• 한국HCI학회:학술대회논문집
• /
• 2008.02a
• /
• pp.158-162
• /
• 2008

Heart rate has many effect by environment factor and body factor and mind factor. Experimental testing decide to make relaxed condition. so It want to get correct data peoples different time and condition in the day so medical mans think relaxed to low Heart rate. but normal heart different from peoples and time. there was noting standard. so Heart rate is really hard to relaxed heart rate. Heart rate pattern must have long time analysis for good result. if you get relaxed heart rate so you don't need long-time analysis. Relaxed heart pattern used for guidance of auditory impulse public got concentration and solve to stress. it chose MC Square and mozart music. Two kind of auditory impulse analysis to make a relaxed Heart rate and relaxed pattern. way of analysis is HRV and minute of heart bit rate. result It have find Guidance to Relaxed Heart rate.

• 한국게임학회지
• /
• v.6 no.1
• /
• pp.37-40
• /
• 2009

본 논문에서는 정성적, 정량적 측정을 통한 게임 감성 유희(遊戱)요소 도출을 목적으로, 공포게임의 '공포'를 '유희적 공포'라 보고 로제카이와의 놀이이론에 근거하여 분석한 후, 이를 바탕으로 공포게임내 '유희적 공포요소'를 '감각적 유희공포', '기대적 유희공포', '제한적 유희공포', '수행적 유희공포'의 4가지로 분류했다. 연구자는 플레이어의 반응을 통해 이를 검증하기 위해 실증적 실험을 수행하였는데, 실험은 공포게임을 플레이 하는 동안 심박계를 통해서 각 실험자들의 심박을 측정하고 이를 촬영한 비디오 데이타를 분석하여 유희적 공포요소가 심리적, 생리적인 영향을 줄 것이라 예측된 지점을 공포지점(fear point)이라 명명하였으며, 이 지점에서 측정된 심박이 평상시 평균심박 및 실험 중 평균심박과 통계적으로 유의한 차가 있는지 알아보고 설문을 통한 플레이어의 주관적 데이타를 첨부하여 심박수와의 통계적인 상관관계를 알아보았다. 연구 결과, 공포지점에서 실험자들의 심박이 평상시 심박 및 실험중 평균심박 보다 통계적으로 유의미하게 상승됨을 증명했으며, 주관적 데이터와도 상관관계가 높음을 보여주었다. 본 연구는 게임 내 유희적 요소로서의 공포요소를 이론적인 방법과 실증적인 방법을 통해 검증하고 앞으로의 게임 제작 및 기획에 도움이 되는 기준을 제시할 수 있었다.

• Science of Emotion and Sensibility
• /
• v.23 no.2
• /
• pp.51-60
• /
• 2020

This study aimed to develop a modular smart clothing system for heart rate monitoring that reduces the inconvenience caused by battery charging and the large size of measurement devices. The heart rate monitoring system was modularized into a temporary device and a continuous device to enable heart rate monitoring depending on the requirement. The temporary device with near-field communication (NFC) and heart rate sensors was developed as a clothing attachment type that enables heart rate monitoring via smart phone tagging when required. The continuous device is based on Bluetooth Low Energy (BLE) communication and batteries and was developed to enable continuous heart rate measurement via a direct connection to the temporary device. Furthermore, the temporary device was configured to connect with a textile electrode made of a silver-based knitted fabric designed to be located below the pectoralis major muscle for heart rate measurement. Considering the user-experience factors, key functions, and the ease of use, we developed an application to automatically log through smart phone tagging to improve usability. To evaluate the accuracy of the heart rate measurement, we recorded the heart rate of 10 healthy male subjects with a modular smart clothing system and compared the results with the heart rate values measured by the Polar RS800. Consequently, the average heart rate value measured by the temporary system was 85.37, while that measured by the reference device was 87.03, corresponding to an accuracy of 96.73%. No significant difference was found in comparison with the reference device (T value = -1.892, p = .091). Similarly, the average heart rate measured by the continuous system was 86.00, while that measured by the reference device was 86.97, corresponding to an accuracy of 97.16%. No significant difference was found in terms of the heart rate value between the two signals (T value = 1.089, p = .304). The significance of this study is to develop and validate a modular clothing system that can measure heart rates according to the purpose of the user. The developed modular smart clothing system for heart rate monitoring enables dual product planning by reducing the price increase due to unnecessary functions.

• Journal of Yeungnam Medical Science
• /
• v.6 no.1
• /
• pp.99-107
• /
• 1989

24-hour ambulatory ECG monitoring has been examined for the evaluation of heart rate and longest pause in 34 patients with chronic atrial fibrillation(20 patients treated with digoxin and 14 patients without treatment). Following results were obtained : 1. In 34 patients, the mean of average heart rates was $75.7{\pm}13.8$/minute, fastest heart rates $148.0{\pm}32.4$/minute, slowest heart rates $48.1{\pm}8.4$/minute, difference between fastest and slowest heart rates in individual patients $99.9{\pm}29.0$/minute and longest pauses $2.95{\pm}1.06$seconds. The longest pauses of more than 4.0 seconds occurred in 4 of the 34 patients and made an exeption of comparison groups. 2. In 27 of the 34 patients, ventricular premature contractures were developed and in 11 of 27, mainly occured less than 100/24 hours and aberrant conduction occurred in all patients. 3. In 20 patients treated with digoxin(0.25mg/day), the mean of average heart rates was $78.4{\pm}13.7$/minute, fastest heart rates $152.5{\pm}33.1$/minute, slowest heart rates $48.9{\pm}8.5$/minute, difference between fastest and slowest heart rates in individual patients $103.6{\pm}31.7$/minute and longest pauses $2.55{\pm}0.50$seconds. 4. In 10 patients without treatment, the mean of average heart rates was $78.0{\pm}10.7$/minute, fastest heart rates $154.5{\pm}26.8$/minute, slowest heart rates $50.6{\pm}7.1$/minute, difference between fastest and slowest heart rates in individual patients $103.9{\pm}22.2$/minute and longest pauses $2.66{\pm}0.39$seconds. 5. The difference of heart rates and longest pauses between patients with treatment and without treatment were statistically not significant(P>0.05). In summary, authors seemed to consider that 24-hour ambulatory ECG was useful and safe method for clinical evaluation of patients with chronic atrial fibrillation.

