Usability Design of Human-Machine Interaction Interface of Child Companion Robot in Wireless Network

Table 1

Reliability test results.

Category	Index portfolio	Alpha coefficient
Game	Shopping center	0.8627
	Invite
	Game record
Log	Instant emotion	0.8416
	Emotional timeline
Care	Live streaming	0.7663
	Record
	Request for help
Communicate with	Voice call	0.7552
	Kids whispering
	Video call
	Picture expression