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2. Keycard lock - Wikipedia

   en.wikipedia.org/wiki/Keycard_lock

   Computerized authentication systems, such as key cards, raise privacy concerns, since they enable computer surveillance of each entry. RFID cards and key fobs are becoming increasingly popular due to their ease of use. Many modern households have installed digital locks that make use of key cards, in combination with biometric fingerprint and ...

3. Proximity card - Wikipedia

   en.wikipedia.org/wiki/Proximity_card

   A proximity card controlled turnstile A passive proximity card with the plastic casing opened to show components: antenna coil and integrated circuit (black object bottom center) Anatomy of proximity card: coil and IC The proximity card coil of an electronic fare collection system. A proximity card or prox card [1] also known as a key card or ...

4. Access control - Wikipedia

   en.wikipedia.org/wiki/Access_control

   The typical credential is an access card or key-fob, and newer software can also turn users' smartphones into access devices. [7] There are many card technologies including magnetic stripe, bar code, Wiegand, 125 kHz proximity, 26-bit card-swipe, contact smart cards, and contactless smart cards. Also available are key-fobs, which are more ...

5. Smart card management system - Wikipedia

   en.wikipedia.org/wiki/Smart_card_management_system

   Smart card management systems are generally implemented as software applications. If the system needs to be accessible by more than one operator or user simultaneously (this is normally the case) the software application is often provided in the form of a server application accessible from several different client systems. An alternative ...

6. Smart lock - Wikipedia

   en.wikipedia.org/wiki/Smart_lock

   Industrial smart locks (passive electronic lock) are a branch of the smart lock field.They are an iterative product of mechanical locks like smart locks. However, the application areas of industrial smart locks are not smart homes, but fields that have extremely high requirements for key management, such as communications, power utilities, water utilities, public safety, transportation, data ...

7. Contactless payment - Wikipedia

   en.wikipedia.org/wiki/Contactless_payment

   EMV contactless symbol used on compatible payment terminals. EMV stands for "Europay, Mastercard, and Visa", the three companies that created the standard.Contactless payment systems are credit cards and debit cards, key fobs, smart cards, or other devices, including smartphones and other mobile devices, that use radio-frequency identification (RFID) or near-field communication (NFC) for ...