In modern society, a large portion of the population suffers from sleep disorder. Some sleep disorders are serious enough to interfere with functioning of daily lives. therefore knowing how well one sleeps is an impor...
详细信息
ISBN:
(纸本)9781605585192
In modern society, a large portion of the population suffers from sleep disorder. Some sleep disorders are serious enough to interfere with functioning of daily lives. therefore knowing how well one sleeps is an important health indicator that can lead to more aggressive actions. In this demo, we present SNORES: sensor Networks Oriented REsearch in Sleep. SNORES is an in-home sleep monitoring system that is inexpensive, easy-to-install, and less intrusive.
the ease of deploying wireless camera sensor nodes has grown withthe reduction of manufacturing costs of low power, high resolution cameras. Although current wireless sensor network platforms have limited on-board re...
详细信息
ISBN:
(纸本)9781605585192
the ease of deploying wireless camera sensor nodes has grown withthe reduction of manufacturing costs of low power, high resolution cameras. Although current wireless sensor network platforms have limited on-board resources for solving highly complex computer vision problems, we show that by splitting the processing costs between the sensor node and a powerful backend, we can achieve better classification results. Using such a distributed processing approach, we balance the computational and communication costs for achieving better detection performance while improving the system lifetime.
the rapid development of wireless sensor networks (WSNs) and the increasing complexity of the deployed applications force researchers to turn to testbeds to test their communication and application related algorithms ...
详细信息
ISBN:
(纸本)9781605585192
the rapid development of wireless sensor networks (WSNs) and the increasing complexity of the deployed applications force researchers to turn to testbeds to test their communication and application related algorithms and protocols. On the other side, industries' demand for young professionals with WSN expertise is growing too. these two factors motivated us to develop a highly modular and extensible testbed, called Atelier, as part of our bachelor level course on WSNs. In this paper we share our testbed design and describe its main requirements and challenges.
the energy-efficient management of wireless sensor networks is a demanding task: It has to trade off the need for a detailed insight into the network internals against the energy consumption of the management system i...
详细信息
ISBN:
(纸本)9781605585192
the energy-efficient management of wireless sensor networks is a demanding task: It has to trade off the need for a detailed insight into the network internals against the energy consumption of the management system itself. We demonstrate a management framework that significantly reduces the communication overhead spent on sending and receiving messages for management purposes while being completely independent from the running sensing application. the management software running on the sensor nodes is able to aggregate management data and data from the actual sensing application. the energy saved on management measures can considerably prolong the lifetime of a wireless sensor network and hence increase the value of an installed sensor network.
Simultaneous transmissions in the same radio range of a wireless sensor network causes interference and packets are lost. Knowing the interference pattern in advance, the transmission links can be scheduled so that no...
详细信息
ISBN:
(纸本)9781605585192
Simultaneous transmissions in the same radio range of a wireless sensor network causes interference and packets are lost. Knowing the interference pattern in advance, the transmission links can be scheduled so that no packet is lost due to interference and all streams meet their deadlines. this problem is NP-hard in general and therefore we resort to heuristics. In this paper, we present a set of heuristics for scheduling periodic, real-time data streams over a wireless sensor network. Simulation results show that our heuristics produce feasible schedules in almost all cases.
We propose PipeProbe, a mobile sensor system for mapping hidden water pipelines inside cement walls or under floor coverings. PipeProbe works by dropping a sensor capsule into the source of the water pipelines. As the...
详细信息
ISBN:
(纸本)9781605585192
We propose PipeProbe, a mobile sensor system for mapping hidden water pipelines inside cement walls or under floor coverings. PipeProbe works by dropping a sensor capsule into the source of the water pipelines. As the PipeProbe capsule traverses the pipelines, it gathers water pressure and accelerometer readings. Given the pressure sensor readings, we can identify the height of PipeProbe. Accelerometer is used to recognize different types of water pipeline shape when PipeProbe travels through. the PipeProbe system is non-intrusive and requires no alteration to the water pipeline infrastructure.
the current rapid development and deployment of wireless sensor networks (WSNs) and their application in mission critical systems are exacerbating the need for high confidence WSNs. Achieving high confidence WSNs will...
详细信息
ISBN:
(纸本)9781605585192
the current rapid development and deployment of wireless sensor networks (WSNs) and their application in mission critical systems are exacerbating the need for high confidence WSNs. Achieving high confidence WSNs will require new assurance technologies. Most current solutions deal with faults and reliability and not with application level semantics and associated assurances. We propose the use of a novel WSN design and assurance mechanism, run time assurance (RTA), to guarantee that important application-level requirements are met in mission critical applications.
Wireless sensor networks (WSNs) are often advertised with high sensing accuracy, long lifetime, and easy deployment. However, they are still not widely used in environmental research due to of poor tool support and hi...
详细信息
ISBN:
(纸本)9781605585192
Wireless sensor networks (WSNs) are often advertised with high sensing accuracy, long lifetime, and easy deployment. However, they are still not widely used in environmental research due to of poor tool support and high complexity. A wider use of WSNs in field science would enable researchers to address scientific questions that are infeasible *** address this issue, we designed and prototyped a Software Factory for WSNs that hides the complexity of software development for embeddedsystems. It exposes a visual domain-specific modeling language and supports code generation for resource constrained devices. the proposed Software Factory simplifies the integration of domain experts into the development process, making WSNs more attractive as a tool for researchers from outside of the computer science field. this could lead to a wider adoption of WSNs in field sciences.
Portability is a major concern in developing applications for embedded devices such as Wireless sensor Networks (WSN). Abstractions of the hardware platform which are introduced by the operating system (OS) make possi...
详细信息
ISBN:
(纸本)9781605585192
Portability is a major concern in developing applications for embedded devices such as Wireless sensor Networks (WSN). Abstractions of the hardware platform which are introduced by the operating system (OS) make possible to develop code independent of the hardware, which can be reused in later deployments. However, the lack of standard APIs for the variety of OS in the domain of WSN restricts portability to those systems running the same *** present on-going work on the design and development of a portable operating system abstraction layer (OSAL), which achieves a complete abstraction of the OS architecture as well as a common API across multiple OS. Portability at the application level is effectively achieved thanks to a common set of primitives which abstract the underlaying OS and its particular *** provide argumentation to highlight the efficiency of the OSAL and a general introduction to its features and design considerations. Moreover, we present a preliminary evaluation of the current implementation, which has proven to introduce minimal run-time overhead as well as negligible increase on the software footprint.
the sensorFly system is a novel, low-cost, miniature controlled-mobile aerial sensor network. Mobility permits the network to be autonomous in deployment, maintenance and adapting to the environment, overcoming the re...
详细信息
ISBN:
(纸本)9781605585192
the sensorFly system is a novel, low-cost, miniature controlled-mobile aerial sensor network. Mobility permits the network to be autonomous in deployment, maintenance and adapting to the environment, overcoming the reliance of traditionally fixed networks on human intervention, large infrastructure or inefficient random methods. We wish to demonstrate the novel hardware design, flight control and collaborative localization capabilities of the sensorFly system. To the best of our knowledge, this is the lightest realized flying sensor system in existence, with a weight of 30g and low mass production cost of ~$100. Developed under severe weight, cost, energy and processing power constraints, we show that this system is a viable and capable mobile sensor network platform.
暂无评论