CN115641881A - Audio playing system capable of rapidly switching playing contents - Google Patents
Audio playing system capable of rapidly switching playing contents Download PDFInfo
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- CN115641881A CN115641881A CN202210265024.4A CN202210265024A CN115641881A CN 115641881 A CN115641881 A CN 115641881A CN 202210265024 A CN202210265024 A CN 202210265024A CN 115641881 A CN115641881 A CN 115641881A
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Abstract
With the improvement of living standard of people, automobiles become necessities of life of people, an entertainment system in the automobiles is an important product for improving the driving experience of people, and at present, a vehicle-mounted entertainment system has a plurality of functions, one of which is to play audio and video contents; the playing equipment comprises a CD player, a vehicle-mounted MP3 player, a vehicle-mounted electronic entertainment system and the like, when the CD player is used for playing music, favorite music can be selected through selecting a CD disc and played directly, other electronic playing systems read music electronic files in a memory or read music files from a smart phone through Bluetooth to play, if favorite music is required to be played, if the player is a player with a large screen, the music required to be played is selected to be played through operating a file system, the operation is troublesome and time-consuming, and if a driving device is replaced, the risk of accidents is greatly increased; if the screen carried by the player is small, the operation is more responsible, and the risk is higher; the audio playing system capable of quickly switching playing contents writes the audio playing list into the radio frequency card, when a song list is required to be changed, the corresponding radio frequency card is selected just like an optical disc is selected and placed at a reading position of the radio frequency card, and the playing contents can be quickly and safely changed.
Description
Technical Field
The invention relates to a content switching method of an electronic entertainment system, in particular to an audio playing system capable of quickly switching playing contents.
Background
The mode of adjusting the playing content of the electronic entertainment product by the key or the touch screen is inconvenient in some scenes, and even has a safety risk, for example, when a car is driven, the mode of adjusting the playing content of the electronic entertainment product by the key or the touch screen can reduce the attention concentration degree of a driver on road conditions, and has a safety hazard. The method can rapidly complete the switching of the playing contents through the radio frequency card. An audio playing system capable of rapidly switching playing contents, comprising: the device comprises an audio playing module 1, a radio frequency card reading module 2, a radio frequency card 3 and an audio and video content memory 4.
The audio playing module 1 is used for decoding a played audio and video file, and mainly comprises an audio decoder circuit and a playing control system, the audio playing module is used for decoding digital audio content through the audio decoder circuit and then playing the digital audio content, and the audio decoder circuit supports decoding of common audio coding formats such as MP3, WMA, WAV, ACC, FLAC, APE, MIDI and the like; the playing control system controls the playing functions of the played content, volume, playing sequence and the like.
The radio frequency card reading module 2 reads the audio playing content code number data stored in the radio frequency card, after the radio frequency card reading module 2 reads the playing content code number data stored in the radio frequency card, the playing content code number data is sent to a playing control system in the audio playing module 1, and the module is a radio frequency card reader chip or circuit supporting the reading of the content of the radio frequency card 3.
The radio frequency card 3 is a passive storage module, and the common operating frequencies are 125Khz, 13.56Mhz, and 2.4GHz, and are used to store the code number data of the playing content, and the code number data is used to refer to a group of digital audio files.
And the audio and video content memory 4 stores digital audio files, and the digital audio files are read and played by the audio playing module 1.
Compared with the prior art, the invention has the beneficial effects that: compared with a mode of selecting through keys or touch, the method has the advantages that the selection and switching of the playing content are carried out through the radio frequency card, the method is more visual and convenient, and the complexity of switching the audio content is greatly reduced.
Drawings
Fig. 1 is a block diagram of an audio playing system capable of rapidly switching playing contents according to the embodiment of the present invention.
Fig. 2 is a view of the stored content of the first rf card 3 of the audio playing system capable of fast switching the playing content according to the embodiment of the present invention;
fig. 3 is a view of the stored content of the second rf card 3 of the audio playing system capable of fast switching the playing content according to the embodiment of the present invention;
fig. 4 is a storage structure diagram in the audio content memory 4 of the audio playing system capable of rapidly switching playing contents according to the embodiment of the present invention;
fig. 5 is a processing flow chart of the audio playing module 1 of the embodiment 1 of the audio playing system capable of quickly switching playing contents according to the present embodiment of the invention;
fig. 6 is a processing flow chart of the audio playing module 1 of the embodiment 2 of the audio playing system capable of quickly switching playing contents according to the present embodiment of the invention;
fig. 7 is a storage structure diagram of an audio content memory 4 of an embodiment 3 of an audio playing system capable of quickly switching playing contents according to the present embodiment of the invention;
fig. 8 is a block diagram of an embodiment 3 of an audio playing system capable of fast switching playing contents according to the present embodiment of the invention
A digital audio file storage structure diagram;
fig. 9 is a flowchart of processing of an audio playing module 1 of an embodiment 3 of an audio playing system capable of quickly switching playing contents according to the present embodiment of the invention;
detailed description of the preferred embodiment 1
As shown in fig. 1, the present invention provides an audio playing system capable of switching playing contents rapidly, which is characterized in that the audio playing system comprises: the system comprises an audio playing module 1, a radio frequency card reading module 2, a radio frequency card 3 and an audio content memory 4. Fig. 5 shows a processing flow of the audio playing module 1 according to this embodiment.
