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Evaluation of errors caused by lowering frequency of measurements of an environmental sensor station
Authors: Ezeora Obiora Sam | Heckenbergerová Jana | Musilek Petr | Kromer Pavel
Year: 2016
Type of publication: článek ve sborníku
Name of source: 2015 International Conference on Intelligent Networking and Collaborative Systems IEEE
Publisher name: IEEE (Institute of Electrical and Electronics Engineers)
Place: New York
Page from-to: 204-210
Titles:
Language Name Abstract Keywords
cze Vyhodnocení chyb způsobených snížením četnosti měření senzoru stanice na životní prostředí Pro konstrukční koncepce s nízkou spotřebou energie, které mají být realizovány, musejí být moduly optimalizovány.
eng Evaluation of errors caused by lowering frequency of measurements of an environmental sensor station It has become evident that for low-power design concept to be realized, modules within the system need to be optimized. Consequently, the sensor node architecture also known as sensor station is required to operate in an optimized manner to help contribute in reduction of total power consumption of the system. Photosynthetically active radiation (PAR) data obtained in a Brazilian field study were used to investigate the errors in measurements that would have been missed if sampling time of PAR variable was increased from 5 minutes upto 30 minutes. This is required, not only to help reduce of energy consumption of the sensor station but also to help facilitate the integration of lower frequency bands of industrial scientific and medical (ISM) into the system. Results obtained indicate that daytime PAR variable should be sampled and logged every 20 minutes while longer sampling time may be used during the night-time. Daytime sampling of 30 minutes interval is not recommended. Sensor station; Sampling time; PAR; Mean absolute error; Lagrange linear interpolation; ISM band; Interquartile range; Average model; Absolute error; 95% reference interval

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