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影響UHF RFID性能的變量

文章出處：深圳市銓順宏科技有限公司網(wǎng)責(zé)任編輯：銓順宏作者：人氣：-發(fā)表時(shí)間：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讀寫(xiě)器性能可能受以下變量的影響，具體取決于部署讀寫(xiě)器的站點(diǎn)

Reader performance may be affected by the following environmental conditions:

一、RFID讀寫(xiě)器性能可能受以下環(huán)境條件的影響

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

金屬表面，如桌子、文件柜、書(shū)架和廢紙簍可能會(huì)提高或降低讀寫(xiě)器性能

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

RFID天線應(yīng)安裝在遠(yuǎn)離可能產(chǎn)生不利影響的金屬表面，而影響系統(tǒng)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.

工作頻率為900 MHz的設(shè)備，如無(wú)繩電話和無(wú)線局域網(wǎng)，會(huì)降低和干擾讀寫(xiě)器性能。

讀寫(xiě)器也可能影響這些900兆赫設(shè)備的性能。

測(cè)試讀寫(xiě)器時(shí)閉移動(dòng)設(shè)備。

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.

熒光照明燈具是強(qiáng)電磁干擾源，如果可能的話應(yīng)該更換。如果熒光燈無(wú)法更換，則讓讀寫(xiě)器電纜和天線遠(yuǎn)離它們。

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.

從讀寫(xiě)器到天線的同軸電纜可能是強(qiáng)電磁輻射。這些電纜應(yīng)平放，不要卷起來(lái)。

Tag Considerations

二、標(biāo)簽注意事項(xiàng)

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

與RFID標(biāo)簽相關(guān)的幾個(gè)變量會(huì)影響讀寫(xiě)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.

應(yīng)用表面：某些材料（包括金屬和水分）會(huì)影響標(biāo)簽性能。應(yīng)用于由這些材料制成或包含這些材料的物品上的標(biāo)簽可能無(wú)法達(dá)到預(yù)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.

標(biāo)簽方向：讀寫(xiě)器性能受標(biāo)簽在天線場(chǎng)中的方向影響。如果天線是圓極化的，因此它是面對(duì)面而非邊緣讀取的。

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

多種標(biāo)簽型號(hào)都是可用的。每個(gè)型號(hào)都有自己的性能特征。

Multiple Readers

三、多組讀寫(xiě)器

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

讀寫(xiě)器對(duì)900MHz設(shè)備的性能有不利影響。這些設(shè)備也可能降低讀寫(xiě)器的性能。

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

其他讀寫(xiě)器上的天線在近距離工作時(shí)可能相互干擾，從而降低讀寫(xiě)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、可通過(guò)使用以下一種或兩種策略來(lái)消除或減少來(lái)自其他天線的干擾

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

受影響的天線可由單獨(dú)的用戶應(yīng)用程序使用一種時(shí)間復(fù)用策略。

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

通過(guò)重新配置讀寫(xiě)器的RF發(fā)射功率設(shè)置，可以降低天線功率。

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此文關(guān)鍵字：UHF rfid性能 rfid讀寫(xiě)器 rfid距離 rfid圓極化天線