Project Name

Real-time Collaborative work/Remote Elder Care


M. Watanabe, K. Sugino, Y. Niwa, H. Yamazoe


Table Device, SmartPhone, iOS, Android, Meeting Support, Digital Signage


Design and implementation of the system effectively using multi tablet devices and smartphones


We address issues of collaborative workspaces using multiple general-purpose desktop applications. Despite the fact that users would prefer to use familiar desktop applications in collaboration with other people, they must currently use collaborative applications such as Google Docs instead. This study aims to implement a new collaborative workspace support framework for general-purpose desktop applications. To create the framework, we introduced a transparent layer with two aspects, visible- and event-transparency. The background of the transparent layer can be opaque. The transparent layer can forward received events to other layers as well as to other appli- cations. We have been developing a new web browser, Silhouette Web Browser, that enables seamless content, screenshot, and file sharing using the transparent layers. This study describes the architecture and implementation of the proposed browser and its applications.

We aim to develop a new user interface based on Bluetooth beacons. The user interface enables all devices in the same space to interact with each others. Our study is to realize a method to design the layout of multiple beacons to detect valid beacons in an approved area. However, human bodies absorb 2.4GHz waves, Bluetooth uses the 2.4GHz band, users in a detection area can attenuate Bluetooth signals. We implemented a planning system for a layout of Bluetooth beacons considering the attenuation by human bodies. We propose an authentication mechanism using Bluetooth beacons for multiple users. This paper describes the layout planning algorithm and its application, an authentication system for a paperless conference system we developed.

A remote elder care is important but it is difficult to support their correct dosing. We developed a remote elder care support system, which enables users to synchronize handwriting, and photos in real-time on ordinal smartphones and tablet devices. However, a caregiver was hard to check care receiver's dosing timely. And, it is undesirable to attach additional sensors to ordinal devices to reduce caregiver's load. To solve the problem, we developed a motion detector based on the attenuation of Bluetooth signals, the 2.4 GHz band. The advantages of our method are that equipment of any devices to detect care receivers is unnecessary and non-expert can sets the system flexibly. We experimented the attenuation of Bluetooth signals by a human body, thus we concluded that Bluetooth could be used for a motion detector.

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