||Real-Time and Embedded Systems
Cardax FT System
Cardax FT is an integrated access control and security
monitoring system that provides state -of-the-art control and
monitoring of building security for any size building.
The systems consists of the following components -
- A PC based head-end that runs the Cardax Command
Centre FT software. The Command Centre FT software allows configuration
and monitoring of the entire system.
- Cardax FT Controllers. These controllers use TCP/IP
to communicate with the head-end PC. They are responsible for
monitoring and controlling a group of doors (up to 8) or alarm points.
The Cardax FT Controller can run stand-alone in the event of TCP/IP
communications failure, and stores all the configuration information
(including cardholder access details) necessary to operate without the
- Cardax FT Field Units. These devices communicate with
the Cardax FT controller over RS-485. A range of units is available,
including various types of card reader (including a card reader with
keypad, LCD and integrated digital intercom), input/output boards and a
My initial responsibility for this project was as
project manager and chief architect, but I have worked on all parts of
the system, including -
- An ActiveX component for viewing images from the
Cardax FT digital camera. This was developed in C++ using ATL. The
viewer communicates directly with the Cardax FT controller using UDP.
- Design of the communications protocol between the Cardax FT Controller and PC (running over TCP/IP).
- Design of the communications protocol between the Cardax FT Controller and the Field Units, over RS-485.
- Design and systems design of the encryption schemes used for both of the above protocols.
- Implementing SSL on the Cardax FT Controller.
- Implementing serial port drivers and PPP on the Cardax FT Controller.
- Design and coding of the integrated digital intercom for the Cardax ProxPlus reader.
- Code download for the Cardax FT digital camera (the
camera allows new versions of communications processor and DSP code to
be downloaded and stored in Flash memory).
© 2006 Oram Embedded Technology Ltd.