Vehicle Driving Support for Blind-Area Motion Detection
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Solution Overview
Problem
Existing vehicle detection systems fail to effectively prevent collisions with moving objects that are partially shielded by obstacles, as they do not adequately determine the existence or movement of such objects in blind areas.
Innovation Solution
A driving support control device equipped with an acquisition unit that detects changes in brightness values using an event camera and a control unit that initiates collision prevention support when a partially shielded object is determined to be moving, utilizing a combination of radar, camera, and event camera data to identify and prevent collisions with moving objects behind obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional target detectors (image pickup device and radar) are used to detect objects around the vehicle, then the detection system is simple and cost-effective, but the system fails to detect moving objects in blind areas formed by obstacles
Solution Approach 1:
The patent combines multiple detection systems (image pickup device, radar, and event camera) into an integrated detection system. The image pickup device captures visual information, the radar detects objects using radio waves, and the event camera specifically detects brightness changes to identify moving objects in blind areas. By merging these systems, the patent achieves comprehensive object detection that overcomes the limitations of individual detectors, particularly in detecting moving objects partially shielded by obstacles.
Solution Approach 2:
The event camera acts as an intermediary detector that specifically detects brightness changes caused by moving objects in blind areas. It mediates between the conventional image pickup device and the final detection output, providing specialized information about moving objects that other detectors miss. The control unit processes event camera data to determine movement of partially shielded objects, making the event camera a key intermediary in solving the detection problem.
2Measurement precision
If the system uses multiple detection methods to identify moving objects behind obstacles, then the detection accuracy improves, but the processing time and computational load increase
Solution Approach 1:
The system performs preliminary detection using the image pickup device to identify potential objects in the field of view. Before full analysis, the control unit pre-processes the data to identify regions of interest, particularly areas where obstacles may be shielding objects. This preliminary action reduces the computational burden on subsequent processing stages by focusing resources on relevant detection areas rather than analyzing the entire field of view.
Solution Approach 2:
The event camera operates by detecting brightness changes at specific intervals, providing periodic updates on moving objects rather than continuous monitoring. This periodic detection approach reduces the overall data processing load while still capturing movement information effectively. The control unit processes event camera data at predetermined time intervals, balancing detection accuracy with processing efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reduces or prevents collisions with moving objects that are partially shielded by obstacles by predicting their movement and initiating appropriate driving support measures, such as braking or steering adjustments, thereby enhancing safety.
Implementation Method 1
an acquisition unit configured to acquire, from a first detector which detects change of a brightness value of an object which occurs in accordance with displacement of the object
Data Source
AI summary
A driving support control device for a vehicle includes an acquisition unit configured to acquire, from a first detector which detects change of a brightness value of an object which occurs in accordance with displacement of the object, information indicating change of a brightness value of a partially shielded object partially shielded by an obstacle which occurs in accordance with displacement of the partially shielded object, as a first detection signal, and a control unit configured to, in a case where it is determined, by using the first detection signal, that the partially shielded object is moving, cause a driving support execution device to execute collision prevention support for preventing a collision with the partially shielded object.