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为了解决目前无线音乐路由器性能不稳定问题,研究开发一个基于mips架构的轻量级无线音乐路由器。基于DLNA标准,采用Platinum架构设计并实现了轻量级DLNA控制点与设备交互发现模块。设计了一个有优先级的状态机管理机制来管理交互控制模块的命令序列,来避免频繁音乐控制导致控制信号混乱的问题。设计了一个高保真无损音频播放器,实现设备自动下载音频文件序列表到本地,并采用基于ALSA的高级Linux声音架构来实现音乐的高保真解码,确保高品质的音乐输出至音响设备。采用Chariot和Iperf软件进行对音乐路由器与手机端的真实测试,吞吐量和用户数据报协议的测试结果表明控制信号的无线传输性能高效稳定,音质测试结果表明能够得到高质量的音频信号。
In order to solve the current wireless music router performance instability, research and development based on the mips architecture lightweight wireless music router. Based on the DLNA standard, the Platinum architecture is used to design and implement a lightweight DLNA control point and device interaction discovery module. A prioritized state machine management mechanism is designed to manage the sequence of commands in the interactive control module to avoid the problem of frequent control of the music causing confusion in the control signals. A high-fidelity, lossless audio player was designed to automatically download the audio file sequence list to the local area and use the advanced ALSA-based Linux audio architecture for high-fidelity music decoding to ensure high-quality music output to the audio device. The test results of the real test, throughput and user datagram protocol of the music router and the mobile terminal by using Chariot and Iperf software show that the wireless transmission performance of the control signal is stable and efficient, and the sound quality test result shows that the high-quality audio signal can be obtained.