Atmosphere lamp control method and system, electronic equipment, computer readable storage medium and vehicle

Abstract

The invention relates to the technical field of automotive electronics, and discloses an atmosphere lamp control method and system, electronic equipment, a computer readable storage medium and a vehicle. In order to solve the problems that an existing atmosphere lamp rhythm system is limited in processing precision, prone to being interfered by environmental noise, delayed, high in energy consumption and the like, a piezoelectric vibration sensor is arranged on the inner surface of a vehicle door skin, and a vehicle body vibration signal generated by sound played by a loudspeaker is collected and converted into an initial electric signal; and through rectification and voltage stabilization of the atmosphere lamp control circuit, the linear linkage characteristic of the vibration amplitude and the voltage intensity is kept, and an adaptive distribution signal is obtained to drive the atmosphere lamp. According to the scheme, the energy consumption of the whole vehicle can be reduced, the linkage of the atmosphere lamp and music is improved, the use of wire harnesses is reduced, and the computing power demand of the whole vehicle is reduced.

Description

Technical Field

[0001] The solution of the present invention relates to the field of automotive electronics, and particularly to an ambient light control method, system, electronic device, computer-readable storage medium and vehicle. Background Art

[0002] Currently, the ambient light rhythm systems in the industry usually adopt the following three methods:

[0003] Audio signal acquisition and processing: Taking audio through a microphone or amplifier and controlling the light effect after parsing. The disadvantage is that the processing accuracy is limited, it is difficult to follow complex rhythms, and it is easily interfered by ambient noise, affecting the linkage effect.

[0004] Central control system algorithm control: Relying on the computing power of the central control to parse music and control the lights. The disadvantage is that it occupies a large amount of computing power, may slow down the system, and there is a delay, destroying the audio-visual coordination.

[0005] Independent rhythm controller: Separately configuring a controller to process audio and control the lights. The disadvantage is that the data transmission and parsing are cumbersome, the signal is easily lost or delayed, and the stability is even worse during wireless transmission. Summary of the Invention

[0006] The present application provides an ambient light control method, system, electronic device, computer-readable storage medium and vehicle. By arranging a piezoelectric vibration sensor on the inner surface of the door skin and in the same cavity as the speaker, the vibration generates voltage to supply power to the ambient light, so as to at least partially solve the above technical problems.

[0007] In a first aspect, an ambient light control method is provided, and the method includes: collecting vibration signals generated by a speaker; controlling the ambient light according to the vibration signals.

[0008] Optionally, the vibration signals are collected by a piezoelectric vibration sensor and converted into an initial voltage signal; the ambient light is controlled according to the initial voltage signal.

[0009] Optionally, the controlling the ambient light according to the initial voltage signal further includes: inputting the initial voltage signal into an ambient light control circuit electrically connected to the ambient light to obtain an adapted voltage signal, and there is a linear mapping relationship between the voltage value of the adapted voltage signal and the brightness of the ambient light.

[0010] Optionally, the ambient light control circuit includes a voltage regulation unit for rectifying, stabilizing the voltage and retaining one or more of the linear mapping relationships for the initial voltage signal.

[0011] Optionally, the ambient light control circuit further includes an energy storage unit for storing the electrical energy of the initial voltage signal or the adapted voltage signal.

[0012] Optionally, the piezoelectric vibration sensor is disposed on the inner surface of the vehicle door panel, in the same cavity as the speaker.

[0013] Optionally, the piezoelectric vibration sensor includes a housing with a concave structure; pins disposed on one side of the housing for transmitting the initial voltage signal; a cover plate disposed on the other side of the housing; a piezoelectric ceramic sheet attached to a PCB board, the piezoelectric ceramic sheet and the PCB board being disposed within the housing; and adhesive tape disposed on the side of the cover plate away from the housing.

[0014] In a second aspect, an ambient lighting control system is provided, the system being used to implement the steps of the ambient lighting control method according to any one of claims 1-7.

