Driver Emotion Assessment via Driving Behavior Analysis
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Solution Overview
Problem
Existing methods for assessing a driver's emotions while driving are unreliable due to neutral facial expressions, external factors affecting facial capture, and the need for complex sensors that can disrupt the driving experience.
Innovation Solution
A system that uses a sensor apparatus, including a GPS sensor, to collect motor vehicle and driving data, which is then evaluated by an emotion determination unit to assess the driver's emotions without direct facial capture, optionally supplemented by camera data for confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a camera is used to capture the driver's facial expressions, then emotional state assessment is possible, but reliability deteriorates due to neutral expressions and external factors like illumination
Solution Approach 1:
The patent introduces driving behavior data as an intermediary indicator to indirectly assess driver emotions. Instead of directly capturing facial expressions, the system monitors accelerator pedal position, steering wheel angle, and other driving parameters that reflect emotional states. This mediator approach bypasses the reliability issues of direct facial capture while maintaining assessment capability.
Solution Approach 2:
The patent replaces the optical/mechanical facial capture system with an electronic data collection system that monitors driving behavior through sensors. By substituting the mechanical camera-based approach with electronic monitoring of driving parameters, the system achieves more reliable emotion assessment不受 lighting and facial expression limitations.
2Reliability
If separate sensors for heart rate, electrodermal activity, or brain activity are used, then emotion determination is possible, but device complexity and intrusiveness increase
Solution Approach 1:
The patent makes existing vehicle sensors serve multiple functions. Sensors originally designed for monitoring driving behavior and vehicle operation are repurposed to also assess driver emotions. This multi-functionality approach eliminates the need for separate emotion-specific sensors, reducing device complexity while maintaining assessment capability.
Solution Approach 2:
The system uses the vehicle's existing sensor infrastructure to serve the additional function of emotion detection. Rather than adding dedicated sensors, the system leverages data already being collected for other purposes, allowing the vehicle system to serve itself for multiple measurement needs without additional hardware.
3Reliability
If microphone device evaluation is used to assess emotions from speech, then emotion detection is possible, but the driver must communicate with a third party or system
Solution Approach 1:
The system enables the driver to assess their own emotional state passively through driving behavior analysis without requiring active communication. The driver's natural driving actions serve as the assessment input, eliminating the need for deliberate speech or interaction with voice assistants.
Solution Approach 2:
The system continuously collects and analyzes driving behavior data in advance, building a baseline understanding of the driver's emotional state before any communication is needed. This preliminary data collection enables ongoing emotion assessment without requiring the driver to initiate any communication actions.
Data Source
AI summary
A system for a motor vehicle includes a sensor apparatus having a sensor for determining motor vehicle data and/or driving data of the motor vehicle, and an evaluation unit. The evaluation unit includes an emotion determination unit configured to assess the emotions of the driver of the motor vehicle on the basis of sensor signals transmitted by the sensor.