Collision Risk Region Setting for Mine Safety
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Solution Overview
Problem
Existing collision risk warning systems in environments like mines are unreliable due to low warning generation accuracy, often generating false warnings when safety facilities like mounds are present between vehicles.
Innovation Solution
A safe driving assistance device that incorporates a position detecting device, vehicle speed sensor, steering angle sensor, environment recognition device, vehicle-to-vehicle communication, and a region setting section to determine collision risk by considering the positional relationship between vehicles and safety facilities, using travel data, vehicle specifications, and environment data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If collision risk is determined using only positional relationship with detected vehicles, then the system is simple to operate, but warning generation accuracy deteriorates due to false warnings when safety facilities like mounds are present
Solution Approach 1:
The patent merges multiple data sources including vehicle position detection, environment recognition (laser radar), and safety facility database information into a unified collision risk determination system. This integration allows the system to comprehensively assess collision risk by combining positional relationship data with environmental context, thereby improving warning generation accuracy without excessive complexity increase
Solution Approach 2:
The patent introduces a safety facility database as an intermediary element that provides pre-stored information about mounds and other safety facilities. This database acts as a mediator between the vehicle position detection and the collision risk determination, allowing the system to accurately identify when safety facilities are present between vehicles and adjust warnings accordingly, thereby improving accuracy while maintaining system manageability
2Measurement precision
If multiple sensors and data sources are integrated to improve warning accuracy, then warning generation accuracy is improved, but device complexity increases
Solution Approach 1:
The patent implements a multi-functional determination section that handles multiple tasks: vehicle position detection, environment scanning, safety facility identification, and collision risk calculation. By designing the determination section to perform multiple functions using a unified processing architecture, the system achieves high warning accuracy while controlling complexity through functional integration rather than separate dedicated components for each function
Solution Approach 2:
The patent segments the collision risk determination process into distinct operational steps: obtaining vehicle position information, scanning environment data, identifying safety facilities, calculating collision risk, and determining warning necessity. This procedural segmentation allows the complex determination logic to be organized into manageable stages, improving accuracy through systematic processing while maintaining system complexity at acceptable levels
Data Source
AI summary
A safe driving assistance device includes a region setting section that sets a collision risk determination region used for determining presence or absence of a collision risk of a host vehicle, and a determination section that determines a collision risk between the host vehicle and another vehicle using a host vehicle collision risk determination region, another vehicle collision risk determination region, and environment data. The host vehicle collision risk determination region of the host vehicle is set based on travel data of the host vehicle, a vehicle specification of the host vehicle, and the environment data obtained by the host vehicle. The other vehicle collision risk determination region is obtained by a vehicle-to-vehicle communication device. The other vehicle collision risk determination region is the collision risk determination region of the other vehicle as a collision risk determination target with the host vehicle set by the other vehicle.