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A Wireless Sensor Network for Monitoring Water Treatment 用于水处理监测的无线传感器网络
2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007) Pub Date : 2007-10-14 DOI: 10.1109/SENSORCOMM.2007.15
J. Hayes, K. Lau, D. Diamond
{"title":"A Wireless Sensor Network for Monitoring Water Treatment","authors":"J. Hayes, K. Lau, D. Diamond","doi":"10.1109/SENSORCOMM.2007.15","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.15","url":null,"abstract":"We outline an application of a wireless sensor network for monitoring a common water treatment process. The network is based on the Teco uPart wireless platform and uses a flowcell. The water treatment process involves the oxidization of contaminants in water and can be monitored using spectrophotometric methods. The reaction conditions such as temperature, light level, contaminant concentration, concentration of reagent and catalyst can all be monitored using specific sensors. The wireless sensor network was configured in a simple star topology configuration with the base-station acting as the central hub. The data was collected, stored and then analysed. The hardware consists of a pump, a fluidic chamber and several sensor nodes to monitor the colour change in the liquid. The colour change in the channel housing chamber and in the bulk solution was monitored separately. Sensor nodes are also used to monitor the ambient conditions such as light level and temperature. An experiment was carried out which demonstrates the efficacy of using wireless sensing for the monitoring of water purification treatments.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121784887","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: 11
Design and Implementation of a Real-Time Wireless Sensor Network 实时无线传感器网络的设计与实现
2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007) Pub Date : 2007-10-14 DOI: 10.1109/SENSORCOMM.2007.42
J. Afonso, H. R. Silva, P. M. Oliveira, J. Correia, L. Rocha
{"title":"Design and Implementation of a Real-Time Wireless Sensor Network","authors":"J. Afonso, H. R. Silva, P. M. Oliveira, J. Correia, L. Rocha","doi":"10.1109/SENSORCOMM.2007.42","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.42","url":null,"abstract":"This paper describes the development of wireless sensor network prototype that gathers biometrical data and posture information from several wearable sensor networks and sends it in real-time to a personal computer where the information is monitored and stored. The wireless sensor network is based on a low power real-time MAC protocol that was designed and implemented in the MICAz platform. This paper also presents some analytical results and several experimental results regarding the behavior of the developed system.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115172465","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: 7
Two-Phase Stochastic Optimization to Sensor Network Localization 传感器网络定位的两相随机优化
2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007) Pub Date : 2007-10-14 DOI: 10.1109/SENSORCOMM.2007.101
M. Marks, E. Niewiadomska-Szynkiewicz
{"title":"Two-Phase Stochastic Optimization to Sensor Network Localization","authors":"M. Marks, E. Niewiadomska-Szynkiewicz","doi":"10.1109/SENSORCOMM.2007.101","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.101","url":null,"abstract":"In this paper we describe a novel approach to sensor network localization, i.e., two-phase algorithms based on simulated annealing and genetic algorithm. The numerical results presented and discussed in the final part of the paper show that these novel schemes give accurate and consistent location estimates of the nodes in the network. The performance is better and speed is faster than that of the semidefinite programming (SDP) and one-phase simulated annealing (SA).","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126937842","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: 39
Passive Remote Triggering the Activity Cycle of a Wireless Sensor Node: A Method to Adapt the Use of Energy of the Node to the Application 被动远程触发无线传感器节点的活动周期:一种使节点能量使用适应应用的方法
2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007) Pub Date : 2007-10-14 DOI: 10.1109/SENSORCOMM.2007.78
C. Gonzalez, J. Jiménez-Leube
{"title":"Passive Remote Triggering the Activity Cycle of a Wireless Sensor Node: A Method to Adapt the Use of Energy of the Node to the Application","authors":"C. Gonzalez, J. Jiménez-Leube","doi":"10.1109/SENSORCOMM.2007.78","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.78","url":null,"abstract":"A passive short-range remote triggered mode of operation for ultra-low power wireless sensor devices is proposed. When a triggering signal or coded sequence is detected, the node is enabled from sleep mode, which it is kept on standby in order to save energy. After a trigger command is received, the node turns on its power-consuming elements. The triggering schemes studied are based on passive circuits that allow ultra-low power operation in standby mode. The trigger detector is made up of two basic elements: a passive tuned filter and an active detector that converts the trigger signal to baseband. The active part of the circuit is a low power comparator that awakens the microcontroller unit of the node when it toggles its output. Two trigger schemes are presented: (a) a low frequency (LF-125 kHz) near field communications (NFC) link and (b) a RF frequency (868 MHz ISM band) link.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128274659","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: 1
