• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2016.05a
• /
• pp.241-243
• /
• 2016

In the Past, Trend of car security was Physical Something like doorlock system, and The Generation did not have skills connecting External devices. Through Car Development is up, that trend of car security Changed Physical Security to Intelligence Security. This Changes give a chance to hackers to attack this system. This System use CAN(Controller Area Network) Protocol which have three vulnerabilities. First, ID Spoofing, Twice, D - Dos Attack, Third, Android Application Injected Modern cars have many ECU(Electronic Control Unit) to control devices like Engine ON/OFF, Door Lock Handling, and Controlling Handle. Because CAN Protocol spread signal using broadcast, Hackers can get the signal very easily, and Those often use Mobile devices like Android or IOS to attack this system. if bluetooth signal is spread wide, hackers get the signal, and analysis the bluetooth data, so then They makes certain data to attack ECU, they send the data to ECU, and control ECU installed car. so I suggest that I will prevent this attack to make Auth system and prevent this attack in end of Android.

• Proceedings of the KSR Conference
• /
• 2011.05a
• /
• pp.870-873
• /
• 2011

The circumstance as platform and tunnel is very important in evacuation from passenger train car on fire. The comparison of egress modeling by SIMULEX, PATHFINDER, STEPS was conducted in order to analyze for the influence of platform to egress from subway car. Model subway car is seoul metro subway car. Model platform was designed by code 'Complementary design guide for connecting and convenience facilities, and urban subway station'.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.14 no.4
• /
• pp.86-94
• /
• 2015

In recent days, a Connected Car has caught an attention of the motor companies and various industrial institutes such as communication company. An automobile is regarded as a device and has been developed as an interactive system because the system is connected with various device. This drives a new business item, too. As a new automatic car technology is emerging, a new type of car accident is appeared, too. So, many researches for preventing car accident comes from the driver's are carried out in many car related institutes. In this paper, we study a driver's driving workload and develop an algorithm that measures the driver's driving behavior. We can see that the developed algorithm runs well by the experiment of road test. This results affects various road condition, driver's driving behavior and load that reflects the driver's status.

• Journal of Institute of Control, Robotics and Systems
• /
• v.5 no.1
• /
• pp.105-114
• /
• 1999

By using the conceptual impedance and the elasticity of a serial chain of spring-damper system, a real-time collision-free trajectory generation algorithm is proposed. The reference points on a trajectory connected by the spring-damper system have a mechanism for self-Position adjustment to avoid a collision by the impedance, and the local adjustment of each reference point is propagated through the elasticity to a real robot at the end of the spring-damper system. As a result, the overall trajectory consisting of the reference points becomes free of collision with environmental obstacles and efficient having the shortest distance as possible. In this process, the reference points connected by the spring-damper system take role of virtual robot as global guidance for a real robot, and a cooperative optimization is carried out by the system of virtual robots. A control algorithm is proposed to implement the impedance for a car-like mobile robot.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2017.04a
• /
• pp.358-361
• /
• 2017

사물인터넷은 각종 사물에 센서와 통신 기능을 가능한 매개체를 부착하여 실시간으로 데이터를 인터넷으로 주고받는 환경이나 기술을 의미한다. 인터넷으로 연결된 사물들이 데이터를 주고받아 스스로 분석하고 학습한 정보를 사용자에게 제공하거나 사용자가 이를 원격 조정할 수 있는 기술융합의 한 패러다임이다. 오늘날의 자동차 업계에서도 이를 적용하기위한 연구가 활발히 진행되고 있다. 이러한 네트워크 기술들이 융합 및 적용될 자동차를 커넥티드 카(Connected Car)라 하고, 커넥티드 카란 즉 인터넷과 모바일 기기, 그리고 나아가 운전자와 연결된 자동차를 의미 한다. 본 논문에서는 커넥티드 카의 개념과 주요 센서 기술 등을 설명하고 차후 발전 가능성이 높은 차량 네트워크 기술들에 대해 서술한다.

