Blind spot warning lamp capable of realizing two brightness levels according to external illumination conditions and control method

Abstract

The invention relates to the technical field of vehicle warning lamps, in particular to a blind spot warning lamp capable of achieving two brightness levels according to external illumination conditions and a control method, the blind spot warning lamp comprises an upper lamp shell and a lower lamp shell, and the upper lamp shell and the lower lamp shell are connected through ultrasonic welding; the upper lamp shell is provided with a plurality of sets of indicator lamps and further provided with a transparent mask used for protecting the indicator lamps. According to the blind spot warning lamp, IP65-level waterproofness can be achieved without coating a pouring sealant, and the waterproof performance is more stable; the blind spot warning lamp connector is directly integrated on the lamp shell, the problem that a wire-to-wire connector needs to be fixed is solved, plugging is stable, and shock resistance is good; and meanwhile, the blind spot warning lamp provides two brightness levels, so that the indicating lamp is still clear and visible under the condition of strong illumination, excessive stimulation to human eyes under the condition of low illumination is avoided, and discomfort is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle warning lights, and in particular to a blind spot warning light that realizes two brightness levels according to external lighting conditions and a control method thereof. Background Art

[0002] Through analysis of the increasingly frequent and serious traffic accidents, it is found that the driver's blind spot is an important cause of traffic accidents. Therefore, as a part of active safety technology, the blind spot monitoring and warning system is increasingly becoming a "standard feature" of many models, and some analysts believe that it will soon become a mandatory requirement.

[0003] GB / T 39265-2020 "Performance Requirements and Test Methods for Blind Spot Monitoring (BSD) Systems for Road Vehicles" specifies in detail the various activation conditions for blind spot monitoring and warning, but does not have clear requirements for the brightness of the warning lights. Regulations ECER151 and R159 also make clear requirements and test methods for blind spot monitoring systems (BSIS) and mobile monitoring systems for pedestrians and cyclists (MOIS), respectively, but the brightness of the warning lights is only "clearly visible during the day / night".

[0004] According to the technical requirements of major domestic car manufacturers, the brightness requirements for warning lights are also a wide range; the requirement for "visible" is expressed as a brightness of not less than 5000nit (cd / m2), and the requirement for preventing glare is expressed as a brightness of less than 20000nit (cd / m2). However, the human eye perceives brightness differently in different lighting environments. When the external ambient light is brighter and the brightness of the warning light is too weak, the excitability of retinal cells is insufficient, and the visual response process is slow, which can easily lead to decreased vision and visual fatigue; when the external ambient light is darker and the brightness of the warning light is too strong, the excessive light will produce a sense of dazzle, irritate the retina, and lead to reduced visual function, eye fatigue, and even eye pain. In summary, a single wide brightness range is not conducive to activating the driver's participation in various environments and achieving the expected warning effect. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a blind spot warning light and a control method that can achieve two brightness levels according to external lighting conditions, thereby solving the technical problem that a single warning light brightness range is not conducive to activating driver participation in various environments.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a blind spot warning light that realizes two brightness levels according to external lighting conditions, the blind spot warning light comprising an upper lamp housing and a lower lamp housing, the upper lamp housing and the lower lamp housing being connected by ultrasonic welding;

[0007] The upper lamp housing is provided with a plurality of groups of indicator lights, and the upper lamp housing is also provided with a transparent mask for protecting the indicator lights;

[0008] The transparent mask of the blind spot warning light can be fitted with the rearview mirror of the vehicle, thereby achieving installation and fixation of the blind spot warning light.

[0009] Preferably, a driving circuit board is encapsulated in the lower lamp housing, and a driving circuit for lighting the indicator light is burned on the driving circuit board.

[0010] Preferably, the lower lamp housing is provided with a plug-in interface, and the plug-in interface can be arranged vertically or horizontally.

[0011] A control method for achieving two brightness levels according to external lighting conditions, the control method is:

[0012] The control of the two brightness levels of the blind spot warning light is jointly determined by the vehicle blind spot monitoring system and the adjustment module;

[0013] The vehicle blind spot monitoring system is composed of a sensing detection module, a data processing module and an execution module; the data processing module includes a processor for executing various algorithms and logical judgments, a storage for storing various parameters, algorithms and programs, and a communication interface for electrical connection between other vehicle systems; the execution module is composed of an audible and visual alarm and a blind spot warning light;

[0014] The adjustment module includes a light sensor arranged on the vehicle and a drive circuit for lighting the blind spot warning light. The signal output end of the light sensor is electrically connected to the communication interface of the data processing module, and the signal input end of the drive circuit is electrically connected to the signal output end of the data processing module.

[0015] Preferably, the perception detection module includes a millimeter-wave radar sensor, a detection camera and an ultrasonic sensor installed on the vehicle, and the data output ends of the millimeter-wave radar sensor, the detection camera and the ultrasonic sensor are electrically connected to the communication interface of the data processing module.

