具有通信约束的无线地下传感器网络最佳工作频率选择方法  

Optimal working frequency selection method for wireless underground sensor networks with communication constraints

作　　者：赵绪亮 黄欢 陈炜智 吉祥 韦劼 郑杰 ZHAO Xiliang;HUANG Changhuan;CHEN Weizhi;JI Xiang;WEI Jie;ZHENG Jie(Guangxi Power Grid Co.,Ltd.,Liuzhou power supply bureau,Liuzhou,Guangxi 545005,China)

机构地区：[1]广西电网有限责任公司柳州供电局,广西柳州545005

出　　处：《自动化与仪器仪表》2024年第1期206-209,213,共5页Automation & Instrumentation

基　　金：数据赋能新型配电网洪涝预警技研究与系统研发子课题;山洪易涝等区域洪涝监测终端研发及示范应用(GXKJXM20220140)。

摘　　要：无线地下传感器网络主要应用于地质信息的实时探测,分为地下传感节点和地上接收节点,可以实时地将探测数据传输至网络系统。但其生命周期受电池能量约束,为延长节点的工作时间,增加无线地下传感器网络的使用寿命,研究具有通信约束的无线地下传感器网络最佳工作频率选择方法。参考无线地下传感器网络工作模式,划分其节点功能能耗分布模块,给定影响模块的能耗参数。采用离散向量构建参照矩阵,基于网络节点运行情况获取相对位置。以通信约束条件量化网络节点分布区间,建立节点运行线性数学模型,预测无线地下传感器网络运行负载。通过波束成形技术转换能量信号,判断上行与下行能量传输协议,选择无线地下传感器网络节点的最佳工作频率,实现方法设计。实验结果表明:在本文方法下能够快速选择出节点的工作频率,且在不同的噪声条件下可以保证设定的数据吞吐量,具有应用价值。Wireless underground sensor network is mainly used in real-time detection of geological information.It is divided into underground sensor nodes and above-ground receiver nodes,which can transmit detection data to the network system in real time.However,its life cycle is constrained by battery energy.In order to extend the working time of nodes and increase the service life of wireless underground sensor networks,the optimal working frequency selection method of wireless underground sensor networks with communication constraints is studied.According to the working mode of wireless underground sensor network,the node function energy distribution module is divided,and the energy consumption parameters affecting the module are given.Discrete vectors were used to construct reference matrix,and relative positions were obtained based on the operation of network nodes.Based on the communication constraint conditions,the node distribution interval is quantified,and the linear mathematical model of node operation is established to predict the operating load of wireless underground sensor network.The energy signal is converted by beamforming technology,the upstream and downstream energy transmission protocols are judged,and the optimal working frequency of wireless underground sensor network nodes is selected.The experimental results show that the proposed method can quickly select the working frequency of the exit node and ensure the set data throughput under different noise conditions,which has application value.

关 键 词：通信约束 无线地下传感器网络 最佳工作频率 选择方法 实时探测 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置]