Sensors 2010, 10(3), 2242-2261; doi:10.3390/s100302242
Article

Efficiency of Event-Based Sampling According to Error Energy Criterion

Received: 23 December 2009; in revised form: 5 February 2010 / Accepted: 24 February 2010 / Published: 18 March 2010
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The paper belongs to the studies that deal with the effectiveness of the particular event-based sampling scheme compared to the conventional periodic sampling as a reference. In the present study, the event-based sampling according to a constant energy of sampling error is analyzed. This criterion is suitable for applications where the energy of sampling error should be bounded (i.e., in building automation, or in greenhouse climate monitoring and control). Compared to the integral sampling criteria, the error energy criterion gives more weight to extreme sampling error values. The proposed sampling principle extends a range of event-based sampling schemes and makes the choice of particular sampling criterion more flexible to application requirements. In the paper, it is proved analytically that the proposed event-based sampling criterion is more effective than the periodic sampling by a factor defined by the ratio of the maximum to the mean of the cubic root of the signal time-derivative square in the analyzed time interval. Furthermore, it is shown that the sampling according to energy criterion is less effective than the send-on-delta scheme but more effective than the sampling according to integral criterion. On the other hand, it is indicated that higher effectiveness in sampling according to the selected event-based criterion is obtained at the cost of increasing the total sampling error defined as the sum of errors for all the samples taken.
Keywords: event-based sampling; send-on-delta; sampling error
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MDPI and ACS Style

Miskowicz, M. Efficiency of Event-Based Sampling According to Error Energy Criterion. Sensors 2010, 10, 2242-2261.

AMA Style

Miskowicz M. Efficiency of Event-Based Sampling According to Error Energy Criterion. Sensors. 2010; 10(3):2242-2261.

Chicago/Turabian Style

Miskowicz, Marek. 2010. "Efficiency of Event-Based Sampling According to Error Energy Criterion." Sensors 10, no. 3: 2242-2261.

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