| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric lock device without requiring a person receiving unlock authorization, to tell his cipher number to an authorizing person. SOLUTION: A number Y determined by Y=δ×n+F(x) from a numerical value F(x) determined by a cipher number X according to the cipher number X of a person receiving unlock authorization, an optionally selected numerical valueδ, a specified numerical value (n) and a regulation F is made an assigned number, and the assigned number is stored in a memory 31 of an ECU 3 by a lock-unlock operating means 1. At the same time, a locking-unlocking means 2 is put in action to lock an electric lock device. An operator performs unlocking operation including the input of an unlock number W by the lock- unlock operating means 1. At this time, the ECU 3 judges whether Y-F(w)is divided by (n) within a range of integers from the inputted unlock number W, the assigned number Y stored in the assigned number memory 31, and the numerical value (n) stored in a numerical value memory 34, and in the case of being divided, the ECU judges that the unlock number W is in specified relation to the assigned number Y, and unlocks.
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