Usage Example for GNSS-Positioning Information Reading

Hardware Preparation

• TEL0182 SIM7070G Global NB-IoT Communication Module x1
• Windows11 PC x1
• NB SIM card x1
• NB_RF antenna x1
• GPS antenna x1
• FIT0668 Type-C&Micro 2-in-1 USB Cable x1

Software Preparation

• Download and install the driver: Click to download driver

Operation Steps

AT+CGNSPWR=1

//Turn on GNSS power (UART or USB AT port)

AT+CGNSINF

//Read GNSS navigation information

Running Results

Assume that the positioning data printed by the serial port is: 1,1,20191024051848.000,12.345678,123.456789,123.123,0.00,-1.8,0,,1.4,1.7,0.9,,6,,12.4,12.0

The following is the specific meaning of the GNSS navigation information read by the SIM7070G module:

1. GNSS running status: the value 1 indicates that GNSS is running
2. Positioning status: the value 1 indicates successful positioning
3. UTC date and time: 20191024051848.000, the format is year, month, day, hour, minute, second. Milliseconds
4. Latitude: 12.345678 degrees
5. Longitude: 123.456789 degrees
6. MSL altitude: 123.123 meters
7. Ground speed: -1.8 kilometers per hour
8. Ground direction: speed is 0
9. Positioning mode: value 0 indicates automatic selection to use GPS and GLONASS
10. Reserved1: Reserved field, data missing
11. HDOP: Horizontal accuracy factor, value 1.4
12. PDOP: Position accuracy factor, value 1.7
13. VDOP: Vertical accuracy factor, value 0.9
14. Reserved2: Reserved field, data missing
15. GNSS Satellites in View: Number of visible satellites, value 6
16. Reserved3: Reserved field, data missing
17. HPA: Horizontal protection limit, value 12.4 meters
18. VPA: Vertical protection limit, value 12.0 meters

You cannot connect to the cellular network and GPS positioning at the same time.