GNSS 诊断与时间更新
flowchart TD
Lease --> Snapshot
Snapshot --> State{"status"}
State -- no data --> Explain
State -- valid --> Sky["sky plot + fix"]
Snapshot --> RMC{"valid time?"}
RMC -- 是 --> Clock["update authority"]
RMC -- 否 --> Keepflowchart TD
Lease --> Snapshot
Snapshot --> State{"status"}
State -- no data --> Explain
State -- valid --> Sky["sky plot + fix"]
Snapshot --> RMC{"valid time?"}
RMC -- 是 --> Clock["update authority"]
RMC -- 否 --> Keep