Piezoelectric Energy Harvesting Devices: An Alternative Energy Source for Wireless Sensors

Table 4

Power consumption of some commercial wireless sensor nodes.

	Crossbow MICAz [21, 59]	Intel Mote 2 [21, 59]	Jennie JN5139 [21, 60]
Radio standard	IEEE802.15.4/ZigBee	IEEE802.15.4	IEEE802.15.4/ZigBee
Typical range	100 m (outdoor), 30 m (indoor)	30 m	1 km
Data rate (kbps)	250 kbps	250 kbps	250 kbps
Sleep mode (deep sleep)	15 μA	390 μA	2.8 μA (1.6 μA)
Processor only	8 mA active mode	31–53 mA	2.7 + 0.325 mA/MHz
RX	19.7 mA	44 mA	34 mA
TX	17.4 mA (+0 dbm)	44 mA	34 mA (+3 dBm)
Supply voltage (minimum)	2.7 V	3.2 V	2.7 V
Average	2.8 mW	12 mW	3 mW