农业机械学报2011，Vol.42Issue(3)：184-187,4.
农田图像采集与无线传输系统设计
Design on System of Acquisition and Wireless Transmission for Farmland Image
摘要
Abstract
Based on ZigBee and GPRS, a system was designed to acquire farmland images and transfer the images wirelessly. The system consisted of MESH-type ZigBee network for image acquisition and a remote server which could communicate with the ZigBee network coordinator via GPRS network. The image acquisition based on the V4L technology was introduced first, and the process of JPEG compression and decompression was described, the method of reducing the computational complexity of image compression by the improved discrete cosine transform (DCT) was studied, then how to improve reliability in the data transmission by partitioning and checking image data was discussed. At last, the system was tested in the given field and it proved that the successful rate of farmland image acquisition was 76% . Furthermore, the difference between the theoretical and practical transmission time was analyzed.关键词
农田信息/图像无线传输/联合图像专家组/设计Key words
Farmland information/ Image wireless transmission/ Joint photographic expert group/ Design分类
农业科学引用本文复制引用
熊迎军,沈明霞,孙玉文,徐友,林相泽..农田图像采集与无线传输系统设计[J].农业机械学报,2011,42(3):184-187,4.基金项目
国家高技术研究发展计划(863计划)资助项目(2008AA10Z226) （863计划）