Co-Ordinated Adaptive Power (CAP) Managemet for Wireless Sensor Networks 无线传感器网络协调自适应功率(CAP)管理
2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007) Pub Date : 2007-10-14 DOI: 10.1109/SENSORCOMM.2007.33
G. Joshi, P. Ranjan
{"title":"Co-Ordinated Adaptive Power (CAP) Managemet for Wireless Sensor Networks","authors":"G. Joshi, P. Ranjan","doi":"10.1109/SENSORCOMM.2007.33","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.33","url":null,"abstract":"In order to have energy optimized sensor nodes a low power hardware design is the basic requirement, on that low power device applying sleep scheduling algorithms further energy savings can be achieved. CAP i.e.co-ordinated adaptive power management is a technique which is applied during active periods of the sensor nodes so that energy consumption is further reduced and lifetime can be increased. CAP management is used to save energy consumption of processing unit and communication unit of a sensor node in a co-ordinated manner. Both of these units are dynamically adapted to a particular operating mode that depends on the workload of the node. Co-ordinating computational and communication unit together gives better power optimization by removing the need for multiple hardware interfaces and by having a centralized power management unit. This kind of coordination also reduces the possibility of packet loss due to limited buffer sizes.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128377077","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: 2
Collaborative Localization in Wireless Sensor Networks 无线传感器网络中的协同定位
2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007) Pub Date : 2007-10-14 DOI: 10.1109/SENSORCOMM.2007.36
L.M. Pestana Leao de Brito, L. Peralta
{"title":"Collaborative Localization in Wireless Sensor Networks","authors":"L.M. Pestana Leao de Brito, L. Peralta","doi":"10.1109/SENSORCOMM.2007.36","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.36","url":null,"abstract":"Determining the localization of nodes in a Wireless Sensor Network is a very important task, which involves collaboration between nodes. Localization is a fundamental service since it is relevant to many applications and to the network main functions. Collaboration is essential to self-localization, so that localization can be accomplished by the nodes themselves, without any human intervention. In this paper, we first analyze the key aspects that have to be considered when designing or choosing a solution for the localization problem. Then, we present the types of current localization algorithms, making a broad comparison among the most relevant algorithms. With this comparative analysis, we aim at identifying a more complete algorithm able to adapt itself to a wide variety of possibilities (number and density of nodes, obstacles and terrain irregularities, network topology, node mobility, etc.).","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130232928","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: 13
ScatterEditor: An Eclipse based Tool for Programming, Testing and Managing Wireless Sensor Networks ScatterEditor:一个基于Eclipse的编程、测试和管理无线传感器网络的工具
2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007) Pub Date : 2007-10-14 DOI: 10.1109/SENSORCOMM.2007.87
M. A. Al Saad, Jintao Ding, J. Schiller
{"title":"ScatterEditor: An Eclipse based Tool for Programming, Testing and Managing Wireless Sensor Networks","authors":"M. A. Al Saad, Jintao Ding, J. Schiller","doi":"10.1109/SENSORCOMM.2007.87","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.87","url":null,"abstract":"ScatterEditor is an Eclipse-based tool for the WSN platform ScatterWeb with a plug-in oriented architecture. The already deployed Embedded Sensor Boards (ESBs) can be configured, controlled and monitored over-the-air at the same time that the ESBs are programmed and tested. This is made possible by the combination of plug-ins for ScatterEditor. Furthermore ScatterEditor offers the possibility of Over-the-air software updates on the ESBs. These features can be used locally or remotely, over the internet, due to ScatterEditor's internet integration. Apart from the interconnection between IP and ScatterWeb, the focus of ScatterEditor lies with the aspect of human-computer interfaces for WSN. ScatterEditor provides the opportunity to test and discover different characteristics and properties of WSN illustratively and interactively. The plug-in oriented architecture encourages the enhancement of the tool, when new questions concerning WSN arise. ScatterEditor is based wholly on open source components, which are available at no extra cost.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132641366","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: 7
Active Laplacian Electrode to Enhance Surface EEnG Recordings 有源拉普拉斯电极增强表面脑电图记录
