blocks|key|209275|text|你可以使用像this这样的Arduino板劫持你的Android音频端口。然后，您有两个选择(就我而言)：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|209276|1)再买一台Arduino+Shield+that+supports+RFID。到目前为止，我还没有看到支持UHF的。|209277|2)尝试将你的Arduino劫持与USB+RFID+reader连接起来，并构建一些嵌入式硬件套件。|209278|现在，我正在使用第二种选择，但是使用iPhone。|209279|entityMap|0|LINK|mutability|MUTABLE|url|https://www.sparkfun.com/products/10331|1|https://www.sparkfun.com/products/10406|2|https://rads.stackoverflow.com/amzn/click/com/B0050MBFE8^0|6|4|0|0|6|X|1|0|H|F|2|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@$A|W|B|X|1|Y]]|C|$]]|$1|D|3|E|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]]|C|$]]|$1|F|3|G|5|6|7|13|8|@]|9|@$A|14|B|15|1|16]]|C|$]]|$1|H|3|I|5|6|7|17|8|@]|9|@]|C|$]]|$1|J|3|-4|5|6|7|18|8|@]|9|@]|C|$]]]|K|$L|$5|M|N|O|C|$P|Q]]|R|$5|M|N|O|C|$P|S]]|T|$5|M|N|O|C|$P|U]]]]

You can hijack your Android audio port using an Arduino board like <a href="https://www.sparkfun.com/products/10331" rel="nofollow noreferrer">this</a>. Then, you have two options (as far as I'm concerned):

1) Buy another <a href="https://www.sparkfun.com/products/10406" rel="nofollow noreferrer">Arduino Shield that supports RFID</a>. I haven't seen one that supports UHF so far.

2) Try to connect your Arduino hijack with a <a href="https://rads.stackoverflow.com/amzn/click/com/B0050MBFE8" rel="nofollow noreferrer" rel="nofollow noreferrer">USB RFID reader</a> and build some embedded hardware kit.

Right now, I'm working in the second option but with iPhone.

blocks|key|3061579|text|一家名为U+Grok+It的公司提供了适用于安卓和iOS的超高频RFID阅读器选项。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3061580|它只是UHF，它是“非NFC功能的Android"，如果你是这个意思的话。我很抱歉，如果你指的是没有内置NFC阅读器的Android设备的NFC阅读器。|3061581|他们的阅读器的范围可达7米(约21英尺)。它通过音频端口连接，而不是蓝牙，这具有即时、安全、耗电少的优势。|3061582|他们有一个适用于Android、iOS、Cordova和Xamarin的免费原生SDK，还有一个Android键盘楔子。|3061583|entityMap|0|LINK|mutability|MUTABLE|url|https://www.ugrokit.com/^0|4|9|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]]|C|$]]|$1|D|3|E|5|6|7|V|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@]|C|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|C|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|K|$L|$5|M|N|O|C|$P|Q]]]]

A UHF RFID reader option for both Android and iOS is available from a company called <a href="https://www.ugrokit.com" rel="nofollow">U Grok It</a>. 

It is just UHF, which is "non-NFC enabled Android", if that's what you meant. My apologies if you meant an NFC reader for Android devices that don't have an NFC reader built-in.

Their reader has a range up to 7 meters (~21 feet). It connects via the audio port, not bluetooth, which has the advantage of pairing instantly, securely, and with way less of a power draw.

They have a free native SDK for Android, iOS, Cordova, and Xamarin, as well as an Android keyboard wedge.

blocks|key|2848694|text|支持NFC的电话只能读取NFC和无源高频RFID+(HF-RFID)。这些必须在非常近的范围内读取，通常是几厘米。对于更远距离或任何其他类型的RFID/有源RFID，您必须使用外部读卡器来处理移动设备。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2848695|你只需在谷歌上搜索一下，就可以从许多制造商那里获得一些像样的读者。有很多适用于所有设备类型的插件。|2848696|我处理了很多HID阅读器，能够近距离扫描启用HID的身份证，以及来自智能手机和智能卡的NFC。我使用SerialIO徽章阅读器，我将解密配置文件加载到该阅读器上，它允许我构建的应用程序读取和使用我们的安全公司卡。他们是伟大的大规模可靠的蓝牙扫描。因为它们是蓝牙设备，所以适用于PC/Android/iOS/Linux。唯一的问题是，HID阅读器非常昂贵，而且是为企业使用的。我们的价格约为每台400美元，但同样，他们写着HID，SmartCards，NFC和RFID。|2848697|如果这是一个个人项目，我建议只使用电话和购买一些高频-RFID标签。标签制造商应该有一个SDK，您可以使用它来连接和管理标签。你也可以只使用androids+NFC文档来开始https://developer.android.com/guide/topics/connectivity/nfc/。过去8年的大多数安卓手机都有NFC功能，只有iPhone+6和更新的苹果手机才有NFC功能，但只有iOS+11和更新版本才能满足你的需求。|offset|length|2848698|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.android.com/guide/topics/connectivity/nfc/^0|0|0|0|2F|1O|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@$H|V|I|W|1|X]]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