• Journal of Chest Surgery
• /
• v.31 no.4
• /
• pp.398-401
• /
• 1998

A 56-year-old female with a permanent unipolar pacing(VVI) system underwent elective coronary bypass surgery and mitral valve replacement. Because the unipolar sensing is subject to considerable nonmyocardial electrical noise, the pacing function may be disturbed by the use of electrocautery. Temporary atrial and ventricular bipolar epicardial leads and external generator were used for maintaining A-V sequential pacing during the use of electrocautery. Before aortic cross-clamp was released after cardiac operation, regular cardiac rhythm could spontaneously be resumed with an integrated cardioplegic strategy, avoiding the use of defibrillator

• KIPS Transactions on Computer and Communication Systems
• /
• v.4 no.8
• /
• pp.253-258
• /
• 2015

From the point of view of u-healthcare, heart rate is so useful for both illness for taking care of patients and wellness for improving the level of health and wellbeing. It is because heart rate is a significant clinical variable for all kinds of diseases as well as an indicator of the intensity of exercise. Recently, a number of various wearable heart rate monitors have been released to check people's status in the body by monitoring their heart rates. In addition, a number of smartphone applications have been released to conveniently monitor the status of exercise by using heart rate monitors. However, all of these applications are limited to a personal usage. In this paper, we will design a system to simultaneously monitor heart rates coming from multiple users in a real-time, and develop an Android application to apply the system. The application mainly features a simultaneous monitoring of heart rates coming from multiple users, allowing to be effectively applied to fitness centers.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.3 no.1
• /
• pp.13-18
• /
• 2010

In this study, heart rate through ECG R-R intervals using the methods about how to automatically extract studied. Heart rate as measured by the naked eye, using the 2-order differential equations to extract heart rate, using self-correlation function to extract the heart rate was compared contemplate. To verify its efficacy and validity in practical applications, these method has been applied to MIT/BIH database. Based on this, making a ECG meter automatic heart rate measurements, and our ECG meter was compared with the existing ICU.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2023.07a
• /
• pp.291-293
• /
• 2023

위치정보 표시 및 심박수를 이용한 운동강도 표시 앱을 개발하는 주요 목적은 개인의 건강 상태를 관리하고 개선하기 위함이다. 건강관리의 가장 기본적인 수단은 운동이다. 운동 중에서도 유산소 운동은 체력을 증가시키고 몸무게도 줄일 수 있는 등 가장 효과적인 운동이면서도, 누구나 큰 준비 없이 마음만 먹으면 할 수 있는 가장 기본적인 운동이라고 생각했다. 유산소 운동을 할 때 위치정보를 표시하고 심박수를 측정하여 운동강도를 표시해준다면 운동에 큰 도움이 될 것으로 생각했다. 위치정보 표시 및 심박수 센서를 이용한 운동강도 표시 앱으로 심박수, 이동 거리 등을 추적하고 기록하며, 이를 통해 심박수 상태를 확인하고 운동강도를 조절함으로써 효과적으로 운동할 수 있을 것으로 예상된다. 또한 reCaptcha를 이용하여 사람과 악성봇을 구별 가능하게 하여 보안성을 높였다.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.14 no.3
• /
• pp.723-728
• /
• 2010

This study proposed a design of a portable device for measuring heart rate using photoplethysmograph signal to minimize load of a nurse increased from insufficiency of an internal hospital nurse, and algorithm to measure reliable heart rate in PPG signals despite the existence of patient's motion artifacts. The proposed method for measuring heart rate is the method to minimize the motion interference by using the adaptive filter based on harmonic characteristic of PPG signal. To evaluate the performances of the a portable device implemented by the proposed method, we used several motion artifacts including finger and wrist movements; we then compared out results with the performance of the moving average filter. In this results, the proposed method showed a better performance than that of the moving average filter. Therefore, when nurses use the a portable device for measuring heart rate proposed in this study, it will enable to improve nurse work and to measure the reliable heart rate.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.2 no.3
• /
• pp.23-29
• /
• 2009

The heart sends blood to the body with heart rate. When heart rate for men is from 60 to 80 per minute, he is generally normal. However, if heart rate is less than the normal heart rate, the symptom is called by bradycardia. Otherwise, the symptom is called by tachycardia. These symptoms make him even to death. Therefore, heartbeat rate has a very important role in a healthy life. In this study, we studied on auto-extracting methods of heart rates from ECG, and compared them with those measured by naked eyes. The first auto-extracting method employs the 2-order differential equations to extract heart rate. The second method uses the autocorrelation coefficients to detect heart rate. To verify its efficacy and validity in practical applications, these method has been applied to MIT/BIH database.