Table 8.

Energy consumption for data acquisition during classification and written to flash. Measurements of energy are express in µA h (microampere hour). Measurements were provided by Intel®.

	window size
measure	3 s	5 s	7 s
no. samples/window	48	80	112
no. bytes/window	672	1120	1568
no. sample acquisition/h	1200	720	514
µA h energy (sample acquisitions/h)	333	200	143
no. bytes/h sampled	806 400	806 400	806 400
µA h energy (data processing/h)	1000	1000	1000
SRAM buffer size in bytes	256	256	256
classification record size in bytes	8	8	8
no. seconds before buffer is full and write to flash is executed	96	160	224
no. writes per hour	38	23	16
µA h energy (writes to flash)	10	6	4