A vehicle headlight failure compensation method, device and system

Abstract

The application relates to the technical field of LED, and particularly discloses a vehicle lamp fault compensation method, device and system, which acquires the current value of each LED of a vehicle lamp and the state of the vehicle lamp, judges whether the current state of the vehicle lamp is faulty, and further generates a fault compensation scheme, so that the problem that the overall brightness of the vehicle lamp is affected by the damage of the vehicle lamp and the driving safety is influenced is solved; when the vehicle lamp is faulty, light compensation can be carried out, which is favorable for improving the driving safety of the vehicle; meanwhile, when a small amount of LEDs in the vehicle lamp are damaged, the brightness of the vehicle lamp can be improved through compensation, the overall vehicle lamp does not need to be maintained or replaced, and the cost of the user can be reduced.

Description

Technical Field

[0001] This invention relates to the field of LED technology, and in particular to a method, device and system for compensating for vehicle headlight malfunctions. Background Technology

[0002] When an LED in an LED car headlight malfunctions, the following procedures should be followed:

[0003] (1) When there is 1 faulty LED, 70% of the headlights continue to work normally and report faults without performing illumination area and brightness compensation, while 30% of the headlights turn off and report faults.

[0004] (2) When there are two or more faulty LEDs, the headlights will turn off and a fault will be reported.

[0005] If your car's headlights malfunction due to LED issues, you should promptly take them to the nearest 4S dealership for repairs.

[0006] The above processing method has the following disadvantages:

[0007] (1) When driving at night, if the LED headlights malfunction, the headlights may be turned off or some key areas may be lacking light, affecting driving safety.

[0008] (2) The design index of headlight optical brightness is generally 120% to 140% of the national standard. A small number of LED failures can meet the national automotive lighting optical standards. The maintenance method of replacing the entire lamp assembly when a single LED is damaged results in a lot of waste and environmental pollution. Summary of the Invention

[0009] This invention addresses the problem that when existing vehicle lights malfunction at night, LED headlight failures may cause the headlights to shut off or result in insufficient illumination in critical areas, affecting driving safety. The invention provides a vehicle light malfunction compensation method.

[0010] The technical solution adopted in this invention is as follows:

[0011] A method for compensating for vehicle headlight malfunctions includes:

[0012] S1: Obtain the current value and headlight status of each LED;

[0013] S2: Based on the obtained LED current value and headlight status, determine whether the headlight is currently malfunctioning;

[0014] S3: If the current headlights malfunction, send the fault information to the server;

[0015] S4: Determine if a connection to the server is possible;

[0016] S5: If a connection to the server is available, obtain the LED fault light compensation parameter factor for the vehicle headlights;

[0017] S6: Generate a fault light compensation scheme for vehicle headlights based on compensation parameter factors;

[0018] S7: Drives the headlights according to the LED fault light compensation scheme;

[0019] S8: Evaluate the effect of supplemental lighting;

[0020] S9: If the supplementary lighting effect is qualified, store the evaluation score and parameter factors, and compare the generated light compensation scheme with the light compensation scheme stored on the server. If it is better than the light compensation scheme stored on the server, store the current light compensation scheme; if the supplementary lighting effect is not qualified, execute steps S7 to S8.

[0021] Furthermore, the fault information includes the vehicle's BeiDou positioning data.

[0022] Furthermore, step S5 also includes storing the acquired LED fault light compensation parameter factor in the server.

[0023] Furthermore, step S5 also includes obtaining the current ambient light data if a connection to the server cannot be established, calculating the light data distribution map of the key area based on the current ambient light data, and then executing steps S8 to S9.

[0024] Furthermore, the method of driving the headlights according to the light compensation scheme includes adjusting the illumination area and / or adjusting the illumination intensity.

[0025] Furthermore, the lighting area can be adjusted by adjusting the height of the headlights, and the lighting intensity can be adjusted by adjusting the brightness of the headlights.

