Aiming at the weaknesses of LON bus, combining the coexistence of fieldbus and DCS (Distribu ted Control Systems) in control networks, the authors introduce a hierarchical hybrid control network design based on LON an...Aiming at the weaknesses of LON bus, combining the coexistence of fieldbus and DCS (Distribu ted Control Systems) in control networks, the authors introduce a hierarchical hybrid control network design based on LON and master slave RS 422/485 protocol. This design adopts LON as the trunk, master slave RS 422/485 control networks are connected to LON as special subnets by dedicated gateways. It is an implementation method for isomerous control network integration. Data management is ranked according to real time requirements for different network data. The core components, such as control network nodes, router and gateway, are detailed in the paper. The design utilizes both communication advantage of LonWorks technology and the more powerful control ability of universal MCUs or PLCs, thus it greatly increases system response speed and performance cost ratio.展开更多
紧跟广播电视和网络视听技术的最新发展,改造传统广播总控系统建设模式,并结合自身实践要求,阐述以音频工程协会(Audio Engineering Society,AES)和基于网际互连协议的音频传输(Audio over Internet Protocol,AoIP)为技术架构的广播总...紧跟广播电视和网络视听技术的最新发展,改造传统广播总控系统建设模式,并结合自身实践要求,阐述以音频工程协会(Audio Engineering Society,AES)和基于网际互连协议的音频传输(Audio over Internet Protocol,AoIP)为技术架构的广播总控系统的构建方式及其功能特点。展开更多
文摘Aiming at the weaknesses of LON bus, combining the coexistence of fieldbus and DCS (Distribu ted Control Systems) in control networks, the authors introduce a hierarchical hybrid control network design based on LON and master slave RS 422/485 protocol. This design adopts LON as the trunk, master slave RS 422/485 control networks are connected to LON as special subnets by dedicated gateways. It is an implementation method for isomerous control network integration. Data management is ranked according to real time requirements for different network data. The core components, such as control network nodes, router and gateway, are detailed in the paper. The design utilizes both communication advantage of LonWorks technology and the more powerful control ability of universal MCUs or PLCs, thus it greatly increases system response speed and performance cost ratio.
文摘紧跟广播电视和网络视听技术的最新发展,改造传统广播总控系统建设模式,并结合自身实践要求,阐述以音频工程协会(Audio Engineering Society,AES)和基于网际互连协议的音频传输(Audio over Internet Protocol,AoIP)为技术架构的广播总控系统的构建方式及其功能特点。
