Driving Support Trajectory Estimation Across Sensor Blind Spots
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Solution Overview
Problem
Existing driving support systems fail to continuously monitor and support the trajectory of a moving body when it enters a blind spot area between sensors, leading to halted support and potential discomfort for drivers due to abrupt resumption of support when the body re-enters the detected area.
Innovation Solution
A driving support apparatus with a configuration of first and second sensors, a position detection unit, a position estimation unit, and a trajectory calculation unit that estimates and calculates the trajectory of a moving body in the blind spot area, allowing continuous support execution by adjusting support content based on estimation accuracy and environmental factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple sensors are used to detect moving bodies, then measurement coverage is improved, but blind spot areas remain where trajectory cannot be continuously tracked
Solution Approach 1:
The system performs preliminary actions by detecting moving bodies at the boundaries of sensor detection areas before they enter blind spots. Position information is captured in advance at transition points, enabling continuous trajectory calculation even when objects pass through undetected blind spot regions between sensors.
Solution Approach 2:
Position information serves as an intermediary element that bridges the gap between discrete sensor detection areas. By utilizing position data from boundary detection points and interpolating through blind spots, the system maintains continuous trajectory information without requiring direct sensor coverage at all times.
2Reliability
If driving support is halted when trajectory cannot be checked in blind spot area, then safety is maintained, but driver comfort deteriorates due to abrupt resumption of support
Solution Approach 1:
The system maintains continuous driving support by calculating trajectories through blind spot areas using position information from sensor boundaries. Rather than halting support when objects enter blind spots, the trajectory calculation unit continuously estimates positions, ensuring uninterrupted and smooth driving assistance without abrupt start-stop behavior.
3Reliability
If position estimation is performed in blind spot area, then trajectory continuity is improved, but measurement precision may be reduced
Solution Approach 1:
The system applies position estimation specifically in blind spot areas where direct detection is unavailable, rather than attempting to estimate positions everywhere. This partial application of estimation only where necessary maintains precision in sensor-covered areas while ensuring continuity in blind spots, using boundary position information as the basis for estimation.
Data Source
AI summary
A driving support apparatus according to the invention estimates the position of a moving body by controlling a position estimation unit when the tracking-target moving body leaves a first area or a second area to enter a blind spot area and detects the position of the moving body by controlling a position detection unit when the moving body leaves the blind spot area to enter the first area or the second area. In this manner, the trajectory of the tracking-target moving body is calculated so that the trajectory of the moving body detected in the first area or the second area and the trajectory of the moving body estimated in the blind spot area are continuous to each other and driving support is executed based on the calculated trajectory of the tracking-target moving body.