NDLI: A low-cost embedded web-server for an institutional e-learning strategy

Content Provider	IEEE Xplore Digital Library
Author	Ocaya, R.O. Katashaya, S.R.
Copyright Year	2011
Description	Author affiliation: Dept. of Physics, Univ. of Free State (Qwaqwa Campus), P. Bag X13 Phuthaditjhaba 9866, South Africa (Ocaya, R.O.) \|\| Dept. of Physics and Electronics, North-West University (Mafikeng Campus), P. Bag X2046 Mmabatho 2745, South Africa (Katashaya, S.R.)
Abstract	A TCP/IP based scientific instrument control and data distribution system is presented as part of a low cost e-learning strategy of a learning institution to offer remote collaborative science experimentation. The system uses an IEEE 802.3 full-duplex Medium Access Controller (MAC) and Physical Layer Device connected to transducers and actuators for control, data acquisition, distribution and logging over a TCP/IP network. The hardware comprises of a PIC18O620 and ENC28J60 server interconnected with PC terminals via a network hub. The software comprises the firmware written in C and Javascript, and a simple client web browser written in the Visual Basic .NET framework. The article addresses some concerns about secure access while emphasizing the figures of performance such as round-trip and inter-sample times. Finally, sample outputs of two networked PCs in a typical application to Newton's law of cooling experiment are presented.
Starting Page	59
Ending Page	63
File Size	260567
Page Count	5
File Format	PDF
ISBN	9781424486786
e-ISBN	9781424486793
DOI	10.1109/ICECTECH.2011.5941560
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-08
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Collaboration Hardware Software Browsers Servers IP networks
Content Type	Text
Resource Type	Article

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