Parking Lot Vehicle Guidance with Deviation Evacuation Routing

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Solution Overview

Problem

Existing vehicle guidance methods in automated parking lots fail to effectively handle persistent deviations caused by vehicle-specific issues, leading to repeated attempts at correction routes and potential obstruction of subsequent vehicles.

Innovation Solution

A vehicle guidance method and device that determine a travel route, monitor deviations, and provide correction routes; if the vehicle cannot follow the correction route, an evacuation route is calculated with the current position set to the starting position and a predetermined empty location as the target, allowing the vehicle to safely exit and avoid obstructing other vehicles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the system continuously provides correction routes for deviating vehicles, then the vehicle guidance accuracy is improved, but the parking lot operation efficiency deteriorates due to repeated correction attempts obstructing subsequent vehicles

Engineering Contradiction:
Improvevehicle guidance accuracyVSAvoidparking lot operation efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The system applies preliminary anti-action by proactively identifying vehicles that cannot follow correction routes and forcibly evacuating them before they can repeatedly obstruct the parking lot. The monitor determines inability to follow the correction route in advance, and the evacuation route is provided before the vehicle can cause continued disruptions, thus preventing the harmful effect of repeated correction attempts on overall operation efficiency.

Inventive Principle:
Principle #9Preliminary anti-action

2Measurement precision

If the system monitors and corrects vehicle deviations in real-time, then the travel route accuracy is improved, but the system complexity increases due to continuous monitoring and route recalculation

Engineering Contradiction:
Improvetravel route accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs preliminary action by pre-calculating evacuation routes to predetermined locations before they are needed. When a vehicle deviates and cannot follow the correction route, the system has already prepared alternative routes to empty parking spaces, allowing for rapid response without complex real-time route generation. This reduces the computational complexity during critical evacuation scenarios.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If the vehicle is evacuated to a predetermined location, then the parking lot throughput is improved by removing obstructing vehicles, but the original target position allocation efficiency deteriorates due to route changes

Engineering Contradiction:
Improveparking lot throughputVSAvoidroute reassignment time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system applies local quality by designating specific predetermined locations (empty parking spaces) within the parking lot as evacuation destinations. Instead of evacuating vehicles to arbitrary locations outside the parking lot, the system uses local empty spaces that are already part of the parking lot infrastructure. This minimizes the impact on overall route allocation while efficiently removing obstructing vehicles from critical pathways.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11892304B2Vehicle guidance method and vehicle guidance device
Publication Date: 2024.02.06 PANASONIC AUTOMOTIVE SYST CO LTD
  • US11892304B2 patent drawing
  • US11892304B2 patent drawing
  • US11892304B2 patent drawing

AI summary

A controller determines a travel route from a starting position to a target position in a parking lot and transmits information on at least a section in the travel route to a vehicle, and a monitor monitors the vehicle for a deviation from the travel route during autonomous travel of the vehicle in the section by using a vehicle monitoring system outside the vehicle. When a deviation is detected in the monitoring, the controller determines a correction route for correcting the deviation, and transmits the correction route to the vehicle. When the controller determines that the vehicle cannot travel along the correction route, the controller determines an evacuation route with the current position of the vehicle set to the starting position and a predetermined location set to the target position, and transits the evacuation route to the vehicle such that the vehicle travels along the evacuation route.