Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757065
J. Gomez, G. Brooker
Despite imaging techniques such as tomography and synthetic aperture having been developed more than three decades ago, they have not been fully exploited within the robotics community for gathering cross-section information of indoor environments. In this paper we propose a methodology for incorporating these concepts in multi-robot applications taking advantage of some recent developments in UWB technology.
{"title":"Opportunities for imaging in distributed robotics applications with ultra-wideband radars","authors":"J. Gomez, G. Brooker","doi":"10.1109/ICSENST.2008.4757065","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757065","url":null,"abstract":"Despite imaging techniques such as tomography and synthetic aperture having been developed more than three decades ago, they have not been fully exploited within the robotics community for gathering cross-section information of indoor environments. In this paper we propose a methodology for incorporating these concepts in multi-robot applications taking advantage of some recent developments in UWB technology.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"148 1","pages":"15-20"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75961244","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}
Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757118
Chen Chen, Qiushi Han, Fuxue Zhang
This paper describes the scaling effect on the micro-machined gas-pendulum dual-axis tilt sensor from two aspects, microscale gas flow and microsystem technology, based on the design, fabrication and capability of the sensor; detailedly founds the theory model and analysis method of the sensor miniaturization in every stage whose demarcation points are 0.25 mum and 0.5 mum; simulates the gas flow in the continuous medium hypothesis. This paper analyses the effect of surface-area-to-volume ratio increase, surface roughness, viscous force etc on the gas flow of the micro sensor. This paper computes tests and experiments the residual stress of the electrodes and multilayer films of this sensor, puts forward the method to eliminate residual stress, solves the problem that films break off in the process of chip fabrication. The harvest of this paper is very important to farther micromation and improving capability of micro-machined gas-pendulum dual-axis tilt sensors.
{"title":"Scaling effect research on micro-machined gas-pendulum dual-axis tilt sensors","authors":"Chen Chen, Qiushi Han, Fuxue Zhang","doi":"10.1109/ICSENST.2008.4757118","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757118","url":null,"abstract":"This paper describes the scaling effect on the micro-machined gas-pendulum dual-axis tilt sensor from two aspects, microscale gas flow and microsystem technology, based on the design, fabrication and capability of the sensor; detailedly founds the theory model and analysis method of the sensor miniaturization in every stage whose demarcation points are 0.25 mum and 0.5 mum; simulates the gas flow in the continuous medium hypothesis. This paper analyses the effect of surface-area-to-volume ratio increase, surface roughness, viscous force etc on the gas flow of the micro sensor. This paper computes tests and experiments the residual stress of the electrodes and multilayer films of this sensor, puts forward the method to eliminate residual stress, solves the problem that films break off in the process of chip fabrication. The harvest of this paper is very important to farther micromation and improving capability of micro-machined gas-pendulum dual-axis tilt sensors.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"129 1","pages":"301-306"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77251733","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}
Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757183
A. Girard, O. de Sagazan, F. le Bihan, T. Mohammed‐Brahim, F. Geneste, P. Brissot, C. Guguen-Guillouzo
Suspended-gate FETs, namely SGFET, with sub-micron gap are used to detect electrically transferrin concentration directly without any labelling. The fabrication of the device and the process to functionnalize it, so that it will be able to detect transferrin, are given. The feasibility of the detection is demonstrated and a range of detectable concentrations is determined. Concentration, as low as 100 ng/mL, is measured. The maximum concentration in the linear regime, 5 mug/mL, is under the range of the standard clinical techniques. The fabrication of the device is compatible with usual microelectronic tools. Its functionalization can be easily implemented in any chemical environment. Present results open the way to simultaneous detection of many proteins giving in real time indication on complicated biologic functions as liver metabolism.
{"title":"Electrical detection of very low content of transferrin in view of iron metabolism characterization","authors":"A. Girard, O. de Sagazan, F. le Bihan, T. Mohammed‐Brahim, F. Geneste, P. Brissot, C. Guguen-Guillouzo","doi":"10.1109/ICSENST.2008.4757183","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757183","url":null,"abstract":"Suspended-gate FETs, namely SGFET, with sub-micron gap are used to detect electrically transferrin concentration directly without any labelling. The fabrication of the device and the process to functionnalize it, so that it will be able to detect transferrin, are given. The feasibility of the detection is demonstrated and a range of detectable concentrations is determined. Concentration, as low as 100 ng/mL, is measured. The maximum concentration in the linear regime, 5 mug/mL, is under the range of the standard clinical techniques. The fabrication of the device is compatible with usual microelectronic tools. Its functionalization can be easily implemented in any chemical environment. Present results open the way to simultaneous detection of many proteins giving in real time indication on complicated biologic functions as liver metabolism.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"4 1","pages":"637-641"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81067801","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}
Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757184
C. Gooneratne, M. Iwahara, M. Kakikawa, Sotoshi Yamada, A. Kurnicki, S. Mukhopadhyay
During hyperthermia therapy for cancer treatment magnetic fluid is injected into the tumor. Hyperthermia therapy exploits the fact that cancer cells are more sensitive to heat than healthy cells. Generally all parameters except the magnetic fluid weight density are known in the specific heat equation which governs the heat given in hyperthermia therapy to destroy cancer cells. Hence, accurate estimation of magnetic fluid weight density inside the body is critical for successful treatment. A unique needle-type GMR sensor is fabricated for inserting into the body in a low-invasive way. This paper presents analytical analysis and experimental results obtained by estimating magnetic fluid weight density in large cavities by the fabricated needle-type GMR sensor.
