Power supply control apparatus, communication system, and power supply control method

A power supply control method for controlling power supply to a plurality of communication apparatuses that are connected to a shared communication line and repeatedly transmit data, the method comprising:

• receiving data transmitted by one of the plurality of communication apparatuses via the communication line;
• determining, based on a content of the received data, whether or not the power supply to the transmission source that transmitted the data is to be cut off,
• cutting off the power supply to the transmission source if it is determined that the power supply to the transmission source is to be cut off;
• and
• in the determination whether or not the power supply is to be cut off, determining, if an interval between times when the data is received from the transmission source is less than a predetermined time period, that the power supply to the transmission source is to be cut off.

A power supply control apparatus for controlling power supply to a plurality of communication apparatuses connected to a shared communication line, the power supply control apparatus comprising:

• a reception unit configured to receive data transmitted by one of the plurality of communication apparatuses via the communication line;
• a determination unit configured to determine, based on a content received by the reception unit, whether or not the power supply to a transmission source that transmitted the data is to be cut off;
• and
• a cutoff unit configured to cut off the power supply to the transmission source if the determination unit determines that the power supply to the transmission source is to be cut off,
• wherein the transmission source to which the power supply is cut off by the cutoff unit is a communication apparatus that occupies the communication line.

A power supply control apparatus for controlling power supply to a plurality of communication apparatuses connected to a shared communication line, the power supply control apparatus comprising:

• a reception unit configured to receive data transmitted by one of the plurality of communication apparatuses via the communication line;
• a determination unit configured to determine, based on a total amount of the data received by the reception unit over a certain time period, whether or not the power supply to a transmission source that transmitted the data is to be cut off;
• and
• a cutoff unit configured to cut off the power supply to the transmission source if the determination unit determines that the power supply to the transmission source is to be cut off.

A power supply control method for controlling power supply to a plurality of communication apparatuses connected to a shared communication line, the method comprising:

• receiving data transmitted by one of the plurality of communication apparatuses via the communication line;
• determining, based on a content of the received data, whether or not the power supply to the transmission source that transmitted the data is to be cut off;
• and
• cutting off the power supply to the transmission source if it is determined that the power supply to the transmission source is to be cut off,
• wherein the transmission source to which the power supply is to be cut off is a communication apparatus that occupies the communication line.

A power supply control method for controlling power supply to a plurality of communication apparatuses connected to a shared communication line, the method comprising:

• receiving data transmitted by one of the plurality of communication apparatuses via the communication line;
• determining, based on a total amount of the data received over a certain time period, whether or not the power supply to the transmission source that transmitted the data is to be cut off;
• and
• cutting off the power supply to the transmission source if it is determined that the power supply to the transmission source is to be cut off.