Impact Cause Detection for Drop-Resistant Accident Notifications
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing devices attached to vehicles, such as drive recorders, may erroneously detect vehicle accidents due to vibrations causing them to drop and generate false notifications by exceeding acceleration thresholds, leading to unnecessary communication with call centers.
Innovation Solution
An information processing device equipped with an impact detection unit, impact cause determination unit, and notification processing unit that distinguishes between impacts caused by drops and actual accidents, preventing unnecessary notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the acceleration threshold is set to detect impacts, then accident detection capability is improved, but false notifications due to drop impacts increase
Solution Approach 1:
The system performs preliminary detection of the device's attached state before impact occurs. By continuously monitoring whether the device is properly attached to the vehicle interior, the system can preemptively identify drop impacts before they trigger false accident notifications, allowing the notification function to be selectively activated or deactivated based on attachment status.
Solution Approach 2:
The attached state detection function serves as an intermediary between the acceleration sensor and the notification function. It mediates the impact detection process by providing contextual information about whether the device is properly mounted, thereby filtering out false triggers from drop impacts while preserving legitimate accident detection capability.
2Speed
If the notification function is always active, then accident response speed is improved, but unnecessary communication increases
Solution Approach 1:
The notification function transitions from a static always-active state to a dynamic conditional state. The system dynamically adjusts the notification function's activation status based on real-time attached state detection results, enabling fast response to genuine accidents while preventing unnecessary communications during device drops or improper mounting conditions.
Solution Approach 2:
The system changes the operational parameter of the notification function from fixed (always active) to variable (conditionally active). By modifying the notification function's state based on attachment status parameters, the system optimizes both response speed and energy efficiency according to actual operational conditions.
3Measurement precision
If impact detection sensitivity is increased, then detection accuracy is improved, but false detection of drop impacts increases
Solution Approach 1:
The impact detection process is segmented into multiple independent detection stages: (1) attached state detection, (2) impact detection, and (3) cause determination. This segmentation allows each stage to focus on specific aspects, with the attached state detection stage filtering out false information before it reaches the impact response stage, thereby maintaining high detection accuracy while reducing false positives.
Solution Approach 2:
The attached state detection result provides feedback to the notification function, creating a closed-loop system. This feedback mechanism allows the system to continuously monitor and adjust its response based on whether the device is properly attached, thereby maintaining measurement precision for genuine impacts while eliminating false information from drop events.
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
Reduces false notifications by accurately determining the cause of impacts, thereby minimizing unnecessary communication and transmission of accident information.
Implementation Method 1
an acceleration sensor that measures acceleration
Data Source
AI summary
Unnecessary notification is reduced. Occurrence of an impact in an information processing device is detected, a cause of the impact is determined, and when it is determined that the cause of the impact is a drop of the information processing device, notification regarding the impact is not performed.