NFC enabled phones can ONLY read NFC and passive high frequency RFID (HF-RFID). These must be read at an extremely close range, typically a few centimeters. For longer range or any other type of RFID/active RFID, you must use an external reader for handling them with mobile devices.

You can get some decent readers from a lot of manufacturers by simply searching on google. There are a lot of plug in ones for all device types.

I deal a lot with HID readers capable of close proximity scans of HID enabled ID cards as well as NFC from smart phones and smart cards. I use SerialIO badge readers that I load a decryption profile onto that allows our secure company cards to be read and utilized by an application I built. They are great for large scale reliable bluetooth scanning. Because they are bluetooth, they work for PC/Android/iOS/Linux. The only problem is, HID readers are very expensive and are meant for enterprise use. Ours cost about $400 each, but again, they read HID, SmartCards, NFC, and RFID.

If this is a personal project, I suggest just using the phone and purchasing some HF-RFID tags. The tag manufacturer should have an SDK for you to use to connect to 
 and manage the tags. You can also just use androids NFC docs to get started <a href="https://developer.android.com/guide/topics/connectivity/nfc/" rel="noreferrer">https://developer.android.com/guide/topics/connectivity/nfc/</a>. Most android phones from the last 8 years have NFC, only iPhone 6 and newer apple phones have NFC, but only iOS 11 and newer will work for what you want to do.

blocks|key|2848756|text|首先，要理解RFID是一个非常通用的术语。NFC是RFID技术的一个子集。NFC用于代理卡、信用卡、即插即用支付系统。你的手机可以读取和模拟NFC+(Apple+pay，Google+pay等)，如果它们支持NFC的话。NFC是非常短的距离和低功耗-这就是为什么你会看到tap和go类型的使用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2848757|更常见的RFID是你在各处看到的标签。它们有各种各样的风格、用途和使用频率。|2848758|高频标签是他们用来“切碎”动物的东西--牛、狗、猫。阅读范围约为12英寸，需要外部天线供电，天线越大，需要的功率就越大，可以阅读的距离就越远。|2848759|UFH标签看起来与HF标签相似，但读取范围为几英尺。|2848760|此外，高频标签有单读和多读两种。UFH是排除性的多读。|2848761|多读意味着当阅读器处于活动状态时，您可以在10秒内读取约1700个标签。|2848762|但这是天线大小的函数，也是你可以通过阅读器的功率的函数。|2848763|至于关于Android和RFID的直接问题--最好的方法是获得一个通过蓝牙连接到您的移动设备的外部手持阅读器。蓝牙库适用于所有移动设备-+Android、Apple、Windows。从那时起，这只是一个关于如何打开读卡器的套接字以及如何解码串行信息的制造商文档问题。|2848764|TSL系列阅读器非常流行，因为您不必处理读取字节和其他制造商所做的所有低级串行jazz。它们有一组很好的命令，很容易用来控制阅读器。|2848765|其他制造商是基本的，因为您打开串行插座，然后读取输出，就像您在PuTTY等终端应用程序中看到的那样。|2848766|entityMap^0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|X|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|Z|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|10|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|11|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|12|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|13|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|14|8|@]|9|@]|A|$]]|$1|T|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|U|$]]

First is understanding that RFID is very generic term. NFC is subset of RFID technology. NFC is used for prox card, credit cards, tap and go payment system. Your phones can read and emulate NFC (Apple pay, Google pay, etc.), if they support NFC. NFC is very short distance and low power - which is why you see tap and go type usage.

