10-Sarbide Kontrol Txartelaren bit-zenbakia eta 8 biteko zenbakia bihurtzeko erlazioa

Sarbide kontrolatzeko sisteman normalean, 8 biteko txartelaren zenbakia wieg eta 26 biteko irteera da, 10 biteko txartelaren zenbakia wieg eta 34 biteko irteera da.
Adibidez, txartel batean inprimatzea:
0013961168 10-bit txartelaren zenbakia,
edo
213 02000 3+5 8-bit txartelaren zenbakia.
10-bit txartelaren zenbakia 0013961168, hamaseitar bihurtzea da 00 D5 07 D0.
8-bit txartelaren zenbakia 213 02000, lehenengoa 3 zifrak 213 converted to hexadecimal is D5, the last five digits 02000 converted to hexadecimal is 07 D0.

Horregatik, the rules can be found: First, the 10-digit conversion to hexadecimal is 4 byteak, 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)