[0015] Thirdly, this application also provides an electronic device, including a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the steps of the ambient light control method described in any of the preceding claims.

[0016] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to perform the steps of the ambient light control method described in any of the above methods.

[0017] Fifthly, this application also provides a vehicle that performs the ambient lighting control method as described in any of the preceding claims, or includes the ambient lighting control system as described above, or includes the electronic equipment as described above.

[0018] The technical solution of this invention can reduce the energy consumption of the whole vehicle, improve the linkage between ambient lighting and music, reduce the use of wiring harnesses, and reduce the computing power requirements of the whole vehicle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A flowchart of an ambient lighting control method provided in this application embodiment.

[0021] Figure 2 Flowchart of another ambient light control method provided in this application embodiment

[0022] Figure 3 A structural diagram of an ambient lighting control system provided in this application embodiment.

[0023] Figure 4 A schematic diagram of an ambient lighting control system layout provided in this application embodiment.

[0024] Figure 5 A schematic diagram of a piezoelectric vibration sensor structure provided in this application embodiment.

[0025] Figure 6 A schematic diagram of the adhesion of a piezoelectric vibration sensor provided in an embodiment of this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0028] Please see Figure 1 , Figure 1 A flowchart of an ambient lighting control method provided in this application embodiment specifically includes:

[0029] The S110 collects vibration signals generated by the loudspeaker.

[0030] By acquiring vibration signals associated with the sound played by the speaker, input data is provided for subsequent ambient lighting control.

[0031] In one embodiment provided in this application, the data acquisition component is a piezoelectric vibration sensor. The sensor can be fixed to the inner surface of the door panel and is located in the same cavity as the speaker. When the speaker plays sound, the vibration is directly transmitted to the body panel, reducing signal delay or distortion. The essence of the vibration signal is that when the speaker plays sound, its diaphragm vibration is transmitted to the door panel through the mounting structure, causing the body structure to produce mechanical vibrations that are strongly synchronized with the rhythm and volume of the sound.

[0032] The piezoelectric vibration sensor incorporates a piezoelectric ceramic plate, exhibiting the piezoelectric effect. When the speaker's vibration is transmitted to the sensor, the piezoelectric ceramic plate generates an AC pulse voltage due to mechanical deformation. The greater the vibration amplitude, the higher the voltage peak value; the faster the vibration frequency, the higher the voltage pulse frequency. At this point, the speaker's vibration signal is converted into a quantifiable initial voltage signal.

[0033] S120 controls the ambient light according to the vibration signal.

[0034] This step needs to solve two problems: 1. How to process the collected initial voltage signal into electrical energy that can be used by the ambient light; 2. How to ensure that the changes in lighting effects are linked to the vibration signal.

[0035] The specific process can be divided into two parts: signal preprocessing and lighting effect control.

[0036] Phase 1: Preprocessing of vibration signals.

[0037] Since the initial voltage signal acquired is an AC pulse voltage, it suffers from voltage instability and may exceed the rated voltage of the ambient light, making it unsuitable for direct driving. Therefore, it needs to be processed through an ambient light control circuit. The ambient light control circuit includes a rectifier unit, a voltage regulator unit, and a capacitor energy storage module.

[0038] The rectifier unit has a built-in bridge rectifier circuit. The bridge rectifier circuit uses the unidirectional conductivity of 4 diodes to convert AC power into unidirectional pulsating DC power, retaining only the positive part of the voltage and eliminating negative fluctuations, thus converting AC power into DC power.

