基于无线传感网技术的智能图像传输系统  

Intelligent image transmission system based on wireless sensor network technology

作　　者：林阳 张雪凡[1] 孙苗 何理旭 Lin Yang;Zhang Xuefan;Sun Miao;He Lixu(Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Shanghai University,Shanghai 200072,China)

机构地区：[1]上海大学特种光纤与光接入网重点实验室,上海200072

出　　处：《电子测量技术》2022年第8期155-160,共6页Electronic Measurement Technology

基　　金：国家自然科学基金(61871261)项目资助。

摘　　要：针对无4G信号、布线困难、无人值守的偏远山区输电线路监测,无线传输一直存在困难,对于数据量较大的图像数据更难。本文设计并实现了一种高压输电线路监测的智能无线图像传感器网络传输系统,运用嵌入式研发技术和无线传感网技术实现图像传输。在传统的无线传感网基础上,针对图像数据大,通信过程中容易引起干扰,设计了依据接收端信号强度RSSI值进行自适应数据分包协议;为了优化传输路由和增加传输系统的冗余性,设计了智能路由传输协议。实验测试和仿真结果表明,自适应数据分包协议能根据不同的误码率大小自适应调整分包数,减少重传的概率,从而提高传输效率;智能动态路由传输协议可以快速找到最近的4G信号节点,节省传输时间和能量损耗,其中的跳传功能在减少传输时间的同时,增加了传输系统的冗余性,达到设计目的。Wireless transmission has always been difficult for unattended transmission line monitoring in remote mountainous areas without 4G signal wiring, and it is even more difficult for image data with large data volume. This paper designs and implements an intelligent wireless image sensor network transmission system for high voltage transmission line monitoring, using the research and development of embedded technology and wireless sensor network technology to realize image transmission.on the basis of the traditional wireless sensor network, aiming at the large image data and easy to cause interference in the communication process, an adaptive data subcontracting protocol is designed according to the RSSI value of the receiving end signal strength;In order to optimize the transmission routing and increase the redundancy of the transmission system, an intelligent routing transmission protocol is designed. Experimental test and simulation results show that the adaptive data subcontracting protocol can adjust the subcontracting number adaptively according to different bit error rates, which reduces the probability of retransmission and improves transmission efficiency;The intelligent dynamic routing transmission protocol can quickly find the nearest 4G signal node, saving transmission time and energy loss. The hopping function reduces the transmission time and increases the redundancy of the transmission system, so as to achieve the design purpose.

关 键 词：无线图像传输 线型传感网 信号场强RSSI 智能路由协议 

分 类 号：TN929[电子电信—通信与信息系统]