A dual bluetooth vehicle halo light control system

Abstract

The utility model relates to vehicle light control technical field provides a kind of double bluetooth vehicle colorful lamp control system, including installation shell, main controller and slave controller are equipped in the installation shell, main controller and slave controller are communicated by serial communication bus;The main controller is used to collect all input signals;And drive the LED lamp strip in front of vehicle;The slave controller is used to receive the instruction of main controller and drive the LED lamp strip behind vehicle;The utility model uses UART or wired CAN bus as main communication mode, utilizes wired transmission anti-interference characteristic, ensures the stability and real-time performance of instruction transmission under complex electromagnetic environment;Bluetooth communication is used as auxiliary link, forms redundancy design, can automatically switch when main communication link is abnormal, substantially improves system fault tolerance ability;Effectively solve the signal delay, loss problem existing in traditional bluetooth synchronization scheme.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting control technology, specifically to a dual Bluetooth vehicle color light control system. Background Technology

[0002] With the rapid development of the two-wheeled electric vehicle market, users' demand for personalized vehicle decoration is increasing, and colorful LED light strips have become a popular decorative method. However, current products on the market have the following technical defects:

[0003] Existing products mainly rely on a single Bluetooth communication to achieve synchronization of the front and rear light strips. In the complex electromagnetic environment of two-wheeled electric vehicles (such as electromagnetic interference generated by motor operation and controller switching), problems such as signal transmission delay and data packet loss are prone to occur, resulting in asynchronous display of the front and rear light strips, which seriously affects the visual effect and driving safety.

[0004] Traditional products only support basic color switching and mode selection via a mobile app, and cannot effectively link with the vehicle's operating status (such as steering, braking, etc.), which limits their practicality and fails to provide auxiliary functions for safety warnings.

[0005] Two-wheeled electric vehicles generally use battery systems with voltage requirements of 48V or other symbols, resulting in significant fluctuations in the power supply environment. Most products lack professional power management design, making them prone to component damage due to voltage instability. Furthermore, they lack intelligent power consumption management mechanisms, leading to substantial standby power consumption when the vehicle is parked, posing a risk of battery depletion.

[0006] The system uses a single communication link design, which means that the entire system will fail completely when the main communication channel fails. There is no effective backup plan, and the system reliability cannot be guaranteed. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a dual Bluetooth vehicle color light control system to solve the aforementioned problems in the prior art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A dual Bluetooth vehicle lighting control system includes a mounting housing, within which a master controller and a slave controller are housed. The master controller and slave controller communicate via a serial communication bus. The master controller is used to collect all input signals and drive the LED light strip at the front of the vehicle. The slave controller is used to receive instructions from the master controller and drive the LED light strip at the rear of the vehicle.

[0010] Furthermore, the main controller is connected to the vehicle's 48V power supply and is equipped with an electronic switch controlled by the main MCU. The input of the electronic switch is connected to the vehicle's 48V power supply, and the output is supplied to the slave controller.

[0011] The LED light strips at the front and rear of the vehicle are powered by the vehicle's 48V power supply through independent step-down circuits. Their signal lines are connected to the MCU digital output pins of the main controller and the slave controller, respectively. The step-down circuits reduce the 48V power supply to 5V to power the LED light strips. The main / slave controllers have a secondary step-down circuit that reduces the 48V power supply to 3.3V to power the MCU and other chips.

[0012] Furthermore, the main controller includes a main MCU, a serial communication interface, a dual-mode Bluetooth unit, and a microphone module; the main MCU is used to process input signals from Bluetooth and the microphone, and detect the status of the vehicle signal line; after making a decision, it drives the front LED light strip and sends instructions to the slave controller through the serial bus; at the same time, it controls the on / off state of the electronic switch.

