229 research outputs found
USING EMBEDDED TECHNOLOGY IN END-USER PROGRAMMING OF SMART SPACES WITH MOBILE DEVICES
A recent shift in computing paradigm from stand-alone microcomputers and mainframes towards entirely pervasivecomputing where billions of miniature, ubiquitous inter-connected computing elements weave themselves into thefabric of everyday life. Embedded systems run the computing devices hidden inside every object and appliance suchas cell phones, toys, handheld PDAs, cameras, microwave ovens, cars, airplanes, etc. These numerous, easilyaccessible devices connected to each other and to network infrastructure exhibit context-awareness of anenvironment in order to optimize their operation in that environment. In this paper, we examined embedded systemsin end-user programming of smart spaces with mobile devices. We designed and implemented a microcontrollerbasedsystem capable of monitoring and controlling the electronic appliances in a home from any location. Weadopted a task-driven computing approach of the composition of the semantic web. The end user uses thefunctionality of the networked devices in the home as semantic web services to arbitrarily form his request whichinvolves the typing of SMS through the user-friendly interface of a Java enabled mobile phone. An Arduinomicrocontroller for generating the timing and control signals programmed using Wiring language was used. TheGSM wireless technology was used for transmission and reception of the data. Our work addresses the problem ofenergy wastage and domestic accidents by enabling end-users to easily use their mobile devices to monitor andinstruct their home devices from any location over a wireless network.Keywords: Embedded Technology, Smart Spaces, End-User Programming, Mobile Devices, Pervasive Networkin
Design of Home Network Architecture using ACE/TAO Real Time Event Service
This paper proposes a home network design based on publisher/subscriber architecture which is developed using ACE/TAO Real-time Event Service (RTES) as the middleware platform. This design addresses a feature to support a real-time implementation for home network application such as home automation. Home network participants have been classified into several components based on consumer and supplier implementation in the ACE/TAO RTES in order to simplify the design. To optimize the network utilization, events are filtered based on their type and source for each publisher and subscriber. To deal with heterogeneous type of home appliances, event header information has been extended to wrap more information. Each of events can be configured with a specific scheduling and priority setting to meet its quality of service (QoS) according to the requirement. Network performance in handling an increasing number of consumer or supplier has been evaluated and show an acceptable result. Keywords: Home Network, ACE/TAO, RTES, QoS
Middleware Technologies for Cloud of Things - a survey
The next wave of communication and applications rely on the new services
provided by Internet of Things which is becoming an important aspect in human
and machines future. The IoT services are a key solution for providing smart
environments in homes, buildings and cities. In the era of a massive number of
connected things and objects with a high grow rate, several challenges have
been raised such as management, aggregation and storage for big produced data.
In order to tackle some of these issues, cloud computing emerged to IoT as
Cloud of Things (CoT) which provides virtually unlimited cloud services to
enhance the large scale IoT platforms. There are several factors to be
considered in design and implementation of a CoT platform. One of the most
important and challenging problems is the heterogeneity of different objects.
This problem can be addressed by deploying suitable "Middleware". Middleware
sits between things and applications that make a reliable platform for
communication among things with different interfaces, operating systems, and
architectures. The main aim of this paper is to study the middleware
technologies for CoT. Toward this end, we first present the main features and
characteristics of middlewares. Next we study different architecture styles and
service domains. Then we presents several middlewares that are suitable for CoT
based platforms and lastly a list of current challenges and issues in design of
CoT based middlewares is discussed.Comment: http://www.sciencedirect.com/science/article/pii/S2352864817301268,
Digital Communications and Networks, Elsevier (2017
Middleware Technologies for Cloud of Things - a survey
The next wave of communication and applications rely on the new services
provided by Internet of Things which is becoming an important aspect in human
and machines future. The IoT services are a key solution for providing smart
environments in homes, buildings and cities. In the era of a massive number of
connected things and objects with a high grow rate, several challenges have
been raised such as management, aggregation and storage for big produced data.
In order to tackle some of these issues, cloud computing emerged to IoT as
Cloud of Things (CoT) which provides virtually unlimited cloud services to
enhance the large scale IoT platforms. There are several factors to be
considered in design and implementation of a CoT platform. One of the most
important and challenging problems is the heterogeneity of different objects.
This problem can be addressed by deploying suitable "Middleware". Middleware
sits between things and applications that make a reliable platform for
communication among things with different interfaces, operating systems, and
architectures. The main aim of this paper is to study the middleware
technologies for CoT. Toward this end, we first present the main features and
characteristics of middlewares. Next we study different architecture styles and
service domains. Then we presents several middlewares that are suitable for CoT
based platforms and lastly a list of current challenges and issues in design of
CoT based middlewares is discussed.Comment: http://www.sciencedirect.com/science/article/pii/S2352864817301268,
Digital Communications and Networks, Elsevier (2017
An Online Environmental Approach to Service Interaction Management in Home Automation
Home automation is maturing with the increased deployment of networks and
intelligent devices in the home. Along with new protocols and devices, new
software services will emerge and work together releasing the full potential of
networked consumer devices. Services may include home security, climate control
or entertainment. With such extensive interworking the phenomenon known as
service interaction, or feature interaction, appears. The problem occurs when
services interfere with one another causing unexpected or undesirable outcomes.
