rfid electronic tag is very common in our lives. RFID is similar to barcode scanning, but RFID uses a special RFID reader and rfid electronic tag that can be attached to the target. The frequency signal is used to transmit information from the rfid electronic tag to RFID reader. If the rfid electronic tag fails, scanning and application will not be possible. Under what circumstances will the rfid electronic tag fail?
There are three cases of RFID tag failure:
The first case: the label is damaged
rfid electronic tag has a chip, if the chip is pressed by external force or high static electricity may fail. Antenna, if the RFID signal receives the antenna damage will also cause failure. Therefore, the rfid electronic tag cannot be damaged or torn off by pressure. Generally, rfid electronic tags with high requirements will be packed in plastic cards to avoid damage from external forces.
The second case: the label is not damaged
rfid electronic tag cannot penetrate metal, so metal can be shielded. It is difficult to penetrate water, water can absorb waves, and the sensing distance is limited. When covered, RFID can penetrate non-metal or non-transparent materials such as paper, wood, and plastic, and can perform penetrating communication. The barcode scanner must be at a close distance and no object blocking the situation before it can read the barcode.
The third case: the reading distance is too far
In the actual high-frequency rfid electronic tag application, we need to focus on the placement of the 13.56MHz rfid electronic tag. Due to the large size of the tag and the limited space allowed, the rfid electronic tag needs to be directly attached to the metal. On the surface or close to metal devices, such as 13.56MHz RFID smart tags used in mobile phones, due to space issues, they are often directly integrated on the aluminum alloy stamping shell of the battery. In this way, in the identification process, rfid electronic tag It is susceptible to the eddy current interference of the aluminum alloy metal stamping shell of the battery, which causes the actual effective reading distance of the RFID tag to be greatly shortened or no response at all, and the reading fails completely. Practice has proved that this type of interference problem occurs frequently, and we need to take certain measures to prevent it.
Under what circumstances will rfid electronic tag fail? Just share it here. When we use rfid electronic tag, we must avoid the above situations. Only in this way can we try to avoid rfid electronic tag failure.