Can we set EPC of the UHF tag from E282XXXX..., to some URL link? Like https://www.google.com??
Is this possible??
I know that we can edit NFC tag by giving url in the NDEF data with NXP tag writer app.
I wanted to do the same with UHF tags as well.
UHF tag details: International Standards
EPC Class 1 Gen 2
ISO 18000-6CTg EPC Class 1 Gen 2
ISO 18000-6C
Operating Frequency
860 - 960 MHz
Integrated Circuit (IC)
NXP UCODE G2iL
Since NXP UCODE G2iL you want to use does not have the area (User Memory) necessary to describe the URL.
2.1.1 Memory
- 128-bit of EPC memory
- 64-bit Tag IDentifier (TID) including 32-bit factory locked unique serial number
- 32-bit kill password to permanently disable the tag
- 32-bit access password to allow a transition into the secured state
If you want to include URL in RFID tag data, please use tag with user memory area.
Since "GS1 EPC Tag Data Standard 1.9", the format of the user memory area is specified, and if you use the AI 8200 you can describe the URL of up to 70 characters.
However, this URL is related to the corresponding product, and should not describe any URL not related to the product.
Let's use AI 91 to AI 99 etc. if you write any URL not related to product.
For example, you can check URL data encoding/decoding on this EPC User Memory Encoder/Decoder.
If you select "AI 8200 - PRODUCT URL" in "Add a data element" of "Input Data" and enter the URL in the field, the encoded data in hexadecimal is displayed below it.
AI is an acronym for Application Identifier and is specified here GS1 General Specifications.
Related
We are developing an application using chainway C72 device (Android 11). We have to read multiple tags simultaneously and for each tag, we have to get EPC, Tag ID and one particular word from EPC (64 to 1 word - DataWord). We managed to get all data but tagID, EPC and the data word are not getting properly when multiple tags are in range. It is giving epc of one tag, tag id of another one and Data word of another one tag. Is there any method to read all three parameters together for a particular tag?
We are using the UHFReadData function to get the result.
I have to integrate GA in project which uses a multi parameter search which should be tracked in detail.
Imagine a web shop selling computers with the following choices (some of them are even multi-selects):
RAM size
Type of computer (e.g. laptop)
Color
...
Using the Site-Search option in GA in conjunction with virtual pageviews it caught my eye that there is a restriction, that you can only define 5 parameters. This seems to me being a standard scenario but google search doesn't help me finding an answer.
How would you implement/configure a multi search scenario like this in GA?
You could set up a hit-scoped custom dimension for each parameter (RAM, Type, Colour etc.). Then, when the search results are shown, you would push something like the following to the Google Tag Manager dataLayer:
dataLayer.push({'ram_size' : '8gb', 'type' : 'Laptop', 'Colour' : 'Grey'});
Then in GTM, you would need to set up a variable for each one of these and pass those variables to the GA page view tag in the custom dimensions section of the tag configuration.
I am using windows azure notification hub, and i got this message:
Tag expression can not contain more than 6 operands
So it restricted me to only 6 tags per request , and I need to send to more than 6 tags .
What can I do?
Tag expression was designed for audience targeting purposes. Let's consider simple example:
We have food related application, each device creates registration with tags. One tag for city (NY, Washington, Seattle,..) and several tags for preferred foods (steaks, cookies, burgers,..).
Now new bakery is opened in NY and we want to send an advertising to all cookie-lovers in the NY. So we do just one send call using expression "(NY && cookies)" and all those devices will receive the advertising even if there are million of them.
Here is official doc.
Looks like 6 tags per expression can cover most of such scenarios. There is also option to use up to 20 tags for OR-only expression like "(A || B || C ...)"
In your case I would suggest to redefine tags to allow group of devices to be covered with tag or tag expression. It would allow to use broadcast capabilities of the notification hub.
Otherwise if your tag is something unique like userId or email then you will have to perform multiple calls to reach multiple devices. That scenario is OK as well since NH is scalable and high-available service.
From what I can see in the Google Wallet Objects API documentation, there are two loyalty templates from which to choose. One has the barcode section, and the other has an image instead. Is there any way to configure or otherwise create a third option, where a text string could be displayed in place of either a barcode or image?
We currently provide two templates, loyalty1 and loyalty2.
You can use loyalty1 template that provides a barcode. For the barcode type, select textOnly. For more information on the types of barcode provided please look at the API Reference
https://developers.google.com/commerce/wallet/objects/reference/v1/loyaltyobject
I have the following situation:
The pictures that my app stores on Google Drive have GPS position written in the EXIF data. See here.
I'd like to use the position later for additional indexing. Maybe even to get a street address from one of the friendly Google APIs. But it looks to me that there is no obvious integration of the GPS data with Google indexing. If I leave them in the EXIF header, I can't even get to them using Drive API.
So, my only option seems to be to pull the JPEG file, parse EXIF myself, call Google Maps API to get the street address (didn't try this one yet, just assuming there is such a method), and push the address data back to my 'meta', 'description' or 'IndexableText'. Or I can push the GPS coordinates directly to my meta data when storing the JPEG (2 signed floats only, afterall). This effectively duplicates the EXIF info (and I love duplicate data).
So my question is: Am I missing something obvious? Are there any plans to do this "EXIF GPS data" -> "street address" on Google Drive level? Is it already there? Should I do it myself or wait?
Thanks, sean
Google Drive SDK returns an imageMediaMetadata field for image files that contains basic properties of the image and EXIF information. At the moment, Drive doesn't reverse geocode the geo-coordinates on the EXIF metadata to provide street addresses.
Depending on your scale and performance requirements, you either can extract them by yourself or use image metadata returned by the API and then reverse geocode with Google Maps APIs. You can use custom file properties to append an address. Properties are query-able, you can build a search feature on top of them. A sample property entity looks like what's below. Read documentation for more details.
{
"key": "address",
"value": "City of Westminster, WC2N 5DN, United Kingdom",
"visibility": "PRIVATE"
}