基于WSN的地窖贮藏环境自动监测系统研究

针对我国窖藏环境监测难的问题,设计开发了一套基于无线传感器网络的地窖贮藏环境自动监控系统。该系统能快速、准确地获取影响物品贮藏区的环境参数,并且以无线方式自动上传到服务器终端,实现数据的自动分析、处理、显示、查询、预警和辅助决策等功能。本文从无线传感器网络的系统整体架构、通信机制和监控平台软件给出了详细的设计和实现过程。该系统可靠性高、功能易扩展,适用各种规模化窖藏的用户使用,具有广阔的市场前景和实用价值。     

基于MMA7261的运输包装环境监测系统

本文介绍了加速度传感器MMA7261的工作原理、结构及功能,设计了基于MMA7261三轴加速度传感器的运输包装环境监测系统,详细叙述了该系统的硬件结构、软件设计和应用前景。     

基于ZigBee的车间环境监测系统的设计

为了解决环境恶劣车间内的通信问题,提出了一种基于ZigBee的车间环境监测系统的设计方案。该系统通过ZigBee无线传感器网络自动采集车间生产过程、设备与工作环境等数据,采集到的各种数据通过现场总线实时传送到GIS数据库,再对数据进行统一分析;通过GIS数据库提供车间各设备及监测点的实际物理地址,实现监测点的数据管理、监视及服务。实际应用表明,该系统提高了车间安全监控水平,具有一定的实用性。     

Preface

Networked sensing and control has attracted significant interest in recent years due to its wide applications. For example, sensor networks, especially wireless sensor networks, have found important applications in environmental monitoring, agriculture, building and industrial automation, machine condition monitoring, intelligent transportation systems, health care, surveillance, and defense. On the other hand, due to the flexibility and significant cost-saving, there has been an increasing trend for control systems to utilize digital communication networks for exchanging information between sensor and controller and/or controller and actuator, as well as between subsystems or systems sharing the same communication networks. Furthermore, networked multiagent systems, where the collective behavior of a system is realized through interactions among dynamically decoupled systems, have also been the focus of many recent research efforts. In networked systems, the network is an important component with constraints and uncertainties, such as the limited bandwidth, random transmission-delays, possible packet-losses, out-of-sequence measurements, etc. The uncertainties and constraints become more significant in wireless networks because of its limited resources of communication and computation, and the fading that changes the throughput of communication channels. As a result, there is an imperative need of new tools for analysis and synthesis, and new algorithms for control, estimation and decision-making, to take these uncertainties and constraints into consideration and handle the interplay among communication, computation and control. In the past few years, a lot of research efforts have been devoted to this field and significant advancement has been made. This special issue intends to reflect part of those achievements. Indeed, the special issue consists of 17 papers among which 8 discuss the control over communication networks, 1 investigates the traffic control in communication networks, 3 are concerned with multiagent systems, and 5 deal with wireless sensor networks. All papers were selected from numerous submissions and carefully reviewed.We hope that the special issue will promote the research interest in networked sensing, actuation and control systems, and foster new applications of networked systems. Special issue editors: Lihua Xie, Nanyang Technological University, Singapore. Frank L. Lewis, The University of Texas at Arlington, USA.     

具有多维特征的WSN路由协议研究

为实现不同地理维数数据类型的合理融合,提出一种基于通用搜索树(GiST)的分簇拓扑结构。利用叶节点的位置信息建立簇,通过GiST体系结构算法对区域内的所有簇进行分块组织,建立树形拓扑结构。仿真结果表明,GiST体系结构算法具有良好的多维特性,可快速进行不同维数结构间的融合。建立的结构与其他拓扑结构相比,网络传输效率较高,网络生命周期较长。     

无线环境数据监控系统的设计与开发

针对传统环保监控覆盖面有限、维护成本高等问题,设计了一款基于GPRS无线通信方式的环境数据监控系统.该系统以ARM作为数据监测仪的控制器,采集封装工业现场中与环保相关的数据,并通过GPRS将它们发送到数据源节点;同时在数据源节点对这些数据进行处理和存储,使得它们最后以XML.格式和HTTP-POST方式与上级数据中心实现数据交换.经过在铝型材厂的实践测试,证明该系统稳定可靠,具有很高的推广价值.     

面向环境监测的传感器网络系统设计与实现

传统的环境监测方法存在着成本高、非实时、难以实现等缺点,而新兴无线传感器网络技术具有部署简便、成本低、监测范围大的优点,将其应用到环境监测具有明显的优势。结合项目需求,设计了应用于精细农业的无线传感器网络监控系统。通过试运行证明,该系统运行稳定且功耗低。     

基于ZigBee技术的远端通信站监控系统及其实现

提出了一种基于ZigBee技术的远端通信站环境监控系统设计方案。包括系统结构、Zigbee通信接口、单片微处理器、温度采集等模块的软硬件设计。此方案设计的监测系统已在某远端无人小型频谱监测站使用。     

面向环境监测的无线传感器网络节点设计

环境监测是无线传感器网络的一个重要应用领域。本文介绍了一种基于JN5121-Z01-M01无线微处理器模块的无线传感器网络终端节点的软硬件设计方案。实验证明：节点工作状况良好,整个网络具有较高的可靠性,可以实现对环境振动信息实时、准确的监测;节点硬件具有很强的通用性,只需要适当的扩展就可以实现对温度、光强等其他信息的采集。     

水博会:怡文环境新产品和环境监测整体解决方案技术备受关注

2012年10月29日上午9时30分,中国水博览会暨中国国际膜与水处理技术装备展览会正式在北京国家会议中心拉开了帷幕,吸引了来自20多个国家和地区的逾300家企业参展。在展会现场,环境监测领域的参展企业受到现场观众及媒体的广泛关注。