CN111559320A - Method and system for realizing active sounding of vehicle based on vehicle-mounted intelligent terminal - Google Patents
Method and system for realizing active sounding of vehicle based on vehicle-mounted intelligent terminal Download PDFInfo
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- CN111559320A CN111559320A CN202010340966.5A CN202010340966A CN111559320A CN 111559320 A CN111559320 A CN 111559320A CN 202010340966 A CN202010340966 A CN 202010340966A CN 111559320 A CN111559320 A CN 111559320A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0217—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0019—Side or rear panels
- B60R2011/0021—Doors
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- Mechanical Engineering (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention relates to the technical field of electric vehicles, in particular to a method and a system for realizing vehicle active sound production based on a vehicle-mounted intelligent terminal, wherein the method comprises the steps of pre-storing a plurality of sections of audio files in a vehicle, wherein each section of audio file is associated with an accelerator pedal opening range and a motor rotating speed range; and receiving an accelerator pedal opening signal and a motor rotating speed signal, searching an audio file related to the accelerator pedal opening signal according to the range to which the accelerator pedal opening belongs and the range to which the motor rotating speed belongs, and outputting the audio file. The existing hardware configuration of the vehicle-mounted intelligent terminal is utilized, and the implantation and calling of the calibration audio file are matched, so that the function of vehicle active sound production is realized under the condition of not increasing the hardware cost.
Description
Technical Field
The invention relates to the technical field of electric vehicles, in particular to a method and a system for realizing active sounding of a vehicle based on a vehicle-mounted intelligent terminal.
Background
Under the background of energy conservation, emission reduction and environmental protection, the state greatly promotes the development of the field of electric vehicles, and the development prospect of the electric vehicles is wide along with the improvement of charging infrastructures. Because the motor can not produce the peculiar rumbling of the fuel engine when working, the electric motor car has no sound when starting and going, greatly reduced the enjoyment of driving.
There are currently many manufacturers of active sound controllers on the market, and many entire car manufacturers have been equipped with active sound controller devices. However, the addition of an active sounding controller on the whole vehicle not only increases the cost of the whole vehicle, but also adds nodes on the network of the whole vehicle, increases the network load and affects the network transmission speed.
Disclosure of Invention
The invention aims to provide a method and a system for realizing vehicle active sound production based on a vehicle-mounted intelligent terminal without increasing hardware cost and influencing network transmission speed aiming at the defects of the prior art.
The invention discloses a method for realizing vehicle active sounding based on a vehicle-mounted intelligent terminal, which adopts the technical scheme that:
pre-storing a plurality of sections of audio files in the vehicle, wherein each section of audio file is associated with an accelerator pedal opening range and a motor rotating speed range;
and receiving an accelerator pedal opening signal and a motor rotating speed signal, searching an audio file related to the accelerator pedal opening signal according to the range to which the accelerator pedal opening belongs and the range to which the motor rotating speed belongs, and outputting the audio file.
Preferably, the plurality of sections of audio files are generated by simulating standard audio files obtained by active sound production of the real vehicle.
Preferably, the method for associating the audio file with the range of the opening degree of the accelerator pedal and the range of the rotating speed of the motor is as follows:
an audio file two-dimensional comparison table is formulated by taking the opening range of an accelerator pedal and the rotating speed range of a motor as row and column attributes;
acquiring real vehicle standard audio files under the opening range of each accelerator pedal and the rotating speed range of the motor in the audio file two-dimensional comparison table in a real vehicle active sounding calibration mode;
simulating to generate a plurality of sections of audio files according to the plurality of sections of real vehicle standard audio files, and completing the calibration of a two-dimensional comparison table of the audio files;
and according to the calibrated two-dimensional comparison table of the audio files, association and storage of the multiple sections of audio files are completed.
Preferably, when the audio files are associated, the multiple sections of standard audio files are numbered or named, and the audio files are associated with the range of the opening degree of the accelerator pedal and the range of the rotating speed of the motor through the numbers or the names.
Preferably, the audio file output channel is completely independent of the media sound output channel of the vehicle.
The invention discloses a system for realizing active sounding of a vehicle based on a vehicle-mounted intelligent terminal, which adopts the technical scheme that: comprises that
The CAN transceiver is used for receiving an opening signal of an accelerator pedal and a rotating speed signal of a motor and transmitting the signals to the MCU module;
the MCU module is used for transmitting the received accelerator pedal opening degree signal and the motor rotating speed signal to the APU module;
the system comprises an APU module, a data processing module and a data processing module, wherein the APU module is used for storing a plurality of sections of audio files, and each section of audio file is associated with an accelerator pedal opening range and a motor rotating speed range; receiving an accelerator pedal opening signal and a motor rotating speed signal, searching an audio file related to the accelerator pedal opening signal according to the range of the accelerator pedal opening and the range of the motor rotating speed, and outputting the audio file to the DSP module;
and the DSP module is used for outputting the audio files through the corresponding audio file output channels.
