Key technologies and applications for internet of video things Key technologies and applications in fishery forecasting Key technologies and applications of intelligent spray-painting robots Key technologies of wireless communication for internet of vehicles Key technologies of wireless access to internet of vehicles Key technologies and applications of realistic rendering in 3D virtual scene Key technologies and applications on location-based pan-information map Key technology and application of digital community based on internet of things Key technologies and application of 5G network capability exposure Basis and application of the Internet of things