Adaptive Vehicle Sensor Selection for Unsafe Driver Detection

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Solution Overview

Problem

Conventional vehicle safety systems with fixed vehicle sensor mechanisms are ineffective in dynamically adapting to changing driving conditions, leading to interrupted or insufficient data collection and reduced accuracy in unsafe driver detection, increasing the risk of collisions.

Innovation Solution

A vehicle sensing mechanism selection system that intelligently determines and dynamically adjusts the optimal sensing mechanism based on real-time driving conditions, utilizing a combination of vehicle sensors and peer-to-peer networking to enhance data collection and improve unsafe driver detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If fixed vehicle sensor mechanisms are used, then device complexity is reduced, but measurement precision and reliability of unsafe driver detection deteriorate due to inability to adapt to changing driving conditions

Engineering Contradiction:
Improveunsafe driver detection accuracyVSAvoidsensing mechanism selection system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system dynamically selects and switches between different sensing mechanisms (cameras, LIDAR, radar) based on real-time driving conditions such as weather, lighting, and traffic scenarios. This dynamic adaptation allows the system to maintain high detection accuracy without requiring all sensors to operate continuously, thus managing complexity through conditional activation rather than permanent multi-sensor deployment.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sensing mechanism selection system creates a universal platform that can handle multiple detection tasks (unsafe driver detection, collision avoidance, traffic monitoring) using a single integrated system that chooses the appropriate sensor based on the task requirements. This multi-functional approach improves measurement precision across various scenarios while avoiding the complexity of separate dedicated systems for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If multiple vehicle sensing mechanisms are deployed to improve detection accuracy, then measurement precision improves, but device complexity and energy consumption increase

Engineering Contradiction:
Improvedriving characteristics data accuracyVSAvoidenergy consumption of sensing mechanisms
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The system employs dynamic sensor activation where only the necessary sensing mechanisms are powered on based on current driving conditions. For example, cameras are activated in good weather while LIDAR or radar are selected for adverse conditions. This dynamic approach ensures high measurement precision when needed while minimizing energy consumption by keeping unnecessary sensors inactive.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Rather than continuously operating all sensing mechanisms, the system applies partial action by activating only the subset of sensors required for the current detection task. This selective activation maintains sufficient measurement precision for unsafe driver detection while significantly reducing overall energy consumption compared to running all sensors at full capacity continuously.

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If continuous data collection from multiple sensors is performed, then reliability of detection improves, but loss of time for processing and analyzing data increases

Engineering Contradiction:
Improvecollision avoidance system reliabilityVSAvoiddata processing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system dynamically adjusts data collection frequency and sensor activation based on detected driving conditions and risk levels. During normal driving, only essential sensors are monitored at standard rates. When potential unsafe behavior is detected, the system intensifies data collection from relevant sensors, thereby maintaining high reliability for critical detection while reducing average processing time and computational load during stable driving periods.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Instead of continuous full-sensor data collection, the system uses periodic sampling with variable intensity. Sensors are activated in periodic cycles based on driving condition assessments, with higher-frequency sampling triggered only when risk indicators are present. This periodic approach maintains detection reliability for safety-critical events while significantly reducing average data processing time and computational resource usage.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS20250296581A1System and method for selecting a vehicle sensing mechanism according to driving conditions
Publication Date: 2025.09.25 TOYOTA JIDOSHA KK
  • US20250296581A1 patent drawing
  • US20250296581A1 patent drawing
  • US20250296581A1 patent drawing

AI summary

A method and system are provided for implementing vehicle sensing mechanism selection which address the problems and limitations experienced by many conventional unsafe driver detection systems. The disclosed vehicle sensing mechanism selection system is designed to intelligently determine which sensing mechanisms of a vehicle is optimal for unsafe driver detection based on the driving conditions, such as the driving characteristics of a subject vehicle. Additionally, the vehicle sensing mechanism selection system has the capability to dynamically change the vehicle's operation in real-time to the selected sensing mechanism deemed optimal for the current situation (e.g., detected driving conditions, detected driving characteristics of a subject vehicle). The vehicle sensing mechanism selection system mitigates interruptions while observing a subject vehicle, which improves accuracy of the vehicle's unsafe driver detection. The vehicle sensing mechanism selection system and its distinct functions can enhance vehicle safety features.