Search found 21 matches

by Stub
Mon Oct 26, 2020 2:57 pm
Forum: General Topics
Topic: Looking for Contractor/Consultant
Replies: 3
Views: 84

Re: Looking for Contractor/Consultant

Hi,

I've replied using the mail function.
by Stub
Mon Oct 26, 2020 12:10 pm
Forum: General Topics
Topic: Looking for Contractor/Consultant
Replies: 3
Views: 84

Re: Looking for Contractor/Consultant

Hi,

Can you describe a little more about what you need from the webserver? (I know only theory regarding NNs and not the modern tools, but that can be overcome. Are the two projects related or separate?)
by Stub
Wed Oct 21, 2020 6:10 am
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

Yes (fluke spot meter) and yes - it's fine for my purposes as the camera is looking for the average in the blob.
by Stub
Wed Oct 21, 2020 5:54 am
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

Hi,

I used 3 of these at 6V they are fine (with the FET). https://www.robotshop.com/uk/5v-heating ... 11289.html Other distributors are available, its a sparkfun part.
by Stub
Tue Oct 20, 2020 11:02 am
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

And so what temperature will the 20°C black body be before you power it up?
by Stub
Tue Oct 20, 2020 10:05 am
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

Hi,

Yes its 20-25W or so.

If you do a 20°C version, will it be in a colder ambient temperature area?
by Stub
Mon Oct 19, 2020 1:10 pm
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

Hi,

You have been busy! Thanks for the info. I will wait for the Portenta with the PoE and HQ camera shield. Not in a rush, just wanted to know how difficult it would be.
by Stub
Mon Oct 19, 2020 7:03 am
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

Hi,

Its a 3mm sheet. It would be good to know the results of your design and the dual black body...
by Stub
Mon Oct 19, 2020 6:41 am
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

BTW, nice looking thermal solution... Quick question. Not to worry if not, but I can't see a network port, would that be easy to add via the normal expansion? Or can we add the 5MP camera to the Portenta and use its wired ethernet from the OpenMV side?
by Stub
Mon Oct 19, 2020 4:43 am
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

Hi,

Excellent, good luck with that.

Cheers, Stub
by Stub
Mon Oct 19, 2020 4:20 am
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

Hi,

Yes I almost suggested two black bodies in my last reply.

We use a black coated steel plate, heater controlled with a FET. An SSR would do the same job.
by Stub
Sun Oct 18, 2020 3:37 am
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

Hi, Yes that's exactly what I am using the black body to do. However in your use case it would also work to dramatically improve the readings - I am getting +/- 0.3°C. Obviously you would be working over a larger range so won't be quite as good. You could scale the output around say 30° (ie set the ...
by Stub
Sat Oct 17, 2020 5:53 pm
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

Hi, Yes on both counts. It is detected as a square object using blob detection. Preset as it stands to 37.8°C but this can be changed. Uses an arduino with control software and a temp sensor, in the frame on the heated plate. A couple of buttons on the back allow temperature adjustment. 3D printed f...
by Stub
Sat Oct 17, 2020 2:13 pm
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

Hi, I have used it to provide an accurate threshold so that any pixel above the known temperature of the black body is definitely above the set temperature and any below are not. It was for a low cost skin temperature alarm. I have not used it for the Flir calibration techinique in the manual. Pleas...
by Stub
Thu Aug 13, 2020 5:30 am
Forum: Technical Discussion
Topic: Loading (but not decompressing) jpegs
Replies: 6
Views: 161

Re: Loading (but not decompressing) jpegs

Fantastic. That's just what I am after. That's outstanding support! Thankyou
by Stub
Wed Aug 12, 2020 2:05 pm
Forum: Technical Discussion
Topic: Loading (but not decompressing) jpegs
Replies: 6
Views: 161

Re: Loading (but not decompressing) jpegs

Hi,

Thanks, as I say I only need to be able to load the compressed image again, not actually decompress it. So even a way of loading a file onto the frame buffer would suffice.
by Stub
Wed Aug 12, 2020 1:16 pm
Forum: Technical Discussion
Topic: Loading (but not decompressing) jpegs
Replies: 6
Views: 161

Loading (but not decompressing) jpegs

Hi, I was wondering if there is a way to load a jpeg or mjpeg from SD card and then send that on via the wifi? The image are large as they are recorded in HD so 80-120Kb and thus need to go in the frame buffer or similar. If you have any suggestions that would be great. Alternatively please can you ...
by Stub
Fri Aug 07, 2020 11:57 am
Forum: Technical Discussion
Topic: Radiometric vs Non-Radiometric Leptons
Replies: 55
Views: 1867

Re: Radiometric vs Non-Radiometric Leptons

Hi,

I have designed and built a low cost black body - if you need one to help with this process please let me know.
by Stub
Tue May 12, 2020 1:20 pm
Forum: General Topics
Topic: RPC on Windows 10
Replies: 7
Views: 845

Re: RPC on Windows 10

Hi, as expected 2.7 works brilliantly. Thank you again. The library is excellent. I hope to try the two camera version tomorrow.
by Stub
Tue May 12, 2020 12:46 pm
Forum: General Topics
Topic: RPC on Windows 10
Replies: 7
Views: 845

Re: RPC on Windows 10

Thanks very much indeed for the information. I will download 2.7 and give that a go.
by Stub
Tue May 12, 2020 5:55 am
Forum: General Topics
Topic: RPC on Windows 10
Replies: 7
Views: 845

RPC on Windows 10

Hi, Thanks very much for the new RPC library it is what I have been waiting for. Quick question (hopefully). What version of python are you running on Windows 10? I ask as I have today downloaded 3.8.2 and that has installed 3.7.5. This version has difficulties with the negative numbers in the rpc.p...

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