INS
GUI User’s Manual
Inertial Labs, Inc
TM
Address: 39959 Catoctin Ridge Street, Paeonian Springs, VA 20129 U.S.A.
Tel: +1 (703) 880-4222, Fax: +1 (703) 935-8377 Website: www.inertiallabs.com
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AA.zzzz is accelerpmeter Z data in g;
ttttttttt is timestamp (milliseconds from the beginning of the GPS reference week);
TTT.t is temperature inside INS (averaged value for 3 gyros);
VV.v is input voltage of the INS;
SSSS is unit status word, USW (see Appendix D for details). It is hex written with
ASCII;
CC is check sum that consists of a "*" and two hex digits representing XOR of all
characters between, but not including "$" and "*".
At the “Cobham UAV 200 Satcom” the INS data are transmitted as AT-
commands in the form of sentences with printable ASCII characters. Each
sentence starts with a "AT_ITINS=" text and ends with <CR><LF> (carriage
return 0xD and line feed 0xA symbols). All data fields are separated by
commas. The general form of the “Cobham UAV 200 Satcom” sentence is
the next
AT_ITINS=<lat>,<lon>,<alt>,<height>,<utc>,<ns_vel>,<ew_vel>,
<gnd_spd>,<track_ angle>,<roll>,<pitch>,<heading>,<mag_heading>,
<roll_rate>,<pitch_rate>,<heading_rate><CR><LF>
Table C.29. Structure of the “Cobham UAV 200 Satcom” sentence
<year>.<month>.<day>-
<hour>:<minute>:<second>