[0026] This invention addresses the problem that when existing vehicle lights malfunction at night, LED headlight failures can lead to the headlights turning off or causing a lack of illumination in critical areas, thus affecting driving safety. The invention provides a vehicle light malfunction compensation device.

[0027] A vehicle headlight malfunction compensation device, comprising:

[0028] The vehicle lighting unit includes a vehicle lighting controller, a fault information output module, a vehicle lighting brightness adjustment module, and a vehicle lighting height adjustment module. The fault information output module, the vehicle lighting brightness adjustment module, and the vehicle lighting height adjustment module are all connected to the vehicle lighting controller.

[0029] A communication unit is connected to the vehicle light controller. The communication unit includes a Beidou positioning module, a vision acquisition module, an ambient light acquisition module, and a communication module. The Beidou positioning module, the vision acquisition module, the ambient light acquisition module, and the communication module are all connected to the vehicle light controller.

[0030] A light compensation unit, connected to the vehicle headlight controller, is used to analyze LED faults and generate a light compensation scheme.

[0031] A backend server, which connects the vehicle headlight controller and the light compensation unit, is used to store light compensation schemes.

[0032] This invention addresses the problem that when existing vehicle lights malfunction at night, LED headlight failures may cause the headlights to shut off or result in insufficient illumination in critical areas, affecting driving safety. The invention provides a vehicle light malfunction compensation system.

[0033] A vehicle headlight fault compensation system, comprising:

[0034] The headlight current and status acquisition module is used to acquire the current value and headlight status of each LED.

[0035] The fault analysis module is used to determine whether the current headlights are faulty;

[0036] The light compensation module is used to generate light compensation schemes and evaluate the effectiveness of the light compensation schemes.

[0037] The headlight drive module is used to adjust the brightness and height of the headlights according to the light compensation scheme.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0039] The vehicle headlight compensation method provided by this invention obtains the current value of each LED in the headlight and the headlight status to determine whether the headlight is currently faulty, and then generates a fault compensation scheme. This solves the problem that existing headlight damage affects the overall brightness of the headlight and impacts driving safety. When the headlight malfunctions, this invention can perform light compensation, which helps improve vehicle driving safety. At the same time, when a small number of LEDs in the headlight are damaged, the headlight brightness can be improved through compensation without repairing or replacing the entire headlight, thus reducing user costs. Attached Figure Description

[0040] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A flowchart of a vehicle headlight fault compensation method provided in an embodiment of the present invention;

[0042] Figure 2 This is a flowchart of a vehicle headlight fault compensation system provided in an embodiment of the present invention. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example:

[0045] Figure 1 The flowchart of a vehicle headlight fault compensation method provided in this embodiment is shown. This fault compensation method is used to compensate for the light of the vehicle headlight when a fault occurs, so that the overall brightness of the headlight is not affected and the vehicle can drive normally. Specifically, the vehicle headlight fault compensation method includes:

[0046] S1: Obtain the current value and headlight status of each LED;

[0047] S2: Based on the obtained LED current value and headlight status, determine whether the headlight is currently malfunctioning;

[0048] S3: If the current headlights malfunction, send the fault information to the server;

[0049] S4: Determine if a connection to the server is possible;

[0050] S5: If a connection to the server is available, obtain the LED fault light compensation parameter factor for the vehicle headlights;

[0051] It should be noted that in this embodiment, the server will specify various light compensation schemes based on the LED fault conditions of the lamps, and can determine the light compensation scheme based on the collected data. The collected data are parameter factors, such as: which LED groups are open or short-circuited, current vehicle speed, vehicle GPS data, current current and input voltage of the lamp driver board, etc.

[0052] S6: Generate a fault light compensation scheme for vehicle headlights based on compensation parameter factors;

[0053] S7: Drives the headlights according to the LED fault light compensation scheme;

[0054] S8: Evaluate the effect of supplemental lighting;

[0055] It should be noted that when a car turns on its low beam headlights, the vehicle's current light intensity is obtained through the onboard visual acquisition device. The current light intensity is then compared with the light intensity of the area required by national regulations to assess whether it meets national standards. If it meets national standards, the headlights can continue to operate and be used; otherwise, a fault is reported, and the owner is asked to repair the headlights.

