智慧楼宇通信技术架构及关键技术研究  

Research on Architecture and Key Technology of Smart Building Communication Technology

作　　者：詹治国 林少波 郭栋 李天杰 展敬宇 张弛 ZHAN Zhiguo;LIN Shaobo;GUO Dong;LI Tianjie;ZHAN Jingyu;ZHANG Chi(Beijing Fibrlink Communications Co.,Ltd.,Beijing 100700,China)

机构地区：[1]北京中电飞华通信有限公司,北京100700

出　　处：《计算机测量与控制》2022年第12期175-179,217,共6页Computer Measurement &Control

摘　　要：为满足智慧楼宇中复杂的应用场景的通信需求,文章对智慧楼宇的通信网络架构进行研究,通信网络采用线性、环形和树形多种结构,通信层采用BACnet通信网络标准协议,使楼宇中复杂专有的设备得到统一的管理和调配;采用STM32F103ZET6处理器对通信网关进行设计,支持并行和串行通信方式,具有RS-485接口和CAN接口,使用TJA1050芯片作为接口控制器;根据智慧楼宇中的网络负载情况提出基于队列的MAC协议的通信网络,路由节点从接受到的数据包中提取队列长度指示符,并更新序号列表和时隙分配列表进行动态时隙分配;实验结果显示该研究通信网络的平均数据包延迟时间最短,数据包延迟时间低于300 ms,在数据负载突发时段,数据包延迟时间保持在500 ms以下。In order to meet the communication requirements of complex application scenarios in intelligent buildings,the communication network architecture of the intelligent buildings is studied in this paper.The communication network adopts the multiple structures of linear,ring and tree,and the communication layer adopts the BACnet standard communication network protocol,so that the complex and proprietary equipment can be uniformly managed and deployed in the buildings.STM32 F103 ZET6 processor is used to design the communication gateway,which supports the parallel and serial communication with RS-485 interface and CAN interface,and TJA1050 chip is used as the interface controller.According to the network load in the intelligent buildings,a communication network based on the queue MAC protocol is proposed.Routing nodes extract the queue length indicators from the received data packets and update the serial number list and timeslot allocation list for the dynamic timeslot allocation.The experimental results show that the average packet delay time of the communication network in this study is the shortest,the packet delay time is less than 300 ms,and the packet delay time remains below 500 ms during the data load burst period.

关 键 词：智慧楼宇 通信网络架构 BACNET协议 通信网关 路由节点 动态时隙分配 

分 类 号：TP37[自动化与计算机技术—计算机系统结构]