Intersection Driving Support Alarm Logic for Pedestrian and Vehicle Detection
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Solution Overview
Problem
Existing driving support systems at intersections are inadequate as they fail to accurately detect pedestrians when only vehicle detection sensors are used and fail to detect oncoming vehicles when only human detection sensors are used, leading to incomplete safety confirmation for drivers.
Innovation Solution
A driving support device that acquires detection information from roadside machines equipped with both vehicle and human detection sensors, determining the necessity of alarm output based on the type of sensors present, ensuring that drivers are alerted to both oncoming vehicles and pedestrians when turning right at intersections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only vehicle detection sensor is disposed, then oncoming vehicle can be detected, but pedestrian cannot be detected
Solution Approach 1:
The patent applies multi-functionality by equipping the roadside machine with both vehicle detection sensors and human detection sensors. This allows the same detection system to handle multiple detection targets (both vehicles and pedestrians) simultaneously, resolving the contradiction between detecting vehicles and detecting pedestrians.
2Measurement precision
If only human detection sensor is disposed, then pedestrian can be detected, but oncoming vehicle cannot be detected
Solution Approach 1:
The patent applies multi-functionality by equipping the roadside machine with both vehicle detection sensors and human detection sensors. This allows the same detection system to handle multiple detection targets (both vehicles and pedestrians) simultaneously, resolving the contradiction between detecting vehicles and detecting pedestrians.
3Productivity
If driving support control is performed with incomplete detection information, then alarm can be output, but safety assessment becomes unreliable
Solution Approach 1:
The patent applies preliminary action by having the roadside machine perform detection of both vehicles and pedestrians in advance before the vehicle reaches the intersection. The detection information is acquired beforehand and used to make reliable safety assessments, ensuring that alarm output is based on complete and accurate information.
Data Source
AI summary
An intersection information acquisition unit acquires detection information by an object detection sensor including at least one of a vehicle detection sensor and a human detection sensor. A support processor performs driving support processing for outputting an alarm when the support processor determines that an own vehicle intends to cross the opposite lane and determines based on the acquired detection information that an object exists or the object is approaching in a direction in which the own vehicle travels to cross the opposite lane at the intersection. The support processor performs the driving support processing when the intersection information acquisition unit acquires detection information by the vehicle detection sensor. On the other hand, the support processor does not perform the driving support processing when the intersection information acquisition unit acquires detection information by the human detection sensor and does not acquire detection information by the vehicle detection sensor.