Lane-Level Navigation via Multi-Sensor Fusion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing navigation systems lack the capability to detect movements at a lane-level granularity, leading to inaccuracies in user location and guidance, especially in environments that degrade accuracy and increase costs.
Innovation Solution
A navigation system that includes a detecting sensor for road object detection, a mode determination module to assess travel states, and a sequence module to identify lane-level movements by matching travel sequences to predetermined sequences for precise display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If location information is used to guide the user to a destination, then navigation functionality is provided, but the granularity for detecting movement is too coarse to detect movements within the road
Solution Approach 1:
The patent segments the detection mechanism into multiple independent sensors (accelerometer, gyroscope, magnetometer, barometer, GPS receiver) that each measure different physical quantities. By combining these segmented detection capabilities, the system achieves fine-grained lane-level movement detection without requiring a single complex detection device.
2Reliability
If existing detection methods are used, then navigation guidance is provided, but the accuracy in locating the user degrades in certain circumstances and environments
Solution Approach 1:
The patent merges multiple independent detection mechanisms into a unified navigation system. The accelerometer detects linear acceleration, the gyroscope detects angular velocity, the magnetometer detects magnetic field orientation, the barometer detects altitude changes, and the GPS receiver provides satellite-based positioning. By merging these complementary detection capabilities, the system maintains reliable user location accuracy across various environmental conditions where individual sensors might fail or degrade.
3Measurement precision
If lane-level movement detection is implemented, then navigation accuracy is improved, but the cost and complexity of the system increases
Solution Approach 1:
The patent implements a multi-functional detection system where each sensor serves multiple purposes. The accelerometer not only detects linear acceleration for movement detection but also contributes to determining device orientation and detecting road vibrations. The gyroscope provides angular velocity data for orientation tracking and complements the magnetometer in determining device attitude. This universal utilization of sensors achieves lane-level navigation accuracy while managing system complexity through efficient sensor sharing.
Data Source
AI summary
A method of operation of a navigation system includes: determining a road object detection for monitoring a movement of a device; determining a travel state based on the road object detection; identifying a travel sequence involving the travel state; and determining a condition inducing movement based on matching the travel sequence to a predetermined sequence for displaying on the device.