I lost my SD card last night....

I lost my SD card, in my apartment.

I took it out of the computer after importing the data to sleepyhead to see what was going on with therapy with the new F10 air fit mask odyssey I'm on. I went from a medium to a large. The large feels like a helmet instead of a mask, but the medium felt too small (I used the Simplus the first six months). So in trying a different brand, I was looking to see if there are any results.

Even though the mask feels "too big" and the medium feels "too small" the data said I had a great couple of nights with the Large Mask except for one 7-minute leak 3 nights ago. So that was a relief. .67 OSA AHI!

So a couple of hours later I go to bed later and there was no SD card in the machine. I usually put it right back in there after an import. Obviously I spaced it out. I have no idea where it is. I did go on a scavenger hunt of everywhere I had been during the night. However, no luck.

I guess I can go get another one but are there any ramifications to losing it? I had imported the most recent data into sleepy head so I can use that to verify my compliance to insurance if that came up.

I'm thinking I'll run into it one of these days, but in the meantime I guess I'll go replace it. Anything I need to know or do you just stick it in the slot and it works.

I'm kind of new to all this.

You got it...stick it in the slot and it works

I'm new to all of this too so I have more questions than answers. Does the machine itself store a certain amount of information? And will that information be written to a new card once it's inserted? Will the insurance company accept data from SleepyHead for compliance purposes? How does your compliance data get reported now? My machine came with a modem so the data can be called in on their schedule.

from what I understand the machine itself stores plenty of compliance data, so I think you are only risking the detail data.
Did you copy an image of the SD card? Sleepyhead will have the old data available for its use, but I think it is a different layout than the machine needs.

Go buy yourself a new SD card - they have them everywhere. The smallest one you can find is fine - they don't make them too small any more.

Compliance data is stored in the machine and gets written to any SD card that you insert. Since you imported data before you lost it, you will only lose detailed data until you put a new card in.

You will find the old card one of these days and then you'll have a spare for the NEXT time you lose it!

The PR S1 machines actually store quite a bit of detailed data on the machine itself.
If a card is left out of the machine overnight all that is lost is the flow rate graph...all other graphs are stored on the machine and will be written to the new SD card when it gets inserted.
You don't have to do anything special to the new SD card either...just stick it in the slot and the machine will do whatever it needs to do to format and write to the SD card.
I don't remember just how long those detailed graphs (with the exception of flow rate) stay on the machine before they start getting written over but I think 3 maybe 4 weeks.
Summary and any compliance usage data is stored for 1 year on the machine.
You lose only flow rate graph if you don't have the SD card tonight. Not a big deal.

Also, I would suggest you consider getting a Toshiba Flashair SD card (connects with your home network on WiFi) and run that with Sleep Master if you think you are at risk of losing another one. With that setup you only have to open you PC/laptop and SleepMaster will import it into your PC and format for Sleepyhead. You never need to take the SD card out. I use this setup with an auto transfer in the morning so the files are already on another SD card connected to my server ready to be analyzed.

From my investigation while developing Sleep Master, the PRS1 writes detailed data to the SD card every five minutes. It creates the detail data file ( .005 ) and then appends to the file. When the machine is turned off, it finalizes the .005 file and writes the .001 and .002 files to the SD card.

Detail data is lost if the SD card is not in the machine when the machine is turned off. Compliance general data is stored in the machine and will be written to the SD card when inserted.

Tom

Jack_Russel_Fan wrote:From my investigation while developing Sleep Master, the PRS1 writes detailed data to the SD card every five minutes. It creates the detail data file ( .005 ) and then appends to the file. When the machine is turned off, it finalizes the .005 file and writes the .001 and .002 files to the SD card.

Detail data is lost if the SD card is not in the machine when the machine is turned off. Compliance general data is stored in the machine and will be written to the SD card when inserted.

The xxx.001 and xxx.002 files are stored on the PR S1. You won't lose those files if the machine doesn't have a SD card in the slot at the end of the night.

