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IEEE/SICE International Symposium on System Integration

作者： Farouk Ghallabi Akihiro Kawamura Yoonseok Pyo Tokuo Tsuji Ryo Kurazume ENSTA ParisTech 1024 Boulevard des Marechaux 91762 Palaiseau Cedex France

ISBN: (纸本)9781467372435

In this paper, we present a control architecture that enables a service drone to navigate in an informationally structured environment (ISE) and to accomplish a specific service task autonomously based on the ROS-TMS framework. The ROS-TMS is a ROS-based distributed information management system for ISE. It manages a variety of sub-systems ranging from sensing by distributed sensors to motion planning and behavior control for service robots. The proposed architecture is designed as a component of the ROS-TMS, and consists of a navigation system that solves a path planning in ISE and a flight control system by a behavior-based finite state machine. The navigation of the drone is allowed by an optical motion tracking system consisting of distributed infrared cameras managed by the ROS-TMS. A graphical user interface is designed to provide simple manipulation of a service task by a drone. Service experiments have been conducted to validate the performance of the architecture.

关键词： Control Architecture drone honey bees Flight control systems Path planning Behavior Control INFRARED CAMERA distributed sensors motion planning Navigation systems ARCHITECTURE Building construction SUB-SYSTEM

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distributed sensor array for bottom inversion

Distributed sensor array for bottom inversion

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IEEE/OES China Ocean Acoustics Symposium

作者： Sergio M. Jesus Larsys Institute for System and Robotics University of Algarve Campus de Gambelas Faro 8005-139 Portugal

ISBN: (纸本)9781467399791

Seismic inversion with an AUV-based sensor array system is an appealing concept that opens up a number of interesting possibilities but faces also a number of technological and scientific challenges. Among the technological challenges there is the fact that sensor arrays are no longer hardwired to the tow ship and therefore on the fly data monitoring imposes stringent restrictions on the amount of data that can be sent to the support ship. One of the scientific challenges is to determine the optimal sensor array configuration by exploring AUV mobility for inverting the bottom geophysical structure of interest. In fact, the industry standard long planar array and the associated acoustic data processing may not be the setup with the highest performance for each scenario at hand. Generic optimization of sensor distribution through space has been a long standing problem to which there are no closed form solutions. Generically speaking, field diversity maximization is often referred to as a criteria for sensor positioning. This work explores data incoherence as a possible criteria to derive performance of distributed sensor arrays. Additional technological limitations such as array aperture, number of sensors and distances between vehicles impose additional constraints leading to suboptimal configurations. Compressed sensing array processing is used both to explore data incoherence and to offer data reduction for alleviating on the fly monitoring.

关键词： Coherence Acoustics Robot sensing systems Sediments Oceans Sensor arrays Sensor arrays Manipulator sensing systems Acoustics oceans coherence Deposits distributed sensors sensors Array processing incoherence

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Note: Reducing polarization induced sidebands in Rayleigh backscattering spectra for accurate distributed strain measurement using optical frequency-domain reflectometry

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REVIEW OF SCIENTIFIC INSTRUMENTS 2013年第2期84卷 026101-026101页

作者： Ding, Zhenyang Yao, X. Steve Liu, Tiegen Du, Yang Liu, Kun Han, Qun Meng, Zhuo Li, Dingjie Tianjin Univ Coll Precis Instrument & Optoelect Engn Tianjin 300072 Peoples R China Tianjin Univ Key Lab Optoelect Informat Tech Minist Educ Tianjin 300072 Peoples R China Gen Photon Corp Chino CA 91710 USA

We describe a phenomenon called polarization-induced sidebands (PIS) in Rayleigh backscatter spectra (RBS) and discuss its deteriorating effects on the distributed strain measurement using an optical frequency-domain reflectometry. We propose using a special polarization diversity detection scheme to remove PIS and successfully demonstrate accurate distributed strain measurement in the range of 0.75 mu epsilon-225 mu epsilon in a 50 m standard single mode fiber, with a good linearity between the strain and the spectra shift in RBS. (C) 2013 American Institute of Physics. [http://***/10.1063/1.4790472]

关键词： backscatter distributed sensors frequency-domain analysis optical fibre polarisation Rayleigh scattering reflectometry strain measurement

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Minimum Information Loss Fusion in distributed Sensor Networks

Minimum Information Loss Fusion in Distributed Sensor Networ...

