US Patent Application 18326984. BLACK BOX DATA RECORDER FOR AUTONOMOUS DRIVING VEHICLE simplified abstract
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BLACK BOX DATA RECORDER FOR AUTONOMOUS DRIVING VEHICLE
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BLACK BOX DATA RECORDER FOR AUTONOMOUS DRIVING VEHICLE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18326984 titled 'BLACK BOX DATA RECORDER FOR AUTONOMOUS DRIVING VEHICLE
Simplified Explanation
The abstract describes an improved black box data recorder for autonomous driving vehicles (AVD).
- The black box has two cyclic buffers to record vehicle sensor data.
- The first cyclic buffer records raw sensor data on a volatile memory.
- The second cyclic buffer records the same sensor data as compressed data on a non-volatile memory.
- In the event of a collision or near collision, the buffers are flushed into a non-volatile storage for retrieval.
- The raw sensor data can be accessed from the non-volatile storage as long as there is no power interruption.
- If a power interruption occurs, the raw sensor data in the volatile memory will be lost, but the compressed data in the non-volatile memory will still be accessible.
Original Abstract Submitted
An improved black box data recorder for use with autonomous driving vehicles (AVD). In one embodiment, two cyclic buffers are provided to record vehicle sensors data. A first cyclic buffer records raw vehicle sensor data on a volatile memory, while a second cyclic buffer records the same vehicle sensor data, as compressed data, on a non-volatile memory. In a case of a collision or near collision, in one embodiment the buffers are flushed into a non-volatile (NV) storage for retrieval. As long as there is no power interruption, the raw vehicle sensor data will be accessible from the NV storage. If a power interruption occurs, the raw vehicle sensor data held in the volatile memory of the first cyclic buffer will be lost and only the compressed form of the vehicle sensor data from the second cyclic buffer will survive and be accessible.