Projector Status Image Feedback for Manual Angle Adjustment
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Solution Overview
Problem
Adjusting the projection image of an ultra-short-throw projector is inconvenient and time-consuming due to the need for frequent back-and-forth movement between the projector and the viewing point to ensure a horizontal orientation.
Innovation Solution
A method utilizing a sensor and controller to project status images based on real-time detection data, allowing users to adjust the projector's position without needing to move away for verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the user manually adjusts the projector by moving back and forth between the projector and viewing point, then the projection image can be adjusted to horizontal orientation, but the operation becomes inconvenient and time-consuming
Solution Approach 1:
The patent applies feedback by using a sensor to detect the projection image's horizontal status and transmitting this information back to the user via a status image displayed on the projection surface. This allows the user to see the adjustment status without moving to the viewing point, resolving the contradiction between achieving precise horizontal orientation and maintaining operational convenience.
Solution Approach 2:
The patent introduces an intermediary (status image displayed by the projector) between the projection image and the user. Instead of requiring direct visual inspection at the viewing point, the status image serves as an intermediary that conveys horizontal status information to the user's location near the projector, eliminating the need for repetitive back-and-forth movement.
2Measurement precision
If the user moves away from the projector to view the projection image for adjustment verification, then the horizontal status can be determined, but the operation becomes time-consuming due to repeated movement
Solution Approach 1:
The sensor continuously detects the projection image's horizontal status and provides real-time feedback through the status image. This eliminates the need for the user to repeatedly move to the viewing point for verification, reducing adjustment time while maintaining detection accuracy.
Solution Approach 2:
The projector performs self-verification by displaying the status image that indicates horizontal status. Instead of requiring the user to perform the verification function by viewing the projection image at the viewing point, the projector serves itself by providing the status information directly near its location.
3Ease of operation
If the projector projects status image continuously based on real-time detection data, then the user can adjust the projector without moving, but energy consumption increases
Solution Approach 1:
The projector projects the status image periodically or on-demand based on detection changes rather than continuously. The controller receives detection data and triggers status image projection only when necessary, reducing energy consumption while maintaining operational convenience.
Solution Approach 2:
The status image is projected partially (only when detection data indicates a change or when needed for adjustment) rather than excessively (continuously). This partial action maintains the convenience of real-time feedback while avoiding unnecessary energy consumption during periods when adjustment is not needed.
Data Source
AI summary
The present disclosure provides a method for assisting the manual adjustment of projector and a projector. The projector comprises a projection optical engine, a sensor and a controller. The controller performs the following steps: receiving a plurality of detection data continuously and in real time from the sensor; determining whether a current detection data at a current time is the same as a past detection data at a previous time, wherein the detection data comprises the current detection data and the past detection data; controlling the projection optical engine to project a status image when the current detection data is different from the past detection data, wherein the status image comprises a current angle data, which is obtained based on the plurality of detection data; and not controlling the projection optical engine to project the status image when the current detection data is the same as the past detection data.