Light control equipment and vehicle light system

Abstract

The utility model provides light control equipment and a vehicle light system. The light control equipment comprises an audio transceiver module, a data signal processing module and a light driving module, the data signal processing module comprises a first filter, a gain component and an envelope identification component; the first filter extracts first audio data of a preset frequency band and second audio data outside the preset frequency band from the audio data sent by the audio transceiver module, and the preset frequency band is a frequency band sensitive to human ear perception; the gain component enhances the signal strength of the first audio data and reduces the signal strength of the second audio data; and the envelope identification component generates a light driving signal according to the signal intensity change condition of the audio data after the signal intensity adjustment, so that a light driving module drives light. According to the scheme, the signal intensity sensitive to human ear perception in the audio data is enhanced, the signal intensity insensitive to human ear perception is reduced, the false flash problem caused by unobvious human ear hearing is avoided, and the user perception accuracy and the user experience are improved.

Description

Technical Field

[0001] The present application relates to the field of intelligent vehicle technology, and in particular to a lighting control device and a vehicle lighting system. Background Art

[0002] With the rapid adoption of smart cars, people are spending significantly more time in their vehicles. The need for in-car intelligence is also a key development focus. To enhance in-car comfort, lights can be made to flash in tandem with music playing. Existing lighting control methods determine the flashing frequency of the lights by identifying the frequency of the music. However, due to the varying sensitivity of the human ear to different audio frequency bands, this control method can lead to false flashes. For example, with music in the high-frequency range, the lights will clearly flash, but the human ear will not be able to hear the false flashes. This can cause user perception errors and affect the user experience. Utility Model Content

[0003] Based on the above needs, this application proposes a lighting control device and a vehicle lighting system, which can avoid false flashing of lights, improve user perception accuracy, and thus improve user experience.

[0004] To achieve the above objectives, this application proposes the following technical solutions:

[0005] According to a first aspect of an embodiment of the present application, a lighting control device is provided, comprising: an audio transceiver module, a data signal processing module, and a lighting driver module; the data signal processing module comprises: a first filter, a gain component, and an envelope recognition component;

[0006] The first filter is connected to the audio transceiver module and is used to extract first audio data in a preset frequency band and second audio data outside the preset frequency band from the audio data sent by the audio transceiver module; wherein the preset frequency band is a frequency band that is sensitive to human ear perception;

[0007] The gain component is connected to the first filter and the envelope recognition component respectively, and is used to enhance the signal strength of the first audio data and reduce the signal strength of the second audio data, and output the audio data with adjusted signal strength to the envelope recognition component;

[0008] The envelope recognition component is connected to the light driving module and is used to generate a light driving signal according to the signal strength change of the audio data after the signal strength adjustment, so that the light driving module drives the light according to the light driving signal.

[0009] Optionally, the data signal processing module further includes: a processor;

[0010] The processor is connected to the first filter and is configured to perform human ear auditory response simulation processing on the audio data sent by the audio transceiver module according to the human ear auditory response time, and transmit the processed audio data to the first filter.

[0011] Optionally, the data signal processing module further includes: a second filter;

[0012] The second filter is connected to the audio transceiver module and is used to extract third audio data with a signal strength greater than a preset signal strength and a dynamic range smaller than a preset range from the audio data;

[0013] The gain component is connected to the second filter and is further used to perform gain control on the third audio data.

[0014] Optionally, the lighting control device further includes: a power module;

[0015] The power supply module is respectively connected to the external power supply, the audio transceiver module, the data signal processing module and the light driving module.

[0016] Optionally, the power supply module includes: a buck converter, a first linear regulator and a second linear regulator;

[0017] The step-down converter is respectively connected to the external power supply, the data signal processing module and the light driving module;

[0018] The first linear regulator is connected to the buck converter and the data signal processing module respectively;

[0019] The second linear regulator is connected to the external power supply and the audio transceiver module respectively.

[0020] Optionally, the light driving module includes: a controller and a driving chip;

[0021] The controller is connected to the envelope recognition component via the SPI protocol, and the controller is connected to the driver chip via the I2C protocol.

[0022] Optionally, the audio transceiver module includes: an A2B transceiver;

[0023] The A2B transceiver is connected to the audio device and the first filter respectively, and is used to convert the initial audio data sent by the audio device into a TDM signal, and send the TDM signal as audio data to the first filter.

