31-05-2012, 10:58 AM
SECURED WIRELESS COMMUNICATION FOR INDUSTRIAL AUTOMATION AND CONTROL
ABSTRACT
Wireless communication is the transfer of information over a distance without the use of electrical conductors or wires. The distances involved may be short (a few meters as in television remote control) or long (thousands or millions of kilometers for radio communications).It encompasses various types of fixed, mobile, and portable two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking.
Industrial users should consider the type of monitoring and control applications that are suitable for LR-WPAN technology such as Zigbee. Reliability, security and performance are potential challenges when designing and deploying wireless technologies and factors such as EMI/RFI and multi-path fading in industrial environments can be specific issues to consider. Zigbee provides proper network topology, and it overcomes all problems in industries caused due to environmental issues [10]. We tested Zigbee networks in various environmental conditions by using four node star networks for industrial applications like speed and direction control of D.C motor, Illumination control of incandescent lamp and closed loop water path temperature control. It was seen that error free proper communication was established between the processing unit and monitoring unit. In future we can also test other Zigbee Networks for proper wireless data communication
ABSTRACT
Wireless communication is the transfer of information over a distance without the use of electrical conductors or wires. The distances involved may be short (a few meters as in television remote control) or long (thousands or millions of kilometers for radio communications).It encompasses various types of fixed, mobile, and portable two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking.
Industrial users should consider the type of monitoring and control applications that are suitable for LR-WPAN technology such as Zigbee. Reliability, security and performance are potential challenges when designing and deploying wireless technologies and factors such as EMI/RFI and multi-path fading in industrial environments can be specific issues to consider. Zigbee provides proper network topology, and it overcomes all problems in industries caused due to environmental issues [10]. We tested Zigbee networks in various environmental conditions by using four node star networks for industrial applications like speed and direction control of D.C motor, Illumination control of incandescent lamp and closed loop water path temperature control. It was seen that error free proper communication was established between the processing unit and monitoring unit. In future we can also test other Zigbee Networks for proper wireless data communication