Moving-Object Warning Control Through Pedestrian Risk Grouping

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Solution Overview

Problem

Existing warning systems for vehicles struggle to efficiently manage communication resources when multiple pedestrians are at risk of approaching, often leading to redundant transmissions and potential failures in delivering warnings.

Innovation Solution

A warning control apparatus that groups pedestrians based on position and movement direction, determining risk levels for each group and selectively transmitting warning information to reduce communication load and ensure effective delivery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If warning information is transmitted to each pedestrian individually, then each pedestrian receives a warning, but communication resource usage increases and redundant transmissions occur

Engineering Contradiction:
Improvewarning delivery reliabilityVSAvoidcommunication resource usage
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent groups multiple pedestrians into pedestrian groups based on their positions and movement characteristics. Instead of transmitting separate warning information to each pedestrian, the system transmits a single warning message to each group, thereby reducing communication resource usage while ensuring that all pedestrians in the group receive the warning effectively.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If warning information is transmitted frequently to ensure delivery, then warning delivery reliability improves, but communication load increases and may cause transmission failures

Engineering Contradiction:
Improvewarning delivery reliabilityVSAvoidcommunication efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

By consolidating multiple pedestrians into groups and transmitting a single warning message per group, the system reduces the total number of transmissions required. This approach maintains reliable warning delivery to all pedestrians while decreasing communication load and avoiding transmission failures that would result from excessive individual transmissions.

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If pedestrian positions are monitored individually, then precise position information is obtained, but processing complexity and communication load increase

Engineering Contradiction:
Improvepedestrian position precisionVSAvoidprocessing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system maintains precise position information for each pedestrian but processes this data by grouping pedestrians based on their positions and movement directions. This approach preserves measurement precision while reducing processing complexity by treating grouped pedestrians as a single unit for warning transmission purposes.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent segments pedestrians into distinct groups based on their spatial positions and movement characteristics. This segmentation allows the system to process and manage large numbers of pedestrians more efficiently by handling groups rather than individuals, thereby reducing overall processing complexity while maintaining necessary precision.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12394212B2Warning control apparatus, moving object, warning control method, and computer-readable storage medium
Publication Date: 2025.08.19 HONDA MOTOR CO LTD
  • US12394212B2 patent drawing
  • US12394212B2 patent drawing
  • US12394212B2 patent drawing

AI summary

Provided is a warning control apparatus comprising: an obtainment unit configured to obtain recognition information including position information and a moving direction of each of a plurality of targets present outside a moving object; a classification unit configured to classify the plurality of targets into one or more groups based on the position information and the moving direction of each of the plurality of targets; a risk level determination unit configured to determine, based on position information and a moving direction of the group, a risk level at which each of the one or more groups approaches a moving object; a selection unit configured to select, based on the determined risk level, a plurality of groups to be warned; and a transmission control unit configured to control transmission of warning information including position information of the selected one or more groups.