[0056] S9: If the supplementary lighting effect is qualified, store the evaluation score and parameter factors, and compare the generated light compensation scheme with the light compensation scheme stored on the server. If it is better than the light compensation scheme stored on the server, store the current light compensation scheme; if the supplementary lighting effect is not qualified, execute steps S7 to S8.

[0057] Furthermore, the fault information includes the vehicle's BeiDou positioning data.

[0058] It should be noted that this embodiment can be configured with different light compensation schemes according to different geographical locations and the current environment. For example, if the current local average temperature is -10°C, a high-power light compensation scheme can be selected, and otherwise a low-power light compensation scheme or fault alarm can be selected.

[0059] Furthermore, step S5 also includes storing the acquired LED fault light compensation parameter factor in the server.

[0060] Furthermore, step S5 also includes obtaining the current ambient light data if a connection to the server cannot be established, calculating the light data distribution map of the key area based on the current ambient light data, and then executing steps S8 to S9.

[0061] It should be noted that after calculating the light data distribution map of the key area, it is compared with the light intensity of the illuminated area required by national regulations to determine whether the supplementary lighting effect generated by the calculated light data distribution map of the key area meets the requirements of national regulations.

[0062] Furthermore, in this embodiment, both the ambient light of the vehicle is collected by an environmental sensor and the brightness of the headlights are collected by a visual acquisition device. Since the visual acquisition device has requirements for light intensity, the accuracy of the visual acquisition device will decrease when the light is too strong, which is not conducive to the operation of the visual acquisition device. Therefore, it is necessary to detect the ambient light first.

[0063] Furthermore, the method of driving the headlights according to the light compensation scheme includes adjusting the illumination area and / or adjusting the illumination intensity.

[0064] Furthermore, the lighting area can be adjusted by adjusting the height of the headlights, and the lighting intensity can be adjusted by adjusting the brightness of the headlights.

[0065] This embodiment also provides a vehicle headlight fault compensation device, such as Figure 2 As shown, the headlight fault compensation device includes:

[0066] The vehicle lighting unit includes a vehicle lighting controller, a fault information output module, a vehicle lighting brightness adjustment module, and a vehicle lighting height adjustment module. The fault information output module, the vehicle lighting brightness adjustment module, and the vehicle lighting height adjustment module are all connected to the vehicle lighting controller.

[0067] A communication unit is connected to the vehicle light controller. The communication unit includes a Beidou positioning module, a vision acquisition module, an ambient light acquisition module, and a communication module. The Beidou positioning module, the vision acquisition module, the ambient light acquisition module, and the communication module are all connected to the vehicle light controller.

[0068] A light compensation unit, connected to the vehicle headlight controller, is used to analyze LED faults and generate a light compensation scheme.

[0069] A backend server, which connects the vehicle headlight controller and the light compensation unit, is used to store light compensation schemes.

[0070] Furthermore, in this embodiment, the optical compensation scheme can be obtained directly from the backend server, or the optimal optical compensation scheme can be generated according to the actual situation, without any restrictions.

[0071] This embodiment also provides a vehicle headlight fault compensation system, including:

[0072] The headlight current and status acquisition module is used to acquire the current value and headlight status of each LED.

[0073] The fault analysis module is used to determine whether the current headlights are faulty;

[0074] The light compensation module is used to generate light compensation schemes and evaluate the effectiveness of the light compensation schemes.

[0075] The headlight drive module is used to adjust the brightness and height of the headlights according to the light compensation scheme.

