• The Journal of the Convergence on Culture Technology
• /
• v.9 no.4
• /
• pp.517-528
• /
• 2023

The purpose of this study is to analyze and compare UX factors of connectivity systems of domestic and overseas car brands. Using a text mining analysis, UX factors of domestic and overseas brands were compared through positive-negative sentiment index. After collecting 120,000 reviews on Hyundai Motor Group (Hyundai, Kia, Genesis) and 190,000 on Tesla, BMW, and Mercedes, pre-processing was performed. Keywords were classified into 11 UX factors in 3 dimensions of the system connection, information, and service. For domestic brands, sentiment index for 'safety' was the highest. For overseas brands, 'entertainment' was the most positive UX factor.

• Journal of Digital Contents Society
• /
• v.18 no.6
• /
• pp.1135-1142
• /
• 2017

In this paper, we propose IoT based smart CCTV security service to prevent crime in blind spot and prevent unexpected fire or danger. In the proposed method, a RC (Radio Control) car is made using Raspberry pie, and a camera and various modules are installed in an RC car. It was then implemented using Raspbian O / S, Apache Web Server, Shell script, Python, PHP, HTML, CSS, Javascript. The RC car provides a security service that informs the manager of the situation by judging the risk of the scene with modules such as video, voice and temperature. Experimental results show that the transmission time of video and audio information is less than 0.1 second. In addition, real-time status transmission was possible in AVG, emergency, and manual mode. It is expected that the proposed method will be applied to the development of smart city by applying it to unmanned vehicles, drones and the like.

• Journal of the Korean Home Economics Association
• /
• v.47 no.3
• /
• pp.55-65
• /
• 2009

By definition, smart clothing describes a garment whose functionality is enhanced by technological advancements in order to ease one’'s lifestyle. To know user’'s understanding and needs, the research had consisted of brainstorming sessions, personal interviews, focus group meeting, and a series of content analyses. Ten of the interview subjects and focus group panel were found by contacting women aged 56-64 in the Ithaca community, NY. They were prompted with general questions on style choices for their lifestyles and age group and then presented with two examples of smart clothing to discuss and critique. Meanwhile, the other three interview subjects, located outside of the Ithaca community, were aged either above or below the targeted bracket. These subjects were interviewed as a method of comparison on multiple levels. Findings had shown that there was indeed a need for smart clothing amongst the increasingly populated demographic of older women: devices to help one’'s body temperature regulation and vision problem, and well-designed clothing. However, the functionalities must be carefully constructed and conveyed in order to be taken seriously by the mainstream consumer market. Once successfully designed, the smart clothing will ideally create a greater sense of autonomy for older women.

• Venture DIGEST
• /
• s.117
• /
• pp.16-19
• /
• 2008

"벤처기업들이 첨단기술 개발에 중요한 역할을 수행하고 있고, 이 기술들이 관련 산업에 미치는 시너지 효과가 막대한 만큼, 벤처기업 육성을 통한 대중소기업 상생, 고용창출, 국가 경제성장에도 크게 기여할 것". 지난 3월 21일, 2009년 하이브리드카 양산을 선언하며 했던 정몽구 현대기아차 회장의 말이다. 이를 통해서도 알 수 있듯이 우리 벤처의 미래형 자동차 기술은 이미 성숙의 단계에 도달해있고 그 분야도 다양하다. 이번 호에서는 기계, 전자, 통신, 제어 기술 등을 기초로 이루어지는 우리나라의 지능형 자동차 분야 기술을 알아본다.

