Intellipap Data Format
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This is a work in progress. Nothing should be taken literally here.
Contents
Data format/capabilities analysis
Grade: F
Negatives
- Manufacturer failed to openly document this format.
- No Flow Waveform, unless hacked out through serial port. (awarded an instant F)
- Very Low resolution event/graph data..
- Events wound not be able to sync even with flow waveform data.
- Only the last two settings changes are kept.. :(
- Needs a separate data module for SD logging.
Positives
- Non-complicated data structures
- Machine is firmware upgradable, so there is hope for this machine.
Intellipap Data Format
Intellipap support is still very young, but functional.
I've still got to finish updating this..
Most of this is crud.. Check the SleepyHead source code for more accurate information.
"U" Files
This is the session Index.
It contains repeating 9 byte codes, containing two 32bit (big endian) timestamps, and a single checksum byte.
Timestamps are in seconds since midnight 1 January 2002.
Points to the start and stop time of each session.
A few lines of hex data
12,07,CB,EF,12,08,2F,98,A3 12,09,27,15,12,09,34,14,D8 12,09,35,0C,12,09,35,C4,F1 12,09,35,C6,12,09,90,CF,5F 12,0A,08,4F,12,0A,08,50,86 12,0A,08,51,12,0A,09,76,62 12,0A,09,78,12,0A,09,95,55 12,0A,09,98,12,0A,09,BA,ED
"L" Files
This contains the session data.
Repeating 26 byte codes.
Start with a 32bit time-stamp, a sequence of graph/etc data, and end with a 8bit checksum.
Code Details Notes 0x00-0x03 32bit TimeStamp Big Endian, seconds since 1st January, 2002 0x04 ??? Snore 0x05 ??? Snore Seems the more likely of the two. 0x06 Leak Average 0x07 Leak Max 0x08-0x09 16bit Tidal Volume Big Endian 0x0a Respiratory Rate 0x0b ??? Unknown Always 0x0a. Could be Standard Deviation? 0x0c ??? Unknown graph (Mapped to Ti) in SleepyHead 0x0d Pressure 0x0e ??? Unknown Always seems to be 0x90 0x0f ??? Unknown 0x10 >0 Apnea 0x11 >0 Hypopnea 0x12 >0 NRI 0x13 Low Pressure 0x14 Hi Pressure 0x15-0x18 ??? Unused 0x19 Checksum
A few lines of hex data
12,07,CB,EF,00,00,43,20,04,23,10,0A,0E,59,90,00,00,00,00,5A,78,00,00,00,00,80 12,07,CD,57,00,00,39,21,02,BC,10,0A,14,5B,90,00,00,02,01,5A,78,00,00,00,00,EA 12,07,CE,BF,00,00,37,22,02,5A,13,0A,13,63,90,00,00,02,00,5A,78,00,00,00,00,5C 12,07,D0,27,00,00,34,22,02,55,13,0A,14,6A,90,00,00,01,00,5A,78,00,00,00,00,77 12,07,D1,8F,00,01,3D,23,02,9B,13,0A,12,6B,90,00,00,02,00,5A,78,00,00,00,00,CA 12,07,D2,F7,00,01,4D,25,03,53,10,0A,0D,6E,90,00,00,00,00,5A,78,00,00,00,00,4F 12,07,D4,5F,00,00,3D,25,02,70,11,0A,0D,69,90,00,00,01,00,5A,78,00,00,00,00,BA 12,07,D5,C7,00,00,36,25,02,1F,15,0A,0F,68,90,00,00,00,00,5A,78,00,00,00,00,39
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