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检索条件"主题词=Area coverage"

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An Efficient area coverage Algorithm using Passive RFID System

An Efficient Area Coverage Algorithm using Passive RFID Syst...

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9th IEEE Sensors Applications Symposium (SAS)

作者： Lee, Sangyup Lee, Choong-Yong Jo, Wonse Kim, Dong-Han Kyung Hee Univ Dept Elect & Radio Engn Yongin South Korea

ISBN: (纸本)9781479921805

This paper proposes an efficient area coverage algorithm for multi-agent robotic systems in the smart floor environment consists of passive RFID system. The passive RFID system used in this research allows to store and read information on an RFID tag, which should be located within the detection range of RF antenna. The location information is explicitly stored in the RFID tag, where the smart floor environment is constructed by laying RFID tags on the floor. Mobile robot equipped with an antenna receives the location information in the RFID tag. Based on this information, the position of mobile robot can be estimated and at the same time, the efficiency of area scanning process can be improved compared to other methods because it provides a scanning trace for other mobile robots. This paper proposes an efficient area coverage algorithm for multi-agent mobile robotic systems using the smart floor environment.

关键词： RFID Passive RFID system area coverage localization smart floor

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Randomized Grid-Based Approach for Complete area coverage in WSN 7

Randomized Grid-Based Approach for Complete Area Coverage in...

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7th IEEE International Advance Computing Conference (IACC)

作者： Dash, Sasmita Nayak, Biraja Prasad Mishra, Bhabani Shankar Prasad Swain, Amulya Ratna KIIT Univ Sch Comp Engn Bhubaneswar India

ISBN: (纸本)9781509015603

Wireless Sensor Network (WSN) mainly composed of number of sensor nodes whose prime responsibility is to sense various events from the surrounding, do the processing on top of it and finally propagate the meaningful information to the observer through multiple intermediate nodes. area coverage is one of the issues in WSN that guarantees the selected active nodes among all the deployed nodes should cover each point of the deployed area. The objective of complete area coverage is to find out redundant nodes and deactivate them, so that the remaining active nodes can cover the deployed area. Among the various existing approaches for area coverage in WSN, a gridbased approach has been proposed that provides a better way to select the active nodes or deactivate the redundant nodes from the grid rather than choosing the nodes from the deployed area. The existing approach goes with certain limitations such as how many numbers of grids need to be made in a certain deployed area with a certain number of nodes and how much percentage of nodes need to be selected from each grid. In order to avoid these limitations, in this paper, we propose a randomized gridbased approach that splits the intended area into small grids depending upon the density of nodes in different location of the deployed area. At the same time, rather than selecting a certain percentage of nodes from each grid, here we select only one node from each grid and repeat the process till selected nodes satisfy the whole area coverage. Matlab simulator is used to study the simulation results of the proposed work, and it is found that the proposed randomized grid-based approach outperforms the existing grid-based approach both with respect to energy as well as throughput.

关键词： Wireless Sensor Network area coverage Voronoi

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Cooperative Positioning/Orientation Control of Mobile Heterogeneous Anisotropic Sensor Networks for area coverage

Cooperative Positioning/Orientation Control of Mobile Hetero...

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IEEE International Conference on Robotics and Automation (ICRA)

作者： Stergiopoulos, Yiannis Tzes, Anthony Univ Patras Dept Elect & Comp Engn Rion 26500 Achaia Greece

ISBN: (纸本)9781479936854

This article examines the coordination problem of the nodes' motion in a heterogeneous anisotropic mobile sensor network for area coverage purposes. The mobile agents are assumed to have non-uniform with varying scaling sensing ability around themselves. The nodes' sensor footprint is allowed to be any arbitrary compact planar set, while the coordination scheme accounts for rotation of the latter. The domain sensed by the swarm is partitioned via the proposed distributed scheme that differentiates for standard Voronoi-alike distance-based metrics. The distributed cooperative scheme developed manages to lead the group towards an area-optimal configuration via proper control of the movement and rotation of each sensing node. Numerical results are provided in order to indicate the efficiency of the proposed technique.

关键词： Distributed optimization area coverage cooperative control heterogeneous swarms non-uniform sensory

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An area coverage Control Protocol Based on Probabilistic coverage for Wireless Sensor Networks 7

An Area Coverage Control Protocol Based on Probabilistic Cov...

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7th International Conference on Intelligent Control and Information Processing (ICICIP)

作者： Tian, Ying Yang, Xiaoqian Ou, Yang You, Guohong Bohai Univ Coll Engn Jinzhou 121000 Peoples R China Bohai Univ Coll Maritime Jinzhou 121000 Peoples R China

ISBN: (纸本)9781509021550

coverage control in high dense wireless sensor network is an important way to make the network more efficient, which can schedule the sensors in active or sleeping state at the right time on the precondition of maintaining the network coverage. Aiming to make the best of redundant coverage of the high dense network, an area control protocol based on probabilistic coverage model is designed. To simplify the area coverage judgment, the area coverage problem is transformed into the several points coverage judgment, an area judging rule is presented base on the previous work. And then, using the promoted judging rule, a node self-schedule scheme is designed, which can turn the sensor into active state or sleep according to the information received from its active neighbors. Comparing with other coverage control protocol, our promoted protocol can maintain the network coverage quality and prolong the network lifetime more efficiently.