[0013] Furthermore, the main controller is connected to the vehicle's turn signal and brake light signal lines through a signal acquisition circuit to obtain the vehicle status in real time;

[0014] The dual-mode Bluetooth unit is integrated inside the main MCU. It is used to pair with mobile devices and receive commands in master mode, and at the same time, it acts as a Bluetooth master to pair with the Bluetooth slave of the slave controller, forming a redundant communication link.

[0015] The microphone module is connected to the ADC pin of the main MCU; it is used to collect ambient sound and convert it into an analog voltage signal for the main MCU to implement voice control mode.

[0016] Furthermore, the slave controller includes a slave MCU, a serial communication interface corresponding to the master controller, and a Bluetooth unit;

[0017] The MCU is used to continuously monitor the serial bus, receive and execute instructions issued by the main controller, and drive the LED strip behind to display the corresponding effects.

[0018] Furthermore, the Bluetooth unit, acting as a Bluetooth slave, can be paired with the Bluetooth host of the main controller. This Bluetooth link is mainly used for system debugging and as an emergency backup communication channel when the serial communication interface fails.

[0019] Furthermore, the digital output pin of the main MCU is connected to the data input pin of the LED light strip at the front of the vehicle; the digital output pin of the slave MCU is connected to the data input pin of the LED light strip at the rear of the vehicle.

[0020] Furthermore, the electronic switch is used to cut off or connect the power supply to the slave controller according to the instructions of the master MCU.

[0021] This invention provides a dual Bluetooth vehicle lighting control system. It offers the following advantages: It uses UART or wired CAN bus as the primary communication method, leveraging the anti-interference characteristics of wired transmission to ensure the stability and real-time performance of command transmission in complex electromagnetic environments; Bluetooth communication serves as an auxiliary link, forming a redundant design that automatically switches when the primary communication link fails, significantly improving system fault tolerance; and it effectively solves the signal delay and loss problems inherent in traditional Bluetooth synchronization schemes.

[0022] The system directly acquires key signals of the vehicle's turn signals and brake lights through a signal acquisition circuit (voltage divider resistor network, optocoupler isolation); it enables intelligent linkage between lighting effects and vehicle status, such as sequential lighting effects when turning and high-brightness warnings when braking.

[0023] A multi-stage step-down circuit is designed for the 48V battery system of two-wheeled electric vehicles to provide a stable and clean working power supply; an innovative MCU-controlled electronic switching mechanism is introduced to intelligently manage the power supply from the controller according to the vehicle status; the power supply from the controller is automatically cut off when the vehicle is parked for a long time to effectively prevent battery depletion; the dual communication link design ensures that the system can still maintain basic functions when a single link fails. Attached Figure Description

[0024] Figure 1 This is the overall connection topology diagram of this utility model; Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] See attached document Figure 1 A dual Bluetooth vehicle lighting control system includes a mounting housing, within which a master controller and a slave controller are housed. The master controller and slave controller communicate via a serial communication bus (such as UART or CAN bus). The master controller is used to collect all input signals and drive the LED light strip at the front of the vehicle. The slave controller is used to receive instructions from the master controller and drive the LED light strip at the rear of the vehicle.

[0027] The main controller is connected to the vehicle's 48V power supply and is equipped with an electronic switch controlled by the main MCU. The input of the electronic switch is connected to the vehicle's 48V power supply, and the output is powered by the slave controller.

[0028] The LED light strips at the front and rear of the vehicle are powered by the vehicle's 48V power supply through independent step-down circuits. Their signal lines are connected to the MCU digital output pins of the main controller and the slave controller, respectively. The step-down circuits reduce the 48V power supply to 5V to power the LED light strips. The main / slave controllers have a secondary step-down circuit that reduces the 48V power supply to 3.3V to power the MCU and other chips.

[0029] The main controller includes a main MCU (ESP32), a serial communication interface (such as a CAN controller module with a UART or SPI interface), a dual-mode Bluetooth unit, and a microphone module. The main MCU is used to process input signals from Bluetooth and the microphone, and to detect the status of the vehicle signal lines. After making a decision, it drives the front LED light strip and sends instructions to the slave controllers via the serial bus. At the same time, it controls the on / off state of the electronic switches.

