Red, green and blue (RGB) light source-based lane merging auxiliary lighting system

Abstract

The utility model discloses an RGB light source-based lane merging auxiliary lighting system, which comprises a control unit and an RGB light source, and is characterized in that the control unit is connected with a vehicle body BCM (Body Control Module) system; the control unit is used for receiving an LIN signal from a vehicle body and changing a signal of the output pin according to the signal to form an output signal; and the RGB light source is used for receiving the signal output by the control unit so as to adjust the light intensity ratio. By implementing the circuit provided by the utility model, the signal indication function of the overtaking auxiliary lamp can be added, so that the lane merging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting circuits, in particular to a lane-merging auxiliary lighting system based on RGB light sources. Background Art

[0002] In current technology, the vehicle's lane-changing auxiliary lights mainly rely on the yellow light of the turn signal, while RGB technology is mainly used for decorative lights inside the car. However, when two vehicles are parallel and need to change lanes, the monochrome turn signal cannot accurately convey the information of slowing down or accelerating to change lanes. The change in vehicle speed depends on stepping on the accelerator or brake, and there is a certain lag. During this period, accidents are prone to occur or intersections are missed. When the vehicle is driving and there is a need to merge or want to exchange lanes with the parallel vehicle at the same time, the driver turns on the turn signal, but at this time the driver only knows that the other party has a need to merge, and needs to observe the status of the other vehicle several times and confirm safety before changing lanes, which increases traffic congestion and the risk of accidents.

[0003] Therefore, it is necessary to design a new circuit to increase the overtaking auxiliary light signal indication function to improve the lane merging efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a lane-merging auxiliary lighting system based on RGB light sources.

[0005] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions: to provide a lane-merging auxiliary lighting system based on RGB light source, including: a control unit and an RGB light source, the control unit is connected to the vehicle body BCM system; the control unit is used to receive a LIN signal from the vehicle body, and change the signal of the output pin according to the signal to form an output signal; the RGB light source is used to receive the signal output by the control unit to adjust the light intensity ratio.

[0006] A further technical solution is as follows: the control unit includes a main control chip U1, and the model of the main control chip U1 is IND83205.

[0007] A further technical solution thereof is: it also includes a power input unit, and the power input unit is connected to the control unit and the RGB light source respectively.

[0008] A further technical solution is: the power input unit includes an input circuit and a filter circuit, the input circuit is respectively connected to the power supply, the RGB light source and the filter circuit; the filter circuit is connected to the control unit.

[0009] Its further technical solution is: the input end circuit includes a capacitor C1, an anti-reverse diode D2, a resistor R2, and a capacitor C2; one end of the capacitor C1 is connected to an interface H1 connected to the power supply; the other end of the capacitor C1 is grounded; one end of the interface H1 is connected to an anti-reverse diode D2 and a resistor R2 in sequence, and one end of the capacitor C2 is connected to the resistor R2; the other end of the capacitor C2 is grounded; the other end of the resistor R2 is respectively connected to the RGB light source and the filter circuit.

[0010] Its further technical solution is: the filtering circuit includes capacitor C14, magnetic bead B1, and capacitor C8; the magnetic bead B1 is connected to the resistor R2; one end of the capacitor C14 is grounded, and the other end is connected between the magnetic bead B1 and the resistor R2; one end of the capacitor C8 is connected, and the other end is connected to the magnetic bead B1; the end of the magnetic bead B1 connected to the capacitor C8 is connected to the control unit.

[0011] Its further technical solution is: the interface H1 is connected to a TVS tube T1 with one end grounded; the interface H1 is connected to a magnetic bead B2, the other end of the magnetic bead B2 is also connected to a capacitor C7 with one end grounded, and the magnetic bead B2 is connected to the control unit.

[0012] A further technical solution is: the RGB light source includes an RGB lamp.

[0013] Its further technical solution is: the model of the RGB light source is NSSM313AT

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model applies the RGB light source to the lane-changing auxiliary light scene by setting a control unit and an RGB light source. The control unit collects brake and accelerator signals, realizes that lightly pressing the brake turns green, notifying the adjacent vehicle to speed up and pass; lightly pressing the accelerator turns red, notifying the adjacent vehicle to slow down and give way. The brightness change of the light source reflects the depth of pedal depression, thereby increasing the overtaking auxiliary light signal indication function to improve the efficiency of merging.