关键词： coverage control protocol area coverage probabilistic sensing model wireless sensor networks

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Data Aggregation over Geographical area coverage in Wireless Adhoc and Sensor Networks 6

Data Aggregation over Geographical Area Coverage in Wireless...

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IEEE 6th International Advance Computing Conference (IACC)

作者： Abhilash, C. N. Venkatesh, S. V. Manjula, S. H. Venugopal, K. R. Bangalore Univ UVCE Dept CSE Bengaluru India

ISBN: (纸本)9781467382861

Wireless sensor networks has become envisage for various purpose in all the fields of technology. Random deployments are a fundamental crisis to realize coverage and/or connectivity in sensor networks. Path-Trace-Back protocol is proposed proficiently to preserve the data at specific geographic area coverage in a network with node mobility in nature. This scheme can turn out to be more difficult for isolated places in the area where only low density of sensor nodes exist. To tackle this problem, the path-trace-back scheme, initially permits a mobile node to periodically return the data to fixed location about the trail area coverage whose packets travel from the region of source and utilizes the reported trail to enhance the path revisited. Based on the optimality conditions, we devise the distance based and trail based approach for an explicit area using Path-trace back protocol that shows an enhancement of 80 percent against the distance based and Max Propagation protocol. The result obtained achieves higher performance when the region of coverage area is less connected.

关键词： area coverage Network Lifetime Wireless Sensor Networks

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Grid Based Mobile Sensor Node Deployment for Improving area coverage in Wireless Sensor Networks 3

Grid Based Mobile Sensor Node Deployment for Improving Area ...

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3rd International Conference on Signal Processing Communication and Networking

作者： Rakavi, A. Manikandan, M. S. K. Hariharan, K. Thiagarajar Coll Engn Dept ECE Madurai Tamil Nadu India

ISBN: (纸本)9781467368230

The coverage of sensing field is one among many noteworthy phase at the designing of Wireless Sensor Networks (WSN). The coverage concern in WSNs depends on a number of aspects like topology of the network, sensing mode of sensors and most considerably is deployment. This methodology permits us to locate the sensor nodes in our field of interest which refers to the preferred field of coverage. A novel methodology for deployment of Hybrid sensor nodes has been proposed in this work. Hybrid implies that, this algorithm includes both static and mobile nodes. In order to triumph over the hurdle of coverage, mobile sensor nodes get included to the previously deployed stationary nodes. A well-structured method of sensor node deployment namely, grid deployment technique is proposed in this work which would generate supreme utilization of the covered area. The complete atmospheric region is partitioned into a number of individual grids along with which the weight value of each grid is estimated. Target grid of any mobile node will be the one which possesses the minimum weightage value among all grids. The coverage ratio is the performance parameter evaluated in order to estimate the precision of the proposed method. The ultimate result of coverage is found to be getting enhanced swiftly along with the increase in number of sensor nodes. When compared with the previously given deployment methodologies, this work has privileged performance in terms of coverage. Added advantages include lower value of computational cost.

关键词： Wireless Sensor Networks area coverage Mobile sensor node deployment Mobility network lifetime

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Alien vs. Mobile User Game: Fast and Efficient area coverage in Crowdsensing 6

Alien vs. Mobile User Game: Fast and Efficient Area Coverage...

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6th International Conference on Mobile Computing, Applications and Services (MobiCASE)

作者： Talasiia, Manoop Curtmoia, Reza Borcea, Cristian New Jersey Inst Technol Dept Comp Sci Newark NJ 07102 USA

ISBN: (纸本)9781631900242

Mobile crowdsensing enables real-time sensing of the physical world. However, providing uniform sensing coverage of an entire area may prove difficult. It is possible to collect a disproportionate amount of data from very popular regions in the area, while the unpopular regions remain uncovered. To address this problem, we propose a model for collecting crowdsensing data based on incentivizing smart phone users to play sensing games, which provide in-game incentives to convince participants to cover all the regions of a target area. We designed and implemented a first person shooter sensing game, "Alien vs. Mobile User", which employs techniques to attract users to unpopular regions. Our prototype Android game collects WiFi data to create a campus coverage map. The results from a user study show that mobile gaming ensures high coverage, and we observe that the proposed game design succeeds in achieving good player engagement. Furthermore, we compare three strategies for area coverage in terms of coverage time and coverage effort for users. The simulation results demonstrate that Progressive Movement is the best strategy because it manages to quickly entice users from popular regions to unpopular ones with a reasonable coverage effort.

