• The Transactions of The Korean Institute of Electrical Engineers
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• v.62 no.6
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• pp.811-817
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• 2013

In this study we present a system for pulse-rate period detection and human sensibility evaluation based on the wireless medical telemetry service (WMTS) used for transmission of data from medical telemetry devices to various medical facilities and services. We develop a medical-purpose specific WMTS communication module to transmit biometric signals. From the pulse rate variability(PRV) signal, we attempt to classify positive and negative emotional states based on analysis of the ratio of LF/HF in the frequency domain. We measure the data reception rate according to distance in order to test the performance of the WMTS module and analyze the effects on human sensibility evaluation.

• Journal of the Korea Society of Computer and Information
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• v.19 no.12
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• pp.227-237
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• 2014

The purpose of this paper is to implement a multiple bio-signal central monitoring system based on textile fabrics flexible platform which can obtain and monitor bio signals(heart rate, body temperature, electrocardiography, electromyogram) of workers in special working environments and additional situational information (3-axis acceleration, temperature, humidity, illumination, surrounding image). This system can prevent various accidents that may occur in the remote work environment and provide fast and efficient response by detecting workers' situations in real-time. For it, the textile fabrics flexible platform was made as innerwear or outerwear so that it does not interfere with workers' performance while collecting bio-signal and situational information, and obtained information is sent to the central monitoring system through wireless communication. The central monitoring system is based on wireless medical telemetry service of WMTS (Wireless Medical Telemetry Service); can monitor from 2 to 32 people simultaneously; and was designed so that it can be expanded. Also, in this study, to verify performance of the WMTS communication model, packet transmission rates were compared according to the distance.

• Korean Journal of Remote Sensing
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• v.31 no.3
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• pp.245-253
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• 2015

According to wide civilian utilization of multi sensor satellite information, practical needs for fusion processing and interoperable operation with multiple remote sensing imageries within distributed remote server are being increased. For this task, OGC standards with respect to satellite images and its derived products are crucial factors. This study is to present an applicability of WPS through testing implementation of image processing algorithm. Open sources such as Geoserver and OTB were used linked to WPS application for implementation. WPS can be solely used for web service supporting geoprocessing algorithm, but technical consideration compromising with other important standard protocols including WMS, WFS, WCS, or WMTS is necessary to build full featured geo web for remote sensing imageries. It is expected that application of these international standards for geo-spatial information is an important approach to produce value-added results by interoperable processing between interorganizations or information dissemination containing practical satellite image processing functionalities.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2014.10a
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• pp.239-241
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• 2014

최근 S-100 표준을 기반으로 웹 상에서 표준화된 전자해도 및 항행정보의 융합 서비스를 제공하기 위한 연구가 활발히 진행되고 있다. 그러나, S-101의 전자해도, S-102의 해저지형 등과 같은 데이터 표준들은 어느 정도 완성이 되어 제시되고 있으나, 선박과 선박, 선박과 항만, 또는 선박/항만과 대국민 사이에 항행정보의 웹 서비스 또는 클라우드 서비스를 가능하게 하는 서비스 표준들은 매우 부족한 상황이다. 이에 본 연구에서는 ISO 19100과 OGC의 공간정보 표준을 참고하여 개발되고 있는 S-100 표준의 상황을 고려하여 S-101의 전자해도 표준과 공간정보의 WMS, WMTS 등의 웹 서비스 표준을 수용하는 On-Shore 항행정보 서비스 플랫폼에 대하여 제시하고자 한다. 제안된 On-Shore 항행정보 서비스 플랫폼은 전자해도, 공간정보, 날씨, AIS 정보 등의 융합 서비스가 가능하며, WebApp 서비스 또는 앱 지원을 통하여 스마트 폰 등의 모바일 기기에서도 손쉽게 항행정보 서비스를 제공받을 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.04a
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• pp.1163-1166
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• 2009

전 세계적으로 유헬스 서비스에 대한 관심도가 증가함에 따라 유헬스의 핵심기술 가운데 하나인 무선통신기반의 생체신호 전송기술에 대한 연구 또한 활발히 진행되고 있다. 특히 2000년대부터 시작하여 이미 많은 연구가 진행되어 온 WPAN에서는 Zigbee, Bluetooth, UWB 등의 무선대역을 통하여 생체 신호를 전송하는 연구가 상당히 진행되어 왔으며, 최근에는 IEEE 802.15.6 WBAN에서 MICS, WMTS등과 같은 무선대역을 이용하여 생체신호를 전송하기 위한 연구를 새로이 진행하고 있다. 특히 WLAN이 무선통신기술에 있어 1세대라 하고, WPAN이 2세대라 한다면 WBAN은 3세대 무선통신기술이라고 할 만큼 새로운 시장을 형성할 것으로 예상된다. 따라서 본 고에서는 기존의 WPAN과 최근에 이슈가 되고 있는 WBAN의 무선기술을 통해 생체신호를 전송하기 위한 기술을 분석하고 향후 연구해야 할 내용에 대해 언급하기로 한다.

• Spatial Information Research
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• v.21 no.6
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• pp.23-32
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• 2013

Recently, there has been much interest in the converged platform that enables the harmonized collection, integration, exchange, presentation and analysis of various kinds of marine information by using the ICT means. Regarding such the converged platform, S-100 standards including the international hydrographic data model are being announced and various studies have been published based on the S-100 standards. However, the existing studies have presented simple solutions for only given problems on the converged service of the maritime information. They could not propose the design concept of the converged platform which makes it possible to provide the standardized and integrated services among the geospatial data, the real-time maritime data, and the next ENC. Therefore, we propose design and implementation details of the converged service platform for the geospatial and the maritime data based on the S-100, WMS, WMTS, WPS, SOS standards. The proposed platform has advantages of supporting both the S-57 and the S-101, supporting the converged services of heterogeneous geospatial data and ENC data, supporting the real-time services of sensor data such as weather, AIS, and CCTV, and supporting the development of various kinds of maritime systems such as ECDIS, ECS, VTS based on the WebApp service. Finally, we proved the effectiveness of our proposed platform through the actual implementation of the converged service of geospatial data, S-101 data, and KWeather data.

• Journal of Navigation and Port Research
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• v.39 no.3
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• pp.157-163
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• 2015

Recently, there has been much interest in the e-Navigation that applies a variety of digital devices to shipboard thanks to the high interest to maritime safety and the rapid development of ICT technologies. The e-Navigation proposes a new ICT paradigm in maritime information service and maritime safety. This study proposes the shore-based maritime information service platform that enables the converged services of various kinds of maritime data and the standard ENC based on IHO S-100. The proposed maritime information service platform enables the harmonized integration, presentation and web services of ENC, sensed data such as AIS, ocean weather and currents, and geospatial data. Also, the platform enables the mobile maritime information service through WebApp or App software operating in mobile devices of smart phone or web pad. Finally, the proposed platform accommodates the standard ENC of the existing S-57 and the new S-101, and the standard web services of WMS and WMTS of ISO 19100 and OGC.