@AdolfoZamora I would think of this as less of an edge device problem and mostly just a problem for how to interface between a node-red service and your tulip instance. Node-red just happens to be running on an edge device.
As of right now I do not believe that external services can write images to Tulip, unless I have missed this feature release. There is an old thread here where @youri.regnaud was asking. Here is the same thread for files and I assume the same answer. I would not recommend the solution given there as it would require exposing your files to the public internet.
I would recommend that you set up node-red to save the image or file to a network drive location, then send this file path to a tulip table. This way anyone on your network will be able to open the image or file from Tulip. There are some other advantages to this approach, however, the main con is that you will not be able to view the files directly in Tulip. Only links. For this use case it does not seem so bad.