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作 者:冯立波[1] 潘丽静[1] 左国超[1] 杨润标[1] 罗桂兰[1] 张梅[1]
机构地区:[1]大理学院数学与计算机学院,云南大理671003
出 处:《中国农机化学报》2014年第6期254-258,共5页Journal of Chinese Agricultural Mechanization
基 金:云南省教育厅科学研究基金项目资助(2012C065);云南省科技厅应用基础研究资助项目(2010ZC142)
摘 要:农业信息化发展水平已经成为衡量一个国家和地区现代化水平和综合国力的重要标志。物联网技术的出现为农业信息化的发展提供了重要支撑。无线传感器网络是物联网的核心技术,而传感器网络和TD-SCDMA网络属于异构网络,两者的通信协议、数据格式和网络结构存在较大差异。网关处于无线传感器网络和TD-SCDMA网络中间,文章从硬件和软件两个方面对网关进行需求分析,设计了网关的模块结构,并在测试系统中对时延和丢包率两个参量进行了性能测试。仿真结果表明,网关的时延和丢包率能够较好的满足异构网络之间的传输要求,其传输性能比较稳定。The development level of agricultural information is an important indicator to measure the modernization of countries and regions and the overall national strength.The emergence of Internet of Things technology has provided an important support for the agricultural development of information technology.Wireless sensor network is the core technology.Sensor networks and TD-SCDMA network belong to heterogeneous network,their communication protocols,data formats and network structures are quite different.Gateway is in the intermediate of wireless sensor networks and TD-SCDMA network.The hardware and software requirements were analyzed,the gateway module structure was designed,and the performance testing of latency and packet loss rate were conducted.The gateway delay and packet loss rate can better meet the transmission requirements between heterogeneous networks;the transmission performance is relatively stable.
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