What types of smart cards are commonly used for induction locks and hotel locks?

After years of development, smart card technology has gone through three stages: magnetic card, contact ic card and radio frequency card, and has been widely used in our lives. The evolution and development of smart cards have also enriched the related technologies of hotel inductive locks and promoted the technical update in the field of hotel locks. So what types of induction cards are common in the hotel lock market now?

A, magnetic card

The principle of magnetic card is to magnetize the magnetic particles on the magnetic card through the recording head. Magnetization of the magnetic card will leave the same magnetism as that of the current, and then the magnetic card will record the information sent by the current. Magnetic cards are low in cost and easy to read and write, but they are also easy to lose magnetism. The bank card that we contact daily is the magnetic card, and it is also the earliest smart card used for hotel door locks. Even now, some small hotels are still in use, but they are on the verge of elimination.

Second, IC cards.

IC card is an integrated circuit chip embedded in the fixed position of "substrate" (plastic card), which can read and write electronic information. IC card has a long history, and everyone is familiar with it. The systems supporting IC cards are SLE4442 of Siemens, PHILIPS2042 and BL7442 of Shanghai Belling. The data card uses ATMEL's memory card. The characteristic of IC card is that it is afraid of water and dust, but the price is cheaper. IC cards can be divided into contact type and non-contact type.

Contact IC card is to exchange information with the outside world through the contact piece with circuit pins left outside the plastic card after the card is inserted into the card holder. In today's inductive lock industry, commonly used IC cards can also be subdivided into different types.

TM card

TM card is the abbreviation of Touch Memory, also called IB card (iButton). TM card is an exclusive patented product of Dallas Semiconductor, a famous American semiconductor company, with

Contactless IC card is easy to operate and has the cheapness of contact IC card, and it is one of the best cost-effective IC cards at present. Each TM card has a globally unique serial number and cannot be copied. Stainless steel for TM card surface

Encapsulation can store encrypted information. TM card itself is a microcomputer chip. Because it is stainless steel package, its appearance is similar to that of button cell, and it is not afraid of water, magnetic field and dust. Suitable for schools and rentals.

Residential, sauna cabinet lock, hotel and other occasions.

Contactless IC cards exchange information with the outside world through electromagnetic waves. The basic principle of its work is that the external equipment emits a set of electromagnetic waves to the ic card, and there is an LC resonant circuit in the card, whose frequency is the same as the emission frequency.

In this way, under the excitation of electromagnetic waves, the LC resonant circuit produces * * * vibration, which makes the capacitor charged. When the accumulated charge reaches 2V, this capacitor can be used as a power supply to provide working voltage for other circuits and send data in the card.

Send or receive data from a reader.

Brief introduction of Temic card

TEMIC

Card is a low-cost, read-write RF IC card, and the card only has encryption control for writing operation. TEMIC card is produced by TEMIC company in Germany, a subsidiary of ATMEL company in the United States. It is a radio frequency card, and its working frequency is

125 kHz. Because the power supply and reading and writing operations of the card are completed by radio waves, it is not necessary to contact the card reader, so it is convenient to use.

And overcome the shortcomings of contact IC card, such as fear of water, dust and easy damage. Temic card is characterized by non-contact operation, so the system has high stability, long service life and convenient use.

Temic card is widely used in hotel intelligent door lock system because of its low card cost and low card reading module cost. Suitable for hotels, apartments, government agencies, guest houses, etc.

Brief introduction of Mifare card

MIFARE

Card is an inductive intelligent IC card with the largest usage, the most mature technology, the most stable performance and the largest storage capacity in the world. Mifare cards are produced by NXP (founded by Philips) and are used for

The contactless logic encryption card widely used in the world is characterized by its working frequency of13.56 MHz; ; High security: data stream encryption transmission, three-time mutual authentication and two-way verification mechanism; The only one in the world

32-digit card number; The card is divided into multiple sectors, and each sector can be protected by various forms of keys independently, so as to realize the functions of one card with multiple functions, and one card can be used for hotel check-in, bus payment, micropayment and door-to-door service at the same time.

Not attending, etc. It is suitable for enterprises, hotels, campuses, intelligent communities and various multi-system integration occasions that need to realize one-card system. It is also suitable for financial institutions and other occasions (banks, subways) that require high system security.

Third, the inductive ID card.

Cards can only be read but not written, which is the biggest difference from IC cards. It has the only ID code in the world, also called identification card, and its working frequency is 125KHZ. Thin is suitable for access control attendance of renting houses, families, office buildings, high-end houses and villas. There are two specifications.

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