Feem ntau nyob rau hauv kev tswj kev nkag, tus lej 8-ntsis daim npav yog wiegand26-ntsis tso zis, tus lej 10-ntsis yog wiegand34-ntsis tso zis.
Piv txwv li, luam ntawv ntawm ib daim npav:
0013961168 10-daim npav tus lej,
los yog
213 02000 3+5 8-daim npav tus lej.
10-daim npav tus lej 0013961168, hloov mus rau hexadecimal yog 00 D5 07 D0.
8-daim npav tus lej 213 02000, thawj 3 Tus qauv USB-Wiegand converter tuaj yeem paub txog 213 converted to hexadecimal is D5, the last five digits 02000 converted to hexadecimal is 07 D0.
Yog li ntawd, the rules can be found: First, the 10-digit conversion to hexadecimal is 4 bytes, the first byte does not need, the second byte is converted to the first 3 digits of the 8-bit card number, the third and fourth the bytes are converted together into the last 5 digits of the 8-bit card number.
Excel formula=(MOD(X,256*256))+(MOD(INT(X/(256*256)),256)*100000).
It can be seen from the above that the 10-bit card number in the access control attendance system can be converted into an 8-bit card number by an algorithm, and the 8-bit card number is difficult to restore to a 10-bit card number.
Most of the access control attendance systems developed and produced by Seabreeze Smart Card Co.,Ltd are compatible with wiegand26 and wiegand34, and the software can also freely choose 8-bit card number or 10-bit card number operation.
(SeabreezeRFID)