CN209488863U - A kind of vehicle-mounted atmosphere lamp system of real-time music regular movements control - Google Patents
A kind of vehicle-mounted atmosphere lamp system of real-time music regular movements control Download PDFInfo
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- CN209488863U CN209488863U CN201822008672.3U CN201822008672U CN209488863U CN 209488863 U CN209488863 U CN 209488863U CN 201822008672 U CN201822008672 U CN 201822008672U CN 209488863 U CN209488863 U CN 209488863U
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Abstract
The utility model provides a kind of vehicle-mounted atmosphere lamp system of real-time music regular movements control, comprising: system host and several sub-controllers；System host includes ADC signal acquisition module, CAN signal receiving module, MCU master controller, LIN signal output module；ADC signal acquisition module acquires music signal in real time, and carries out digitized quantization encoding to music signal；Quantization encoding is defined into CAN protocol by CAN signal receiving module, is LIN control instruction through vehicle-mounted CAN/LIN systematic sampling；MCU master controller receives LIN control instruction, is handled and exports control signal；LIN signal output module sends control signals to sub-controller；Sub-controller is atmosphere lamp control module, and each sub-controller is equipped with LIN signal receiving interface.The utility model is connect by CAN bus with body of a motor car system, and the music regular movements that the audio signal of vehicle-carrying DVD is directly used in atmosphere lamp is controlled, and the color of atmosphere lamp and brightness set off interior atmosphere by contrast, enhance visual enjoyment with the variation of music regular movements real-time synchronization.
Description
Technical field
The utility model relates to a kind of vehicle-mounted atmosphere lamp systems of real-time music regular movements control.
Background technique
With popularizing for family car, people propose higher and higher demand, vehicle-mounted atmosphere to the experience in driving procedure
Enclose the car room lighting system that lamp is a kind of creation and decoration indoor light scenes function.Existing automobile is to vehicle-mounted atmosphere lamp
Most of control is vehicle Body Control, and control method and control mode are single, increases or decreases atmosphere lamp sum and needs to institute
There is the vehicle-mounted control agreement of node to modify, and same system function be transplanted to after other a vehicle need to agreement into
Row global revision, to adapt to the own upper-layer protocol of new model.
And the automobile nowadays popularized, car can all install vehicle-carrying DVD, as the audio-visual joy provided to interior passenger
Happy multimedia play system.Vehicle-mounted atmosphere lamp will achieve the effect that improve interior atmosphere, the general face by changing atmosphere lamp
Color and bright intensity are realized, should also have certain regular movements effect.Therefore, how to provide a kind of portability it is good, can be real-time
The vehicle-mounted atmosphere lamp system with regular movements control function of synchronous vehicle-carrying DVD music signal becomes industry and needs what is solved to ask
Topic.
Summary of the invention
In view of the shortcomings of the prior art, the purpose of this utility model is to make vehicle-mounted atmosphere lamp reach preferably amusement audiovisual
Effect contacts vehicle-carrying DVD music signal and the foundation of vehicle-mounted atmosphere lamp, and vehicle-mounted atmosphere lamp is exported according to DVD audio signal and realized
Music regular movements changes light intensity and coloration that atmosphere lamp issues, sets off interior atmosphere by contrast, enhances visual enjoyment, improve the driving of automobile
Experience, improves the class of vehicle；And propose a kind of vehicle-mounted atmosphere lamp system of real-time music regular movements control.
To achieve the goals above, the utility model provides a kind of vehicle-mounted atmosphere lamp system of real-time music regular movements control
System comprising: system host and several sub-controllers；
System host includes ADC signal acquisition module, CAN signal receiving module, MCU master controller, LIN signal output mould
Block；
ADC signal acquisition module carries out digitized quantization encoding for acquiring music signal in real time, and to music signal；
CAN signal receiving module is configured as quantization encoding being defined into CAN protocol, is LIN control through vehicle-mounted CAN/LIN systematic sampling
System instruction；MCU master controller receives LIN control instruction, is handled and exports control signal；LIN signal output module is matched
It is set to and sends control signals to sub-controller；
Sub-controller is atmosphere lamp control module, and each sub-controller is equipped with LIN signal receiving interface.
