<h1>RFID Door Lock System: Enhancing Security and Convenience</h1> <p>An <strong>RFID door lock system</strong> represents a significant leap forward in access control technology. By utilizing radio-frequency identification, these systems provide a keyless, secure, and highly manageable method for securing doors in residential, commercial, and industrial settings. My personal experience with installing and using these systems has shown me that their true value lies not just in the technology itself, but in the seamless integration into daily life and operations.</p> <h2>How an RFID Door Lock System Works: A Technical Perspective</h2> <p>At its core, an <strong>RFID door lock system</strong> consists of a reader, a control unit (often integrated), an electric lock mechanism, and RFID tags or cards. The reader emits a low-power radio signal. When an authorized RFID tag comes within range (typically 5-10 cm for proximity systems), the tag's embedded antenna picks up the signal, powers its microchip, and transmits its unique identification code back to the reader. The control unit verifies this code against a stored database. If it's a match, it sends a signal to the electric lock to disengage.</p> <h3>Key Technical Specifications and Parameters</h3> <p>When selecting an <strong>RFID door lock system</strong>, understanding the technical specifications is crucial. Here are detailed parameters for a typical high-frequency (13.56 MHz) system, commonly used for door access:</p> <h4>Reader Module Specifications:</h4> <ul> <li><strong>Operating Frequency:</strong> 13.56 MHz (ISO/IEC 14443 A/B & 15693 standards)</li> <li><strong>Reading Distance:</strong> 50 - 100 mm (dependent on tag type)</li> <li><strong>Communication Interface:</strong> Wiegand 26/34, RS485, TCP/IP</li> <li><strong>Power Supply:</strong> DC 12V ±10%, Operating Current: < 100mA</li> <li><strong>Chipset/IC:</strong> NXP RC522 or similar reader IC.</li> <li><strong>Dimensions (Reader Head):</strong> 86mm x 86mm x 12mm (standard EU backbox size).</li> </ul> <h4>Control Board/Unit:</h4> <ul> <li><strong>Microcontroller:</strong> ARM Cortex-M3 core, 32-bit.</li> <li><strong>Memory:</strong> Supports up to 10,000 user cards, 100,000 event logs.</li> <li><strong>Operating Temperature:</strong> -20°C to +70°C.</li> </ul> <h4>RFID Card/Tag:</h4> <ul> <li><strong>Type:</strong> Mifare Classic 1K (S50) or Mifare DESFire EV2.</li> <li