Event data recording for vehicles
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.
1. A method comprising:
detecting a triggering event;
in response to the triggering event, recording event data from a sensor in a secure mode over a secure channel using a computer processor;
using a hardware device to control event data recording; and
enabling said hardware device to send a message to peripheral device to trigger the secure mode.
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 one controller to run said event data recording and another controller to run applications other than event data recorder applications.
6. The method of claim 1 including causing said peripheral device to send data to said hardware device in a secure mode in response to said message.
7. 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.
8. The method of claim 7 including collecting data before and after the event.
9. A non-transitory computer readable medium storing instructions to:
detect a triggering event;
in response to the triggering event, collect event data from a sensor in a secure mode over a secure channel using a computer processor;
use a hardware device to control even data recording; and
enable said hardware device to send a message to peripheral device to trigger the secure mode.
10. The medium of claim 9 further storing instructions to continue to process sensor data in parallel over a non-secure channel during the secure mode.
11. The medium of claim 9 further storing instructions to implement an open system.
12. The medium of claim 9 further storing instructions to separately switch one of a plurality of peripherals to a secure mode.
13. The medium of claim 9 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.
14. The medium of claim 9 further storing instructions to cause said peripheral device to send data to said hardware device in a secure mode in response to said message.
15. The medium of claim 9 further storing instructions in response to detecting a triggering event, collect data for a period before the event from a buffer.
16. The medium of claim 15 further storing instructions to collect data before and after the event.
17. An apparatus comprising:
a computer processor to detect a triggering event, in response to the triggering event, record event data from a sensor in a secure mode over a secure channel using said computer processor, use a hardware device to control event data recording, and send a message to peripheral device to trigger the secure mode; and
a storage, coupled to said processor, to store said data.
18. The apparatus of claim 17 , said processor to process sensor data in parallel over a non-secure channel during the secure mode.
19. The apparatus of claim 17 , said processor to implement an open system.
20. The apparatus of claim 17 , said processor to separately switch one of a plurality of peripherals to a secure mode.
21. The apparatus of claim 17 including a controller to run said event data recording and another controller to run applications other than event data recorder applications.
22. The apparatus of claim 17 , said processor to cause said peripheral device to send data to said hardware device in a secure mode in response to said message.
23. The apparatus of claim 17 , said processor to collect data for a period before the event from a buffer.
24. The apparatus of claim 23 , said processor to collect data before and after the event.