Multi-Level Alarm System for Autonomous Driving Vehicles

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Solution Overview

Problem

Current autonomous driving technologies require human drivers to intervene promptly in emergency situations, but they often fail to do so in a timely manner due to engagement in secondary tasks, leading to potential accidents.

Innovation Solution

An intelligent alarm system is developed for autonomous driving vehicles to communicate more effectively with human drivers, featuring multiple alarm levels (basic rule violation warning, risk warning, and emergency/take-over alarming) to prompt timely intervention, utilizing a networked system with sensors and machine learning models trained on crowd-sourced data to assess risks and trigger alarms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If autonomous driving vehicles rely on human drivers to take over control during emergencies, then the system can handle situations beyond autonomous capabilities, but human drivers are not prompt enough to respond timely when engaged in secondary tasks

Engineering Contradiction:
Improveemergency response reliabilityVSAvoiddriver reaction time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by continuously monitoring driver state and pre-assessing emergency scenarios before they occur. The alarm system is pre-configured with multiple levels (basic rule violation, risk, emergency) that can be triggered based on pre-defined conditions, allowing the system to prepare for potential emergencies and reduce actual response time when they occur.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback loops by monitoring driver attention, vehicle sensor data, and environmental conditions. This feedback mechanism allows the system to detect emerging risks early and alert the driver progressively, giving more time for response. The feedback also adapts to driver behavior patterns to optimize alert timing and effectiveness.

Inventive Principle:
Principle #23Feedback

2Loss of time

If the alarm system provides multiple levels of warnings, then driver response time improves, but the device complexity increases

Engineering Contradiction:
Improvedriver response timeVSAvoidalarm system complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The alarm system is segmented into distinct levels (basic rule violation warning, risk warning, emergency/take-over alarming), each with specific triggers and response protocols. This segmentation allows the system to address different emergency severities appropriately without requiring a single complex decision-making structure, making the overall system more manageable and implementable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system changes parameters such as alarm intensity, notification methods, and escalation timing based on the detected risk level. Instead of using a single fixed alarm mechanism, the system adjusts multiple parameters dynamically to match the urgency and type of situation, providing effective communication without requiring excessively complex hardware.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11040726B2Alarm system of autonomous driving vehicles (ADVs)
Publication Date: 2021.06.22 BAIDU USA LLC
  • US11040726B2 patent drawing
  • US11040726B2 patent drawing
  • US11040726B2 patent drawing

AI summary

In one embodiment, an intelligent and prompt alarm system is designed on autonomous driving vehicles to help autonomous driving vehicles to communicate to human drivers more vigilantly and promptly, and to improve human driver's performance to take over when an autonomous driving failure occurs. In one embodiment, an alarm system can be developed several levels: 1) basic warning, 2) risk warning, and 3) emergency/take-over alarming.