{"title":"Magnetic fluid weight density estimation in large cavities by a needle-type GMR sensor","authors":"C. Gooneratne, M. Iwahara, M. Kakikawa, Sotoshi Yamada, A. Kurnicki, S. Mukhopadhyay","doi":"10.1109/ICSENST.2008.4757184","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757184","url":null,"abstract":"During hyperthermia therapy for cancer treatment magnetic fluid is injected into the tumor. Hyperthermia therapy exploits the fact that cancer cells are more sensitive to heat than healthy cells. Generally all parameters except the magnetic fluid weight density are known in the specific heat equation which governs the heat given in hyperthermia therapy to destroy cancer cells. Hence, accurate estimation of magnetic fluid weight density inside the body is critical for successful treatment. A unique needle-type GMR sensor is fabricated for inserting into the body in a low-invasive way. This paper presents analytical analysis and experimental results obtained by estimating magnetic fluid weight density in large cavities by the fabricated needle-type GMR sensor.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"9 1","pages":"642-647"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79084615","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}
Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757129
Seokhyoung Lee, I. Song, V. Shin
This paper is focused on two fusion estimation algorithms weighted by matrices and scalars. Relationship between them is theoretically established. We present two fast algorithms addressing computation of matrix weights that arise in multidimensional estimation problems. The first algorithm is based on the Cholesky factorization. And since determination of the optimal matrix weights in real-time applications is not practical, we propose the second algorithm based on approximate calculations using special approximation for cross-covariances. Analysis of computational complexity of the both fast fusion algorithms is proposed. Examples demonstrating low-computational complexity of the fast fusion algorithms are given.
{"title":"Low complexity fusion estimation algorithms in multisensor environment","authors":"Seokhyoung Lee, I. Song, V. Shin","doi":"10.1109/ICSENST.2008.4757129","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757129","url":null,"abstract":"This paper is focused on two fusion estimation algorithms weighted by matrices and scalars. Relationship between them is theoretically established. We present two fast algorithms addressing computation of matrix weights that arise in multidimensional estimation problems. The first algorithm is based on the Cholesky factorization. And since determination of the optimal matrix weights in real-time applications is not practical, we propose the second algorithm based on approximate calculations using special approximation for cross-covariances. Analysis of computational complexity of the both fast fusion algorithms is proposed. Examples demonstrating low-computational complexity of the fast fusion algorithms are given.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"212 1","pages":"364-369"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79453072","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}
Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757156
W. Yoo, D. Cho, K. Jang, S. Shin, J. Seo, Soon-Cheol Chung, G. Tack, Bongsoo Lee, B. Park, J. Moon, Sin Kim
In this study, we have developed a non-contact temperature sensor using a silver halide optical fiber for medical endoscopic usage. We have measured an infrared radiation which is transferred by a silver halide optical fiber from a heat source using a thermal optical power-meter and a thermopile sensor. To increase the amount of infrared radiation through the silver halide optical fiber and to the infrared sensors, optical devices such as an infrared collimator and a focusing lens are used. The relationships between the temperatures of a heat source and the measured output signals are determined. The measurable temperature range of a fiber-optic temperature sensor is from 30 to 60degC. It is expected that a non-contact temperature sensor using an infrared optical fiber can be developed for medical and industrial usages based on the results of this study.
