ITS Service Station Grouping Road Users for Computational Efficiency

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Solution Overview

Problem

In Intelligent Transportation Systems (ITS), processing information from a large number of road users, especially in crowded areas, becomes computationally complex and inefficient as each individual road user is considered separately, which can compromise safety and efficiency.

Innovation Solution

An ITS service station that receives information from sensors on road users, determines subsets of road users in mutual proximity based on geographical positions, distances, headings, and speeds, and transmits a service message indicative of these subsets, allowing ITS stations to consider them as a single entity, thereby reducing computational complexity and enhancing efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If each road user is considered individually in ITS stations, then comprehensive safety monitoring is achieved, but computational complexity increases significantly

Engineering Contradiction:
Improvesafety monitoringVSAvoidcomputational complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple road users into a single group when they satisfy mutual proximity criteria. The service station determines whether a subset of road users meets a predetermined criterion of mutual proximity based on their geographical positions, and transmits a service message indicating this subset. This allows receiving ITS stations to consider the entire subset as a single entity, significantly reducing computational complexity while maintaining safety monitoring effectiveness.

Inventive Principle:
Principle #5Merging (Combining)

2Loss of information

If individual road user information is processed separately, then detailed safety information is available, but processing efficiency decreases

Engineering Contradiction:
Improvesafety informationVSAvoidprocessing efficiency
Core Design Contradiction:
Loss of informationVSProductivity

Solution Approach 1:

The patent combines processing of geographically proximate road users into a single group operation. By determining subsets based on mutual proximity criteria and transmitting these as unified service messages, the system maintains comprehensive safety information about all road users while dramatically improving processing efficiency through batch handling rather than individual processing.

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If more sensors are deployed to detect all road users, then detection coverage improves, but system complexity and cost increase

Engineering Contradiction:
Improvedetection coverageVSAvoidsensor system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a service station as an intermediary between sensors and ITS stations. The service station receives information from one or more sensors, determines subsets of road users based on mutual proximity, and transmits service messages indicating these subsets. This intermediary layer simplifies the overall system architecture by centralizing the complex subset determination logic, reducing the burden on individual ITS stations and sensors.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11475764B2Service station for an intelligent transportation system
Publication Date: 2022.10.18 KAPSCH TRAFFICCOM AG
  • US11475764B2 patent drawing
  • US11475764B2 patent drawing

AI summary

The disclosed subject matter relates to an Intelligent Transportation System (ITS) service station, comprising: a receiver configured to receive, from one or more sensors, information on a set of road users perceived by the sensors, wherein said road user information includes, for each road user in the set, a respective geographical position determined by the sensors; a controller connected to the receiver and configured to determine, on the basis of said geographical positions, whether a subset of road users in said set meets a predetermined criterion of mutual proximity; and a transmitter connected to the controller and configured to transmit, when said subset comprises two or more road users, a service message indicative of said subset.