Scroll Wheel Menu Control Device for Live Broadcast
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Solution Overview
Problem
Conventional live broadcast box control devices are not convenient for real-time control of menus on electronic devices, requiring multiple key operations for browsing and selecting items, which hinders efficient control of live broadcast atmospheres.
Innovation Solution
A menu control device featuring a roller module with a scroll wheel, encoder, switch element, and microprocessor that allows for quick and convenient operation of menus by rotating the scroll wheel to browse and select items, with illumination modules for visual feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional multiple key operations are used for menu browsing and selection, then control functionality is achieved, but operation convenience and efficiency deteriorate
Solution Approach 1:
The patent combines multiple control functions (browsing and selection) into a single scroll wheel component. The scroll wheel generates different signals based on rotation direction for browsing items and based on pressing action for selecting items, eliminating the need for separate keys and simplifying the control interface.
Solution Approach 2:
The scroll wheel serves multiple functions: it can rotate clockwise to select next items, rotate counter-clockwise to select previous items, and be pressed to confirm selection. This multi-functional design replaces multiple specialized keys with a single universal control element.
2Productivity
If multiple separate keys are used for browsing and selecting menu items, then control precision is maintained, but operation time and complexity increase
Solution Approach 1:
The patent merges browsing and selection operations into a single interactive component. The microprocessor distinguishes between rotation gestures (for browsing) and pressing gestures (for selection) from the same scroll wheel, reducing the number of操作步骤 and improving operational efficiency.
Solution Approach 2:
The patent replaces multiple mechanical keys with a single scroll wheel mechanism that uses encoding technology to detect different user intentions. The encoder converts physical gestures into digital signals that the microprocessor interprets as different commands, streamlining the control process.
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
Enhances user convenience by enabling single-scroll-wheel operation for menu control, expanding practicality and application through modular design, allowing infinite arrangements of components according to needs.
Implementation Method 1
Each encoder generates an encoding signal when the corresponding scroll wheel is rotated
Implementation Method 2
When an external pressing force is applied to one of the at least one scroll wheel and the corresponding elastic supporting arm is swung toward the corresponding switch element
Data Source
AI summary
A menu control device includes a casing and a roller module. The roller module is installed in the casing. The roller module includes a base, an elastic supporting arm, a scroll wheel, an encoder, a switch element and a microprocessor. The elastic supporting arm is connected with the base. The scroll wheel is pivotally coupled to the elastic supporting arm. The encoder is located beside the scroll wheel. The encoder generates an encoding signal in response to the rotation of the scroll wheel. When an external pressing force is applied to the scroll wheel, the elastic supporting arm is swung toward the switch element, and the switch element is triggered to generate a switching signal. The microprocessor performs an item browsing operation on a menu according to the encoding signal. The microprocessor performs an item selecting operation on the menu according to the switching signal.