CPC G07C 5/085 (2013.01) [H03M 7/30 (2013.01); H03M 7/70 (2013.01)] | 20 Claims |
1. A system, comprising:
a controller; and
a data recording unit coupled to the controller, the data recording unit comprising:
a volatile memory configured to hold raw vehicle sensor data collected from vehicle sensors;
a data compression unit configured to:
receive the raw vehicle sensor data; and
output a compressed copy of the raw vehicle sensor data;
a non-volatile memory configured to receive and hold the compressed copy of the raw vehicle sensor data; and
a non-volatile storage coupled to the volatile memory and the non-volatile memory,
wherein in response to an event, the controller is configured to move stored data in the volatile memory and the non-volatile memory into the non-volatile storage.
|