Industrial IR based instrumentation area network

[摘要] ENGLISH ABSTRACT:Wireless Area Network technology for industrial and factory applications is importantfor satisfying inflexible (safety-critical) real-time requirements in sometimes harsh environments.Many of these applications involve mobile subsystems and could benefit fromrecent Wireless LAN technologies replacing the current cable-based systems. An immediatequestion is how this technology can be used for wireless Area Network systems?An important aspect of this question is the development of time-variable wireless linkswith good real-time performance. This project will attempt to answer some aspects ofthis question. The main objective of this thesis is to create a wireless area network forinstrumentation purposes, interconnecting various monitoring and control transducers toa central master station.This project focuses on three transmission technologies used for wireless LANs with lowpower consumption; capable of close range positioning, indoors as well as outdoors. Thesetransmission technologies are Infrared LAN (IrDA), Spread Spectrum LAN and NarrowbandMicrowave LAN. As a result of the evaluation of the three technologies, an InfraredLAN (IrDA) system was implemented as an area network, utilising an IrLAP protocol(Master and Slave) as a communication protocol. The Master is enabled to monitor andcontrol all slaves interfaced to it.

[发布机构] Stellenbosch University