摘要:隨著城鎮居民人口的增長，住宅區的三表數量也飛速增多。傳統的手抄方式花費的時間多并且效率低下，少數用戶拖欠水電費的現象也影響了水電公司的利益。本文基于ZigBee網絡提出了智能小區自動抄表系統。該系統由協調器節點、終端節點和上位機組成。協調器節點和終端節點都包含以CC2530芯片為核心的無線通信模塊。協調器節點負責組建ZigBee網絡，完成水、電、煤氣數據與上位機的傳輸；終端節點負責采集、存儲并向協調器節點上傳水、電、煤氣數據，和協調器節點之間通過ZigBee協議完成無線傳輸。多個終端節點位于不同的用戶，每個終端節點把數據傳給協調器節點，在協調器節點完成數據融合，然后協調器節點把數據通過串口傳給上位機，上位機監控界面會顯示即時的水、電、煤氣信息。

關鍵詞 ZigBee；協調器節點；終端節點；CC2530

Abstract:Along with the urban population growth, the number of the water-flowmeters and the electricity meters and the gas meters of residential area is increasing rapidly. The traditional way of meter reading is manual, but it takes more time and ineffeicient. The phenomenon that a few numbers of residents delay the time to pay for the hydropower company damage their interests. This paper presents the automatic meter reading system of intelligent community based on ZigBee network. The system consists of the coordinator node, terminal nodes and host computer. The coordinator node and terminal node contains a wireless communication module based on CC2530 chip as the core. The coordinator node is responsible for the construction of ZigBee network, and transfer the data of the water-flowmeter, electricity meter and the gas meter to host computer. The terminal node collects and storage the data, and transfer them to the coordinator node by wireless transmition based on ZigBee. Every terminal node locates in different users, each terminal node transfer data to the coordinator node, and the data fuse in the coordinator, finally the coordinator node transfer data to host computer through the serial port, the computer interface will display the instant message of the water, the electricity and the gas.

Keywords  ZigBee  coordinator node  terminal node  CC2530

　　　本文主要研究的是在短距離無線數據采集方面的無線多點水流量采集系統的具體應用。本系統以CC2530作為主控芯片，以TI公司Z-Stack協議棧為基礎，并利用RS232串口標準，實現了多點數據的采集，短距離無線傳輸和在上位機的觀測。

　　　通過對ZigBee協議的分析，加深了對IEEE 802.15.4和ZigBee協議是構建多點無線水流量采集系統的基礎的理解。

　　　通過對Z-Stack的分析和理解，對路由機制的選擇，節點自動組網和節點綁定有了更進一步的理解。

　　　通過系統的硬件連接，對協調器節點、終端節點的工作方式以及硬件結構有了更細致的了解。

　　　通過對系統的軟件設計，對協調器節點與終端節點之間的相互通信以及協調器節點與PC機之間的串口通信都有了更深的理解。