Process-Control Behaviors in Accelerated Man-in-the-Loop Simulation

Abstract

This research was conducted to develop and demonstrate a realistic man-in-the-loop simulator for use by ergonomics designers. A man-in-the-loop simulator uses a computer to simulate the job environment of an operator and this form of simulation employs real operators at a mockup of the man/machine interface design. A new structured simulation program for wide application and portability was sought for use with a minicomputer which would greatly reduce the user's time in adapting it to specific applications and for making design changes. Part of this simulator includes a support program that collects and analyzes the operator's performance and error data. This simulator is demonstrated for the task of scheduling ingots into and out of soaking pits of a steel mill. Other process control situations are considered and limitations are shown. Tests on the simulation rate effect and other tests, now in process, are described. Applications in training and skill maintenance are also discussed.