[0039] The voltage regulator unit incorporates a low-dropout linear regulator (LDO). Since the rated operating voltage of ambient lights is typically 5-12V, the LDO stabilizes the voltage within this range and handles voltage fluctuations caused by changes in vibration amplitude. For example, when the music volume is high and the vibration is intense, the sensor output voltage may exceed 12V (e.g., reaching 15V). The LDO automatically limits the peak output voltage to prevent the ambient light from burning out due to overvoltage. When the music volume is low and the vibration is weak, the sensor output voltage may be below 5V (e.g., only 3V). In this case, the capacitor energy storage module in the control circuit releases previously stored electrical energy, including the electrical energy generated by vehicle vibration, to maintain an output voltage of no less than 5V, ensuring the ambient light does not turn off. Furthermore, the LDO does not fix the voltage but maintains a linear relationship where the higher the vibration amplitude, the higher the output voltage.

[0040] Phase 2: Lighting effect control based on preprocessed signals.

[0041] After preprocessing, a stable and synchronized DC voltage is obtained, which is the adaptive voltage signal. This signal can be directly used as the power supply and control signal for the ambient lights, without relying on a central control system or independent controller, thus achieving zero-delay lighting effect control.

[0042] Ambient lighting can use LED modules, and the control logic is entirely determined by voltage signals. The voltage of the adapter signal directly corresponds to the brightness of the LED. The stronger the music volume or rhythm, the stronger the vibration, the higher the voltage, the greater the current flowing through the LED, and the higher the brightness; conversely, the weaker the vibration, the lower the voltage, and the lower the brightness.

[0043] The voltage pulse frequency corresponds to the vibration frequency, meaning the tempo of the music directly corresponds to the flashing rhythm of the LED. When the rhythm is fast, the voltage pulse frequency is high, and the LED brightness changes frequently, resulting in a rapid flashing effect; when the rhythm is slow, the voltage pulse frequency is low, and the LED brightness changes frequently, resulting in a slow, gradual change effect.

[0044] When the system is not in a music-rhythm mode, the control circuit can flexibly adapt through the capacitor energy storage module. When the music-rhythm mode is on, the capacitor module provides auxiliary power. When the voltage generated by vibration briefly drops below 5V, the capacitor releases energy to replenish it, preventing the lighting effect from flickering or interrupting. When the music-rhythm mode is off, the capacitor module stores energy. At this time, the ambient lights do not work. During vehicle operation, the vibration of the vehicle body (not driven by the speakers) is converted into electrical energy by the piezoelectric sensor and stored in the capacitor. This energy is used when the rhythm mode is activated again, which can further reduce the overall vehicle energy consumption.

[0045] Please see Figure 2 , Figure 2 A flowchart of another ambient light control method provided in this application embodiment specifically includes:

[0046] S210 speaker plays music;

[0047] This step is the starting point of the entire control process, and its core function is to generate a vibration source.

[0048] Speakers are typically mounted inside the cavity structure of a car door, such as the cavity between the door trim panel and the skin.

[0049] S220 vibration is transmitted to the sensor surface;

[0050] This step serves as a bridge connecting the source vibration and signal acquisition, ensuring that vehicle body vibration is transmitted to the piezoelectric vibration sensor efficiently and without distortion.

[0051] The sensor is fixed to the inner surface of the door panel with high-adhesion adhesive tape. Before installation, the panel surface must be cleaned (to remove oil and dust) and pressure applied. This process ensures that the sensor fits the panel seamlessly, and vibration can be directly transmitted to the sensor through the solid, without vibration loss caused by air gaps.

[0052] The S230 sensor collects vibration signals and generates voltage signals.

[0053] This step is the core of achieving self-powered operation. It uses the piezoelectric effect of a piezoelectric vibration sensor to convert physical vibrations into voltage signals that can be used to drive ambient lights.

