Location-Adaptive Impact Thresholds for Vehicle Accident Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional accident determination devices face challenges in accurately determining accidents based on impact magnitude, as the same threshold is applied across different locations, such as roads and parking spaces, leading to potential misclassification due to varying environmental conditions.
Innovation Solution
An accident determination device that adjusts its impact threshold based on the area attribute of the moving object's location, setting a lower threshold for parking spaces and a higher threshold for roads, utilizing a combination of impact detection, sound analysis, and image recognition to determine accident occurrence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single predetermined threshold is used for accident determination across all locations, then the device complexity is reduced and ease of operation is improved, but the measurement precision and reliability of accident detection deteriorate due to varying environmental conditions in different areas
Solution Approach 1:
The determination threshold is made dynamic by automatically adjusting it based on the detected area attribute. The system switches between a first threshold for parking spaces and a second threshold for roads, allowing the threshold to adapt to different environmental conditions without requiring manual intervention or complex user configuration.
Solution Approach 2:
The system changes the determination threshold parameter according to the area attribute. When a parking space is detected, the threshold is set to a lower first value; when a road is detected, the threshold is set to a higher second value. This parameter adaptation resolves the contradiction by maintaining measurement precision across different locations while keeping the system easy to operate.
2Reliability
If a higher threshold is used for road areas to avoid false positives from road irregularities, then the reliability for road accidents is improved, but the productivity of accident detection deteriorates in parking spaces where smaller impact accidents occur
Solution Approach 1:
The system applies different determination thresholds to different area types: a lower first threshold for parking spaces and a higher second threshold for roads. This local differentiation allows the system to maintain high reliability for road accidents while simultaneously achieving high productivity for detecting smaller impact accidents in parking spaces.
Solution Approach 2:
The determination threshold dynamically adapts to the detected area attribute. The system automatically selects the appropriate threshold level based on whether the vehicle is in a parking space or on a road, ensuring optimal detection performance for each location type without compromising overall productivity.
3Measurement precision
If a lower threshold is used for parking spaces to detect small impact accidents, then the measurement precision for parking space accidents is improved, but false positives increase on roads due to normal road irregularities
Solution Approach 1:
The system implements location-specific determination thresholds by first identifying the area attribute. When a parking space is detected, a lower threshold is applied to achieve high measurement precision for small impact accidents. When a road is detected, a higher threshold is applied to maintain reliability and avoid false positives from normal road irregularities.
Solution Approach 2:
The system performs preliminary detection of the area attribute before setting the determination threshold. By first identifying whether the vehicle is in a parking space or on a road, the system can pre-select the appropriate threshold level, ensuring both measurement precision and reliability are optimized for the current location before accident detection begins.
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
This approach enhances the accuracy of accident detection by adapting to specific environmental conditions, reducing false positives and negatives by using location-specific thresholds, thereby improving the reliability of accident notifications.
Implementation Method 1
an impact detecting unit that detects an impact having occurred in the moving object
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An accident determination device which determines whether an accident has occurred in a moving object based on an impact having occurred in said moving object, comprising: an impact detecting unit that detects an impact having occurred in said moving object; an accident determining unit that compares impact value of the impact detected by said impact detecting unit with a determination threshold so as to determine whether an accident has occurred in said moving object; and a threshold setting unit that sets said determination threshold according to an area attribute of the area where said moving object is located.