The xxx.005 file is the flow rate/wave form data file and that is the file that is NOT stored on the PR S1 and lost if there is no SD card in the slot.

I have left the card out of my PR S1 (usually in the computer still) and when I go put it back in the PR S1 and let it write to the SD card and then pull the card to get the report the only detailed data I have lost is the flow rate graph. All other SleepyHead graphs are still available.
If using Encore the only thing absent is the wave form graph.

Now the ResMed S9 is a different story if the SD card is left out...nothing except cursory compliance usage is stored on those machines but on the PR S1 machines everything except wave form is stored on the machine.

This about the PR S1 machines I am certain of. I did it too many time (leave the card in the computer ) so I know for sure that very little is lost.

I bought a new SD card after about 8 days, figuring the other one really is lost.

It works fine...the 8 days of data when I didn't have an SD card in the slot on the machine didn't go onto the new card. Is that normal?

Other then that thanks for the advice, all working well again.

I went back to the Medium sized Simplus after buying a brand new cushion on Amazon for $20 and what a difference that has made. I should've done that sooner I guess. I've retired the size Large Fit F10 for emergencies (I had changed masks). The simplus is working better on the leak front. I guess I'm in between sizes on the F10. It'll end up in my failed CPAP experiments box.

Are you saying that there are 8 nights where there is 0 data at all?
That's unusual to not have any data at all. We know the flow rate (wave form) graphs won't be on the card but the other data is stored within the PR S1 machine for about 3 to 4 weeks and will be written onto the SD card when it is inserted.

I never went 8 nights but I have gone 3 and all I lost was the flow rate graphs for those 3 nights.

Look inside the P0 folder (which is inside the Pserial number folder) and look at the bottom of the list of files for the usual data files
xxx.001 (compliance hours of use)
xxx.002 (other data)
xxx.005 will be the flow rate/wave form files...you should see them for nights you had the card in the PR S1 and not on the nights it wasn't.
And in this case since it is a brand new card you won't see the past xxx.005 files but you should start seeing them now. You should have all the other files though.

none of the 8 nights of data ended up on the new SD card...it didn't "go onto the card" I guess.

I know the machine still had data, I'd look at it on the limited screen just to see how the AHI went the night before and the leaks etc.
So I know the machine seemed to record the data, but when I import onto sleepy head, it only imports the nights since I purchased the SD card.

So i'm missing 8 nights on sleepyhead (it just doesn't feel right lol. I guess it doesn't matter but I of course wanted to see the data.).

I kind of assumed once i stuck the card into the machine, it'll all transfer. That hasn't happened in my case anyway.

NMchop wrote:I kind of assumed once i stuck the card into the machine, it'll all transfer. That hasn't happened in my case anyway.

You are the first that I have heard of this happening. Always before the data was there.
Is your total therapy use hours showing on the machine LCD screen correct?

For the nights with no Detail Data (no card in the machine), SleepyHead will display a big Sheep on the graphics page with the notation "Summary Only " at the bottom.
The Daily Sidebar on the left should display the Summary Data, though there has been some discussion here that this information isn't correct when Detail Data is not available, see viewtopic.php?f=1&t=105363&st=0&sk=t&sd=a#p996662

Jay Aitchsee wrote:For the nights with no Detail Data (no card in the machine), SleepyHead will display a big Sheep on the graphics page with the notation "Summary Only " at the bottom.
The Daily Sidebar on the left should display the Summary Data, though there has been some discussion here that this information isn't correct when Detail Data is not available, see viewtopic.php?f=1&t=105363&st=0&sk=t&sd=a#p996662

Pretty sure that is related to ResMed only machines.
Respironics machines (or at least the several I have had and used and left SD card in computer) will show all the graphs on the left side with the exception of flow rate graph on SleepyHead.

If I have time today I will get my 760 out and use it while watching TV or something with the SD card out of the machine and then see what I get once I put it back in the 760.