Multimedia broadcasting system in multiple node structure and multimedia broadcasting control method thereof

A multimedia broadcasting control method, applied to a multimedia broadcasting system having a multiple-node structure, wherein the multimedia broadcasting system having the multiple-node structure comprises:

• a plurality of nodes, wherein each of the plurality of nodes is coupled to at least one of the plurality of nodes, and the plurality of nodes comprises:
• a plurality of server nodes, wherein each server node is coupled to at least one server node of the plurality of server nodes and provides at least one multimedia content, wherein the server nodes coupled with each other share resources with each other and take partial or entire control of each other;
• and
• a plurality of multimedia-playing terminal nodes, wherein each multimedia-playing terminal node receives multimedia content transmitted by a server node of the plurality of server nodes and plays the multimedia content, and
• wherein the multimedia broadcasting control method comprises:
• transmitting, by a first server node of the plurality of server nodes and via a second server node of the plurality of server nodes which is coupled to the first server node, a first multimedia content to at least one multimedia-playing terminal node controlled by the second server node to make the at least one multimedia-playing terminal node play the first multimedia content,
• wherein the multimedia broadcasting control method further comprises:
• transmitting a message among the plurality of nodes by complying with a transmission protocol;
• and
• limiting nodes which are able to access the message and nodes which are able to transmit the message according to authority settings of the message, so as to achieve different transmission structures,
• wherein the transmission protocol comprises a key, a transmission source, a transmission target, an identifier and message content, and the message is encrypted using the key,
• wherein the multimedia broadcasting control method further comprises:
• calculating a best path between each node and a target node according to a node connection relationship table of the node;
• setting the key;
• and
• transmitting the message through the best path, along with the key,
• wherein the multimedia broadcasting system having the multiple-node structure comprises at least one group, each of the at least one group comprises at least one server node of the plurality of server nodes, and the multimedia broadcasting control method further comprises:
• when a group is newly added into the multimedia broadcasting system having the multiple-node structure, setting an address of a third server node of the plurality of server nodes to a node connection relationship table of a server node of the group, transmitting, by the server node of the group, a request for a node connection relationship table to the third server node, and transmitting, by the third server node, a node connection relationship table of the third server to the server node of the group to make the server node of the group obtain capability of communication with the plurality of server nodes.