Expansion board, data collection system, data collection method, and recording medium

A data collection method, comprising:

• communicating, through a third communication interface connectable to a network to allow communication with a device on the network, with the device on the network to collect data from the device;
• transmitting the collected data to a first terminal through a first communication interface connectable to the first terminal to allow communication with the connected first terminal;
• when the communication with the first terminal is disconnected, notifying a second terminal through a second communication interface connectable to the second terminal to allow communication with the connected second terminal, transmitting the collected data to the second terminal through the second communication interface, and stores the collected data into the second terminal;
• and
• when the communication with the second terminal is disconnected, notifying the first terminal of disconnection of the communication with the second terminal, transmitting the collected data to the first terminal, and storing the collected data into the first terminal.

A non-transitory computer-readable recording medium storing a program, the program causing a computer to perform operations comprising:

• communicating, through a third communication interface connectable to a network to allow communication with a device on the network, with the device on the network to collect data from the device;
• transmitting the collected data to a first terminal through a first communication interface connectable to the first terminal to allow communication with the connected first terminal;
• when the communication with the first terminal is disconnected, notifying a second terminal through a second communication interface connectable to the second terminal to allow communication with the connected second terminal, transmitting the collected data to the second terminal through the second communication interface, and stores the collected data into the second terminal;
• and
• when the communication with the second terminal is disconnected, notifying the first terminal of disconnection of the communication with the second terminal, transmitting the collected data to the first terminal, and storing the collected data into the first terminal.