基于网络拓扑的生鲜食品供应链管理的无线传感器网络设计

Design of wireless sensor network for fresh food supply chain management based on network topology

基于ZigBee标准无线传感器网络(WSN),开发设计了一套实时生鲜食品供应链监控系统,并改进了综合传感器的可配置架构和网络交换方案。从性能方面对192个终端设备的树型拓扑无线传感器网络系统和80个终端设备的星型拓扑无线传感器网络系统进行了实现和评价。测试结果表明,数据通信的成功率在99%以上,理论分析和实际测量的结果表明,终端设备的功能及寿命足以满足供应链监控的应用。

Environmental monitoring during transportation is the key of fresh food supply-chain management.It provides important information for assessing food quality and predicting shelf life.Based on Zigbee standard wireless sensor network(WSN),a real-time monitoring system for fresh food supply chain was developed and designed in this study,and the configurable architecture and network switching scheme of integrated sensors was also improved to meet the practical application requirements.In terms of performance,the tree topology wireless sensor network system of 192 terminal devices and star topology wireless sensor network system of 80 terminal devices were implemented and evaluated.The test results showed that the success rate of data communication was over 99%.The results of theoretical analysis and practical measurement showed that the function and life of terminal equipment were enough to meet the application of supply chain monitoring.