| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric lock control system in which a two-dimensional code is displayed at a portable terminal and it is used as an unlocking key, and which has a configuration capable of surely preventing fraudulent unlocking by a duplicated code even when a displayed two-dimensional code is unintentionally duplicated.SOLUTION: In an electric lock control system 1, a disclosed area and a non-disclosed area are included in a two-dimensional code Q displayed at a portable terminal 3. A reader 20 includes disclosed area decoding means for decoding the disclosed area on the basis of a captured image of the two-dimensional code Q displayed at the portable terminal 3, conversion means for converting a sound pattern generated by the portable terminal 1 to data, and non-disclosed area decoding means for decoding the non-disclosed area when the converted data corresponds to an encryption key. Successful authentication is made when data of the non-disclosed area is pertinent to normal data, and with that as a condition, an electronic key 60 is turned to an unlocked state. |
