| 摘要 |
A presence-at-home information acquisition system is provided with an identifier table update means and a presence-at-home information distribution control means. When a user inputs permission to acquire presence-at-home information on the user, an identifier table update means stores a first identifier for identifying the user and a second identifier designated by a request for acquisition of the presence-at-home information in an identifier table storage means, with both identifiers associated with each other. The presence-at-home information distribution control means judges whether or not the second identifier is stored in the identifier table storage means. When judging that the second identifier is stored, the presence-at-home information distribution control means acquires the presence-at-home information on the user specified by the first identifier associated with the second identifier from the presence-at-home information storage means.
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