Preferably, the device further comprises an AMP module, configured to amplify the audio file input by the DSP module and output the amplified audio file to a speaker.
The invention has the beneficial effects that: the existing hardware configuration of the vehicle-mounted intelligent terminal is utilized, and the implantation and calling of the calibration audio file are matched, so that the function of vehicle active sound production is realized under the condition of not increasing the hardware cost. The method adopts real-vehicle active sounding calibration, associates the complete roaring sound in the starting process with the accelerator pedal and the engine speed through a plurality of sections of audio files, can call corresponding audio files according to the opening degree of the accelerator pedal, and enables the audio files to be correspondingly changed when the opening degree of the accelerator pedal is increased or decreased, so that the output sound effect is vivid and consistent.
Drawings
FIG. 1 is a schematic flow chart of a method for realizing active sounding of a vehicle based on a vehicle-mounted intelligent terminal according to the present invention;
fig. 2 is a schematic diagram of system connection for realizing active sound production of a vehicle based on a vehicle-mounted intelligent terminal.
Detailed Description
The invention will be further described in detail with reference to the following drawings and specific examples, which are not intended to limit the invention, but are for clear understanding.
As shown in fig. 1, a method for realizing active sound production of a vehicle based on a vehicle-mounted intelligent terminal comprises the following steps:
pre-storing a plurality of sections of audio files in the vehicle, wherein each section of audio file is associated with an accelerator pedal opening range and a motor rotating speed range;
and receiving an accelerator pedal opening signal and a motor rotating speed signal, searching an audio file related to the accelerator pedal opening signal according to the range to which the accelerator pedal opening belongs and the range to which the motor rotating speed belongs, and outputting the audio file.
The audio files are generated by simulating standard audio files obtained by active sound production of the real vehicle.
The method for associating the audio file with the opening range of the accelerator pedal and the rotating speed range of the motor comprises the following steps:
an audio file two-dimensional comparison table is formulated by taking the opening range of an accelerator pedal and the rotating speed range of a motor as row and column attributes;
acquiring real vehicle standard audio files under the opening range of each accelerator pedal and the rotating speed range of the motor in the audio file two-dimensional comparison table in a real vehicle active sounding calibration mode;
simulating to generate a plurality of sections of audio files according to the plurality of sections of real vehicle standard audio files, and completing the calibration of a two-dimensional comparison table of the audio files;
and according to the calibrated two-dimensional comparison table of the audio files, association and storage of the multiple sections of audio files are completed.
And when the audio files are associated, numbering or naming the multiple sections of standard audio files, and associating the standard audio files with the range of the opening degree of the accelerator pedal and the range of the rotating speed of the motor through the numbering or naming. The APU creates a player first and then calls a data source (DataSource) function to set the audio file path. All audio files are stored under the path. And when the opening signal of the accelerator pedal and the rotating speed signal of the motor are received, judging the number/name of the audio file related to the opening signal of the accelerator pedal according to the range of the opening of the accelerator pedal and the rotating speed of the motor, and calling the audio file corresponding to the number/name from the storage path.
When the opening of the accelerator pedal changes, the range of the accelerator pedal changes, so that the associated audio file changes to adapt to the starting state and realize the continuous output of sound.
