DJI GNSS
Receiver
DJI Flight
Controller
DJI Air
Downlink
DJI CAN Bus
API Port
UART
Laser / Radio
Altimeter
I²C / UART
Onboard Software
(UgCS SkyHub)
Payload
Data
Log
Drone
Position
Log
System
Log
Payload
Payload
Ethernet
Bluetooth / Wi-Fi
DJI Onboard
SDK
UgCS SKYHUB
Drone
Ground
DJI Remote
Controller
Radio Link
UgCS for DJI Mobile Application
Android Device
Laptop
Wi-Fi / Bluetooth
UgCS
Client
UgCS
UCS
Custom
Payload
Monitor
Wi-Fi
USB
UART / RS232
Figure 1.1 — DJI SDK drone interaction diagram
Ardupilot / PX4
Flight Controller
GNSS
Receiver
Air Telemetry
Module
Telemetry
Port
UART
Laser / Radio
Altimeter
Onboard Software
(UgCS SkyHub)
Payload
Data
Log
Drone
Position
Log
System
Log
Payload
Payload
Ethernet
Bluetooth / Wi-Fi
Mavlink
UgCS SKYHUB
Drone
Ground
Ground Telemetry
Module
Radio Link
Laptop
UgCS
Client
UgCS
UCS
Custom
Payload
Monitor
Wi-Fi
USB / Wi-Fi
UART / RS232
Figure 1.2 — ArduPilot / PX4 based drone interaction diagram
1 • Description
UgCS SkyHub User Manual
Copyright © 2019—2021, SPH Engineering
8
Revision 5 • November 2021