HDD Fall Detection Using Acceleration History
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing devices with hard disk drives (HDDs) face damage from mechanical impacts during falls, leading to unnecessary head retraction due to incorrect fall detection, which can interrupt device usage and reduce efficiency.
Innovation Solution
An information processing apparatus equipped with a three-axis acceleration sensor that uses both real-time acceleration data and historical information to differentiate between zero gravity states caused by falls and those caused by user handling, preventing unnecessary head retraction by accurately determining the falling state through a two-step determination process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If fall detection is performed using only real-time acceleration data, then the response speed is fast, but the detection accuracy is low leading to false positives
Solution Approach 1:
The system stores acceleration history data in advance before a fall event occurs. When a potential fall is detected through real-time acceleration monitoring, the stored historical data is used to verify whether the event is a true fall or normal movement, enabling accurate differentiation without delaying the protective response.
2Reliability
If the head is retracted frequently to prevent damage, then the HDD reliability is improved, but the device productivity deteriorates due to repeated recovery processes
Solution Approach 1:
The system uses stored acceleration history as feedback to verify fall events before triggering head retraction. By analyzing past acceleration patterns, the system confirms whether a true fall occurred, preventing unnecessary head retraction during normal device handling and maintaining continuous productivity while still protecting the HDD when actual falls occur.
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 solution enhances the accuracy of fall detection, preventing unnecessary head retraction and maintaining device usability during handling, thus improving operational efficiency by distinguishing between actual falls and user actions.
Implementation Method 1
an acceleration sensor is mounted on a device mounted with a HDD to detect a fall by the sensor
Data Source
AI summary
An information processing apparatus, an imaging apparatus, and an information processing method, and a computer program are provided. An information processing apparatus includes: an acceleration detecting part which detects an acceleration generated in the information processing apparatus; a storage part which stores history information based on information detected by the acceleration detecting part; and a control part which executes a determination process whether the information processing apparatus is in a falling state based on information detected by the acceleration detecting part and history information stored in the storage part.