CN201084428Y - An inlaid background music player - Google Patents
An inlaid background music player Download PDFInfo
- Publication number
- CN201084428Y CN201084428Y CNU2007201113765U CN200720111376U CN201084428Y CN 201084428 Y CN201084428 Y CN 201084428Y CN U2007201113765 U CNU2007201113765 U CN U2007201113765U CN 200720111376 U CN200720111376 U CN 200720111376U CN 201084428 Y CN201084428 Y CN 201084428Y
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- music player
- cpu chip
- background music
- chip
- embedded background
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Abstract
The utility model relates to an embedded background music player, belonging to the audio-frequency player technical field, comprising an SD card drive, a U disk drive, an FM radio-receiving, an MP3 player, which is characterized in that: the CPU chip is fitted and connected with the SD card interface and the USBHOST interface through the corresponding interface module; the CPU chip is connected with the MP3 decoder chip and the FM radio-receiving device; the CPU chip is also connected with the digital power amplifier device through the connecting-arrangement audio-frequency switching device; the digital power amplifier device and the switching power supply are arranged in the local control end. The utility model has the advantages that: the structure is simple and reasonable, the installation and use are convenient; the complex wire splice is not needed; the external connection power supply and the power amplifier are also not needed; the embedded background music player can be arranged at any place where need background music; the SD card and the U disk can be used as file storage for the MP3 conveniently; the playing of MP3 file, the receiving of the FM broadcasting station and the option playing of the external CD or TV signal can be operated by liquid crystal display.
Description
Technical field
The utility model belongs to the audio player technical field, is specially a kind of embedded background music player.
Background technology
At present, background music player commonly used has dual mode, mode one is for adopting the level pressure power amplifier, external source of sound, output to the external speaker system that connects impedance conversion by broadcast mode, far-end can only gauge tap and local volume, can't select different sources of sound, music is single and be the monophony system, and effect is general, mode two adopts external sound source, central host integrated multipath power amplifier is concentrated and is amplified output, carrying out source of sound at the operated from a distance end then switches, the mode of volume control, this mode can be stereophonic sound system, but main frame is huge, the installation wiring complexity, built-in source of sound can only be shared broadcast.Existing background music system wiring is complicated, and control section can only be selected the input of source of sound, can not show song title, does not introduce the SD card at control end, and the storage mode of USB flash disk can not be in problems such as control end USB flash disks.Can not show song title, can not be integrated in digital power amplifier and Switching Power Supply, MP3 decoding device, FM radio reception, SD card, USB flash disk interface the control end of one 86 mounting box, song can not independently be selected and control to each control end under non-interfering situation.
The utility model content
The purpose of this utility model is to overcome the above-mentioned problems in the prior art, design provides a kind of SD of collection card driving, USB flash disk driving, FM radio reception, MP3 playing function, and digital power amplifier and Switching Power Supply is built into the technical scheme of the embedded background music player of local control end.
Described a kind of embedded background music player, by playing panel, end box constitutes shell body, play to connect on the panel LCD is set, button, the built-in electronic music player of shell body comprises cpu chip, switching power unit, the digital power amplifier device, cpu chip is by corresponding module and LCD, button connects, it is characterized in that cpu chip passes through corresponding interface module and SD card, USB HOST interface is connected, cpu chip and MP3 decoding chip, the FM audio signal reception device connects and is connected with the digital power amplifier device by connecting the audio frequency switching device that is provided with.
Described a kind of embedded background music player is characterized in that cpu chip also is connected with the audio input interface module and is connected with the digital power amplifier device by connecting the audio frequency switching device that is provided with.
Described a kind of embedded background music player is characterized in that being provided with on the built-in electronic music player of shell body the infrared control device that is connected with cpu chip.
Described a kind of embedded background music player, it is characterized in that described USB interface by data bus D0-D7 and relevant control line (USB_INT, RESET, RD, WR AO) is connected with cpu chip.
Described a kind of embedded background music player is characterized in that described SD card is connected with cpu chip by spi bus.
Described a kind of embedded background music player is characterized in that described LCD and cpu chip are by data bus D0-D7 and relevant control line (OLED_CS, RESET, RD, WR RS) connects, and described button is made up of KEY1-KEY9 and is connected with the cpu chip circuit.
Described a kind of embedded background music player is characterized in that described MP3 decoding chip is connected with cpu chip by spi bus, and the FM audio signal reception device is connected with the cpu chip circuit by the I2C bus with audio frequency switching device.
Described a kind of embedded background music player is characterized in that being provided with on the shell body speaker interface that is connected with the digital power amplifier device circuit.
Described a kind of embedded background music player is characterized in that described switching power unit is the switching power source chip of TOP series.
Described a kind of embedded background music player is characterized in that it is 8 single-chip microcomputers or ARM9 chip that described cpu chip adopts model ATMEGA64.
