I am scanning from a barcode reader but it shows every thing like this the string like this when it scans
L008EtZmqQ41daYYVhz000007IU7I#
L00A3RZmqRKOMmp13hy000007IU7I#
But when I use their software the output will be like this which is the actual value which I need it
07117340277500r
Bottom is the barcode image which I scans, Can anyone tell me what kind of the barcode type is this or any other way to decrypt the above mentioned codes into the actual value it would be great help
Looks like its a Code 39 barcode, look if there's some library or something to decode it.
Source: https://barcode-labels.com/getting-started/barcodes/types/
Related
Really hope that somebody will be able to help with this as I'm near losing my mind trying to understand why this happens.
I'm getting different results when scanning the same value in a Code 39 barcode using a regular USB barcode scanner and using my phone camera.
When scanning the value of 482168 using the barcode scanner, I get a value of 142673096 pasted into notepad;
When scanning the value of 482172 using the barcode scanner, I get a value of 142673122 pasted into notepad;
Values 482169 and 482171 are pasted correctly.
I thought initially that the problem was with the app that generates these barcodes, however, the same is happening when these are generated here https://barcode.tec-it.com/en/Code39FullASCII?data=482168
I thought that the length and width of the barcode may have been the problem, but adjusting them did not have any effect.
Has anyone ever stumbled upon anything similar and could suggest why these would be read and encoded differently?
I found this problem to be really interesting, so I compared the various barcode types to see what could be causing the scanner to mis-identify the barcodes. It turns out that Italian Pharmacode (also known as Code 32) is an exact match. Code32 is actually code39 using a compression scheme.
Here is 482168 in code39:
And 142673096 in code32:
It looks like your scanner is prioritizing code32 over code39. So you just need to disable code32 in your scanner.
Working on a Point of Sale system and trying to understand how to convert a smaller barcode to its longer registered one:
Example is for Coca-Cola Classic, 20 Oz. Bottle whose barcode shows as 04904403 and getting it to its correct UPC 049000000443 (https://www.upcitemdb.com/upc/49000000443)
That is the UPC-E code. You are looking to convert UPC-E code to UPC-A.
See more about Universal Product codes here: https://en.wikipedia.org/wiki/Universal_Product_Code
You can also look at this already answered question: How to convert a UPC-E barcode to a UPC-A barcode?
You might also want to look at this website: https://www.taltech.com/barcodesoftware/symbologies/upc
I know this might be rather a simple issue to ask for and we can also set the barcode format to be scanned by Zxing, like this:
(1)intent.putExtra("SCAN_MODE", "QR_CODE_MODE"); //or any other format
if we do this:
(2)intent.putExtra("SCAN_MODE", "SCAN_MODE"); //for all modes`
While doing the #2 mentioned right above this line, the scanner sometimes seems to scan part of the barcode and picks up wrong information. For example if I try to simply scan a UPC barcode, 98% of the times it works beautifully, but sometimes it just returns me a wrong barcode. I think I know whats happening here, I have an idea up in my head, but what is the exact technical explanation for this? (Anyone familiar with barcodes can help) Thanks in advance guys.
SCAN_MODE is not a valid value. It is ignored and you are scanning for all formats.
It is not reading the wrong information from a barcode; it is finding a 'phantom' barcode among all those white and black lines, of another format. The usual culprit is UPC-E, which is the easiest to accidentally see.
This is why it is far better to restrict the scan to the format you are interested in with a correct value of SCAN_MODE.
Are there any good validation tools for Intel hex files. Im looking for something that will validate checksums, as well as being able to identify and extract things like start address records?
This one is tricky... Well in any case I'm sorry to say this but the best way to do it is to use a HEX editor and cross reference with things you know exists in the start or end address. So in other words the best way is to do it manually by hand.
UPDATE
I may have something that you would find interesting http://en.wikipedia.org/wiki/Intel_HEX. At the bottom of the page is exactly what I believe you are looking for but I stay by my standpoint that validating it by hand is still the best.
You can use the following .NET library: IntelHexFormatReader for this.
(Disclaimer: I wrote the library).
Validating a single line in the HEX file could look like this:
string hexRecordLine = ":100130003F0156702B5E712B722B732146013421C7";
IntelHexRecord record = HexFileLineParser.ParseLine(hexRecordLine);
Console.WriteLine(record.ByteCount);
Console.WriteLine(record.Address.ToString("X4"));
Console.WriteLine(record.RecordType.ToString());
Console.WriteLine(record.Bytes[5]);
Console.WriteLine(record.Bytes[9]);
Console.WriteLine(record.CheckSum);
Resulting in the following output:
16
0130
Data
94
43
199
The tools does exhaustive validation (check the unit tests in order to get an idea of what validations are in place) and also allows you to return a full "memory representation" for a full Intel Hex file.
I have two barcodes that I am working with. They are clearly different, but both scan as code 128. One is weird and one is normal. I have tried to reprint the data for the barcode in every way I can think of to I can see what subset (A, B or C) is being used.
For the normal one I know it is A for the first 10 chars then it changes the encoding to B.
I cannot seem to find out how to see what the encoding is on the other (weird) one.
I am using a symbol scanner. (I turned on the prefix char but that only told me D (Code 128)
Is there any tool to allow me to dig into the barcode symbologies?
I know very little about barcodes and zero about non-european ones, but for weird implementations of Code 128, there is also GS1-128.
This online barcode generator looks quite nice and can generate a lot of formats you might want to check against.
Chiming in late here, but the ZXing library (I'm a developer) reads Code 128. You could have it scan the barcode while you attach a debugger to the code. It would show you exactly what's happening, step by step, in the decoding, including subset changes.
I know the problem is fixed. But here's some more resource in case someone's in need :)
Like Pekka mentioned, a Code 128 have subsets like Code 128A, Code 128B, Code 128C and GS1-128(UCC/EAN-128). Here is more information on Code 128 barcode, with encoding pattern illustration.
Thanks for those that answered and commented.
Turns out the company that made our barcodes had a printing error. That caused the barcode to look different.
How it ever successfully decoded I do not know. Anyway. I am going to award the question to Pekka because he gave me a workable solution.