RFID electronic tags system is an important means of asset marking and logistics management. Electronic tags are widely used in logistics, industrial asset management and other fields.
Sometimes we need to attach RFID electronic tags to metal surfaces, such as shelves, or mechanical equipment. These shelves and equipment are made of metal. So can ordinary RFID tags be directly attached to metal for use?
Let’s look into a case first
En 2021, a Mexican customer came to us with RFIDHY and needed to manage his warehouse. He reported to us that there was a problem with the UHF tags provided to him by his supplier, and they were often missed. He wants to test our labels and replace their old labels if they don’t miss a read. Through the video connection, we noticed that there are many metal objects piled up in his warehouse. Through remote assistance, we helped customers adjust the placement of card readers and antennas and the orientation of items in the warehouse. After the Doron test, the problem of missing labels was solved. The customer was very happy and still proofed and tested our labels.
Después
After the original label is used up, the customer starts to use our label. He said that we are more professional and service is more in place, and he also believes in the quality of our products.
It is not difficult to see from this case that the metal environment will affect the reading of the label.
etiqueta anti-metal
Let’s do a test
This is an ordinary UHF tag with a regular Alien H4 chip. Now let’s stick this label on the carton to measure his reading distance. We can see that the maximum reading distance of this tag can reach 8 meters through our UHF handheld card reader.
Entonces, we take a label of the same specification and stick it on the metal shelf to try his reading distance again. We found this label to be completely unreadable with a card reader. It’s not that the reading distance is shortened, but that it can’t be read at all.
Why does this happen?
Passive RFID electronic tags are radio waves emitted by the receiving card machine. Convertir la energía de la onda de radio en electricidad, activando así el chip. Luego, la señal se transmite a través de la antena de la etiqueta y es recibida por la máquina de tarjetas.. De este modo, el proceso de lectura y escritura de la etiqueta por la máquina de tarjetas se puede completar.
sin embargo, ya que el metal absorbe las ondas de radio, es equivalente a blindar completamente la señal. Nuestras etiquetas pierden su fuente de energía y, naturalmente, no pueden funcionar correctamente..
Etiquetas electrónicas industriales ABS RFID
Etiquetas electrónicas RFID anti-metal específicas
Por lo tanto, to use RFID tags on metal surfaces, we need to use specific anti-metal tags.
Such as this flexible anti-metal tag. After we put this label on the metal shelf, let’s take a look at its reading distance. Obviamente, the reading distance can still reach more than 8 metros.
It is because of the special isolation material on the back of this anti-metal label. This material can completely isolate the interference of metal to the signal. Así, the signal of the card reader can directly act on the label itself. De este modo, el lector de tarjetas puede leer y escribir etiquetas sin problemas.
resistente a la luz
sin embargo, vale la pena señalar que esta etiqueta antimetal flexible no es resistente a la luz. Si necesita usarlo al aire libre durante mucho tiempo, necesita otra etiqueta resistente a los metales resistente a la luz. Como esta etiqueta de PCB. O personalice un estuche hermético a la luz para esta etiqueta flexible resistente al metal. De este modo, su vida útil puede extenderse.
RFIDHY tiene miles de etiquetas RFID. sus materiales, tamaños, y las antenas son todas diferentes para adaptarse a una variedad de escenarios.
Before deciding to use a certain RFID tag product, be sure to let professionals have an in-depth understanding of the product’s use scenario and environment. And do field tests.
Only in this way can the use of radio frequency tag products achieve the expected results and avoid risks.
Palabra clave: RFIDHY almacenamiento Etiqueta NFC Soluciones RFID
Texto: Li Shijun RFIDHY
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