Design of a Child Localization System on RFID and Wireless Sensor Networks

Table 1

Power consumption of hardware components in the client node.

	Power supply	Current
SkyeTek M8 reader	5 V	600 mA @ 500 mW output
		250 mA @ 15 mW output
		$<$50 $\mu$A sleep
Crossbow Mica2 mote	3 V	Processor: 12 mA @ full operation, 10 $\mu$A sleep
		Radio: 7 mA receive, 10 mA transmit (1 mW power), 1 $\mu$A sleep
		Serial flash memory: 15 mA write, 4 mA read, 3 $\mu$A sleep