摘要
针对工业应用背景,探索433MHz下的MANET设计与实现。采用了平面结构的网络拓扑和分层的网络协议栈结构。以STC12系列单片机和n RF905为核心射频芯片,构建了低功耗、通用性强网络节点。MAC层协议采用优化的CSMA/CA,降低了网络碰撞。对DSR路由算法进行了优化和改进,有效抑制了广播风暴,提了网络吞吐率。模拟了工业应用场景,提供了温度的采集、继电器和指示灯控制的实现。最终设计实现的MANET功能完善、性能优秀,有广泛的应用前景。
According to the industrial application background, the design and implementation of MANET under 433 MHz is explored. Network topology and layered network protocol stack structure with planar structure. With STC12 Series MCU and n RF905 as the core of the RF chip, low power consumption, strong network node. MAC layer protocol uses the optimized CSMA/CA, reduces the network collision. The DSR routing algorithm is optimized and improved, which effectively inhibits the broadcast storm and improves the network throughput. Simulated the industrial application scenarios, provided the temperature acquisition, the relay and the indicator light control realization. The final design and implementation of the MANET function, excellent performance, has a wide range of application prospects.
作者
吴磊
袁宗胜
WU Lei, YUAN Zong-sheng （Computer Institution, North China University o f Technology, Beijing 100144, China）
出处
《电脑知识与技术》
2016年第5期226-229,232,共5页
Computer Knowledge and Technology
基金
北京市自然科学基金资助项目（4131001）
中央支持地方专项（PXM2014_014212_000097）
北京市属高等学校创新团队建设与教师职业发展计划项目（IDHT20130502）
北方工业大学优势学科项目
