Dynamic Projection Device with Reflection Unit and Angle Calculation
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Solution Overview
Problem
Existing portable dynamic projection devices lack mature solutions for multi-directional projection, often resulting in distortion when projecting images to target positions due to simple movement of the projection picture, which is power-intensive and prone to failure.
Innovation Solution
A dynamic projection device comprising a projection unit, a reflection unit, an angle calculation unit, and an image correction unit that calculates and adjusts the rotation angle of the reflection unit to correct the projection image, allowing for precise direction control and high-quality projection across various environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the projection picture is simply moved to achieve dynamic projection, then the device structure is simple, but the projection picture becomes distorted
Solution Approach 1:
The system performs preliminary calculations of rotation angles and image correction parameters before actual projection. The angle calculation unit computes the required rotation angle based on current device orientation, and the image correction unit pre-processes the projection image with correction parameters to compensate for expected distortion, ensuring high-quality projection without complex real-time adjustments
Solution Approach 2:
The patent introduces intermediate processing units (angle calculation unit and image correction unit) that mediate between the simple projection mechanism and the final projection output. These intermediaries calculate and apply correction parameters based on device orientation, enabling simple hardware to achieve high-quality distorted-free projection through computational compensation
2Adaptability or versatility
If the projection device is moved to different positions, then multi-directional projection is achieved, but the projection picture becomes distorted
Solution Approach 1:
The system dynamically adjusts projection parameters based on real-time device orientation. The angle calculation unit continuously computes rotation angles as the device moves to different positions and orientations, and the image correction unit dynamically applies appropriate correction parameters, enabling the simple projection device to maintain high-quality undistorted projection across multiple directions and positions
Solution Approach 2:
The system implements feedback through continuous orientation detection and calculation. The detection unit monitors device orientation, the angle calculation unit computes required corrections based on detected orientation, and the image correction unit applies corrections to the projection image. This closed-loop feedback ensures high-quality projection adapts automatically to any device position or orientation
3Use of energy by moving object
If existing dynamic projection solutions are used, then portability is achieved, but the solutions are power-intensive and prone to failure
Solution Approach 1:
The patent replaces complex mechanical projection adjustment mechanisms with a computational approach. Instead of using mechanically complex systems to physically adjust projection angles and correct distortion, the invention uses detection units, angle calculation algorithms, and image correction processing. This substitution reduces mechanical complexity and power consumption while improving reliability through software-based solutions
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
Enables convenient and high-quality dynamic projection with wide area coverage, reducing the complexity and power requirements associated with existing solutions, suitable for diverse applications like homes and stages.
Implementation Method 1
a reflection unit configured to reflect the projection picture to a target projection position
Data Source
AI summary
Embodiments of the present disclosure relate to the technical field of digital projection display, and disclose a dynamic projection device, a dynamic projection method, and a projector. The device includes: a projection unit configured to output a projection picture according to a projection image; a reflection unit configured to reflect the projection picture to a target projection position; an angle calculation unit connected with the reflection unit and configured to calculate a rotation angle of the reflection unit; and an image correction unit connected with the angle calculation unit and the projection unit, respectively, and configured to correct the projection image according to the rotation angle. The present disclosure adjusts the projection direction by controlling the reflection unit with simple structure and light weight, realizing convenient direction control and high-quality projection display, and covering a wide area of the projection environment.