UNAUTHORIZED CONNECTION DETECTION DEVICE, UNAUTHORIZED CONNECTION DETECTION SYSTEM AND METHOD FOR DETECTING UNAUTHORIZED CONNECTION

摘要

Provided is an unauthorized connection detection device (100) for detecting whether or not an electricity storage device is an unauthorized electricity storage device, comprising a communication unit (110) which receives first charge and discharge information in which first identification information for identifying the encryption key of the electricity storage device, the key being used for a mutual verification conducted between the electricity storage device and a charge and discharge device (200) to which the electricity storage device is connected, is associated with first connection information relating to the electricity storage device, which is acquired when the electricity storage device is connected to the charge and discharge device (200); and an unauthorized connection detection unit (120), which detects whether or not the electricity storage device connected to the charge and discharge device (200) is an authorized electricity storage device by determining, using the first identification information included in the received first charge and discharge information and the first connection information, whether or not a plurality of the electricity storage devices exists which corresponds to the same first identification information.