17 January 2012


GSC’s New Facial Recognition unit


Facebook fans are using it to tag friends; police departments and casinos around the world are using it to identify criminals and blacklisted gamblers, and a growing number of businesses are utilizing facial recognition technology to replace traditional time and attendance systems.


According to Zane Greeff, technical director of Elvey Security Technologies, facial recognition has come a long way since its pioneering days in the early 1960s.

Computer-based face verification and identification has evolved to the point that it can now reliably be used to match faces to identities,” says Greeff, adding that its ability to measure facial nodal points such as the distance between a person’s eyes and the shape of their bone structure in a non-contact manner makes it ideal for security and other applications.


“The information age has revolutionised the way everyday transactions such as ATM deposits and withdrawals, internet banking, and burglar alarm activating and deactivating are done.  The challenge, of course, is to find new and more secure ways of safe-guarding people’s identities than the traditional pin code which is all too often accessed by criminals to perpetrate credit card and internet banking fraud,” he says.


Unique, except in the case of identical twins, he says people’s faces are now literally opening doors for them. 


To this end, he welcomes the release of GSC’s new 647-80 Fingerprint and Facial Recognition System, which he says is ideal for access control and time and attendance monitoring.  Able to identify users by face, fingerprint, or face plus fingerprint, the system can be programmed to accommodate various levels of authentication. It also allows for the enrolment of multiple fingerprints per employee so that if one finger is injured, the person can still gain access to the facility. 


Primarily intended for time and attendance applications, the facial recognition component can operate as a simple stand-alone unit, which will allow unrestricted access to valid users.  For access control, he says the unit can be connected to ProxNet using a 649-10 interface, or ProxnetPro with an 822-10 interface.


The system comes standard with two high resolution cameras for improved facial recognition and an infra-red illumination system that enables user identification even in a dark environment. It also boasts a 630MHz high speed processor and large capacity memory for the storage of templates and transactions. Equipped with a colour touch screen that provides the interface for system configuration and the enrolling of fingerprint  and facial templates, the system both prompts users with regards to correct facial positioning and indicates when a face is identified.


For Stand-Alone applications the unit has a relay for operating a door strike and has provision for an Exit pushbutton. In ProxNet and ProxnetPro systems, these functions are provided by the interface. The unit also has a relay which can be wired to ring a bell for time and attendance applications.


A single 647-80 facial recognition unit can be connected to a PC via RS-232. Multiple units can be connected using RS-485, which can accommodate up to 16 units or TCP/IP to a maximum of 254 units.  


For face and fingerprint template back-ups, Greeff says all that’s required is a simple PC software programme.  In the event of data loss, the saved templates can be restored to the original unit and also uploaded to other units connected to the PC.


This software is also used to download clocking records for processing, in either MP-Lite or TimeMaster.  The unit’s USB ports allow for data exchange between units through the use of a flash drive, and for downloading transaction data in text format.


The system is supplied with a 220VAC power adaptor for powering the unit but, he points out, door strike and bell applications will require an external power supply.




Prepared and submitted by Priyesh Jagjivan

Elvey Security Technologies

Tel – 011 4016700

Email –


Elvey Marketing