共查询到19条相似文献,搜索用时 93 毫秒
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基于ZigBee网络传输中涉及的ZigBee地址、路由算法等问题,本文探讨了ZigBee地址分配机制、ZigBee路由表、ZigBee路由发现机制,对于目前应用较多的ZigBee路由算法进行了详细的阐述。本文的研究可以为ZigBee具体网络应用提供科学参考。 相似文献
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为了提高ZigBee与Wi-Fi共存时的工作效率, 以ZigBee的吞吐量为评估标准, 对不同空闲信道评估模式对ZigBee与Wi-Fi共存的影响进行了研究。实验结果表明, 在不同的情况下选择合适的空闲信道评估模式能够提高ZigBee的性能。 相似文献
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杨斌 《计算机工程与设计》2010,31(11)
ZigBee是一种新兴的无线传感网络标准,由于功耗、成本较低得到广泛应用.为研究ZigBee标准的安全性,分析了ZigBee标准协议栈体系结构,并对其定义的信任中·(trustcenter,TC)和所采用安全机制进行了分析.ZigBee信任中心有住宅模式与商业模式两种安全模式,定义了比较完整的加密和认证方法.ZigBee安全机制采用基于AES-128算法的CCM*操作模式,有多种安全方案,因此,ZigBee标准是一种比较安全的无线传感网络标准. 相似文献
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针对电子货架标签存在的问题,提出一种有效缓解ZigBee网络通讯压力的方案,以ATmega256rfr2为ZigBee网络节点,以ATSAM4E16E为ZigBee到以太网的网关,构建一个ZigBee网络和Internet结合的数据传输网络,极大地减少了数据发送过程中的冲突碰撞,确保系统的正常运行。 相似文献
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ZigBee在电力系统温度测量中的应用 总被引:2,自引:0,他引:2
ZigBee网络为传感器信号的无线传输提供了新的解决方案,论文分析了ZigBee技术,IEEE802.15.4标准及相关应用,将ZigBee与蜂窝网络结构结合,用于电力系统高压母线温度测量系统中,得到了良好的效果. 相似文献
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韩啸 《数字社区&智能家居》2014,(8):5180-5181
该文介绍了ZigBee技术特点及其优势,分析说明了ZigBee协议栈及ZigBee自组织网络通信方式,最后展望了ZigBee技术的应用前景。 相似文献
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韩啸 《数字社区&智能家居》2014,(22):5180-5181
该文介绍了ZigBee技术特点及其优势,分析说明了ZigBee协议栈及ZigBee自组织网络通信方式,最后展望了ZigBee技术的应用前景。 相似文献
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Chia-Ming Wu Ruay-Shiung Chang Pu-I Lee Jei-Hsiang Yen 《The Journal of supercomputing》2013,65(1):136-153
ZigBee networks based on the IEEE 802.15.4 standard are designed for wireless sensor and control networks with low-cost, low-power consumption, and low-data rate. To join in a ZigBee network with the tree topology, the hardware requirement of a device is simple and low threshold. However, a device may become an isolated node due to constraints of configuration parameters in the ZigBee network. To decrease isolated nodes, we propose an approach called Enhanced Connectivity Scheme for the ZigBee network. This scheme can efficiently reconstruct parts of the network to let more devices join, and hence increase the join ratio. Experimental results show that our method can efficiently improve the connectivity of ZigBee networks. In this paper, we also propose a swapping method to extend the life of the ZigBee network. The objective of swapping is to balance the energy consumption of the nodes. Experimental results show that the swapping scheme can increase the life of the network compared to the ZigBee standard operation by 50%. We provide an innovative solution for increasing connectivity and life of the network to ZigBee designs. 相似文献
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设计一套基于ZigBee和GSM远程无线控制系统,对农田里的滴灌系统进行远程控制。设计了上位机和农田中的ZigBee协调器,ZigBee协调器与ZigBee终端传输消息来对灌溉系统进行安全有效的控制。采用适合于ZigBee星型网络的时间同步算法,满足ZigBee节点的同步休眠与唤醒的需要。设计相应的电磁阀控制策略对电磁阀进行安全有效的控制。 相似文献
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在分析了ZigBee网络层各项关键技术的基础上,深入研究了ZigBee路由协议,并通过网络仿真器NS-2对其性能进行了仿真,仿真结果显示采用Cluster-Tree和AODVjr(Ad-hoc On-Demand distance Vector junior routing)相结合的ZigBee路由协议在ZigBee网络中具有较好的性能。 相似文献
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Kuang-Yow Lian Sung-Jung Hsiao Wen-Tsai Sung 《Journal of Network and Computer Applications》2013,36(2):756-767
Data transmission network integration is one of the most difficult problems to solve in wireless sensor network systems. ZigBee and Wi-Fi belong to different network protocols. If a network system must use both ZigBee and Wi-Fi at the same time to transmit data a considerable challenge is presented. This paper introduces a novel hardware method that integrates ZigBee and Wi-Fi. The proposed method is based on the Arduino wearable module ZigBee and Ethernet concept. This study builds an intelligent home appliance control system using the ZigBee network. This intelligent control system uses an integrated ZigBee and Wi-Fi network architecture in the house. Our study sends the ZigBee sensor messages to a cloud database through the TCP/IP protocol network containing the physical network and wireless network device lines. Control management access is achieved using smart phones. The proposed method is very simple and easy to implement using Arduino circuits. The effectiveness of the proposed method is verified by the simulation and experimental results. The hardware components include the Arduino controller, XBee Series 2 wireless communication module and end device sensors. The Android and Java programming languages are used to write the smart phone and Server recognition programs. 相似文献