Title :
Microprocessor-Based System for Processing Redundant Instrumentation Signals
Author :
Kimura, Yoshiyuki ; Hasegawa, Ken-ichi ; Sekiguchi, Akira
Author_Institution :
Faculty of Engineering, Department of Nuclear Engineering, University of Tokyo, 7, Hongo, Bunkyo-ku, Tokyo, Japan.
Abstract :
A microprocessor-based system for processing redundant instrumentation signals is proposed. The prototype of the system has been produced using general-purpose microprocessors. The system can provide a complex trip function in place of a conventional hardwired simple 2 out of 3 trip circuit. Self testing and fail safe features are included in the system. The feasibility of the system is assessed by simulated operation tests. The results indicate the satisfactory features of the system in respect to program execution speed and reliability.
Keywords :
Circuit testing; Inductors; Instruments; Microprocessors; Protection; Reactor instrumentation; Reliability engineering; Sensor systems; Signal processing; System testing;
Journal_Title :
Industrial Electronics and Control Instrumentation, IEEE Transactions on
DOI :
10.1109/TIECI.1980.351679
