Suppose the hotel needs to collect the door opening and closing date from the hotel lock.
The Mifare card hotel lock system only needs to use the Mifare 4 S70 card to obtain the MIFARE hotel lock data, but the Temic hotel door lock should be collected using a data collector.
For hotel applications, the Mifare 13.56MHz RFID hotel lock will be better than the Temic hotel lock regarding security, reliability, and system scalability.
- MIFARE card is currently the world’s most used inductive smart IC card with the most mature technology and the most stable performance.
- Strong anti-interference ability. There is a fast anti-collision mechanism in the MIFARE card, which can effectively prevent data interference between cards when multiple cards enter the read-write range at the same time.
- The storage structure and characteristics of the MIFARE card (large capacity-16 partitions, 1024 bytes) have robust system application scalability and can genuinely achieve “one card with multiple uses.”
- The reading and writing of the data recorded in the Mifare card require corresponding password authentication. Even each area in the card has different password protection to protect data security fully.
Working and reading distance:
Simultaneously, in the actual use of RFID hotel door locks, the Mifare and TEMIC room keys (card) are different.
Since most hotel door locks, the primary material used for hotel door locks is metal, except for the front and back sides, the antenna will be surrounded by metal, and metal will attenuate RF signals. The 125KHz and 13.56MHz RFID signals will be affected.
In this environment, the higher frequency (13.56MHz) can still maintain an acceptable working distance within 3-5cm, which is better than 125KHz (only 1-2cm left).
3, Mifare hotel lock and Temic hotel lock function parameter comparison
|Temic Hotel Door Locks||Mifare RFID Hotel door locks|
|Working Frequency||125KHz||13.56 MHz|
|Brand||Temic E5551 Atmel T5557||Mifare|
|Major brand used||Temic E5551, Atmel T5557||Philips Mifare S50|
|Capacity||264bit / 330||8Kbit 16 sectors|
|All-in-one card Application in hotel||unavailable||Available|
|Working distance from hotel door lock||Less than 2cm||Contactless More than 3-5cm|
|Stability of card data saving||Easy lost||Never lost|
|Hotel Door lock cost||Low||High|
|Card encoder cost||Low||High|
|Security||Simple Encrypted||DES Encryption|
|Easy copied by a special device||Not easy copied|
|Room key Read/write life||More than 100,000 times||More than 100,000 times|
|Data collection Device||Temic data collector||Mifare 4 S70 card|
|Hotel elevator control||No supporting||Supporting|
4, Please Noted:
And the entire RFID hotel door lock system usually includes four essential elements: RFID hotel locks, RFID guest room cards, RFID card encoders, and hotel lock system management software. These four elements are interrelated and crucial.
The hotel lock (main PCB), RFID room card, management software, and room card encoder in the RFID hotel lock system must be compatible with each other. And these products must come from the same manufacturer or supplier as much as possible;
Otherwise, they will not work. Because different manufacturers or suppliers have their encryption methods to encrypt these products, you cannot use a hotel lock from one manufacturer but use software and encoders from another manufacturer.