基于GPS/GPRS/GIS的冷链物流车载监控系统

摘要

The meat transport chain is a key link of ensuring the meat quality and safety traceability. To realize the visual manage￣ment of geographic and state information, such as temperature during the meat transport process, a real-time vehicle monitoring system is designed, in which the embedded control technology, GPS positioning technology, GPRS wireless communication tech￣nology and GIS geographic information technology are integrated.%为实现冷冻肉类食品运输过程中的食品安全追溯，以冷链运输车辆为监控对象，以嵌入式控制技术为基础，集成应用GPS定位技术、GPRS无线通信技术和GIS地理信息技术，构建了车载监控系统体系结构。研究了基于车辆运行轨迹的变周期信息传输方式，以减少GPRS数据流量，提出了最小垂直距离的地图匹配算法，设计开发车载实时监控系统，实现冷链物流过程车辆地理信息及车厢温度等状态信息的远程实时监控和可视化地图管理。