Road Hazard Warning System Using Path History

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Solution Overview

Problem

Existing DSRC systems for vehicle platoons face challenges in providing timely warnings of hazards to following vehicles when the lead vehicle stops suddenly, as they may struggle to stop in time due to the lack of advanced hazard detection and communication systems.

Innovation Solution

A road hazard warning system equipped with hazard detection sensors and a primary transmitter in the lead vehicle, which transmits information about detected hazards and path history, and a secondary receiver and control module in following vehicles to notify drivers of impending hazards, allowing them to take necessary actions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If DSRC systems are used for vehicle platoon communication, then position information and basic status information can be transmitted, but advance hazard warnings cannot be provided to following vehicles when the lead vehicle stops quickly

Engineering Contradiction:
Improvesafety of vehicle platoonVSAvoidhazard detection information
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The patent introduces an intermediary hazard detection system that acts as a mediator between the lead vehicle's braking action and the following vehicles. The system includes sensors (accelerometers, gyroscopes, cameras) that detect hazards and a communication module that transmits hazard warning messages to following vehicles through DSRC, enabling advance warning without requiring direct lead vehicle-to-following vehicle communication

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary hazard detection and warning transmission before the following vehicles need to take action. The hazard detection sensors continuously monitor the lead vehicle's status and environment, and when a hazard is detected, the system immediately transmits warning messages to following vehicles, allowing them to prepare and respond in advance rather than reacting after the lead vehicle has already stopped

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20180114439A1Road Hazard Warning System
Publication Date: 2018.04.26 DENSO INTERNATIONAL AMERICA INC
  • US20180114439A1 patent drawing
  • US20180114439A1 patent drawing
  • US20180114439A1 patent drawing

AI summary

A hazard warning system for vehicles including hazard detection sensors and a primary transmitter for a primary vehicle configured to transmit information regarding a hazard and a path history of the primary vehicle. A secondary receiver for a secondary vehicle is configured to receive the information regarding the hazard detected by the hazard detection sensors, and the path history of the primary vehicle. A secondary vehicle control module is configured to notify a driver of the secondary vehicle of the hazard when the secondary vehicle is traveling along a path similar to that of the primary vehicle.