In the utility model, it is connected by CAN bus with automobile vehicle body controller, the audio signal of vehicle-carrying DVD is straight
The music regular movements control for atmosphere lamp is connect, so that the color of atmosphere lamp and brightness are dried with the variation of music regular movements real-time synchronization
Atmosphere in motorcycle enhances visual enjoyment, improves the driving experience of automobile, improve the class of vehicle.
In the utility model, ADC signal acquisition module acquires music signal in real time, carries out feature extraction to music, extracts
To available musical features signal such as amplitude and frequency signal, music signal is rectified here, music amplitude is special
Reference number is converted to the superposition of multiple amplitudes deamplificationWherein τ is time constant, and n represents each sound
The position of generation, i.e. cadence information, AnFor the amplitude information of current tempo, in a cadence period Δ n, signal occurrence index
Decaying, then digitized quantization encoding is carried out to the musical features signal that redefines, according to the reference level of MCU and ADC
Precision separates the corresponding signal value of each digital quantity；CAN signal receiving module is configured as quantization encoding being defined into
In CAN protocol, extended format data frame is sent, i.e., 31 arbitration sections are readily integrated into vehicle agreement, avoid vehicle agreement
Digit is inadequate, to be suitable for different automobile types.
In the utility model, CAN bus receiving port is set in system host, is connected with upper layer CAN bus, will receive
The audio signal arrived carries out digitized quantization encoding, then quantization encoding is defined into CAN protocol, through vehicle-mounted CAN/LIN system
System is sampled to LIN control instruction；So that the atmosphere lamp that the output of LIN signal can control in sub-controller is made accordingly
Regular movements control is realized in variation.The utility model connect with bodywork system in such a way that CAN bus is transmitted, further increases
The portability of atmosphere lamp system.Multiple sub-controllers in the utility model control atmosphere lamp respectively, so that each
The control of atmosphere lamp can control respectively according to LIN control instruction, rather than existing single control mode, it is achieved that
The control of each atmosphere lamp difference regular movements variation.
According to another specific embodiment of the utility model, ADC signal acquisition module is configured as converting music signal
For the linear analogue amount of DC waveform output, the maximum value of linear analogue amount is 5V, minimum value 0V.
According to another specific embodiment of the utility model, music signal is the audio signal of vehicle-carrying DVD.
According to another specific embodiment of the utility model, CAN signal receiving module further includes for receiving automobile control
The command reception module for the control instruction that system issues, control instruction are the finger for controlling the signal reception operation of MCU master controller
It enables.
According to another specific embodiment of the utility model, system host further comprises keystroke interface, and keystroke interface is
The key being electrically connected with MCU master controller.
According to another specific embodiment of the utility model, system host further includes volume module, and volume module includes
LM358 dual operational amplifier and rectification circuit.
According to another specific embodiment of the utility model, the control signal of MCU master controller output is PWM control letter
Number.
According to another specific embodiment of the utility model, sub-controller includes LIN signal receiving module and RGB_LED
Driving circuit；RGB-LED driving circuit is PWM mode driving circuit.
According to another specific embodiment of the utility model, RGB_LED driving circuit is that common anode mode drives, RGB_LED
Anode connect 5V power supply, RGB_LED cathode connection MCU master controller PWM output.
According to another specific embodiment of the utility model, RGB-LED driving circuit includes color control and brightness gradual change
Control.
Compared with prior art, the utility model have it is following the utility model has the advantages that
The utility model is made of system host and multiple sub-controllers, and each sub-controller passes through LIN interface and is
Host of uniting carries out receiving and transmitting signal, and is equipped with various interfaces, so that the control signal of atmosphere lamp does not transmit on the system bus,
For sensing equipment signal to the customized control algolithm of atmosphere lamp in local realization, the control for effectively improving atmosphere lamp control system is more
Sample, real-time, scalability, flexibility and portability.
Music signal in the utility model is directly the audio signal of vehicle-carrying DVD, and system host and body of a motor car
Control system is transmitted by CAN bus connection and signal, further increases the portability of atmosphere lamp system.
The utility model switchs to tributary amplitude attenuation variable signal by configuring volume module, by music signal, passes through ADC
It is transmitted to MCU main controller controls PWM output after signal acquisition module sampling, realizes color gradient effect.
In the utility model, each sub-controller is mutually indepedent, and the increase and decrease of equipment does not influence other nodes.
The utility model is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the overall construction drawing of the vehicle-mounted atmosphere lamp system of the real-time music regular movements control of embodiment 1；
Fig. 2 is the system host configuration diagram of the vehicle-mounted atmosphere lamp system of the real-time music regular movements control of embodiment 1；
Fig. 3 is the electricity of the musical features signal extraction of the vehicle-mounted atmosphere lamp system of the real-time music regular movements control of embodiment 1
Road connection figure；
Fig. 4 is the output signal wave of the volume module of the vehicle-mounted atmosphere lamp system of the real-time music regular movements control of embodiment 1
Shape figure；
Fig. 5 is the software control figure of the vehicle-mounted atmosphere lamp system of the real-time music regular movements control of embodiment 1.
Specific embodiment
Embodiment 1
Present embodiments provide a kind of vehicle-mounted atmosphere lamp system of real-time music regular movements control, as shown in Figs 1-4, packet
It includes: system host and several sub-controllers.
Referring to Fig. 1 and Fig. 2, system host include ADC signal acquisition module, CAN signal receiving module, MCU master controller,
LIN signal output module.ADC signal acquisition module carries out feature extraction for acquiring music signal in real time, and to music, extracts
To available musical features signal such as amplitude and frequency signal, music signal is rectified, music amplitude Characteristics are believed
Number be converted to the superposition of multiple amplitudes deamplificationWherein τ is time constant, and n represents each sound and generates
Position, i.e. cadence information, AnFor the amplitude information of current tempo, in a cadence period Δ n, signal occurrence index declines
Subtract, then digitized quantization encoding is carried out to the musical features signal redefined, according to the essence of the reference level of MCU and ADC
Degree, separates the corresponding signal value of each digital quantity；CAN signal receiving module is configured as quantization encoding being defined into CAN
In agreement, extended format data frame is sent, i.e., 31 arbitration sections are readily integrated into vehicle agreement, through vehicle-mounted CAN/LIN system
It is sampled to LIN control instruction；MCU master controller receives LIN control instruction, is handled and exports control signal；LIN signal is defeated
Module is configured as sending control signals to sub-controller out.ADC signal acquisition module is configured as converting music signal
For the linear analogue amount of DC waveform output, the maximum value of linear analogue amount is 5V, minimum value 0V.Music signal is vehicle-mounted
The audio signal of DVD, directly the music regular movements using the audio signal of vehicle-carrying DVD for atmosphere lamp system control.CAN signal connects
Receiving module further includes the command reception module for receiving the control instruction of automotive control system sending, and control instruction is control
The signal of MCU master controller receives the instruction of operation.The atmosphere lamp that system host receives automotive control system sending opens letter
After number, MCU master controller carries out the acquisition and processing of music signal, so that atmosphere lamp system enters working condition.System host
It further comprise keystroke interface, keystroke interface is the key being electrically connected with MCU master controller, and key is in system host program
The system-level control that can be configured to the functions such as atmosphere lamp system, can also configure the keystroke interface with other function.
Referring to Fig. 3, it is the hardware circuit diagram of system musical features signal extraction, reserves interface PIN1 and PIN2, the end PIN1
Mouth connects music signal analog input, and the port PIN2 is music rhythm amplitude attenuation signal extraction output, and the AO mouth in PIN2 connects
Enter the end ADC of master controller MCU, carries out quantization encoding.System host further includes volume module, and volume module includes LM358 bis-
Operational amplifier and rectification circuit.Audio signal is switched to the linear analogue amount of DC waveform output by volume module, makes output
Waveform maximum value is 5V, and minimum value 0V, when so that peak value occurring in audio signal, voltage is raised to 5V.If without sound, electricity
Press slow-decay at any time.
Referring to fig. 4, from vehicle-carrying DVD audio signal input waveform, if directly changed with audio signal control light color,
Then color change is frequent, and without preferable rhythmic.After adding volume module, volume analog signal output waveform is as schemed
Shown in 4, wave crest can be clearly visible waveform with music rhythm, regular movements variation close to 0V close to 3.3V, trough.MCU master controller is defeated
Control signal out is pwm control signal.Music signal is switched to tributary by receiving music signal by vehicle-mounted atmosphere lamp system
Amplitude attenuation variable signal is transmitted to the control PWM output of MCU controller after sampling by ADC.
