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CAN 기반 다중센서 네트워크 시스템의 고장진단을 위한 TPC알고리즘
하휘명(Hwimyeong Ha),황요섭(Yuseop Hwang),정경석(Kyungsuk Jung),김현준(Hyunjun Kim),이봉진(Bongjin Lee),이장명(Jangmyung Lee) 제어로봇시스템학회 2016 제어·로봇·시스템학회 논문지 Vol.22 No.2
This paper proposes a new TPC (Transmission Priority Change) algorithm which is used to diagnose failures of a CAN (Controller Area Network) based network system for the oil tank monitoring. The TPC algorithm is aimed to increase the total amount of data transmission and to minimize the latency for an urgent message by changing transmission priority. The urgency of the data transmission has been determined by the conditions of sensors. There are multiple sensors inside of the oil tank, such as temperature, valve, pressure and level sensors. When the sensors operate normally, the sensory data can be collected through the CAN network by the monitoring system. However when there is a dangerous situation or failure situation happened at a sensor, the data need to be handled quickly by the monitoring system, which is implemented by using the TPC algorithm. The effectiveness of the TPC algorithm has been verified by the real experiments. In addition, this paper introduces a method that people can figure out the condition of oil tanks and also can perform the fault diagnosis in real-time by using transmitted packet data. By applying this TPC algorithm to various industries, the convenience and reliability of multiple sensors network system can be improved.