[0015] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1A schematic block diagram of a lane-merging auxiliary lighting system based on RGB light sources provided by an embodiment of the utility model;

[0018] Figure 2 A specific circuit diagram of a power input unit provided by an embodiment of the utility model;

[0019] Figure 3 A specific circuit diagram of a control unit and a drive unit provided in an embodiment of the utility model;

[0020] Description of the symbols in the figure:

[0021] 10. Control unit; 20. RGB light source; 30. Power input unit; 40. Vehicle body BCM system. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0024] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0025] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0026] See also Figure 1 , Figure 1A schematic block diagram of a lane-merging auxiliary lighting system based on an RGB light source provided in an embodiment of the utility model can be used in scenes where lane-merging auxiliary lighting is required, such as in automobiles. The throttle and brake signals are transmitted through the Lin signal, and the different light colors and different light intensities of the RGB light source 20 are used to accurately convey the vehicle's upcoming lane-merging strategy, reduce the time for confirming safety hesitation, and use Lin communication to ensure the timeliness of the signal.

[0027] See also Figure 1 The above-mentioned lane-merging auxiliary lighting system based on RGB light source includes: a control unit 10 and an RGB light source 20, the control unit 10 is connected to the vehicle body BCM system 40; the control unit 10 is used to receive a LIN signal from the vehicle body, and change the signal of the output pin according to the signal to form an output signal; the RGB light source 20 is used to receive the signal output by the control unit 10 to adjust the light intensity ratio.

[0028] Specifically, the control unit 10 receives the vehicle body LIN signal and adjusts the proportion of red (RED), green (GREEN), and blue (BIUE) light intensities by changing the PWM outputs of the LED0, LED1, and LED2 pins, thereby achieving a fast response of multiple color gamuts and different light intensities of a single RGB light source 20 to achieve timely response to the vehicle's lane merging strategy.

[0029] Through the RGB light source 20, multiple colors can be generated, not just the traditional yellow turn signal. Such a multi-color domain can more accurately convey the vehicle's driving intention and improve traffic safety; the control unit 10 can quickly change the PWM output of the LED pin according to the vehicle body LIN signal, so that the RGB light source 20 can respond quickly and reflect the vehicle's lane-merging strategy in a timely manner, reducing the possibility of traffic accidents; through PWM output, the light intensity of each color can be adjusted to achieve adaptability in different scenarios, improving the flexibility and practicality of the lane-merging auxiliary light.

[0030] In one embodiment, the control unit 10 includes a main control chip U1 , and the model of the main control chip U1 is but not limited to IND83205.

[0031] As the main control chip, IND83205 has stable and reliable performance, which can ensure the normal operation of the auxiliary lights and the long-term stability of the system. The main control chip U1 integrates a variety of functions, such as PWM output, LIN communication interface, etc. These functions can meet the various control and communication requirements of the lane-merging auxiliary light system, making the system design more concise and flexible. IND83205 has good adaptability and is compatible with the BCM systems of various vehicles, so it can be widely used in different models of cars. As the main control chip, IND83205 has a low-power design, which can effectively reduce the energy consumption of the system, extend the service life of the auxiliary lights, and is beneficial to the overall energy management of the vehicle.

[0032] In one embodiment, see Figure 2 The above-mentioned lane-merging auxiliary lighting system based on RGB light source also includes a power input unit 30, and the power input unit 30 is connected to the control unit 10 and the RGB light source 20 respectively.

[0033] In one embodiment, see Figure 2 The power input unit 30 includes an input circuit and a filter circuit. The input circuit is connected to the power supply, the RGB light source 20 and the filter circuit respectively; the filter circuit is connected to the control unit 10.

[0034] In one embodiment, see Figure 2 The above-mentioned input end circuit includes a capacitor C1, an anti-reverse diode D2, a resistor R2, and a capacitor C2; one end of the capacitor C1 is connected to an interface H1 connected to a power supply; the other end of the capacitor C1 is grounded; one end of the interface H1 is sequentially connected to an anti-reverse diode D2 and a resistor R2, and one end of the capacitor C2 is connected to the resistor R2; the other end of the capacitor C2 is grounded; the other end of the resistor R2 is respectively connected to the RGB light source 20 and the filter circuit.

[0035] In one embodiment, see Figure 2 The above-mentioned filtering circuit includes capacitor C14, magnetic bead B1, and capacitor C8; magnetic bead B1 is connected to resistor R2; one end of capacitor C14 is grounded, and the other end is connected between magnetic bead B1 and resistor R2; one end of capacitor C8 is connected, and the other end is connected to magnetic bead B1; the end of magnetic bead B1 connected to capacitor C8 is connected to control unit 10.

