We present ongoing work to develop a power transformer condition monitoring system. Energy harvesting will be used to power the sensor nodes measuring the vibration of the transformer. A subset of this work will be de...
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ISBN:
(纸本)9781605585192
We present ongoing work to develop a power transformer condition monitoring system. Energy harvesting will be used to power the sensor nodes measuring the vibration of the transformer. A subset of this work will be demonstrated.
In this demonstration, we will present three key technologies we recently developed to improve time synchronization accuracy in sensor networks: (1) Temperature Driven Time Synchronization, (2) Low-Power Sub-μSecond ...
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ISBN:
(纸本)9781605585192
In this demonstration, we will present three key technologies we recently developed to improve time synchronization accuracy in sensor networks: (1) Temperature Driven Time Synchronization, (2) Low-Power Sub-μSecond Time Synchronization, and (3) Low-Power FPGA implementation of a High-Low Timer.
We present a sensor network that monitors a hallway. It consists of 180 load sensors connected to 30 wireless sensor nodes, where the setup is of extremely low cost and easily transferred to other settings. Our networ...
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ISBN:
(纸本)9781605585192
We present a sensor network that monitors a hallway. It consists of 180 load sensors connected to 30 wireless sensor nodes, where the setup is of extremely low cost and easily transferred to other settings. Our network serves as a testbed for in-network data processing algorithms, for which it is highly suitable due to the many correlated sensors.
Due to the highly distributed nature and special basic conditions such as limited resources, implementing and maintaining a sensor network application is a tedious task. In this demonstration we present a service-orie...
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ISBN:
(纸本)9781605585192
Due to the highly distributed nature and special basic conditions such as limited resources, implementing and maintaining a sensor network application is a tedious task. In this demonstration we present a service-oriented operating system for sensor nodes and a framework that allows a composition of services on the nodes. We show how sensor network applications can be composed and modified by using different services.
In distributed spectrum sensing, we deploy ten thousands of sensor nodes, and a low-cost sensor node is necessary. In this work, we design the sensor node specialized in power level measurement for distributed spectru...
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ISBN:
(纸本)9781605585192
In distributed spectrum sensing, we deploy ten thousands of sensor nodes, and a low-cost sensor node is necessary. In this work, we design the sensor node specialized in power level measurement for distributed spectrum sensing, and we discuss 3 components of the node, which are frequency range, RBW and a detector.
Energy efficiency is a common requirement for most WSN applications. We present our approach utilizing precise distributed monitoring of energy consumption to support the development of energy efficient protocols. the...
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ISBN:
(纸本)9781605585192
Energy efficiency is a common requirement for most WSN applications. We present our approach utilizing precise distributed monitoring of energy consumption to support the development of energy efficient protocols. there-fore we designed dedicated energy monitoring and management hardware for a wireless sensor network testbed. In our demonstration we show distributed energy measurement in a typical sensor network application based on an area monitoring scenario.
the proposed system provides a mechanism of detecting the stealing of valuables, and integrates wireless sensor networks with a location service to trace stolen valuables through deployed cameras in an indoor environm...
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ISBN:
(纸本)9781605585192
the proposed system provides a mechanism of detecting the stealing of valuables, and integrates wireless sensor networks with a location service to trace stolen valuables through deployed cameras in an indoor environment. Compared with traditional surveillance systems, it is able to actively notify the security manager that monitored valuables are stole and show the current positions, and real-time images of those stolen valuables when theft cases occur.
In this work, we study indoor passive tracking problem in wireless sensor networks (WSNs), in which we assume the target being tracked is "clean", i.e., there is no any equipment carried by the target and th...
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ISBN:
(纸本)9781605585192
In this work, we study indoor passive tracking problem in wireless sensor networks (WSNs), in which we assume the target being tracked is "clean", i.e., there is no any equipment carried by the target and the tracking procedure is considered to be passive. We design, implement and test our tracking methods in a WSN testbed consisting of 40 wireless sensor nodes and one base station (laptop).
Running efficiency is an important factor to consider in order to avoid injury. In particular, foot pronation, the angle of the foot as it hits the ground, is a common cause for many types of injuries among runners. T...
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ISBN:
(纸本)9781605585192
Running efficiency is an important factor to consider in order to avoid injury. In particular, foot pronation, the angle of the foot as it hits the ground, is a common cause for many types of injuries among runners. though pronation is common, diagnosing pronation is difficult and imprecise. Currently there is no method of diagonsis which can quantify the severity of pronation. In this paper we propose using WISP (Wireless Identification and Sensing Platform) sensors to help identify and quantify foot pronation.
Using solar panels to power wireless sensor nodes is feasible in most of WSNs applications. We present an efficient solar-charging system and a remote energy-profile monitoring system which can monitor the dynamic cha...
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ISBN:
(纸本)9781605585192
Using solar panels to power wireless sensor nodes is feasible in most of WSNs applications. We present an efficient solar-charging system and a remote energy-profile monitoring system which can monitor the dynamic charging procedure of wireless sensor nodes in different environments. We design and implement dynamic routing policies according to the current available energy of nodes for WSNs powered by solar panels.
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