Vehicle Occupant Alerts Based on Predicted Object Trajectories

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Solution Overview

Problem

Existing systems fail to optimally notify vehicle occupants about the predicted future trajectory of surrounding objects, leading to inadequate warnings.

Innovation Solution

An information processing device that includes a recognition unit to identify objects, a prediction unit to forecast their trajectories, and a notification control unit to adjust warnings based on whether the object is approaching from behind or passing by the side, using voice and display outputs tailored to the vehicle type.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a warning device issues a warning based on relative traveling speed thresholds, then the notification is simple and quick to implement, but the notification is not optimal according to the predicted future trajectory of surrounding objects

Engineering Contradiction:

Improvenotification effectivenessVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary action by predicting the future trajectory of surrounding objects before issuing warnings. The prediction unit calculates where objects will be in the future, and the notification control unit uses this predicted information to determine appropriate warning strategies, rather than merely reacting to current relative speed thresholds.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system applies dynamics by changing notification modes dynamically based on predicted trajectory. The notification control unit selects different notification modes (voice output, display, both) depending on the predicted future position and movement of surrounding objects, making the notification system adaptive rather than static.

Inventive Principle:

Principle #15Dynamics

2Reliability

If the notification device provides detailed trajectory-based warnings, then the notification effectiveness is improved, but the processing time and computational load increase

Engineering Contradiction:

Improvenotification accuracyVSAvoidprocessing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system applies partial action by selectively providing detailed trajectory-based warnings only when necessary. The notification control unit determines the appropriate notification mode based on the predicted trajectory, using full prediction capabilities when objects are on collision courses while potentially using simpler notifications for objects that will naturally pass by, thus balancing accuracy with processing efficiency.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20250360938A1Information processing device, information processing method, and program

Publication Date: 2025.11.27 HONDA MOTOR CO LTD

AI summary

There is provided an information processing device including a recognition unit that recognizes an object included in image data obtained by capturing an image of a vicinity of a mobile body, a prediction unit that predicts a future trajectory of the object, and a notification control unit that causes a notification device to notify a vehicle occupant in the mobile body of the presence of the object based on the future trajectory of the object, in which the notification control unit changes a mode of notification by the notification device between a case where the object is predicted to approach the mobile body from behind the mobile body and a case where the object is predicted to pass by a side of the mobile body.