International Journal of Computer Applications (0975 – 8887) Volume 42– No.11, March 2012 13 Design and Implementation of Embedding Web Server for Real Time Data Acquisition and Logging System Mukesh Kumar Lovely Professional University, Punjab, India Mansav Joshi Punjab Technical University, Punjab, India Sanjeev Sharma Lovely Professional University, Punjab, India ABSTRACT Real time data acquisition and logging system allow real time local and remote data acquisition and logging involve in industrial processes. The application runs in a PC with a web server. The interaction with physical quantities to be measured is performing with specific hardware or PC standard interfaces such as the serial port or USB, or by LAN. Terminals include web database and ADC that acquire signal from transducers and generate its binary equivalent at output lines that interfaced to microcontroller and transmitted to PC serially. Measured signal waveforms are display at LabVIEW front panel, along with this LabVIEW log the acquired data into standard spreadsheet, upload spreadsheet over an IP address, which would use for remote monitor or control applications. Moreover, it is implemented effectively for remote monitoring of industrial processes and test result shows that system design is flexible with increasing variety of data to acquire and meets accuracy, real-time execution of events and reliability of automatic maintenance of equipment with cost effective solution. KEY WORDS Data acquisition, Data logging, ADC, LabVIEW 1. INTRODUCTION Currently, DAQ (Data AcQuisition) systems are widely popular in the control and remote monitoring of system status and environment conditions like moisture, temperature, light, humidity etc. Our Real time Data AcQuisition and logging System perform acquisition of data in form of physical quantity or in time varying quantity and performing A\D conversion and sends this over the network or logged in the system database in form of spreadsheet. As network has been one of the basic information instruments in the society, and it is an important channel of information communication. This is the reason that modern Industrial measurement and control system have changed from the traditional centralized monitoring control system to network-based distributed control system. The goals of the real time data acquisition and logging system are three fold; Hardware, Software, and Pervasiveness of data. The design of system has three important features quick to market solution; Core Application and Services, Web Application, and a Sound Documentation Methodology. 2. DESIGN OF THE REAL TIME DATA ACQUISITION AND LOGGING SYSTEM 2.1 HARDWARE DESIGN The Real time data acquisition system design includes the PC, embedded board, Ethernet. Our design not only provides the features of traditional instruments but also many other features like the flexible in dynamic changes required in software design, easy upgrading of system with change in user requirements, data transmission over Ethernet. Fig 1: Architecture of Real time data acquisition and logging system The hardware design includes the transducers, ADC, Microcontroller, voltage translator, RS232 serial port. Fig 2: Hardware design of embedded board for Real time data acquisition and logging system 2.2 SOFTWARE DESIGN Keil μVision-3 is being used to design program code to read, monitor and display process parameters for real time data acquisition system. After creating hex files using Keil IDE, functionalities of the system are tested on Proteus 7.4 SP3 Embedded Board Client (With LabVIEW Platform) LAN with OFC Server