• 제목/요약/키워드: Driver part

검색결과 264건 처리시간 0.023초

Development of 2.32-inch $320{\times}350$ LTPS TFT-LCD for Advanced Mobile Phones Using SLS Technology

  • Zhang, Lintao;Kang, Myung-Koo;Lee, Joong-Sun;Park, Jong-Hwa;Joo, Seung-Yong;Moon, Kuk-Chul;Kim, Il-Kon;Kim, Sung-Ho;Park, Kyung-Soon;Yoo, Chun-Ki;Kim, Chi-Woo
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.II
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    • pp.1035-1037
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    • 2005
  • 2.32-inch $320{\times}350$ TFT-LCD with high resolution (206PPI) for advanced mobile phones could be successfully developed. The compact pixel design based on PMOS SLS technique is used to achieve this high resolution. Gate driver and part of data driver are integrated onto the glass substrate. High brightness (170cd) and contrast ratio (400:1) were obtained with very low flickering and crosstalk levels.

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청각 주변 자극의 효과를 고려한 효율적 차량-운전자 상호 연동 모델 구현 방법론 (Implementation of the Perception Process in Human‐Vehicle Interactive Models(HVIMs) Considering the Effects of Auditory Peripheral Cues)

  • 나종관;박민용
    • 대한인간공학회지
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    • 제25권3호
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    • pp.67-75
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    • 2006
  • HVIMs consists of simulated driver models implemented with series of mathematical functions and computerized vehicle dynamic models. To effectively model the perception process, as a part of driver models, psychophysical nonlinearity should be considered not only for the single-modal stimulus but for the stimulus of multiple modalities and interactions among them. A series of human factors experiments were conducted using the primary sensory of visual and auditory modalities to find out the effects of auditory cues in visual velocity estimation tasks. The variations of auditory cues were found to enhance/reduce the perceived intensity of velocity as the level changed. These results indicate that the conventional psychophysical power functions could not applied for the perception process of the HVIMs with multi-modal stimuli. 'Ruled surfaces' in a 3-D coordinate system(with the intensities of both kinds of stimuli and the ratio of enhancement, respectively for each coordinate) were suggested to model the realistic perception process of multi-modal HVIMs.

속도제한 지원장치에 대한 운전자 인식도 및 도로환경 분석 (A study on Korean drivers' acceptance and traffic sign conditions assessment for Speed Assistance Systems)

  • 이화수;조재호;임종현;이홍국;장경진;유송민
    • 자동차안전학회지
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    • 제7권3호
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    • pp.30-34
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    • 2015
  • This study examined the Korean drivers' acceptance of SAS(Speed Assistance systems) and traffic sign conditions in Korea roads for SLIF(Speed Limit Information Function) that is a part of SAS. Exceeding the speed limit is a factor in the severity of many road accidents and SAS would help the driver to observe a speed limit by warning and/or effectively limiting the speed of the vehicle. SAS are in the initial phase in Korea, Korean drivers could not be familiar with automatical speed limiting during driving, SAS interface design would be considered to be more readily acceptable to the public. And advanced SAS have been introduced onto the market which are able to inform the driver of the current speed limit based on camera and/or digital maps based SLIF. These systems are based on external data using sensors, so environmental conditions are an important factor which could cause malfunction of SLIF functions.

도시철도의 열차출입문제어에 관한 연구 (A Case Study for SMRT Train Open Doors Control System)

  • 원유덕;심원섭
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2006년도 추계학술대회 논문집
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    • pp.941-946
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    • 2006
  • It followed in system development and SMRT(Seoul Metropolitan Rapid Transit Co)System reached to an automatic train operation(ATO) and driverless operation(DLM) from the manual operation due to the train driver. The train like the general bus or the car vehicle was not serial riding in a car and the Parallel concept which the numerous passenger rides in a car simultaneously occur frequently the charge of the train driver unmanned bitterly from existing manual handling was a possibility of doing, train open door control(ODM) which bites also ATO, it handles it minimized. Like this ATO/DLM, the control system which bites being a Wayside to Train communication for immediacy, it is a system of the Vital concept the immediacy of the citizen Data evil the radio information transmission and the train of the interface which is accurate from unmanned operation and, will decipher, will accomplish it will guarantee. It respects the passenger accident prevention and an air question environment improvement from subway platform and phul leys the screen door of Platform(PSD) with the fire tube frost it refers and part it treats and to sleep it does, ODM which bites is accuracy and immediacy of altitude and when seeing from the viewpoint which demands the trust of altitude, ODM system the trust of car incest interface in the equipment construction which is safe and the comparative analysis back of the system analysis against the control which bites and case study and other subway system it leads from the research which it sees and signal - train in base grudge to sleep it contributes it does.

