A vehicle lamp control method and system

By installing light-sensing elements in the front and rear cameras of the vehicle to obtain ambient light information, and using a logic controller to control the on and off of the headlights, the problem of visual darkness caused by the inability of light sensors to effectively detect changes in light is solved, and the headlights can respond quickly and provide safety warnings.

CN119840508BActive Publication Date: 2026-01-02CHERY AUTOMOBILE CO LTD
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202510004519.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2026-01-02
Estimated Expiration
2045-01-02

AI Technical Summary

Technical Problem

In existing vehicle lighting control systems, the light sensor cannot effectively detect when a vehicle enters a tunnel. This causes the driver to experience a brief period of visual darkness upon entering the tunnel, potentially leading to a safety accident.

Method used

By installing light-sensing elements inside the front and rear cameras of the vehicle, ambient light information of the front and rear of the vehicle is obtained. The logic controller is used to control the opening and closing of the headlights and taillights, replacing the traditional light sensor, so as to realize the rapid opening and closing of the vehicle lights.

Benefits of technology

It enables vehicles to quickly turn on and off their lights, ensuring driving safety, reducing costs, and alerting vehicles behind to avoid accidents.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119840508B_ABST
    Figure CN119840508B_ABST
Patent Text Reader

Abstract

The application discloses a kind of car light control method and system, it is related to vehicle management technical field, comprising: obtaining headlight ambient light information, in response to the headlight ambient light information indicates light change dark, turn on headlamp and tail light;Obtain headlight ambient light information, in response to the headlight ambient light information indicates light change bright, close headlamp;While obtaining tail light ambient light information, in response to the tail light ambient light information indicates light change bright, close tail light.The application utilizes the photosensitive element in front and rear camera to realize the control of car light opening light and closing light, instead of light sensor, can guarantee driving safety, and reduce cost.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle management, and in particular to a vehicle light control method and system. BACKGROUND

[0002] The light control of the existing vehicle is generally based on the sensing signal of the light sensor to control the opening and closing. The light sensor is arranged at the top of the front windshield of the vehicle. When entering the tunnel, the light sensor does not sense the change of light, and the vehicle light is not turned on. This will cause the driver to have a short visual dark state at the moment of entering the tunnel. If there are vehicles or personnel in the tunnel at this time, the driver will not be able to visually discover them, which will lead to safety accidents or hidden dangers.

[0003] There is also a way of not using a light sensor in the prior art. For example, Chinese invention patent CN108621913A discloses a control system for turning on the high beam before the vehicle enters the tunnel. The front camera collects the front road condition image, and then the signal processor processes the image. When the front is a tunnel, the high beam can be turned on in advance before the vehicle enters the tunnel. The above scheme is based on the image information of the front camera and is only used to control the high beam. It cannot play a reminding role for the rear vehicle during the process of entering and leaving the tunnel, which may lead to rear-end problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a vehicle light control method and system. The light opening and light closing of the vehicle light are realized by using the photosensitive elements inside the front and rear cameras, instead of the light sensor, which can ensure driving safety and reduce costs.

[0005] In order to achieve the above purpose, the present application is realized by the following technical scheme:

[0006] In a first aspect, the embodiments of the present application provide a vehicle light control method, comprising:

[0007] Obtaining vehicle head environment light information, and in response to the vehicle head environment light information indicating that the light is getting dark, turning on the front headlight and the tail light.

[0008] Obtaining vehicle head environment light information, and in response to the vehicle head environment light information indicating that the light is getting bright, turning off the front headlight. At the same time, obtaining vehicle tail environment light information, and in response to the vehicle tail environment light information indicating that the light is getting bright, turning off the tail light.

[0009] As a further implementation manner, the obtaining of the vehicle head environment light information comprises:

[0010] Obtaining the environment light information detected by the photosensitive element built in the front camera.

[0011] As a further implementation manner, the acquiring the vehicle tail ambient light information comprises:

[0012] acquiring the ambient light information detected by a photosensitive element built in the rear camera.

[0013] As a further implementation manner, the acquiring the vehicle head ambient light information is configured to:

[0014] acquiring the vehicle head ambient light information when the vehicle enters a tunnel and when the vehicle exits the tunnel.

[0015] As a further implementation manner, the acquiring the vehicle tail ambient light information is configured to:

[0016] acquiring the vehicle tail ambient light information when the vehicle exits the tunnel.

[0017] As a further implementation manner, the acquiring the vehicle tail ambient light information, in response to the vehicle tail ambient light information indicating that the light is getting dark, keeps the tail light on.

