C3.1 - Wireless Sensor/Actuator Networks

SENSOR+TEST Conferences 2011
2011-06-07 - 2011-06-09
Proceedings SENSOR 2011
C3 - Wireless Sensors II
R. Heynicke, G. Scholl - Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg (Germany)
405 - 410


Resource conserving weight, material and energy savings, achievement of compliance with new environmental and safety requirements, costefficient retrofitting of already existing monitoring and control systems, improvement of labor productivity, inventory optimization, mobile operation and tracking, remote control and maintenance or alleviation and acceleration of awkward or laborious installations are only some reasons boosting wireless technologies in automation applications. Highly matured low-power CMOS technologies with an ever-increasing performance and steadily shrinking chip-sizes enable the integration of microelectronic components and systems into machines, tools, sensors and actuators. Compared with, e.g. the mobile phone market, the market for machine-tomachine communication is much more conservative and diversified. A single wireless solution cannot deliver all the benefits in every situation and must be tailored to the requirements of the different market segments, which can roughly be subdivided into transportation and logistics, building automation, factory and process automation and infrastructure plants. Thus, the wireless automation market offers opportunities for creative ideas for highly specialized applications but also requires industry standards to guarantee systems interoperability and to increase quantities. On the other side coexistence of wireless systems in industrial environments is a more and more difficult task with respect to the ongoing standardization process, especially the revision of the ETS 300 328 standard for data transmission in the 2.45 GHz band. Compared with office applications industrial applications have stricter timing and higher safety and security requirements. For all safety levels wireless products are already available. Other requirements are cost and time savings, engineering and diagnosis tools should be based on standards already known by the technical staff and simple integration of the wireless network into the existing communication
framework. Even a discussion of only a subset of the various solutions already available on the market goes far beyond the scope of this presentation. Therefore, the presentation is focused on processs and factory automation, outlining newest trends and developments in the field.