Projector Automatic Image Rotation via Angle Sensor Feedback
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Solution Overview
Problem
Conventional projectors require manual adjustment of image orientation when the projector is rotated, leading to inconvenience in use, especially for handheld devices where image skew occurs due to changes in orientation.
Innovation Solution
A projector system comprising a transceiver, image converter, projecting module, and angle sensor that detects orientation changes and automatically adjusts the projected image by transmitting angle signals to a server to generate and transmit a rotated image signal, ensuring the image aspect remains unchanged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the projector is made highly mobile and rotatable to adapt to different service environments, then the adaptability is improved, but the image quality deteriorates due to skew caused by rotation
Solution Approach 1:
The system performs preliminary actions by pre-calculating and preparing rotated image signals before the actual projection occurs. When orientation change is detected, the processor has already prepared the appropriate rotated image signal based on the detected orientation, allowing for instant correction without manual intervention and maintaining image quality while enabling mobility.
Solution Approach 2:
The system implements feedback through the angle sensor that continuously monitors the projector's orientation and provides this information to the processor. The processor uses this feedback to dynamically adjust the image signal in real-time, ensuring the projected image maintains correct orientation regardless of how the projector is positioned, thus resolving the contradiction between mobility and image quality.
2Device complexity
If manual adjustment of image orientation is required when projector is rotated, then the device complexity is reduced, but the ease of operation deteriorates due to inconvenient manual adjustments
Solution Approach 1:
The system achieves self-service by automatically detecting the projector's orientation through the angle sensor and autonomously adjusting the image signal through the processor. This eliminates the need for manual user intervention to correct image skew, significantly improving ease of operation while the automated nature of the system keeps the overall device complexity manageable through integrated components.
3Adaptability or versatility
If the projector is rotated to change orientation for different viewing angles, then the adaptability is improved, but the time required for manual image adjustment increases
Solution Approach 1:
The system performs preliminary computation of rotated image signals based on detected orientation changes. When the projector is rotated to a new viewing angle, the processor has pre-calculated the appropriate image rotation parameters and applies them instantly, eliminating the time-consuming manual adjustment process while maintaining full viewing angle adaptability.
Solution Approach 2:
The system ensures continuity of useful action by maintaining automatic real-time adjustment during the entire projection process. The angle sensor continuously monitors orientation and the processor continuously adjusts the image signal, ensuring that viewing angle changes never cause image distortion and eliminating any time loss associated with manual re-adjustment.
Data Source
AI summary
A projector, a projecting system comprising the same and an automatic image adjusting method thereof are provided. The projector co-operates with a server of the projecting system and projects an initial image at a first orientation. The projector senses an angle difference value generated while the first orientation of the projector is changed to a second orientation, and generates an angle signal according to the angle difference value. The projector transmits the angle signal to the server so that the server generates a rotated image signal according to the angle signal and transmits the rotated image signal to the projector. The projector converts the rotated image signal into a rotated image, and projects the rotated image at the second orientation.