一种用于热网远程监测的非标准自组网研究  

A Research of Non-standard Self-organization Networks for Remote Monitoring of Heating Network

作　　者：李琦[1] 张坤[1] 朱林[1] 

机构地区：[1]内蒙古科技大学信息工程学院,内蒙古包头014010

出　　处：《计算机测量与控制》2012年第11期2882-2884,2912,共4页Computer Measurement &Control

基　　金：科技人员服务企业项目(2009GJA40027)

摘　　要：文章研究一种应用于热网客户端数据监测的无线非标准自组网协议,它工作于免费频段433MHz;无线自组网拓扑采用星型与树状相结合的组网方式;布设在小区客户端传感器节点硬件主要由STM32单片机和nRF905无线模块构成,实现树状组网和数据采集;汇聚节点布设于各热力站,借助于GPRS网络组成星型网将数据汇聚于因特网;协议栈软件基于μCOS/Ⅱ嵌入式操作系统设计实现,分为物理层、MAC层、网络层和应用层,文章给出了协议栈关键的地址分配算法、非时隙CSMA-CA机制及无线传感器网络组网和路由过程,详细讨论了帧类型和数据发送的逐层打包与数据接收后的帧结构解析的全过程。This article study a wireless non--standard protocol applied to the heating network monitoring of client data--networking, It works on free band 433MHz. The WSN uses a hybrid topology of tree and star. The sensor nodes emplaced in the residential client consist of STM32 MCU and the nRFg05 wireless module in hardware, it adopts the tree topology way and accomplishes data acquisition. , sink node emplaced in the heating station forming a star network with the help of the GPRS network, and aggregating data to the Internet. The soft- ware of protocol stack is based on the μCOS/Ⅱ embedded operating system, it consists of the physical layer, the MAC layer, the network layer and the application layer. This paper gives the key algorithms of address assignment, the none--slotted CSMA--CA mechanism and the process of forming wireless sensor network of the protocol stack and data routing, the type of frame of each layer and the package and analy- sis of frame structure in sending and receiving process are also discussed in detail.

关 键 词：无线自组网 GPRS网络 热管网 μCOS Ⅱ操作系统 433兆赫 无线模块nRF905 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]