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
提出在城轨云平台架构下,基于虚拟路由器冗余协议(VRRP)的ATS主备中心网络切换技术,并对A T S主备中心切换的组网需求、切换原理、组网结构、网络设计等方面进行分析和阐述。旨在以ATS主用中心和备用中心网络均健壮的基础上,实现ATS主...提出在城轨云平台架构下,基于虚拟路由器冗余协议(VRRP)的ATS主备中心网络切换技术,并对A T S主备中心切换的组网需求、切换原理、组网结构、网络设计等方面进行分析和阐述。旨在以ATS主用中心和备用中心网络均健壮的基础上,实现ATS主备容灾切换,从而提高运营效率和服务质量,并且对城市轨道交通信号系统A T S融合云平台架构的主备中心切换需求提供一定的参考意义,为同场景的地铁信号系统项目提供参考。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.
文摘提出在城轨云平台架构下,基于虚拟路由器冗余协议(VRRP)的ATS主备中心网络切换技术,并对A T S主备中心切换的组网需求、切换原理、组网结构、网络设计等方面进行分析和阐述。旨在以ATS主用中心和备用中心网络均健壮的基础上,实现ATS主备容灾切换,从而提高运营效率和服务质量,并且对城市轨道交通信号系统A T S融合云平台架构的主备中心切换需求提供一定的参考意义,为同场景的地铁信号系统项目提供参考。
