CN201111930Y

CN201111930Y - Audio playing device

Info

Publication number: CN201111930Y
Application number: CNU2007201731758U
Authority: CN
Inventors: 王波
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-18
Filing date: 2007-09-18
Publication date: 2008-09-10
Anticipated expiration: 2017-09-18

Abstract

The utility model discloses an audio player. An audio decoding chip is connected with the PB-terminal module of an SCM so as to initialize the audio decoding chip; the audio decoding chip is also connected with the SPI-terminal module of the SCM for receiving audio data; a data memory is connected with the SPI-terminal module of the SCM for storing audio data; a clock chip is connected with the PD-terminal module of the SCM for providing clock signals; a play device is connected with the audio decoding chip for playing the audio signals; the PB-terminal module, and the SPI-terminal module and the PD-terminal module of the SCM are connected through a data bus. By adopting the technical proposal of the audio player of the utility model, not only can the preset audio files be played at regular time automatically but also the audio device can be opened at regular time.

Description

A kind of audio playing apparatus

Technical field

The utility model relates to a kind of audio playing apparatus.

Background technology

In school, factory, market or station, often need to play music or the broadcasting that pre-sets at a fixed time, when still playing, need manually relevant equipment to be opened, and the file that will play is found and could play.This mode requires no matter when all will manually participate in, thus waste of manpower, and the situation that mistake is broadcast may take place.

The utility model content

The purpose of this utility model is to propose a kind of audio playing apparatus, can the self-timing displaying audio file.

For reaching this purpose, the utility model by the following technical solutions:

A kind of audio playing apparatus, comprise single-chip microcomputer, the audio decoder chip, data-carrier store, clock chip and tone playing equipment, the PB port module of described audio decoder chip and described single-chip microcomputer is connected, be used for the described audio decoder chip of initialization, described audio decoder chip also is connected with the SPI port module of described single-chip microcomputer, be used to receive voice data, the SPI port module of described data-carrier store and described single-chip microcomputer is connected, be used for stores audio data, the PD port module of described clock chip and described single-chip microcomputer is connected, be used to provide clock signal, described tone playing equipment is connected with described audio decoder chip, be used for playing audio signal, the PB port module of described single-chip microcomputer, connect by data bus between SPI port module and the PD port module.

Described tone playing equipment is audio distribution device or power amplifier, and described tone playing equipment also is connected with the PD port module of described single-chip microcomputer, is used to control the power supply of described tone playing equipment.

Also comprise keyboard, the PD port module of described keyboard and described single-chip microcomputer is connected, and is used for input clock data and control tone playing equipment power supply.

Also comprise display screen, the PA port module of described display screen and described single-chip microcomputer is connected, and is used to the information of displaying the play.

Also comprise power supply, described power supply is used to provide electric power.

Described audio decoder chip is the MP3 decoding chip.

Described data-carrier store is the SD card.

Described display screen is a LED display.

Adopt the technical solution of the utility model, not only can play the audio file that sets in advance by self-timing, and can regularly open tone playing equipment, thereby save manpower, and guaranteed the correct of played file.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment sound intermediate frequency playing device.

Embodiment

Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.

Fig. 1 is the structural representation of this embodiment sound intermediate frequency playing device.As shown in Figure 1, audio playing apparatus comprises single-chip microcomputer 101, MP3 decoding chip 107, data-carrier store SD card 108, clock chip 109, keyboard 110, LED display 111, tone playing equipment 112 and power supply 113, single-chip microcomputer comprises PB port module 102, PA port module 103, SPI port module 104, PD port module 105 and PD port module 106, interconnects by data bus 114 between PB port module, PA port module, SPI port module, PD port module and the PD port module.

