Imaging Apparatus Vibration-Adaptive Display Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional imaging apparatuses using magnetic detection methods for switching between normal and reversal displays face issues with incorrect angle calculation due to external disturbances, leading to suboptimal display switching, especially during image capturing scenarios like walking.
Innovation Solution
An imaging apparatus equipped with first and second acceleration sensors to detect gravitational accelerations on the main body and display units, respectively, along with a vibration detection unit that adjusts the filter cutoff frequency based on the vibration state to accurately calculate the attitude angles and determine the display state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If filter processing is applied to gravitational acceleration to remove disturbance, then measurement precision of open/close angle is improved, but responsiveness in display switching deteriorates
Solution Approach 1:
The patent applies dynamics by making the filter cutoff frequency adjustable rather than fixed. The system dynamically changes the filter characteristics based on the detected vibration state, using a lower cutoff frequency when vibration is detected to maintain precision, and a higher cutoff frequency when no vibration is present to improve responsiveness. This resolves the contradiction by adapting the filtering strength to actual operating conditions.
Solution Approach 2:
The patent changes the parameter of filter cutoff frequency based on the vibration state detected by the vibration detection unit. When vibration exceeding a threshold is detected, the system adjusts the cutoff frequency to maintain accurate angle calculation. This parameter adaptation allows the system to optimize between precision and responsiveness depending on environmental conditions.
2Measurement precision
If a fixed filter cutoff frequency is used to reduce disturbance influence, then measurement precision is improved, but adaptability to different usage scenarios deteriorates
Solution Approach 1:
The system dynamically adapts the filter cutoff frequency based on the detected vibration state, allowing it to adjust to different usage scenarios such as walking, running, or stationary photography. This dynamic adaptation resolves the contradiction by making the measurement system flexible enough to handle various environments while maintaining precision when needed.
Solution Approach 2:
The vibration detection unit provides feedback about the current operating environment to the angle calculation unit, which then adjusts the filter parameters accordingly. This feedback mechanism enables the system to automatically adapt to different usage scenarios, resolving the contradiction between fixed precision and environmental adaptability.
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 enables precise switching between normal and reversal displays, reducing the impact of external vibrations and ensuring correct display states even during image capturing, thereby improving user experience.
Implementation Method 1
a first acceleration sensor configured to detect a first gravitational acceleration applied to the main body unit, a second acceleration sensor configured to detect a second gravitational acceleration applied to the display unit
Implementation Method 2
a vibration detection unit configured to detect a vibration applied to the main body unit or the display unit
Data Source
AI summary
An imaging apparatus can include an angle calculation unit configured to calculate attitude angles of a main body unit and a display unit from gravitational accelerations acquired from a first acceleration sensor and a second acceleration sensor, and switches a calculation method of the attitude angles to be calculated by the angle calculation unit based on a vibration state detected by a vibration detection unit.