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Proceedings Paper

Development of an extensible dual-core wireless sensing node for cyber-physical systems
Author(s): Michael Kane; Dapeng Zhu; Mitsuhito Hirose; Xinjun Dong; Benjamin Winter; Mortiz Häckell; Jerome P. Lynch; Yang Wang; A. Swartz
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Paper Abstract

The introduction of wireless telemetry into the design of monitoring and control systems has been shown to reduce system costs while simplifying installations. To date, wireless nodes proposed for sensing and actuation in cyberphysical systems have been designed using microcontrollers with one computational pipeline (i.e., single-core microcontrollers). While concurrent code execution can be implemented on single-core microcontrollers, concurrency is emulated by splitting the pipeline’s resources to support multiple threads of code execution. For many applications, this approach to multi-threading is acceptable in terms of speed and function. However, some applications such as feedback controls demand deterministic timing of code execution and maximum computational throughput. For these applications, the adoption of multi-core processor architectures represents one effective solution. Multi-core microcontrollers have multiple computational pipelines that can execute embedded code in parallel and can be interrupted independent of one another. In this study, a new wireless platform named Martlet is introduced with a dual-core microcontroller adopted in its design. The dual-core microcontroller design allows Martlet to dedicate one core to standard wireless sensor operations while the other core is reserved for embedded data processing and real-time feedback control law execution. Another distinct feature of Martlet is a standardized hardware interface that allows specialized daughter boards (termed wing boards) to be interfaced to the Martlet baseboard. This extensibility opens opportunity to encapsulate specialized sensing and actuation functions in a wing board without altering the design of Martlet. In addition to describing the design of Martlet, a few example wings are detailed, along with experiments showing the Martlet’s ability to monitor and control physical systems such as wind turbines and buildings.

Paper Details

Date Published: 10 April 2014
PDF: 19 pages
Proc. SPIE 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014, 90611U (10 April 2014); doi: 10.1117/12.2045325
Show Author Affiliations
Michael Kane, Univ. of Michigan (United States)
Dapeng Zhu, Georgia Institute of Technology (United States)
Mitsuhito Hirose, Univ. of Michigan (United States)
Xinjun Dong, Georgia Institute of Technology (United States)
Benjamin Winter, Michigan Technological Univ. (United States)
Mortiz Häckell, Leibniz Univ. Hannover (Germany)
Jerome P. Lynch, Univ. of Michigan (United States)
Yang Wang, Georgia Institute of Technology (United States)
A. Swartz, Michigan Technological Univ. (United States)

Published in SPIE Proceedings Vol. 9061:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014
Jerome P. Lynch; Kon-Well Wang; Hoon Sohn, Editor(s)

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