Dong-Wan Ryoo

Design of The Wearable Gadgets for Life-Log Services based on UTC

A life-log means a recording the interesting events or the daily life of an individual as the digital method. The types of information for life log are as follows: a photograph, voice, the activity, physiological signals, time information, and location of user. In this paper, the design of wearable gadgets for life-log service based on UTC is presented. We designed of two kinds of wearable gadgets. The firstly is wearable gadget for low rate data (e.g., location), the second is wearable gadget for high rate data (e.g., video). The gadgets acquire the UTC (universal time coordinated) time information by using GPS from a satellite. The acquired time (UTC) are included in acquired life log data from the different systems such as an image, an audio, a bio-signal, environmental information, etc. The measured life-log signals and environment signals in a daily life can be merged with the synchronized time and position information. This information can be realized the obtained time of life log data later. Therefore, it makes more and more useful information can be obtained. This can also provide much usability to retrieve data of life log.

Design of Wearable Gadgets for Life-Log Service based on UTC

Recently, the technology of the memory has been developed for storage of data. According to the technology of the memory, storage capacity has rapidly been increased. The new demand to store users special situations or the daily life appears accordingly. A life-log means a recording the interesting events or the daily life of an individual as the digital method. The information for life log are as follows: a photograph, voice, the activity, physiological signals, time information, and location of user. In this paper, the design of wearable gadgets for life-log service based on UTC is presented. We designed of two kinds of wearable gadgets. The firstly is wearable gadget for low rate data (e.g., location), the second is wearable gadget for high rate data (e.g., video). The gadgets acquire the UTC (Universal Time Coordinated) time information by using GPS from a satellite. The acquired time (UTC) are included in acquired life log data from the different systems such as an image, an audio, a bio-signal, environmental information, etc. The measured life- log signals and environment signals in a daily life can be merged with the synchronized time and position information. This information can be realized the obtained time of life log data later. Therefore, it makes more and more useful information can be obtained. This can also provide many usabilities to retrieve data of life log.

The Wearable Wrist-Type Gadget for HealthCare based on Physiological Signals

In this paper we propose a wearable wrist type wireless gadget for personal services, especially healthcare service, based on physiological signals. The wrist-type gadget can process ECG, PPG, SKT, and PTT signals and can provide NIBP, HR, and stress level. The proposed wearable gadgets can be used for self-diagnosis, and real-time monitoring.

Implementation of Smart Headband for the Wearable Healthcare

The rapid technology advances enable healthcare system to monitor physiological signals in humans daily life. The wearable healthcare system should be not only small and easy for users to wear them but accurate in measuring physiological signals in daily life without any inconvenience. To meet these requirements we propose a headband-style device to be easily wearable, smart headband. It measures a photo-plethysmography (PPG) signal at the forehead for monitoring the heart rate and acceleration signals for counting the number of steps. For the precise measurement, we adopt adaptive noise cancellation (ANC). Smart headband can provide the healthcare service to monitor the health state and to alert emergency situation.

Wearable healthcare gadget for life-log service based on WPAN

The advent of ubiquitousness has been changing the uses as well as the paradigm of services, and emphasizing the importance of services being personalization. In this paper, we propose Wearable Healthcare Gadget based on Wireless Personal Area Network (WPAN) to gather health information of user and a new approach to life-log service using the Wearable Healthcare Gadget. It can be wearable and gather physiological information and environmental information which can provide life-log service. Also it has the processing and networking capability.

Design of an armband type contact-free space input device for human-machine interface

In this paper, the design of an armband type noncontact space input for human-machine interface is presented. Demand for a non-contact type input system has been increasing with the development of large-display technology. One of the non-contact type input system is a system based on gesture recognition. Unlike a glove type device, an armband device type does not constrain finger movements. We designed two different-types of armband space input systems for user interface. One is an arm band type space input system that uses arm movement and finger actions; the other is an armband type space input system by using arm movement and wrist snap actions.

An Armband-Type Touch-Free Space Input Device for HCI

In this paper, the design of an armband-type non-touch space input mouse for human computer interface is presented. Demand for a non-touch type input system has been increasing with the development of large-display technology. One of the non-touch type input system is a system based on gesture recognition. There is a lot of research on gesture recognition systems based on vision, but the presented device has advantages in terms of accuracy. The globe type input system is already developed, but the users do not want restrictions on finger actions. Unlike a glove type device, an armband device type does not constrain finger movements. We designed an armband- type space input mouse by using arm movement and wrist gesture actions.

Dynamic self reconfigurable mobile platform for multimodal life log signal

This paper proposes a dynamic self reconfigurable mobile platform which can collect, process, and transmit multimodal life log signal. The proposed platform provides highly reconfigurable schemes in 3 levels such as device, network, and application levels. The platform consists of a base module and optional device modules. This optional device module provides the device level reconfigurability. The platform constructs body area networks with other platforms using a near field communication device on the base module. It supports self reconfigurable scheme in network level because of its mobile characteristic. Applications running on the proposed platform depend on the device modules on the main module. The application reconfigurability results from the device level reconfigurability. We have implemented the proposed platform and verified its dynamic self reconfigurable scheme in multimodal life log signal processing.