Method and system for charging robot

A robot, comprising:

• a communicator;
• and
• a processor electrically coupled to the communicator and configured to:
• monitor a battery level of the robot;
• broadcast, via the communicator, a first message indicating that a battery needs to be charged in response to the battery level that falls below a first threshold level;
• receive, via the communicator, at least one response message from one or more standby robots in response to the first message, each response message including a position and a battery level of a corresponding standby robot;
• determine a charging robot from among the one or more standby robots based on the position and the battery level included in the at least one response message;
• and
• transmit, via the communicator, a second message to the determined charging robot to cause the charging robot to move to a target position in response to the second message.

A robot, comprising:

• a communicator;
• and
• a processor electrically coupled to the communicator and configured to:
• receive, via the communicator, a first message from another robot, the first message indicating that a battery of the other robot needs to be charged;
• transmit, via the communicator, a response message including a battery level and a position of the robot to the other robot in response to the first message;
• and
• receive, via the communicator, a second message from the other robot in response to the response message, the second message requesting the robot to move to a target position to charge the other robot.