Choice of technology

Alwin integrates all identification technologies offered by major manufacturers on the market (HID, Stid, Indala).
The choice of technology to use depends on several criteria: safety remains the most important,  user comfort is increasingly determinants.

Here are the different available technologies:

Technologies contact

  • Barcode & barcode hidden: the oldest but not secure technology. To avoid easy reading the bar code, it can be hidden but the security level is very low. Example: card for the canteen
  • Magnetic: reading a badge contact (insert or scroll). This technology is mainly used for applications where the required level of security is not important.
  • Smart card contact: information is stored in a memory inserted in a plastic holder. Example: health card or credit card.

Contactless technologies: RFID

  • La RFID (Radio Frequency Identification) is an identification technology using radio communication. It is remotely read the information contained within an RFID chip. These chips contain an identifier and are integrated in a card (badge), a key fob, remote control).
  • Low frequency – 125 KHz: The badge serial number is registered in the electronic chip, itself integrated into a badge. This is the antenna (or reader) that will determine the reading distance between the badge and the antenna. Robust, wear-free and easy to set up, this technology has been a success worldwide making it a standard today.
  • HF- 13.56 MHz: Mifare, Mifare + Desfire, iCLASS, Legic, etc: First RFID technology have been the subject of international standards (ISO14443-A / B and ISO15693). Its characteristics make it an ideal choice when speed, security and memory capacity are required. The memory chip can record various information (photo, text) and increases the level of security since an encrypted number can be registered in the memory of the card using an encoder. This can be useful biometrics such as fingerprint is stored on the badge
  • UHF – 433 MHz, 863 to 915 MHz, 2.45 GHz : The button allows it to be read from several meters.
  • Biometrics: La Biometrics allows the identification or authentication of a person on the recognizable and verifiable database of its own. Within the physical access management, data analyzed are morphological: fingerprint, hand geometry, facial features, drawing the eye to the venous network.

How works RFID?

The reader transmits a signal at a specific frequency to a radio tag located in the reading field. When the label, also called tag, label or transponder is “awakened” by the reader, it transmits a return signal and a dialogue is established according to a predefined communication protocol.
The read distance ranges from a few centimeters to a few ten of meters.

What is an identifier?

An identifier takes the form of a card or badge containing recorded information. It can also correspond to a key ring, remote control, biometrics or a license plate.

2 operating modes:

  • Authentication: In this mode, we ask the question: “Am I right Mr. X? “. Technically, the system checks against a code (ID) entered on a keyboard or read by passing a card (smart card, magnetic, proximity) provided that the biometric sample matches the designated template by the identifier.
  • Identification: For this mode, the simple question is asked: “Who am I? “. From the biometric sample provided, the device looks for the matching template in the database.

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© 2015 Alcea. All rights reserved