Vehicle Dispatch Boarding Location Determination Using Recognition Difficulty

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Solution Overview

Problem

In station-free vehicle dispatch services, users struggle to recognize boarding locations due to the absence of physical landmarks, leading to incorrect arrival at designated pick-up or drop-off points.

Innovation Solution

A vehicle dispatch service boarding location determination method that uses a vehicle dispatch information data server to calculate boarding location candidates based on position information and map data, prioritizing recognition difficulty by considering visible targets and their positional relationships, to select a boarding location with low recognition difficulty.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If station-free vehicle dispatch service is implemented allowing passengers to be picked up and dropped off anywhere, then service flexibility and coverage are improved, but user ability to recognize and correctly arrive at boarding location deteriorates due to absence of physical landmarks

Engineering Contradiction:
Improveservice flexibilityVSAvoiduser recognition of boarding location
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent introduces peripheral targets (landmarks, POIs) as intermediary reference objects between the boarding location and the user. These peripheral targets serve as mediators that users can visually identify and use for navigation to the boarding location, solving the recognition problem in station-free services without limiting service flexibility

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent shifts from relying on the boarding location itself as the reference (one-dimensional point) to using peripheral targets in the surrounding environment (two-dimensional area with visual characteristics). This dimensional shift allows users to recognize locations through familiar landmarks rather than abstract coordinates

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Device complexity

If boarding location is determined solely by user request position without considering recognition difficulty, then system complexity is reduced, but user arrival accuracy at boarding location deteriorates

Engineering Contradiction:
Improvesystem complexityVSAvoiduser arrival accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The system performs preliminary evaluation of boarding location candidates by calculating recognition difficulty indices before final selection. This preliminary action assesses peripheral target information and positional relationships to predict user recognition ease, ensuring accurate arrival before the user even begins navigation

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces simple geometric proximity calculations with a more sophisticated recognition difficulty evaluation system that considers semantic information about peripheral targets, their visibility, and spatial relationships, substituting basic mechanical positioning with intelligent assessment

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If multiple boarding location candidates are evaluated based on peripheral target information, then user arrival accuracy is improved, but calculation time and processing load increase

Engineering Contradiction:
Improveboarding location determination accuracyVSAvoidlocation determination time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system evaluates multiple boarding location candidates partially by considering only the most relevant peripheral targets and key positional relationships rather than exhaustively analyzing all possible factors. This partial evaluation maintains sufficient accuracy while reducing computational burden and time consumption

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS11928619B2Vehicle dispatch service boarding location determination method, and vehicle dispatch service boarding location determination device
Publication Date: 2024.03.12 NISSAN MOTOR CO LTD
  • US11928619B2 patent drawing
  • US11928619B2 patent drawing
  • US11928619B2 patent drawing

AI summary

A vehicle dispatch service boarding location determination method uses a vehicle dispatch information data server and a terminal to determine a boarding location for a dispatched vehicle based on a vehicle dispatch request from the terminal. When there is a vehicle dispatch request, position information of a vehicle dispatch request point is acquired. Boarding location candidates present in a periphery of the vehicle dispatch request point are calculated based on the position information point and map information. A boarding location recognition difficulty, which is a difficulty for the user in recognizing the boarding location candidate as a boarding location, is calculated for each of the boarding location candidates. A boarding location candidate for which the boarding location recognition difficulty is low among the boarding location candidates is determined as the boarding location where the user will be picked up by the dispatched vehicle.