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14 | GPS Sensor
14.1 Serial interface characterization
14.2 Protocol
14.3 Sensor recommendation
14.4 Measurement labels
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14 GPS Sensor
Space-based global navigation satellite system
GPS provides positioning, navigation, and timing services to worldwide users
GPS receiver (sensor) gives digital information about position (longitude, latitude, and
height), ground speed, course, and status
Two types of GPS receivers:
CAN output -> Read in messages via CAN Input of C 60 (not covered here)
Serial output -> Read in messages via RS232 Interface of C 60 (serial interface 2)
Serial Interface is characterized by:
Voltage levels: RS232 is standard (+/-12 V), UART (0 V/ 5 V) needs level shifter
Baud rate: 9,600 is standard for GPS, C 60 supports 1,200 to 115,200 baud. GPS Rx inter-
face baud rate must match C 60 interface baud rate. C 60 Baud rate can be set with the
'GPS_BAUDRATE' characteristic Data format: C 60 expects 8 data bits, no parity bit, 1 stop
bit (8N1)
C 60 expects NMEA Protocol (ASCII).
The following messages are decoded:
Message
GGA
GSA
GSV
RMC
VTG
On most GPS sensors, these messages are activated in the default configuration.
The system has been tested with the Navilock NL-8004P MD6 Serial PPS Multi GNSS Re-
ceiver. This sensor is based on a U-Blox 8 chipset and is fully configurable with the
Navilock "U-Center" software. To use this sensor with Bosch Motorsport components the
transfer rate, the satellite system and the update rate needs be reconfigured. More in-
formation about the configuration can be found in the Appendix.
The decoded NMEA messages are copied to these C 60 measurement labels.
Measurement label
gps_PDOP
gps_HDOP
Data_Logger_C_60_Manual
Function
GPS fix information
Overall satellite data
Detailed satellite data
Recommended minimum data for GPS
Vector track and speed over the ground
Function
Position Dilution Of Precision
Horizontal Dilution Of Precision
Bosch Motorsport
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