Interactive Projection System With Wireless Touch Light Source
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current projection systems with touch functions are limited by the integration of modules, resulting in fixed projection sizes and restricted usage environments, with ultra-short focus lenses being expensive and touch functions only applicable to specific surfaces like desktops, not allowing for larger projection sizes or use on walls.
Innovation Solution
An interactive projection system comprising a projector and a touch interactive light source device with infrared and visible light source modules, a control module, and a wireless signal transmission module, allowing for independent operation and adjustable installation, enabling larger projection sizes and versatile surface interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the projector, infrared light-emitting module, and infrared camera module are integrated into one device, then the touch function can be achieved, but the projection size is fixed and cannot be enlarged
Solution Approach 1:
The patent divides the integrated projection system into separate functional modules: a projector for projection, a touch interactive light source device with infrared light-emitting modules for touch sensing, and a camera module for detection. This segmentation allows each module to be optimized independently, enabling larger projection sizes without being constrained by an integrated design.
Solution Approach 2:
The touch interactive light source device is designed as a separate portable unit that can be placed on various surfaces (desktops, walls, whiteboards) to provide touch functionality. This universal design allows the same device to enable touch interaction across different projection surfaces and environments, enhancing adaptability without requiring integration into the projector.
2Adaptability or versatility
If the projector, infrared light-emitting module, and infrared camera module are integrated into one device, then the touch function can be achieved, but the touch function is limited to specific environments such as desktops
Solution Approach 1:
By separating the touch interactive light source device from the projector, the system allows the light source device to be independently positioned on various surfaces including walls, whiteboards, and desktops. This segmentation enables the touch function to adapt to different environments and surfaces without being constrained by an integrated projector design.
Solution Approach 2:
The touch interactive light source device is designed as a portable unit that can be dynamically repositioned on different surfaces and orientations. The device includes components for adjusting its position and angle, allowing it to adapt to various usage scenarios such as wall projection, whiteboard interaction, and desktop use, thereby enhancing environmental flexibility.
3Area of stationary object
If an ultra-short focus lens is used to achieve larger projection size, then the projection size can be enlarged, but the lens becomes expensive
Solution Approach 1:
The patent separates the projection function from the touch sensing function into independent modules. The projector can use a standard focus lens instead of an expensive ultra-short focus lens, as the touch interactive light source device is positioned separately to provide touch functionality. This segmentation allows cost-effective lens selection while maintaining large projection size capability.
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
The system achieves larger projection sizes, lower costs, and increased flexibility in usage environments, allowing touch interaction on various surfaces such as desktops, walls, or whiteboards, using a general focal length lens and portable touch interactive light source devices.
Implementation Method 1
The infrared light source module is configured to generate an infrared light curtain parallel to the projection surface
Implementation Method 2
the control module receives an infrared light beam reflected by the object through the camera module
Data Source
AI summary
An interactive projection system including a projector and a touch interactive light source device is provided. The projector includes a projection optical engine, a camera module, and a control module. The touch interactive light source device includes at least one infrared light source module and a wireless signal transmission module. The control module is electrically connected to the projection optical engine and the camera module, and controls the touch interactive light source device through the wireless signal transmission module, so that the touch interactive light source device is placed in a recommended installation position and the interactive projection system is in an interactive mode. An operation method of the interactive projection system is also provided.