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International Conference on Information Fusion

作者： Daniel Clarke Centre for Electronic Warfare Cranfield Defence and Security The Defence Academy of the United Kingdom

ISBN: (纸本)9781509020126

A key assumption of distributed data fusion is that individual nodes have no knowledge of the global network topology and use only information which is available locally. This paper considers the weighted exponential product (WEP) rule as a methodology for conservatively fusing estimates with an unknown degree of correlation between them. We provide a preliminary investigation into how the methodology for selecting the mixing parameter can be used to minimize the information loss in the fused covariance as opposed to reducing the Shannon entropy, and hence maximize the information of the fused covariance. Our results suggest that selecting a mixing parameter which minimizes the information loss ensures that information which is exclusive to the estimates from one source is not lost during the fusion process. These results indicate that minimizing the information loss provides a robust technique for selecting the mixing parameter in WEP fusion.

关键词： information loss Data fusion Sensor networks WEP Fusion reactions Fusion, biological FUSION fusion (melting) distributed sensors Blending

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A Geometric Feature-aided Game Theoretic Approach to Sensor Management

A Geometric Feature-aided Game Theoretic Approach to Sensor ...

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International Conference on Information Fusion

作者： Xiaokun Li Genshe Chen Erik Blasch Jim Patrick Chun Yang Ivan Kadar DCM Research Resources LLC AFRL Sigtem Technology Inc. Interlink Systems Sciences Inc

ISBN: (纸本)9780982443804

Given the single-point node failure limitation of centralized sensor management schemes, decentralized sensor management (DSM) techniques are increasingly important for a simultaneous tracking and identification system. DSM options are realizable with the support of modern systems through increased bandwidth, wireless communication, and enhanced power, but require novel strategies to address constraints imposed by a large number of users Since game theory offers competitive models for distributed allocations of surveillance resources and provides mechanisms to handle the uncertainty of a surveillance area, we propose an agent-based negotiable game theoretic sensor management (ANGSm) approach. By incorporating subgame Nash Equilibrium into negotiation, all agent's needs are considered. With the DSM scheme, sensor assignment occurs locally, and with no central node, DSM reduces the risk of whole-system failures. To make the ANGSm approach more efficient and practical, a geometric feature, the range between a target and a sensor, is also incorporated in the bargaining strategy during sensor assignment. Simulation results of the geometric feature-aided game theoretic (GFGT) approach demonstrate the applicability of the proposed approach.

关键词： distributed sensors Sensor management Agent based negotiation Game theory

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A GREEDY APPROACH TO THE distributed KARHUNEN-LOEVE TRANSFORM

A GREEDY APPROACH TO THE DISTRIBUTED KARHUNEN-LOEVE TRANSFOR...

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IEEE International Conference on Acoustics, Speech, and Signal Processing

作者： Alon Amar Amir Leshem Michael Gastpar Faculty of EEMCS Delft University Delft 2628 CD The Netherlands School of Engineering Bar Ilan University Ramat Gan 52900 Israel Department of EECS University of California Berkeley CA U.S.A.

ISBN: (纸本)9781424442959

In the distributed linear source coding problem a set of distributed sensors observe subsets of a data vector, and provide the fusion center with linearly encoded data. The goal is to determine the encoding matrix of each sensor such that the fusion center reconstructs the entire data vector with minimum mean square error (MSE). The recently proposed local Karhunen Loeve transform (KLT) approach performs this task by optimally determining the encoding matrix of each sensor assuming the other matrices are fixed. This approach is implemented iteratively until convergence is reached. Herein, we propose a greedy-based non-iterative algorithm. In each step, one of the encoding matrices is updated by appending an additional row. The algorithm selects in a greedy fashion one sensor that provides the largest improvement in MSE, and terminates when all the encoding matrices reach their predefined encoded data size. The algorithm can be implemented recursively, and it reduces the complexity from cubic dependency on the data size, using the iterative method, to quadratic dependency. This makes it a prime candidate for on-line and real-time implementations of the distributed KLT. Simulation results show that for many covariance matrix types, the MSE performance of the suggested algorithm is equivalent to the iterative approach.

关键词： Source coding distributed Karhunen Loeve transform principal component analysis source coding encoding matrix Mean square error data size principal components analysis sensors encode data kang-lai-te distributed sensors

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Analysis of White-light Interference distributed Optic Fiber Sensor

Analysis of White-light Interference Distributed Optic Fiber...