Above-mentioned a kind of embedded background music player integrates the driving of SD card, USB flash disk driving, FM radio reception, MP3 playing function, and digital power amplifier and Switching Power Supply are built into local control end.It is simple and reasonable, easy to install, does not need complicated line, does not also need external power supply and power amplifier, can be installed in the place that any needs provide background music.Can be convenient to use the SD card, USB flash disk is as the mp3 file storer, by the broadcast of liquid crystal display operation mp3 file, the signal broadcast of listening to and can select outside CD, TV in FM radio station.
Description of drawings
Fig. 1 is the main TV structure synoptic diagram of the utility model shell body;
Fig. 2 is the side-looking structural representation of the utility model shell body;
Fig. 3, Fig. 4 are the schematic block circuit diagram of the utility model different structure;
Fig. 5 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with Figure of description, the technical solution of the utility model is described further by embodiment.
As shown in the figure, by playing panel 2, end box 6 constitutes shell body, box 6 of the described end is installed end box for standard electrical, play to connect on the panel 2 LCD 1 is set, button 3, the built-in electronic music player of shell body comprises cpu chip 7, switching power unit 12, digital power amplifier device 13, cpu chip 7 is by corresponding module and LCD 1, button 3 connects, cpu chip 7 is by corresponding interface module and SD card 4, USB HOST interface 5 is connected, cpu chip 7 and MP3 decoding chip 11, FM audio signal reception device 10 connects and is connected with digital power amplifier device 13 by connecting the audio frequency switching device 8 that is provided with.It is 8 single-chip microcomputers that described cpu chip 7 adopts model ATMEGA64, the main different peripheral module of control of being responsible for, finish the operation and the control of system, cpu chip 7 is by data bus D0-D7 and relevant control line (OLED_CS, RESET, RD, WR RS) is connected with LCD 1, will need data presented to deliver in the LCD 1 and show, simultaneity factor can connect the button 3 of the different numbers of KEY1-KEY9 as required, the input of real user's control information, the reality of realization system information, the switching of audio frequency, volume is adjusted, functions such as song selection.Cpu chip 7 is by data bus D0-D7 and relevant control line (USB_INT, RESET, RD, WR, AO) link to each other with USB HOST interface 5, data bus D0-D7 finishes the transmission of data, the intact Control on Communication of counting of control line into 7 pairs of CH375 chips of cpu chip, by the CH375 chip, the user is inserted in file in the USB dish on the USB HOST interface 5 according to sending in the cpu chip 7 by data bus, and deliver to by the spi bus of cpu chip 7 as required and carry out audio decoder in the MP3 decoding chip 11, realize the broadcast of MP3, cpu chip 7 is connected with SD card 4 by spi bus, when the SD_SS of SD card gating, cpu chip 7 is by control and the reading and writing data of spi bus realization to SD, file data in the SD card is read processing in the cpu chip 7, and deliver to by spi bus more as required and carry out audio decoder in the MP3 decoding chip 11, realize the broadcast of MP3, cpu chip 7 links to each other with MP3 decoding chip 11 by spi bus, by MP3_CS chip is carried out gating, the MP3 data are sent into the output of decoding in the MP3 decoding chip 11 by spi bus, simultaneously, FM audio signal reception device 10 adopts TEA5767, and control by the I2C bus of cpu chip 7, realize the search in FM radio station, channel selection etc., the sound signal of output is delivered in the audio frequency switching device 8 simultaneously.Audio frequency switching device 8 realizations 4 tunnel sound signals (MP3, FM, CD, audio frequency TV) switches, the volume adjustment, tone is adjusted function, adopts the I2C bus to link to each other with cpu chip 7 equally, is controlled by cpu chip 7.Cpu chip 7 also is connected with audio input interface module 9,9a and is connected with digital power amplifier device 13 by connecting the audio frequency switching device 8 that is provided with.TL0038 is an infrared control device 15, the infrared signal of external remote receives the back and interrupts by IR_INT, data are delivered in the cpu chip 7, the infrared control of realization system is as 4 tunnel sound signal (MP3, FM, CD TV) carries out gating and control and by delivering in the digital power amplifier device 13 after audio frequency switching device 8 output as required, realize that stereo amplification outputs to speaker interface 14, power is controlled at about 2*5W.Switching power unit 12 adopts the switching power source chip of TOP series, and the typical case is as TOP222Y, and power setting is 15W, 12V output, by LM2575, power conversion chips such as AS1117 provide 9V simultaneously, 5V, the power supply that 3.3V.2.5V etc. are different unifies power supply for above chip.It more than is a kind of basic mode that circuit is realized in this embedded background music player, this embedded background music player can also adopt the solution of single-chip as required or adopt chip such as ARM9 to carry out software decode, can realize the simplification of circuit and the enhancing of function, not elaborate at this.
Claims (10)
1. embedded background music player, by playing panel (2), end box (6) constitutes shell body, broadcast panel (2) is gone up to connect LCD (1) is set, button (3), the built-in electronic music player of shell body comprises cpu chip (7), switching power unit (12), digital power amplifier device (13), cpu chip (7) is by corresponding module and LCD (1), button (3) connects, it is characterized in that cpu chip (7) is by corresponding interface module and SD card (4), USB HOST interface (5) is connected, cpu chip (7) and MP3 decoding chip (11), FM audio signal reception device (10) connects and is connected with digital power amplifier device (13) by connecting the audio frequency switching device (8) that is provided with.
