Projection Device Sound Signal User Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Oblique projection technologies fail to adjust the display direction of projected images according to user viewing requirements, leading to inconvenient and unfriendly human-computer interaction.
Innovation Solution
A projection method and device that acquires sound signals from users to determine their positional relationship with the projector, automatically adjusting the projected image orientation to meet viewing requirements, using a microphone array and processor to control the projection module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If oblique projection technology is used to project images at any angle without coordinating the desktop or curtain, then projection efficiency is improved, but the display direction of the projected image does not meet user viewing requirements
Solution Approach 1:
The patent applies dynamics by making the projection device's orientation adjustable rather than fixed. The projection device can dynamically change its projection angle and direction to match the user's viewing position, resolving the contradiction between maintaining fixed efficient projection and adapting to varying user needs. This is achieved through mechanisms that allow the projection device to rotate or tilt to optimal angles.
Solution Approach 2:
The patent changes the projection parameters (angle, direction, orientation) based on detected user position. By varying these parameters dynamically, the system maintains high projection efficiency while ensuring the displayed image orientation always matches user viewing requirements. The projection parameters are adjusted in real-time according to user location feedback.
2Stability of the object's composition
If the user needs to adjust the viewing position to view a normal projected image, then the projection device maintains fixed projection orientation, but human-computer interaction convenience deteriorates
Solution Approach 1:
The patent implements feedback by using detection devices (such as cameras or sensors) to monitor user position and providing this information back to the control system. The control system then adjusts the projection device's orientation based on this feedback, creating a closed-loop system that automatically adapts to user needs while maintaining overall system stability. This eliminates the need for users to manually adjust their viewing positions.
Solution Approach 2:
The projection device performs self-adjustment of its orientation based on detected user position, eliminating the need for manual user intervention. The system serves itself by automatically detecting when orientation adjustment is needed and executing the adjustment, thereby improving interaction convenience without requiring users to understand or manipulate complex controls.
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 users to view upright projected images by sending a sound signal, improving convenience and friendliness in human-computer interaction by automatically adjusting the image orientation based on user position.
Implementation Method 1
acquire a sound signal emitted by a user; perform locating to determine a positional relationship between the user and the projection device according to the sound signal
Data Source
AI summary
The disclosure provides a projection method and projection device. The method comprises: acquiring a sound signal sent by a user; performing locating to determine a positional relationship between the user and the projection device according to the sound signal sent by the user; determining a projected image orientation meeting viewing requirements of the user according to the positional relationship between the user and the projection device; and projecting an image to be projected onto a projection plane according to the projected image orientation. By use of the projection method provided by the disclosure, the projected image orientation may be automatically adjusted according to the viewing requirements of the user, and convenience and friendliness for human-computer interaction may be improved.