Autonomous Driving Control Fallback for Sensor Data Reception Errors
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Solution Overview
Problem
Autonomous vehicles face safety issues such as termination or sudden braking due to failures in receiving pre-processed sensor data, which can occur when the sensor's computing capability is compromised.
Innovation Solution
An electronic apparatus that includes a communication interface, memory, and processor, capable of receiving first processed data from a sensor device and, upon identifying an error, performs first processing on raw data received from the sensor device using a second program, allowing it to continue autonomous driving functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the system relies on pre-processed sensor data for autonomous driving, then processing efficiency is improved, but system reliability deteriorates when sensor computing fails
Solution Approach 1:
The system performs preliminary action by downloading and storing the second program (raw data processing capability) in advance within the electronic apparatus. When sensor computing fails, this pre-stored program enables immediate switching to raw data processing without requiring external intervention, thus maintaining autonomous driving functionality and improving reliability while preserving processing efficiency through the primary pre-processed data path.
2Device complexity
If the system uses sensor pre-processing for autonomous driving, then device complexity is reduced, but adaptability deteriorates when sensor computation fails
Solution Approach 1:
The electronic apparatus achieves multi-functionality by incorporating dual processing capabilities: it can process both pre-processed sensor data (first processed data) and raw sensor data (raw data) using different programs (first program and second program). This universal processing capability allows the system to adapt to different operational conditions - using the simpler pre-processed data path under normal conditions, and switching to raw data processing when sensor computing fails, thus improving adaptability without significantly increasing device complexity.
3Reliability
If the system monitors for sensor errors and switches to raw data processing, then reliability is improved, but device complexity increases
Solution Approach 1:
The system implements feedback by continuously monitoring whether first processed data is received from the sensor device within a threshold time period. When data is not received within the expected timeframe, the processor identifies this as an error condition and triggers a switch to the second program for raw data processing. This feedback mechanism ensures reliable autonomous driving continuity by detecting sensor computing failures and automatically adapting, while keeping the control logic complexity manageable through clear threshold-based decision criteria.
Data Source
AI summary
An electronic device is disclosed. The electronic device comprises a communication interface, a memory in which a program for performing an autonomous driving function is stored, and a processor which performs second processing for first processed data on the basis of a first program stored in the memory, when the first processed data is received from an external sensor device through the communication interface, and which performs, on the basis of a second program stored in the memory, first processing for raw data received from the external sensor device, and then performs the second processing on the basis of the first program, when the occurrence of an error in the reception of the data is identified.