#9: Add support for temperature and tank pressure on Mares Nemo Air -------------------------------------+------------------------------------- Reporter:| Owner: jefdriesen bbremer | Status: new Type:| Component: Dive parsing enhancement | Keywords: Priority:| major | Version:| 0.4 | Plattform (please give specifics in | the ticket text): All | -------------------------------------+------------------------------------- \ \ I would like to provide dumps for Mares Nemo air, FW Version: 01003, HW Version: 00003
The dump created doesn't contain the temerature measurements and the tank preasure.
Beside the normal dumps I added the file export_from_dive_diary.uddf There the preassure values for start and end can be seen. 19467000.00 is equivalen to 194.6 bar The tankpressure values seem to be delta values
The temperature values seem not be correctly exportet by the original program to export_from_dive_diary.uddf (Divers Diary)
I included the file temperatures which is a list of lowest temperatures by dive ID. The original program is able to display the temperature \ \ \
-- Ticket URL: http://trac.libdivecomputer.org/ticket/9 libdivecomputer <www.libdivecomputer.org> a cross-platform and open source library for communication with dive computers from various manufacturers
#9: Add support for temperature and tank pressure on Mares Nemo Air -------------------------------------+------------------------------------- Reporter: bbremer | Owner: Type: enhancement | jefdriesen Priority: major | Status: Version: 0.4 | closed Keywords: | Component: | Dive parsing | Resolution: | duplicate | Plattform (please give specifics in | the ticket text): All -------------------------------------+------------------------------------- \ \ \ \ Changes (by jefdriesen):
* status: new => closed * resolution: => duplicate
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Comment:
As far as I know, the Nemo Air doesn't record pressure per sample. I suspect the data in the uddf file is interpolated from the begin/end values. Now, regarding these begin/end values for temperature and tank pressure, the libdivecomputer api currently doesn't support those. That's already on the todo list. See tickets #3 and #4.
So I'll close this ticket as a duplicate. (If you think I missed something, you can always re-open the ticket.) \ \ \
-- Ticket URL: http://trac.libdivecomputer.org/ticket/9#comment:1 libdivecomputer <www.libdivecomputer.org> a cross-platform and open source library for communication with dive computers from various manufacturers
#9: Add support for temperature and tank pressure on Mares Nemo Air -------------------------------------+------------------------------------- Reporter: bbremer | Owner: Type: enhancement | jefdriesen Priority: major | Status: Version: 0.4 | reopened Keywords: | Component: | Dive parsing | Resolution: | Plattform (please give specifics in | the ticket text): All -------------------------------------+------------------------------------- \ \ \ \ Changes (by bbremer):
* status: closed => reopened * resolution: duplicate =>
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Comment:
Please see the newly attached screenshort air_consume_nemo_air.jpg. There you can see air consumation in blue. I don't think this values are interpolated, hence I would like to reopen the ticket \ \ \
-- Ticket URL: http://trac.libdivecomputer.org/ticket/9#comment:2 libdivecomputer <www.libdivecomputer.org> a cross-platform and open source library for communication with dive computers from various manufacturers
#9: Add support for temperature and tank pressure on Mares Nemo Air -------------------------------------+------------------------------------- Reporter: bbremer | Owner: Type: enhancement | jefdriesen Priority: major | Status: Version: 0.4 | accepted Keywords: | Component: | Dive parsing | Resolution: | Plattform (please give specifics in | the ticket text): All -------------------------------------+------------------------------------- \ \ \ \ Changes (by jefdriesen):
* status: reopened => accepted
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Comment:
I think you are right. I forgot that the Nemo Air uses 5 bytes per sample instead of 2. Those extra 3 bytes may indeed contain tank pressure data.
Initial investigation shows that one of those bytes contains the gas consumption (in l/min) for each sample. That's most likely the value used to plot the graph you attached. So far I have not been able to find the tank pressure per sample, only the begin/end values. I could find the values corresponding to the <tankpressure> elements in the uddf. But if I treat those as delta values, then the pressure drops too fast, and I end up with negative pressures. That's certainly not correct. \ \ \
-- Ticket URL: http://trac.libdivecomputer.org/ticket/9#comment:3 libdivecomputer <www.libdivecomputer.org> a cross-platform and open source library for communication with dive computers from various manufacturers
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