2013 IEEE Sensors Applications Symposium Proceedings最新文献_第4页

Embedded electronics for a mussel-based biological sensor 贻贝生物传感器的嵌入式电子器件

2013 IEEE Sensors Applications Symposium Proceedings Pub Date : 2013-04-04 DOI: 10.1109/SAS.2013.6493575

H. D. Taylor, A. Kruger, J. Niemeier

引用次数: 9

Encryption in mobile devices using sensors 使用传感器的移动设备加密

2013 IEEE Sensors Applications Symposium Proceedings Pub Date : 2013-04-04 DOI: 10.1109/SAS.2013.6493556

Joy Bose, T. Arif

引用次数: 3

Low power multiply accumulate unit (MAC) for future Wireless Sensor Networks 未来无线传感器网络的低功耗多重累积单元(MAC)

2013 IEEE Sensors Applications Symposium Proceedings Pub Date : 2013-04-04 DOI: 10.1109/SAS.2013.6493571

A. Abdelgawad

{"title":"Low power multiply accumulate unit (MAC) for future Wireless Sensor Networks","authors":"A. Abdelgawad","doi":"10.1109/SAS.2013.6493571","DOIUrl":"https://doi.org/10.1109/SAS.2013.6493571","url":null,"abstract":"Wireless Sensor Network (WSN) presents significant challenges for the application of distributed signal processing and distributed control. These systems will challenge us to apply appropriate techniques to construct capable processing units with sensing nodes considering energy constraints. Digital Signal Processing (DSP) is one of the capable processing units, but it is not commonly used in WSN because of the power constraint. The Multiply-Accumulate Unit (MAC) is the main computational kernel in DSP architectures. The MAC unit determines the power and the speed of the overall system; it always lies in the critical path. Developing high speed and low power MAC is crucial to use DSP in the future WSN. In this work, a fast and low power MAC Unit is proposed. The proposed architecture is based on examination of the critical delays and hardware complexities of merged MAC architectures to design a unit with a low critical path delay and low hardware complexity. The new architecture reduces the hardware complexity of the summation network, thus reduces the overall power. Increasing the speed of operation is achieved by feeding the bits of the accumulated operand into the summation tree before the final adder instead of going through the entire summation network. The ASIC implementation of the proposed 32-bit MAC unit saves 5.5% of the area, 9% of the energy, and reduces the delay by 13% compared to the regular merged MAC unit.","PeriodicalId":309610,"journal":{"name":"2013 IEEE Sensors Applications Symposium Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125785201","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: 21

Protocol design for airdropping meteorological parameters measurement network 空投气象参数测量网方案设计

2013 IEEE Sensors Applications Symposium Proceedings Pub Date : 2013-04-04 DOI: 10.1109/SAS.2013.6493563

Fangling Pu, Fangli Chen, Zongyang Liu, H. Sun, Xin Xu

引用次数: 0

On redundancy identification in randomly deployed WSNs, another perspective 从另一个角度研究随机部署wsn的冗余识别

2013 IEEE Sensors Applications Symposium Proceedings Pub Date : 2013-04-04 DOI: 10.1109/SAS.2013.6493551

L. P. Damuut, Dongbing Gu

{"title":"On redundancy identification in randomly deployed WSNs, another perspective","authors":"L. P. Damuut, Dongbing Gu","doi":"10.1109/SAS.2013.6493551","DOIUrl":"https://doi.org/10.1109/SAS.2013.6493551","url":null,"abstract":"Redundancy in Wireless Sensor Networks (WSNs) is often considered a positive development to ensure message reinforcement, increased network reliability and fault-tolerance, among many other quality of service (QoS) concerns. In certain applications of WSNs however, the negative impact of redundancy on the network could outweigh the aforementioned positive considerations. Random deployment of sensors inevitably leads to the occurrences of redundancy in the network with serious consequences (e.g., network congestion and energy wastage). In order to address the challenges posed by redundant nodes on the network, it is of prime importance to first of all, identify the redundant nodes from the network. In this paper, the concept of redundancy in wireless sensor networks and its identification are examined. Specifically, we employed the use of a modified version of Low Energy Adaptive Clustering Hierarchy (LEACH) algorithm to identify physically redundant nodes in a randomly deployed wireless sensor network. Simulation results reveal a proportional relationship between redundant nodes and the number of nodes required to keep the network functional. This relationship is equally maintained as the network's lifespan advances (i.e., some nodes begin to die out).","PeriodicalId":309610,"journal":{"name":"2013 IEEE Sensors Applications Symposium Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117104674","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: 8

Power supply energy optimization for ultra low-power wireless sensor nodes 超低功耗无线传感器节点电源能量优化

