Vehicle Clearance Sensing for Dynamic Overhead Collision Prevention
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Solution Overview
Problem
Existing vehicle systems fail to dynamically adjust to changing dimensions due to loads or passenger protrusions, leading to potential collisions with overhead obstructions.
Innovation Solution
A collision prevention system utilizing sensors to monitor vehicle dimensions and approaching obstacles, with a controller comparing these dimensions and initiating preventive actions such as braking or alerting the driver to avoid collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle dimension is monitored in real-time to detect changes, then collision prevention capability is improved, but device complexity increases due to additional sensors and control systems
Solution Approach 1:
The first sensor is configured to monitor multiple dimensions of the vehicle (length, width, height) using a single sensor unit, allowing the system to detect changes in vehicle dimension caused by loads or passenger protrusions without requiring separate sensors for each dimension. This multi-functional approach improves collision prevention capability while minimizing the increase in device complexity.
Solution Approach 2:
The controller continuously receives real-time data from the first sensor regarding vehicle dimension changes and compares this information with the dimension of approaching obstacles detected by the second sensor. This feedback mechanism enables dynamic adjustment and immediate collision prevention actions, significantly improving reliability while using a streamlined sensor-controller architecture that limits complexity growth.
2Reliability
If real-time monitoring of vehicle dimension changes is implemented, then safety is improved, but energy consumption increases due to continuous sensing and processing
Solution Approach 1:
The first sensor monitors vehicle dimension at predetermined time intervals rather than continuously, reducing energy consumption while still detecting changes in vehicle dimension caused by loads or passenger protrusions. The controller processes these periodic measurements to determine collision risk, maintaining safety through regular updates without the excessive energy demand of continuous monitoring.
3Reliability
If the system responds to all detected dimension changes, then collision prevention is improved, but ease of operation deteriorates due to frequent false alerts
Solution Approach 1:
The controller applies a threshold value to the detected vehicle dimension changes, only triggering collision prevention actions when the change exceeds this threshold. This parameter-based filtering distinguishes between significant dimension changes that pose collision risks and minor variations that do not, preventing false alerts while maintaining reliable collision prevention for genuine hazards.
Data Source
AI summary
A collision prevention system for a vehicle. A collision prevention method for a vehicle. The system includes a first sensor operable to monitor a dimension (e.g. height) of the vehicle. The system also includes a second sensor for detecting a dimension (e.g. height) of an approaching obstacle. The system further includes a controller couplable to the first sensor and the second sensor. The controller is operable to compare the dimension of the vehicle monitored by the first sensor with the dimension of the approaching obstacle detected by the second sensor. The controller is also operable to, in response to a determination that the comparison of the dimension of the vehicle with the dimension of the approaching obstacle indicates a collision between the vehicle and the obstacle is possible, perform a collision prevention action.