Abnormality determination apparatus and abnormality determination method

An abnormality determination apparatus for determining an abnormality of a power transmission device installed on a road, the abnormality determination apparatus comprising:

• a processing unit;
• a communication unit configured to communicate with a plurality of mobile bodies each comprising a power receiving device for receiving power wirelessly transmitted from the power transmission device;
• and
• a storage unit configured to store power reception history information received from each of the plurality of mobile bodies, wherein the power reception history information includes
• a power receiving location of the received power received by the power receiving device, and
• either a power transmission efficiency calculated based on the received power, or the received power,
• wherein
• the processing unit is configured to, in response to an amount of aggregated power reception history information, in which the power reception history information of each of the plurality of mobile bodies is aggregated, being equal to or larger than a predetermined amount,
• extract information of the power receiving location where the power transmission efficiency is less than a predetermined value from the power reception history information of the plurality of mobile bodies stored in the storage unit,
• determine the abnormality of the power transmission device based on the extracted information of the power receiving location, and
• in response to a determination that the abnormality of the power transmission device has occurred in the power transmission device installed at the power receiving location, transmit power transmission device abnormality information including information on an installation location of the power transmission device in which the abnormality has occurred to instruct a repair apparatus to autonomously act to repair the power transmission device.