[0024] Optionally, the data signal processing module further includes: a decoder;

[0025] The decoder is connected to the audio transceiver module and the first filter respectively, and is used to decode the TDM signal sent by the audio transceiver module and send the decoded audio data to the first filter.

[0026] According to a second aspect of an embodiment of the present application, there is provided a vehicle lighting system, comprising: an audio device, a light, and the above-mentioned lighting control device;

[0027] The lighting control device is connected to the audio device and the lamp respectively.

[0028] Optionally, the vehicle lighting system further includes: an on-board power supply;

[0029] The vehicle-mounted power supply is connected to the lighting control device.

[0030] The lighting control device proposed in this application includes: an audio transceiver module, a data signal processing module and a lighting driver module; the data signal processing module includes: a first filter, a gain component and an envelope recognition component; the first filter is connected to the audio transceiver module, and is used to extract first audio data in a preset frequency band and second audio data outside the preset frequency band from the audio data sent by the audio transceiver module; wherein the preset frequency band is a frequency band that is sensitive to human ear perception; the gain component is respectively connected to the first filter and the envelope recognition component, and is used to enhance the signal strength of the first audio data and reduce the signal strength of the second audio data, and output the audio data with adjusted signal strength to the envelope recognition component; the envelope recognition component is connected to the lighting driver module, and is used to generate a lighting drive signal based on the change in the signal strength of the audio data with adjusted signal strength, so that the lighting driver module drives the light according to the light drive signal. By adopting the technical solution of the present application, the signal strength of the frequency band in the audio data that is sensitive to the human ear can be adjusted to a higher signal strength, while the signal strength of the frequency band that is not sensitive to the human ear can be adjusted to a lower signal strength, thereby improving the lighting effect of the frequency band that is sensitive to the human ear and weakening the lighting effect of the frequency band that is not sensitive to the human ear, avoiding the problem of false flashes that are not obvious to the human ear, and thus improving the user perception accuracy and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0032] Figure 1 A schematic diagram of the structure of a lighting control device provided in an embodiment of the present application;

[0033] Figure 2 A schematic diagram of the structure of another lighting control device provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of the structure of another lighting control device provided in an embodiment of the present application;

[0035] Figure 4 A schematic diagram of the structure of another lighting control device provided in an embodiment of the present application;

[0036] Figure 5 A schematic diagram of the structure of another lighting control device provided in an embodiment of the present application;

[0037] Figure 6 A schematic diagram of the structure of another lighting control device provided in an embodiment of the present application;

[0038] Figure 7 A schematic diagram of the structure of another lighting control device provided in an embodiment of the present application;

[0039] Figure 8 A circuit connection diagram of a lighting control device provided in an embodiment of the present application;

[0040] Figure 9 A circuit connection diagram of the power module provided in an embodiment of the present application;

[0041] Figure 10 A schematic structural diagram of a vehicle lighting system provided in an embodiment of the present application;

[0042] Figure 11 A schematic structural diagram of another vehicle lighting system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] The technical solution of the embodiment of the present application is applicable to the application scenario of smart cars, specifically for the application scenario of light control. The technical solution of the embodiment of the present application can avoid false flashing of lights, improve the user's perception accuracy, and thus improve the user experience.

[0044] With the rapid adoption of smart cars, people are spending significantly more time in their vehicles. The need for intelligent interiors is also a key development focus. Ambient lighting is essential to enhancing in-car comfort. It can create a comfortable and welcoming environment for drivers and passengers, reducing driving fatigue. For example, when music is playing in the car, the lighting can sync with the music to enhance the user's listening experience.

[0045] The existing lighting control method is to determine the beat of the music by identifying the frequency of the music, and then determine the flashing frequency of the lights according to the beat of the music. However, the human ear has different sensitivities to different audio frequency bands. The audio that the human ear can hear is between 20Hz and 20kHz, which belongs to the mid-frequency band. However, the human ear is not sensitive to audio in the high-frequency band. However, the lights will obviously flash according to the frequency of the high-frequency band, which will make users think that the lights are flashing incorrectly. In other words, the false flash problem that is not obvious to the human ear causes user perception deviation, which in turn affects the user experience.

