Arbiter Systems 1088A, Руководство по эксплуатации

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78 Serial Communication and Command Set
Survey Status
Command: SQ
SQ returns Auto-Survey mode data. For a survey in progress, it returns current status of the
survey. For a completed survey, it returns the final results of the survey, i.e. the averaged position.
Response:
Sn Pm Fnnnn #nnnn Tyyyy:dd:hh:mm:ss Eddd:mm:ss.sss Ndd:mm:ss.sss Hmmmmm.mm
C
Format: Sn = status of the Auto-Survey mode
Pm = status of the Position-Hold mode
Fnnnn = current number of fixes
#nnnn = total number of fixes required
yyyy:ddd:hh:mm:ss = completion time of the most recent average
Eddd:mm:ss.sss
= surveyed longitude East, (W = West)
Ndd:mm:ss.sss = surveyed latitude North, (S = South)
Hmmmmm.mm = surveyed elevation
Table 9.2 columns on the left show the significant three bits of the Auto Survey status byte,
weighting and assignments. On the right, columns show the significant three bits of the Position
Hold status byte, weighting and assignments.
Bit Weight Function Bit Weight Function
0 (LSB) 1 Single Auto Survey 0 (LSB) 1 Position Hold Enabled
1 2 Power-On Survey 1 2 Position Hold Active
2 4 Suspend Survey 2 4 Position Hold ID: *
3–7 N/A – 3–7 N/A –
Table 9.2: Survey (Sn)/Position-Hold Status (Pm)
*0=surveyed, 1=User-entered
The remainder of the information is the running position average, including all fixes since the
beginning of the Auto Survey cycle. Gives latitude and longitude in degrees, minutes and seconds.
Indicates E, W, N, and S respectively as East or West longitude and North or South latitude, and
H indicating elevation in meters WGS–84 (World Geodetic Survey, 1984).