Mobile charging system achieved by transportation of secondary batteries

A mobile object comprising:

• a second secondary battery;
• a drive mechanism to move the mobile object by the second secondary battery as a power source;
• a receiving unit to receive a start instruction specifying a home from a server;
• a path calculating unit to refer to map information and calculate a path from a current position to the home upon receiving the start instruction;
• a movement control unit to control the drive mechanism in accordance with the calculated path;
• and
• a battery managing unit to supply power to a first secondary battery installed at the home from the second secondary battery upon reaching the home, wherein
• the movement control unit controls the drive mechanism to return to a predetermined return position from the home after power supply to the first secondary battery.

A mobile charging system comprising:

• a plurality of homes to each of which power is supplied from a first secondary battery;
• a plurality of mobile objects each including a second secondary battery and each being autonomously movable;
• and
• a server connected with the homes and the mobile objects via a communication network, wherein
• the homes each include:
• a battery managing unit to measure a battery charge level of the first secondary battery;
• and
• a communication unit to transmit first battery information including the battery charge level together with a home ID to the server,
• the server includes:
• a first receiving unit to receive the first battery information from each of the homes;
• a second receiving unit to receive second battery information including a battery charge level of a second secondary battery from each of the mobile objects;
• a first determining unit to determine whether or not one or more homes with a battery charge level indicated in the first battery information being lower than a first threshold are present;
• a second determining unit to determine whether or not one or more mobile objects with a battery charge level indicated in the second battery information being equal to or higher than a fourth threshold are present;
• and
• a transmitting unit to transmit a start instruction when a home with the battery charge level in the first secondary battery being lower than the first threshold is present, the start instruction specifying the home, the transmitting unit transmitting the start instruction to any one of mobile objects in a standby state and with the battery charge level of the second secondary battery being equal to or higher than the fourth threshold,
• the mobile objects each include:
• a drive mechanism to move the mobile object;
• a receiving unit to receive the start instruction;
• a path calculating unit to refer to map information and calculate a path from a current position to the home specified by the start instruction upon receiving the start instruction;
• a movement control unit to control the drive mechanism in accordance with the calculated path;
• and
• a battery managing unit to supply power to the first secondary battery installed at the specified home from the first secondary battery of the mobile object upon reaching the specified home, and
• the movement control unit of each of the mobile objects controls the drive mechanism to return from the home to a predetermined original position after power supply to the first secondary battery.