[0046] Based on this, the present application proposes a lighting control device. This technical solution can use a gain component to adjust the signal strength of the frequency band in the audio data that is sensitive to the human ear to a higher signal strength, and adjust the signal strength of the frequency band that is not sensitive to the human ear to a lower signal strength, thereby improving the lighting effect of the frequency band that is sensitive to the human ear and weakening the lighting effect of the frequency band that is not sensitive to the human ear, avoiding the problem of false flashes that are not obvious to the human ear, thereby solving the problem of user perception accuracy deviation in the existing technology, affecting the user experience.

[0047] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0048] Exemplary devices

[0049] See also Figure 1 As shown, an embodiment of the present application provides a lighting control device. The lighting control device includes an audio transceiver module 101, a data signal processing module 102, and a lighting driver module 103. The data signal processing module 102 includes a first filter 1021, a gain component 1022, and an envelope identification component 1023. Specifically, the audio transceiver module 101 is connected to the first filter 1021 in the data signal processing module 102, the first filter 1021 is connected to the gain component 1022, the gain component 1022 is connected to the envelope identification component 1023, and the envelope identification component 1023 in the data signal processing module 102 is connected to the lighting driver module 103.

[0050] In this embodiment, the audio transceiver module 101 is connected to an external audio device (e.g., an in-vehicle audio device) and is capable of receiving audio data output by the audio device and transmitting the received audio data to the data signal processing module 102. The first filter 1021 in the data signal processing module 102 filters the audio data received by the data signal processing module 102 according to a preset frequency band, i.e., extracting data in the preset frequency band from the audio data as first audio data and extracting data outside the preset frequency band from the audio data as second audio data. The preset frequency band is a frequency band sensitive to human ear perception, for example, the frequency band of 20 Hz to 20 kHz is a frequency band sensitive to human ear perception. The preset frequency band is set to the frequency band of 20 Hz to 20 kHz, and the frequency band outside the frequency band of 20 Hz to 20 kHz is set as the frequency band outside the preset frequency band. That is, the data in the frequency band of 20 Hz to 20 kHz from the audio data is extracted as the first audio data, and the data outside the frequency band of 20 Hz to 20 kHz from the audio data is extracted as the second audio data.

[0051] After the first filter 1021 extracts the first audio data and the second audio data, the gain component 1022 in the data signal processing module 102 is used to enhance the signal strength of the first audio data and reduce the signal strength of the second audio data. That is, the signal strength of the audio data that is sensitive to human ear perception is enhanced, and the signal strength of the audio data that is not sensitive to human ear perception is weakened. After adjusting the signal strength of the first audio data and the second audio data in the audio data, the audio data with adjusted signal strengths are transmitted to the envelope identification component 1023 in the data signal processing module 102. In this embodiment, the data signal processing module 102 preferably adopts a DSP module, and the gain component 1022 in the data signal processing module 102 preferably adopts a programmable gain amplifier (PGA) or a digital gain control unit. The PGA is an electronic amplifier that can adjust its gain as needed. In the DSP module, the PGA is used to change the amplitude of the audio signal, thereby adjusting the signal strength. In the field of digital signal processing, gain control can also be implemented in a purely digital manner. The digital gain control unit specifically adjusts the amplitude of the digital audio signal by performing mathematical operations (such as multiplication) on the digital gain control unit.

[0052] After the envelope identification component 1023 in the signal processing module 102 obtains the audio data after signal strength adjustment output by the gain component, it generates a light driving signal based on the signal strength change of the audio data after signal strength adjustment, and transmits the light driving signal to the light driving module 103. The envelope identification component 1023 can determine the envelope (i.e., profile) of the audio signal amplitude change over time based on the signal strength change of the audio data after signal strength adjustment. Then, based on a preset correspondence between the audio signal amplitude change and light driving, it determines a light driving method based on the audio signal amplitude change as the light driving signal.

[0053] Since the first audio data in the audio data after signal strength adjustment is audio data that is sensitive to human ear perception after signal strength enhancement, the light driving signal generated by the envelope recognition component 1023 according to the signal strength change in the first audio data has a stronger lighting effect, while the second audio data in the audio data after signal strength adjustment is audio data that is insensitive to human ear perception after signal strength reduction, the light driving signal generated by the envelope recognition component 1023 according to the signal strength change in the second audio data has a weaker lighting effect, thereby avoiding the false flashing of audio data that is insensitive to human ear perception, reducing user perception deviation, improving user perception accuracy, and thereby improving user experience.

[0054] In this embodiment, envelope recognition is adopted according to the signal strength change of the audio data. The means for determining the light driving signal adopts the existing technology of driving lights based on envelope recognition, which will not be elaborated in detail in this embodiment.

