Traditional fall detection is only based on acceleration analysis. In this work we present a novel fall detection method that also utilizes posture and context information. this information can help reduce both false ...
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ISBN:
(纸本)9781595939906
Traditional fall detection is only based on acceleration analysis. In this work we present a novel fall detection method that also utilizes posture and context information. this information can help reduce both false positives and negatives. Our solution also strives for low computational cost and fast response.
We describe Emuli - a method of replacing sensor data with a network-wide model of stimuli events. sensor readings are generated on demand from the modeling data stored at each device. this approach allows for both re...
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ISBN:
(纸本)9781595939906
We describe Emuli - a method of replacing sensor data with a network-wide model of stimuli events. sensor readings are generated on demand from the modeling data stored at each device. this approach allows for both repeatable and variable experimentation with a network of physical devices for existing and planned sensing modalities. We illustrate the approach with (i) a light sensor and (ii) a hypothetical range sensor used in a tracking application.
Space and Earth monitoring is the next step for sensor networks. Distributed systems of small sensor-equipped satellites improve the cost efficiency and the missions' performance. this abstract discusses the chara...
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ISBN:
(纸本)9781595939906
Space and Earth monitoring is the next step for sensor networks. Distributed systems of small sensor-equipped satellites improve the cost efficiency and the missions' performance. this abstract discusses the characteristics of satellite Wireless sensor Networks (WSNs) and the challenges they introduce.
Event detection is an essential task for wireless sensor networks. In this paper we present the design and implementation of MC-Detect, an efficient scheme for detecting and estimating events in the network. With spar...
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ISBN:
(纸本)9781595939906
Event detection is an essential task for wireless sensor networks. In this paper we present the design and implementation of MC-Detect, an efficient scheme for detecting and estimating events in the network. With sparse samples processed at the basestation, our approach reduces the transmission and computation cost of low power sensor nodes. Our demonstration shows the real-time event detection in practice on a small network of TelosB motes.
Communication security for wireless sensor networks (WSN) is a challenge due to the limited computation and energy resources available at nodes. We describe the design and implementation of a public-key (PK) platform ...
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ISBN:
(纸本)9781595939906
Communication security for wireless sensor networks (WSN) is a challenge due to the limited computation and energy resources available at nodes. We describe the design and implementation of a public-key (PK) platform based on a standard Trusted Platform Module (TPM) chip that extends the capability of a standard node. the result facilitates message security services such as confidentiality, authenticity and integrity. We present results including computation time, energy consumption and cost.
In this paper we present preliminary work oil integrating visual sensing withthe more traditional sensing modalities for marine locations. We have deployed visual sensing at one of the Smart Coast WSN sites in Irelan...
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ISBN:
(纸本)9781595939906
In this paper we present preliminary work oil integrating visual sensing withthe more traditional sensing modalities for marine locations. We have deployed visual sensing at one of the Smart Coast WSN sites in Ireland and have built a software platform for gathering and synchronizing all sensed data. We describe how the analysis of a range of different sensor modalities can reinforce readings from a given noisy, unreliable sensor.
sensor networks using mobile robots have recently been proposed to provide more flexible and efficient sensing. However, mobile robots in a practical world have many accidents with actuator or communication devices es...
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ISBN:
(纸本)9781595939906
sensor networks using mobile robots have recently been proposed to provide more flexible and efficient sensing. However, mobile robots in a practical world have many accidents with actuator or communication devices especially in their traveling to the destination. Moreover, in the practical world, there are many obstacles and bad conditioned area for both wireless and movement of mobile robots. In this paper, we introduce a practical scheme for delivering data with concerning a practical world issues.
In this work we present two mobile, locative and collaborative distributed games that are played using wireless sensor devices. We briefly present the architecture of the two games and demonstrate their capabilities. ...
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ISBN:
(纸本)9781595939906
In this work we present two mobile, locative and collaborative distributed games that are played using wireless sensor devices. We briefly present the architecture of the two games and demonstrate their capabilities. the key characteristic of these games is that players interact with each other and their surrounding environment by moving, running and gesturing as a means to perform game related actions, using sensor devices. We demonstrate our system's implementation, which uses a combination of JAVA Standard and Mobile editions.
In this paper, we present the Flash flooding protocol that exploits the capture effect to produce low-latency network floods. the capture effect is the ability of some radios to correctly receive one of several concur...
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ISBN:
(纸本)9781595939906
In this paper, we present the Flash flooding protocol that exploits the capture effect to produce low-latency network floods. the capture effect is the ability of some radios to correctly receive one of several concurrently transmitted messages, even if the received strengths of the two messages are almost the same. We exploit this phenomenon in a network flooding scenario by allowing nodes to propagate the flooding message concurrently, thus reducing delays due to neighborhood contention. Our experimental results indicate that Flash can reduce latency by 75-80 percent without sacrificing flooding reliability or coverage.
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