[Retracted] Remote Care Assistance in Emergency Department Based on Smart Medical

Table 4

Test packet loss rate with obstacles.

Test distance (meters)	Bluetooth (%)	UART (%)	RS485 (%)
100	0	0	0
300	2.16	1.92	2.04
500	4.53	4.08	4.87
700	7.12	6.41	7.92
900	11.72	9.83	10.76
1100	15.37	13.26	14.41