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8～(th) Sino-Japanese Joint Meeting on Optical Fibre Science and Electromagnetic Theory

作者： Zhou Xiaojun, Gong Junjie. Liu Yongzhi & Zhou Jianhua (University of Electronic Science and Technology of China, China, Chengdu, 610054)

to the principle of statistic optics, the mutual coherent characteristics of the distributed optic fiber sensor, which based on white-light interference using mode conversion between polarized modes in polarization-maintaining fiber, were analyzed. In this paper, the spatial resolution, maximum sensor fiber length and the resolution of coupling points are given for white-light interference distributed optical fiber sensor.

关键词： distributed sensors spatial resolution polarization-maintaining fiber white-light interference

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distributed Sensor Actuator Network for Antarctic Plants Studies

Distributed Sensor Actuator Network for Antarctic Plants Stu...

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CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)

作者： Krzysztof Herman Patricia Saez Washington Fernandez Leon Bravo Carolina Sanhueza Loreto Gonzalez Mauricio Montanares Sebastian Guajardo Agustin Reyes Alvaro Palma Alonso Saez University of the Bio Bio Concepcion Chile University of Concepcion Concepcion Chile University of the Frontier Temuco Chile

ISBN: (纸本)9781728131863

This paper describes some problems related to design and implementation of a custom sensor actuator network, which is going be applied in the Antarctic studies. The article draws an extensive biological context, describes the details of a biological experiment to be taken and addresses issues related with the environmental and logistics condition in the Antarctic area. The rest of the article describes the design process under certain constrains that originates form the specific methodology and specific place. The case study terminates with a detailed description of a prototype of a generic scalable sensor actuator network based on CAN protocol and results of temperature and humidity data acquisition using contact and contact less sensors.

关键词： actuators biology computing botany controller area networks data acquisition distributed sensors protocols wireless sensor networks distributed sensors biology computing actuators Botany Data Collection Methods protocols Wireless sensor networks Antarctic design process

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A Sensor Actuator Network Architecture with Control Rules

A Sensor Actuator Network Architecture with Control Rules

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International Conference on Networked Sensing Systems

作者： Soko Aoki Yukihiko Kirihara Jin Nakazawa Kazunori Takashio Hideyuki Tokuda Keio University Triple Double Corporation

ISBN: (纸本)9781424463138;9781424463145

This paper presents a Spinning sensors NW middleware which realizes a distributed sensor actuator network and a Sensor Actuator Network Markup Language (SANML) to write the controlling rules of networked sensors and actuators. In the realization of sensor actuator network architecture, the application developer needs to coordinate sensors and actuators in the network and set the control rules of them. We have stated these problems as collaboration of distributed sensors and actuators problem and collaboration description problem. The Spinning sensors NW middleware provides the mechanism to coordinate multiple networked sensors and actuators. The SANML provides a format to express the control rules of sensors and actuators. We implemented an air-conditioning application and networked robot application to test the performance of the middleware and the expressive power of the markup language. This paper overcomes above-mentioned two problems and increase the flexibility and combinations of sensors and actuators.

关键词： actuators sensors Networked sensor symbolic languages Standing Orders Middleware distributed sensors Robot applications application developer NETWORK STRUCTURE Rule

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Cognitive Radio Sensing Architecture and A Sensor Selection Case Study

Cognitive Radio Sensing Architecture and A Sensor Selection ...

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IEEE Vehicular Technology Conference

作者： Chen Sun Yohannes D. Alemseged Ha Nguyen Tran Hiroshi Harada New Generation Wireless Communications Research Center National Institute of Information & Communications Technology (NICT) New Generation Wireless Communications Research Center National Institute of Information & Communications Technology(NICT)

ISBN: (纸本)9781424425167

The function of a cognitive radio system (CRS) can be classified as cognitive engine (CE) and sensing. The CE fulfills spectrum analysis and decision making of spectrum access. The sensing function is realized by either a CR node or distributed spectrum sensors. In this paper, we propose a sensing architecture, which adds new functional entities, sensing controller (SC) and sensing information processor (SIP) inside CE and sensing, respectively. Based on the architecture, we give a use case where sensing is realized by distributed sensors. Selection of these sensors is performed in Rayleigh fading channel to improve the detection performance and save power consumption. Using analytical analysis we prove the benefits of sensor selection. Results show that using energy detection with 5000 symbols in -15 dB signal-to-noise ratio (SNR) environment, we can reduce the false alarm rate from 0.95 to 0.1 while keeping 99% protection to primary users by selecting among ten sensors. Results also show that it is beneficial perform selection based on user channel.

关键词： sensors cerium Building construction ARCHITECTURE false alarm probability distributed sensors Cognitive radio Spectrum Analysis Spectra Power consumption

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