[0018] In a second aspect, embodiments of the present application further provide a vehicle light control system, comprising:

[0019] a first photosensitive element built in a front camera for sensing vehicle head ambient light;

[0020] a second photosensitive element built in a rear camera for sensing vehicle tail ambient light;

[0021] a logic controller for receiving vehicle head ambient light information sent by the first photosensitive element and vehicle tail ambient light information sent by the second photosensitive element, and controlling the opening and closing of the headlight and the tail light according to the information.

[0022] As a further implementation manner, the logic controller is configured to:

[0023] controlling the headlight and the tail light to be turned on when the vehicle head ambient light information indicates that the light is getting dark;

[0024] controlling the headlight to be turned off when the vehicle head ambient light information indicates that the light is getting bright;

[0025] controlling the tail light to be turned off when the vehicle tail ambient light information indicates that the light is getting bright.

[0026] In a third aspect, embodiments of the present application further provide an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer program is executed by the processor to implement the vehicle light control method.

[0027] In a fourth aspect, embodiments of the present application also provide a computer readable storage medium, which, when a computer program is executed by one or more processors, implements the vehicle lamp control method.

[0028] The beneficial effects of the present application are as follows:

[0029] The vehicle lamp control method of the present application can ensure the quick opening and timely closing of the vehicle lamp, and can remind the following vehicle, thereby ensuring the driving safety.

[0030] The present application uses the photosensitive element inside the vehicle camera, and when the front camera enters the tunnel, the inside of the camera can sense the insufficient light, and the camera light compensation function is started at the same time, and the front headlamp and the tail lamp are opened, so as to realize the opening of the vehicle lamp. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The embodiments of these drawings are set forth to explain the present application and do not limit the present application in any manner.

[0032] Figure 1 is a control method flowchart according to one or more embodiments of the present application;

[0033] Figure 2 is a control system block diagram according to one or more embodiments of the present application. DETAILED DESCRIPTION

[0034] It should be noted that the following detailed description is illustrative only and is not intended to limit the present application in any way. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0035] Embodiment 1:

[0036] The present embodiment provides a vehicle lamp control method, as shown in Figure 1 The present embodiment provides a vehicle lamp control method, as shown in

[0037] The present embodiment provides a vehicle lamp control method, as shown in

[0038] Acquire the headlight ambient light information, in response to the headlight ambient light information indicating that the light becomes brighter, turn off the front headlight; at the same time, acquire the tail light ambient light information, in response to the tail light ambient light information indicating that the light becomes brighter, turn off the tail light.

[0039] The car light control method of the embodiment is applicable to the scenario of the vehicle entering and exiting the tunnel, the headlight ambient light is perceived by the photosensitive element of the front camera, and the tail light ambient light is perceived by the photosensitive element of the rear camera; by using the photosensitive element inside the vehicle camera instead of the light sensor, the demand for photosensitive elements of the vehicle can be reduced, and the cost can be controlled.

[0040] The specific control method is:

[0041] When the vehicle enters the tunnel, the photosensitive element built-in the front camera identifies that the light becomes dim, and transmits the light change signal to the logic controller. The logic controller receives the signal and powers the front headlight and the tail light according to the preset light-on mode, and starts the front headlight and the tail light. Compared with the traditional light sensor, the light can be started 1-3 seconds in advance, and the light-on rate of the vehicle entering the tunnel is improved.

[0042] When the vehicle exits the tunnel, the photosensitive element built-in the front camera identifies that the light becomes bright, and transmits the light change signal to the logic controller. The logic controller receives the signal and powers the front headlight and the tail light according to the preset light-on mode, and starts the front headlight and the tail light. Compared with the traditional light sensor, the light can be started 1-3 seconds in advance, and the light-on rate of the vehicle entering the tunnel is improved.

[0043] The embodiment identifies the light change through the photosensitive element of the camera, controls the front headlight and the tail light according to the identification of the front and rear photosensitive elements, can ensure the speed of turning on the car light, and can also be turned off in time; and the embodiment turns on the tail light when entering the tunnel, and turns off the tail light when exiting the tunnel, which can remind the following vehicle and ensure the driving safety.

[0044] Of course, the car light control method of the embodiment can also be applied to other scenarios:

[0045] When the vehicle drives in the sunset, the photosensitive element built-in the front camera identifies that the light becomes dim, and transmits the light change signal to the logic controller. The logic controller receives the signal and powers the front headlight and the tail light according to the preset light-on mode, and starts the front headlight and the tail light. The logic controller will identify the light signal identified by the sensing element built-in the rear camera, and if the provided signal light is also dim, the tail light will not be intervened.

[0046] For the vehicle passing through the street lamp and the oncoming car light, the light change signal is transmitted to the logic controller through the built-in photosensitive element of the front camera and the rear camera. The logic controller receives the signal and compares the light source according to the preset judgment logic. The light interval or the light direction is identified as a point, and the front headlight and the tail light are continuously powered on to achieve the purpose of only being turned on.

