Event Data Recording for Vehicles

• US 20140058583A1
• Filed: 12/30/2011
• Published: 02/27/2014
• Est. Priority Date: 12/30/2011
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Kesavan, Vijay Sarathi, Narjala, Ranjit S., Guo, Xiangang, Lortz, Victor B., Rangarajan, Anand P., Rathi, Somya
• Granted Patent: US 8,965,626 B2
• Time in Patent Office: Days
• US Class Current: 701/1
• CPC Class Codes: B62D 41/00 Fittings for identifying vehicles in case of collision; Fittings for marking or recording collision areas
• CPC Class Codes: G01D 9/005 Solid-state data loggers
• CPC Class Codes: G06F 7/00 Methods or arrangements for processing data by operating upon the order or content of the data handled logic circuits H03K19/00
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

In accordance with some embodiments, in response to the detection of a particular event, an event data recorder may enter a secure mode. In the secure mode, data from various peripherals is collected over a secure channel and stored in a secure memory within the event data recorder. That data may subsequently be read out under secure conditions with an assurance of reliability while the system is in a secure mode, it may continue to collect data in a non-secure mode in parallel.

Claims

1. A method comprising:

detecting a triggering event; and

in response to the triggering event, recording event data from a sensor in a secure mode over a secure channel using a computer processor.

2. The method of claim 1 including continuing to process sensor data in parallel over a non-secure channel during the secure mode.

3. The method of claim 1 including implementing an open system.

4. The method of claim 1 including separately switching one of a plurality of peripherals to a secure mode.

5. The method of claim 1 including using a hardware device to control event data recording.

6. The method of claim 5 including using one controller to run said event data recording and another controller to run applications other than event data recorder applications.

7. The method of claim 5 including enabling said hardware device to send a message to peripheral device to trigger the secure mode.

8. The method of claim 7 including causing said peripheral device to send data to said hardware device in a secure mode in response to said message.

9. The method of claim 1 further including in response to detecting a triggering event, collecting data for a period before the event from a buffer.

10. The method of claim 9 including collecting data before and after the event.

11. A non-transitory computer readable medium storing instructions to:

detect a triggering event; and

in response to the triggering event, collect event data from a sensor in a secure mode over a secure channel using a computer processor.

12. The medium of claim 11 further storing instructions to continue to process sensor data in parallel over a non-secure channel during the secure mode.

13. The medium of claim 11 further storing instructions to implement an open system.

14. The medium of claim 11 further storing instructions to separately switch one of a plurality of peripherals to a secure mode.

15. The medium of claim 11 further storing instructions to use a hardware device to control event data recording.

16. The medium of claim 15 further storing instructions to use one controller to run said event data recording and another controller to run applications other than event data recorder applications.

17. The medium of claim 15 further storing instructions to enable said hardware device to send a message to peripheral device to trigger the secure mode.

18. The medium of claim 17 further storing instructions to cause said peripheral device to send data to said hardware device in a secure mode in response to said message.

19. The medium of claim 11 further storing instructions in response to detecting a triggering event, collect data for a period before the event from a buffer.

20. The medium of claim 19 further storing instructions to collect data before and after the event.

21. An apparatus comprising:

a computer processor to detect a triggering event and in response to the triggering event, record event data from a sensor in a secure mode over a secure channel using said computer processor; and

a storage, coupled to said processor, to store said data.

22. The apparatus of claim 21, said processor to process sensor data in parallel over a non-secure channel during the secure mode.

23. The apparatus of claim 21, said processor to implement an open system.

24. The apparatus of claim 21, said processor to separately switch one of a plurality of peripherals to a secure mode.

25. The apparatus of claim 21, said processor to use a hardware device to control event data recording.

26. The apparatus of claim 25 including a controller to run said event data recording and another controller to run applications other than event data recorder applications.

27. The apparatus of claim 25, said processor to send a message to peripheral device to trigger the secure mode.

28. The apparatus of claim 27, said processor to cause said peripheral device to send data to said hardware device in a secure mode in response to said message.

29. The apparatus of claim 21, said processor to collect data for a period before the event from a buffer.

30. The apparatus of claim 29, said processor to collect data before and after the event.