[0030] The main controller is connected to the vehicle's turn signal and brake light signal lines through a signal acquisition circuit (such as a voltage divider resistor network or an optocoupler isolation circuit) to obtain the vehicle status in real time.

[0031] The signal acquisition circuit includes a voltage divider resistor network to adapt to different signal voltages of the two-wheeled electric vehicle, and can be equipped with an optocoupler isolation circuit to achieve electrical isolation and enhance system stability.

[0032] The dual-mode Bluetooth unit is integrated inside the main MCU. It is used to pair with mobile devices and receive commands in master mode, and at the same time, it acts as a Bluetooth master to pair with the Bluetooth slave of the slave controller, forming a redundant communication link.

[0033] The microphone module is connected to the ADC pin of the main MCU; it is used to collect ambient sound and convert it into an analog voltage signal for the main MCU to implement the voice control mode.

[0034] The slave controller includes a slave MCU (ESP32), a serial communication interface corresponding to the master controller, and a Bluetooth unit;

[0035] The MCU is used to continuously monitor the serial bus, receive and execute instructions issued by the main controller, and drive the LED strip behind to display the corresponding effects.

[0036] The Bluetooth unit acts as a Bluetooth slave and can be paired with the Bluetooth master of the main controller. This Bluetooth link is mainly used for system debugging and as an emergency backup communication channel when the serial communication interface fails.

[0037] The digital output pin of the main MCU is connected to the data input pin of the LED light strip at the front of the vehicle; the digital output pin of the slave MCU is connected to the data input pin of the LED light strip at the rear of the vehicle.

[0038] The electronic switch is used to cut off or connect the power supply to the slave controller according to the instructions of the master MCU, so as to realize remote power-off control.

[0039] Working principle: After the vehicle is powered on, the 48V power supply is connected to the main controller; the secondary step-down circuit inside the main controller converts the 48V to 3.3V to power the main MCU and other chips; the main MCU controls the electronic switch to turn on, so as to power the slave controller.

[0040] After receiving power from the controller, its MCU starts and initializes, and begins to listen for instructions sent by the master controller through the serial communication bus (such as UART). At the same time, the Bluetooth unit of the controller enters slave mode, waiting to pair with the Bluetooth host of the master controller and establish a redundant Bluetooth communication link.

[0041] The main controller monitors the vehicle's turn signal and brake light signal lines in real time through signal acquisition circuits (such as voltage divider resistor networks); when the level of these signal lines changes, the main MCU can immediately identify whether the vehicle is turning or braking.

[0042] The user's mobile device (such as a mobile APP) is paired and connected to the dual-mode Bluetooth unit of the main controller (as the host). The lighting effect mode, color, and brightness command selected by the user through the APP are sent to the main MCU.

[0043] The microphone module continuously collects ambient sound and converts it into an analog voltage signal, which is then sent to the ADC pin of the main MCU. The main MCU analyzes the characteristics of this signal (such as rhythm and volume) to execute specific voice control commands, such as changing the lighting effects in sync with the music.

[0044] The main MCU makes decisions based on the various signals received (vehicle status signals, Bluetooth commands, voice control signals) according to preset priorities (vehicle safety signals such as braking and steering usually have priorities) to determine the lighting effect that should be displayed at the moment.

[0045] Based on the decision result, the main MCU sends the corresponding control signal to the LED light strip in front of the vehicle through its digital output pin, driving it to display the corresponding effect;

[0046] At the same time, the master MCU sends the data packet containing the lighting effect instructions to the slave controller via the serial communication bus.

[0047] The MCU of the controller continuously listens to the serial communication bus. Once it receives a command from the main controller, it immediately parses it and drives the LED light strip at the rear of the vehicle through its digital output pin to display a lighting effect that is synchronized or complementary to the light strip at the front. This achieves unified and coordinated control of the front and rear light strips of the vehicle.

