Portable Data Capture Device Free Fall Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Portable data capture devices, such as smartphones and tablets, often lose unsaved data when accidentally dropped during use, compromising the accuracy of data capture sessions.
Innovation Solution
Incorporating sensors like accelerometers, gyroscopes, or proximity sensors to detect free fall, triggering a control system to automatically save data by disabling touch controls, configuring the battery to suspend mode, displaying a message, locking security settings, and storing data in both device and host memory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the portable data capture device is used in handheld mode for data capture sessions, then the device portability and operational flexibility are improved, but the risk of accidental drops and data loss increases
Solution Approach 1:
The system performs preliminary actions by continuously monitoring accelerometer data to detect free-fall conditions before data loss occurs. When a drop is detected, the system automatically saves captured data to non-volatile memory and disables touch controls in advance, preventing data loss from subsequent handling or accidental inputs during the drop event.
Solution Approach 2:
The system implements feedback by continuously monitoring accelerometer data and using this information to trigger automatic protective actions. The control system receives real-time feedback from the accelerometer about device motion states, and when free-fall is detected, it automatically saves data and adjusts operational parameters to prevent data loss, creating a closed-loop protection mechanism.
2Reliability
If automatic save functions are implemented to prevent data loss during drops, then data integrity is improved, but the device complexity increases
Solution Approach 1:
The system implements self-service by automatically detecting drops through the accelerometer and autonomously saving captured data to non-volatile memory without requiring user intervention. The control system monitors device states continuously and automatically triggers protective actions when drops are detected, allowing the device to protect its own data without external assistance.
Solution Approach 2:
The system changes operational parameters dynamically based on detected conditions. When a drop is detected, the control system automatically changes the save state from normal operation to forced save, and changes touch control sensitivity to disabled state temporarily. These parameter changes are automatic and condition-based, adding functionality without requiring complex user interfaces or manual configurations.
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
Prevents loss of unsaved data by ensuring immediate saving and secure storage when a device is dropped, maintaining data integrity during capture sessions.
Implementation Method 1
A sensor is supported by the handheld device, for sensing when the portable device has been dropped from the user's hand and is in free fall in the venue
Implementation Method 2
the sensor may be an accelerometer, a gyroscope, or a proximity sensing device
Data Source
AI summary
A sensor senses when a portable, handheld data capture device has been dropped from a user's hand and is in free fall in a venue. A control system automatically saves data captured in a handheld mode of operation in response to the sensing of the free fall of the portable device.