The following describes an audio playing system capable of rapidly switching playing contents according to the present invention in detail with reference to the accompanying drawings and specific embodiments.
Taking a case that two video cards and a digital audio file are in an MP3 format as an example, the code data content stored in the first radio frequency card 3 is 000001 as shown in fig. 2, and the code data content stored in the second radio frequency card 3 is 000002 as shown in fig. 3; the storage structure in the audio content memory 4 is as shown in fig. 4, three audio files music0.mp3, music1.mp3, and music2.mp3 are stored in the directory 000001, and three audio files music3.mp3, music4.mp3, and music5.mp3 are stored in the directory 000002;
when the system is powered on, the audio playing module 1 checks whether valid code data is sent from the radio frequency card reading module 2, if the radio frequency card reading module 2 cannot read the code data content stored in the valid radio frequency card and sends the code data to the audio playing module 1, the audio playing module 1 directly reads a digital audio file from the audio content memory 4 for playing, the content read from the audio content memory 4 by the audio playing module 1 is not limited, and whether new valid code data is sent from the radio frequency card reading module 2 is continuously monitored; the radio frequency card reading module 2 continuously monitors whether a radio frequency card 3 is accessed into the system, if the radio frequency card 3 is accessed into the system, the code number data stored in the radio frequency card 3 is read and the code number data is transmitted to the audio playing module 1, for example, after the first radio frequency card 3 in the example is accessed into the system, the radio frequency card reading module 2 reads the code number data 000001 stored in the first radio frequency card 3, the radio frequency card reading module 2 transmits the code number data 000001 stored in the first radio frequency card 3 to the audio playing module 1, after the audio playing module 1 receives the code number data 000001 transmitted by the radio frequency card reading module 2, the audio playing module 1 reads the digital audio file stored in the directory 000001 corresponding to the code number data 000001 from the audio content memory 4 for playing, and if the audio playing module 1 does not find the file directory 000001 in the audio content memory 4, the digital audio file is directly read from the audio content memory 4 for playing;
detailed description of the preferred embodiment 2
As shown in fig. 1, the present invention provides an audio playing system capable of switching playing contents rapidly, which is characterized in that the audio playing system comprises: the system comprises an audio playing module 1, a radio frequency card reading module 2, a radio frequency card 3 and an audio content memory 4. Fig. 6 shows a processing flow of the audio playing module 1 according to this embodiment.
The following describes an audio playing system capable of rapidly switching playing contents according to the present invention in detail with reference to the accompanying drawings and specific embodiments.
Taking a case that two video cards and a digital audio file are in an MP3 format as an example, the code data content stored in the first radio frequency card 3 is 000001 as shown in fig. 2, and the code data content stored in the second radio frequency card 3 is 000002 as shown in fig. 3; the storage structure in the audio content memory 4 is as shown in fig. 4, three audio files music0.mp3, music1.mp3, and music2.mp3 are stored in the directory 000001, and three audio files music3.mp3, music4.mp3, and music5.mp3 are stored in the directory 000002;
when the system is powered on, the audio playing module 1 checks whether valid code number data is sent from the radio frequency card reading module 2, if the radio frequency card reading module 2 cannot read the code number data content stored in the valid radio frequency card, the radio frequency card reading module 2 sends the code number data 000000 to the audio playing module 1, the audio playing module 1 directly reads a digital audio file from the audio content memory 4 for playing after receiving the code number data 000000 sent by the radio frequency card reading module 2, the content read from the audio content memory 4 by the audio playing module 1 is not limited, and whether new valid code number data is sent from the radio frequency card reading module 2 is continuously monitored; the radio frequency card reading module 2 continuously monitors whether a radio frequency card 3 is accessed into the system, if the radio frequency card 3 is accessed into the system, code number data stored in the radio frequency card 3 is read and the code number data is transmitted to the audio playing module 1, for example, after a first radio frequency card 3 in the example is accessed into the system, the radio frequency card reading module 2 reads code number data 000001 stored in the first radio frequency card 3, the radio frequency card reading module 2 transmits the code number data 000001 stored in the first radio frequency card 3 to the audio playing module 1, after the audio playing module 1 receives the code number data 000001 transmitted by the radio frequency card reading module 2, the audio playing module 1 reads a digital audio file stored in a directory 000001 corresponding to the code number data 000001 from the audio content memory 4 for playing, and if the audio playing module 1 does not find the file directory 000001 in the audio content memory 4, the digital audio file is directly read from the audio content memory 4 for playing; when the first radio frequency card 3 is removed from the system, the radio frequency card reading module 2 sends the code number data 000000 to the audio playing module 1, after the audio playing module 1 receives the code number data 000000 sent by the radio frequency card reading module 2, the digital audio file is directly read from the audio content memory 4 for playing, and the content read from the audio content memory 4 by the audio playing module 1 is not limited.