[0076] In summary, the vehicle headlight fault compensation method, device, and system provided in this embodiment obtain the current value of each LED in the headlight and the headlight status to determine whether the headlight is currently faulty, and then generate a fault compensation scheme. This solves the problem that existing headlight damage affects the overall brightness of the headlight and impacts driving safety. When a headlight malfunctions, this invention can perform light compensation, which is beneficial to improving vehicle driving safety. At the same time, when a small number of LEDs in the headlight are damaged, the headlight brightness can be improved through compensation without repairing or replacing the entire headlight, which can reduce user costs and extend the lifespan of the headlight.

[0077] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of the invention pertain.

[0078] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0079] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0080] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for compensating for vehicle headlight malfunctions, characterized in that, include: S1: Obtain the current value and headlight status of each LED; S2: Based on the obtained LED current value and headlight status, determine whether the headlight is currently malfunctioning; S3: If the current headlights malfunction, send the fault information to the server; S4: Determine if a connection to the server is possible; S5: If a connection to the server is available, obtain the LED fault light compensation parameter factor for the vehicle headlights; S6: Generate a fault light compensation scheme for vehicle headlights based on compensation parameter factors; S7: Drive the headlights according to the LED fault light compensation scheme, and the driving method includes adjusting the headlight brightness and / or adjusting the headlight height; S8: The vehicle's current headlight intensity is acquired through the onboard vision acquisition device, and the acquired headlight intensity is compared with the required illumination area to evaluate the supplementary lighting effect; S9: If the supplementary lighting effect is qualified, store the evaluation score and parameter factors, and compare the generated light compensation scheme with the light compensation scheme stored on the server. If it is better than the light compensation scheme stored on the server, store the current light compensation scheme; if the supplementary lighting effect is not qualified, execute steps S7~S8. Step S5 further includes storing the acquired LED fault light compensation parameter factor of the vehicle headlight into the server; Step S5 further includes, if the connection to the server cannot be made, acquiring the current ambient light data, calculating the light data distribution map of the key area based on the current ambient light data, and then executing steps S8 to S9.

2. The vehicle headlight fault compensation method according to claim 1, characterized in that, The fault information includes the vehicle's BeiDou positioning data.

3. The vehicle headlight fault compensation method according to claim 1, characterized in that, The methods for driving vehicle lights according to the light compensation scheme include adjusting the illumination area and / or adjusting the illumination intensity.

4. The vehicle headlight fault compensation method according to claim 3, characterized in that, Adjust the lighting area by adjusting the height of the headlights, and adjust the lighting intensity by adjusting the brightness of the headlights.

5. A vehicle headlight fault compensation device for implementing the method as described in any one of claims 1-4, characterized in that, include: The vehicle lighting unit includes a vehicle lighting controller, a fault information output module, a vehicle lighting brightness adjustment module, and a vehicle lighting height adjustment module. The fault information output module, the vehicle lighting brightness adjustment module, and the vehicle lighting height adjustment module are all connected to the vehicle lighting controller. A communication unit is connected to the vehicle light controller. The communication unit includes a Beidou positioning module, a vision acquisition module, an ambient light acquisition module, and a communication module. The Beidou positioning module, the vision acquisition module, the ambient light acquisition module, and the communication module are all connected to the vehicle light controller. A light compensation unit, which is connected to the vehicle headlight controller, is used to analyze LED faults and generate a light compensation scheme; A backend server, which connects the vehicle headlight controller and the light compensation unit, is used to store light compensation schemes.

6. A vehicle headlight fault compensation system for implementing the method as described in any one of claims 1-4, characterized in that, include: The headlight current and status acquisition module is used to acquire the current value and headlight status of each LED. The fault analysis module is used to determine whether the current headlights are faulty; Headlight brightness adjustment module and headlight height adjustment module; The visual acquisition module is used to obtain the current light intensity of the vehicle; The light compensation module is used to generate a light compensation scheme and evaluate the supplementary lighting effect by comparing the acquired light intensity with the light intensity of the required illuminated area. The headlight drive module is used to adjust the brightness and height of the headlights according to the light compensation scheme.

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