| 摘要 |
PROBLEM TO BE SOLVED: To provide an access control system, data storage device, access control method, data storage method, and program in which processing can be efficiently performed.SOLUTION: An access control method performs the following steps: registering a retrieval expression in a retrieval expression storage database and retrieving sensor data from a sensor data storage database; performing registration of the sensor data and retrieval of a retrieval expression to a data storage device corresponding to a hierarchical disclosure condition; and performing registration of a retrieval expression and retrieval of sensor data to a group that includes the data storage device corresponding to the hierarchical disclosure condition and also includes higher-level data storage devices. |
