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A System Framework for Map Air Update Navigation Service
Kyoungwook Min,Kyounghwan An,Insung Jang,Sungil Jin 한국전자통신연구원 2011 ETRI Journal Vol.33 No.4
The quality of navigation service is determined by the accuracy of the available data. For existing navigation services, a full map update is provided in order to keep the map data of mobile devices current. As content and services of mobile devices have recently been diversifying, the size of map data managed in mobile devices has increased, reaching several gigabytes in size. It generally takes tens of minutes to write several gigabytes of data into mobile device storage. For traditional navigation systems, a complicated storage structure called a physical storage format (PSF) is used to assure maximum processing performance of map data in mobile devices within limited resources. Consequently, even though modified navigation map data actually affects only a portion of a map, the full map data is updated because partial updates are not possible. In this paper, a navigation system is studied to solve this difficult partial map update problem. The map air update navigation system, which is the result of this study, provides real-time partial map updating using wireless communications.
Kyoungwook Min,Jeongdan Choi,Hangeun Kim,Hyun Myung 제어로봇시스템학회 2012 제어로봇시스템학회 국제학술대회 논문집 Vol.2012 No.10
The autonomous valet parking technology is a vehicle and IT convergence technology which drives automatically to the target parking lot without any human intervention. To realize auto-valet parking service, the movement of the vehicle is able to be controlled and spatial environments should be recognized in real-time by sensor fusion. Most fundamental technology for autonomous driving and parking service is to generate path to goal parking lot and generate control command continuously to follow the path. The path has to be generated as considering the dynamics of the vehicle and the driving path and the parking path are generated with different data structure and algorithm because the vehicle is able to follow the parking path which is short distance under 5km/hr slowly. And the smooth curve fitting is needed to follow the driving path but not to follow the parking path. In this paper, we have designed and implemented the path generation algorithms which are able to be followed parking after driving continuously as considering vehicle kinematics.
A Control System For Autonomous Vehicle Valet Parking
Kyoungwook Min,Jeongdan Choi 제어로봇시스템학회 2013 제어로봇시스템학회 국제학술대회 논문집 Vol.2013 No.10
The autonomous vehicle valet parking service (AVP) enables a vehicle to drive and park without any human interaction. The driverless vehicle has to follow the scheduled route and be parked in a parking lot automatically. Most fundamental technologies for autonomous vehicle valet parking service are controlling vehicle driving and parking. For autonomous driving, the path to near goal parking lot has to be generated and control commands to follow the path have to be generated continuously. For autonomous parking, the controlling vehicle steer value has to be found to park the vehicle at a parking lot well. We have used two turning radius circles to find vehicle steering control value about perpendicular and parallel parking method basically. These two vehicle turning radius circles are minimum radius circles in initial and are updated in real time as vehicle stop location in parking mode. In this paper, we have developed the control system for autonomous vehicle valet parking service in parking area with low speed limited.
‘신중국(新中國)’ 잔혹사(殘酷史)에 대한 은밀한 풍자와 비판 - ≪관추편(管錐編)ㆍ사기회주고증(史記會註考證)≫ 제칠(第七)ㆍ팔칙찰기(八則札記)
閔庚旭 ( Min Kyoungwook ) 중국어문연구회 2020 中國語文論叢 Vol.0 No.101
The search for genuine creative motives, principles of creation, and main subject of Guanzhui bian remain a long-term academic cold case despite it’s importance and attention. This article is one of a series of attempts to identify this. Chapter 2 analyzes the creative motive of the seventh paragraph of shiji in Guanzhui bian. Through this, it will be revealed that this paragraph is actually based on Guo Moruo’s < Essays on Suiyuanshihua >, and the hidden theme of this paragraph is the brutal political repression and restrictions on freedom under the socialist ideology. It also reviews the relationship between this paragraph and George Orwell’s Animal Farm. Chapter 3 analyzes the creative motive of the eighth paragraph of shiji in Guanzhui bian. Through this, it will be revealed that this paragraph is actually based on the < Second documents on Hu Feng anti-party gruop > published in the People’s Daily, and the hidden theme of this paragraph is satire and criticism on the pressure on discussion and freedom of speech in the Hu Feng incident. In addition, the significance of Guanzhui bian as resistance literature is reviewed. In the conclusion, the reason why Qian Zhongshu intends to confront Maoism, which was the main ideology of mainland China at the time, through his writings in Guanzhui bian, in terms of ideological resistance to Mao’s oppression of Liberalism.
민경욱(KyoungWook Min),박재혁(JaeHyuck Park),김주영(Jooyoung Kim),최정단(JeongDan Choi) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.11
자율주행 기능에서 정지차량 회피 기능은 가장 기본 기능 중에 하나이다. 정지차량 회피를 하기 위해서는 차량의 상태를 정확하게 파악해야하지만, 기존에는 휴리스틱한 방법으로 회피 일부 기능을 구현해 왔다. 즉, 전방 주행차로에 위치한 차량이 정지상태이고, 옆차로의 차량이 주행중인 상황인 경우에, 일정시간 대기했다가 회피하는 방식에 대한 제한적인 기능구현이었다. 본 논문에서는 정지차량의 상태를 파악하기 위하여 차량 후미등을 기계학습으로 인식하고 후미등과 고정밀 맵을 융합하여 상황인식을 통해 회피 결정을 하고 회피하기 위한 지역경로를 생성하는 회피 기능을 구현하였다.