Content distribution system, content distribution method, and integrated monitoring device

A content distribution method comprising:

• connecting a first external display terminal and a first interface circuit to each other, the first external display terminal being among a plurality of external display terminals to display display-information received through wireless communication, the first interface circuit being among a plurality of interface circuits to receive terminal attribute information, the terminal attribute information being information transmitted from any of the external display terminals and enabling identification of the external display terminals;
• generating content to be provided to the first external display terminal;
• transmitting the content to the first external display terminal through wireless communication;
• and
• displaying the content, wherein
• connecting the first external display terminal and the first interface circuit to each other includes:
• transmitting the terminal attribute information from the first external display terminal to the first interface circuit through wireless communication when the first external display terminal is brought toward the first interface circuit to a point at a specific distance from the first interface circuit;
• and
• transmitting circuit attribute information and the terminal attribute information from the first interface device to integrated monitoring circuitry, the circuit attribute information enabling identification of the first interface circuit, and wherein
• generating the content includes generating, at the integrated monitoring circuitry, the content corresponding to the circuit attribute information and the terminal attribute information.