Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)
- Volume 3 Issue 2
- /
- Pages.455-463
- /
- 1999
- /
- 2234-4772(pISSN)
- /
- 2288-4165(eISSN)
A Study on the Development of an Engine Monitoring System for Small Vessel Using CSMA/CD
CSMA/CD 프로토콜을 이용한 중.소형 선박용 기관 모니터링 시스템 구성에 관한 연구
Abstract
This study is on the development of an engine monitoring system which can be applied not only for mid-size vessels but also small vessels less than 20 gross tonnage. Monitoring system consists of a set LMU(Local Monitoring Unit) that collect data from local machinery, a host computer that controls LMU and a stable communication system which adopts CSMA/CD protocol. The LMU is composed of 80C196KC microprocessor, which consists of CPU, digital input/output, analog input/output and communication module. Communication system between the host computer(compatible IBM PC) and LMUs is the multidrop configuration using RS-485 method and confirmed high performance communication by the aid of polling method as well as carrier sense multiple access with collision detection(CSMA/CD) protocol.
Keywords