The more common RFID are the tags you see here and there. They come in a wide ranges of styles, uses and frequency.

HF - high frequency tags are what they use for "chipping" animals - cattle, dogs, cats. Read range is about 12 inches and requires an external antenna that is powered the bigger the antenna the more power it needs and the further it can read.

UFH tags look similar to HF tags but have a read range of several feet.

Also HF tags come single read and multi read.
UFH is exclusviely multi read.

Mutiread means when a reader is active, you can litterally read about 1700 tags in under 10 seconds.

But this is a function of the size of the antenna and how much power you can push through the reader.

As to the direct question about Android and RFID - the best way to go is to get an external handheld reader that connects to your mobile device via Bluetooth.
Bluetooth libraries exist for all mobile devices - Android, Apple, Windows.
From there its just a matter of the manufacturer documentation about how to open a socket to the reader and how to decode the serial information.

The TSL line of readers is very popular because you don't have to deal with reading bytes and all that low level serial jazz that other manufactures do. They have a nice set of commands that are easy to use to control the reader.

Other manufactures are basic in that you open a serial socket and then read the output like you would see in terminal app like PuTTY.

blocks|key|207258|text|我最近做了一个读取RFID标签的项目。该项目使用了来自Zebra+(我们使用的是RFD8500+)&+TSL等制造商的设备。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|207259|更多的设备来自摩托罗拉和其他供应商！|207260|我们必须使用制造商提供的本地SDK+api，它的工作原理是通过手机的蓝牙配对设备，因此两个设备之间的数据传输发生了！编程基于订阅模式，其中扫描应由设备触发器(硬件触发器)或软触发器(从应用程序)读取。|207261|标签读取器给出了tagId+&+RSSI，这是与RFID标签之间的距离系数！|207262|这是示例应用程序：|207263|我们把所有的设备都与我们的Android/iOS手机配对：|207264|​|207265|📷|atomic|207266|207267|207268|207269|207270|207271|207272|207273|207274|207275|207276|entityMap|0|LINK|mutability|MUTABLE|url|https://www.zebra.com/us/en/support-downloads/rfid/rfid-handhelds/rfd-8500.html|1|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/4417157b42589098aed4446c5b724bae.png|imageAlt|2|https://ask.qcloudimg.com/http-save/yehe-900000/b663620ed8446c4a2d6912c23e207959.png|3|https://ask.qcloudimg.com/http-save/yehe-900000/cba4b0b7b8ab81f77e11b7a86e933fd7.png|4|https://ask.qcloudimg.com/http-save/yehe-900000/fd2817e62c9bf016b4184e06e9e386c7.png^0|14|7|0|0|0|0|0|0|0|0|0|1|1|0|0|0|0|1|2|0|0|0|0|1|3|0|0|0|0|1|4|0|0^^$0|@$1|2|3|4|5|6|7|1M|8|@]|9|@$A|1N|B|1O|1|1P]]|C|$]]|$1|D|3|E|5|6|7|1Q|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|1R|8|@]|9|@]|C|$]]|$1|H|3|I|5|6|7|1S|8|@]|9|@]|C|$]]|$1|J|3|K|5|6|7|1T|8|@]|9|@]|C|$]]|$1|L|3|M|5|6|7|1U|8|@]|9|@]|C|$]]|$1|N|3|O|5|6|7|1V|8|@]|9|@]|C|$]]|$1|P|3|Q|5|R|7|1W|8|@]|9|@$A|1X|B|1Y|1|1Z]]|C|$]]|$1|S|3|O|5|6|7|20|8|@]|9|@]|C|$]]|$1|T|3|O|5|6|7|21|8|@]|9|@]|C|$]]|$1|U|3|Q|5|R|7|22|8|@]|9|@$A|23|B|24|1|25]]|C|$]]|$1|V|3|O|5|6|7|26|8|@]|9|@]|C|$]]|$1|W|3|O|5|6|7|27|8|@]|9|@]|C|$]]|$1|X|3|Q|5|R|7|28|8|@]|9|@$A|29|B|2A|1|2B]]|C|$]]|$1|Y|3|O|5|6|7|2C|8|@]|9|@]|C|$]]|$1|Z|3|O|5|6|7|2D|8|@]|9|@]|C|$]]|$1|10|3|Q|5|R|7|2E|8|@]|9|@$A|2F|B|2G|1|2H]]|C|$]]|$1|11|3|O|5|6|7|2I|8|@]|9|@]|C|$]]|$1|12|3|-4|5|6|7|2J|8|@]|9|@]|C|$]]]|13|$14|$5|15|16|17|C|$18|19]]|1A|$5|1B|16|1C|C|$1D|1E|1F|-4]]|1G|$5|1B|16|1C|C|$1D|1H|1F|-4]]|1I|$5|1B|16|1C|C|$1D|1J|1F|-4]]|1K|$5|1B|16|1C|C|$1D|1L|1F|-4]]]]

