Application of Virtual Instruments in Data Monitoring & Logging

Abstract

Data Acquisition is the process of real world physical conditions and conversion of the resulting samples into digital numeric values that can be manipulated by a computer. This system is used to measure various parameters in the industry such as pressure, temperature of plant, control room temperature, combustible gas level, humidity, weight of the product, etc. This paper shows a cost effective way to design and develop LabView based Data Acquisition System. Here, 8051 microcontroller is used as an intermediate controller to scan each channel & send data to LabView via RS-232. The parameter readings are also stored in Excel file as well as EEPROM for further analysis. Virtual Instruments like LabView, can decrease development time to a great extent, can be integrated to physical world very easily and is very user friendly.

Keywords: Data Acquisition System (DAS), virtual instruments, labview, EEPROM