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To achieve efficient presence sensing within home network system (HNS), an inexpensive and elastic system that can be shared by various HNS applications is required. This paper presents Presence Sensor Service Framework, which can uniformly manage presence information in various places using various types of sensors. The framework consists of Presence Sensor Device (PSD), Presence Sensor Terminal...
Managing a home server within individual house is a major obstacle to practical use of home network system (HNS). Delegating the home server to a cloud is a promising approach. However, the conventional multitenant SaaS-based solution has the following risks among different households: security/privacy violation, failure propagation and insufficient resource demand. In this paper, we propose a novel...
Research and development of home network system (called HNS.) is recently a hot topic in the area of ubiquitous computing applications. Orchestrating house-hold appliances (e.g., TVs, DVDs, speakers, air-conditioners, lights, curtains, windows, et al.) via the network, the HNS provides value-added services for home users. In our previous research, we have proposed and developed HNS-VAUI that is the...
With the spread of Machine-to-Machine (M2M) systems and cloud services, various kinds of data are available through Web services. A context-aware service recognizes a real-world context from such data and behaves autonomously based on the context. However, it has been challenging to manage contexts and services defined on the heterogeneous and distributed Web services. In this paper, we propose a...
A home network system (HNS) provides value-added services for home users by networking house-hold appliances and sensors. In the conventional architecture, the HNS appliances and services are tightly coupled. It is therefore difficult for users to freely choose their favorite appliances and services. In this paper, we propose a new HNS architecture that accommodates multi-vendor services by extensively...
In order to achieve intuitive and easy operations for home network system (HNS), we have previously proposed user interface with virtual agent (called HNS virtual agent user interface, HNS-VAUI). The HNS-VAUI was implemented with MMDAgent toolkit. A user can operate appliances and services interactively through dialog with a virtual agent in a screen. However, the previous prototype heavily depends...
Electricity peak shaving is a promising approach to energy saving at home. The conventional peak shaving has been conducted in an automatic and system-centric approach, using the emerging home energy management systems (HEMS). However, for more sustainable energy-saving, it is also important to develop a human-centric approach, which encourages residents to perform energy-saving behaviors by themselves...
A home network system (HNS) coordinates various networked home appliances to achieve value-added services. If multiple services are executed at the same time, functional conflicts between the home appliances may occur. These are known as feature interactions (FIs) in the HNS. We have previously defined two kinds of FIs: appliance interactions and environment interactions. Environment interaction refers...
The human interface devices for the home network system (HNS) should be flexible enough to reflect individual preferences and lifestyles of home users. To fill the requirement, this paper presents a novel framework that enables Personal Home Controllers (PHC) on smartphones. The proposed framework is designed so that a user can freely design screen layouts with buttons and pictures, and can define...
When multiple sensor-driven services are deployed in the same environment, execution of a service may trigger other services, successively. Such chain reactions of services often cause undesirable feature interactions. This paper presents a framework that can characterize and detect the service chains within the home network system (HNS). We first introduce the ECA rules to describe the services,...
The sensor as a service is an emerging application of the services computing. However, how to implement such sensor services efficiently and reliably is an open issue. This paper presents an application framework, called Sensor Service Framework (SSF), that supports developers to build and deploy sensor services in the home network system (HNS). The SSF prescribes device-neutral features and APIs...
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