2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007) Pub Date : 2007-10-14 DOI: 10.1109/SENSORCOMM.2007.18
G. Prats-Boluda, J. Garcia-Casado, J. L. Martinez-de-Juan, Y. Ye
{"title":"Active Laplacian Electrode to Enhance Surface EEnG Recordings","authors":"G. Prats-Boluda, J. Garcia-Casado, J. L. Martinez-de-Juan, Y. Ye","doi":"10.1109/SENSORCOMM.2007.18","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.18","url":null,"abstract":"The electroenterogram (EEnG) is the surface recording of the myoelectrical activity of the smooth muscle layer of the small intestine. Surface EEnG recordings in humans present many problems such as the low amplitude of the signals and the presence of physiological processes such as ECG and respiration. The aim of this study is to develop an active sensor to enhance the quality of the abdominal surface signals obtained by passive bipolar recordings. Moreover, this sensor could improve the approximation to the surface Laplacian of the electroenterogram signal given by applying Hjorth 's five point approximation method. The sensor is made up by two parts. A set of three concentric ring electrodes in bipolar configuration (TCB) and a signal conditioning amplifier, which amplifies and high-pass filters the signals. This sensor has been made by using printed circuit boards and SMT technology. Two recording sessions were carried out in two healthy subjects. The results show that in the signal given by the TCB electrode the ECG interference is highly attenuated compared to bipolar recordings. Furthermore Laplacian TCB signals contain the information concerning to the SW component of the EEnG (9.7plusmn0.7 and 9.8plusmn0.8 cpm) reducing the influence of respiration compared to bipolar surface recording channels and to the discrete Laplacian approximation.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128798890","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: 1
Multispectral Structures for Imaging Applications 成像应用的多光谱结构
2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007) Pub Date : 2007-10-14 DOI: 10.1109/SENSORCOMM.2007.66
M. Vieira, A. Fantoni, M. Fernandes, P. Louro
{"title":"Multispectral Structures for Imaging Applications","authors":"M. Vieira, A. Fantoni, M. Fernandes, P. Louro","doi":"10.1109/SENSORCOMM.2007.66","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.66","url":null,"abstract":"Results on the optimization of an pinpii 'n type a- Si:H based three color detector with voltage controlled spectral sensitivity are presented. The sensor element consists of a glass/ITO/p-i-n a-SiC:H multilayer structure which faces the incident illumination, followed by a-SiC:H(-p)/a-SiC:H(-i)/Si:H(-i ')/SiC:H (- n ')/ITO heterostructure, that allows the optically addressed readout. Results show that this approach leads to regionally different collection parameters resulting in multispectral photodiodes, coding for red (R), blue (B), and two green (G) components. In the polychromatic operation mode different sensitivity ranges are selected by switching between different biases so that the basic colors can be resolved with a single device. Positive bias is needed under blue irradiation and moderated reverse bias under green. The threshold voltage between green and red sensitivity depends on the thickness of the bottom a-SiC:H (-i) layer, and corresponds to the complete confinement of the absorbed green photons across the pinpin sequence. The various design parameters are discussed and supported by a 2D numerical simulation.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130950877","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: 0
Improvement of Counter-based Broadcasting by Random Assessment Delay Extension for Wireless Sensor Networks 随机评估时延扩展改进无线传感器网络中基于计数器的广播
2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007) Pub Date : 2007-10-14 DOI: 10.1109/SENSORCOMM.2007.59
S. Izumi, Takashi Matsuda, H. Kawaguchi, C. Ohta, M. Yoshimoto
{"title":"Improvement of Counter-based Broadcasting by Random Assessment Delay Extension for Wireless Sensor Networks","authors":"S. Izumi, Takashi Matsuda, H. Kawaguchi, C. Ohta, M. Yoshimoto","doi":"10.1109/SENSORCOMM.2007.59","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.59","url":null,"abstract":"Broadcasting is an elementary operation in wireless multi-hop networks. Flooding is a simple broadcast protocol but it causes serious redundancy, contention and collisions. Probability based methods are promising because they can reduce broadcast messages at the cost of slight additional hardware and without any control. In this paper, the counter-based scheme which is one of the probability based methods is focused on as a broadcast protocol, and the RAD (random assessment delay) extension is proposed to improve the original. The RAD extension can be realized by the almost same hardware as the original, so that the strength of the counter-based scheme is kept. Simulation results showed that the RAD extension can reduce the number of retransmitting nodes by about 10% compared with the original scheme.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134111299","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: 10
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