关键词： computer games mobile computing smart phones Android game WiFi data collection alien vs. mobile user game area coverage campus coverage map coverage effort coverage time in-game incentives mobile crowdsensing person shooter sensing game progressive movement smart phone Sensors Smartphone Computer Games area coverage Mobile Computing coverage Foreigners Game theory Sensors Hunting Game animals Consumers Video Games automatic game Mobile Fasting

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Territorial Marking for Improved area coverage in Anti-Flocking-Controlled Mobile Sensor Networks

Territorial Marking for Improved Area Coverage in Anti-Flock...

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IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Ganganath, Nuwan Yuan, Wanmai Cheng, Chi-Tsun Fernando, Tyrone Iu, Herbert H. C. Hong Kong Polytech Univ Dept Elect & Informat Engn Hong Kong Hong Kong Peoples R China Univ Western Australia Sch Elect Elect & Comp Engn Crawley WA Australia Harbin Inst Technol Sch Elect & Informat Engn Harbin Heilongjiang Peoples R China

ISBN: (纸本)9781538648810

Recently proposed distributed anti-flocking algorithms have enabled mobile sensor networks (MSNs) to deliver impressive area coverage performances. However, due to lack of information about each other's traverse history, mobile sensor nodes tend to travel extra distances to achieve 100%cumulative area coverage. Inspired by the territorial marking behaviour of solitary animals, this paper proposes a new information map and map updating methods for anti-flocking controlled MSNs. The proposed territorial marking anti-flocking control enables MSNs to achieve improved area coverage performances by encouraging nodes to remain in a part of the terrain. According to the results provided in this paper, the proposed algorithm can be more energy efficient for MSNs in continues monitoring applications.

关键词： Mobile sensor networks territorial marking anti-flocking area coverage distributed control

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A Virtual Force based Movement Scheme for area coverage in Directional Sensor Networks 10

A Virtual Force based Movement Scheme for Area Coverage in D...

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10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP)

作者： Liang, Chiu-Kuo Chung, Cheng-Yen Li, Chuan-Feng Chung Hua Univ Dept Comp Sci & Informat Engn Hsinchu Taiwan

ISBN: (纸本)9781479953905

A directional sensor network is composed of many directional sensor nodes. Unlike conventional omni-directional sensors that always have an omni-angle of sensing range, directional sensors may have a limited angle of sensing range due to technical constraints or cost considerations. area coverage is still an essential issue in a directional sensor network. In this paper, we study the area coverage problem in directional sensor networks with mobile sensors, which can move to the coverage holes to get better coverage ratio. In order to increase the coverage ratio, each sensor will move from overlapped regions to coverage holes after random deployment. The movements of sensors are adjusted round-by-round so that the coverage ratio is gradually improved. To guide the moving direction of each sensor, we introduce a virtual forces based coverage algorithm for directional sensor networks. Our proposed scheme consists of four different forces caused by neighboring sensors and uncovered regions in the field. By applying the resultant force from these four different forces to directional sensors, coverage holes are eliminated quickly. Simulation results show the effectiveness of our scheme in term of the coverage improvement.

关键词： directional sensors mobile sensors area coverage

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Global and Local area coverage Path Planner for a Reconfigurable Robot

Global and Local Area Coverage Path Planner for a Reconfigur...

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IEEE Congress on Evolutionary Computation (CEC)

作者： Samarakoon, S. M. Bhagya P. Muthugala, M. A. Viraj J. Elara, Mohan Rajesh Singapore Univ Tech & Design Engn Prod Dev Pillar Singapore Singapore

ISBN: (数字)9781665467087

ISBN: (纸本)9781665467087

area coverage is essential for robots used in cleaning, painting, and exploration applications. Reconfigurable robots have been introduced to solve the area coverage limitation of fixed-shape robots. The existing global coverage algorithms of reconfigurable robots are limited to consideration of a limited set of predefined shapes for the reconfiguration and do not consider the exact geometrical shape of obstacles. Therefore, degraded coverage performance could be observed from the existing methods. On the other hand, the coverage methods that consider reconfiguring beyond a limited set of predefined shapes are limited to local coverage. Furthermore, these methods only consider a single reconfiguration for the coverage. Therefore, this paper proposes a novel coverage method for a reconfigurable robot consisting of both global and local path planners. The global path planner uses boustrophedon motion combined with the A* algorithm. The optimum grid positioning that maximizes the global coverage is determined through a Genetic Algorithm (GA). The local coverage planner performs continuous reconfiguration of the robot to adequately cover obstacle zones while navigating through narrow spaces without collisions. A GA is used to determine the reconfiguration parameters of the robot at each instance of the local coverage. Simulation results confirm that the proposed method is effective in performing both global and local coverage path planning for improving the area coverage performance.

关键词： Path planing area coverage Genetic algorithm Reconfigurable robotics

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