Edge environment-oriented video transmission system and transmission method thereof

The invention discloses an edge environment-oriented video transmission system and a transmission method thereof. The system mainly comprises a controller, edge equipmentdevice, mobile equipment and avideo server. And tThe controller calculates the a CPU load of anthe edge device and anthe access point edge device of the mobile device through the an edge device CPU load model, and controls the circulation of the video traffic by issuing a flow table entry to the edge device. The edge device is a carrier for bearing a network function, runs a network function instance for checking video traffic, and caches a video block. The mobile device operates the video client, can be used for watching videos, and periodically uploads position and communication radius information to the controller. Thevideo server divides a video into a plurality of video blocks with fixed sizes, and the video blocks are cached on the edge device through a caching strategy of the controller. According to the system disclosed in the inventi