[0054] The working principle of the piezoelectric effect is as follows: A piezoelectric ceramic sheet, made of piezoelectric material, is characterized by the separation of positive and negative charges within it when subjected to mechanical pressure, generating a voltage at its two electrodes. When vibration is transmitted to the sensor cover, the cover compresses the piezoelectric ceramic sheet, generating a positive voltage. When the vibration rebounds, the ceramic sheet recovers its deformation, generating a reverse voltage. Continuous vibration causes the ceramic sheet to deform alternately, thus outputting alternating positive and negative AC pulse voltages. The output AC pulse voltage is completely linearly correlated with the vibration signal; it is positively correlated with the vibration amplitude (the stronger the vibration, the greater the deformation of the ceramic sheet, and the higher the peak voltage, typically reaching 5-15V); and it is positively correlated with the vibration frequency (the faster the vibration, the higher the frequency of alternating deformation of the ceramic sheet, and the voltage pulse frequency is synchronously matched).

[0055] The S240 voltage signal is input to the ambient lighting control circuit.

[0056] The sensor is directly connected to the ambient lighting control circuit via pins. The control circuit, sensor, and ambient lighting are located close to each other (e.g., in the door area), eliminating the need to connect to the central control system through the vehicle's wiring harness. This avoids signal attenuation or interference caused by long-distance transmission, while also reducing the amount of wiring in the vehicle, which is in line with lightweight design principles.

[0057] The S250 voltage regulation unit processes the voltage signal into an adaptive voltage signal.

[0058] This step uses the processed adaptive voltage signal to directly drive the ambient lights to achieve dynamic lighting effects synchronized with the music.

[0059] Please see Figure 3 , Figure 3 The present application provides a structural diagram of an ambient lighting control system, specifically including: a signal acquisition module 310 and an ambient lighting control circuit 320.

[0060] The core component of the signal acquisition module 310 is a piezoelectric vibration sensor, which is used to acquire vibration signals and convert them into initial electrical signals. It is the basis for the system's self-powered operation and delay-free linkage.

[0061] The ambient lighting control circuit 320 is the central hub of the system, including a voltage regulation unit and an energy storage unit. Its core function is to convert the unstable initial electrical signal into a safe, adaptable electrical signal that retains the linkage characteristics, while achieving efficient energy utilization.

[0062] Please see Figure 4 , Figure 4 This is a schematic diagram of an ambient lighting control system provided in an embodiment of this application. A piezoelectric vibration sensor 410 is attached to a cavity on the inner surface of the door panel.

[0063] The ambient light control circuit 420 transmits the initial electrical signal generated by the vibration collected by the sensor to the control circuit, enabling the control circuit to perform "rectification, voltage regulation, and retention of linkage characteristics" on the electrical signal, and finally outputs the appropriate electrical signal to drive the ambient light.

[0064] Speaker 430 is installed in the lower area of ​​the car door and is the source of vibration. When music is played, the mechanical vibration of the speaker diaphragm is transmitted to the surroundings through the internal structure of the car door, providing the energy input source for the entire ambient lighting rhythm system.

[0065] Please see Figure 5 , Figure 5 This application provides a schematic diagram of a piezoelectric vibration sensor structure, specifically including:

[0066] Sensor pin 510 is located on the upper part of the sensor and is the output interface for electrical signals and power. It is used to transmit the electrical signals generated by the piezoelectric ceramic sheet to the external ambient light control circuit, providing signal and energy input for subsequent voltage processing and lighting effect driving.

[0067] The sensor housing 520 wraps around the internal components, providing mechanical protection and support. It can withstand vibrations, dust, and moisture inside the car, ensuring that internal components (such as PCB boards and piezoelectric ceramic sheets) work stably under complex conditions.

[0068] The PCB (printed circuit board) 530 is located inside the sensor, carrying electrodes and signal transmission circuits, and is responsible for organizing and transmitting electrical signals: after collecting the weak electrical signals generated by the piezoelectric ceramic sheet, it is efficiently output through the sensor pins, reducing signal loss during transmission.

[0069] The sensor cover 540 is located on the outside of the piezoelectric ceramic sheet, near the adhesive tape, and has both protection and vibration transmission functions: on the one hand, it protects the piezoelectric ceramic sheet from direct damage during the installation process or external environment; on the other hand, it can uniformly transmit external mechanical vibrations, such as those from the door panel, to the piezoelectric ceramic sheet, ensuring the stability and consistency of vibration acquisition.

