UHF RFID is generally used when you want to read a longer distance and a wider scanning range of radio waves. Therefore, in the field of logistics and supply chain, UHF RFID technology is selected all over the world. Therefore, the author will further elaborate on the problem of UHF RFID reading rate.

What are the factors that affect the UHF RFID reading rate?

In addition to the above-mentioned reading distance and scanning direction, the reading rate is also affected by many other factors. For example, the movement speed of goods at the entrance and exit, the communication speed between labels and readers, the material of pasted goods and outer packaging, the placement of goods, the temperature and humidity of the environment, the height of the ceiling, and the influence between readers and writers.

I believe that after reading the above description, you will realize that in the actual scenario application of RFID, it is actually very easy to be affected by the external environment, and these different environmental factors are intertwined with each other, which together constitute the key difficulties to be overcome in the implementation of RFID projects.

How to improve the reading rate of RFID multi tags?

If you want to improve the reading rate of multiple tags, you have to start from the reading principle. When reading multiple tags, the reader queries first, and the tag responds to the reader's query successively. If multiple tags answer at the same time during reading, the reader will query again, and the queried tags will be marked to "sleep", so as to prevent them from being read again. In this way, high-speed data exchange processing between readers and labels is called congestion control and anti-collision.

To improve the reading rate of multiple tags, you can expand the reading range and extend the reading time, and also increase the number of information exchanges between tags and readers. In addition, the high-speed communication method between reader and tag can also improve the reading rate.

However, in the real scene, the situation is too complicated. For example, sometimes there are metal goods in the goods, which may cause some angles to be unable to read the label. Therefore, the direction of the antenna and the placement of goods are very important factors, which need to be reasonably designed so that the reader and writer can read the label at all angles. Moreover, even if all kinds of work are done well, there may be other unexpected situations, such as the electronic label itself may be broken.