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12<br />

A Survey of Wireless<br />

Sensor Networks for<br />

Industrial Applications<br />

Stig Petersen<br />

SINTEF Information and<br />

Communication Technology<br />

Simon Carlsen<br />

Statoil ASA<br />

12.1 Introduction..................................................................................... 12-1<br />

12.2 Wireless Sensor Network Basics................................................... 12-2<br />

Wireless Sensor Node. •. Wireless Sensor Network Stack<br />

12.3 Motivation and Drivers for Wireless Instrumentation............. 12-3<br />

12.4 Industrial Applications and Requirements.................................12-4<br />

Standardized Solutions. •. Reliable Network Performance. •. Battery<br />

Lifetime. •. Friendly Coexistence with Wireless Local Area<br />

Networks. •. Security. •. Operation in Harsh and Hazardous<br />

Environments<br />

12.5 Technology Survey and Evaluation..............................................12-6<br />

IEEE Std 802.15.4. •. ZigBee. •. WirelessHART. •. ISA-100. •. .<br />

Coexistence in the 2.4.GHz Band<br />

12.6 Conclusion........................................................................................12-9<br />

Abbreviations...............................................................................................12-9<br />

References....................................................................................................12-9<br />

12.1 Introduction<br />

Sensors are used in <strong>industrial</strong> plants and facilities to monitor the performance and the operational<br />

environment in order to provide better insight into operational requirements and potential safety<br />

problems. The monitored parameters can be temperature, vibration, pressure, flow, humidity, valve<br />

positions, gas leaks, fire outbreaks, equipment condition, and others. The data collected by the sensors<br />

are used to make informed, just-in-time decisions on plant operational performance and conditions. In<br />

addition, by using intelligent techniques to analyze historical sensor data in conjunction with historical<br />

operational performance, certain characteristics and patterns in typical operational conditions can be<br />

identified, providing the possibility to optimize plant safety, production, turnarounds and shutdowns,<br />

maintenance operations, and error and fault tolerance.<br />

Recent advances and standardization work within the field of wireless technology have enabled<br />

the development of low-power and low-cost solutions capable of robust and reliable wireless <strong>communication</strong><br />

[ASS02]. The IEEE Std 802.15.4 [802.15.4] defines the physical layer (PHY) and the<br />

medium access control (MAC) sublayer for low-rate wireless personal area networks. Features such<br />

as low complexity, cost, and power, make it a suitable candidate for wireless sensor networks (WSNs)<br />

[YXZ06]. With a growing number of solutions based on the IEEE Std 802.15.4 PHY and MAC, it<br />

has become the de facto standard for many WSN solutions, both standardized and proprietary. The<br />

multi-hop mesh network topologies and self-configuring and self-healing capabilities offered by<br />

12-1<br />

© <strong>2011</strong> by Taylor and Francis Group, LLC

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