[0036] Specifically, the power input end is powered on, and the LED is powered through the capacitor C1, anti-reverse diode D2, resistor R2, and capacitor C2 of the input circuit, and then powered through capacitor C14, magnetic bead B1, and capacitor C8 filtering to the VBAT pin of the main control chip U1.

[0037] The power input unit 30 plays a key role in providing a stable power supply to the control unit 10 and the RGB light source 20, and eliminating noise and interference in the power supply through a filtering circuit, thereby ensuring the normal operation of the system.

[0038] The input circuit includes capacitor C1, anti-reverse diode D2, resistor R2, and capacitor C2. When the power input is powered on, capacitor C1 is charged first, and anti-reverse diode D2 plays a protective role to prevent reverse current from damaging the circuit. Resistor R2 limits the current, and capacitor C2 further stabilizes the current.

[0039] The filter circuit includes capacitor C14, magnetic bead B1, and capacitor C8. It further filters on the basis of the input circuit to eliminate high-frequency noise and interference in the power supply and ensure the stability of the output power supply signal.

[0040] Through the design of the input circuit and the filter circuit, a stable power supply can be provided to the LED and the main control chip U1 to ensure their normal operation and avoid system failure or unstable LED brightness caused by power fluctuations. The anti-reverse diode D2 can effectively protect the circuit, prevent reverse current from damaging circuit components, and extend the service life of the system. The filter circuit can effectively filter out noise and interference in the power supply, improve the system's anti-interference ability, ensure the stability of signal transmission, and reduce the impact of external interference on system performance.

[0041] In summary, the power input unit 30 plays a vital role in the parallel channel auxiliary lighting circuit based on RGB light source. By providing stable power supply and filtering out noise interference, it ensures the normal operation and high efficiency performance of the system, and also improves the reliability and stability of the system.

[0042] In one embodiment, see Figure 2 The interface H1 is connected to a TVS tube T1 with one end grounded; the interface H1 is connected to a magnetic bead B2, and the other end of the magnetic bead B2 is also connected to a capacitor C7 with one end grounded; the magnetic bead B2 is connected to the control unit 10.

[0043] Specifically, the LIN signal (on / off light signal and brake throttle signal) communicates with the LIN_in pin of the main control chip U1 through the TVS tube T1, the magnetic bead B2, and the capacitor C7. The 3, 4, 5, 6, 7, 11, 15, 16, 17, and 20 pins of the main control chip U1 are grounded.

[0044] In one embodiment, see Figure 3 The above-mentioned RGB light source 20 includes an RGB lamp.

[0045] Specifically, the model of the RGB light source 20 is but not limited to NSSM313AT.

[0046] RGB lights LED0, LED1, and LED2 correspond to the red, green, and blue low-side switch channels respectively. When the turn signal is on and the LIN signal receives the brake signal, the LED1 channel outputs a certain duty cycle, and the lane-changing auxiliary light is reflected as a green light source (indicating that the adjacent car is passing quickly). When the brake is pressed more deeply, the duty cycle output of the LED1 channel increases, and the lane-changing auxiliary light is reflected as a brighter green light source. When the turn signal is on and the LIN signal receives the throttle signal, the LED0 channel outputs a certain duty cycle, and the lane-changing auxiliary light is reflected as a red light source (indicating that the adjacent car is slowing down to make room). When the throttle is pressed more deeply, the duty cycle output of the LED0 channel increases, and the lane-changing auxiliary light is reflected as a brighter red light source. The circuit of this embodiment can promptly inform the adjacent car of the lane-changing strategy that it is about to adopt, so that the adjacent car can slow down in advance to make room or speed up to make room behind.

[0047] Specifically, when the turn signal is turned on and a brake signal is received, the LED1 channel outputs a certain duty cycle and displays a green light source, indicating that the vehicle next to you is passing quickly.

[0048] When the brake signal deepens, the duty cycle of LED1 channel increases and the green light source becomes brighter, indicating that the vehicle next to you should slow down and make room.

[0049] When the turn signal is turned on and the throttle signal is received, the LED0 channel outputs a certain duty cycle and displays a red light source, indicating that the vehicle next to you should slow down and make room.

[0050] When the throttle signal deepens, the duty cycle of the LED0 channel increases, and the red light source becomes brighter, indicating that the vehicle next to you should slow down and make room.

[0051] The circuit of this embodiment can promptly inform the adjacent vehicles of the lane-merging strategy that it is about to adopt, and by changing the brightness and color of the LED, convey the vehicle's action intention to other vehicles, such as passing quickly or slowing down to make room. This can improve traffic safety, reduce the occurrence of traffic accidents, and improve driving experience and road traffic efficiency.

