Mobility Information Mapping for Blind-Spot Obstacle Avoidance
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Solution Overview
Problem
Current automatic driving systems face challenges in accurately sensing and responding to the unpredictable movements of other vehicles, especially those in blind spots or changing lanes, which can lead to abrupt traveling controls and potential collisions, and do not ensure safe movement when obstacles like fallen objects are present on the road.
Innovation Solution
A mobility information provision system that collects and processes field information from multiple communication apparatuses to generate course-related information for vehicles, allowing them to move safely by mapping positions and movable ranges of mobile bodies, including obstacles, and controlling movement to avoid collisions and obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a vehicle uses its own sensor to capture images and detect surrounding vehicles, then the vehicle can identify obstacles and potential collisions, but the vehicle cannot accurately sense unpredictable movements of other vehicles especially in blind spots or changing lanes
Solution Approach 1:
The patent combines multiple communication apparatuses in different zones to create a unified information collection network. Each apparatus collects field information about mobile bodies in its zone, and this information is integrated by the mapping unit to provide comprehensive detection coverage that overcomes the limitations of individual sensors and blind spots.
Solution Approach 2:
The patent introduces a server as an intermediary that collects, processes, and distributes mobility information to multiple vehicles. This mediator enables vehicles to access information about unpredictable movements of other vehicles that their own sensors cannot detect, improving response capability without adding complex onboard detection systems.
2Device complexity
If the vehicle relies on its own sensor for safety, then the system remains simple, but the vehicle cannot ensure safe movement when obstacles like fallen objects are present on the road
Solution Approach 1:
The communication apparatuses and server infrastructure are designed to serve multiple functions: detecting vehicles, identifying obstacles like fallen objects, tracking unpredictable movements, and providing course-related information to multiple vehicles simultaneously. This multi-functionality enhances reliability without proportionally increasing onboard vehicle complexity.
Solution Approach 2:
The server acts as an intermediary that aggregates information from multiple sources including various communication apparatuses, processes this information to identify obstacles and safe courses, and distributes this processed information to vehicles. This external processing enhances safety assurance while keeping individual vehicle systems relatively simple.
3Speed
If the vehicle uses sensor-based detection for surrounding vehicles, then the vehicle can identify nearby obstacles, but the vehicle cannot respond to vehicles in blind spots or changing lanes in time
Solution Approach 1:
The patent transitions from localized sensor detection to a multi-dimensional information network spanning multiple zones. By distributing communication apparatuses across different zones and having them report to a central mapping unit, the system creates a comprehensive spatial awareness that eliminates blind spots and enables timely detection of vehicles changing lanes or approaching from hidden positions.
Data Source
AI summary
A mobility information provision system includes a collector, a mapping unit, a generator, and a controller. The collector collects field information on movement of mobile bodies using communication apparatuses provided in respective predetermined zones or respective predetermined sections. The mapping unit maps positions of the mobile bodies based on the collected field information. The generator generates course-related information based on information on the mapped positions of the mobile bodies. The controller is provided for each of the mobile bodies and controls movement of corresponding one of the mobile bodies based on the course-related information. If the collected field information includes information on an obstacle that would hinder the movement of the mobile bodies, the mapping unit maps the obstacle together with the positions of the mobile bodies, and the generator generates the course-related information for the mobile bodies to cause the mobile bodies to move avoiding the obstacle.