Detailed description of preferred embodiments 3
As shown in fig. 1, the present invention provides an audio playing system capable of switching playing contents rapidly, which is characterized in that the audio playing system comprises: the system comprises an audio playing module 1, a radio frequency card reading module 2, a radio frequency card 3 and an audio content memory 4. Fig. 9 shows a processing flow of the audio playing module 1 according to this embodiment.
The following describes an audio playing system capable of rapidly switching playing contents according to the present invention in detail with reference to the accompanying drawings and specific embodiments.
Taking a case that two video cards and a digital audio file are in an MP3 format as an example, the code data content stored in the first radio frequency card 3 is 000001 as shown in fig. 2, and the code data content stored in the second radio frequency card 3 is 000002 as shown in fig. 2; the storage structure in the audio content memory 4 is a playlist file as shown in fig. 7, the playlist file stores an Index file of a digital audio file, the Index file corresponds to an audio file stored in the audio content memory 4, and Index _ music0.mp3 in the Index content corresponds to an audio file music0.mp3 stored in the audio content memory 4;
as shown in fig. 8, three audio files music0.mp3, music1.mp3, music2.mp3 are stored in the file directory Dir01, and three audio files music3.mp3, music4.mp3, music5.mp3 are stored in the file directory Dir 02;
when the system is powered on, the audio playing module 1 checks whether valid code number data is sent from the radio frequency card reading module 2, if the radio frequency card reading module 2 cannot read the code number data content stored in the valid radio frequency card, the radio frequency card reading module 2 sends the code number data 000000 to the audio playing module 1, the audio playing module 1 directly reads a digital audio file from the audio content memory 4 for playing after receiving the code number data 000000 sent by the radio frequency card reading module 2, the content read by the audio playing module 1 from the audio content memory 4 is not limited, and whether new valid code number data is sent from the radio frequency card reading module 2 is continuously monitored; the radio frequency card reading module 2 continuously monitors whether a radio frequency card 3 is accessed into the system, if the radio frequency card 3 is accessed into the system, code number data stored in the radio frequency card 3 is read and the code number data is transmitted to the audio playing module 1, for example, after a first radio frequency card 3 in the example is accessed into the system, the radio frequency card reading module 2 reads code number data 000001 stored in the first radio frequency card 3, the radio frequency card reading module 2 transmits the code number data 000001 stored in the first radio frequency card 3 to the audio playing module 1, after the audio playing module 1 receives the code number data 000001 transmitted by the radio frequency card reading module 2, the audio playing module 1 reads an audio playing list file 000001 corresponding to the code number data 000001 from the audio content memory 4, a group of digital audio files corresponding to the code number data 000001 is read from the audio playing list file 000001 by the audio playing module 1, and the audio playing module 1 reads the audio files in the group of digital audio files corresponding to the code number data 000001 from the audio content memory 4 for playing; if the audio playing module 1 does not find the audio playlist file 000001 in the audio content memory 4, directly reading the digital audio file from the audio content memory 4 for playing; when the first radio frequency card 3 is removed from the system, the radio frequency card reading module 2 sends the code number data 000000 to the audio playing module 1, after the audio playing module 1 receives the code number data 000000 sent by the radio frequency card reading module 2, the digital audio file is directly read from the audio content memory 4 for playing, and the content read from the audio content memory 4 by the audio playing module 1 is not limited.
Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the invention. Any and all equivalent ranges and contents within the scope of the claims should be considered to be within the intent and scope of the present invention.