[0055] After receiving the light driving signal transmitted by the envelope recognition component 1023 in the signal processing module 102, the light driving module 103 drives the light according to the light driving signal, thereby enabling the light to flash in conjunction with the audio data output by the audio device, thereby improving the user experience and comfort. The specific implementation method of the light driving module 103 driving the light according to the light driving signal in this embodiment is the same as the technical means used in the prior art to drive the light according to the light driving signal, and will not be further elaborated in this embodiment.

[0056] From the above introduction, it can be seen that in the lighting control device proposed in the embodiment of the present application, the gain component 1022 in the data signal processing module 102 can adjust the signal strength of the frequency band that is sensitive to the human ear in the audio data to a higher signal strength, and adjust the signal strength of the frequency band that is not sensitive to the human ear to a lower signal strength, thereby improving the lighting effect of the frequency band that is sensitive to the human ear and weakening the lighting effect of the frequency band that is not sensitive to the human ear, avoiding the problem of false flashes that are not obvious to the human ear, and thus improving the user perception accuracy and user experience.

[0057] As an optional implementation, see Figure 2 As shown, in another embodiment of the present application, the data signal processing module 102 further includes a processor 1024. The processor 1024 is connected to the audio transceiver module 101 and the first filter 1021, respectively. Specifically, the processor 1024 receives the audio data sent by the audio transceiver module 101 to the data signal processing module 102, then performs human ear auditory response simulation processing on the audio data according to the human ear auditory response time, and transmits the processed audio data to the first filter 1021, so that the first filter 1021 extracts the first audio data of the preset frequency band and the second audio data outside the preset frequency band from the audio data processed by the processor 1024. In this embodiment, the processor 1024 performs human ear auditory response simulation processing on the audio data according to the human ear auditory response time, which means compiling the signal of the continuously changing audio data into a signal that changes every human ear auditory response time, thereby achieving human ear auditory response simulation. For example, the human ear auditory response time is preferably set to 20ms, and the human ear auditory response simulation processing compiles the continuously changing audio signal in the audio data received by the processor into an audio signal that changes every 20ms. In this embodiment, the human ear hearing response simulation process is implemented in the same manner as the human ear hearing response simulation algorithm in the prior art, and will not be further elaborated in this embodiment.

[0058] This embodiment pre-processes the audio data by simulating the auditory response of the human ear, which can reduce the time difference between the user's vision and hearing, avoid the problem of visual and auditory disharmony of the user, that is, avoid seeing the flashing lights first and then hearing the music, thereby improving the user's perception accuracy and user experience.

[0059] As an optional implementation, another embodiment of the present application discloses that the data signal processing module 102 further includes a second filter 1025. The second filter 1025 is connected to the audio transceiver module 101 and the gain component 1022, respectively. Specifically, after the audio transceiver module 101 transmits the audio data to the data signal processing module 102, the second filter 1025 in the data signal processing module 102 receives the audio data and extracts audio data having a signal strength greater than a preset signal strength and a dynamic range less than a preset range from the audio data as third audio data. The gain component 1022 then performs gain control on the third audio data. Audio data having a signal strength greater than the preset signal strength and a dynamic range less than the preset range indicates that the audio data has a large amplitude but small rhythm fluctuations. Directly driving the light based on this audio data may result in less noticeable light flickering, thereby affecting user perception and user experience. Therefore, by performing gain control on audio data with a large amplitude but small rhythm fluctuations, the dynamic range is expanded, thereby enhancing the light flickering effect, making the lighting effect more dynamic, and improving user perception accuracy and user experience. Specifically, the preset signal strength and range can be set based on actual conditions, so that the preset signal strength and range can satisfy the requirement that audio data with a signal strength greater than the preset signal strength and a dynamic range less than the preset range has a large amplitude but small rhythm fluctuations, and that the light does not flicker noticeably when driving the light. In this embodiment, the method for determining the signal strength and dynamic range of audio data can be implemented using existing technical means, such as envelope recognition.

