The invention discloses an 
Internet of Things admission gateway for a video network 
system. 
The Internet of Things admission gateway comprises hardware equipment and a cloud shield 
gateway system, wherein the hardware equipment comprises an acquisition and analysis engine and a detection engine; the cloud shield 
gateway system comprises a device and asset management module, a device security 
admission control module, a device availability monitoring module, a security 
attack prevention module, a video device 
risk vulnerability detection module and an 
infrastructure management module. The 
system integrates the functions of equipment management, security admission, availability monitoring, 
attack prevention, 
vulnerability detection, equipment automatic discovery, 
equipment state detection, 
vulnerability automatic detection, access automatic discrimination, behavior automatic analysis, violation automatic blocking and the like, three-dimensional monitoring is formed from boundaries to core data, deep defense is established, security operation management is enhanced, functions of clear assets in the video 
private network at a glance, real-time alarm of equipment faults, real-
time control of safety risks, timely blocking of illegal invasion and the like are realized, and the problem of 
safe operation of the video 
private network is solved.