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능동형 커넥티드 카를 위한 IoT기반 원격제어 시스템의 설계 및 구현 (The Design and Implementation of IoT based Remote Control System for Active Connected Cars)

  • 이윤섭;장문석;최상방
    • 한국산업융합학회 논문집
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    • 제22권6호
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    • pp.703-709
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    • 2019
  • This paper proposes a monitoring and remote control system, an essential part of In Vehicle Infotainment (IVI) and Human Vehicle Interface (HVI) to provide safety and convenience to a driver. The system utilizes Bluetooth for a short range communication and utilizes WCDMA for a long range communication to enhance efficiency. In this paper, an integrated controller, which integrates a CAN communication module, a Bluetooth communication module, a WCDMA communication module, is designed to control a car. Also, a remote server for managing data is designed to provide real-time monitoring and remote control for a user via smart devices. Experiment results show that all the proposed remote control, driving log, real-time monitoring, and diagnostics functions are working properly. With the proposed system, a driver can drive safely by monitoring and inspecting a car before driving via smart devices, and control conveniently by controlling a car remotely.

차체의 충돌에 관한 시뮬레이션 해석 (Simulation Analysis on Impact of Automotive Body)

  • 조재웅;민병상;한문식
    • 한국생산제조학회지
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    • 제18권5호
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    • pp.477-482
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    • 2009
  • This study analyzes the result with dynamic simulation about deformation according to time when a car impacts bollard. These results are shown as followings. The maximum deformation is shown at the lower part of front grass in case of the impact of front or passenger seat but this deformation is shown at the lower part of rear bumper in case of double impact. The maximum equivalent stress is shown at the upper part by the side grass of driver seat at the elapsed time of 0.00075 second after impact in case of the impact of front or passenger seat but this deformation is shown at the front bonnet at the elapsed time of 0.004 second after the additional impact in case of double impact. The maximum total deformation or equivalent stress is shown nearly same in case of the impact of front or passenger seat. But the value of this deformation or equivalent stress in case of the impact of front or passenger seat is shown with 2 times or more than 17% respectively as this value in case of double impact.

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An Intelligent Auto Parking System for Vehicles

  • Razinkova, Anastasia;Cho, Hyun-Chan;Jeon, Hong-Tae
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제12권3호
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    • pp.226-231
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    • 2012
  • Autoparking assistant systems are a new and very promising area in automotive systems engineering. Since the traffic in modern cities becomes more intense, it is getting harder for a driver. Those systems are necessary for an inexperienced one to find a proper parking slot, or to park in a narrow parking slot without damaging his car or the vehicles around. The implementation of autoparking assistant systems may reduce drivers' stress and make parking generally more comfortable. In addition, such system can be extremely useful for senior or disabled people or for drivers with reduced mobility. The implementation of autoparking assistant systems may increase the safety of the parking, and therefore the development of such systems is a highly-demanded task. We introduce an intelligent autoparking system that automatically generates trajectory for parking using a fuzzy logic. This paper consists of three parts. In first part we introduce trajectory generation method for parallel parking without collisions. Fuzzy-logic based trajectory generation algorithm is described in second part. Experimental results presented in the third part of the paper prove effectiveness of the proposed method.

심부투열용 고주파 치료기의 제작과 RET 전극조건에 따른 온도 분포 특성 (Fabrication of high-frequency therapy device for deep part and temperature distribution characteristic according to electrode condition of RET)

  • 정재원;김병주;김기선
    • 공학기술논문지
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    • 제11권4호
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    • pp.267-271
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    • 2018
  • A high-frequency therapy device with improved output by modifying a high-frequency stimulator was fabricated. The details of the design include generating part design, high-frequency transformer design, large output FET installation, DC voltage input part design and gate input driver design. Based on the real test using the pork meat, the temperature distributions according to the current electric transfer method, penetration depth, electrode diameter size were measured. In the CET method, the penetration depth was 0.5 cm and in the RET method, the penetration depth was 20 cm or more. In addition, it was confirmed that the temperature rise according to the penetration depth in the RET system was substantially constant, and the temperature rise was remarkable as the electrode diameter was small. As a result, it has been confirmed that the high frequency therapy device is highly affected by various conditions of the electrode.

