Autonomous Driving Parameter Control for Positioning Precision Shifts
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Solution Overview
Problem
Current self-driving technologies fail to ensure driving safety as they do not adapt driving parameters to changing external environments, leading to mismatched positioning precision and potential safety risks, especially when transitioning between different road conditions.
Innovation Solution
A terminal device that obtains vehicle external-environment data and initial positioning precision, adjusts the actual positioning precision based on preset environment characteristics, and adjusts the driving parameters accordingly to ensure safe self-driving, prompting manual intervention if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed driving parameter is used based on a single positioning mode, then the system complexity is reduced, but the positioning precision does not match the actual external environment, compromising driving safety
Solution Approach 1:
The patent applies dynamics by making the driving parameters adjustable and adaptive to changing external environments. The terminal device dynamically adjusts driving parameters based on real-time positioning precision and environmental conditions, transforming a static system into a dynamic one that can respond to environmental changes while maintaining driving safety
Solution Approach 2:
The patent implements parameter changes by modifying driving parameters according to positioning precision and external environment characteristics. The terminal device changes parameters such as speed limits, stopping distances, and routing decisions based on the determined positioning precision, allowing the system to adapt to different environmental conditions without increasing structural complexity
2Reliability
If the driving parameter is adjusted according to external environment changes, then the positioning precision matches the driving parameter, but the device complexity increases due to environmental monitoring and parameter adjustment mechanisms
Solution Approach 1:
The terminal device performs multiple functions including environmental monitoring, positioning precision determination, and driving parameter adjustment within a single integrated system. This multi-functionality reduces the need for separate dedicated components for each function, thereby limiting the increase in device complexity while maintaining driving safety
Solution Approach 2:
The patent implements feedback by using the determined positioning precision and environmental characteristics to adjust driving parameters. The terminal device continuously monitors positioning precision, determines environmental characteristics, and feeds this information back to adjust driving parameters, creating a closed-loop system that improves safety without requiring complex open-loop control mechanisms
3Device complexity
If initial positioning precision is used without environmental adjustment, then the device complexity is minimized, but the positioning precision does not reflect actual environmental conditions, reducing measurement accuracy
Solution Approach 1:
The patent applies parameter changes by adjusting the positioning precision value based on environmental characteristics. The terminal device modifies the positioning precision parameter according to detected environmental factors such as road conditions, weather, and geographic features, thereby improving the accuracy of positioning precision representation without adding complex hardware
4Measurement precision
If environmental monitoring is implemented to adjust positioning precision, then the positioning precision accuracy improves, but the device complexity increases due to additional sensors and processing requirements
Solution Approach 1:
The terminal device integrates environmental monitoring capabilities into its existing multi-functional architecture, using the same device to perform positioning, environmental sensing, and parameter adjustment. This approach improves positioning precision accuracy while limiting device complexity by avoiding dedicated separate systems for each function
Data Source
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AI summary
Embodiments of this application disclose a motor vehicle self-driving method and a terminal device. The method includes: obtaining, by a terminal device, vehicle external-environment data of a position of a motor vehicle and initial positioning precision of the motor vehicle; determining, by the terminal device, a target driving parameter of the motor vehicle based on the vehicle external-environment data and the initial positioning precision; and controlling, by the terminal device, the motor vehicle to drive based on the target driving parameter. In the embodiments of this application, the terminal device determines the target driving parameter of the motor vehicle based on the vehicle external-environment data and the initial positioning precision. In this way, the target driving parameter varies with the vehicle external-environment data, and further matches an external environment, thereby improving self-driving safety of the motor vehicle.