AshtonSecurity Inc.

  When it comes to access control systems for businesses, there are a few different options to choose from. The most common type of access control system is the access card. Access cards for security are plastic cards that have a magnetic strip or an embedded chip on them. The magnetic strip contains encoded information about the cardholder, such as their name and photograph. When the access card is swiped through a card reader, the card reader extracts this information and compares it to the information stored in the access control system database. If the information matches, then the cardholder is granted access to the premises. Another type of access control system is biometric authentication. This system uses fingerprints or facial recognition software to identify the cardholder. The advantage of using biometric authentication is that it is much more secure than using access cards. However, it is also more expensive to set up and maintain. The final option is keyless entry sys...

  A proximity card is a device used to identify people on the basis of their membership in some group or class. These cards are made of thin pieces of plastic, similar to credit cards. They function by activating RFID chips which use electromagnetic fields to transfer data between the prox card and the prox reader (a device similar to but not identical with the prox card). A prox card will be inactive until it is "awakened" by prox reader using an alternating magnetic field. The presence of an activated prox chip in close enough range to a prox reader causes that prox reader's antenna coil to generate an AC voltage whose frequency reflects both on proximity of the tagged individual and also on data stored exclusively in the memory inside the prox chip itself. How Does A Proximity Card Reader Work? How prox card readers work is a popular question. Prox cards ii support many applications and card readers come in different shapes and sizes, each designed for different tasks....