{"title":"Infrared fiber-optic sensor for non-contact temperature measurements","authors":"W. Yoo, D. Cho, K. Jang, S. Shin, J. Seo, Soon-Cheol Chung, G. Tack, Bongsoo Lee, B. Park, J. Moon, Sin Kim","doi":"10.1109/ICSENST.2008.4757156","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757156","url":null,"abstract":"In this study, we have developed a non-contact temperature sensor using a silver halide optical fiber for medical endoscopic usage. We have measured an infrared radiation which is transferred by a silver halide optical fiber from a heat source using a thermal optical power-meter and a thermopile sensor. To increase the amount of infrared radiation through the silver halide optical fiber and to the infrared sensors, optical devices such as an infrared collimator and a focusing lens are used. The relationships between the temperatures of a heat source and the measured output signals are determined. The measurable temperature range of a fiber-optic temperature sensor is from 30 to 60degC. It is expected that a non-contact temperature sensor using an infrared optical fiber can be developed for medical and industrial usages based on the results of this study.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"10 1","pages":"500-503"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82144687","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}
Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757161
Yi-Shiang Ou Yang, Wen-Ching Lee, T. Ke, Chia-Ping Wei, Chin-Cheng Lee
The effectiveness of ECG monitors can be significantly impaired by motion artefact, which can cause misdiagnoses, lead to inappropriate treatment decisions, and trigger false alarms. However, it is difficult to separate the noise from bio-signal due to its frequency spectrum overlapping that of the ECG. In this paper, we developed a wireless multi-sensor device for physiological signal monitoring, without any constraint of the belt. The device is attached to the belly. The skin temperature, ambulatory ECG, and respiration can be measured at the same time and shown via PC. The designed and implemented portable ECG recorder using accelerometer based on motion artefact removal technique was demonstrated for tele-homecare or ambulatory ECG monitoring.
{"title":"Adaptive reduction of motion artefact in wireless physiological monitoring microsystems","authors":"Yi-Shiang Ou Yang, Wen-Ching Lee, T. Ke, Chia-Ping Wei, Chin-Cheng Lee","doi":"10.1109/ICSENST.2008.4757161","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757161","url":null,"abstract":"The effectiveness of ECG monitors can be significantly impaired by motion artefact, which can cause misdiagnoses, lead to inappropriate treatment decisions, and trigger false alarms. However, it is difficult to separate the noise from bio-signal due to its frequency spectrum overlapping that of the ECG. In this paper, we developed a wireless multi-sensor device for physiological signal monitoring, without any constraint of the belt. The device is attached to the belly. The skin temperature, ambulatory ECG, and respiration can be measured at the same time and shown via PC. The designed and implemented portable ECG recorder using accelerometer based on motion artefact removal technique was demonstrated for tele-homecare or ambulatory ECG monitoring.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"17 1","pages":"523-526"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90341619","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}
Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757092
A. Fuchs, H. Zangl, D. Watzenig, P. Dollfuss
This paper describes the development of a gas-solid flow measurement setup based on an optical method to determine the particle velocity in granular material flow. Main aim of the setup is to provide students a substantiated practical knowledge in the fields of pneumatic conveying of bulk solids and the measurement of gaseous and particulate velocities in two-phase flows. The impact of sensor position on the measurement results is demonstrated in this paper.
{"title":"Vision-based particle velocity measurement in granular gas-solid flows with special focus on knowledge transfer","authors":"A. Fuchs, H. Zangl, D. Watzenig, P. Dollfuss","doi":"10.1109/ICSENST.2008.4757092","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757092","url":null,"abstract":"This paper describes the development of a gas-solid flow measurement setup based on an optical method to determine the particle velocity in granular material flow. Main aim of the setup is to provide students a substantiated practical knowledge in the fields of pneumatic conveying of bulk solids and the measurement of gaseous and particulate velocities in two-phase flows. The impact of sensor position on the measurement results is demonstrated in this paper.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"4 1","pages":"158-161"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89624274","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}
Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757082
M. N. Al-Ameen
To efficiently manage the sensor networks the topology of the entire network has to be discovered by the monitoring node. In this paper a topology discovery algorithm for sensor networks has been described. The algorithm finds a set of distinguished nodes, using whose neighborhood information the approximate topology of the network is constructed. Only these distinguished nodes reply back to the topology discovery probes. These nodes logically organize the network in the form of clusters comprising nodes in their neighborhood. Topology discovery algorithms form a tree of clusters rooted at the monitoring node, which initiates the topology discovery process. This organization is used for efficient data dissemination and aggregation, duty cycle assignment and fault tolerance of the network system. The unpredictable behaviors of sensor networks have made it a vital point that how the operational nodes will be managed when a node in the network fails. In this paper fault tolerance mechanisms for sensor networks have been described for clustered response approach on considering different scenarios that may come to consideration when a node fails; thus ensuring maximum connectivity among operational nodes after the failure of the node. The mechanism explains how the information packets transmitted to the faulty node can be cached by an operational node. After being repaired the faulty node is reinstalled to operational state and the mechanisms of getting the repaired node connected to the network have been described in this paper. Reverse traverse mechanism has been described in this paper as a part of fault tolerance mechanisms, which ensures that the number of clusters is not increased when a faulty node is repaired and re-connected to the network. The mechanisms described in this paper are distributed and highly scalable.
