Table 1.

Specification of the ground robots.

Item	FNR	TMSR	SWSR
Mass	0.48 kg	1.6 kg	7.33 kg
Size	9.5 × 9.5 × 13.7 cm	10 × 10 × 28 cm	34.2 × 36.7 × 9.6 cm
Maximum Speed	0	0.6 km/h	1.2 km/h
Sensors	Camera, GPS	Camera, GPS, IMU, etc.	Camera, GPS, IMU, etc.
Radio communication	Zigbee	Zigbee	Zigbee