Vehicle Warning Sound Control for Accurate Object Direction Recognition
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Solution Overview
Problem
Existing technologies for localizing warning sounds in the direction of objects around a vehicle lack accuracy in recognizing the presence and position of these objects.
Innovation Solution
An information processing device and system that includes detection processing for objects on the periphery of a vehicle, controlling the feature quantity and position of a warning sound based on the detected object's position, using sensors like cameras, radars, and LiDARs to enhance recognition accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sound image localization control is used to localize warning sound in the direction of objects, then the driver can recognize the direction of objects, but the accuracy of recognition is insufficient
Solution Approach 1:
The patent changes multiple parameters of the warning sound including position of sound image, volume, pitch, and timbre based on object characteristics. This allows accurate recognition of object direction and attributes by mapping different sound parameters to different object positions and types, resolving the contradiction between recognition accuracy and system complexity through comprehensive parameter optimization rather than simple localization.
2Reliability
If detection processing is performed for objects on the periphery, then the presence of objects can be recognized, but the accuracy and reliability of detection is insufficient
Solution Approach 1:
The patent divides the periphery space into multiple regions (front, rear, left, right sides with near/far zones) and assigns different detection priorities and sound output strategies to each region. This segmentation approach improves detection reliability by focusing resources on critical areas while reducing the overall complexity of comprehensive periphery monitoring.
Solution Approach 2:
The patent introduces sound image positioning as an intermediary between object detection and driver awareness. By mapping detected object positions to corresponding sound image positions in the audio field, the system enhances the reliability of peripheral object recognition without requiring direct visual confirmation from the driver.
3Measurement precision
If warning sound is output to indicate object presence, then the driver becomes aware of objects, but the accuracy of direction recognition is insufficient
Solution Approach 1:
The patent applies different sound characteristics to different spatial regions and object types. Each region (front, rear, left, right) and object category receives customized sound parameters including position, volume, pitch, and timbre. This local quality approach ensures that the warning sound accurately reflects the specific direction and nature of the object, improving direction recognition accuracy while preventing driver confusion through consistent and context-appropriate audio cues.
Data Source
AI summary
The present technology relates to an information processing device, an information processing method, a program, a mobile device, and an information processing system that can improve accuracy of recognition of a direction in which an object is present on the periphery of a mobile device such as a vehicle.An information processing device includes a recognizing section configured to perform detection processing for an object on a periphery of a mobile device, and a warning sound control section configured to control a feature quantity of a first warning sound, the first warning sound indicating presence of the object, and a position of a sound image of the first warning sound, according to a position of the detected object. The present technology is applicable to, for example, mobile devices such as vehicles.