{"title":"A clustered response mechanism to discover the topology of wireless sensor networks with an application to network management at faulty and operational state of nodes","authors":"M. N. Al-Ameen","doi":"10.1109/ICSENST.2008.4757082","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757082","url":null,"abstract":"To efficiently manage the sensor networks the topology of the entire network has to be discovered by the monitoring node. In this paper a topology discovery algorithm for sensor networks has been described. The algorithm finds a set of distinguished nodes, using whose neighborhood information the approximate topology of the network is constructed. Only these distinguished nodes reply back to the topology discovery probes. These nodes logically organize the network in the form of clusters comprising nodes in their neighborhood. Topology discovery algorithms form a tree of clusters rooted at the monitoring node, which initiates the topology discovery process. This organization is used for efficient data dissemination and aggregation, duty cycle assignment and fault tolerance of the network system. The unpredictable behaviors of sensor networks have made it a vital point that how the operational nodes will be managed when a node in the network fails. In this paper fault tolerance mechanisms for sensor networks have been described for clustered response approach on considering different scenarios that may come to consideration when a node fails; thus ensuring maximum connectivity among operational nodes after the failure of the node. The mechanism explains how the information packets transmitted to the faulty node can be cached by an operational node. After being repaired the faulty node is reinstalled to operational state and the mechanisms of getting the repaired node connected to the network have been described in this paper. Reverse traverse mechanism has been described in this paper as a part of fault tolerance mechanisms, which ensures that the number of clusters is not increased when a faulty node is repaired and re-connected to the network. The mechanisms described in this paper are distributed and highly scalable.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"26 1","pages":"98-106"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89630043","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}
Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757098
V. Iyer, R. Murthy, M. Srinivas, B. Hochet
Distributed wireless sensor applications are useful for visualizing spatially and geographically related data such as location, neighborhood, weather, and measuring specific changes in the environment. Desires to augment these interfaces with additional specifications needed for distributed applications such as Power-Aware, Fault-tolerance and Processor agnostic deployment requirements have led to create a custom distributed Network Embedded Test-Bed that locally aggregate the measured signal from individual sensors and send it to a central coordinator for combined processing. We envision publishing and querying real-time (e.g. from sensors) over such distributed sensor farm applications which are deployed wirelessly and form a large sensor network. Existing solutions, although useful for writing the simple applications mentioned above, have several drawbacks in achieving this vision. First, publishing even a single stream of data as a useful service is a non-trivial task. Much useful data is not being stored yet because the need for managing a sensor farm has lots of complexities which make them unreliable in terms of polling time and communications costs. Second, existing applications are mutually incompatible and are processor centric and needs many ports which may introduce un-reliability. Third communication costs are not scalable to handle a sensor farm application and it does not provide an easy way to extend such a Network Embedded Test-Bed. The Network Embedded Test-Bed project aims to address these challenges, we like to model existing applications needs into a cross layer sensor network simulator called C-ERROR(Cross Layer Reusable Resource Optimized Routing) which allows different clustering algorithms to be integrated and measure its performance at each layer of the stack. To have a platform independent sensor OS and a scheduler which allows creating sensing tasks that have real-time constraints.
{"title":"C-ERROR simulator for development for sensor and location aware sensing applications","authors":"V. Iyer, R. Murthy, M. Srinivas, B. Hochet","doi":"10.1109/ICSENST.2008.4757098","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757098","url":null,"abstract":"Distributed wireless sensor applications are useful for visualizing spatially and geographically related data such as location, neighborhood, weather, and measuring specific changes in the environment. Desires to augment these interfaces with additional specifications needed for distributed applications such as Power-Aware, Fault-tolerance and Processor agnostic deployment requirements have led to create a custom distributed Network Embedded Test-Bed that locally aggregate the measured signal from individual sensors and send it to a central coordinator for combined processing. We envision publishing and querying real-time (e.g. from sensors) over such distributed sensor farm applications which are deployed wirelessly and form a large sensor network. Existing solutions, although useful for writing the simple applications mentioned above, have several drawbacks in achieving this vision. First, publishing even a single stream of data as a useful service is a non-trivial task. Much useful data is not being stored yet because the need for managing a sensor farm has lots of complexities which make them unreliable in terms of polling time and communications costs. Second, existing applications are mutually incompatible and are processor centric and needs many ports which may introduce un-reliability. Third communication costs are not scalable to handle a sensor farm application and it does not provide an easy way to extend such a Network Embedded Test-Bed. The Network Embedded Test-Bed project aims to address these challenges, we like to model existing applications needs into a cross layer sensor network simulator called C-ERROR(Cross Layer Reusable Resource Optimized Routing) which allows different clustering algorithms to be integrated and measure its performance at each layer of the stack. To have a platform independent sensor OS and a scheduler which allows creating sensing tasks that have real-time constraints.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"22 1","pages":"192-199"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90958880","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}
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