Regarding RFID Card, this is a very popular thing nowadays! RFID is a radio frequency identification technology RFID Card is a device that uses this radio frequency technology to identify card information. To put it bluntly, it is something that can automatically read data related to specific cards.
Let’s take a look at the RFID Card structure dismantling :
1. The hardware component has an antenna that functions as sending and receiving signals; there is also a radio frequency module, which is responsible for data transmission between cards and devices; the control part is also used to process the identified card data. For example, the RFID Card in the access control system can receive signals when the card is approaching, and the radio frequency module transmits the identity and other information in the card to the control part to determine whether the door can be opened.
2. The technical principle is RF sensing. When the card is placed within the range it can sense, it transmits a radio frequency signal. The label on the card will induce an electric current and send the only information on the card back into it. Verification can be achieved by comparing the card information pre-existing in the system. Just like in the library's library management system, such technology can be used to quickly identify the RFID card tags posted on the returned book, and know whether the book needs any follow-up actions.
3. The scope of applicable scenarios is more. In terms of access control, we use it to ensure entry and exit safety in work and residential communities. Only card holders who verify matching identities can pass through. It is very convenient. The card can be opened with a wave of entry and exit. In the transportation area, subway and bus, it can be convenient to take transportation, and the card contains various information such as our recharge to complete payment. In addition, the logistics industry uses this RFID card to track and manage all aspects of cargo transportation.
4. Choose the key points and guide here :
From the performance perspective, we need to consider how fast the device reads and writes. The faster the reading speed, the less time it will definitely be, which is of great significance to the management of some places during peak periods! The sensitivity also refers to the sensing status of the card at a different distance from it, and requires good sensitivity; accuracy means accurately identifying the information in the card. When choosing, check some test data given by the product.
Focus on stability in product reliability, so that stability can be used to carry out identification work normally over a long period of time; durability is reflected in the fact that the equipment is still resistant to fabrication when it is in different external environments, such as temperature, whether the environment is humid or dusty, etc.
5. Let’s talk about the pit avoidance guide here : Set up a good use environment and stay away from some large-scale equipment that produces interference magnetic fields and electric fields. If there is such interference impact, information cannot be read or read incorrectly. Regularly maintain dust and dirt on the surface of the equipment, which may affect the signal in the antenna sensing and other parts; ensure the tightness of the contact part including the socket connections, otherwise there may be poor contact. The storage temperature is guaranteed to be within the product requirements section that is suitable for it. Provide global procurement services for weak current intelligent products!
I'll give you some questions and answers to add details:
How far is the working distance of RFID Card? The products with different models and scenarios vary greatly. The shortest ones may be a few centimeters, and are usually used in payment scenarios like e-wallets; the long distance can reach more than ten meters, such as the ultra-high frequency identification scenarios used in some automated logistics vehicles.
What do you think is better than traditional card swiping devices? Traditionally, you have to insert the card into it or get in close contact. The RFID Card can be completed by close or a small distance. No physical contact avoids damage to the card and equipment caused by frequent insertion and removal of cards. The efficiency of use is relatively high, and the operation is much simpler and more casual!
If you buy it, you need to store it for a long time. What should you pay attention to? Find a dry place to store the parts inside and wrap them with things to protect them against moisture; put them at normal indoor temperature to avoid particularly large temperature changes.
Personally, RFID Card has a strong sense of technology and can be seen in many life industries. Its convenience will continue to penetrate into more fields, and you will have more work and life in the future! For example, it can show its strengths in self-service clearance for airport passengers. The future development will definitely be broader!
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