• Journal of Institute of Control, Robotics and Systems
• /
• v.21 no.1
• /
• pp.46-51
• /
• 2015

In this paper, we propose a vision-based method to recognize lane changes of an autonomous vehicle. The proposed method is based on six states of driving situations defined by the positional relationship between a vehicle and its nearest lane detected. With the combinations of these states, the lane change is detected. The proposed method yields 98% recognition accuracy of lane change even in poor situations with partially invisible lanes.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2014.07a
• /
• pp.253-255
• /
• 2014

본 논문에서는 스마트카의 핵심과제인 텔레매틱스와 자동차의 기술융합을 통해 더욱더 향상된 운전자의 안전과 편의를 제공하는 차량 HMI(Human Machine Interface) 시스템을 제안한다. 이 시스템은 차량에 장착된 카메라로 촬영한 도로의 이미지를 실시간으로 레퍼런스 데이터베이스와 매칭하여 도로를 인식하는 기술을 사용한다. 매칭된 레퍼런스 이미지와 운전자 맞춤 텔레매틱스 정보를 합성한 증강현실 영상을 운전자의 시선에 보이는 실제 도로와 지형의 모양에 맞추어 HUD(Head-Up Display)에 투사하는 매핑 기술을 통해 운전자가 운전 중 항시 도로에 집중하여 안전운행을 할 수 있도록 고안하였다.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2023.05a
• /
• pp.195-196
• /
• 2023

In this study, the mechanical properties, alkali-silica reaction(ASR) expansion and residual mechanical properties after ASR of waste glass fine aggregate(GS) mortar according to mineral mixture were evaluated. As a result, it was found that the mineral mixture reduces the ASR expansion. However, mechanical properties and residual mechanical properties have decreased.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2023.11a
• /
• pp.170-172
• /
• 2023

최근 자동차는 자율주행차 혹은 스마트카로 진화하며 다양한 외부 통신 인터페이스를 포함하고 있습니다. 각 기능 통제를 위해 차량 소프트웨어의 복잡성과 자동차 기술 발전에 따라 통신 인터페이스의 증가로 인하여 자동차에 대한 사이버 공격 가능성 및 위험성이 꾸준히 증가하고 있습니다. 특히, 커넥티드카의 안전을 위한 V2X(Vehicle to Everything)통신이 보안 취약점을 가질 경우, 이는 탑승자의 생명에 직접적인 위협을 초래할 수 있습니다. 그러나, 지능형 교통 시스템에서는 익명성을 위해 일정 시간이 지나면 차량의 식별정보를 변경해 공격자를 찾는데 어려움이 있다. 따라서 본 논문에서는 지능형 교통 시스템 내에서 이상행위를 유발하는 차량을 탐지하기 위해 V2X에 활용되는 표준 메시지 정보를 통해 식별하여 추적하는 기술을 제안하고자 한다.

• Journal of Digital Convergence
• /
• v.13 no.9
• /
• pp.297-302
• /
• 2015

The increase in applying IT to vehicles has given birth to smart cars or connected cars. As smarts cars become connected with external network systems, threats to communication security are on the rise. With simulation test results supporting such threats to Convergence security in vehicular communication, concerns are raised over relevant vulnerabilities, while an increasing number of studies on secure vehicular communication are published. Hacking attacks against vehicles are more dangerous than other types of hacking attempts because such attacks may threaten drivers' lives and cause social instability. This paper designed a Convergence security protocol for inter-vehicle and intra-vehicle communication using a hash function, nonce, public keys, time stamps and passwords. The proposed protocol was tested with a formal verification tool, Casper/FDR, and found secure and safe against external attacks.

• Convergence Security Journal
• /
• v.19 no.3
• /
• pp.71-79
• /
• 2019

The demand of smart cars is increasing rapidly. International stand organize such as 3GPP and 5GAA are proposing standard communication protocvols for connected-car, and automotive network infrastructure. But Smart car network have many security threats and more dangerous against the existed wire communication network. Typically, peripheral devices of a smart car may disguise their identity and steal location information and personal information about the vehicle. In addition, the infrastructure elements around smart cars can conspire and put driving cars in danger, threatening lives. This is a very serious security threat. Therefore, in order to solve these problems, we proposed a system that is secure from collusion and tampering attacks using attribute-based authorize delegation method and threshold encryption algorithms. We have demonstrated using a semantic safety model that the proposed system can be safe from collusion attack.