Driver Physical Response Recording for Risk Detection

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Solution Overview

Problem

Drivers may not effectively recognize high-risk situations on the road due to insufficient warning messages, as these messages do not account for various factors such as driver skill and surrounding conditions, leading to inadequate preparation for potential hazards.

Innovation Solution

A physical response record system that detects and records a driver's physical responses, vehicle operation data, and surrounding conditions, analyzing these to categorize and warn the driver of risky situations, and stores this information for later use by other drivers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If warning messages are provided to drivers about high-risk points on the road, then drivers can be alerted to potential hazards, but the messages are not effective because they do not account for driver skill and surrounding conditions

Engineering Contradiction:
Improveeffectiveness of warning messageVSAvoidcomplexity of risk assessment system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary detection and recording of high-risk points by analyzing driver physical responses and vehicle operation data before the driver needs to make decisions. This allows the system to pre-process and categorize risk information, making it ready for efficient delivery when needed without adding complexity to the real-time warning delivery mechanism.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system changes the parameters of risk assessment by incorporating multiple dimensions including driver physical response parameters (heart rate, skin conductance), vehicle operation parameters (braking, steering, acceleration), and environmental parameters. This multi-parameter approach makes the warning system more effective without requiring complex real-time processing during critical moments.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If the system records and analyzes multiple types of data including physical responses and surrounding conditions, then the accuracy of risk detection is improved, but the system complexity and data processing requirements increase

Engineering Contradiction:
Improveaccuracy of risk detectionVSAvoidcomplexity of data collection system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system segments the complex data collection and processing tasks into distinct functional modules: physical response detection (biometric sensors), vehicle operation detection (operation sensors), environmental detection (surrounding condition sensors), risk determination (control unit), and information recording (storage units). This segmentation improves measurement precision by dedicating specialized sensors to each data type while managing system complexity through modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control unit acts as an intermediary that receives data from multiple sensor systems, processes and integrates this information, and determines risk levels. This intermediary component coordinates the complex interactions between different data sources without requiring direct complex integration between all sensor systems, thereby improving detection accuracy while managing system complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If the system provides detailed information about risky situations to drivers, then drivers can better prepare for hazards, but the information may not be effectively utilized due to driver inattention or lack of context

Engineering Contradiction:
Improvedriver preparedness for hazardVSAvoidinformation delivery effectiveness
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The system uses feedback by monitoring driver physical responses (heart rate, skin conductance) to determine when the driver is in a state to receive information effectively. The system adjusts information delivery based on this feedback, providing detailed risk information when the driver is physiologically ready to process it, thereby improving both driver preparedness and information utilization effectiveness.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system delivers risk information in advance before the vehicle reaches the high-risk point, allowing drivers sufficient time to process and prepare for upcoming hazards. This preliminary delivery of categorized risk information (risk level, type of risk, recommended actions) improves driver preparedness without overwhelming them at the critical moment when reaction time is limited.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS7672764B2System and method for recording physical response
Publication Date: 2010.03.02 DENSO CORP
  • US7672764B2 patent drawing
  • US7672764B2 patent drawing
  • US7672764B2 patent drawing

AI summary

A physical response record system includes a main unit and various sensors for recording driver's conditions and vehicle operations by a driver. The driver's conditions in combination with the vehicle operations are used to determine a risky situation of the vehicle based on an averaged driver's condition and the like. The risky situation is further analyzed for detecting a risky object and stored as a record for later use.