影响UHF RFID性能的变量

文章出处：深圳市铨顺宏科技有限公司网责任编辑：铨顺宏作者：人气：-发表时间：2020-07-10 16:52:00【大中小】

Reader performance may be affected by the following variables, depending on the site where your Reader is being deploy

RFID读写器性能可能受以下变量的影响，具体取决于部署读写器的站点

Reader performance may be affected by the following environmental conditions:

一、RFID读写器性能可能受以下环境条件的影响

1、 Metal surfaces such as desks, filing cabinets, bookshelves, and wastebaskets may enhance or degrade Reader performance.

金属表面，如桌子、文件柜、书架和废纸篓可能会提高或降低读写器性能

2、 Antennas should be mounted far away from metal surfaces that may adversely affect the system performance.

RFID天线应安装在远离可能产生不利影响的金属表面，而影响系统性能。

3、 Devices that operate at 900 MHz, such as cordless phones and wireless LANs, can degrade Reader performance.

The Reader may also adversely affect the performance of these 900 MHz devices. Moving machinery can interfere the Reader performance. Test

Reader performance with moving machinery turned off.

工作频率为900 MHz的设备，如无绳电话和无线局域网，会降低和干扰读写器性能。

读写器也可能影响这些900兆赫设备的性能。

测试读写器时闭移动设备。

4、Fluorescent lighting fixtures are a source of strong electromagnetic interference and if

possible should be replaced. If fluorescent lights cannot be replaced, then keep the Reader cables and antennas away from them.

荧光照明灯具是强电磁干扰源，如果可能的话应该更换。如果荧光灯无法更换，则让读写器电缆和天线远离它们。

5、 Coaxial cables leading from the Reader to antennas can be a strong source ofelectromagnetic radiation. These cables should be laid flat and not coiled up.

从读写器到天线的同轴电缆可能是强电磁辐射。这些电缆应平放，不要卷起来。

Tag Considerations

二、标签注意事项

There are several variables associated with tags that can affect Reader performance:

与RFID标签相关的几个变量会影响读写器的性能

1、 Application Surface: Some materials, including metal and moisture, interfere with tag performance. Tags applied to items made from or containing these materials may not perform as expected.

应用表面：某些材料（包括金属和水分）会影响标签性能。应用于由这些材料制成或包含这些材料的物品上的标签可能无法达到预期的效果。

2、 Tag Orientation: Reader performance is affected by the orientation of the tag in the antenna field. If the antenna is circularly polarized, so it reads face-to but not edge-to.

标签方向：读写器性能受标签在天线场中的方向影响。如果天线是圆极化的，因此它是面对面而非边缘读取的。

3、 Tag Model: Many tag models are available. Each model has its own performance characteristics.

多种标签型号都是可用的。每个型号都有自己的性能特征。

Multiple Readers

三、多组读写器

The Reader adversely affect performance of 900 MHz devices. These devices also may degrade performance of the Reader.

读写器对900MHz设备的性能有不利影响。这些设备也可能降低读写器的性能。

1、 Antennas on other Readers operating in close proximity may interfere with one another, thus degrading performance of the Readers.

其他读写器上的天线在近距离工作时可能相互干扰，从而降低读写器的性能。

2、 Interference from other antennas may be eliminated or reduced by using either one or both of the following strategies:

四、可通过使用以下一种或两种策略来消除或减少来自其他天线的干扰

l Affected antennas may be synchronized by a separate user application using a time-multiplexing strategy.

受影响的天线可由单独的用户应用程序使用一种时间复用策略。

l Antenna power can be reduced by reconfiguring the RF Transmit Power setting for the Reader.

通过重新配置读写器的RF发射功率设置，可以降低天线功率。

声明：该文为铨顺宏原创，如想转载请联系我们，伪创必究。

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此文关键字：UHF rfid性能 rfid读写器 rfid距离 rfid圆极化天线