Referring to Fig. 5, the present embodiment provides a kind of typical scenario, user can also custom software control according to their own needs
Scheme processed.The voltage for acquiring volume module first makes the voltage value of 0-5V by 12 ADC all the way in the MCU of master controller
Switch to 0- digital quantity adc_value.In a manner of interruption, every 10ms cycles through a LIN signal, i.e. MCU master controller is adopted
The voltage of the volume module collected, according to the digital quantity after AD conversion, changing PWM duty cycle in proportion, (R component duty ratio increases
Add, RB component duty ratio reduces).Cut-off and the turn-on time of LED light RGB component are controlled by adjusting the duty ratio of pulse,
As shown in Fig. 2, being mixed to get by music rhythm fade effect.
Sub-controller is atmosphere lamp control module, and each sub-controller is equipped with LIN signal receiving interface.Sub-controller packet
Include LIN signal receiving module and RGB_LED driving circuit；RGB-LED driving circuit is PWM mode driving circuit.RGB_LED
Driving circuit is that common anode mode drives, and the anode of RGB_LED connects 5V power supply, and the cathode of RGB_LED connects MCU master controller
The output of PWM.RGB-LED driving circuit includes color control and brightness ramp control.
The present embodiment is connected with automobile vehicle body controller by CAN bus, the audio signal of vehicle-carrying DVD is directly used
It is controlled in the music regular movements of atmosphere lamp, so that the color of atmosphere lamp and brightness are with the variation of music regular movements real-time synchronization, system master
CAN bus receiving port is set in machine, is connected with upper layer CAN bus, the audio signal received is subjected to digitized amount
Change coding, then quantization encoding is defined into CAN protocol, is LIN control instruction through vehicle-mounted CAN/LIN systematic sampling；To make
The output for obtaining LIN signal can control the atmosphere lamp in sub-controller and make corresponding variation, realize regular movements control.This implementation
Example connect with bodywork system in such a way that CAN bus is transmitted, further increases the portability of atmosphere lamp system.This reality
The multiple sub-controllers applied in example control atmosphere lamp respectively, and the control of each atmosphere lamp is controlled according to LIN
Instruction controls respectively, rather than existing single control mode, it is achieved that the control of each atmosphere lamp difference regular movements variation
System.
The each sub-controller of the present embodiment passes through LIN interface and system host carries out receiving and transmitting signal, and is equipped with each
Kind interface, so that the control signal of atmosphere lamp does not transmit on the system bus, customized control of the sensing equipment signal to atmosphere lamp
Algorithm processed in local realization, effectively improve the control diversity of atmosphere lamp control system, real-time, scalability, flexibility and
It is portable.Each sub-controller is mutually indepedent, and the increase and decrease of equipment does not influence other nodes.
Music signal in the present embodiment is directly the audio signal of vehicle-carrying DVD, and system host and body of a motor car control
System processed is transmitted by CAN bus connection and signal, further increases the portability of atmosphere lamp system.
The present embodiment switchs to tributary amplitude attenuation variable signal by configuring volume module, by music signal, is believed by ADC
It is transmitted to MCU main controller controls PWM output after the sampling of number acquisition module, realizes color gradient effect.
Although the utility model is disclosed above in the preferred embodiment, it is not intended to limit the utility model the model of implementation
It encloses.Any those skilled in the art improve in the invention scope for not departing from the utility model when can make a little,
I.e. all same improvement done according to the utility model, should be the scope of the utility model and are covered.
Claims (10)
1. a kind of vehicle-mounted atmosphere lamp system of real-time music regular movements control, which is characterized in that the vehicle-mounted atmosphere lamp system includes:
System host and several sub-controllers；
The system host includes ADC signal acquisition module, CAN signal receiving module, MCU master controller, LIN signal output mould
Block；
The ADC signal acquisition module carries out digitized quantization for acquiring music signal in real time, and to the music signal
Coding；The CAN signal receiving module is configured as the quantization encoding being defined into CAN protocol, through vehicle-mounted CAN/LIN system
System is sampled to LIN control instruction；The MCU master controller receives the LIN control instruction, is handled and exports control letter
Number；The LIN signal output module is configured as the control signal being sent to the sub-controller；
The sub-controller is atmosphere lamp control module, and each sub-controller is equipped with LIN signal receiving interface.