As shown in fig. 2, a system for realizing active sound production of a vehicle based on a vehicle-mounted intelligent terminal is disclosed, which comprises:
the CAN transceiver receives and transmits signals on a CAN network and converts differential signals on the CAN network into logic level signals; in the self function of the vehicle-mounted intelligent terminal, the CAN transceiver receives an air conditioner signal, an alarm signal and the like on a CAN network, and in the active sounding function of the vehicle, the CAN transceiver receives an accelerator pedal signal and a motor rotating speed signal on the CAN network;
the MCU (Microcontroller Unit micro control Unit) converts the logic level signal converted by the CAN transceiver into a signal defined by an Android standard interface again according to a protocol and sends the signal to the APU through a serial port protocol; in order to realize the function of vehicle active sound production, the Andriod interface needs to be additionally provided with definitions of an accelerator pedal signal and a motor rotating speed signal;
and the APU module runs a native android operating system in an APU (Application processing units) in the functions of the vehicle-mounted intelligent terminal and processes the operation and storage of each Application of the system. In order to realize the active sounding function of the vehicle, the system is also used for storing a plurality of sections of audio files, and each section of audio file is associated with an accelerator pedal opening range and a motor rotating speed range; receiving an accelerator pedal opening signal and a motor rotating speed signal, searching an audio file related to the accelerator pedal opening signal according to the range of the accelerator pedal opening and the range of the motor rotating speed, and outputting the audio file to the DSP module;
and the DSP module is used for distributing the voice channels and configuring the opening and closing states of the voice channels, and outputting the processed voice to the AMP. The sound actively sounded by the vehicle is only related to the running state of the vehicle and is not influenced by the sounds of multimedia, telephone, silence, voice broadcast and the like, so the sound channel actively sounded by the vehicle is distinguished from the media sound channel, two independent sound channels are distributed to the sound actively sounded by the vehicle in the DSP, one sound channel is used for audio transmission of the vehicle actively sounded by the vehicle, one sound channel is used for audio transmission of the media sound, and the two channels can be respectively and independently configured to be in an opening state and a closing state so as to control the playing and stopping of the sound. The vehicle active sounding sound channel is output to the left and right loudspeaker channels of the front door of the AMP, and the media sound channel is output to the speaker channels of the four doors of the whole vehicle of the AMP;
and the AMP (amplifier power amplifier) module is used for amplifying the audio file input by the DSP module and outputting the amplified audio file to a loudspeaker.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
Claims (7)
1. A method for realizing vehicle active sound production based on a vehicle-mounted intelligent terminal is characterized in that,
pre-storing a plurality of sections of audio files in the vehicle, wherein each section of audio file is associated with an accelerator pedal opening range and a motor rotating speed range;
and receiving an accelerator pedal opening signal and a motor rotating speed signal, searching an audio file related to the accelerator pedal opening signal according to the range to which the accelerator pedal opening belongs and the range to which the motor rotating speed belongs, and outputting the audio file.
2. The method for realizing the active sound production of the automobile based on the vehicle-mounted intelligent terminal according to claim 1, wherein the plurality of segments of the audio files are audio files generated after simulating standard audio files acquired by the active sound production of the real automobile.
3. The method for realizing the active sound production of the automobile based on the vehicle-mounted intelligent terminal according to claim 1, wherein the association method of the audio file with the opening range of the accelerator pedal and the rotating speed range of the motor is as follows:
an audio file two-dimensional comparison table is formulated by taking the opening range of an accelerator pedal and the rotating speed range of a motor as row and column attributes;
acquiring real vehicle standard audio files under the opening range of each accelerator pedal and the rotating speed range of the motor in the audio file two-dimensional comparison table in a real vehicle active sounding calibration mode;
simulating to generate a plurality of sections of audio files according to the plurality of sections of real vehicle standard audio files, and completing the calibration of a two-dimensional comparison table of the audio files;
and according to the calibrated two-dimensional comparison table of the audio files, association and storage of the multiple sections of audio files are completed.
4. The method for realizing the active sound production of the automobile based on the vehicle-mounted intelligent terminal is characterized in that when the audio files are associated, a plurality of sections of the standard audio files are numbered or named, and the audio files are associated with the opening range of an accelerator pedal and the rotating speed range of a motor through the numbering or naming.
5. The method for realizing the active sounding of the automobile based on the vehicle-mounted intelligent terminal according to claim 1, wherein the audio file output channel is completely independent from a media sound output channel of the automobile.
6. A system for realizing active sound production of an automobile based on a vehicle-mounted intelligent terminal is characterized by comprising
The CAN transceiver is used for receiving an opening signal of an accelerator pedal and a rotating speed signal of a motor and transmitting the signals to the MCU module;
the MCU module is used for transmitting the received accelerator pedal opening degree signal and the motor rotating speed signal to the APU module;
the system comprises an APU module, a data processing module and a data processing module, wherein the APU module is used for storing a plurality of sections of audio files, and each section of audio file is associated with an accelerator pedal opening range and a motor rotating speed range; receiving an accelerator pedal opening signal and a motor rotating speed signal, searching an audio file related to the accelerator pedal opening signal according to the range of the accelerator pedal opening and the range of the motor rotating speed, and outputting the audio file to the DSP module;
and the DSP module is used for outputting the audio files through the corresponding audio file output channels.
7. The system for realizing active sound production of the automobile based on the vehicle-mounted intelligent terminal as claimed in claim 6, further comprising an AMP module for amplifying the audio file input by the DSP module and outputting the amplified audio file to a speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010340966.5A CN111559320A (en) | 2020-04-26 | 2020-04-26 | Method and system for realizing active sounding of vehicle based on vehicle-mounted intelligent terminal |
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| CN202010340966.5A CN111559320A (en) | 2020-04-26 | 2020-04-26 | Method and system for realizing active sounding of vehicle based on vehicle-mounted intelligent terminal |
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