The main goal of this work is to detect undesired interactions between devices
and services while allowing positive interactions between services and devices.
If the interaction is negative, the approach should be able to handle it in an
appropriate way.
Being able to carry out interaction detection in the home poses certain challenges.
Firstly, the devices and services are provided by a number of vendors and will
be using a variety of protocols. Secondly, the configuration will not be fixed,
the network will change as devices join and leave. Services may also change and
adapt to user needs and to devices available at runtime. The developed approach
is able to work with such challenges.
Since the goal of the automated home is to make life simpler for the occupant,
the approach should require minimal user intervention.
With the above goals, an approach was developed which tackles the problem.
Whereas previous approaches solving service interaction have focused on the
service, the technique presented here concentrates on the devices and their surrounds,
as some interactions occur through conflicting effects on the environment.
The approach introduces the concept of environmental variables. A variable may
be room temperature, movement or perhaps light. Drawing inspiration from
the Operating Systems domain, locks are used to control access to the devices
and environmental variables. Using this technique, undesirable interactions are
avoided. The inclusion of the environment is a key element of this approach as
many interactions can happen indirectly, through the environment.
Since the configuration of a homeâs devices and services is continually changing,
developing an off-line solution is not practical. Therefore, an on-line approach in
the form of an interaction manager has been developed. It is the managerâs role
to detect interactions.
The approach was shown to work successfuly. The manager was able to successfully
detect interactions and prevent negative interactions from occurring.
Interactions were detected at both device and service level. The approach is flexible:
it is protocol independent, services are unaware of the manager, and the
manager can cope with new devices and services joining the network. Further,
there is little user intervention required for the approach to operate
An Ontology Based Approach Towards A Universal Description Framework for Home Networks
Current home networks typically involve two or more machines sharing network resources. The vision for the home network has grown from a simple computer network, to every day appliances embedded with network capabilities. In this environment devices and services within the home can interoperate, regardless of protocol
or platform. Network clients can discover required resources by performing network discovery over component descriptions. Common approaches to this discovery process involve simple matching of keywords or attribute/value pairings.
Interest emerging from the Semantic Web community has led to ontology languages being applied to network domains, providing a logical and semantically rich approach to both describing and discovering network components. In much of the existing work within this domain, developers have focused on defining new description frameworks in isolation from existing protocol frameworks and vocabularies.
This work proposes an ontology-based description framework which takes the
ontology approach to the next step, where existing description frameworks are in-
corporated into the ontology-based framework, allowing discovery mechanisms to
cover multiple existing domains. In this manner, existing protocols and networking
approaches can participate in semantically-rich discovery processes. This framework
also includes a system architecture developed for the purpose of reconciling existing
home network solutions with the ontology-based discovery process.
This work also describes an implementation of the approach and is deployed within a home-network environment. This implementation involves existing home networking frameworks, protocols and components, allowing the claims of this work to be examined and evaluated from a âreal-worldâ perspective
UbiREAL: Realistic Smartspace Simulator for Systematic Testing
UbiComp 2006 : 8th International Conference on Ubiquitous Computing , Sep 17-21, 2006 , Orange County, CA, USAIn this paper, we propose a simulator for facilitating reliable and inexpensive development of ubiquitous applications where each application software controls a lot of information appliances based on the state of external environment, userâs contexts and preferences. The proposed simulator realistically reproduces behavior of application software on virtual devices in a virtual 3D space. For this purpose, the simulator provides functions to facilitate deployment of virtual devices in a 3D space, simulates communication among the devices from MAC level to application level, and reproduces the change of physical quantities (e.g., temperature) caused by devices (e.g., air conditioners). Also, we keep software portability between virtual devices and real devices. As the most prominent function of the simulator, we provide a systematic and visual testing method for testing whether a given application software satisfies specified requirements
Services and Policies for Care at Home
It is argued that various factors including the increasingly ageing population will require more care services to be delivered to users in their own homes. Desirable characteristics of such services are outlined. The Open Services Gateway initiative has been adopted as a widely accepted framework that is particularly suitable for developing home care services. Service discovery in this context is enhanced through ontologies that achieve greater flexibility and precision in service description. A service ontology stack allows common concepts to be extended for new services. The architecture of a policy system for home care is explained. This is used for flexible creation and control of new services. The core policy language and its extension for home care are introduced, and illustrated through typical examples. Future extensions of the approach are discussed
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