This paper discusses the design and implementation of ESSPL, an expert system which generates security plans for alarm systems (Figure 1). Security planning is the task of determining an e cient layout of sensors, alarms, and the associated wiring for a building. ESSPL uses Rule Based System technology to generate a plan and Constraint Based technology to position the alarm equipment. A Constra...

Alarm timing for a forward collision warning system plays an important role in system effectiveness. It is necessary to determine the appropriate alarm timing by considering a driver’s response to not only true alarms but also how drivers respond when an alarm should have been issued but was not (missed alarms) to evaluate both the increased system effectiveness and decreased over-reliance on t...

Production process control becomes complicated as the complexity of the controlled process grows. To simp113 the operator's role many computer based control systems with integrated visualization clients have been developed. In many practical circumstances malfunction of one or more process components results in other related components entering the alarm states. Several alarms appear on the ope...

When a chemical plant is abnormal state, an alarm system must provide useful information to operators as the second layer of independent protection layer. Therefore, a method of designing plant alarm system is important for plant safety. Because the plant is modified in the plant lifecycle, the alarm system for the plant should be properly managed through the plant lifecycle. To manage the chan...

A telecommunication system produces daily a large amount of alarm data which contains hidden valuable information about the system behavior. The knowledge discovered from alarm data can be used in finding problems in networks and possibly in predicting severe faults. In this paper, we devise a solution procedure for mining sequential alarm patterns from the alarm data of a GSM system. First, by...