Autonomous Driving Sensor Cross-Check for Real-Time Failure Detection
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Solution Overview
Problem
Autonomous driving vehicles face challenges in detecting sensor failures due to external factors such as shocks, sensor offsets, incorrect parameters, or communication errors, making it difficult to determine the normal operation of sensors in real time.
Innovation Solution
An autonomous driving control apparatus that performs cross-checks by transmitting and receiving detection results from other vehicles to verify the operating state of sensors, using a communication device, sensor device, and controller to identify sensor state through mutual verification with surrounding vehicles and user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single sensor device is used for detection, then the device complexity is reduced, but the measurement precision and reliability of sensor state identification deteriorate
Solution Approach 1:
The patent combines sensor data from multiple vehicles (host vehicle and surrounding vehicles) to perform cross-check verification. By merging detection results from multiple sensor devices across different vehicles, the system achieves higher measurement precision in identifying sensor states without significantly increasing individual device complexity
Solution Approach 2:
The patent introduces communication devices and controllers as intermediaries to facilitate data exchange and cross-verification between vehicles. These intermediary components enable the sharing of sensor detection results, allowing vehicles to verify each other's sensor states and improve overall measurement precision through collaborative verification
2Speed
If sensor data is used for real-time monitoring, then the speed of detection is improved, but the reliability of sensor failure detection deteriorates due to external factors
Solution Approach 1:
The patent implements a feedback mechanism where sensor detection results are transmitted to surrounding vehicles, which then verify the data and send back confirmation or correction information. This feedback loop allows the system to maintain real-time detection speed while improving reliability through cross-validation, as erroneous detections can be identified and corrected through the feedback from other vehicles
Solution Approach 2:
The patent performs preliminary cross-check verification by having surrounding vehicles ready to verify sensor data before critical failures occur. By maintaining continuous communication and verification readiness, the system prepares in advance to detect and respond to sensor failures, improving both the speed and reliability of failure detection
Data Source
AI summary
An embodiment autonomous driving control apparatus includes a controller operatively connected to a communication device, a sensor device, and a memory storing instructions, wherein the controller is configured to execute the instructions stored in the memory to cause the autonomous driving control apparatus to transmit, using the communication device, a cross-check request for a detection vehicle or a host vehicle to another vehicle in response to detection of the detection vehicle satisfying a specified condition determined by the sensor device, identify an operating state of the sensor device based on a host vehicle existence response or a host vehicle absence response among responses received from the other vehicle in response to the cross-check request, and determine whether the detection vehicle is present based on a detection vehicle existence response or a detection vehicle absence response among the responses received from the other vehicle in response to the cross-check request.