EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C.
http://www.emt.com.tw
36
4.2.6. EverMore Binary Output Message 0x02: Navigation Data
Purpose
Outputs:
1 GPS
time.
2 Receiver position and velocity in WGS-84 ECEF coordinate.
3 Number of visible satellites.
4 Number of satellites used in position-fix.
5 EB-X315 firmware version.
Format
Byte #
Contents
Range
Size
Scale Unit
1
Message ID = 0x02
Unsigned byte
2 ~ 3
GPS week
0 ~ 65535 Unsigned 16bit integer
week
4 ~ 7
GPS tow
0 ~ 60479900 Unsigned 32bit integer
1/100 sec
8 ~ 11
Position X
+/- 2^31
Signed 32bit integer
meter
12 ~ 15
Position Y
+/- 2^31
Signed 32bit integer
meter
16 ~ 19
Position Z
+/- 2^31
Signed 32bit integer
meter
20 ~ 21
Velocity X
+/- 2^15
Signed 16bit integer
1/10 m/sec
22 ~ 23
Velocity Y
+/- 2^15
Signed 16bit integer
1/10 m/sec
24 ~ 25
Velocity Z
+/- 2^15
Signed 16bit integer
1/10 m/sec
26 (bit0 ~ 3) # of SV used
0 ~ 12
Unsigned 4bit integer
26 (bit4 ~ 7) # of SV visible
0 ~ 12
Unsigned 4bit integer
27 ~ 28
Firmware version
0 ~ 65535 Unsigned 16bit integer
1/100