Claims (10)
1. An audio playing system capable of rapidly switching playing contents, comprising: the system comprises an audio playing module 1, a radio frequency card reading module 2, a radio frequency card 3 and an audio content memory 4.
2. The audio playback system according to claim 1, wherein the audio playback system is capable of switching playback contents rapidly: the content stored inside the radio frequency card is any data which can be identified by the audio playing module 1 and converted into an audio playing file index.
3. The audio playback system according to claim 2, wherein the audio playback system is capable of switching playback contents rapidly: the content played by the audio and video playing module 1 can be switched by replacing the radio frequency card 3.
4. The audio playback system capable of switching playback contents rapidly as claimed in claim 3, wherein: the audio content storage 4 may be a storage device directly accessible to the system or may be a storage device providing the content of the digital audio file that is not integrated in the system.
5. The audio playback system of claim 4, wherein the playback content can be switched rapidly according to the following steps: the audio playing module 1 and the audio content memory 4 can be directly connected locally through a circuit, or can be connected through various wireless or limited networks, and data transmission between the audio playing module 1 and the audio content memory 4 is realized.
6. The audio playback system of claim 5, wherein the playback content can be switched rapidly according to the following steps: the number of the radio frequency cards 3 can be 1 or more.
7. The audio playback system of claim 6, wherein the playback content can be switched rapidly according to the following steps: the radio frequency card 3 is a radio frequency card with any one operating frequency, and specifically mainly includes a radio frequency card with an operating frequency of 125Khz, a radio frequency card with an operating frequency of 13.56Mhz, and a radio frequency card with an operating frequency of 2.4GHz, but is not limited to the above radio frequency cards.
8. The audio playback system according to claim 7, wherein the audio playback system is capable of switching playback contents rapidly: the data stored in the radio frequency card 3 may be encrypted data or plaintext data.
9. The audio playback system capable of switching playback contents rapidly as claimed in claim 8, wherein: the radio frequency card 3 can be always placed at a fixed position in the system, or the radio frequency card can be removed from the system after the radio frequency card reading module 2 reads the data of the radio frequency card 3.
10. The audio playing system capable of switching playing contents rapidly as claimed in claim 9, wherein when the audio playing module 1 receives the code data sent by the rf card reading module 2 and starts playing the audio file corresponding to the code data, the audio playing module 1 can still respond to the request of other keys or control signals.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021216281693 | 2021-07-18 | ||
| CN202121628169 | 2021-07-18 |
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| CN115641881A true CN115641881A (en) | 2023-01-24 |
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Citations (6)
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| US20050181756A1 (en) * | 2004-02-17 | 2005-08-18 | Chung-Hung Lin | Wireless digital music player |
| CN103165148A (en) * | 2011-12-09 | 2013-06-19 | 上海博泰悦臻电子设备制造有限公司 | Vehicle-mounted terminal and vehicle-mounted terminal music playing method |
| CN105989183A (en) * | 2015-05-15 | 2016-10-05 | 乐卡汽车智能科技（北京）有限公司 | Music recognition method and device of car radio |
| CN109102724A (en) * | 2018-09-19 | 2018-12-28 | 浙江智玲机器人科技有限公司 | Formative education robot |
| CN110392011A (en) * | 2018-04-12 | 2019-10-29 | 上海博泰悦臻网络技术服务有限公司 | Method for playing music and music playing system |
| CN112685595A (en) * | 2020-12-28 | 2021-04-20 | 四川天邑康和通信股份有限公司 | Car networking vehicle player |
-
2022
- 2022-03-17 CN CN202210265024.4A patent/CN115641881A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050181756A1 (en) * | 2004-02-17 | 2005-08-18 | Chung-Hung Lin | Wireless digital music player |
| CN103165148A (en) * | 2011-12-09 | 2013-06-19 | 上海博泰悦臻电子设备制造有限公司 | Vehicle-mounted terminal and vehicle-mounted terminal music playing method |
| CN105989183A (en) * | 2015-05-15 | 2016-10-05 | 乐卡汽车智能科技（北京）有限公司 | Music recognition method and device of car radio |
| CN110392011A (en) * | 2018-04-12 | 2019-10-29 | 上海博泰悦臻网络技术服务有限公司 | Method for playing music and music playing system |
| CN109102724A (en) * | 2018-09-19 | 2018-12-28 | 浙江智玲机器人科技有限公司 | Formative education robot |
| CN112685595A (en) * | 2020-12-28 | 2021-04-20 | 四川天邑康和通信股份有限公司 | Car networking vehicle player |
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