Unmanned Vehicle Route Verification Using Expected Traveling States

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Solution Overview

Problem

Unmanned vehicles face reduced operational reliability due to discrepancies between road conditions in electronic maps and actual road conditions, leading to inaccuracies in route planning and execution.

Innovation Solution

A method and apparatus for route verification in unmanned vehicles, which involves receiving route information from a cloud server, detecting the vehicle's traveling state, and determining the accuracy of the route by matching it with expected states, with the option to modify the route information based on scene information collected during travel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the unmanned vehicle travels following the planned route based on electronic map, then the route planning efficiency is improved, but the operational reliability deteriorates due to deviation between electronic map road conditions and actual road conditions

Engineering Contradiction:
Improveroute planning efficiencyVSAvoidoperational reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system performs preliminary route verification by comparing electronic map road conditions with actual road conditions before the unmanned vehicle executes the planned route. This advance verification identifies discrepancies between the electronic map and real-world conditions, allowing the system to adjust the route in advance rather than reacting to errors during execution, thus maintaining both planning efficiency and operational reliability

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system establishes a feedback mechanism where the detected traveling state of the unmanned vehicle is continuously compared with expected traveling state information from the electronic map. When deviations are detected, the system feeds this information back to verify route accuracy and trigger route adjustments, creating a closed-loop control system that maintains reliability without sacrificing planning efficiency

Inventive Principle:
Principle #23Feedback

2Measurement precision

If the system verifies route information by comparing detected traveling state with expected traveling state, then the route verification accuracy is improved, but the computational complexity increases

Engineering Contradiction:
Improveroute verification accuracyVSAvoidcomputational complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Instead of verifying the entire route at once, the system applies local quality verification by checking route accuracy segment by segment along the traveling path. The route is divided into multiple road sections, and verification is performed locally at each section by comparing detected traveling state with expected state for that specific segment. This reduces computational complexity at any given moment while maintaining overall verification accuracy

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The verification process is segmented into discrete checking points along the route. The system divides the continuous verification task into discrete segments corresponding to different road sections, verifying route accuracy at each segment rather than processing the entire route as a single complex computation. This segmentation reduces instantaneous computational load while achieving comprehensive verification

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11416005B2Method and apparatus for controlling unmanned vehicle to perform route verification
Publication Date: 2022.08.16 APOLLO INTELLIGENT DRIVING (BEIJING) TECHNOLOGY CO LTD
  • US11416005B2 patent drawing
  • US11416005B2 patent drawing
  • US11416005B2 patent drawing

AI summary

A method and apparatus for controlling an unmanned vehicle to perform route verification are disclosed. A method may include: receiving to-be-verified route information sent by a cloud server in communication connection, the to-be-verified route information including road information and expected traveling state information corresponding to a road section on a road characterized by the road information, and the expected traveling state information being used to characterize an expected traveling state of the unmanned vehicle on the corresponding road section; and performing following verification according to a set period during driving of the unmanned vehicle along the road: detecting a traveling state of the unmanned vehicle; and determining a verification result of the to-be-verified route information, based on a matching relationship between the detected traveling state and an expected traveling state corresponding to a road section of a current location in the to-be-verified route information.