User Manual

UHF Integrated RFID Reader Manual Guangdong Sygole Intelligent Technology Co.,Ltd
9
range of the reader through metal reflection; it may also be that the
electromagnetic wave signal is interfered by other signals in the same frequency
band to reduce the reading range of the reader.
Due to these electromagnetic characteristics,it is extremely difficult to determine
the propagation path of the signal and its field strength when the reader is in a
multiple reflection environment.
In order to reduce the influence of reflection and interference on the
identification tag, it is recommended to appropriately reduce the transmit power
of the reader so that it can properly identify the tag.
In addition, when the ground is poor and the reader is installed on the metal, it may
affect the performance of the reader. Therefore, pay attention to the following points
when installing the reader in the metal environment:
Embedded metal mounting——Reserved buffer (buffer can add non-anti-metal
media)
Buffer——Refers to the distance from the reader to the metal surface
1. The buffer is 0cm, that is, when directly mounted on the metal surface, the read/write
distance of the reader will be reduced by at least 10%; the specific data is related to the
metal material, size, thickness, etc.;
2. When the buffer is ≥20mm, the performance of the reader is close to that of the non-
metal plane; It is recommended to design the buffer to be larger than 20mm during
installation.
Fig 3.4.1 Nut type reader metal environment installation
If the reader housing is made of metal, it is recommended to use a plastic bracket when
the ground is not good.
Embedded metal mounting——Reserve a free area that is large enough.
Free zone——Refers to the metal blank area around the reader when the reader
is embedded in the metal installation.
1. When A = 0cm, that is, when the reader is installed without a reserved free
area, the read/write distance of the reader will be seriously reduced.This
installation method is not recommended;
2. When A = 10cm, the actual reading and writing distance will be reduced by
10%; the specific data is subject to the actual application test;
In order to meet the requirements of reading and writing distance, it is necessary
to reserve enough free zone in the actual application (the recommended value
of A is not less than half of the length and width of the reader);