[0016] Preferably, the working process of the vehicle blind spot monitoring system is:

[0017] S1. Real-time monitoring of the vehicle's surroundings is performed through the millimeter-wave radar sensor, detection camera, and ultrasonic sensor in the perception detection module to promptly detect vehicles or obstacles in the driver's blind spot;

[0018] S2. The data processing module calculates and analyzes the data information transmitted from the perception detection module to determine whether the surrounding vehicles or obstacles have an impact on driving safety, and then transmits the instructions to be executed to the execution module;

[0019] S3, the execution module receives the control information sent by the data processing module to control whether the sound and light alarm and the blind spot warning light are working.

[0020] Preferably, the working modes of the blind spot warning light include a high brightness mode and a low brightness mode;

[0021] High brightness mode: when the ambient light is sufficient and greater than the light intensity threshold set inside the light sensor, the blind spot warning light will activate the high brightness mode to enhance stimulation and ensure timely visibility;

[0022] Low-brightness mode: when the ambient light is low and lower than the light intensity threshold set inside the light sensor, the blind spot warning light will activate low-brightness mode to avoid causing discomfort to the driver.

[0023] By means of the above technical solution, the present invention provides a blind spot warning light that realizes two brightness levels according to external lighting conditions, which has at least the following beneficial effects:

[0024] 1. The blind spot warning light of the present invention can achieve IP65 waterproof level without applying potting glue, and the waterproof performance is more stable; and the blind spot warning light connector is directly integrated on the lamp housing, and there is no problem of fixing the connector for wire-to-wire connectors, and the plug-in is stable and has good shock resistance; at the same time, the blind spot warning light provides two brightness levels, which not only ensures that the indicator light is still clearly visible under strong light conditions, but also avoids excessive stimulation to the human eye under low light conditions, reducing discomfort.

[0025] 2. The present invention jointly determines the two brightness level controls of the blind spot warning light when in use through the vehicle blind spot monitoring system and the adjustment module. The high brightness mode can be enabled when the external light intensity is high to enhance stimulation and ensure timely visibility; the low brightness mode can be enabled when the external light intensity is low or in areas such as tunnels to avoid causing discomfort to the driver. The switching between the two modes is conducive to activating the driver's participation in various environments and achieving the expected warning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of the horizontal plug-in board of the blind spot warning light of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the vertical plug-in board of the blind spot warning light of the present invention;

[0029] Figure 3 This is a schematic diagram of the internal structure of the blind spot warning light of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the vehicle blind spot monitoring system of the present invention;

[0031] Figure 5 This is a logic judgment flow chart of the blind spot warning light operation of the present invention;

[0032] Figure 6 The wiring logic circuit diagram of the blind spot warning light socket of the present invention;

[0033] Figure 7 The figure is a schematic diagram of the blind spot warning light driving circuit of the present invention.

[0034] In the figure: 1. Perception detection module; 2. Data processing module; 3. Execution module; 4. Light sensor; 5. Blind spot warning light; 501. Upper lamp housing; 502. Lower lamp housing; 503. Indicator light; 504. Transparent mask. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1

[0037] Please refer to Figure 1-Figure 3 , a blind spot warning light that realizes two brightness levels according to external lighting conditions, the blind spot warning light 5 comprises an upper lamp housing 501 and a lower lamp housing 502, and the upper lamp housing 501 and the lower lamp housing 502 are connected by ultrasonic welding;

[0038] The upper lamp housing 501 is provided with a plurality of indicator lights 503 , and the upper lamp housing 501 is also provided with a transparent mask 504 for protecting the indicator lights 503 ;

[0039] The transparent mask 504 of the blind spot warning light 5 can be fitted with the rearview mirror of the vehicle, thereby realizing the installation and fixation of the blind spot warning light 5; a plug interface is provided on the lower lamp housing 502, and the plug interface can be arranged vertically or horizontally; by selecting the plug interface arranged in different directions, the entire blind spot warning light 5 can be placed on the rearview mirror of the vehicle in a suitable position, so as to facilitate the selection of most car manufacturers;

[0040] As can be seen from the above, the entire blind spot warning light 5 adopts a compact integrated structure, so that the warning light occupies a small installation space and is easy to promote and apply. At the same time, the interface pin adopts an insert injection molding process, and the upper lamp housing 501 and the lower lamp housing 502 are connected by ultrasonic welding, so that the blind spot warning light 5 does not need to be additionally coated with potting glue, and has good waterproof performance;

[0041] The transparent mask 504 is made of translucent diffuser material, does not require additional light distribution mirrors or inner lenses, and can provide a 16mm*23mm uniform light output surface, which can meet the light source requirements of most car manufacturers' customized patterns;

