• Convergence Security Journal
• /
• v.8 no.2
• /
• pp.27-34
• /
• 2008

In this paper, we designed and implemented mobile object automatic system based on senor networks for telematics. For developing this system, we gather the various sensing data through wireless communication method using zigbee sensor networks and analyze them in monitoring equipment. And we enable the driver to recognize the car state information on the whole by interfacing analyzed data to telematics unit. And, we implemented automatic controller that can control temperature and humidity in car automatically by actuating air conditioner based on the data that was monitored throughout temperature sensor, humidity sensor and brightness sensor based on sensor networks.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.1 no.1
• /
• pp.33-40
• /
• 2002

This paper presents the evaluation result of the Namsan 1st tunnel traffic information system, which is providing the real time queue length status and incidence information inside of the Namsan 1st tunnel, 1600meters long in the Seoul metropolitan CBD. This information system plays an important role because of notifying drivers to pay a toll for the tunnel path, the congestion information in advance. According to the analysis, an evident improvement on the tunnel path and its bypass without any conspicious adverse impact. Furthermore, survey analysis found that motorists placed a high value on the provided information. During peak time, the system turned out to help motorists to relax their hasty minds. As well, several performance indices showed the reduction of congestion and travel time variation on both of the tunnel path and its bypass, in spite of no traffic information on the bypass.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2011.10a
• /
• pp.489-492
• /
• 2011

자동차 운전자는 자신의 자동차 보험료를 할인 받고자 특약제도를 이용한다. 이 중 이미 외국에서 시행되어 좋은 호응을 받아 국내에서도 시행 되고 있는 승용차 요일제 보험이 있다. 승용차 요일제 보험에 가입하기 위해 의무적으로 장착해야 하는 자동차 운행정보 확인 장치는 예비가입자들로부터 많은 관심을 받고 있다. 하지만 보험가입자(운전자)가 보험사에 운행정보확인장치의 차량운행기록을 보내기 위해 다소 번거로운 과정을 거쳐야 한다. 본 논문에서는 보험개발원에서 제시한 '자동차 운행정보 확인 장치 인증규정'을 바탕으로 보험가입자가 편리하게 차량운행기록을 보험사에게 보내기 위해 단거리 무선통신이 내장되어 있는 자동차 운행 정보 확인 장치의 하드웨어 설계와 이것을 활용한 보험사의 운행정보 수집 시스템에 바로 전송할 수 있는 스마트폰 단말기 모니터 프로그램의 설계에 대해 연구하였다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2023.07a
• /
• pp.439-440
• /
• 2023

본 논문에서는 차량의 상태를 실시간으로 모니터링하고, 중요한 정보를 운전자에게 효과적으로 제공하는 시스템을 제안한다. 본 논문에서 개발한 차량 운행 정보시스템은 블루투스 OBD2 커넥터를 통해 차량의 PID 값을 식별 및 수집하고, 이를 라즈베리파이와 7인치 터치 디스플레이를 이용하여 운전자에게 한눈에 보일 수 있는 형태로 정보를 제공한다. 수집된 데이터는 실시간으로 SD 카드에 저장되며, 차량에 이상이 생겼거나 사고가 발생했을 때, 이를 입증하기 위한 참고자료로 활용될 수 있을 것으로 기대된다.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.16 no.6
• /
• pp.1125-1132
• /
• 2012

The researches on driver assistance systems that can prevent an accident have been actively performed due to social issues of traffic accidents with development of vehicle industry in recent. It is required for researchers to develope systems which assist driver's perception and judgment when considering that over 70% of traffic accidents occur by drivers' carelessness and 75% of the total accidents occur at the speed of less 29km per hour. In this paper, we implemented a front and rear vehicle monitoring system that monitors distance from a vehicle to obstacles in real-time at the low-speed or back-ward driving. The proposed system consists of ultrasonic sensors of high angle and wide angle of beam spread, ATmega128, and DSP processor.