[0052] In one embodiment, the RGB light source 20 may be replaced with an ISD projection lamp.

[0053] The working principle of replacing the RGB light source 20 with an ISD (Intelligent Scene Display) projection lamp is to use projection technology to project the vehicle's action intention in the form of images or text onto the road or surrounding environment to convey information to other vehicles or pedestrians.

[0054] Detect the vehicle's action signals, such as turn signals, brake signals, etc. According to the signal content, the corresponding image or text is displayed by controlling the LED or laser light source in the projection lamp. The projection lamp projects the information onto the road or surrounding environment so that other vehicles or pedestrians can see it clearly.

[0055] In one embodiment, a driver may be connected between the RGB light source 20 and the control unit 10 to convert the signal output by the control unit 10 into a voltage, current or frequency suitable for driving the light.

[0056] By clearly showing the vehicle's intentions, misunderstandings and traffic accidents can be reduced. It allows drivers to communicate with their surroundings more intuitively and enhances driving pleasure. ISD projection light technology is part of the intelligent transportation system, which helps to achieve smart city traffic management and optimize road traffic efficiency.

[0057] The above-mentioned lane-merging auxiliary lighting circuit based on RGB light source is applied to the lane-merging auxiliary lighting scene by setting a control unit 10 and an RGB light source 20. The control unit 10 collects brake and accelerator signals, and realizes that the light turns green when the brake is lightly pressed, notifying the adjacent vehicle to speed up and pass; the light turns red when the accelerator is lightly pressed, notifying the adjacent vehicle to slow down and give way. The brightness change of the light source reflects the depth of the pedal being pressed, thereby increasing the overtaking auxiliary light signal indication function to improve the efficiency of merging.

[0058] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A lane-merging auxiliary lighting system based on RGB light source, characterized in that: include: A control unit and an RGB light source, wherein the control unit is connected to the vehicle body BCM system; the control unit is used to receive LIN signals from the vehicle body, wherein the LIN signals are accelerator and brake signals, and change the signals of the output pins according to the signals to form output signals; the RGB light source is used to receive the signals output by the control unit to adjust the light intensity ratio, generate multiple colors through the RGB light source, and realize the multi-color range of a single RGB light source and the rapid response of different light intensities.

2. The lane-merging auxiliary lighting system based on RGB light source according to claim 1, characterized in that: The control unit includes a main control chip U1, and the model of the main control chip U1 is IND83205.

3. The lane-merging auxiliary lighting system based on RGB light source according to claim 2, characterized in that: It also includes a power input unit, which is connected to the control unit and the RGB light source respectively.

4. The lane-merging auxiliary lighting system based on RGB light source according to claim 3, characterized in that: The power input unit includes an input circuit and a filter circuit. The input circuit is respectively connected to the power supply, the RGB light source and the filter circuit; the filter circuit is connected to the control unit.

5. The lane-merging auxiliary lighting system based on RGB light source according to claim 4, characterized in that: The input end circuit includes a capacitor C1, an anti-reverse diode D2, a resistor R2, and a capacitor C2; one end of the capacitor C1 is connected to an interface H1 connected to the power supply; the other end of the capacitor C1 is grounded; one end of the interface H1 is sequentially connected to an anti-reverse diode D2 and a resistor R2, one end of the capacitor C2 is connected to the resistor R2; the other end of the capacitor C2 is grounded; the other end of the resistor R2 is respectively connected to the RGB light source and the filter circuit.

6. The lane-merging auxiliary lighting system based on RGB light source according to claim 5, characterized in that: The filtering circuit includes a capacitor C14, a magnetic bead B1, and a capacitor C8; the magnetic bead B1 is connected to the resistor R2; one end of the capacitor C14 is grounded, and the other end is connected between the magnetic bead B1 and the resistor R2; one end of the capacitor C8 is connected, and the other end is connected to the magnetic bead B1; the end of the magnetic bead B1 connected to the capacitor C8 is connected to the control unit.

7. The lane-merging auxiliary lighting system based on RGB light source according to claim 5, characterized in that: The interface H1 is connected to a TVS tube T1 with one end grounded; the interface H1 is connected to a magnetic bead B2, the other end of the magnetic bead B2 is also connected to a capacitor C7 with one end grounded, and the magnetic bead B2 is connected to the control unit.

8. The lane-merging auxiliary lighting system based on RGB light source according to claim 1, characterized in that: The RGB light source includes an RGB lamp.

9. The lane-merging auxiliary lighting system based on RGB light source according to claim 8, characterized in that: The model of the RGB light source is NSSM313AT.

Images