Review Paper: Real Time Based Data Acquisition System

Abstract

The aim of this thesis is to implement and design a data acquisition system (DAQ) by using MATLAB. Early persons look at a scientific instrument and writes down observations. This became unchanged until the paper-based chart recorder became available. The digital computer acquired data, stored automatically and also analyses and reports it.DAQ is a group of interconnected hardware or electronic instruments to the measurement of analogue and digital signals. This paper introduces DAQ (Data Acquisition) process based on MATLAB of bringing a real-world signal we are trying to measure or capture the data from LED panels, digital read out type instruments, deflection needle type instruments and other physically observed like number of objects persons, observable weather conditions, entering a room or lighting conditions, into computer, for processing, storage or analysis. Generally for processing purpose, transmission and display analogue data is first collected and then transformed into the digital form.