Annotating Real-World Objects Using Semantic Entities

Hasemann, Henning; Kleine, Oliver; Kröller, Alexander; Leggieri, Myriam; Pfisterer, Dennis

doi:10.1007/978-3-642-36672-7_5

Cited by 11 publications

(6 citation statements)

References 12 publications

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“…An approach somewhat more similar to ours, also using the notion of an entity, has been presented in [22]. The aim here is to annotate real-world objects by using entities that are automatically created based on semantic information, which resides on the constrained devices.…”

Section: Existing Solutionsmentioning

confidence: 99%

Flexible Unicast-Based Group Communication for CoAP-Enabled Devices

Ishaq

Hoebeke

Abeele

et al. 2014

Sensors

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Smart embedded objects will become an important part of what is called the Internet of Things. Applications often require concurrent interactions with several of these objects and their resources. Existing solutions have several limitations in terms of reliability, flexibility and manageability of such groups of objects. To overcome these limitations we propose an intermediately level of intelligence to easily manipulate a group of resources across multiple smart objects, building upon the Constrained Application Protocol (CoAP). We describe the design of our solution to create and manipulate a group of CoAP resources using a single client request. Furthermore we introduce the concept of profiles for the created groups. The use of profiles allows the client to specify in more detail how the group should behave. We have implemented our solution and demonstrate that it covers the complete group life-cycle, i.e., creation, validation, flexible usage and deletion. Finally, we quantitatively analyze the performance of our solution and compare it against multicast-based CoAP group communication. The results show that our solution improves reliability and flexibility with a trade-off in increased communication overhead.

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Section: Existing Solutionsmentioning

confidence: 99%

Flexible Unicast-Based Group Communication for CoAP-Enabled Devices

Ishaq

Hoebeke

Abeele

et al. 2014

Sensors

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“…majority, to represent the physical status is valuable. And aggregation is what the concept of Semantic Entities from [2] bases on.…”

Section: ) Experimental Setupmentioning

confidence: 99%

“…a tiny micro-controller. In [1] and [2] we already provided some proof of concept on different scopes. [1] basically focuses on the integration of new devices into an existing environment and how such devices can participate in representing a physical things state without any a-priori knowledge about the thing to be represented.…”

Section: Introductionmentioning

confidence: 96%

“…[1] basically focuses on the integration of new devices into an existing environment and how such devices can participate in representing a physical things state without any a-priori knowledge about the thing to be represented. [2] exemplifies the abstraction from actual sensors and actuators to such representations of physical things and also contains further information on related work and differentiations to other approaches.…”

Section: Introductionmentioning

confidence: 99%

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Integrating the Physical World with the Internet -- A Concept Evaluation

Kleine

2013

2013 IEEE 6th International Conference on Service-Oriented Computing and Applications

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A key indicator for sustainable application development is reusability of components. Current research on application development aims to combine Services from the Web based on a description given by the developer. So, in many cases there should be no need to develop new applications from scratch. There is at least some sub-functionality provided somewhere which avoids the reinvention of the wheel. Such services may offer capabilities in terms of data-processing but also in terms of data-provisioning. In 2013 the number of smartphones in the world hit 1 bn units and is expected to hit 1.7 bn units in 2017 1 . They are equipped with various sensors, e.g. GPS, acceleration, brightness, noise, etc.. This leads to an inconceivable amount of information that in most cases is yet only locally available. The focus of this paper is on global provisioning of such data.Whereas the pervasiveness of smartphones grows massively, the Semantic Web initiatives aim to describe the knowledge of the world in a structured way. This enables machines to semantically understand the meaning of message payload and thus communicate and learn without any need for human intervention. This paper depicts and evaluates a framework to integrate the information from virtually arbitrary datasources with the Internet. This approach was developed within the SPITFIRE 2 . project. Besides the network integration, it allows to abstract from low-level sensor values to virtual representations of physical things using proper aggregation on the semantic level.

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“…An approach somewhat more similar to ours, also using the notion of an entity, has been presented in [6]. The aim here is to annotate real-world objects by using entities that are automatically created based on semantic information, which resides on the constrained devices.…”

Section: Related Workmentioning

confidence: 99%

Group Communication in Constrained Environments Using CoAP-based Entities

Ishaq

Hoebeke

Abeele

et al. 2013

2013 IEEE International Conference on Distributed Computing in Sensor Systems

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Abstract-The Constrained Application Protocol (CoAP) is a new Internet protocol that is currently being standardized. CoAP allows access to the drastically increasing number of smart objects and their sensing resources from virtually anywhere. It is a light-weight protocol designed to cope with the restrictions imposed by the limited resources (CPU, memory, power,…) of many smart objects. Depending on the application, information from individual objects might not be sufficient, reliable, or useful. An application may need to aggregate and/or compare data from a group of objects in order to obtain accurate results. Although multicast may be used to transmit the same request to several objects, multicast communication with smart objects has some disadvantages. Programming individual requests is another solution but lacks flexibility and opportunities for reusability. In this paper we propose a novel CoAP-based approach for communication with a group of resources across multiple smart objects. This approach organizes the group of resources that should be accessed into a new CoAP resource, called an entity, and nicely integrates several important aspects of entity management: creation, validation, usage and manipulation. In order to demonstrate the feasibility of this approach we present an implementation and experimental validation.

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Annotating Real-World Objects Using Semantic Entities

Cited by 11 publications

References 12 publications

Flexible Unicast-Based Group Communication for CoAP-Enabled Devices

Flexible Unicast-Based Group Communication for CoAP-Enabled Devices

Integrating the Physical World with the Internet -- A Concept Evaluation

Group Communication in Constrained Environments Using CoAP-based Entities

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