Vehicle Navigation Response to Broken or Uncalibrated Sensors
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Solution Overview
Problem
Autonomous vehicles face safety concerns due to uncalibrated or broken sensors, which can compromise navigation accuracy and lead to potential accidents, as existing calibration methods are not comprehensive in addressing all types of sensor damage.
Innovation Solution
A vehicle system that includes sensors, processors, and memory to detect broken or uncalibrated sensors, limit vehicle motion, and obtain missing data from other sensors to ensure safe driving actions, by comparing current and historical sensor parameters and restricting vehicle movements based on the extent of damage or miscalibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If calibration panels are installed in select areas to recalibrate sensors, then sensor calibration capability is improved, but coverage and effectiveness are limited because not every uncalibrated sensor can be recalibrated and broken sensors cannot be fixed
Solution Approach 1:
The system performs preliminary detection of sensor status (calibrated vs. broken) before navigation operations. By detecting sensor failures in advance and comparing current sensor data with historical data, the system can proactively limit vehicle motion or obtain missing data from other sensors, preventing navigation errors before they occur.
Solution Approach 2:
The system introduces an intermediary detection and response mechanism between the sensor and navigation system. When a sensor is detected as broken or uncalibrated, the intermediary system limits vehicle motion or obtains compensating data from other sensors, acting as a mediator to ensure navigation safety despite sensor failures.
2Productivity
If the vehicle continues normal operation with broken or uncalibrated sensors, then productivity is maintained, but safety and navigation accuracy are compromised
Solution Approach 1:
The system dynamically adjusts vehicle operation based on sensor status. When sensors are functional, the vehicle operates with full freedom. When broken or uncalibrated sensors are detected, the system dynamically limits vehicle motion or obtains missing data from other sensors, creating a flexible response that maintains safety while preserving operational continuity when possible.
Solution Approach 2:
The system changes operational parameters (motion limits, data acquisition strategies) based on sensor status. By comparing current sensor parameters with historical parameters and detecting deviations, the system adjusts navigation parameters dynamically to maintain safety while allowing continued operation under modified conditions.
3Reliability
If the system limits vehicle motion when sensors are broken or uncalibrated, then safety is improved, but operational flexibility and driving options are reduced
Solution Approach 1:
The system applies partial limitation of vehicle motion rather than complete restriction. By obtaining missing data from other sensors when possible, the system partially compensates for broken sensors, allowing more driving options than would be available with complete sensor failure while still maintaining enhanced safety through selective motion limitations.
Data Source
AI summary
Provided herein is a system and method for providing a vehicle navigation in response to broken or uncalibrated vehicle sensors. The system comprises a sensor to capture data, one or more processors, and a memory storing instructions that cause the system to determine whether the sensor is broken or uncalibrated based on the data, and to limit a range of motion of the vehicle when the sensor is determined to be broken or uncalibrated. The limiting a range of motion of the vehicle includes limiting a number of driving options for the vehicle when the sensor is broken.