The PB port module of ATMegal6L single-chip microcomputer is connected with the MP3 decoding chip, be used for this MP3 decoding chip of initialization, the PA port module of ATMegal6L single-chip microcomputer is connected with LED 1602 display screens, the broadcast information that shows audio file by display screen, the ATMegal6L single-chip microcomputer the SPI port module both with data-carrier store SD card connection, be connected with the MP3 decoding chip again, the audio file data of storing in the reading of data storer SD card, and send to the MP3 decoding chip, the PD port module of ATMegal6L single-chip microcomputer connects clock chip DS1302 and keyboard, obtain clock information from clock chip on the one hand, on the one hand by keyboard input clock data, and can directly control the power switch of tone playing equipment, tone playing equipment comprises audio distribution device and several power amplifiers, these amplifiers are connected with the PD port module on the one hand, be used to receive power control signal, be connected with the MP3 decoding device on the other hand, be used for received audio signal and broadcast, the ATMegal6L single-chip microcomputer also has a power supply in addition, is used to provide electric power.

When using this audio playing apparatus, storing audio files data on data-carrier store SD card at first, and the playing task of passing through notepad function editing audio file is tabulated, by keyboard from the PD port module of single-chip microcomputer to clock chip input clock data, the SPI port module of single-chip microcomputer reads the playing task tabulation on the SD card then, the PD port module of single-chip microcomputer reads the clock information on the clock chip, determine next playing task according to playing task tabulation and clock information, and the PA port module of these information by single-chip microcomputer shown on LED display, arrive in playing task preceding 10 seconds, PB port module by single-chip microcomputer makes the MP3 decoding chip initiation, open the power supply of the tone playing equipment of appointment in the task by the PD port, when reproduction time arrives, the SPI port module of single-chip microcomputer constantly reads the audio file data of appointment from the SD card, and sending to the MP3 decoding chip, the MP3 decoding chip plays back in that decoded audio signal is sent to tone playing equipment.Can certainly directly control the power switch of tone playing equipment by keyboard.

The advantage of this embodiment is regularly to play the sound specified file according to the playing task tabulation; Work alone, need not control by special purpose computer; Simple to operate, the playing task tabulation can be edited in " notepad " and be finished; Use SD (MMC) card as storer, realize " separation between machine and card "; Carry the control of multichannel (can customize) tone playing equipment (power amplifier, audio frequency adapter etc.) power supply by customer requirements; The power supply of tone playing equipment both can have been controlled automatically also and can manually control.

The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with the people of this technology in the disclosed technical scope of the utility model; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.

Claims

1, a kind of audio playing apparatus, it is characterized in that, comprise single-chip microcomputer, the audio decoder chip, data-carrier store, clock chip and tone playing equipment, the PB port module of described audio decoder chip and described single-chip microcomputer is connected, be used for the described audio decoder chip of initialization, described audio decoder chip also is connected with the SPI port module of described single-chip microcomputer, be used to receive voice data, the SPI port module of described data-carrier store and described single-chip microcomputer is connected, be used for stores audio data, the PD port module of described clock chip and described single-chip microcomputer is connected, be used to provide clock signal, described tone playing equipment is connected with described audio decoder chip, is used for playing audio signal, the PB port module of described single-chip microcomputer, connect by data bus between SPI port module and the PD port module.

2, a kind of audio playing apparatus according to claim 1, it is characterized in that, described tone playing equipment is audio distribution device or power amplifier, and described tone playing equipment also is connected with the PD port module of described single-chip microcomputer, is used to control the power supply of described tone playing equipment.

3, a kind of audio playing apparatus according to claim 1 is characterized in that, also comprises keyboard, and the PD port module of described keyboard and described single-chip microcomputer is connected, and is used for input clock data and control tone playing equipment power supply.

4, a kind of audio playing apparatus according to claim 1 is characterized in that, also comprises display screen, and the PA port module of described display screen and described single-chip microcomputer is connected, and is used to the information of displaying the play.

5, a kind of audio playing apparatus according to claim 1 is characterized in that, also comprises power supply, and described power supply is used to provide electric power.

6, a kind of audio playing apparatus according to claim 1 is characterized in that, described audio decoder chip is the MP3 decoding chip.

7, a kind of audio playing apparatus according to claim 1 is characterized in that, described data-carrier store is the SD card.

8, a kind of audio playing apparatus according to claim 4 is characterized in that, described display screen is a LED display.