基于ZigBee网络的多摄像头图像数据采集传输方法研究  

Research on multi-camera image data acquisition and transmission method based on ZigBee network

作　　者：朱黎[1] 谭建军[1] 胡涛[1] 钟志峰[2] 徐鹏飞[1] 

机构地区：[1]湖北民族学院信息工程学院,湖北恩施445000 [2]湖北大学计算机与信息学院,湖北武汉430062

出　　处：《微型机与应用》2017年第14期32-34,42,共4页Microcomputer & Its Applications

基　　金：湖北省自然科学基金(2015CFC782);恩施州2016年科技计划项目(XYJ2016000155)

摘　　要：基于ZigBee协议的无线传感器网络(简称ZigBee网络)因其工作环境的特殊要求,在设计时既要考虑电路的体积足够小,又要特别考虑能耗足够小,这就使得ZigBee网络的可用资源十分有限。针对ZigBee网络的低速率(250 KB/s)和极少内存(8 KB)资源的客观条件,用分割法将传感器网络中摄像头拍摄的一幅图像数据切割成每64 B为一个数据段的若干数据段,然后将这些数据段封包并采用"选择路由法"无线传输,当一幅图像数据传输完成后,系统将自动规划新的路由,采集传输下一幅图像数据,直到把ZigBee网络中所有摄像头拍摄的图像数据全部传输完。实验证明,在ZigBee网络中,该多摄像头图像数据采集传输方法采集传输一幅图像大小为320×240的彩色图像仅需要15 s,抗干扰力强,丢包率低,图像效果良好。Due to the special requirements of the working environment, wireless sensor network based on ZigBee protocol should be designed with some performances, such as not only small enough in the hardware circuit size, but also low enough in the energy consumption, which makes the ZigBee network resources are very limited. Based on low bit rate （250 KB/s） and little memory （8 KB） of ZigBee network, a multi-camera data acquisition and transmission method is proposed in this paper. Firstly, image data in the cache of camera is cut into several segments （64 B） using image segmentation algorithm. Then, the segments are encapsulated into packets and transferred in route selecting method, when an image data transfer is completed, the system will automatically plan a new route, collect and transmit the next image, until all the camera images in the ZigBee network transmitting finished. Experiments show that the color image（320 × 240） acquisition and transmis- sion need only 15 seconds. Besides, the method has strong anti-interference, low packet loss rate, and good image effect.

关 键 词：ZIGBEE网络 图像数据 采集 传输 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]