2013 IEEE Sensors Applications Symposium Proceedings Pub Date : 2013-04-04 DOI: 10.1109/SAS.2013.6493581

M. Tanevski, A. Boegli, P. Farine

{"title":"Power supply energy optimization for ultra low-power wireless sensor nodes","authors":"M. Tanevski, A. Boegli, P. Farine","doi":"10.1109/SAS.2013.6493581","DOIUrl":"https://doi.org/10.1109/SAS.2013.6493581","url":null,"abstract":"The wireless sensor nodes are most energy-efficient when they operate at the minimal operating voltage. The nominal voltage of the batteries used is often significantly higher. This paper analyzes DC-DC power conversion from the point of view of ultra low-power wireless sensor nodes. Using a modified circuit of a suitable commercial DC-DC converter and a supercapacitor, this paper shows that it is possible to extend battery lifetime of a wireless sensor node for certain spectrum of applications. The efficiency of the DC-DC conversion as well as supercapacitor charge-discharge efficiency have been analyzed and measured. The influence of battery discharge currents and leakage currents is also presented. Furthermore, in this paper, we outline the specifications of a module needed between the battery and the sensor node that will be controlled by the node's MCU and will keep the node operating at minimal operational voltage while at the same time maximizing the energy delivered from the battery to the node. Thus, this paper also aims at setting foundations for future development of an energy-optimization module for ultra low power wireless sensor nodes.","PeriodicalId":309610,"journal":{"name":"2013 IEEE Sensors Applications Symposium Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114559717","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: 9

Smartphone based localization solution for construction site management 基于智能手机的施工现场管理本地化解决方案

2013 IEEE Sensors Applications Symposium Proceedings Pub Date : 2013-04-04 DOI: 10.1109/SAS.2013.6493554

C. De Dominicis, A. Depari, A. Flammini, S. Rinaldi, E. Sisinni

{"title":"Smartphone based localization solution for construction site management","authors":"C. De Dominicis, A. Depari, A. Flammini, S. Rinaldi, E. Sisinni","doi":"10.1109/SAS.2013.6493554","DOIUrl":"https://doi.org/10.1109/SAS.2013.6493554","url":null,"abstract":"Managing a large building construction site is a really complex task. Nowadays, many controllers have to daily check the site collecting information in order to inform managers about the construction progress. Recently, several software applications, compatible and integrated in most of commercial CAD tools, have been developed to help managers in collecting information. These tools furnish the managers on-site access to technical documentation, but are standalone tool very poorly connected with the site infrastructure. For this reason, some proposals have been suggested in literature to enable real-time data collection about site status exploiting communication facilities (e.g. wireless sensor networks). The work discussed in this paper extends this approach including localization-aware and task-aware mobile computing based on the use of smartphones and tablets. These devices natively offer intuitive and user-friendly interfaces, dramatically reducing time in personnel training. In particular, ranging and localization techniques on most diffused smart platforms have been successfully tested, also by means of external hardware plugins.","PeriodicalId":309610,"journal":{"name":"2013 IEEE Sensors Applications Symposium Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133626962","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: 23

Automated sensor for flowering and vegetative budburst 开花和营养芽自动传感器

2013 IEEE Sensors Applications Symposium Proceedings Pub Date : 2013-04-04 DOI: 10.1109/SAS.2013.6493576

Guanduo Li, A. Kruger, J. Niemeier, H. Lintz

引用次数: 1

Analysis of bonding failure in CMOS MEMS chips CMOS MEMS芯片的键合失效分析

2013 IEEE Sensors Applications Symposium Proceedings Pub Date : 2013-04-04 DOI: 10.1109/SAS.2013.6493573

John Ojur Dennis, F. Ahmad, M. Haris Md Khir, N. H. Hamid

{"title":"Analysis of bonding failure in CMOS MEMS chips","authors":"John Ojur Dennis, F. Ahmad, M. Haris Md Khir, N. H. Hamid","doi":"10.1109/SAS.2013.6493573","DOIUrl":"https://doi.org/10.1109/SAS.2013.6493573","url":null,"abstract":"During post processing of MEMS chips in deep reactive ion etching (DRIE), fluorine containing gases are used to remove the final passivation layers from the top of the bonding aluminum pad area. These gases contaminate the bonding pads and hinder effective wire-bonding onto the pads. This paper is a comparative analysis of bonding pad cleaning of CMOS MEMS chips by three plasma cleaning methods: argon plasma, oxygen plasma using AS201 microwave plasma Asher and oxygen plasma using SS110A DRIE equipment (Tegal). The effectiveness of the chip cleaning method is then analyzed using Energy dispersive X-ray (EDX) spectroscopy to investigate elemental percentage on the pads before and after cleaning. EDX results indicate that Argon plasma cleaning process is the preferable pad cleaning method as it effectively removes the fluorine contaminants from the bonding pads without eroding the top aluminium (metal 3) on the pad. The oxidation level of the aluminium as a result of cleaning is also very low as compared to the other cleaning methods. Finally, a few of the pads cleaned by argon plasma method were successfully bonded using a manual Ball-Wedge wire bonder Model 7700E.","PeriodicalId":309610,"journal":{"name":"2013 IEEE Sensors Applications Symposium Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121721332","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

Spectral unmixing of three-algae mixtures using hyperspectral images 利用高光谱图像对三藻混合物进行光谱分解

2013 IEEE Sensors Applications Symposium Proceedings Pub Date : 2013-04-04 DOI: 10.1109/SAS.2013.6493565

M. Mehrubeoglu, P. Zimba, L. McLauchlan, Ming Yang Teng

引用次数: 3