多频与无线传感融合下的植保无人机通信系统研究

Research on Plant Protection UAV Communication System Based on the Multi-frequency and Wireless Sensor Fusion

为进一步提高植保无人机的通信质量与整机作业效率,以多频与无线传感融合通信机理为出发点,针对其通信系统进行设计。在深入理解无人机作业特点与通信控制目标的基础上,侧重通信链路质量与数据收发成功率等关键指标,建立无人机多频无线传感通信模型,以通信系统多频与无线传感融合设计框架为依托,进行硬件选型与软件控制模块设计。多频无线传感融合通信试验表明:通信系统经合理调度及多频无线融合,通信误差率平均可保持在2.889%,整机一次作业完成时间效率提高了12.83%;作业过程各通信节点设置准确合理,整机工作效率可由传统无线式的89.90%提高到93.20%。该设计满足多频融合数据传输稳定、高效的作业要求,具有很好的参考价值。

In order to further improve the communication quality and operation efficiency of plant protection UAV, the communication system of multi-frequency and wireless sensor fusion was designed. Based on a thorough understanding of the operation characteristics and communication control objectives of UAV, focusing on key indicators such as communication link quality and success rate of data transmission and reception, the UAV multi-frequency wireless sensor communication model was established. Relying on the framework of multi-frequency and wireless sensor fusion design of communication system, the main hardware selection and software control module design were carried. The experiment results of the multi-frequency wireless sensor fusion communication showed that the communication error rate could be maintained at an average of 2.889% after reasonable scheduling and multi-frequency wireless fusion and the efficiency of the whole machine’s one-time operation was improved by 12.83%. By setting up the communication nodes accurately and reasonably in the operation process, the efficiency of the whole machine could be increased from 89.90% to 93.20% compared with the traditional wireless mode. The experiment was feasible and the designs meet the requirements of stable and efficient operation of multi-frequency fusion data transmission, which would be a good reference value for improving the communication performance of UAV and similar intelligent agricultural machinery equipment.