Vehicle Door Monitoring With Structured Light Obstacle Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing door monitoring systems for vehicles fail to effectively prevent doors from contacting objects in their travel path, lacking a reliable method to detect and respond to objects before contact occurs.
Innovation Solution
A door monitoring system incorporating a structured light assembly with an optical projector and image capturing module, along with an alarm device and locking mechanism, which projects a structured optical pattern to detect objects and generates notifications and locks the door when it approaches an object, preventing further travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a door monitoring system is implemented to detect objects in the travel path, then safety is improved, but device complexity increases
Solution Approach 1:
The patent introduces an intermediary detection system consisting of optical sensors and structured light projectors that mediate between the door mechanism and the object in its path. This intermediary system detects objects before contact occurs, enabling preventive action without requiring direct contact sensing, thus improving safety while maintaining manageable system complexity through non-intrusive detection methods
Solution Approach 2:
The system performs preliminary detection of objects in the door's travel path before the door actually contacts them. By projecting structured light patterns and detecting disruptions in advance, the system triggers warnings and prevents door closure before harmful contact occurs, resolving the contradiction by enabling safety through advance detection rather than reactive response
2Reliability
If a locking device is actuated to prevent further door travel, then contact with objects is prevented, but ease of operation deteriorates
Solution Approach 1:
The locking device operates dynamically based on real-time detection conditions rather than being statically engaged. The system continuously monitors the door path and only engages the lock when an object is detected, allowing normal door operation when safe while preventing contact when necessary. This dynamic behavior resolves the contradiction by making the restriction conditional rather than constant
Solution Approach 2:
The system implements feedback control where the locking mechanism responds to signals from the optical detection system. When objects are detected in the door path, feedback triggers the locking device to engage; when the path is clear, the lock disengages automatically. This feedback loop ensures safety while maintaining ease of operation during normal use, as users experience no restriction when no hazard is present
3Measurement precision
If multiple notifications are generated at different distances, then detection precision is improved, but loss of time increases
Solution Approach 1:
The system employs periodic action by generating notifications at predetermined distance intervals as the door approaches an object. Instead of continuous alarming, it triggers warnings at specific threshold distances (e.g., first notification at 1 meter, second at 0.5 meters), providing precise distance measurement through discrete detection zones while minimizing time loss by only activating alerts when threshold crossings occur rather than continuously
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 prevents door contact with objects by providing timely notifications and actuating a locking device to halt door movement when a predetermined distance is reached, ensuring safety and reducing potential damage.
Implementation Method 1
a structured light assembly with an optical projector and image capturing module
Implementation Method 2
image capturing module configured to detect an object in the travel path of the door
Data Source
AI summary
A monitoring system is configured to prevent a door of a vehicle from contacting an object in a travel path of the door. The monitoring system includes an alarm device and a structured light assembly that has at least one optical projector and at least one image capturing module configured to detect an object in the travel path of the door. A control system is configured to generate a notification, with the alarm device, upon the detected presence of the object in the travel path of the door.