Method for Designing Alarm System Using DAEs, CE Matrices, and Preference Indices

Abstract

A plant alarm system provides critical information to operators as the third layer of independent protection layers when a chemical plant is undergoing an abnormal situation. Therefore, methods for designing plant alarm systems are crucial for plant safety. Because plants are maintained as part of the plant lifecycle, plant alarm systems should be properly managed and adapted to changes that occur throughout the lifecycle. To manage changes, the design rationale of the plant alarm system should be explained explicitly. In the present paper, we explain a design problem for plant alarm systems and propose a method for designing alarm systems by using di erential and algebraic equations, cause-e ect matrices, and preference indices.

Multi-function Monitoring and Alarm System for the Large Stadium

“…The system includes the minimum system based on STC89C52, sensor circuit composed of the DS18B20, HC-SR501, MQ-2, GSM communication module and the LCD1602 display circuit. The software system includes the main program, the GSM SMS transceiver program, the display program and the temperature detection program [2].…”