Patent ID: 11953917
Assignee: SHENZHEN SIYUFEI TECHNOLOGY CO., LTD.
Field: Control (Instruments)
Classification: CPC G  B  Y | IPC B  G

Claim 0:
1. A launching method for an unmanned aerial vehicle dispenser based on geomagnetism, comprising:
obtaining geomagnetic triaxial data at current time according to a preset heartbeat time;
calculating a corrected geomagnetic triaxial data according to the geomagnetic triaxial data at the current moment;
calculating an angle value according to the corrected geomagnetic triaxial data, and storing the angle value in a pre-established system data set, the pre-established system data set has a fixed length and is a set of the angle values stored by way of an iterative overlap;
obtaining an updated system data set by using a Fourier transform algorithm to on all of the angle values in the system data set,
calculating an angle difference value of the updated system data set accumulated in a preset time period, and controlling the unmanned aerial vehicle dispenser to execute a launching action when the angle difference value is greater than the preset angle value, and
wherein calculating the corrected geomagnetic triaxial data according to the geomagnetic triaxial data at the current moment comprises:
obtaining a new geomagnetic triaxial extreme value data by comparing the geomagnetic triaxial data at the current moment with a previous geomagnetic triaxial extreme value data;
obtaining geomagnetic triaxial correction parameters based on the new geomagnetic triaxial extreme value data;
obtaining the corrected geomagnetic triaxial data based on the geomagnetic triaxial data at the current moment and the geomagnetic triaxial correction parameters.