VAL Avionics NAV 2000 Installation Guide Page 397

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SkyView System Installation Guide - Revision R 25-1
25. Appendix F: User Data Logs
SkyView continuously stores three retrievable data logs that can be exported for user analysis.
These data logs are stored on SkyView’s internal flash memory and are exported to a USB flash
drive.
User Data Log
Filename format:
DATE-TAILNUMBER-FIRMWAREVERSION-OPTIONAL33CHARACTERS-USER-LOG-DATA.csv
Example:
2014-08-07-N123X-11.0-CROSS_COUNTRY_LEG1-USER_LOG_DATA.csv
(CROSS_COUNTRY_LEG1 is user-selectable text, up to 33 characters, at time of export.)
The User Data Log contains plain-text tabular data that records the entire state of your SkyView
system at a recording rate of your choosing (see below). This includes over 100 items, and
includes all ADAHRS (flight instrument) data, Engine parameters, GPS data, Autopilot status,
Transponder status, time, and more.
When exported, the data log is a standard CSV (comma separated value) file and can be viewed
in spreadsheet programs such as Microsoft Excel once exported from the system. The top row
of the CSV file is a header row which documents the format of the file. The headers for each
configurable EMS input follow the following format: Name (Units) (where the “Name” field is as
it is named in the SENSOR INPUT MAPPING setup menu). Each row beneath that header row
contains an individual record or instantaneous snapshot of all of the recorded fields.
Because different SkyView systems have different EMS pin mappings, the order and content of
the columns can be dynamic from system to system.
The User Data Log records at the selected Record Rate (see below) any time the SkyView
system is powered on.
A sample of what a few columns and rows of data would look like when viewed in a
spreadsheet program is shown below. An actual user data log would have over 100 columns of
data, and many thousands of rows:
System
Time
Pitch
(deg)
Roll
(deg)
Magnetic
Heading
(deg)
Indicated
Airspeed
(knots)
Pressure Altitude (ft)
1:50:38
0.2
-1.7
134.4
0
4364
1:50:38
0.2
-1.8
134.4
0
4364
1:50:38
0.2
-1.8
134.3
0
4364
1:50:38
0.2
-1.8
134.4
0
4364
1:50:39
0.2
-1.8
134.4
0
4364
1:50:39
0.2
-1.7
134.4
0
4364
Table 86 - User Data Log Excerpt Example
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