Wearable Projector Frame Stabilization via Dynamic Displacement Adjustment
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Solution Overview
Problem
Wearable projector devices face challenges in stabilizing projected frames due to movement with the user's body, making it difficult to maintain a stable projection.
Innovation Solution
The wearable projector system includes a projector device with holding arms, signal generators, and a control unit that adjusts the projection direction based on position data received from a portable device, ensuring a stable and comfortable viewing experience by calculating and adjusting the displacement of the projector relative to the user's body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the projector device is made wearable and coupled to the user's body, then portability and convenience are improved, but the stability of the projected frame deteriorates due to body movement
Solution Approach 1:
The patent implements a dynamic adjustment mechanism where the projector device continuously tracks the relative position between the wearable projector and the portable device (e.g., smartphone). The control unit receives position information and dynamically adjusts the projection direction and frame parameters in real-time to compensate for body movements, transforming the static projection system into a dynamic one that adapts to user motion.
Solution Approach 2:
The system employs a feedback loop where the portable device captures position data of the projector relative to itself, transmits this information to the projector's control unit, which then adjusts the projection accordingly. This closed-loop feedback mechanism ensures that the projected frame remains stable and properly positioned despite movements of the user's body.
2Stability of the object's composition
If the projector device adjusts projection direction dynamically, then frame stability is improved, but device complexity increases due to additional sensors and control mechanisms
Solution Approach 1:
The patent merges the projector device with a wearable structure (such as a head-mounted display or glasses frame), integrating the projection functionality into an existing wearable platform. This combination allows the system to leverage the structural support and positioning capabilities of the wearable device while adding projection capabilities, thereby reducing overall system complexity compared to designing a completely new system.
Solution Approach 2:
The portable device (e.g., smartphone) serves multiple functions: it acts as a position sensor, communication device, and control unit. By utilizing the existing capabilities of the portable device for position tracking and communication, the system avoids adding dedicated sensors and control hardware to the wearable projector, thus reducing device complexity while maintaining frame stability.
Data Source
AI summary
A wearable projector system includes a projector device and a portable device communicated with the projector device. The wearable projector system includes at least one signal generator, a projector and a control unit. The signal generator transmits wireless signals. The projector outputs projection contents. The portable device includes a plurality of sensors and an operation unit. The sensors detect a position of the signal generator and generate a position signal. The operation unit determines an adjustment displacement of the projector device according to the position signal and generates an adjustment displacement signal representing a displacement between the projector device and the portable device. The control unit adjusts a projecting direction and a projected frame shape of the projector according to the adjustment displacement signal.