Patent ID: 9712946
Date: 2017-07-18
CPC Classifications: H04L,H04W

Claim:
1. A communication terminal connection control method for connecting a communication terminal to a system having a plurality of servers via any of a plurality of communication networks, wherein the plurality of servers include a terminal authenticating server for initially connecting with the communication terminal, a plurality of data collecting servers for collecting sensor information from a plurality of sensor terminals, and a managing server for connecting with the terminal authenticating server and the plurality of data collecting servers, wherein destination information corresponding to the terminal authenticating server is previously stored in the communication terminal, the method comprising: when the communication terminal sends a connection request for connection to the system, sending, by the communication terminal, the connection request to the terminal authenticating server based on the destination information corresponding to the terminal authenticating server, and sending terminal information including location information of the communication terminal to the terminal authenticating server; managing, by the managing server, operation information of the plurality of data collecting servers indicating present status information of the plurality of data collecting servers; managing, by the managing server, the location information of the communication terminal; selecting, by the managing server, a destination data collecting server, of the plurality of data collecting servers, for the communication terminal which sent the connection request to the terminal authenticating server that is in communication with the managing server based on the operation information of the plurality of data collecting servers, the location information of the communication terminal, and a predetermined priority of the information of the operation information of the plurality of data collecting servers and the location information of the communication terminal; selecting, by the managing server, a communication path for the selected data collecting server from the plurality of communication networks based on the operation information of the plurality of data collecting servers, the location information of the communication terminal, and a predetermined priority of the information of the operation information of the plurality of data collecting servers and the location information of the communication terminal; and sending, by the managing server, destination information corresponding to the selected data collecting server and the selected communication path, to the communication terminal which sent the connection request via the terminal authenticating server.