electronproton
Newbie level 6
![Newbie level 6](/styles/images/ranks/blevel3.gif)
Hi all..
I intend to make multiple security doors (maybe 4) with keypad or rfid that all connected to a server pc so the pc can monitor and control the doors.
I think I should use RS-232 to RS-485 converter then connect all the doors to the pc via 485 and for the pc i use borland delphi to control and monitor the security doors.
I have questions:
1. should i use EEPROM for the users id and passwords OR should i transfer all the incoming id to the pc then the pc check if the id is right/wrong and then decide to open/not open the door.
2. if i use the 2nd option, will it be efficient (in time)?
3. can someone give me ideas to improve my idea?
Sorry for my bad English
Thx
Dnl
I intend to make multiple security doors (maybe 4) with keypad or rfid that all connected to a server pc so the pc can monitor and control the doors.
I think I should use RS-232 to RS-485 converter then connect all the doors to the pc via 485 and for the pc i use borland delphi to control and monitor the security doors.
I have questions:
1. should i use EEPROM for the users id and passwords OR should i transfer all the incoming id to the pc then the pc check if the id is right/wrong and then decide to open/not open the door.
2. if i use the 2nd option, will it be efficient (in time)?
3. can someone give me ideas to improve my idea?
Sorry for my bad English
Thx
Dnl