US 12,135,782 B2
System, method, and program for analyzing vehicle system logs
Mingyan Li, Bellevue, WA (US); Su-Nei Nina Shen, Mercer Island, WA (US); and David S. Mier, Mercer Island, WA (US)
Assigned to The Boeing Company, Arlington, VA (US)
Filed by The Boeing Company, Chicago, IL (US)
Filed on May 27, 2022, as Appl. No. 17/826,285.
Prior Publication US 2023/0385405 A1, Nov. 30, 2023
Int. Cl. G06F 21/55 (2013.01); G06F 16/28 (2019.01)
CPC G06F 21/552 (2013.01) [G06F 16/285 (2019.01); G06F 2221/034 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for analyzing vehicle system logs, the system comprising:
a processor; and
a storage device comprising instructions, execution of which causes the processor to:
connect with an onboard system of a vehicle, wherein the onboard system is connectable to a network;
collect an activity log generated by the onboard system, wherein the activity log comprises log messages indicative of an activity of the onboard system;
extract a feature list from the activity log, wherein the feature list comprises features and each one of the features comprises a numerical feature identification and at least one field of text selected from a corresponding one of the log messages;
generate a window within the feature list that includes a batch of the features;
search for a set of features from the batch of the features in the window;
extract an episode from the feature list, wherein the episode comprises the set of features selected from the window and is indicative of the activity of the onboard system;
classify the episode with an episode classification, wherein the episode classification comprises a number of times each one of the features occurs in the set of features and is indicative of an event that occurred during the activity; and
generate a recommended action based on a comparison of an occurrence of the episode classification to a predetermined occurrence threshold.