关于BACnet的下层通信网络向IPv6扩展的分析

The Analysis of the Expanding of Communication Network of BACnet to IPv6

BACnet协议是用于楼宇自控网络的数据通信协议,它采用了四层结构,即应用层、网络层、数据链路层和物理层。BACnet协议在数据链路层和物理层定义了多种网络技术作为其下层通信网络。BACnet协议在其附录a中增加了BACnet/IP技术规范,将IPv4网络也作为下层通信网络。从网络技术的发展来看,IPv6网络必然将取代IPv4网络,针对这一趋势,提出了把IPv6网络作为BACnet的下层通信网络的观点,分析了利用现有的BACnet/IP结构能否实现这一构想,并给出用软件来解决这一问题的方法。

BACnet is a data communication protocol of building automatic control network. The structure of BACnet has four levels. They are application layer,network layer,data link layer and physical layer. BACnet uses many types of network as lower communication network. BACnet / IP technique is also added to addenda a of BACnet. It makes use of IPv4 as communication network. From the point of the development of network technology,IPv4 will be substituted by IPv6. So the thesis gives an idea that we can use IPv6 as communication network of BACnet and gives an analysis whether we can use BACnet/IP structure to achieve it. At last,It also gives a software solution.