An intelligent approach to metal detection

April 2006 Access Control & Identity Management

The Goldfinger III from Saflec hails a new era in high sensitivity, analytical precious metal detection. The basic system comprises a walkthrough frame coupled to PC software running analysis and detection software. A standard security system built around the Goldfinger would have six automatically controlled interlocking doors with search and holding areas with fingerprint readers for the positive identification of the person passing through.

Each person who is to pass through the detector is 'trained' by the software which creates a unique body effect for each person, each direction. This training value is linked to the person with a unique identifier.

When the same person passes through after the training phase, a software comparison is done of the detector reading against the known body effect stored in the database for that individual. Any small changes are then analysed and readings greater than acceptable limits will cause the system to 'fail' the person.

For added security it is also possible to randomly fail a person even though their readings might be acceptable.

People in this detection database are managed by grouping similar individuals together, so you could have various levels of security - having some groups with a higher random search rate, and others with tighter acceptable limits.

Due to the sensitivity of the detector a person should be totally metal free when passing through the detector. To this end a 'Clean' and 'Dirty' philosophy should be implemented with people having work clothing, metal free clothing and home clothing.

Applications include mines, mints, precious metal refineries, jewellery manufacturers, MR examinations, CD manufacturers and IC manufacturers.

For more information contact Gordon Curr, Saflec Systems, 011 477 4760,


Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Gallagher Security releases Command Centre v9
Gallagher News & Events Access Control & Identity Management Integrated Solutions
Richer features, greater integrations, with the release of Gallagher Security’s Command Centre v9 security site management software designed to integrate seamlessly with various systems and hardware.

Paxton’s Net2 secures medicinal cannabis facility
Paxton Access Control & Identity Management Healthcare (Industry) Videos
Paxton’s Net2 access control has been installed at Highlands Grow, a fully licensed industrial-scale cultivator, producing cannabis for medicinal and recreational use.

Lock down your access control with Alcatraz AI
C3 Shared Services Healthcare (Industry) Access Control & Identity Management AI & Data Analytics
Alcatraz AI, represented in South Africa by C3 Shared Services, changes access control by harnessing the power of artificial intelligence and analytics at the edge, where facial recognition becomes the essential credential autonomously.

Effective access control
Flow Systems Access Control & Identity Management Products & Solutions
Flow Systems has introduced its new Extra Heavy Duty Industrial Rising Vehicle Barrier, which provides a high level of protection. It is a traditional-looking control barrier with the benefits of high-level physical protection.

Newport Aquarium replaces traditional locks and keys
Paxton Access Control & Identity Management Entertainment and Hospitality (Industry)
Newport Aquarium wanted to replace its old security system with an easy-to-use and high-security access control solution to keep the animals, visitors, and staff safe. The solution was Net2, a PC-based access control system that offers centralised administration.

Securing easy access
Suprema neaMetrics Access Control & Identity Management
Securing access to hospitals and healthcare institutions presents a unique set of challenges, because these facilities operate 24/7, have highly ‘open’ access in public areas and require a strict level of security.

Reliable mass notification
Access Control & Identity Management
The use of voice alarm and voice evacuation systems within the healthcare industry ensures a safer and more reassuring environment in the event of an emergency.

Upgrading security at lifestyle estate
Turnstar Systems Access Control & Identity Management
Lifestyle estates are often located in out-of-town settings, and living away from the hustle and bustle of the city can be conducive to a relaxing lifestyle. However, it requires a high level of security to keep residents secure.

Protecting our most vulnerable
Access Control & Identity Management
In a nation grappling with the distressing rise in child kidnappings, the need for innovative solutions to protect our infants has never been more critical. South Africa finds itself in the throes of a child abduction pandemic.

New generation of cyber-focused controllers
Gallagher News & Events Access Control & Identity Management Products & Solutions
The C7000 gives users an opportunity to leverage their hardware and firmware to build a platform designed to catapult their organisation into the future, with cybersecurity baked in from inception.