I recently worked on a project to read the RFID tags.
The project used the Devices from manufacturers like Zebra (we were using <a href="https://www.zebra.com/us/en/support-downloads/rfid/rfid-handhelds/rfd-8500.html" rel="nofollow noreferrer">RFD8500</a> ) &amp; TSL.

More devices are from Motorola &amp; other vendors as well!

We have to use the native SDK api's provided by the manufacturer, how it works is by pairing the device by the Bluetooth of the phones and so the data transfer between both devices take place! The programming is based on subscribe pattern where the scan should be read by the device trigger(hardware trigger) or soft trigger (from the application).

The Tag read gives us the tagId &amp; the RSSI which is the distance factor from the RFID tags!

This is the sample app:

We get all the device paired to our Android/iOS phones :

<img src="https://i.stack.imgur.com/Hv0J6.png" alt="get device list">

<img src="https://i.stack.imgur.com/CnBwW.png" alt="connect">

<img src="https://i.stack.imgur.com/UjsGk.png" alt="connected">

<img src="https://i.stack.imgur.com/NtBL1.png" alt="Scan">

blocks|key|3061979|text|您可以使用一个简单、低成本的USB端口读取器直接连接到您的Android设备；它有一个实用的应用程序和一个可用于应用程序开发的SDK：https://www.atlasrfidstore.com/sls-rfid-smartmicro-android-micro-usb-reader/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3061980|entityMap|0|LINK|mutability|MUTABLE|url|https://www.atlasrfidstore.com/sls-rfid-smartmicro-android-micro-usb-reader/^0|1V|24|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You can use a simple, low-cost USB port reader like this test connects directly to your Android device; it has a utility app and an SDK you can use for app development:
<a href="https://www.atlasrfidstore.com/sls-rfid-smartmicro-android-micro-usb-reader/" rel="nofollow noreferrer">https://www.atlasrfidstore.com/sls-rfid-smartmicro-android-micro-usb-reader/</a>

blocks|key|209501|text|NFC-enable能够读取NFC标签，如果android智能手机带有我们的NFC，你必须为你的手机购买一个小型的NFC阅读器。它是rfid+reader+for+mobile+phones。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|209502|entityMap|0|LINK|mutability|MUTABLE|url|https://www.dorfidreader.com/rfid-readers/nfc-reader/^0|1U|T|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

The NFC-enable able to read a NFC tag ,if the android smartphone with our NFC , you have to buy a small NFC reader for your phone. it is <a href="https://www.dorfidreader.com/rfid-readers/nfc-reader/" rel="nofollow noreferrer">rfid reader for mobile phones</a>.

I did enough research on reading RFID tags using Android phones(smart phones). 

My understanding of this is that for NFC-enabled smart phones (Nexus S) it is possible to read RFID tags, but there are restrictions.

For non-NFC-enabled Androids we need a RFID reader to which we can communicate from Android using Bluetooth.

My question is:

<ol>
<li>What are the SDK which we use for reading RFID tag from Android Phone(NFC enabled)?</li>
<li>If I have to read using Non NFC enabled phone, is there any standard reader available who provides SDK for development purpose?</li>
</ol>

Reading RFID with Android phones

软件开发

Android

Windows

Xamarin

Cordova

Linux

我对使用Android手机(智能手机)读取RFID标签做了足够的研究。我对此的理解是，对于支持NFC的智能手机(Nexus )，可以读取RFID标签，但有限制。对于没有NFC功能的Android，我们需要一个RFID阅读器，我们可以使用蓝牙从Android与其进行通信。我的问题是：我们用来从安卓手机(支持近场通信)读取...

问用Android手机读取RFID
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问用Android手机读取RFIDEN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问用Android手机读取RFID
EN