Established on the Intel Multi-Core Embedded platform, using 802.11 Wireless Network protocols as the communication medium, combining with Radio Frequency-Communication and Ultrasonic Ranging, imple-ment a mobile term...Established on the Intel Multi-Core Embedded platform, using 802.11 Wireless Network protocols as the communication medium, combining with Radio Frequency-Communication and Ultrasonic Ranging, imple-ment a mobile terminal system in an intellectualized building. It can provide its holder such functions: 1) Accurate Positioning 2) Intelligent Navigation 3) Video Monitoring 4) Wireless Communication. The inno-vative point for this paper is to apply the multi-core computing on the embedded system to promote its com-puting speed and give a real-time performance and apply this system into the indoor environment for the purpose of emergent event or rescuing.展开更多
近年来,无线移动终端PDA(personal digital assistant)以其体积小、重量轻、功能完善等诸多特点在移动办公领域发挥了重要作用,而新一代视频编码标准H.264标准的提出又为无线信道等环境下的视频传输提供了更多技术保证。根据H.264编码...近年来,无线移动终端PDA(personal digital assistant)以其体积小、重量轻、功能完善等诸多特点在移动办公领域发挥了重要作用,而新一代视频编码标准H.264标准的提出又为无线信道等环境下的视频传输提供了更多技术保证。根据H.264编码标准的特点和PDA平台的基本特性,提出了一种无线局域网环境下的视频传输系统方案,该方案采用H.264作为视频编码方法,PDA作为移动终端,RTP/UDP/IP作为网络传输协议,并在此基础上构建了系统的演示平台。测试结果表明,该系统可以在无线局域网环境下实现视频的实时传输,显示帧率10帧/s以上(CIF格式)。展开更多
文摘Established on the Intel Multi-Core Embedded platform, using 802.11 Wireless Network protocols as the communication medium, combining with Radio Frequency-Communication and Ultrasonic Ranging, imple-ment a mobile terminal system in an intellectualized building. It can provide its holder such functions: 1) Accurate Positioning 2) Intelligent Navigation 3) Video Monitoring 4) Wireless Communication. The inno-vative point for this paper is to apply the multi-core computing on the embedded system to promote its com-puting speed and give a real-time performance and apply this system into the indoor environment for the purpose of emergent event or rescuing.
文摘近年来,无线移动终端PDA(personal digital assistant)以其体积小、重量轻、功能完善等诸多特点在移动办公领域发挥了重要作用,而新一代视频编码标准H.264标准的提出又为无线信道等环境下的视频传输提供了更多技术保证。根据H.264编码标准的特点和PDA平台的基本特性,提出了一种无线局域网环境下的视频传输系统方案,该方案采用H.264作为视频编码方法,PDA作为移动终端,RTP/UDP/IP作为网络传输协议,并在此基础上构建了系统的演示平台。测试结果表明,该系统可以在无线局域网环境下实现视频的实时传输,显示帧率10帧/s以上(CIF格式)。
