본 연구는 양계사내에서 작업자의 위치를 예측하기 위해 BLE 비콘을 이용한 위치 서비스 시스템을 제안한다. 애플리케이션을 개발하여 스마트 단말기로 비콘의 데이터를 수집하고, 수집한 데이터를 기반으로 핑거프린트 알고리즘을 이용한 스코어맵을 생성하였다. 작업자의 위치 예측은 스코어맵과 양계사내에서 실시간으로 수집한 데이터를 유사도 알고리즘을 이용하여 예측하였다. 실험대상 양계사에서 작업자 위치를 예측한 결과 일반 데이터는 위치 예측 시 많은 오차와 낮은 정확도를 보이고, 일반데이터에 필터링을 적용한 알고리즘을 적용 시 위치 예측 정확도가 개선됨을 알 수 있다. 따라서 양계사내에서 BLE 비콘을 이용한 위치기반 서비스 제공이 가능함을 확인하였고, 스코어맵 기반 위치 예측 시스템만 적용했을 때 위치예측 결과보다 필터를 적용한 결과가 더 나은 결과를 보였다. 본 연구는 양계사내에서 BLE 비콘을 이용한 위치 예측이 강점을 가질 수 있는 것으로 보인다.

Compared to the early 2000s, the number of tourists in Korea has increased significantly. Approximately 40 million tourists visit Korea each year. In line with this trend, various technologies for developing tourism content have reached a very high level. Therefore, adding experience-oriented AR (Augmented Reality) game based on LBS (Location-Based System) to existing tourist contents will create a new tourism content platform that can give new experience to tourists . This paper proposes a tourism contents platform based on Suwon Hwaseong Fortress which can give such a new experience.

Location-Based Service(LBS) is a service that provides a variety of convenience in life using location information that can be obtained by mobile communication network or satellite signal. In order to provide LBS precisely and efficiently, we need the location determination technology, platform technology and server technology. In this study, we studied on how we can reduce the error on location determination of objects such people and things. Fingerprint location determination method was applied to this study because it can be used at current wireless communication infrastructure and less influenced by a variety of noisy environment than other location determination methods. We converted the probability value to logarithmic scale value because using the sum of k probability values is not suitable to be applied to weight determination. In order to confirm the performance of suggested method, we developed location determination test program with Visual Basic 6.0 and performed the test. According to indoor and outdoor test results, the suggested stochastic method reduced the distance error by 17%, 18% and 9% respectively at indoor environment and 25%, 11% and 4% at outdoor environment compared with deterministic NN, kNN and kWNN fingerprint methods.

Location-Based Service(LBS) is a service that provides a variety of convenience in life using location information that can be obtained by mobile communication network or satellite signal. In order to provide LBS precisely and efficiently, we have to need technologies such as location determination technology, platform technology and server technology first. In this study, we studied on how we can reduce the error on location determination of objects such people and things. Fingerprint location determination method was applied to this study because it can be used at current wireless communication infrastructure and less influenced by a variety of noisy environment than other location determination methods. We used the time of arrival(ToA) method in fingerprint location determination method. In order to confirm the performance of suggested method, we developed location determination test program with LAbVIEW 2010 and performed the test. According to indoor test results, the suggested method reduced the distance error by 24%, 34% and 19% respectively at indoor environment compared with deterministic kWNN and Rice Gaussian fingerprint methods.

In this paper, the uAPSS(u-APartment Service System) that is based on location-aware technology is designed and implemented for a luxury apartment. On the real luxury apartment the developed system has been employed and tested to provide convenient and secure living for residents. It provides services such as emergency call, intelligent elevator operation, and hands-free door access based on the location of the residents with personal device as called smart tag. It can also be applied to other service areas such as the location-aware u-Service for hospitals, high-rising complex buildings, silver towns, etc.

  The purpose of this study is to predict promising Location Based Services under an ubiquitous environment based on their technical characteristics, which is strongly required in rapidly changing circumstances with ubiquitous computing and Broadband Conv

Recently, RFID technology is being widely embraced in the supply chain, by manufacturers, retailers, and logistics firms. This study shows the RFID system to provide location based service for commercial vehicle by integrating tracking function of GPS with Mobile service. For this, we configured PC-based terminal for vehicle and developed application consisted of RFID and GPS manager program. In web service module which uses mobile service, commodity information acquired from each vehicle at real-time is added at database and it is analyzed in various aspects to support management decision through the Legacy system.

In this paper, we implemented a safety navigation mobile application that converged AtoN information and location-based services. When application user uses the smartphone’s GPS sensor to transmit the user’s vessel location data to the data server, the user receives information of which its providing range is considered, such as stored AtoN data, neighboring vessels information, danger area, and weather information in the server. Providing information is sorted based on the smartphone’s direction and inclination and it will be also delivered via wireless network (5G, LTE, 3G, WiFi). Additionally the application is available to implement other functions such as information provision through voice and text alarming service when the user’s vessel is either approaching or entering the danger area, and an expanded information provision service that is available in shadow area linking with data-storing methods; other linkable data such as weather and other neighboring vessels will be applied based on the lasted-saved data perceived from the non-shadow area.

모바일 위치기반 서비스는 화면형태에 따라 지도, 조감화면, 사진 이미지, 현장영상 기반으로 구분 된다. 이 중 증강현실로 대표되는 현장영상 기반의 화면형태는 현재 사실적인 화면을 통해 현장감을 제공함으로써 사용자에게 가장 감성적으로 어필을 하고 있지만 이를 이상적으로 구현하기 위해서는 매우 정교한 패턴 매칭 방식 알고리즘이 요구되고, 서비스 지역이 사용자의 실제 위치 주변으로 제약되는 한계를 가진다. 본 논문에서는 미러월드의 도입을 통해 이러한 문제를 해결하는 위치 기반 서비스를 제안하고 시제품을 제작한다. 제안하는 서비스는 미러월드 데이터와 연계하여 매칭 알고리즘이나 사용자가 서비스 대상 지역에 있어야 하는 한계 없이 사용자에게 해당 지역을 사실적인 영상을 통해 현장감을 효과적으로 줄 수 있다.