RFID technology will burst into new vitality

Among the many application scenarios of RFID, warehousing and logistics, shoes and clothing, retail, and books are the areas that consume the most tags. However, in some scenarios with complex application conditions, tag reading is often affected by reasons such as occlusion, metal reflection, and liquid absorption. So, what are the technical parameters of RFID electronic tags?

1. The reading and writing speed of RFID electronic tag information

The reading and writing speed of RFID tags includes reading and writing speeds, and generally requires the reading and writing of tag information to be at the millisecond level.

2. The capacity of RFID electronic tag information

The capacity of RFID tag information refers to the amount of memory carried by the electronic tag for writing data. The capacity of RFID electronic tag information is related to whether the RFID electronic tag is "foreground" or "background". What is the "foreground" and "backstage" styles?

The "foreground" type RFID electronic tag means that in practical applications, sometimes it is not easy to connect to the database on site. When the memory capacity of the electronic tag is increased to several thousand to tens of thousands, it can be used independently, and there is no need to check the database information. Electronic tags. But when choosing this type of tag, you should pay attention. Generally speaking, the larger the memory, the longer the reading time. This kind of electronic tag should only be used when you need to know the detailed information of the item at that time.

The "background" electronic tag can be connected with the computer database by means of the network after the data is collected by the RFID Reader. Therefore, the memory of this type of RFID electronic tag is relatively small. If you need more detailed information about the item, you need to provide it through the background database.

3. Energy requirements for RFID electronic tag activation

When the RFID electronic tag enters the working area of the UHF reader, it is excited by the radio frequency signal sent by the reader, and the RFID tag enters the working state. The activation energy of the tag requires that the RFID electronic tag and the reader can provide sufficient radio frequency field strength for the electronic tag within a certain distance.

4. The transmission rate of RFID electronic tag information

The transmission rate of RFID electronic tag information mainly includes two aspects, one is the transmission rate of RFID electronic tag feedback data to the RFID reader, and the other is the rate of writing data from the RFID reader.

5. The reliability of RFID tags

The reliability of the RFID electronic tag is related to the working environment, size, material, quality of the electronic tag, and the distance between the tag and the RFID reader. For example, on a conveyor belt, when the RFID electronic tag is exposed and is read individually, the accuracy of the reading is close to 100%. However, many factors may reduce the reliability of RFID electronic tag reading and writing. The more electronic tags are read at the same time, the faster the RFID tag moves, and the more likely it is to misread or miss reading.

6. Package size of RFID tags

The packaging size of the RFID electronic tag mainly depends on the size of the antenna and the power supply situation. There are different requirements for the packaging size in different occasions. The small package size is at the millimeter level, and the large one is at the decimeter level. The size of the RFID tag is small, and its application range is wide; the design of the RFID tag is relatively large, which can increase the size of the antenna, so it can effectively improve the reading rate of the RFID tag.

7. Working frequency of RFID tags

The working frequency of the RFID electronic tag refers to the frequency used when the tag works, which can be low frequency, high frequency, ultra high frequency and microwave.

8. Alignment distance of RFID tags

The reading and writing distance of the RFID electronic tag refers to the working distance between the tag and the RFID reader. The reading and writing distance of RFID electronic tags is as short as millimeters, and as far as 20 meters or more. In addition, the read distance and write distance of most systems are different, and the write distance is about 40% to 80% of the read distance.