[0048] The master and slave controllers primarily communicate via a serial communication bus. If the serial communication bus is interrupted, the system can automatically or manually switch to a redundant Bluetooth communication link. The master controller's Bluetooth host sends commands directly to the slave controller's Bluetooth slave, ensuring the rear LED strip remains controllable and improving system reliability. This link can also be used for system debugging.

[0049] The master MCU can cut off the power supply to the slave controller by controlling the electronic switch; this can be used to achieve energy saving or fault recovery when the system is in standby mode or when the slave controller needs to be remotely reset.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dual Bluetooth vehicle color-changing light control system, characterized in that, The system includes a mounting housing, within which are a main controller and a slave controller that communicate via a serial communication bus. The main controller is used to collect all input signals and drive the LED light strip at the front of the vehicle. The slave controller is used to receive instructions from the main controller and drive the LED light strip at the rear of the vehicle.

2. The dual Bluetooth vehicle color light control system as described in claim 1, characterized in that: The main controller is connected to the vehicle's 48V power supply and is equipped with an electronic switch controlled by the main MCU. The input of the electronic switch is connected to the vehicle's 48V power supply, and the output is powered by the slave controller. The LED light strips at the front and rear of the vehicle are powered by the vehicle's 48V power supply through independent step-down circuits. Their signal lines are connected to the MCU digital output pins of the main controller and the slave controller, respectively. The step-down circuits reduce the 48V power supply to 5V to power the LED light strips. The main / slave controllers have a secondary step-down circuit that reduces the 48V power supply to 3.3V to power the MCU and other chips.

3. The dual Bluetooth vehicle color light control system as described in claim 1, characterized in that: The main controller includes a main MCU, a serial communication interface, a dual-mode Bluetooth unit, and a microphone module; the main MCU is used to process input signals from Bluetooth and the microphone, and to detect the status of the vehicle signal lines. After making the decision, it drives the front LED light strip and sends instructions to the slave controller via the serial bus; at the same time, it controls the on / off state of the electronic switch.

4. A dual Bluetooth vehicle color light control system as described in claim 3, characterized in that: The main controller is connected to the vehicle's turn signal and brake light signal lines through a signal acquisition circuit to obtain the vehicle status in real time. The dual-mode Bluetooth unit is integrated inside the main MCU. It is used to pair with mobile devices and receive commands in master mode, and at the same time, it acts as a Bluetooth master to pair with the Bluetooth slave of the slave controller, forming a redundant communication link. The microphone module is connected to the ADC pin of the main MCU; it is used to collect ambient sound and convert it into an analog voltage signal for the main MCU to implement voice control mode.

5. A dual Bluetooth vehicle color-changing light control system as described in claim 1, characterized in that: The slave controller includes a slave MCU, a serial communication interface corresponding to the master controller, and a Bluetooth unit; The MCU is used to continuously monitor the serial bus, receive and execute instructions issued by the main controller, and drive the LED strip behind to display the corresponding effects.

6. A dual Bluetooth vehicle color-changing light control system as described in claim 5, characterized in that: The Bluetooth unit acts as a Bluetooth slave and can be paired with the Bluetooth master of the main controller. This Bluetooth link is mainly used for system debugging and as an emergency backup communication channel when the serial communication interface fails.

7. A dual Bluetooth vehicle color-changing light control system as described in claim 3, characterized in that: The digital output pin of the main MCU is connected to the data input pin of the LED light strip at the front of the vehicle; the digital output pin of the slave MCU is connected to the data input pin of the LED light strip at the rear of the vehicle.

8. A dual Bluetooth vehicle color light control system as described in claim 2, characterized in that: The electronic switch is used to cut off or connect the power supply to the slave controller according to the instructions of the master MCU.

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