Sleeping posture recognition using fuzzy c-means algorithm

Table 1 Comparison of FSR sensor and infrared array sensor deployment

	Number of sensors	Sensing gap	$ {\text{max(}}\varvec{A}_{\varvec{u}} ) $	Cost
Pressure sensor array	49	0.1 m	$ 1 8 0. 8 3 \,{\text{cm}}^{ 2} $	$340
Proposed infrared array sensor	1	N/A	$ 2 5 \, {\text{cm}}^{ 2} $	$34

The quality of sensor deployment was better when the value of $ {\text{max(}}A_{u} ) $ was smaller

ISSN: 1475-925X

	Number of sensors	Sensing gap	\( {\text{max(}}\varvec{A}_{\varvec{u}} ) \)	Cost
Pressure sensor array	49	0.1 m	\( 1 8 0. 8 3 \,{\text{cm}}^{ 2} \)	$340
Proposed infrared array sensor	1	N/A	\( 2 5 \, {\text{cm}}^{ 2} \)	$34