Concept Overview

KeywordExplanation
Activation CodeA code received after purchasing FlightHub 2 On-Premises, used to create or upgrade a License on the DJI Developer website. A trial activation code is also available once a trial application is approved.
Server Fingerprint FileA file used to identify a server and apply for a License. When installing a License, the server fingerprint must match the fingerprint bound to the License; otherwise, authorization will fail.
LicenseUsed to verify that the software's operating environment is authorized. A License can be created on the DJI Developer website using an activation code and a server fingerprint file. It must be installed before deploying FlightHub 2 On-Premises.
Terra Model ReconstructionAn on-premises model reconstruction service in FlightHub 2 On-Premises, based on the DJI Terra model reconstruction engine.
MBTilesA format that packages map tiles into a single file for easy distribution and use.
XYZ TilesA method of organizing map tiles using X, Y, and Z indices. Z represents the zoom level, while X and Y represent the horizontal and vertical tile indices.
K3sA lightweight Kubernetes distribution that provides the runtime foundation for FlightHub 2 On-Premises clusters. It is deployed with the installation package and requires no separate installation or maintenance.
Management NodeAlso called a Management Server. It handles control tasks such as cluster scheduling and management.
Worker NodeAlso called a Worker Server. It runs application services.
Authorization NodeAlso called an Authorization Server. It is used to install Licenses for DJI FlightHub 2 and Value-Added Services. A cluster supports only 1 Authorization Node. Failure of this node makes the entire cluster unavailable, so ensure that it operates reliably.
NTP ServiceA Network Time Protocol service that synchronizes the system time of devices and servers. DJI FlightHub 2 deploys this service automatically, with no additional configuration required.
EMQXMessaging middleware that supports multiple IoT protocols and provides real-time messaging between devices.
Self-Signed CertificateAn SSL/TLS certificate issued by an organization or individual for encrypted communication. Since it is not issued by a recognized certificate authority, clients may need to trust it manually.