However, during the use of the P20 plant protection drone , it may be unable to enter (or exit) the RTK state due to certain factors or malfunctions, resulting in the drone being unable to take off (or the positioning accuracy is low, emergency landing, drift collision, etc.) ).
Therefore, when such problems occur in the P20 plant protection drone, we should promptly eliminate the need to avoid affecting normal operations and equipment safety.
Troubleshooting
Common reasons:
Analysis of the two dimensions leads to the reasons why P20 cannot enter the RTK.
First, the satellite signal
1. The GNSS RTK antenna (above the arm No. 3 and No. 4) has a faulty fault or poor feeder connection, which prevents the satellite navigation signal from being acquired normally, thus affecting the UAV's entry into the RTK state.
2. Due to environmental, weather, distance and other factors, the shared satellite between the drone and the base station is insufficient.
Second, differential data
1. The drone is not properly set up and connected to the RTK base station, so that the differential data broadcast by the base station cannot be obtained.
2. The 4G LTE antenna (located on the right side of the nose) and the 900MHz antenna (located under the No. 4 arm) for obtaining differential data are faulty or the feeder connection is poor, resulting in the failure to obtain differential data.
3. Due to factors such as environment, weather, distance, etc., the differential data received by the drone is invalid (for example, the delay is more than 10s).
Solution:
1. GNSS RTK can be checked by tightening the feeder connection and replacing it (such as replacing the "triple play" 4G LTE antenna (900MHz antenna) with a functioning "two-in-one" 4G LTE antenna (900MHz antenna). Whether the antennas and feeders of the positioning system are normal and the connection is normal.
2. Search and select the RTK base station to which the drone is connected.
3. When the fixed base station is far away or the terrain of the area is complex and variable, the mobile base station is reasonably added and selected as the RTK base station connected to the drone.
4. Reasonably set up the mobile base station, away from the wind-proof forest, high-voltage power, etc., try to avoid the inability to enter the RTK state due to insufficient satellite sharing between the mobile base station and the drone, or the inability to obtain differential data, or invalid differential data.
ShenZhen Antenk Electronics Co,Ltd , https://www.antenkelec.com