• 전자공학회논문지 IE
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• v.49 no.2
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• pp.82-88
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• 2012

In this paper, using the Android-based mobile platform designed and integrated U-healthcare systems for personal health care system is proposed. Integrated Biometric systems, electrocardiogram (ECG), oxygen saturation, blood pressure, respiration, body temperature, such as measuring vital signs throughout the module and signal processing biometric information through wireless communication module based on the Android mobile platform is transmitted to the gateway. Biometric data transmitted from a mobile health monitoring system, or transmitted to the server of U-healthcare was designed. By implementing vital signs monitoring system has been measured in vivo by monitoring data to determine current health status of caregivers had the advantage of being able to guarantee mobility respectively. This system is designed as personal health management and monitoring system for emergency patients will be helpful in the development looks U-healthcare system.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.18 no.8
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• pp.2008-2016
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• 2014

With the increased attention about health care and management of heart diseases, ubiquitous healthcare services and related devices have been actively developed recently. In this paper we developed a mobile healthcare system which consists of smartphone and patch-type ECG measuring device. This system is capable of monitoring, storing, and sending bio signals such as ECG, heart rate, heart rate variability as well as exercise management functions through heart rate zones. With monitoring bio signal continuously by mobile healthcare system and wearable device like us, people can prevent chronic disease and maintain good health. Here we report our implementation results on real platforms.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.7 no.9
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• pp.429-442
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• 2017

This study was performed to investigate and analyze users' needs for m-health based prevention and intervention programs that are intended to improve the awareness of metabolic syndrome and promote health behaviors of college students. A questionnaire survey was conducted to 200 college students of 2 university in D city. Data were analyzed using descriptive statistics, t-tests, chi-square test with the SPSS Version 20.0. The result showed that users wanted customization of prescriptions and accurate measurement of health applications, and provided a positive feedback on information exchange between those who manage their health. The most preferred content was proper exercise methods, and the preferred gamification factors were goal-setting, compensation, and competition. The optimal price for wearable devices was between 10,000 to 50,000 won, and calorie consumption function was also preferred. Although users with experiences of wearable devices and health apps had a higher knowledge score pertaining to metabolic syndrome, there was no significant difference in the overall score. Concerning the health behaviors associated with lifestyles, individuals without the experiences of wearable devices and health apps showed a remarkably lower score. The research has a significance that it investigated and analyzed the contents needed for the development of effective moblie health based prevention and intervention programs targeting the population in their early adulthood. Therefore, based on the findings, we propose a rich and concrete follow-up study on the needs and characteristics of different user types by collecting a population with experiences of wearable devices, and a development of differentiated mobile health based prevention and intervention programs.

• Proceedings of the Korea Information Processing Society Conference
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• 2018.10a
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• pp.453-456
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• 2018

본 논문에서는 장시간 동안 모바일 기기를 통하여 건강관리를 할 수 있는 웨어러블 심전도 측정 시스템의 구현에 대하여 기술한다. 웨어러블 심전도 측정 시스템은 1-/6-채널의 심전도를 측정하여 블루 투스 통신으로 모바일 기기로 전송하기 위한 심전도 측정기와 모바일 기기에서 측정된 신호를 실시간으로 보여주는 앱으로 구성된다. 구현한 웨어러블 시스템을 이용하여 일상생활 및 수면동안의 심전도와 맥박 및 스트레스의 변화를 관측할 수 있고, 특히 심장의 이상으로 인한 부정맥 신호를 실시간으로 관찰하는 데 구현한 시스템이 매우 유용한 것으로 파악되었다.

• Journal of Korean Library and Information Science Society
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• v.52 no.1
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• pp.279-300
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• 2021

The present study aimed to investigate the information needs and information seeking behavior of consumers who attempted to quit or maintain the ceasing of smoking and analyze the effects of the health information obtained at different stages. In particular, we examined how consumers use mobile health applications(health apps) as aids to change unhealthy behaviors and how their use of health apps influence health behavior changes. For 7 months from December 2017 to July 2018, the researchers observed changes in smoking behaviors of college students who use smoking-cessation apps and conducted face-to-face interviews. Regarding the effects of smoking-cessation apps, the participants in the action stage reported that they were encouraged to quit smoking by visualized information such as the number of days of smoking cessation, change of health status, and the saving of money due to smoking cessation. The participants in the maintenance stage highlighted that smoking cessation apps were helpful in recognizing the importance and achievement of smoking cessation by sharing experiences and social support with other attempters in the app community. The study provided theoretical implications in the field of information behavior in that it identified the particular types of information needs and information-seeking behavior of the consumers who were using mobile apps in their behavior modification process. In addition, those findings can contribute to designing the contents of the smoking cessation apps that reflect the information needs of those who attempt to cease smoking and further suggest practical insights to health information services that promote effective information intervention strategies in health behavior change.

