The implementation of a data acquisition and dissemination system using a micro-computer as a intelligent front-end processor to a multi-user mini computer

Abstract

This dissertation describes the design, development and implementation of the software for -i real-time data acquisition system. A microcomputer war employed as an intelligent front-end processor to a mult, user minicomputer system for the real-time input and output of analog signals. The data acquisition system, BADEDAS ( Basic Analog and Digital Experimental Data Acquisition System ), provides the users of an Eclipse minicomputer systen with an efficient means of acquiring digital samples of analog signals and disseminating digital samples as analog signals. BADEDAS exploits the concept of de Ice independent i/o to achieve an othogonal and flexible architecture. BADEDAS provides the choice of two user interfaces to the system and the ability to include simple user-written processing routines in the front-end processor's control software. The use of a microcomputer as a front-end processor removes the real-time I/O requirements from the minicomputer and also reduces the risk electrical damage to it.