2006 First International Symposium on Pervasive Computing and Applications最新文献_第4页

Simultaneous Measurements of Strain and Temperature with Dual Fiber Bragg Gratings for Pervasive Computing 普适计算用双光纤光栅应变和温度的同时测量

2006 First International Symposium on Pervasive Computing and Applications Pub Date : 2006-08-01 DOI: 10.1109/SPCA.2006.297530

Tianshu Wang, Yubin Guo, Xiaosu Zhan, Ming Zhao, Ke Wang

{"title":"Simultaneous Measurements of Strain and Temperature with Dual Fiber Bragg Gratings for Pervasive Computing","authors":"Tianshu Wang, Yubin Guo, Xiaosu Zhan, Ming Zhao, Ke Wang","doi":"10.1109/SPCA.2006.297530","DOIUrl":"https://doi.org/10.1109/SPCA.2006.297530","url":null,"abstract":"Smart sensors are the key components of pervasive computing networks. The fiber Bragg grating (FBG) can be composed of the distributed sensing networks for the high sensitivity. The cross-sensitivity is the intrinsic problem of FBG sensors. We analyzed the influence of the measurand-strain (or temperature) effect on temperature (or strain) in fiber-optic sensors that employ FBGs. Based on the mode-coupling theory, equation of fiber Bragg grating and the formula of the cross-sensitivity of strain and temperature were obtained. The physical mechanics of the cross-sensitivity in fiber gratings sensors is described. We show that a sensor scheme consisting of two FBGs gives large discrimination against temperature and strain. The characteristics of the solution with dual-wavelength matrix measuring strain and temperature simultaneously is discussed. The matrix of strain and temperature with wavelength change of dual FBG is explained. The relationship of strain (temperature) with two wavelengths shifts was obtained. By enhancing the FBG s temperature sensitivity or using polymer grating instead of one FBG, the condition number of the matrix of sensitivities can be dropped, so the accuracy of the sensor can be improved. The feasibility of using this type of embedded sensors configuration for simultaneous strain and temperature measurements was demonstrated","PeriodicalId":232800,"journal":{"name":"2006 First International Symposium on Pervasive Computing and Applications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121810087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Time Synchronization Improvement for Wireless Sensor Networks 无线传感器网络时间同步改进

2006 First International Symposium on Pervasive Computing and Applications Pub Date : 2006-08-01 DOI: 10.1109/SPCA.2006.297535

Q. Gao, Baomin Xu

引用次数: 9

A Design of General Multiplier in GF (28) and FPGA Implementation 通用乘法器的设计与FPGA实现

2006 First International Symposium on Pervasive Computing and Applications Pub Date : 2006-08-01 DOI: 10.1109/SPCA.2006.297444

Xiaohui Yang, Z. Dai, Xuerong Yu, Jinhai Su

引用次数: 3

A Low Latency Chord Routing Algorithm for DHT DHT的低延迟弦路由算法

2006 First International Symposium on Pervasive Computing and Applications Pub Date : 2006-08-01 DOI: 10.1109/SPCA.2006.297539

Yi Jiang, Jinyuan You

引用次数: 7

A Real-time Streaming Media File Sharing Mechanism Based on P2P and SIP 一种基于P2P和SIP的实时流媒体文件共享机制

2006 First International Symposium on Pervasive Computing and Applications Pub Date : 2006-08-01 DOI: 10.1109/SPCA.2006.297519

Deguo Yang, Hui Wang, YuHui Zhao, Yuan Gao

引用次数: 2

The Research of Intelligent Routing Strategy based on Multi-Agent Systems 基于多agent系统的智能路由策略研究

2006 First International Symposium on Pervasive Computing and Applications Pub Date : 2006-08-01 DOI: 10.1109/SPCA.2006.297593

Yang Li, Guo Dong Wu, Guo Ping. Zhang, Jun Zhu

引用次数: 0

Context Awareness, the Spirit of Pervasive Computing 上下文感知，普适计算的精神

2006 First International Symposium on Pervasive Computing and Applications Pub Date : 2006-08-01 DOI: 10.1109/SPCA.2006.297456

Yuanchun Shi

{"title":"Context Awareness, the Spirit of Pervasive Computing","authors":"Yuanchun Shi","doi":"10.1109/SPCA.2006.297456","DOIUrl":"https://doi.org/10.1109/SPCA.2006.297456","url":null,"abstract":"Summary form only given. The main ideas of pervasive/ubiquitous computing include 1) the fusion of cyberspace and physical space, 2) the distraction-free computing. Context awareness is the effort for computer systems to sense and leverage the rich context information in the dual space. It has been recognized as a promising approach to reach the goal of invisibility, which can provide attentive service for user. As a basic service in the computing environment, context-aware service is with four basic functions of collecting, storing, reasoning and querying. The reasoning and inosculating module are for formal reasoning module; the context base module provides the function of storing data and querying; the querying and subscribing module gives the non-processing interface for upper application to request context service; the raw data acquiring module acquires the raw data from the sensors and profile files. Not only can the computing framework provide context common service, but it has favorable expansibility and adaptability. And, location-aware computing is a representative research area of context-aware computing. For which we proposed 1) a multi-object-tracking, highly-precise indoor positioning system, Cicada, to acquire the objects' location in smart space, 2) an expeditious and active location-aware service model, which not only to provide rapid location-related query service to applications, but also to offer the active spatial event service. As a showcase, based on the framework of context-aware service, the smart camera man module which is one part of the smart classroom project was ameliorated and satisfying result is retrieved. Smart camera man module implements the function that switching to the most convenient camera view in terms of the shift of the vision focus of smart classroom, which embodies the distraction-free characteristic of smart space apparently","PeriodicalId":232800,"journal":{"name":"2006 First International Symposium on Pervasive Computing and Applications","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115892053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Efficient Role Hierarchy Management for T-RBAC Model T-RBAC模型的高效角色层次管理

2006 First International Symposium on Pervasive Computing and Applications Pub Date : 2006-08-01 DOI: 10.1109/SPCA.2006.297480

Fang Yin, Yuqing Sun, Peng Pan, L. Feng, Qiuliang Xu

引用次数: 1

A Service Oriented Flow Pattern in Pervasive Computing Environments 普适计算环境中面向服务的流模式

2006 First International Symposium on Pervasive Computing and Applications Pub Date : 2006-08-01 DOI: 10.1109/SPCA.2006.297497

Qi Sui, Haiyang Wang

引用次数: 1

A Novel Error-resilient Video Codec Framework Based on Scene-Context Reference Picture 一种新的基于场景-上下文参考图像的容错视频编解码器框架

2006 First International Symposium on Pervasive Computing and Applications Pub Date : 2006-08-01 DOI: 10.1109/SPCA.2006.297516

YuHua Ailz, Wu Ye, Suili Feng, Wenhua Huang, Ming Xie

引用次数: 0