• Journal of the Institute of Electronics Engineers of Korea TC
• /
• v.48 no.6
• /
• pp.41-50
• /
• 2011

This article is concerned with the technology to provide car driver the car's status which are composed of car trouble code in car engine and many sensors. In addition, it installs vehicle diagnostic programs on wireless communication's portable device, for example, Smart phone, PDA, PMP, UMPC. As a result, this is to provide car manager with many information of car sensors when we go to car maintenance. it can monitor relevant information on vehicle by portable device in real time, alert drivers with specific messages and also enable them to address abnormalities immediately. Moreover, the technology could help the drivers who perhaps don't know very well about their vehicles to drive safely and economically as well; the reason is because the whole system is composed of just Vehicle-information collecting device and personal wireless communication's portables and transfers the relating data to server computers through wireless network in order to handle information on vehicles. This technology make us monitor vehicle's running, failure and disorder by using wireless communication's portable device. Finally, this study system is composed of a lot of application to display us the car's status which get car's inner sensor information while driving a car.

• Science of Emotion and Sensibility
• /
• v.7 no.3
• /
• pp.27-35
• /
• 2004

This study has investigated a psychological status of optimal and pleasant driving condition by measuring various physiological signals using SCR(skin conductance response), PPG(peripheral plethysmograph), SKT(skin temperature) and HR(heart rate). The physiological response was measured during various simulated driving conditions. We developed a hardware and algorithm to measure and analyze the physiological response. The physiological signals has reflected the level of driver's tension or relaxation as well as the heart rate. The emotional responses of drivers were also measured and analyzed in this experiment. The result of the study can be used to design a system to enhance the driver's emotional satisfaction as well as to monitor the driver's safety and health condition.

• Journal of the Korean Society of Radiology
• /
• v.17 no.7
• /
• pp.1179-1187
• /
• 2023

Recent advancements in modern transportation have led to the active development of various biomedical signal and medical imaging technologies. Particularly, in the field of cognitive/neuroscience, the importance of electroencephalography (EEG) measurement and the development of accurate EEG measurement technology in moving vehicles represent a challenging area. This study aims to extensively investigate and analyze the trends in technology research utilizing EEG during driving. For this purpose, the Scopus database was used to explore EEG-related research conducted since the year 2000, resulting in the selection of about 40 papers. This paper sheds light on the current trends and future directions in signal processing technology, EEG measurement device development, and in-vehicle driver state monitoring technology. Additionally, a ultra compact 32-channel EEG measurement module was designed. By implementing it simply and measuring and analyzing EEG signals, in-vehicle EEG module's functionality was checked. This research anticipates that the technology for measuring and analyzing biometric signals during driving will contribute to driver care and health monitoring in the era of autonomous vehicles.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.37 no.8C
• /
• pp.711-720
• /
• 2012

In this paper, we introduce the implementation of driver fatigue monitering system and its result. Input video device is selected commercially available web-cam camera. Haar transform is used to face detection and adopted illumination normalization is used for arbitrary illumination conditions. Facial image through illumination normalization is extracted using Haar face features easily. Eye candidate area through illumination normalization can be reduced by anthropometric measurement and eye detection is performed by PCA and Circle Mask mixture model. This methods achieve robust eye detection on arbitrary illumination changing conditions. Drowsiness state is determined by the level on illumination normalize eye images by a simple calculation. Our system alarms and operates seatbelt on vibration through controller area network(CAN) when the driver's doze level is detected. Our algorithm is implemented with low computation complexity and high recognition rate. We achieve 97% of correct detection rate through in-car environment experiments.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2012.10a
• /
• pp.418-420
• /
• 2012

최근 자동차 산업의 활성화로 인해 교통사고가 문제화 되면서 사고를 미연에 방지할 수 있는 운전자 보조시스템 연구가 활발하게 이루어지고 있다. 그 중 AVM 시스템(Around-View Monitoring System)에 대한 연구 및 개발이 활발해 지고 있다. 기존 AVM 시스템은 차량 주변 상황을 실시간으로 제공하기 위해 임베디드 시스템 또는 SoC(System on Chip)의 형태로 개발되었다. 그러나 Car PC가 차량에 장착되면 AVM 시스템을 추가의 비용이 없이 소프트웨어만으로 시스템을 개발할 수 있다. 본 논문에서는 Car PC 기반의 AVM 시스템 기능에 위치 정보 기능을 추가하여 위치정보를 제공하는 AVM 시스템을 구현하고자 한다.