Description: 在社会信息化的推动下，作为其核心的数字化技术已步入研究开发阶段。为了实现粮库的温湿度自动检测，提高粮库储粮的安全性是粮库管理实现自动化、智能化。我们提出基于ZigBee多点粮库温湿度检测的方案。为此论文开展于无线传感器网络技术的温湿度数据采集系统的研制工作。ZigBee无线传感器网络是一种新兴的传输技术，将其应用于室内温度和湿度的采集，进而构成无线温湿度采集系统。论文介绍了无线传感器网络系统的体系结构及关键技术。-In society, driven by information technology, as part of its core digital technology has entered a stage of research and development. Depot in order to achieve automatic detection of the temperature and humidity to enhance the security of grain storage grain depot management is automated, intelligent. ZigBee Based on our multi-point detection of grain temperature and humidity program. Carried out for this thesis in the wireless sensor network technology, temperature and humidity data acquisition system development. ZigBee wireless sensor networks is a new transmission technology, will be applied to the indoor temperature and humidity of the collection, which constitutes a collection system of wireless temperature and humidity. This paper introduces wireless sensor network system architecture and key technologies. Platform: |
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Author:hithdjsj |
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Description: A wireless sensor network may comprise thousands of sensor nodes. Each sensor node has a sensing
capability as well as limited energy supply, compute power, memory and communication ability. Besides military applications, wireless sensor networks may be used to monitor microclimates and wildlife habitats [56], the structural integrity of bridges and buildings, building security, location of valuable assets (via sensors placed on these valuable assets), traffic, and so on. However, realizing the full potential of wireless sensor networks poses myriad research challenges ranging from hardware and architectural issues, to programming languages and operating systems for sensor networks, to security concerns, to algorithms for sensor network deployment, operation and management. Iyengar and Brooks [26, 27] and Culler and Hong [12] provide good overviews of the breadth of sensor network research topics as well as of applications for sensor networks. Platform: |
Size: 205824 |
Author:ahmad |
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Description: Wireless Sensor Networks (WSNs) have attracted much attention in recent years. The potential applications of WSNs
are immense. They are used for collecting, storing and sharing sensed data. WSNs have been used for various applica-
tions including habitat monitoring, agriculture, nuclear reactor control, security and tactical surveillance. The WSN
system developed in this paper is for use in precision agriculture applications, where real time data of climatologically
and other environmental properties are sensed and control decisions are taken based on it to modify them. The architec-
ture of a WSN system comprises of a set of sensor nodes and a base station that communicate with each other and
gather local information to make global decisions about the physical environment. The sensor network is based on the
IEEE 802.15.4 standard and two topologies for this application. -Wireless Sensor Networks (WSNs) have attracted much attention in recent years. The potential applications of WSNs
are immense. They are used for collecting, storing and sharing sensed data. WSNs have been used for various applica-
tions including habitat monitoring, agriculture, nuclear reactor control, security and tactical surveillance. The WSN
system developed in this paper is for use in precision agriculture applications, where real time data of climatologically
and other environmental properties are sensed and control decisions are taken based on it to modify them. The architec-
ture of a WSN system comprises of a set of sensor nodes and a base station that communicate with each other and
gather local information to make global decisions about the physical environment. The sensor network is based on the
IEEE 802.15.4 standard and two topologies for this application. Platform: |
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Author:eng |
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Description: In this presentation, Various security threats face by routing protocols in wireless sensor network is presented. Platform: |
Size: 87040 |
Author:mian jan |
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Description: Wireless Sensor Networks (WSN) are becoming popular day by day,
however one of the main issue in WSN is its limited resources. We
have to look to the resources to create Message Authentication Code
(MAC) keeping in mind the feasibility of technique used for the
sensor network at hand. This research work investigates different
cryptographic techniques such as symmetric key cryptography and
asymmetric key cryptography. Furthermore, it compares different
encryption techniques such as stream cipher (RC4), block cipher
(RC2, RC5, RC6 etc) and hashing techniques (MD2, MD4, MD5,
SHA, SHA1 etc). The result of our work provides efficient
techniques for communicating device, by selecting different
comparison matrices i.e. energy consumption, processing time,
memory and expenses that satisfies both the security and restricted
resources in WSN environment to create MAC. Platform: |
Size: 747520 |
Author:zu |
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Description: Wireless Sensor Networks (WSN) have recently been in the limelight for many domains. WSN are useful in data collection, event detection or entity tracking applications. The characteristics of sensor networks have imposed various restrictions on their system designs. Since sensor nodes usually are developed by low-cost hardware, one major challenge in the development of many sensor-network applications
is to provide high-security features with limited resources. In this paper, we propose a path generation framework with deadline considerations for real-time query processing.
