vehicle are judged Dipped headlight；

When the voltage signal is located in the preset range, the judgement light intensity institute is performed right The operation of the pre-set interval answered.

10. car light controller as claimed in claim 6, it is characterised in that the car light pattern includes：It is bright Bright pattern, day mode, Night and dark mode；

When being bright mode or day mode by the car light pattern switching, dipped headlight is closed；

When being Night or dark mode by the car light pattern switching, dipped headlight is opened.