Information processing device, information processing system, information processing method, and computer program

A power conditioner including a communication unit that communicates with a first device and a second device, the power conditioner comprising:

• a first transmission unit that, when having received a transmission request from the first device, transmits information including a device state of the power conditioner itself to the first device;
• a storage unit that stores screen data for screen display;
• a creation unit that, when having received a connection request from the second device, acquires information including the device state, and creates, based on the screen data, display information for displaying a screen including the acquired information and receiving an operation on the screen;
• and
• a second transmission unit that transmits the created display information from the communication unit to the second device.