[0060] See also Figure 3 As shown, when the data signal processing module 102 includes both the second filter 1025 and the processor 1024, the audio transceiver module 101 is connected to the processor 1024, and the second filter 1025 is connected to the processor 1024 and the gain component 1022, respectively. After the audio transceiver module 101 transmits the audio data to the data signal processing module 102, the processor 1024 receives the audio data, performs human auditory response simulation processing on the audio data according to the human auditory response time, and transmits the processed audio data to the first filter 1021 and the second filter 1025, respectively, so that the first filter 1021 extracts first audio data in a preset frequency band and second audio data outside the preset frequency band from the processed audio data, and the second filter 1025 extracts third audio data having a signal strength greater than a preset signal strength and a dynamic range less than a preset range from the processed audio data.

[0061] As an optional implementation, see Figure 4As shown, another embodiment of the present application discloses that the lighting control device further includes a power module 104. The power module 104 is connected to the external power source 20, the audio transceiver module 101, the data signal processing module 102, and the light driver module 103. Specifically, the power module 104 receives electrical energy from the external power source 20 and transmits the received electrical energy to the audio transceiver module 101, the data signal processing module 102, and the light driver module 103, thereby providing power to the audio transceiver module 101, the data signal processing module 102, and the light driver module 103. In the automotive field, the lighting control device controls the interior lights of the vehicle, so the power module 104 is preferably an on-board power supply.

[0062] As an optional implementation, see Figure 5 As shown, in another embodiment of the present application, the power module 104 includes: a buck converter 1041, a first linear regulator 1042, and a second linear regulator 1043. The buck converter 1041 is connected to the external power supply 20, the data signal processing module 102, and the light driving module 103 respectively; the first linear regulator 1042 is connected to the buck converter 1041 and the data signal processing module 102 respectively; and the second linear regulator 1043 is connected to the external power supply 20 and the audio transceiver module 101 respectively. Specifically, the buck converter 1041 receives the voltage transmitted by the external power supply 20 and converts it into a 3.3V voltage. The buck converter 1041 then transmits the 3.3V voltage to the data signal processing module 102 and the light driving module 103, respectively, to provide power for the data signal processing module 102 and the light driving module 103. The buck converter 1041 also transmits the 3.3V voltage to the first linear regulator 1042. The first linear regulator 1042 converts the 3.3V voltage into a 1V voltage and transmits the 1V voltage to the data signal processing module 102 to provide power for the data signal processing module 102. The second linear regulator 1043 receives the voltage transmitted by the external power supply 20 and converts it into an 8.5V voltage. The second linear regulator 1043 then transmits the 8.5V voltage to the audio transceiver module 101 to provide power for the audio transceiver module 101. The step-down converter 1041 provides the 3.3V voltage for the I / O power supply of the data signal processing module 102, while the first linear regulator 1042 provides the 1V voltage for the core power supply of the data signal processing module 102. The I / O power supply provides power to the input and output interfaces (such as pins and interface circuits) within the data signal processing module 102, while the core power supply provides a stable and reliable power supply to the core processing units within the data signal processing module 102.

[0063] As an optional implementation, see Figure 6As shown, another embodiment of the present application discloses that the light driving module 103 includes: a controller 1031 and a driver chip 1032. The controller 1031 is connected to the envelope identification component 1023 in the data signal processing module 102 via the SPI protocol, and the controller 1031 is connected to the driver chip 1032 via the I2C protocol. The controller 1031 receives the light driving signal transmitted by the envelope identification component 1023 in the data signal processing module 102 via the SPI protocol, and transmits the light driving signal to the driver chip 1032 via the I2C protocol, so that the driver chip 1032 drives the light according to the light driving signal.

[0064] As an optional implementation, another embodiment of the present application discloses that the audio transceiver module 101 includes an A2B transceiver 1011, which is connected to the audio device and the first filter 1021 in the data signal processing module 102. The A2B transceiver 1011 receives initial audio data sent by the audio device, converts the initial audio data into a TDM signal, and sends the TDM signal as audio data to the first filter 1021. The A2B transceiver 1011 can use an A2B bus, which is an unshielded twisted pair cable that can transmit audio data, control data, clock, power, etc. over long distances.

