What are the factors that affect the read rate of UHF RFID Tag?
In addition to the above-mentioned reading distance and scanning direction, the read rate is also affected by many other factors. For example, the movement speed of goods in the entrance and exit, the communication speed between the tag and the reader, the material of pasted goods and the outer package, the way the goods are placed, the temperature and humidity of the environment, the height of the ceiling, and the influence between the reader and the reader, etc.
How to improve the read rate of RFID multi-tags?
To improve multi-tag read rate, we have to start from the reading principle.
In the multi-tag reading, the reader first query, and the tag will answer the reader's query successively. If in the reading process, there are more than one tag at the same time answer, the reader will query again, the query to the tag will be marked, make it "hibernate", and thus prevent being read again. Like this, read-write and label between the high-speed data exchange processing, this process is called congestion control and collision prevention.
Want to improve the reading rate of multiple tags, can expand the reading range and extend the reading time, also can increase the number of information exchange between the tag and the reader. In addition, caching communication methods between readers and tags can also improve the read rate.
However, in the real scenario, the situation is really too complicated. For example, sometimes the goods contain metal goods, which may lead to some angles can not read the tag. Therefore, the antenna direction, the goods placement position are very important factor, need reasonable design, try to let the reader in each angle can read the label.
