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http://dx.doi.org/10.5394/KINPR.2005.29.1.091

Design and Implementation of NMEA Multiplexer in the Optimized Queue  

Kim Chang-Soo (Dept. of Electronics & Communication Engineering, Graduate school of National Korea Maritime University)
Jung Sung-Hun (Dept. of Electronics & Communication Engineering, Graduate school of National Korea Maritime University)
Yim Jae-Hong (Division of Radio and Information Communication Engineering, National Korea Maritime University)
Publication Information
Journal of Navigation and Port Research / v.29, no.1, 2005 , pp. 91-96 More about this Journal
Abstract
The National Marine Electronics Association(NMEA) is nonprofit-making cooperation composed with manufacturers, distributors, wholesalers and educational institutions. We use the basic port of equipment in order to process the signal from NMEA signal using equipment. When we don't have enough one, we use the multi-port for processing. However, we need to have module development simulation which could multiplex and provide NMEA related signal that we could solve the problems in multi-port application and exclusive equipment generation for a number of signal. For now, we don't have any case or product using NMEA multiplexer so that we import expensive foreign equipment or embody NMEA signal transmission program like software, using multi-port. These have problems since we have to pay lots ci money and build separate processing part for every application programs. Besides, every equipment generating NMEA signal are from different manufactures and have different platform so that it could cause double waste and loss of recourse. For making up for it, I suggest the NMEA multiplexer embodiment, which could independently move by reliable process and high performance single hardware module, improve the memory efficiency of module by designing the optimized Queue, and keep having reliability for realtime communication among the equipment such as main input sensor equipment Gyrocompass, Echo-sound, and GPS.
Keywords
NMEA 0183; MULTIPLEXER; QUEUE; MULTI PORT; GPS; RS232;
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  • Reference
1 가남사 편집부(1990), RS232C 인터페이스 사용법
2 곽재하, 김천곤 (1999), GPS 측량의 이해, 부산정보대학 출판부, pp.105-115
3 정보 조사 분석팀 (2000), GPS 기술/시장 보고서, 한국전자통신연구원
4 Brookhouse NMEA multiplexer 제조사 (2004), URL: http://www.brookhouseonline.com
5 D. Kozlov, M. Tkachenko(1997), Instant RTK cm with Low Cost GPS+GLONASS Receivers, Proc. of ION GPS-97, pp.1559-1569
6 Hoffman-Wellenhof, B., Lichtenegger, H., and Collins, J.(1997), Global Positioning System Theory and Practice, Springer Wien New York
7 John Catsoulis(2003), 임베디드 하드웨어 이해와 설계, 한빛미디어
8 NMEA 0183 Version 3.01(2002), STANDARD FOR INTERFACING MARINE ELECTRONIC DEVICES
9 SiRF Technology Inc.(2002), NMEA Reference Manual pp.1-5