Long term inability to locate
Firstly, because the satellite positioning system requires time for cold start. If the situation does not improve after waiting for a few minutes, it may be because the satellite positioning system antenna is shielded and the satellite positioning system is interfered by nearby electromagnetic fields. We need to remove the shielding material, keep it away from the interference source, and place it in an open area to see if it improves.
Another possible reason for this situation could be that the satellite positioning system has not been powered on for a long time, the distance between the local location and the last location determined by the satellite positioning system is too far, or the microwave power switch was turned on before the drone was positioned. You can try turning off the microwave power switch, turning off the system power, and restarting the system power at intervals of more than 5 seconds to wait for positioning. If the location cannot be determined at this time, it may be due to performance issues with the satellite positioning system itself, and it needs to be taken to professional agricultural plant protection drone maintenance personnel for handling.
Deviation from the flight path during automatic flight
Firstly, check if the drone is leveled and adjust it to fly directly and maintain altitude without human intervention. Secondly, check the wind direction and strength, as strong winds can also cause such malfunctions, and choose to take off the drone when the wind is weak. Furthermore, check if the balance meter is placed in the appropriate position by switching the drone to manual flight mode and placing the balance meter in the appropriate position.
Unable to receive data from the drone
Check if the wiring connectors are loose or not connected, verify if the connection button and serial port of the ground station are set correctly, if the serial port baud rate is set correctly, if the data transmission channels of the ground station and drone are set consistently, and if the satellite positioning system data on the drone is sent to the flight control. If there is a problem in any link, communication cannot be established. After checking for accuracy, reconnect. If the connection is still unsuccessful after checking, you can restart the ground station computer and drone system power supply, and generally connect to communication. (Northern Agriculture)