Today, with the rapid development of Internet of Things technology, the application scope of RFID technology is becoming more and more extensive. Access control, time and attendance, retail, medical, logistics and other industries all need to use RFID technology. Of course, the needs of different industries are different, and the applications and requirements for RFID technology are also different. Therefore, the RFID technology selected by different industries is different. Today, let’s talk about the applications of passive HF RFID smart labels in different industries.
What are Passive HF RFID Smart Labels?
According to the different power supply methods of electronic labels, RFID technology can be divided into active RFID and passive RFID.
Among them, active RFID relies on internal battery power and supports long-distance identification. The sensing range is generally 120-150 meters. It has a larger working distance and larger storage capacity, and has more powerful computing power. It can actively send messages to readers. A signal containing interactive information at a specific frequency. At the same time, due to the influence of battery energy, the life of active RFID is not very long, generally only 3-10 years.
Passive RFID is activated by external energy. When the passive RFID label is close to the RFID reader, its antenna converts the received electromagnetic wave energy into electrical energy, activates the chip in the RFID label, and sends the data in the RFID chip. . The identification distance of passive RFID is generally not long, usually shorter than 10 centimeters, but its service life is relatively long.
According to different frequencies, RFID technology includes low frequency, high frequency, ultra-high frequency, microwave, broadband, and millimeter wave. Among them, the operating frequency of high-frequency RFID is usually 13.56MH, which uses the principle of electromagnetic coupling for communication, and its reading range is usually tens of centimeters.
Therefore, a passive HF RFID smart label is an RFID smart label that does not have a built-in battery and the operating frequency is usually 13.56MH. Its features include strong anti-interference ability, user-defined reading and writing of standard data, and faster efficiency in specialized application systems.
Common types of passive HF RFID smart labels and their applications
AAs we all know, to a large extent, the chip determines the characteristics and applicable scenarios of RFID smart tags. Next, we will classify different chips and introduce their common application scenarios.
MIFARE Classic® EV1
MIFARE Classic® EV1 is an important representative of the MIFARE Classic® series. Its functions include:
- It has good compatibility and can be compatible with the previous MIFARE Classic® chip;
- High security, using higher-level encryption algorithms and security mechanisms, which will be difficult to imitate or crack;
- Available in different storage capacities to provide a more flexible solution;
- Multiple applications can be run on one card at the same time, making the card more efficient and valuable;
- It has good reading and writing performance, which improves the response speed and efficiency of the system;
- It can operate stably in various environments and has a long service life.
Based on the above characteristics, the main application scenarios for smart labels using MIFARE Classic® EV1 include Public transportation, Access management, Electronic toll collection, Car parking, etc.
MIFARE Ultralight® EV1
MIFARE Ultralight® EV1 is an evolved version of the MIFARE Ultralight® series. Its main features include:
- It features an encryption function that actively prevents data from being read or tampered with, thereby enhancing the security of the system.
- Available in different storage capacities;
- Typically only support a single programming. We cannot change the data written on the chip.
- These tags have fast read and write speeds and can complete data exchange in an instant.
The main application scenarios of smart labels using MIFARE Ultralight® EV1 include Public transportation, Loyalty, etc.
Passive HF RFID smart labels, as an advanced Internet of Things technology, have demonstrated their unique advantages and broad application prospects in many fields. Smart labels have brought great convenience to all walks of life through their non-contact, fast reading and writing characteristics. With the continuous advancement of technology and the continuous expansion of application scenarios, RFID smart labels will play an important role in more fields, bringing more convenience and possibilities to our lives.
FAQs
1. Do passive HF RFID smart labels need to be charged?
unnecessary. They communicate with readers via high-frequency electromagnetic waves and require no built-in power source or charging.
2. What is the reading distance of passive HF RFID smart labels?
The type of label, the power of the reader, and environmental interference actively influence the reading distance of passive HF RFID smart labels. Generally speaking, the read range of passive HF RFID labels ranges from a few centimeters to several meters.
3. What is the difference between passive HF RFID smart labels and active RFID labels?
Passive HF RFID smart labels do not require a built-in power supply and communicate with readers through high-frequency electromagnetic waves; active RFID labels require built-in battery power and actively send out signals to communicate with readers. Therefore, active RFID labels have a longer read range but are also more expensive.