[0042] Furthermore, a driving circuit board is encapsulated in the lower lamp housing 502, and a driving circuit for lighting the indicator light 503 is burned on the driving circuit board. The driving circuit adopts a two-stage driving current. In the "daytime", the indicator light 503 can provide a brightness of 9000 to 16000 nit (cd / m2); in the "nighttime" or when the light is low, the indicator light 503 can reduce the brightness to 5000 to 7500 nit (cd / m2);

[0043] In summary, the blind spot warning light 5 has the following advantages:

[0044] 1. This blind spot warning light 5 can achieve IP65 waterproof without applying potting glue, and the waterproof performance is more stable;

[0045] 2. The connector of this blind spot warning light 5 is directly integrated on the lamp housing. There is no need to fix the connector for line-to-line connectors. The plug-in is stable and has good shock resistance.

[0046] 2. The blind spot warning light 5 provides two brightness levels, which not only ensures that the indicator light is still clearly visible under strong light conditions, but also avoids excessive stimulation to the human eye under low light conditions, reducing discomfort.

[0047] Embodiment 2

[0048] Please refer to Figure 3-Figure 7 This embodiment is basically the same as the first embodiment. This embodiment is made on the basis of the first embodiment and has the same beneficial effects as the first embodiment. The same parts can be referred to each other and will not be described in detail here.

[0049] As a further technical solution of this embodiment, a control method for achieving two brightness levels according to external lighting conditions is as follows:

[0050] The control of the two brightness levels of the blind spot warning light 5 is determined by the vehicle blind spot monitoring system and the adjustment module;

[0051] The vehicle blind spot monitoring system is composed of a sensing detection module 1, a data processing module 2 and an execution module 3; the data processing module 2 includes a processor for executing various algorithms and logical judgments, a storage for storing various parameters, algorithms and programs, and a communication interface for electrical connection between other vehicle systems; the execution module 3 is composed of an audible and visual alarm and a blind spot warning light 5;

[0052] The adjustment module includes a light sensor 4 arranged on the vehicle and a drive circuit for lighting the blind spot warning light 5. The signal output end of the light sensor 4 is electrically connected to the communication interface of the data processing module 2, and the signal input end of the drive circuit is electrically connected to the signal output end of the data processing module 2.

[0053] The definitions of "day" and "night" in the present invention specifically refer to: since the light sensor 4 is provided in the adjustment module, the principle of the light sensor 4 judging day and night is mainly based on the change of light intensity;

[0054] A threshold of light intensity is set inside or outside the light sensor 4, and this threshold is determined according to actual application requirements and environmental conditions;

[0055] When the light intensity is higher than the threshold, the light sensor 4 determines that it is daytime; when the light intensity is lower than the threshold, the light sensor 4 determines that it is nighttime.

[0056] Furthermore, the perception detection module 1 includes a millimeter-wave radar sensor, a detection camera and an ultrasonic sensor installed on the vehicle, and the data output ends of the millimeter-wave radar sensor, the detection camera and the ultrasonic sensor are electrically connected to the communication interface of the data processing module 2.

[0057] Further, the working process of the vehicle blind spot monitoring system is:

[0058] S1, through the millimeter wave radar sensor, detection camera and ultrasonic sensor in the perception detection module 1, the surrounding area of ​​the vehicle is monitored in real time to promptly detect vehicles or obstacles within the driver's blind spot;

[0059] S2, the data processing module 2 calculates and analyzes the data information transmitted from the perception detection module 1 to determine whether the surrounding vehicles or obstacles have an impact on driving safety, and then transmits the instructions to be executed to the execution module 3;

[0060] S3, the execution module 3 receives the control information sent by the data processing module 2 to control whether the sound and light alarm and the blind spot warning light 5 are working.

[0061] From the above, it can be seen that whether the blind spot warning light 5 is working, that is, whether the driving circuit of the blind spot warning light 5 has a signal input is determined by the vehicle blind spot monitoring system; when the data processing module 2 in the vehicle blind spot monitoring system analyzes the real-time data from the perception detection module 1 and determines whether the surrounding vehicles or obstacles have an impact on driving safety, the data processing module 2 will send a control signal to control whether the blind spot warning light 5 in the execution module 3 is working, and the working mode of the blind spot warning light 5 is determined by the adjustment module, so the working mode of the blind spot warning light 5 to achieve two brightness levels according to the external lighting conditions is jointly determined by the vehicle blind spot monitoring system and the adjustment module.

[0062] Furthermore, the working modes of the blind spot warning light 5 include a high brightness mode and a low brightness mode;

[0063] High brightness mode: when the external environment is bright enough and the light intensity is greater than the light intensity threshold set inside the light sensor 4, the blind spot warning light 5 activates the high brightness mode to enhance stimulation and ensure timely visibility;

[0064] In low-brightness mode, when the ambient light is low and is less than the light intensity threshold set inside the light sensor 4, the blind spot warning light 5 activates the high-brightness mode and the low-brightness mode to avoid causing discomfort to the driver.

