Abstract
In this paper, a dual processor structure sensor node for dual mode operation is presented for ultra-low power energy harvesting environments. Energy harvesting environments have the two disadvantages: low amounts of usable energy and large deviations. To overcome the disadvantages, two solutions are applied to the sensor node. First, the sensor node is designed for dual mode operation where it operates differently depending on the amount of usable energy. The sensor node executes only the most fundamental functions and defers the remains while it has insufficient energy, and executes the deferred functions after it obtains sufficient energy. Second, an event handling co-processor (EHCP) is added to the sensor node. Because it would be too excessive to use a heavy-weight general-purpose CPU for such simple operations when there is little usable energy. So, the EHCP is designed with the minimum basic instruction sets so that only the most basic functions are processed. Through this study, a new technique of operating a sensor node is proposed for ultra-low power energy harvesting environments with low amounts of usable energy and large deviations.
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References
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Yang, J.K., Seong, Y.R., Park, JS., Oh, HR. (2012). Design of a Dual Processor Structure Sensor Node for Energy Harvesting Environments. In: Lee, G., Howard, D., Ślęzak, D., Hong, Y.S. (eds) Convergence and Hybrid Information Technology. ICHIT 2012. Communications in Computer and Information Science, vol 310. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32692-9_62
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DOI: https://doi.org/10.1007/978-3-642-32692-9_62
Publisher Name: Springer, Berlin, Heidelberg
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