To meet the deadline, the framework will assign the time budget to the routing path, and then, derive a feasible path with the assigned time budget. Platform: |
Size: 323584 |
Author:ufon |
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Description: 针对大型建筑物复杂环境室内定位的特殊性，为了克服移动终端采用WLAN或无
线传感器网络单独定位精度不高的局限性，实现移动终端精确定位导航,提出了根据终端位
置环境同时搜索WLAN和无线传感器网络，采用改进后的网络融合定位算法，可以为用户
提供高精度、高概率和高保密性的定位业务。-For large buildings in the complex environment of indoor positioning particularity, in order to overcome the mobile terminal using WLAN or wireless sensor network alone is not high positioning accuracy limitations, to achieve precise positioning and navigation mobile terminal is proposed to simultaneously search and WLAN wireless sensor environment based on terminal location network, using the improved network fusion location algorithm can provide users with high-precision, high-probability and high-security location services. Platform: |
Size: 302080 |
Author:施瞎忙 |
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Description: Smart home is a house that uses technology to monitor the environment with the help of various sensors, control the electrical appliances and communicate the outer world. Now-a-days the demand for home automation systems in homes and offices are invariably increasing. The home automation system is a key for energy conservation that can be equipped in normal buildings. As there are many benefits of wireless technology over wired, most of the home automation systems are based on the WSN technology. In this paper we present the design and implementation of a smart home based on LabVIEW using wireless sensor network system. The system can monitor the temperature, light, fire & burglar alarm of the house and have infrared sensor to guarantees the family security. The monitored data is automatically stored into an excel file. The system can be connected to internet to monitor the security of home anywhere in the world.-Smart home is a house that uses technology to monitor the environment with the help of various sensors, control the electrical appliances and communicate the outer world. Now-a-days the demand for home automation systems in homes and offices are invariably increasing. The home automation system is a key for energy conservation that can be equipped in normal buildings. As there are many benefits of wireless technology over wired, most of the home automation systems are based on the WSN technology. In this paper we present the design and implementation of a smart home based on LabVIEW using wireless sensor network system. The system can monitor the temperature, light, fire & burglar alarm of the house and have infrared sensor to guarantees the family security. The monitored data is automatically stored into an excel file. The system can be connected to internet to monitor the security of home anywhere in the world. Platform: |
Size: 490496 |
Author:ImranKhan |
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Description: iphone开发进阶
iPhone OS
Cocoa Touch
o 窗口和视图
o 事件管理
o 用户接口
o 加速传感器
o 照相机
Media
o Core Graphics 2维图形接口
o Core Animation 动画
o OpenGL
o Core Audio 声音
o OpenAL
o Media Player MPEG4,MP3
Core Services
o Address Book
o Core Foundation
o Core Location
o CFNetwork http,https,ftp,SSL,TLS
o 网络安全
o SQLite SQL数据库
o XML
Core OS
o 多线程
o 网络应用 BSDA套接字
o 文件系统
o Bonjour 利用无线网络连接其他机器-iPhone OS
Cocoa Touch
o windows and views
o Event Management
o User Interface
o Acceleration Sensor
o Camera
Media
o Core Graphics 2-dimensional graphics interface
o Core Animation animation
o OpenGL
o Core Audio sound
o OpenAL
o Media Player MPEG4, MP3
Core Services
o Address Book
o Core Foundation
o Core Location
o CFNetwork http, https, ftp, SSL, TLS
o Network Security
o SQLite SQL
o XML
Core OS
o Multithreading
o Network Application BSDA sockets
o File System
o Bonjour other machines using a wireless network connection Platform: |
Size: 484352 |
Author:roseye |
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Description: Wireless Sensor Networks (WSN) is vulnerable to node capture attacks in which an attacker can capture one or
more sensor nodes and reveal all stored security information which enables him to compromise a part of the
WSN communications. Due to large number of sensor nodes and lack of information about deployment and
hardware capabilities of sensor node, key management in wireless sensor networks has become a complex task.
Limited memory resources and energy constraints are the other issues of key management in WSN. Hence an
efficient key management scheme is necessary which reduces the impact of node capture attacks and consume
less energy. In this study, we develop a cluster based technique for key management in wireless sensor network. Platform: |
Size: 145408 |
Author:senthil |
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Description: In wireless sensor network，cluster algorithm of nodes is all effective approach and key technology to implement energy saving and flexible management．To improve security and lifetime of clustering network，a secure clustering was pro— posed based on the random and parallel cluster header election algorithm and pre—distributed key scheme．In hypothetical network model Platform: |
Size: 15360 |
Author:mojtaba |
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Search - wireless sensor network security