• Proceedings of the KIEE Conference
• /
• 2006.07b
• /
• pp.1099-1100
• /
• 2006

The running of the electric train are done by powering, breaking and coasting. Powering to start and accelerate the rolling stock means driving the three-phase electric induction motors controlled by VVVF inverters which are connected to overhead power line directly(DC) or indirectly(AC, DC/AC). Breaking is achieved by blending control which is the proportional combination between regenerative breaking of VVVF inverter and air pressure control of breaking operating unit(BOU). Therefore, Data obtained during two operation are very important items to evaluate the running performance of RS. This paper has investigated in real time data acquired from VVVF inverter and measured by pressure sensor directly connected to air breaking line(motor car and trailer car). By analyzing data in the region of time and frequency, fundamental methods for eavaluating the running performance of RS quantitatively and objectively have been suggested.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2017.07a
• /
• pp.305-306
• /
• 2017

본 논문에서는 커넥티드 카 서비스의 사용자경험 디자인을 위한 평가 요인을 제안한다. 모바일 및 IoT기술의 발전과 더불어 자율주행 자동차에 대한 관심이 증가하고 있는 가운데 네트워크와의 연결을 통한 다양한 디지털서비스 제공 플랫폼 경쟁이 가속화되고 있다. 플랫폼 개발을 위한 기술적 연구는 빠르게 진행되고 있으나 실재 서비스 소비의 주체인 사용자 관점에서의 연구는 아직 미비하다. 경쟁이 가속화 될수록 커넥티드 카 구현 기술은 평중화될 것으로 예상되어 결국 커넥티드 카 서비스의 핵심 쟁점은 주행 중 서비스 사용자의 긍정적 경험이 될 것으로 예측된다. 따라서 본 논문에서는 커넥티드 카에서 제공되는 기능과 이에 따른 주요 서비스 요인들을 살펴보고 자동차 구매에 영향을 미치는 사용자경험 요인을 도출하여 둘의 상관관계를 실증적으로 분석함으로써 앞으로 등장할 차세대 커넥티드 카 서비스 및 플랫폼의 사용자 경험평가 요인을 도출하고자 한다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• v.12 no.12
• /
• pp.5669-5684
• /
• 2018

The new mobile edge network architecture has been required for an increasing amount of traffic, quality requirements, advanced driver assistance system for autonomous driving and new cloud computing demands on highway. This article proposes a hierarchical cloud computing architecture to enhance performance by using adaptive data load distribution for buses that play the role of edge computing server. A vehicular dynamic cloud is based on wireless architecture including Wireless Local Area Network and Long Term Evolution Advanced communication is used for data transmission between moving buses and cars. The main advantages of the proposed architecture include both a reduction of data loading for top layer cloud server and effective data distribution on traffic jam highway where moving vehicles require video on demand (VOD) services from server. Through the description of real environment based on NS-2 network simulation, we conducted experiments to validate the proposed new architecture. Moreover, we show the feasibility and effectiveness for the connected car media service on highway.

• Proceedings of the KSR Conference
• /
• 2008.11b
• /
• pp.1697-1702
• /
• 2008

The objective of the review is to introduce the evaluation method of welding joint designs by using forces extracted from FE models. This evaluation method is currently being used for the Southeastern Pennsylvania Transportation Authority (SEPTA) project in the United States by request of the customer Engineer. The evaluation method was applied to critical joints connected by Fillet or Partial Joint Penetration (PJP) welds in car body structure for SEPTA project. The additional manual analysis is required based on the fact that Technical Specification in the United States requires the Contractor to apply Complete Joint Penetration (CJP) welds to all structural connections in Car body. However, in the car body design for Septa project there are some areas where CJP welds are not applied due to structural and manufacturing problems.

• Journal of Information Technology Services
• /
• v.18 no.1
• /
• pp.201-217
• /
• 2019

Cars have become a necessity in modern life. It is widely used to transport people or products to a destination conveniently. However, the addition of a navigation service that provides route information and more makes driving more convenient and safer. Recent developments in the mobile app ecosystem encourages people to adopt not only an installation-type car navigation, but also a mobile app navigation, supporting connected car concepts. It should be noted that mobile apps with mobile Internet can be a significant linkage between information acquired online and offline business. This study demonstrates the impact of the app use experience for a driver in the context of applying artificial intelligence service. As a result, the introduction of artificial intelligence services has a statistically significant moderating effect on the use of mobile navigation apps. This seminal research is valuable as it evaluates the role of artificial intelligence applied to mobile navigation apps.