v57ali
Newbie level 5
- Joined
- May 10, 2011
- Messages
- 10
- Helped
- 6
- Reputation
- 12
- Reaction score
- 6
- Trophy points
- 1,283
- Activity points
- 1,369
hello
I have extracted Latitude, Longitude, Time and Speed from the response of AT+CGPSINF=32.But i have a question.
Can anybody say to me What the unit of speed is? Is Speed over Ground in knots or not?
I multiplied it at 1.85 to convert it to km/h But the speed is not correct.
The response in AT command mode with AT+CGPSINF=32 is: 32,170139.000,A,3546.343899,N,5121.076898,E,26.32,256.26,170114,,E,A
and the speed is 26*1.85=48 (km/h).
But the string in GPS/TXD is: $GPRMC,170138.000,A,3546.347408,N,05121.093972,E,51.020,,170114
and the real speed is 51*1.85=94 (km/h).
Why these speeds are different?
Please help me.
Thanks in advance
I have extracted Latitude, Longitude, Time and Speed from the response of AT+CGPSINF=32.But i have a question.
Can anybody say to me What the unit of speed is? Is Speed over Ground in knots or not?
I multiplied it at 1.85 to convert it to km/h But the speed is not correct.
The response in AT command mode with AT+CGPSINF=32 is: 32,170139.000,A,3546.343899,N,5121.076898,E,26.32,256.26,170114,,E,A
and the speed is 26*1.85=48 (km/h).
But the string in GPS/TXD is: $GPRMC,170138.000,A,3546.347408,N,05121.093972,E,51.020,,170114
and the real speed is 51*1.85=94 (km/h).
Why these speeds are different?
Please help me.
Thanks in advance