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차량 정보 시스템의 설계를 위한 인간공학적 연구 및 가이드라인 고찰
예진해,신종규,우종하,김상호,Yae, Jin Hae,Shin, Jong Gyu,Woo, Jong Ha,Kim, Sang Ho 대한인간공학회 2017 大韓人間工學會誌 Vol.36 No.5
Objective: This study is to provide a foundation for developing comprehensive ergonomic design guidelines for in-vehicle information systems (IVIS) by giving an overview of existing researches as well as setting further research directions. Background: The drivers get much more information recently while interacting with new safety functions of the cars. To avoid cognitive overload of the drivers, IVIS should be deigned appropriately by considering various human factors and task conditions. Method: We gathered, analyzed, and summarized ergonomic researches concerned with IVIS design conducted inside and outside Korea according to a categorization system proposed in the study. Frequency analysis was conducted for figuring out what kind of issues took major part of the researches, and their trends across time and regions. Results: Compared to domestic researches, those done in overseas tend to deal with more variety of independent, dependent and extraneous variables. The overseas researches also showed a tendency to get ahead in making ergonomic guidelines for IVIS design by adapting and integrating the results from previous researches. Conclusion and Application: There have been many researches regarding with ergonomic IVIS design, but some of their results became old-fashioned as the technology evolved. Not many researches have considered diverse human factors regarding the drivers' characteristics except age and gender. It is expected that researchers and designers take advantage of this study to find and review relevant results and set out issues of their own for more progressive researches of the field.
Kano 모델을 활용한 자율주행기술 수용성 구성 요인 조사 및 분류
예진해(Jin Hae Yae),김상호(Sang Ho Kim) 대한인간공학회 2018 대한인간공학회 학술대회논문집 Vol.2018 No.11
Objective: A new framework of technology acceptance model (TAM) is proposed to identify human factors and their effects on the constructs that comprise and determine the acceptance level of the technology. Background: Revolutionary socio-technical change is upcoming by autonomous driving but only a few researches have dealt with the social acceptance of this technology. Those previous researches rarely provide causes to reach such a level of technology acceptance and ways how to setup efficient strategy to enhance it. Method: We investigated the insufficiencies of the previous researches. To solve that a new research method was investigated. Results: Based on the Kano model, a new type of research framework is proposed considering the applicability and expected effects to the autonomous driving field. Conclusion: This framework adapts Kano model to categorize the construct with respect to the cohort human factors groups so that it can identify few critical constructs for the acceptance level of the individual groups. Application: The framework is going to be validated by ongoing further researches.
졸음운전자의 각성을 위한 햅틱 경고신호의 설계 및 평가
김상호(Sang Ho Kim),예진해(Jin Hae Yae),신종규(Jong Gyu Shin),최경임(Kyung Im Choi) 대한인간공학회 2018 大韓人間工學會誌 Vol.37 No.3
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.