[0065] As an optional implementation, see Figure 7 As shown, in another embodiment of the present application, the data signal processing module 102 further includes a decoder 1026. The decoder 1026 is connected to the first filter 1021 and the A2B transceiver 1011 in the audio transceiver module 101. The decoder 1026 receives the TDM signal sent by the A2B transceiver 1011 in the audio transceiver module 101, decodes the TDM signal, obtains decoded audio data, and sends the decoded audio data to the first filter 1021. In addition, when the data signal processing module 102 also includes a processor 1024, the A2B transceiver 1011 in the audio transceiver module 101 is connected to the decoder 1026, the decoder 1026 is connected to the processor 1024, and the processor 1024 is connected to the first filter 1021, that is, the A2B transceiver 1011 in the audio transceiver module 101 sends the TDM signal to the decoder 1026, the decoder 1026 decodes the TDM signal to obtain decoded audio data, and sends the decoded audio data to the processor 1024, the processor 1024 performs human ear auditory response simulation processing on the decoded audio data according to the human ear auditory response time, and transmits the processed audio data to the first filter 1021.

[0066] As an optional implementation, see Figure 8As shown, CON1 is the interface of the A2B transceiver 1011. The audio device transmits the initial audio data to the interface CON1 through the A2B bus, so that the A2B transceiver 1011 receives the initial audio data and converts the initial audio data into a TDM signal. The A2B transceiver 1011 transmits the TDM signal to the data signal processing module 102 (i.e. Figure 8 After the data signal processing module 102 generates the light driving signal through the contents described in the above embodiment, the controller 1031 (i.e. Figure 8 The MCU in the light driving module 103 obtains the light driving signal through the SPI protocol, and transmits the light driving signal to the driving chip 1032 (i.e. Figure 8 The LED driver module in the LED driver module) enables the driver chip 1032 to transmit the light driving instruction corresponding to the light determination signal through the interface RGB CON. The external power supply BATT+ is connected through the power module 104 (ie Figure 8 The interface CON2 of POWER in supplies power to the power supply module 104.

[0067] In this embodiment, the A2B transceiver 1011 preferably uses the AD2428 chip. The data signal processing module 102 preferably uses an ADSP-21593 DSP module, whose primary function is to process digital signals. It consists of two SHARC+ cores and their peripherals. These peripherals include an audio interface, support data protocols such as I2S and TDM, and are equipped with a hardware FIR accelerator for audio applications requiring high computing power. The ADSP-21593 DSP module not only performs the functions implemented by the data signal processing module 102 in the above embodiment, but also performs equalization, delay, reverberation, and noise reduction on TDM signals. The controller 1031 preferably uses an S32K312 MCU, which includes an ARM Cortex-M7 core microcontroller, 512KB Flash memory, and 128KB SRAM. The S32K312 MCU provides a rich set of peripheral interfaces, such as CAN, Ethernet, USB, UART, SPI, and I2C. The driver chip 1032 preferably uses the AW21036EQPY model, which is an automotive-grade 36-channel RGB LED driver chip. The chip supports 16.8 million color configurations and 16-bit PWM dimming. It has ultra-low EMI characteristics and can help achieve gorgeous in-vehicle atmosphere lighting effects.

[0068] As an optional implementation, see Figure 9As shown, BATT+ is an external power supply 20, BUCK is a buck converter 1041 that can convert the voltage provided by BATT+ to a 3.3V voltage, LDO1 is a first linear regulator 1042 that can convert the 3.3V voltage converted by the buck converter 1041 to a 1V voltage, and LDO2 is a second linear regulator 1043 that can convert the voltage provided by BATT+ to an 8.5V voltage.

[0069] Exemplary Systems

[0070] Accordingly, the embodiment of the present application also provides a vehicle lighting system, see Figure 10 As shown, the vehicle lighting system includes an audio device 30, a light 40, and a light control device 10. The light control device 10 is connected to both the audio device 30 and the light 40. The audio device 30 can be an in-vehicle audio device, and the light 40 can be an interior ambient light. The audio device 30 transmits audio data to the light control device 10, which then generates a light drive signal corresponding to the audio data and drives the light 40 based on the light drive signal.

[0071] From the above introduction, it can be seen that in the vehicle lighting system proposed in the embodiment of the present application, the data signal processing module 102 in the lighting control device 10 includes a gain component 1022 that can adjust the signal strength of the frequency band sensitive to human ear perception in the audio data to a higher signal strength, and adjust the signal strength of the frequency band insensitive to human ear perception to a lower signal strength, thereby improving the lighting effect of the frequency band sensitive to human ear perception and weakening the lighting effect of the frequency band insensitive to human ear perception, avoiding the problem of false flashing that is not obvious to human ear hearing, and thereby improving user perception accuracy and user experience.

