In-home unit management system

摘要

The home appliance managing system includes a plurality of central managing devices and a center server. The center server is connected to the plurality of the central managing devices, and stores plural data used at home appliances. When the central managing device stores predetermined data requested by the home appliance, the central managing device sends the predetermined data to the home appliance. When the central managing device does not store the predetermined data, the central managing device requests the predetermined data from the center server. The center server sends the predetermined data to the central managing device in response to the request from the central managing device. The central managing device sends the predetermined data received from the center server to the home appliance and stores the same data. The center server selects the cache data from the plural data on the basis of the data previously sent to the central managing device, and sends the cache data to the central managing device. The central managing device stores the cache data received from the center server.