avl_time_state.md

@@ -3,6 +3,12 @@
 ```plantuml
 
 @startuml
+participant "Device Time" as SystemTime
+participant "Last saved Time" asLastValidPosition 
+participant "RTC time if RTC available" as RTC 
+participant "GNSS aka GPS time" as GNSS 
+participant "User time" as UserTime 
+
 autonumber
 SystemTime <- LastValidPosition : load last valid time and timestamp not older then build date
 SystemTime <- RTC : load RTC time if time valid flag and timestamp not older then build date