RFID tag maximum reading tag distance of 5 meters, maximum writing tag distance of 2 meters do not

The reading distance of the tag is 5 meters, that is, the distance between the tag and the antenna of the device is 5 meters. The device will be able to recognize the tag number.

Maximum Write Tag Distance: 2 meters That is, the tag itself has a certain writable space, and data can be written to the tag through the device. However, writing data cannot be operated over a long distance, and can only be written within a range of 2 meters.

The distance of 2 meters is determined by the performance of the device and the tag.

The energy required to read and write tags is different, so the reading distance and writing distance are different.

Antenna gain includes tag antenna gain and reader antenna gain.

In addition, the actual label reading distance is not the posture, all of which depend on the theoretical value, and have a great relationship with the actual environment.

Alas, there must be harm, what you are asking about is the distance, 2-8 meters, this distance is not easy to say, the distance of 2 meters can be satisfied, but the distance depends on the situation on the scene.

There are a lot of passive encapsulated stickers, wristbands, etc. to wear.

At present, there are some UHF applications for the inner collar of clothing, as well as wristbands, which seem to be at a distance of about 2,3 meters.

The radiation is relatively large and is not recommended for humans, especially infants.

The RFID experts of Jiurui Technology tell you that these applications are currently unrealistic in the real environment.

UHF is harmful to human health and is hardly used on people at present.

Passive electronic tag recognition of long-distance to ultra-high command side frequency tag Zen annihilation, different antennas and different scales of rubber reading distance is not the same, with one or two DBI antenna up to two more than two meters of identification distance, but the distance of writing cards will generally be much closer, the farthest three -5 meters.

Passive electronic tag recognition of long-distance UHF tags, different antennas and different tag reading distances are not the same, with 12dbi antenna up to the farthest identification distance of more than 25 meters, but the distance of writing cards will generally be much closer, the farthest 3-5 meters.

There are many types of RFID modules, according to the frequency of low-frequency, high-frequency, ultra-high frequency RFID modules, and there are different protocols, such as 14443A, 15693, 14443B, ISO18000-6B, ISO18000-6C protocol, etc., you can refer to Woji Electronic Technology, I hope to help you.

It is recommended to use a ready-made reader directly, such as YXU1861 with high cost performance, stable performance, adjustable distance from 0-6 meters, and RS232 485 Wiegand interface.

If you do it yourself, you can change to an antenna of the right size.

It's best to reply to the way you applied.

Is your transponder active or passive? If it is passive, the reading distance is 10 meters.

It mainly depends on your reality, and it is difficult to have a detailed answer to this. It's usually around cm.

Personally, I think that for your situation, the reading distance is related to the tag and has nothing to do with the reader.

The electronic transponder and the reader are matched, and the reliable reading distance is the shortest of the two. The label you mention can only read 10cm with the reader.

Is there a difference in the calculation method between low frequency, high frequency and ultra-high frequency, microwave? I don't know exactly what you're going to ask about this question. Can you write more details?