[0047] Embodiment 2:

[0048] The embodiment provides a vehicle lamp control system, as shown in Figure 2 The first photosensitive element is built in the front camera and is used for sensing the headlight environment light. The second photosensitive element is built in the rear camera and is used for sensing the tail light environment light. The logic controller is used for controlling the opening and closing of the front headlight and the tail light according to the environment light information obtained by the first photosensitive element and the second photosensitive element.

[0049] For the tunnel scene, when the vehicle enters the tunnel, the first photosensitive element identifies that the headlight light is dark, and the logic controller controls the front headlight and the tail light to be turned on. When the vehicle exits the tunnel, the first photosensitive element identifies that the headlight light is bright, and the logic controller controls the front headlight to be turned off. At this time, the logic controller judges the tail light identified by the second photosensitive element. If the light is still dark, it means that the vehicle has not completely exited the tunnel, and the tail light is not turned off. If the light is bright, it means that the vehicle has exited the tunnel, and the tail light is turned off.

[0050] The embodiment realizes the control of the opening and closing of the vehicle lamp through the cooperation of the first photosensitive element, the second photosensitive element and the logic controller, and improves the expansion of the use range of the camera function.

[0051] Embodiment 3:

[0052] The embodiment provides an electronic device, which comprises a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the vehicle lamp control method in the embodiment 1 is realized.

[0053] The memory mentioned in the embodiment can be a volatile memory or a non-volatile memory. The non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory. The volatile memory can be a random access memory (RAM).

[0054] The processor can be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), a PLA (Programmable Logic Array).

[0055] Embodiment 4:

[0056] The embodiment provides a computer readable storage medium, when a computer program is executed by one or more processors, a vehicle lamp control method described in embodiment 1 is realized.

[0057] The above merely provides preferred embodiments of the present application but is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modified, equivalent replaced, improved, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle lamp control method characterized by, The method comprises: acquiring headlight ambient light information, and turning on the headlight and the tail light in response to the headlight ambient light information indicating that the light is getting dimmer; acquiring headlight ambient light information, and turning off the headlight in response to the headlight ambient light information indicating that the light is getting brighter; simultaneously acquiring tail light ambient light information, and turning off the tail light in response to the tail light ambient light information indicating that the light is getting brighter; the acquiring of the headlight ambient light information is configured to: acquire the headlight ambient light information when the vehicle enters a tunnel and when the vehicle exits the tunnel; the acquiring of the tail light ambient light information is configured to: acquire the tail light ambient light information when the vehicle exits the tunnel; acquiring tail light ambient light information, and keeping the tail light on in response to the tail light ambient light information indicating that the light is getting dimmer; Through the control of the headlight and the tail light, the rapid turning on and timely turning off of the vehicle light can be ensured, and the rear vehicle can be reminded to ensure the driving safety.

2. The vehicle lamp control method according to claim 1, characterized by, The acquiring of the headlight ambient light information comprises: acquiring the ambient light information detected by a photosensitive element built in the front camera.

3. The vehicle lamp control method according to claim 1 or 2, characterized by, The acquiring of the tail light ambient light information comprises: acquiring the ambient light information detected by a photosensitive element built in the rear camera.

4. A vehicle lamp control system which implements the vehicle lamp control method according to any one of claims 1 to 3, characterized by The method comprises: a first photosensitive element built in the front camera and used for sensing the headlight ambient light; a second photosensitive element built in the rear camera and used for sensing the tail light ambient light; a logic controller used for receiving the headlight ambient light information sent by the first photosensitive element and the tail light ambient light information sent by the second photosensitive element, and controlling the turning on and turning off of the headlight and the tail light according to the information.

5. The vehicle lamp control system of claim 4, wherein The logic controller is configured to: control the headlight and the tail light to turn on when the headlight ambient light information indicates that the light is getting dimmer; control the headlight to turn off when the headlight ambient light information indicates that the light is getting brighter; control the tail light to turn off when the tail light ambient light information indicates that the light is getting brighter.

6. An electronic device, comprising: The electronic device comprises a memory and a processor, the memory stores a computer program, and the computer program is executed by the processor to implement the vehicle light control method according to any one of claims 1-3.

7. A computer readable storage medium characterized in that, When the computer program is executed by one or more processors, the vehicle light control method according to any one of claims 1-3 is implemented.

Citation Information

Patent Citations

  • Control system for turning on headlamp of vehicle before driving into tunnel

    CN108621913A

  • Automatic lamplight control system based on visual fusion algorithm and control method thereof

    CN116887483A

  • Automatic automobile lamp control system

    CN202022139U

  • Automatic on / off circuits for switching head lights and tail lights in automobile

    KR1020010011942A