Vehicle Door Warning Using Intent Sensing and Rear Traffic Detection
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Solution Overview
Problem
Existing vehicle door collision warning systems often fail to timely and accurately alert passengers about potential collisions when opening the door, risking personal injury or property damage due to misjudgment or malfunction.
Innovation Solution
An anti-collision warning system for vehicle doors that includes a sensing module to detect passenger intent, a detection module to gather traffic conditions, and a control module to issue alerts based on real-time video display and prompts on the vehicle's glass surfaces, ensuring passengers can assess safety before opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a delayed door opening control system is used to remind passengers, then passengers can be alerted before opening the door, but the system may misjudge or malfunction causing passengers to be locked inside
Solution Approach 1:
The system applies preliminary anti-action by detecting objects behind the vehicle before the door opening action occurs. The sensing module detects motorcycles, electric vehicles, or bicycles approaching from behind, and the control module prevents door opening by controlling the door handle lock to maintain a locked state when potential collision risks are detected
Solution Approach 2:
The system implements feedback through multiple sensing modules that continuously monitor the environment behind the vehicle. The control module receives real-time detection results and adjusts the door handle lock state accordingly, creating a closed-loop control system that provides feedback to both the mechanical locking mechanism and the passenger through warnings
2Loss of information
If passengers observe traffic conditions by turning their heads backwards, then they can see behind the vehicle, but this does not comply with ergonomics and passengers are more likely to forget to observe
Solution Approach 1:
The system introduces an intermediary - the display module integrated into the rearview mirror - that mediates between the complex task of observing traffic conditions and the passenger. The display module presents processed traffic condition information in an easily observable format, eliminating the need for passengers to turn their heads backwards while maintaining comprehensive awareness
3Loss of time
If the warning module issues alerts based on sensing results, then passengers can be prompted timely, but false alerts may cause unnecessary panic or distraction
Solution Approach 1:
The system performs preliminary action by pre-setting multiple detection thresholds and criteria in the control module. Before issuing a warning, the control module evaluates multiple parameters including the type of object detected, its distance from the vehicle, its speed, and the angle of approach. This preliminary evaluation ensures that only genuine collision risks trigger warnings, reducing false alerts while maintaining timely response
Solution Approach 2:
The system applies parameter changes by dynamically adjusting detection sensitivity and warning thresholds based on various conditions such as vehicle speed, time of day, and environmental factors. The control module modifies detection parameters to optimize the balance between timely warning and avoiding false alerts
Data Source
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AI summary
An anti-collision warning system for a vehicle door, comprising: a sensing module, a detection module, and a warning module. The sensing module is configured to sense whether a passenger has an intention to open a vehicle door and output a sensing result. The control module is coupled to the sensing module, the detection module and the warning module, and the control module is configured to control the warning module to issue an alert based on information on traffic conditions from the detection module in response to the sensing result being YES. The anti-collision warning system for a vehicle door can issue an alert to the passenger in a timely and effective manner when it senses that the passenger has the intention to open the vehicle door. Therefore, the passenger would be alerted and determine whether it is an appropriate time to open the vehicle door, thus preventing the vehicle door from colliding with an object.