We present a distributedsystems architecture that uses Grid computing to combine basic nodes of wireless sensor networks with complex sensor nodes of wired networks. Three kinds of complex sensor nodes are identified...
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Total drag of common transport systems such as aircrafts or railways is primarily determined by friction drag. Reducing this drag at high Reynolds numbers (<10(4)) is currently investigated using flow control based...
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ISBN:
(纸本)9788132225294;9788132225287
Total drag of common transport systems such as aircrafts or railways is primarily determined by friction drag. Reducing this drag at high Reynolds numbers (<10(4)) is currently investigated using flow control based on transversal surface waves. For application in transportation systems with large surfaces a distributed real-time actuator and sensor network is in demand. To fulfill the requirement of real-time capability a deterministic transport protocol with a master slave strategy is introduced. With our network model implemented in Simulink using TrueTime toolbox the deterministic transport protocol could be verified. In the model the Master-Token-Slave (MTS) protocol is implemented between the application layer following the ieee 1451.1 smart transducer interface standards and the Ethernet medium access protocol. The model obeys interfaces to the flow control and the DAQ-hardware allowing additional testing in model in the loop simulations.
Physiological monitoring can be useful in a number of scenarios to evaluate or diagnose the status of individuals or groups, for health or mental reasons. The devices used to collect this data have become increasingly...
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ISBN:
(纸本)9781467347211
Physiological monitoring can be useful in a number of scenarios to evaluate or diagnose the status of individuals or groups, for health or mental reasons. The devices used to collect this data have become increasingly portable, but deriving useful metrics from such data can often take significant processing - a commodity not always available in mobile environments. This paper presents and evaluates a system designed to easily process physiological signals in mobile environments by utilising commonly-available smartphone hardware to collaboratively transform collected data.
In some trading-based Web applications, it is desirable for the parties engaged in a business to negotiate via their own agent system. This requires their agent system to be inter-operable through a distributed archit...
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ISBN:
(纸本)9780780387355
In some trading-based Web applications, it is desirable for the parties engaged in a business to negotiate via their own agent system. This requires their agent system to be inter-operable through a distributed architecture. In this paper we present the Collaborative Agreement for Automated Trading (CAAT), an initiative intended to deal with this issue. The framework, built on top of the FIP A Agent Architecture model, combines the agent technology and the Web service functionalities to provide a distributedcomputing architecture for supporting online bargaining. It has three main components: the Business Interaction Model, the Ontology, and the Interaction Protocol.
The main challenge when deploying sensor networks pertains to optimizing the energy consumption for data collection from sensor nodes. This paper proposes a new data collection mechanism based on a distributed cluster...
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ISBN:
(纸本)9780769528892
The main challenge when deploying sensor networks pertains to optimizing the energy consumption for data collection from sensor nodes. This paper proposes a new data collection mechanism based on a distributed clustering method. It uses sensor network energy maps and applies QoS requirements in order to reduce energy consumption. Simulation results show that this new data collection algorithm consumes less energy than the TAG algorithm.
The sensor Sharing Marketplace (SenShaMart) enables IoT applications to find IoT sensors, which are owned and managed by other parties, integrate them, and pay for using their data. To provide corresponding services t...
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ISBN:
(纸本)9798350339864
The sensor Sharing Marketplace (SenShaMart) enables IoT applications to find IoT sensors, which are owned and managed by other parties, integrate them, and pay for using their data. To provide corresponding services that implement that FAIR (Findable, Accessible, Interoperable, Reusable) principles of IoT, SenShaMart incorporates a specialized blockchain that manages all the information its services need to allow different parties in IoT to describe, query, integrate, pay for, and use IoT sensors and their data. The paper presents the SenShaMart's architecture, implementation, evaluation, and demonstration.
Access control (AC) is critical for preventing sensitive information from unauthorized access. Various AC systems have been proposed and enforced in different types of information systems (e.g., bank and military). Ho...
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ISBN:
(纸本)9781538625651
Access control (AC) is critical for preventing sensitive information from unauthorized access. Various AC systems have been proposed and enforced in different types of information systems (e.g., bank and military). However, existing AC systems cannot thoroughly address the challenges in emerging distributed processing systems (DPS), such as Big Data (BD) and Cloud, due to their dynamic and complex architecture. Generally, AC for DPS needs to consider the protection for collaboration among distributed processing domains. Even though some DPS architectures were proposed to address DPS challenges, most of them only focus on processing capabilities without consideration of AC. Even with some inclusion of security in recent DPS, they are mostly ad hoc and patch efforts. In this paper, we analyze the general features and use cases of BD and Cloud, which are two of most widely applied DPS applications, and propose a set of general and comprehensive considerations for AC in DPS, which can provide a guideline for designing AC systems for DPS.
This paper introduces Beat sensors which are suitable for smart environment monitoring as low power and small size IoT sensors. As a typical representative, the Ethanol Beat sensor is realized to monitor the ethanol c...
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ISBN:
(纸本)9781538679630
This paper introduces Beat sensors which are suitable for smart environment monitoring as low power and small size IoT sensors. As a typical representative, the Ethanol Beat sensor is realized to monitor the ethanol concentration from 0 to 200 ppm at almost 20 ppm resolution. Beat sensor has large potential to address issues of smart environment monitoring such as air pollutions management. Moreover, the long distance (LoRa) communication protocol is applied to build a smart and energy efficient monitoring system.
This paper presents a developing method for effective implementation of large-scale distributed sensing systems. Use of occam-pi programming language for simulation is yet implemented by code generator from a high-lev...
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ISBN:
(纸本)9781450366120
This paper presents a developing method for effective implementation of large-scale distributed sensing systems. Use of occam-pi programming language for simulation is yet implemented by code generator from a high-level tool. A complete program has local activities for sensing and distributed activities for data collection and distributed control. distributed algorithms are developed and fine-tuned by simulators. To validate and evaluate our proposed method, node local behavior was interpreted on target hardware for the practical deployment of wireless sensor networks.
Deployment of sensor networks in real-world settings is a labor-inten-sive and cumbersome task: environmental influences often trigger problems that are difficult to track down due to limited visibility of the network...
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ISBN:
(纸本)9783540730897
Deployment of sensor networks in real-world settings is a labor-inten-sive and cumbersome task: environmental influences often trigger problems that are difficult to track down due to limited visibility of the network state. In this paper we present a framework for passive inspection (i.e., no instrumentation of sensor nodes required) of deployed sensor networks and show how this framework can be used to inspect data gathering applications. The basic approach is to temporarily install a distributed network sniffer alongside the inspected sensor network, with overheard messages being analyzed by a data stream processor and network state being displayed in a graphical user interface. Our tool can be flexibly applied to different sensor network operating systems and protocol stacks, and can deal well with incomplete information.
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