| With the progress and development of science and technology, especially the rapiddevelopment of wireless technology, occupies important role in family electronic devices ofaudio equipment also began from wired to wireless, in recent years, the major manufacturershave launched their own wireless audio. So far, the wireless technology of wireless audiomainly includes infrared, bluetooth, WiFi, etc. Compared with other wireless technologies,WiFi technology has high speed of data transmission, the transmission distance, network, etc,become the mainstream of wireless technology.Current home network technology rapid development, household electronic equipmenthave to develop in the direction of intelligent, networked, in order to make all kinds ofelectronic equipment connectivity in home network and through wired or wireless, and realizemultimedia resources sharing seamless and easily. The DLNA (Digital Living NetworkAlliance) founded by Sony, Intel, Microsoft and other companies has proposed the DLNAprotocol.Android is open source operating system and based on the Linux kernel released byGoogle, at present, widely used in the smart phone, smart TV and tablet. In view of thedevelopment of home network and comparing the current wireless technology, this topicchoose WiFi technology and DLNA agreement as the research target, based on the Androidoperating system, designed a cost-effective wireless audio system.This topic designed by wireless audio system select A10s witch is based on ARMCortexTM-A8as the main chip, AXP209as power management chip, increases the WiFitechnology based on the traditional sound system. Easily implement mobile phone, tablet, andnotebook of mobile devices control the audio whenever and wherever by DLNA agreement.External expansion physical keys, LED display, infrared remote control, SDCARD and USBinterface circuit, make the user experience better, meet the market demand. It is a fullyfunctional and stable performance of wireless audio system. |
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