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T ab le 42 - Format of accelerometer readings data structure of EGTS_ECALL_SERVICE service
EGTS_SR_ ACCELDATA subrecord
Bit 7
Type
Data type
RTM (RelativeTime)
M
USHORT
Size,
bytes
2
XAAV (X Axis Acceleration Value)
M
SHORT
2
YAAV (Y Axis Acceleration Value)
ZAAV (Z Axis Acceleration Value)
M
M
SHORT
SHORT
2
2
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(Field) parameters in Table 42 have the following assignment:
- RTM - increment of the previous record of measurement interval (increment to ATM field
for the first record), in ms;
- XAAV - linear acceleration value along X axis (the high bit defines the symbol, 1 denotes
to the negative value), 0.1 m/s ;
- YAAV - linear acceleration value along Y axis (the high bit defines the symbol, 1 denotes
to the negative value), 0.1 m/s ;
- ZAAV - linear acceleration value along Z axis (the high bit defines the symbol, 1 denotes
to the negative value), 0.1 m/s. Acceleration fields resolution should not exceed 0.01G.
5.3.4 EGTS_SR_MSD_DATA subrecord
EGTS_SR_MSD_DATA subrecord structure is given in Table 44 and meets requirements
to MDS, specified.
T ab le 43 - EGTS_SR_MSD_DATA service subrecord structure EGTS_ECALL_SERVICE
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
FV (FormatVersion)
-
MI (MessageIdentifier)
CN (Control)
VT(Vehicle Type)
POCN
CLT
ACT
VIN (Vehicle Identification Number)
VPST (Vehicle Propulsion Storage Type)
TS (Time Stamp)
PLAT (Position Latitude)
PLON (Position Longitude)
VD (Vehicle Direction)
RVP n-1 LATD(Recent Vehicle Position n-1 Latitude Delta)
RVP n-1 LOND(Recent Vehicle Position n-1 Longitude Delta)
RVP n-2 LATD(Recent Vehicle Position n-2 Latitude Delta)
RVP n-2 LOND(Recent Vehicle Position n-2 Longitude Delta)
NOP (Number Of Passengers)
AD (Additional Data)
Type
Data type
Size, bytes
M
BYTE
1
M
M
M
M
M
M
M
M
O
O
O
O
O
O
BYTE
BYTE
STRING
BYTE
BINARY
BINARY
BINARY
BYTE
BINARY
BINARY
BINARY
BINARY
BYTE
STRING
1
1
17
1
4
4
4
1
2
2
2
2
1
0...56
(Field) parameters in Table 43 have the following assignment:
- FV is data format version (the field should contain 1);
- MI - message identifier (a field should contain value, starting with 1, and increment by
1, each time a message is sent after event occurrence);
- CN - a bit control field;
- VT - bit flags, characterizing a vehicle type [ 5 ]: