How to Assign Waypoint with using GPS Data That Came From MiniPC

Hello everybody,
I want to ask a question.
We are determine red circle with using NVidia Jetson Nano and OpenCV Libraries(with camera module). We can determine real position of founded red circle but we can’t send these GPS data into pixhawk as a new waypoint. We already draw a route with mission planner but when we determine red circle , we need to assign new waypoint for second cycle flight. But don’t know exact location of red circle so we need to import gps data from miniPC to pixhawk. How can we assign the new waypoint ?
Note: We can communicate pixhawk and JetsonNano but cant sent GPS Data from miniPC to Pixhawk
Note2: We use 2 here3 gps and both are connected to pixhawk cube orange.