04-03-2012, 09:18 PM
sir i twant ppt for this topic pls send it to my email thebunnyraj[at]gmail.com
04-03-2012, 09:18 PM
sir i twant ppt for this topic pls send it to my email thebunnyraj[at]gmail.com
13-09-2013, 02:52 PM
SECURED WIRELESS COMMUNICATION FOR INDUSTRIAL AUTOMATION AND CONTROL SECUREDWIRELESSCOMMUNICATION.pdf (Size: 461.1 KB / Downloads: 69) Abstract Wireless based industrial automation is a prime concern in our day-to-day life. The approach to Zigbee Based Wireless Network for Industrial Applications standardized nowadays. In this paper, we have tried to increase these standards by combining new design techniques to wireless industrial automation. The personal computer based wireless network for industrial application using Zigbee can be adopted at micro and macro Industries, it has various types of Processors and Microcontrollers. Here Microcontrollers, Temperature Sensors, Zero crossing detector, Voltage regulators are used. The system is fully controlled by the Personal Computer through Visual Basics GUI (Graphical User Interface).The GUI is developed based on application by the user. All the processor and controllers are interconnected to personal computer through Zigbee. The Personal Computer will continuously monitor all the Data from remote processing unit and compare with value preloaded process structure. If any error is found the personal computer takes necessary action. Here star topology four node Zigbee network is tried. The first Zigbee is connected to the personal computer it acts as full function devices and is used to send and receive data from other nodes. The second, third and fourth Zigbee are reduced function devices and they are used to control the speed of DC motor, temperature control and lamp illumination control respectively. All the Zigbee’s are interconnected with processing unit through RS232 protocol. INTRODUCTION In recent years, wireless sensor networks have become widely spread in many areas including industrial data transfer and process control applications. Some of these applications outgrow the traditional communication model applied to wireless sensor networks according to which data is flowing towards a single receiver (sink). In the case of industrial data acquisition systems more than one receiver is a viable model. WIRELESS COMMUNICATION 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. Here we use the wireless network for industrial data communication. HARDWARE PLATFORMS OVERVIEW An evaluating hardware was developed with Maxstreem, xbee pro Zigbee module, it consumes only 2mW and 1.25 mW power at active and sleep mode. It is compatible to transfer data upto 400 Meter range at 250Kbps. Zigbee pro communicate based on DSSS (Direct Sequence Spread Spectrum) and it’s very suitable to Mesh, point-to-point and point-to-multipoint networks. CONCLUSION 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 network for industrial applications like speed and direction control of D.C motor, Illumination control of incandescent lamp and closed loop water path temperature control. |
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