基于LoRa与GPS的低功耗物流定位系统

LOW POWER LOGISTICS POSITIONING SYSTEM BASED ON LORA AND GPS

针对传统物流定位本地计算量大而导致终端功耗高成本大的问题,提出一种基于LoRa通信技术与GPS相结合的低功耗物流定位系统方案,将定位计算转移云端以减少定位终端的能耗。系统包括终端采集节点、网关节点和云服务器,并制定定位节点与网关的通信协议,设计定位终端节点的低功耗供电策略。实验测试表明,系统在相同定位精度条件下降低了定位终端22.9%的能耗,满足功能定位和实际应用需求,适用于物流园区大范围组网和定位。

Traditional logistics location has a large amount of local computing,resulting in high terminal power consumption and high cost.Aiming at this problem,we propose a low-power logistics positioning system based on the combination of LoRa communication technology and GPS.The system transferred the location computing to the cloud to reduce the energy consumption of the location terminal.It included terminal collection nodes,gateway nodes,and cloud servers.It formulated the communication protocol between the positioning node and the gateway,and designed the low-power supply strategy for positioning the terminal nodes.Experimental tests show that the system reduces the energy consumption of positioning terminals by 22.8%under the same positioning accuracy conditions,meets the needs of functional positioning and practical applications,and is suitable for large-scale networking and positioning in logistics parks.