Intersection Vehicle Control via Segmented Zones

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Solution Overview

Problem

Existing systems for controlling vehicles at intersections are prone to communication delays and congestion, which can lead to safety issues due to the lack of effective handling of network communication mishaps, particularly in semi or fully autonomous vehicle environments.

Innovation Solution

A computer-implemented method and system that divides an intersection into a crossing zone and a registration zone, where vehicles request permission to cross from the registration zone and are ordered based on the time of entry, with a server transmitting instructions to allow vehicles to pass the crossing zone one at a time, incorporating timing information and dynamic order updates to mitigate communication delays and ensure safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a remote server broadcasts synchronization signals to all vehicles entering an intersection area, then vehicle control through the intersection is coordinated, but network communication delays and mishaps can cause congestion and safety issues

Engineering Contradiction:
ImprovesafetyVSAvoidcommunication delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system divides the intersection into a registration zone and a crossing zone. Vehicles must enter the registration zone first and receive permission before entering the crossing zone. This preliminary action in the registration zone allows the server to establish communication and determine vehicle order before the actual crossing, ensuring that even if communication delays occur during crossing, the vehicle sequence has already been predetermined and safety is maintained.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If multiple vehicles are allowed to cross the intersection simultaneously, then productivity is improved, but safety is compromised due to potential collisions

Engineering Contradiction:
Improveintersection throughputVSAvoidcollision avoidance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The intersection is segmented into two distinct zones: a registration zone where vehicles enter and receive permission, and a crossing zone where vehicles actually cross. This segmentation allows the server to control vehicle entry into the crossing zone one at a time based on registration order, ensuring safety while maintaining efficient throughput by preventing complete stops.

Inventive Principle:
Principle #1Segmentation

3Measurement precision

If the server waits for all vehicles to register before assigning crossing order, then accurate ordering is achieved, but congestion increases at the registration zone

Engineering Contradiction:
Improveentry time recordingVSAvoidregistration zone throughput
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

Vehicles perform the registration action preliminarily before crossing. The server records entry times and determines crossing order during the registration phase, but vehicles do not need to wait for final order assignment before proceeding to the crossing zone boundary. This preliminary determination of order maintains measurement precision while improving throughput by allowing continuous flow.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11990033B2Method for controlling vehicles
Publication Date: 2024.05.21 CPAC SYST
  • US11990033B2 patent drawing
  • US11990033B2 patent drawing

AI summary

The present disclosure generally relates to a computer implemented method for controlling vehicles, specifically in relation to a plurality of vehicles passing through an intersection. The present disclosure also relates to a corresponding management server and computer program product.