[0065] The blind spot warning light 5 switches between two brightness levels according to the external lighting conditions. Specifically, after the vehicle blind spot monitoring system finds that there is a vehicle or obstacle in the vehicle blind spot that affects driving safety, the data processing module 2 needs to process and judge the real-time data transmitted by the light sensor 4 again, thereby sending a control signal.

[0066] When the external environment is "daytime", VCC2 has a signal input, and the current in the circuit loop with VCC2 as the input end is relatively large, and the brightness of the blind spot warning light 5 is relatively high;

[0067] When the external environment is "night" or the light is low, VCC1 has a signal input. At this time, the current in the circuit loop with VCC1 as the input end is relatively large, and the brightness of the blind spot warning light 5 is relatively low.

[0068] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0069] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the above embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blind spot warning light that realizes two brightness levels according to external lighting conditions, characterized in that: The blind spot warning light (5) comprises an upper light housing (501) and a lower light housing (502), and the upper light housing (501) and the lower light housing (502) are connected by ultrasonic welding; The upper lamp housing (501) is provided with a plurality of groups of indicator lights (503), and the upper lamp housing (501) is also provided with a transparent mask (504) for protecting the indicator lights (503); The transparent mask (504) of the blind spot warning light (5) can be fitted with a rearview mirror of a vehicle, thereby achieving installation and fixation of the blind spot warning light (5).

2. A blind spot warning light that realizes two brightness levels according to external lighting conditions according to claim 1, characterized in that: A driving circuit board is encapsulated in the lower lamp housing (502), and a driving circuit for lighting the indicator light (503) is burned onto the driving circuit board.

3. The blind spot warning light that realizes two brightness levels according to external lighting conditions according to claim 2, characterized in that: The lower lamp housing (502) is provided with an insertion port, and the insertion port can be arranged vertically or horizontally.

4. A control method for achieving two brightness levels according to external lighting conditions, characterized in that: Using a blind spot warning light that realizes two brightness levels according to external lighting conditions as described in any one of claims 1 to 3, the control method is: The control of the two brightness levels of the blind spot warning light (5) is jointly determined by the vehicle blind spot monitoring system and the adjustment module; The vehicle blind spot monitoring system is composed of a sensing detection module (1), a data processing module (2) and an execution module (3); the data processing module (2) includes a processor for executing various algorithms and logical judgments, a storage for storing various parameters, algorithms and programs, and a communication interface for electrical connection between other vehicle-mounted systems; the execution module (3) is composed of an audible and visual alarm and a blind spot warning light (5); The adjustment module comprises a light sensor (4) arranged on the vehicle and a drive circuit for lighting a blind spot warning light (5), wherein a signal output end of the light sensor (4) is electrically connected to a communication interface of a data processing module (2), and a signal input end of the drive circuit is electrically connected to a signal output end of the data processing module (2).

5. A control method for realizing two brightness levels according to external lighting conditions according to claim 4, characterized in that: The perception detection module (1) comprises a millimeter wave radar sensor, a detection camera and an ultrasonic sensor installed on the vehicle, and the data output ends of the millimeter wave radar sensor, the detection camera and the ultrasonic sensor are all electrically connected to the communication interface of the data processing module (2).

6. A control method for achieving two brightness levels according to external lighting conditions according to claim 5, characterized in that: The working process of the vehicle blind spot monitoring system is as follows: S1. Real-time monitoring of the surroundings of the vehicle is performed through the millimeter wave radar sensor, detection camera and ultrasonic sensor in the perception detection module (1), so as to promptly detect vehicles or obstacles within the driver's blind spot; S2, the data processing module (2) performs calculation and analysis on the data information transmitted from the sensing and detecting module (1), determines whether the surrounding vehicles or obstacles have an impact on driving safety, and then transmits the instructions to be executed to the execution module (3); S3, the execution module (3) receives the control information sent by the data processing module (2) to control whether the sound and light alarm and the blind spot warning light (5) are working.

7. A control method for achieving two brightness levels according to external lighting conditions according to claim 6, characterized in that: The working modes of the blind spot warning light (5) include a high brightness mode and a low brightness mode; High brightness mode: when the ambient light is sufficient and greater than the light intensity threshold set inside the light sensor (4), the blind spot warning light (5) activates the high brightness mode to enhance stimulation and ensure timely visibility; In the low-brightness mode, when the ambient light is low and is less than the light intensity threshold value set inside the light sensor (4), the blind spot warning light (5) activates the low-brightness mode to avoid causing discomfort to the driver.

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