• Journal of the Institute of Electronics and Information Engineers
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• v.51 no.1
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• pp.233-240
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• 2014

According to the recent increasing trend of the ages, numbers of patients with chronic diseases are increasing and issues for health care are importantly emerged. In this thesis the research implements U-health care system for health care of patients with chronic diseases. The suggested system for health care of patients with chronic diseases composes bio measurement system, mobile gateway and medical information management server, and bio-signals are composed with modules such as electrocardiogram, blood pressure, blood sugar, oxygen saturation if configured as client. Blood sugar check was considered and implemented to be chosen the ways to transmit through bio measurement system or through gateway. Suggested bio measurement system and mobile gateway are transmitted through Bluetooth. The transmitted biodata is searched by observing health check through mobile gateway, by transmitting through network server, and by using client. By implementing bio signal observation system of patients with chronic diseases, present health check is available by monitoring measured bio data, and various bio signals are transmitted in the mobile environment.

• The Journal of the Korea institute of electronic communication sciences
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• v.17 no.3
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• pp.491-498
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• 2022

In our daily life, quality of sleeping is closely related to happiness index. Whether or not people perceive sleep disturbance as a chronic disease, people complain of many difficulties, and in their daily life, they often experience difficulty breathing during sleep. It is very important to automatically recognize breathing-related disorders during a sleep, but it is very difficult in reality. To solve this problem, this paper proposes a mobile-based non-contact sleeping monitoring for health management at home. Respiratory signals during the sleep are collected by using the sound sensor of the smartphone, the characteristics of the signals are extracted, and the frequency, amplitude, respiration rate, and pattern of respiration are analyzed. Although mobile health does not solve all problems, it aims at early detection and continuous management of individual health conditions, and shows the possibility of monitoring physiological data such as respiration during the sleep without additional sensors with a smartphone in the bedroom of an ordinary home.

• 한국노년학
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• v.39 no.1
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• pp.109-125
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• 2019

This study examined factors that prevent older adults from using computers and/or smartphones for their health information search and health management. This study conducted face-to-face survey of a total of 240 older adults aged over 65. Based on the responses of open-ended questions, this study conducted semantic network analysis. The results showed that low level of perceived usefulness(PU) (e.g., information I want to find, detailed information, and trustworthiness) and perceived ease of use(PEOU) (e.g., how to search for information, how to install applications, and visibility) are main factors that prevent older adults from using computers and/or smartphones for their health information search and health management. Furthermore, based on the results of semantic network analysis, further hierarchical regression analysis confirmed that PU and PEOU were positively associated with intention to use mobile application. Thus, the results imply that increasing older adults' PU and PEOU can promote their intention to use mobile application.

• Journal of the Korean Society for Library and Information Science
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• v.49 no.2
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• pp.335-353
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• 2015

The purpose of this study is to analyze the middle-aged adults' mobile information behavior focused on their demographic characteristics. To achieve the aim of this study data were collected from 50 to 64 years old middle-aged adults who live in different size of cities and towns in Korea using self-designed questionnaire through online and offline survey. Gender, academic background, income level, size of residential zone, physical condition, and occupation were adopted as demographic characteristics, and type of mobile contents use, hour of mobile use, ability of mobile use, persistency of mobile use, and usability of mobile were used as the mobile information behavior in this study. Total of 191 valid data were analysed using SPSS Ver. 21. The results of this empirical study revealed that there exist a significant difference between some of their demographical characteristics (e.g., academic backgrounds, income level, and occupation) and mobile information behaviors particularly in their contents use.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.14 no.4
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• pp.141-147
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• 2014

With the rapid development of major functions in a smartphone, many applications interacting with a smartphone are introduced and mobile applications converged with various related technologies are announced and rapidly disseminated recently. In this paper, we propose the design of a smart mobile application operated with devices like sensors in order to utilize various functions of the smartphone effectively. The mobile application proposed in this paper uses the bluetooth module of the smartphone, composes the wireless ad hoc network with various sensors around us, and collects bionic context information of the user in real time. The smart application designed and implemented in this paper is the sensor based healthy diet application that can fulfill healthy diet program by reflecting the user's sensed bionic context data in real time.