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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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Objective: This study is to design optimal haptic warning signal to secure awareness of drowsy driver and evaluate its alertness compared with the auditory signal.
Background: As drowsy driving is one of the causes of fatal traffic accidents, the vehicle needs an assistant system that can monitor the driver"s drowsiness and give warnings to arouse in case of drowsy driving. It is important to design and utilize effective warning signals in a drowsy driving warning system (DDWS) for fast and clear response of the driver. Under certain circumstances like public transportations, haptic display is more appropriate for silent and private communication between the system and the driver.
Method: Experiments were conducted to evaluate alertness of warning signals in terms of response rate and time in a simulated driving environment. Subjects participated in the experiments for comparing the alertness for 3 haptic signals with 1 auditory signal. Different haptic signals modulated by its frequencies of 2, 5, and 8Hz were given in random order when a valid DDWS identified the subjects" drowsiness defined in two levels (light and heavy).
Results: The response rate of the haptic signals (90%) was significantly lower than that of the auditory signal (97%) under light drowsy condition, but haptic signal of 2Hz got fastest response time (1,390msec) among the signals. The difference in the response time was statistically significant among the haptic signals but it is not for auditory signal. The response time of 2Hz haptic signal was found as competitive in heavy drowsy condition.
Conclusion: It is found that haptic signals with different design parameters can make differences in alertness of drowsy driver and in case of this study the best option was of 2Hz.
Application: The Haptic signal is going to be implemented in a DDWS and tested for its alertness in real vehicle conditions.
Background: As drowsy driving is one of the causes of fatal traffic accidents, the vehicle needs an assistant system that can monitor the driver"s drowsiness and give warnings to arouse in case of drowsy driving. It is important to design and utilize effective warning signals in a drowsy driving warning system (DDWS) for fast and clear response of the driver. Under certain circumstances like public transportations, haptic display is more appropriate for silent and private communication between the system and the driver.
Method: Experiments were conducted to evaluate alertness of warning signals in terms of response rate and time in a simulated driving environment. Subjects participated in the experiments for comparing the alertness for 3 haptic signals with 1 auditory signal. Different haptic signals modulated by its frequencies of 2, 5, and 8Hz were given in random order when a valid DDWS identified the subjects" drowsiness defined in two levels (light and heavy).
Results: The response rate of the haptic signals (90%) was significantly lower than that of the auditory signal (97%) under light drowsy condition, but haptic signal of 2Hz got fastest response time (1,390msec) among the signals. The difference in the response time was statistically significant among the haptic signals but it is not for auditory signal. The response time of 2Hz haptic signal was found as competitive in heavy drowsy condition.
Conclusion: It is found that haptic signals with different design parameters can make differences in alertness of drowsy driver and in case of this study the best option was of 2Hz.
Application: The Haptic signal is going to be implemented in a DDWS and tested for its alertness in real vehicle conditions.
목차
1. Introduction
2. Method
3. Results
4. Discussion
5. Conclusion
References
참고문헌 (18)
참고문헌 신청
[학술지(정기간행물)] - Cha, J.E. / 2006 / Haptic Modeler using Haptic User Interface / Journal of the HCI Society of Korea : 1031 ~ 1036
[인터넷자원] - Data.go.kr / 2017 / Traffic accident statistics, Department of Traffic Safety
[학술대회논문] - Doudou, M. / 2018 / Performance Specifications of Market Physiological Sensors for Efficient Driver Drowsiness Detection System / 7th International Conference on Sensor Networks
[학술지(정기간행물)] - Go, H.U. / 1997 / Analysis and Determination of Arousal Level Control to Prevent Drowsy Driving / Journal of The Korean Society Of Automotive Engineers : 1171 ~ 1176
[학술대회논문] - Grace, R. / 2001 / Drowsy Driver Monitor and Warning System / 1st International driving symposium on human factors in driver assessment, training and vehicle design : 64 ~ 69
[인터넷자원] - Data.go.kr / 2017 / Traffic accident statistics, Department of Traffic Safety
[학술대회논문] - Doudou, M. / 2018 / Performance Specifications of Market Physiological Sensors for Efficient Driver Drowsiness Detection System / 7th International Conference on Sensor Networks
[학술지(정기간행물)] - Go, H.U. / 1997 / Analysis and Determination of Arousal Level Control to Prevent Drowsy Driving / Journal of The Korean Society Of Automotive Engineers : 1171 ~ 1176
[학술대회논문] - Grace, R. / 2001 / Drowsy Driver Monitor and Warning System / 1st International driving symposium on human factors in driver assessment, training and vehicle design : 64 ~ 69
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