Interactive Touch System Gesture Recognition for Annotation and External Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In interactive touch systems, users face inconvenience when frequently switching between annotation functions and operating external digital audio-visual devices, particularly on large displays, as current systems require arm waving for touch switching, which is inefficient.
Innovation Solution
An operation judgment method that analyzes touch feature information to automatically determine the intended action and execute corresponding operations on either the interactive flat panel or external devices, eliminating the need for users to switch objects manually.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the annotation function is enabled on the interactive flat panel, then the user can annotate teaching content, but the user cannot operate the external digital audio-visual device through the touch unit
Solution Approach 1:
The system dynamically switches between annotation mode and external device operation mode based on touch position detection. When touch position is in the first preset area, the system enables annotation function; when touch position is in the second preset area, the system switches to operate the external digital audio-visual device. This dynamic switching resolves the contradiction by making the system adaptable to different operational needs without manual mode switching.
Solution Approach 2:
The touch position detection mechanism acts as an intermediary that automatically determines which function should be active based on where the user touches the screen. This intermediary mechanism eliminates the need for manual switching between annotation and external device operation modes, resolving the contradiction by providing seamless transition between functions.
2Adaptability or versatility
If the user frequently switches between annotation function and external device operation, then the user can perform both tasks, but the user must perform wide range arm waving to switch, which is inconvenient
Solution Approach 1:
The display screen is segmented into multiple preset areas (first preset area for annotation, second preset area for external device operation). By dividing the touch surface into distinct functional zones, the system enables intuitive function switching through localized touch positions rather than requiring wide arm waving gestures. This segmentation principle resolves the contradiction by making function switching as simple as touching different regions of the screen.
Solution Approach 2:
The system adds a spatial dimension (touch position on the screen) as the basis for function selection. Instead of requiring temporal switching through arm waving gestures, the system uses the spatial dimension of touch location to determine which function to activate. This dimensional change transforms the switching mechanism from a complex gesture-based system to a simple position-based system.
3Area of stationary object
If the display screen size is increased to 65 inches or more, then the display quality is improved, but the range of arm waving for touch switching becomes larger and more inconvenient
Solution Approach 1:
Different regions of the large display screen are assigned different functional qualities (first preset area for annotation, second preset area for external device operation). This local quality assignment allows users to access different functions by touching specific local areas rather than performing wide arm waving gestures across the entire large screen. The principle of local quality resolves the contradiction by making function access localized and convenient despite the large overall screen size.
Data Source
AI summary
An operation judgment method for an interactive touch system, which is applied by a first electronic device in cooperation with a second electronic device. The first electronic device receives a projected image from the second electronic device. The projected image is displayed on a display surface of the first electronic device. The operation judgment method includes steps S1 to S3. Step S1 generates a plurality of touch feature information corresponding to a plurality of touchpoints according to a touch action. Each touch feature information includes a plurality of eigenvalues, and the touch feature information is stored in a touch register module, wherein the first touch feature information of each touch action is the initial touchpoint. Step S2 sequentially analyzes the touch feature information to generate a first command or a second command. Step performs a corresponding operation according to the first command or the second command.