Research and Design of Distributed Fire Alarm System of Indoor Internet of Things Based on LoRa

Table 3

Alarm accuracy.

Sampling node	Temperature/(°C)	Carbon monoxide/(ppm)	Smoke/(ppm)	Send alarm
1	58.2	316.8	128.4	Y
2	55.6	20.2	127.4	Y
3	54.8	19.6	387.2	Y
4	48.3	24.9	244.6	Y
5	42.8	156.9	259.1	Y
6	35.2	53.0	257.8	Y
7	26.6	25.1	154.9	N
8	19.4	11.6	102.4	N