Patent ID: 7275970

Claim:
A plug error insertion prevention system that prevents a plug intended for use with a specified plug insertion socket of a plug insertion section from being inserted into an incorrect plug insertion socket of the plug insertion section, the system comprising: the plug; and the plug insertion section; wherein the plug includes: an electric power generation unit that generates electric power to drive the plug, the electric power being generated by an electromagnetic wave from the plug insertion section; a first identification information storage unit that stores first identification information for identifying the specified plug insertion socket corresponding to the plug; a first identification information transmission unit that sends the first identification information to a desired plug insertion socket; a response information receiving unit that receives response information from the plug insertion section; and a plug state notification unit that notifies a system user of a plug state relative to the desired plug insertion socket based on the response information received by the response information receiving unit, and wherein the plug insertion section includes: a second identification information storage unit that stores second identification information for identifying the plug corresponding to the specified plug insertion socket; a first identification information receiving unit that receives the first identification information from the plug; an identification information comparing unit that compares the first identification information received by the first identification information receiving unit and the second identification information; a response information generation unit that generates response information to the plug based on a comparison result of the identification information comparing unit; a response information transmission unit that sends the response information generated by the response information generation unit to the plug; and a plug insertion socket state notification unit that notifies the system user of a plug insertion socket state relative to the plug.