[0070] The adhesive tape 550 serves as a connection between the sensor and the mounting surface (such as the inner surface of a car door panel), ensuring a secure bond to the sensor. Various types of adhesives can be selected, including acrylic adhesives, modified epoxy adhesives, and polyurethane adhesives. These adhesives must possess strong adhesion and vibration resistance to ensure a tight fit between the sensor and the mounting surface, minimizing energy attenuation during vibration transmission.

[0071] The piezoelectric ceramic sheet 560 is the core functional component of the sensor. It uses the "piezoelectric effect" to realize the conversion of "mechanical vibration to electrical energy": when external vibration is transmitted to the ceramic sheet through the sensor cover, the ceramic sheet generates an AC pulse voltage due to mechanical deformation, which provides the basic energy and signal source for the self-powered ambient light and rhythm control.

[0072] Please see Figure 6 , Figure 6 This application provides a schematic diagram of the adhesion of a piezoelectric vibration sensor, specifically including:

[0073] Figure 6 is a schematic diagram of the adhesion of the piezoelectric vibration sensor, showing the installation method of the sensor on the inner surface of the car door skin. The labeled components and adhesion logic are as follows:

[0074] The piezoelectric vibration sensor body 610 is firmly attached to the mounting position 630 on the inner surface of the door panel by adhesive tape 620. The inner surface 640 of the door panel serves as the mounting base for the sensor. The mechanical vibration generated when the speaker plays music will be transmitted to the sensor through the panel.

Claims

1. An ambient lighting control method, applied to a vehicle, characterized in that, include: Collect vibration signals generated by the speaker; control the ambient lights based on the vibration signals.

2. The ambient lighting control method according to claim 1, characterized in that, The vibration signal is acquired by a piezoelectric vibration sensor and converted into an initial voltage signal; the ambient light is controlled according to the initial voltage signal.

3. The ambient lighting control method according to claim 2, characterized in that, The step of controlling the ambient light according to the initial voltage signal further includes: inputting the initial voltage signal to an ambient light control circuit electrically connected to the ambient light to obtain an adaptive voltage signal, wherein the voltage value of the adaptive voltage signal has a linear mapping relationship with the brightness of the ambient light.

4. The ambient lighting control method according to claim 3, characterized in that, The ambient light control circuit includes a voltage regulation unit for rectifying, stabilizing, and retaining one or more of the linear mapping relationships of the initial voltage signal.

5. The ambient lighting control method according to claim 4, characterized in that, The ambient light control circuit also includes an energy storage unit for storing the electrical energy of the initial voltage signal or the adaptive voltage signal.

6. The ambient lighting control method according to claim 2, characterized in that, The piezoelectric vibration sensor is disposed on the inner surface of the vehicle door panel and is located in the same cavity as the speaker.

7. The ambient lighting control method according to claim 2 or 6, characterized in that, The piezoelectric vibration sensor includes a housing with a concave structure and pins disposed on one side of the housing for transmitting the initial voltage signal. A cover plate is disposed on the other side of the housing; a piezoelectric ceramic sheet is attached to a PCB board, and the piezoelectric ceramic sheet and the PCB board are disposed inside the housing; an adhesive tape is disposed on the side of the cover plate away from the housing.

8. An ambient lighting control system, characterized in that, The system is used to implement the steps of the ambient light control method according to any one of claims 1-7.

9. An electronic device, characterized in that, The device includes a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the steps of the ambient lighting control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, It stores a computer program, which is loaded by a processor to execute the steps of the ambient lighting control method according to any one of claims 1 to 7.

11. A vehicle, characterized in that, Ambient lighting control is performed by executing the ambient lighting control method as described in any one of claims 1 to 7, or includes the ambient lighting control system as described in claim 8, or includes the electronic device as described in claim 9.

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