Design of a Power Transmission Line Monitoring System Based upon Edge Computing and Zigbee Wireless Communication

Table 1

Comparison of several communication technologies and parameters.

Protocol	Zigbee	Bluetooth	WiFi
IEEE standard	802.15.4	802.15.1	802.11a/b/g
Memory requirement	432 Kb	250 Kb+	1 Mb+
Battery capacity	Year	Day	Hour
Number of nodes	65536	8	50
Transmission rate	20-250 K	<1 M	54 M
Working frequency	868 MHz-2.4 GHz	2.4 GHz	2.4 GHz
Network scalability	Autoscaling	None	None