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An access badge is a physical or dematerialised element that allows its user to enter an area according to the rights granted. It can take a variety of forms depending on the intended use: credit card format, polycarbonate key fob, metal key fob, or even integrated into a smartphone or vehicle number plate.

Biometrics (fingerprint, facial recognition, etc.) is another access method that is set to develop.

Badges are used at various stages in their life cycle, from creation to monitoring (viewing events, locating the user, counting/uncounting, in premises with limited capacity), replacement in the event of loss, and cancellation.

In addition, the badge can be used to integrate with other existing systems in the company, for example to switch an alarm system on or off.

metal d credential badge by cdvi

What is the main advantage of badge-based access control compared with other identification methods?


Its main advantage over other access control systems is real-time management of its status, such as temporary or permanent deactivation if it is lost or stolen.

How do you programme and manage access badges in an access control system?


There are several ways of programming and managing an access badge. Via the management interface supplied with the access control system. Or via a badge programmer (or enroller) such as CDVI’s soon-to-be-released KPROG.

Badge tagev2 par CDVI

What badge technologies are commonly used in access control systems?


Several technologies coexist in access control systems. RFID, radio, biometric reading).

The most widely used technology today is RFID (Radio Frequency Identification).

It is subdivided into several technologies:

  • Proximity (125KHz)
  • Mifare ® (13.56MHz)
  • Mifare DESFire ® (13.56MHz), the most recent, non-duplicable technology.


CDVI, specialists in access control since 1985, offers you the full range of access badges used on the market, both physical and dematerialised.

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