24-Jun-2021, 09:02 AM
I would like to speed up the cold start of the GPS module a bit.
I have partially solved this before by powering the GPS module both from the battery and also directly from the USB connector of the flight controller. Before I prepare the equipment for the flight, I first connect the FC to the smartphone with SpeedyBee running and let it catch the 3D fix, the GPS module is powered from the smartphone through the FC and at the same time I see how it searches for satellites. It is nice. It usually finds 6 satellites in two to three minutes, which is just enough time before I prepare the googles, the transmitter and attach battery to the frame. After many intended GPS rescues, I found that a 3D fix with 6 satellites is not exactly accurate, some recommend 8 satellites as a minimum for a good 3D fix. However, finding 8 satellites after a cold start usually takes much longer if the drone is still on the ground and you know, time is always short. The solution is to take off to a height for a while, the number of satellites will grow quite quickly, land and rearm. But this is another waste of time that I would like to avoid.
So my question is, does Speedy Bee support A-GPS? Or is this support planned for the future? If SpeedeBee will provide assisted GPS support for the GPS module through a connected smartphone with a data connection, the 3D fix could be significantly faster and more accurate.
I have partially solved this before by powering the GPS module both from the battery and also directly from the USB connector of the flight controller. Before I prepare the equipment for the flight, I first connect the FC to the smartphone with SpeedyBee running and let it catch the 3D fix, the GPS module is powered from the smartphone through the FC and at the same time I see how it searches for satellites. It is nice. It usually finds 6 satellites in two to three minutes, which is just enough time before I prepare the googles, the transmitter and attach battery to the frame. After many intended GPS rescues, I found that a 3D fix with 6 satellites is not exactly accurate, some recommend 8 satellites as a minimum for a good 3D fix. However, finding 8 satellites after a cold start usually takes much longer if the drone is still on the ground and you know, time is always short. The solution is to take off to a height for a while, the number of satellites will grow quite quickly, land and rearm. But this is another waste of time that I would like to avoid.
So my question is, does Speedy Bee support A-GPS? Or is this support planned for the future? If SpeedeBee will provide assisted GPS support for the GPS module through a connected smartphone with a data connection, the 3D fix could be significantly faster and more accurate.