목적: 시각 장애인이 이용하는 시각 보조 수단에 보이는 대상을 검출해 내는 성능을 개선하고 장애물에 대한 정보를 효과적으로 전달할 수 있는 시각 장애인용 안경을 개발하기 위한 시스템의 하나인 영상정보 전달방법을 개발하고자 한다. 방법: 시각장애인을 위한 안경시스템을 개발하기 위해서는 첫째는 안경에 장착되어 영상정보를 획득하는 카메라부와 둘째는 획득한 영상정보로부터 문자정보를 추출하고 보행경로를 안내하기 위한 맵이 탑재된 휴대 단말시스템, 셋째는 카메라 및 휴대 단말을 제어하거나 휴대 단말로 부터 촉각에 의한 정보를 출력받기 위해 입출력수단이 지팡이 손잡이를 개발하여야 한다. 이 중 시각장애인을 위한 안경시스템 개발 중 영상정보부(카메라부)를 안경에 부착하여 도면을 제시하였다. 결과: 카메라부는 기술적 구성에서 안경에 부착됨으로 시각장애인이 응시하는 방향의 객체를 촬영할 수 있게 된다. 즉 시각장애인이 책을 바라보거나 거리에서 간판을 바라보는 경우 이를 영상정보로 획득할 수 있게 된다. 특히 카메라부와 셔터가 서로 분리되어 있어 피사체를 응시한 상태에서 흔들림 없이 피사체를 촬영할 수 있다는 검에서 영상을 통한 정보획득이 비교적 정확하다는 효과가 있다. 상기의 안경은 보행경로 상에 위치하는 장애물을 감지 하여 장애물에 대한 정보를 제공하기 위한 센서부가 더 구비하게 된다. 결론: 시각장애인을 위한 안경시스템을 개발하기 위해서는 영상정보를 획득하는 것 뿐만 아니라 획득된 정보를 전달하고 출력하기 위한 지팡이부와 안경시스템(영상정보부)를 연결시 스템개발이 이루어져야 할 것으로 사료된다.

As the number of tourists visiting Seoul are continuously increasing, the demand of an integrative tour pass is also increasing. However, only a few tour passes are available for the tourists in Seoul. In this paper, we propose a new tour pass called “Seoul Landmark Pass” targeting foreign individual travelers and investigate the marketability of the proposed tour pass. For the configuration of the Seoul Landmark Pass we listed 17 candidate attractions charging entrance fee in Seoul, referring to e-guidebook on Visit Seoul web site. Among them we selected 6 attractions using the checklist with the attributes that foreign tourists would prefer. We also performed SWOT analyzes on existing tour passes to determine the benefits to be included in the proposed tour pass. To investigate the marketability of the proposed tour pass we have surveyed the foreign individual tourists in Seoul. Using the survey data, we have analyzed the intent of purchase by age, visiting period, visiting purpose, frequency of visit, and nationality to identify target customers. The results show that the intent of purchase is high among the Chinese tourists at the age of twenties who visited Seoul for the first time or second times. Also, the individual tourists prefer to bundle T-money card with the proposed tour pass. Finally, we have provided a brief review of the Price Sensitivity Measurement (PSM) method and applied PSM to determine the acceptable price range and the optimal price of the proposed tour pass. The optimal price of the proposed tour pass is determined at 53,000 won including T-money card.

This study is the result of the survey on perception and anxiety of high - rise buildings in the general public. As a result of the survey, there was insufficient change in awareness before the construction of high - rise buildings such as landmarks was insufficient (before 2015). However, half of the citizens who felt uneasy that high-rise buildings were likely to collapse due to external influences were close. The anxiety was mainly due to the information of the press or the Internet. It is thought that the cause of anxiety comes from touching negative opinions about the high-rise buildings.

In this paper, we present a global localization and position error compensation method in a known indoor environment using magnet hall sensors. In previous our researches, it was possible to compensate the pose errors of xe, ye, θe correctly on the surface of indoor environment with magnets sets by regularly arrange the magnets sets of identical pattern. To improve the proposed method, new strategy that can realize the global localization by changing arrangement of magnet pole is presented in this paper. Total six patterns of the magnets set form the unique landmarks. Therefore, the virtual map can be built by using the six landmarks randomly. The robots search a pattern of magnets set by rotating, and obtain the current global pose information by comparing the measured neighboring patterns with the map information that is saved in advance. We provide experimental results to show the effectiveness of the proposed method for a differential drive wheeled mobile robot.