[0072] As an optional implementation, see Figure 11 As shown, in another embodiment of the present application, the vehicle lighting system further includes an onboard power supply 20. This onboard power supply 20 is the external power supply described in the above embodiment. The onboard power supply 20 is connected to the lighting control device 10 and can power various modules in the lighting control device 10.

[0073] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. The modules and submodules in the devices and terminals in the various embodiments of the present application can be merged, divided, and deleted according to actual needs.

[0074] In the several embodiments provided in this application, it should be understood that the disclosed terminals, devices, and methods can be implemented in other ways. For example, the terminal embodiments described above are merely illustrative. For example, the division of modules or submodules is merely a logical function division. In actual implementation, there may be other division methods, such as multiple submodules or modules can be combined or integrated into another module, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or module, which can be electrical, mechanical or other forms.

[0075] The modules or submodules described as separate components may or may not be physically separate, and the components of the modules or submodules may or may not be physical modules or submodules, that is, they may be located in one place or distributed across multiple network modules or submodules. Some or all of the modules or submodules may be selected to achieve the purpose of this embodiment according to actual needs.

[0076] In addition, each functional module or submodule in each embodiment of the present application may be integrated into a processing module, or each module or submodule may exist physically separately, or two or more modules or submodules may be integrated into a single module. The above-mentioned integrated modules or submodules may be implemented in the form of hardware or software functional modules or submodules.

[0077] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0078] The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is to be construed in the widest manner consistent with the principles and novel features disclosed herein.

Claims

1. A lighting control device, characterized in that: include: Audio transceiver module, data signal processing module and lighting driver module; The data signal processing module includes: a first filter, a gain component and an envelope identification component; The first filter is connected to the audio transceiver module and is used to extract first audio data in a preset frequency band and second audio data outside the preset frequency band from the audio data sent by the audio transceiver module; wherein the preset frequency band is a frequency band that is sensitive to human ear perception; The gain component is connected to the first filter and the envelope recognition component respectively, and is used to enhance the signal strength of the first audio data and reduce the signal strength of the second audio data, and output the audio data with adjusted signal strength to the envelope recognition component; The envelope recognition component is connected to the light driving module and is used to generate a light driving signal according to the signal strength change of the audio data after the signal strength adjustment, so that the light driving module drives the light according to the light driving signal.

2. The lighting control device according to claim 1, characterized in that: The data signal processing module further includes: a processor; The processor is connected to the first filter and is configured to perform human ear auditory response simulation processing on the audio data sent by the audio transceiver module according to the human ear auditory response time, and transmit the processed audio data to the first filter.

3. The lighting control device according to claim 1, characterized in that: The data signal processing module further includes: a second filter; The second filter is connected to the audio transceiver module and is used to extract third audio data with a signal strength greater than a preset signal strength and a dynamic range smaller than a preset range from the audio data; The gain component is connected to the second filter and is further used to perform gain control on the third audio data.

4. The lighting control device according to claim 1, characterized in that: Also includes: Power module; The power supply module is respectively connected to the external power supply, the audio transceiver module, the data signal processing module and the light driving module.

5. The lighting control device according to claim 4, characterized in that: The power supply module includes: a buck converter, a first linear regulator and a second linear regulator; The step-down converter is respectively connected to the external power supply, the data signal processing module and the light driving module; The first linear regulator is connected to the buck converter and the data signal processing module respectively; The second linear regulator is connected to the external power supply and the audio transceiver module respectively.

6. The lighting control device according to claim 1, characterized in that: The light driving module includes: a controller and a driving chip; The controller is connected to the envelope recognition component via the SPI protocol, and the controller is connected to the driver chip via the I2C protocol.

7. The lighting control device according to claim 1, characterized in that: The audio transceiver module includes: an A2B transceiver; The A2B transceiver is connected to the audio device and the first filter respectively, and is used to convert the initial audio data sent by the audio device into a TDM signal, and send the TDM signal as audio data to the first filter.

8. The lighting control device according to claim 7, characterized in that: The data signal processing module further includes: a decoder; The decoder is connected to the audio transceiver module and the first filter respectively, and is used to decode the TDM signal sent by the audio transceiver module and send the decoded audio data to the first filter.

9. A vehicle lighting system, characterized in that: include: An audio device, a lamp, and a lighting control device according to any one of claims 1 to 8; The lighting control device is connected to the audio device and the lamp respectively.

10. The vehicle lighting system according to claim 9, characterized in that: Also includes: On-board power supply; The vehicle-mounted power supply is connected to the lighting control device.

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