Battery module, control method, program, and information processing system

A control method that is executed by a battery module that is connected to a communication network constituting a bus type topology, the battery module being communicable with other battery modules through the communication network, the control method comprising:

• transmitting identifier information indicating a candidate identifier that is a candidate of a communication identifier used by the battery module to all of the other battery modules through the communication network,
• performing communication arbitration for the transmitted identifier information, and
• deciding the candidate identifier indicated in the transmitted identifier information as the communication identifier used by the battery module in a case of winning in the communication arbitration,
• wherein in a case of losing in the communication arbitration, further transmitting the identifier information.

An information processing system in which a plurality of battery modules are communicably connected to each other through a communication network constituting a bus type topology,

• wherein the battery module includes
• a transmission unit that transmits identifier information indicating a candidate identifier that is a candidate of a communication identifier used by the battery module to all of the other battery modules through the communication network,
• a communication arbitration unit that performs communication arbitration for the transmitted identifier information, and
• a decision unit that decides the candidate identifier indicated in the transmitted identifier information as the communication identifier used by the battery module in a case of winning in the communication arbitration, and
• in a case of losing in the communication arbitration, the transmission unit further transmits the identifier information.