2. vehicle-mounted atmosphere lamp system as described in claim 1, which is characterized in that the ADC signal acquisition module is configured as
Convert music signal to the linear analogue amount of DC waveform output, the maximum value of the linear analogue amount is 5V, and minimum value is
0V。
3. vehicle-mounted atmosphere lamp system as described in claim 1, which is characterized in that the music signal is the audio of vehicle-carrying DVD
Signal.
4. vehicle-mounted atmosphere lamp system as described in claim 1, which is characterized in that the CAN signal receiving module further includes using
In the command reception module for receiving the control instruction that automotive control system issues, the control instruction is to control the MCU master control
The signal of device processed receives the instruction of operation.
5. vehicle-mounted atmosphere lamp system as described in claim 1, which is characterized in that the system host further comprises by bonded
Mouthful, the keystroke interface is the key being electrically connected with the MCU master controller.
6. vehicle-mounted atmosphere lamp system as described in claim 1, which is characterized in that the system host further includes volume module,
The volume module includes LM358 dual operational amplifier and rectification circuit.
7. vehicle-mounted atmosphere lamp system as described in claim 1, which is characterized in that the control letter of the MCU master controller output
Number be pwm control signal.
8. vehicle-mounted atmosphere lamp system as described in claim 1, which is characterized in that the sub-controller includes that LIN signal receives
Module and RGB_LED driving circuit；The RGB_LED driving circuit is PWM mode driving circuit.
9. vehicle-mounted atmosphere lamp system as claimed in claim 8, which is characterized in that the RGB_LED driving circuit is common anode side
The anode of formula driving, RGB_LED connects 5V power supply, and the cathode of RGB_LED connects the output of the MCU master controller PWM.
10. vehicle-mounted atmosphere lamp system as claimed in claim 8, which is characterized in that the RGB_LED driving circuit includes color
Control and brightness ramp control.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008672.3U CN209488863U (en) | 2018-12-03 | 2018-12-03 | A kind of vehicle-mounted atmosphere lamp system of real-time music regular movements control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008672.3U CN209488863U (en) | 2018-12-03 | 2018-12-03 | A kind of vehicle-mounted atmosphere lamp system of real-time music regular movements control |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109922560A (en) * | 2018-12-03 | 2019-06-21 | 广州新晨汽车零部件有限公司 | A kind of vehicle-mounted atmosphere lamp system of real-time music regular movements control |
| CN111319556A (en) * | 2020-02-20 | 2020-06-23 | 宁波吉利汽车研究开发有限公司 | Atmosphere lamp control system and method and vehicle |
| CN111491428A (en) * | 2020-04-22 | 2020-08-04 | 中山市领越电子科技有限公司 | Automatic control unit for atmosphere lamp in vehicle |
| CN112319361A (en) * | 2020-09-23 | 2021-02-05 | 芜湖莫森泰克汽车科技股份有限公司 | Star sky top LED controller based on field effect transistor switching characteristic |
-
2018
- 2018-12-03 CN CN201822008672.3U patent/CN209488863U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109922560A (en) * | 2018-12-03 | 2019-06-21 | 广州新晨汽车零部件有限公司 | A kind of vehicle-mounted atmosphere lamp system of real-time music regular movements control |
| CN111319556A (en) * | 2020-02-20 | 2020-06-23 | 宁波吉利汽车研究开发有限公司 | Atmosphere lamp control system and method and vehicle |
| CN111491428A (en) * | 2020-04-22 | 2020-08-04 | 中山市领越电子科技有限公司 | Automatic control unit for atmosphere lamp in vehicle |
| CN112319361A (en) * | 2020-09-23 | 2021-02-05 | 芜湖莫森泰克汽车科技股份有限公司 | Star sky top LED controller based on field effect transistor switching characteristic |
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Address after: 511400 Room 101, No. 230, Huangge Section, Shinan Road, Huangge Town, Nansha District, Guangzhou, Guangdong Patentee after: Guangdong Xinchen Automobile Technology Co.,Ltd. Address before: Shop 102, No. 17, Zhujiang East 2nd Road, Nansha District, Guangzhou, Guangdong 511462 Patentee before: GUANGZHOU DEMUP AUTOMOBILE PARTS Co.,Ltd. |
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