고속도로 VMS Message Set 연구 및 이용자 선호도 평가 (A Study on Message Set of VMS on Express way and Evaluation of Driver's Preference)

  • 김남선;지동목;오영태;이환필;김상복
    • 한국ITS학회 논문지
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    • 제8권4호
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    • pp.1-13
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    • 2009
  • 도로전광표지(VMS;Variable Message Sign)는 지능형교통시스템의 세부시스템중 하나로 도로이용자에게 실시간으로 교통정보를 제공하여 교통흐름을 원활하게 하는 기능을 가지고 있다. 그러나 현재 고속도로 구간의 VMS운영현황을 조사한 결과, 현시운영측면에서 메시지판독횟수가 정의되지 않아 적정현시운영에 어려움이 있으며, 정보제공측면에서 VMS 설치구간의 특성고려가 미흡하여 운전자의 혼란을 유발시키는 문제점이 드러났다. 세부적으로 문안표출시 글자체(Font), 표출전환방식, 정렬방식, 표출메시지 구성의 통일성이 결여되어 있고 불필요한 단어사용과 통일되지 않은 동일의미의 여러 용어를 사용하는 등 효과적인 정보전달체계에 개선이 필요한 것으로 분석되었다. 이에 본 연구는 VMS 운영관련지침 및 연구분석결과를 토대로 VMS 설치위치별 요구기능과 적정현시수의 정의 등의 효율적인 표출방안을 수립하였다. 세부표출방안으로 제공글자체, 메시지 전환방식, 정렬방식을 통일하였고, 운전자의 직관적인 메시지 판독이 가능하도록 상황별로 표출색상을 정의하였다. 본 연구에서 제시한 개선안의 평가를 위해 일반운전자들을 대상으로 기존안과 개선안의 선호도평가와 통계분석을 실시하였다.

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상표자산이 구매의도에 미치는 영향: 중국패션시장에서 (Brand Equity and Purchase Intention: The Fashion Market in China)

  • 이동해;최영로
    • 유통과학연구
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    • 제13권7호
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    • pp.85-90
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    • 2015
  • Purpose - Global trends play a part to change the structure of the fashion industry. In particular, companies attempting to conduct innovative marketing centering on such products as SPA brands are growing into global companies. SPA stands for "Specialty Store Retailer of Private Label Apparel", meaning its activities are fully integrated from manufacturing through sales, including material procurement design, product, distribution, inventory management, and final sales. For this reason, more understanding of individual corporate profitability is very sensitive to consumer's attitudinal changes. The effects that corporate marketing activities on customer lifetime value through brand attitude were analyzed based on a structural equation model. Rust suggested value equity, brand equity, and relationship equity as customer equity driver. The study examines Chinese consumer because China is the fastest growing fashion market in the world. Research design, data, and methodology - The survey targeted Chinese college student age 20s. Only respondents who had purchased SPA brands in the past year were included for this research. A total of 303, except for 47 missing data of 350 distributed questionnaires were included in this research. The questionnaire is consists of six part to measure value, brand, relationship equity, attitude toward brand, purchase intention and demographic characteristics. This research conducted exploratory factor analysis and reliability test. To verify research hypotheses, structural equation model test was conducted. As for customer equity, diversified models in consideration of the scope of acquisition data, a method of collection of data, influencing factor, and predictability were suggested based on a net present value model. However, the history of customer equity study is relatively short, and sufficient empirical analyses have not been conducted, so more integrated analysis is required. In this study, the concept of driver suggested by Rust was applied to figure out the effects that consumer's attitude has on customer equity. The customer equity driver suggested by them consists of brand equity, value equity, and relationship equity. Results - This study reveals that value equity and brand equity have a positive influence on relationship equity. And, relationship equity has a positive influence on purchase intention through brand attitude. However, value equity and brand equity do not influence on brand attitude. Conclusion - The results of this research generated following implications. First, SPA brands need to take advantage of their value equity such as perceived low price and up-to-date fashion style to attract Chinese young consumer. Second, strong brand equity promises dominants position in the competitive market. As Chinese fashion market grows rapidly, SPA brands can consider branding strategy such as flagship store and celebrity marketing enhancing brand image. Third, the core concept of customer equity strategy is to maintain a relationship with their expecting and existing customers. The relationship equity is built by brand equity and value equity. When SPA brands serves product and service meet with individual customers, customers have intimacy to the brands.