How to get data from Raspberry pi to Ground unit

Hello, Actually I’m currently working on a drone using pixhawk cube orange, herelink and raspberry pi.
Currently I’m using intel realsense T265 for the image capturing. Just what I want to know is how I’ll get image in the ground unit. How to establish the connection between the rpi, pixhawk, herelink and camera and whats the entire procedure from input to output

Did you try this procedure?