The Smaller the Better: Designing Solar Energy Harvesting Sensor Nodes for Long-Range Monitoring

Table 1

Input parameters description.

Name	Unit	Description
	mA	consumed current of the radio module in active mode
	mA	consumed current of the radio module in sleep mode
	mA	consumed current of the MCU in active mode
	mA	consumed current of the MCU in sleep mode
	s	Time On Air: duration of active radio
	s	period between two transmissions
	s	time when MCU is active for a transmission
	mA	consumed current of the sensor in active mode
	mA	consumed current of the sensor in sleep mode
	s	duration of active MCU for sensing operation
	s	period between two sensing operations
	s	duration of active sensor
	mA	consumed current of the battery manager
	V	supercapacity maximum voltage (End of Charge)
	V	supercapacity minimum voltage (Under Voltage Protection)
		efficiency rate of the MPPT device
	day	number of working days for the node
	day	number of days without harvesting
	s	duration with harvesting over one day
	s	duration without harvesting over one day