2. a kind of embedded background music player according to claim 1 is characterized in that cpu chip (7) also is connected with audio input interface module (9,9a) and is connected with digital power amplifier device (13) by connecting the audio frequency switching device (8) that is provided with.
3. a kind of embedded background music player according to claim 1 is characterized in that being provided with on the built-in electronic music player of shell body the infrared control device (15) that is connected with cpu chip (7).
4. a kind of embedded background music player according to claim 1, it is characterized in that described USB interface (5) by data bus D0-D7 and relevant control line (USB_INT, RESET, RD, WR AO) is connected with cpu chip (7).
5. a kind of embedded background music player according to claim 1 is characterized in that described SD card (4) is connected with cpu chip (7) by spi bus.
6. a kind of embedded background music player according to claim 1, it is characterized in that described LCD (1) and cpu chip (7) are by data bus D0-D7 and relevant control line (OLED_CS, RESET, RD, WR, RS) connect, described button (3) is made up of KEY1-KEY9 and is connected with cpu chip (7) circuit.
7. a kind of embedded background music player according to claim 1, it is characterized in that described MP3 decoding chip (11) is connected with cpu chip (7) by spi bus, FM audio signal reception device (10) is connected with cpu chip (7) circuit by the I2C bus with audio frequency switching device (8).
8. a kind of embedded background music player according to claim 1 is characterized in that being provided with on the shell body speaker interface (14) that is connected with digital power amplifier device (13) circuit.
9. a kind of embedded background music player according to claim 1 is characterized in that described switching power unit (12) is the switching power source chip of TOP series.
10. a kind of embedded background music player according to claim 1 is characterized in that it is 8 single-chip microcomputers or ARM9 chip that described cpu chip (7) adopts model ATMEGA64.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201113765U CN201084428Y (en) | 2007-06-27 | 2007-06-27 | An inlaid background music player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201113765U CN201084428Y (en) | 2007-06-27 | 2007-06-27 | An inlaid background music player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201084428Y true CN201084428Y (en) | 2008-07-09 |
Family
ID=39626900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201113765U Expired - Fee Related CN201084428Y (en) | 2007-06-27 | 2007-06-27 | An inlaid background music player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201084428Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595080A (en) * | 2012-03-14 | 2012-07-18 | 冠捷显示科技（厦门）有限公司 | TV system for transmitting wireless audio in multi-process mode |
| CN102647158A (en) * | 2011-02-22 | 2012-08-22 | 苏州阿纳克斯爱酷达电子有限公司 | Power amplification system used for urban rail traffic system |
| CN103515122A (en) * | 2012-06-17 | 2014-01-15 | 厦门锐思达机电科技有限公司 | Switch panel with music play function |
| CN104575558A (en) * | 2015-01-22 | 2015-04-29 | 宁波德坤工业设计有限公司 | Music player fixed freely |
| CN107785036A (en) * | 2016-08-25 | 2018-03-09 | 特酷电子设备（上海）有限公司 | Smart home embedded Bluetooth background music player |
| CN107863123A (en) * | 2017-11-08 | 2018-03-30 | 泾县吉祥纸业有限公司 | A kind of music player and its player method |
| CN110275854A (en) * | 2019-05-18 | 2019-09-24 | 国营芜湖机械厂 | A kind of high frequency 100W power amplifier host man-machine interface system and its control method |
-
2007
- 2007-06-27 CN CNU2007201113765U patent/CN201084428Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647158A (en) * | 2011-02-22 | 2012-08-22 | 苏州阿纳克斯爱酷达电子有限公司 | Power amplification system used for urban rail traffic system |
| CN102595080A (en) * | 2012-03-14 | 2012-07-18 | 冠捷显示科技（厦门）有限公司 | TV system for transmitting wireless audio in multi-process mode |
| CN102595080B (en) * | 2012-03-14 | 2015-03-04 | 冠捷显示科技（厦门）有限公司 | TV system for transmitting wireless audio in multi-process mode |
| CN103515122A (en) * | 2012-06-17 | 2014-01-15 | 厦门锐思达机电科技有限公司 | Switch panel with music play function |
| CN104575558A (en) * | 2015-01-22 | 2015-04-29 | 宁波德坤工业设计有限公司 | Music player fixed freely |
| CN104575558B (en) * | 2015-01-22 | 2016-12-07 | 宁波德坤工业设计有限公司 | A kind of any fixed music player |
| CN107785036A (en) * | 2016-08-25 | 2018-03-09 | 特酷电子设备（上海）有限公司 | Smart home embedded Bluetooth background music player |
| CN107863123A (en) * | 2017-11-08 | 2018-03-30 | 泾县吉祥纸业有限公司 | A kind of music player and its player method |
| CN110275854A (en) * | 2019-05-18 | 2019-09-24 | 国营芜湖机械厂 | A kind of high frequency 100W power amplifier host man-machine interface system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20100627 |