Motion-Sensing Control Knob for Space-Saving Mode Selection
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Solution Overview
Problem
Control panels of machines face challenges in optimizing spatial utilization without compromising ease and speed of operation, particularly in compact designs, and there is a need to reduce power wastage in battery-powered appliances.
Innovation Solution
A control knob with an attachment surface, an electronic display module, a motion sensor, an operational mode display controller, and an operational mode selector that allows for rotational movement and touch input to display and select operational modes, featuring a motion sensor to switch between active and sleep modes, and potentially including a touchscreen, vibration, sound, and wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple control knobs are disposed on a control panel to control various operational modes, then the machine can control multiple operational modes, but the control panel space is excessively occupied
Solution Approach 1:
The patent combines multiple control functions (rotational control, pressing control, and display functions) into a single integrated control knob assembly. The operational mode display controller can rotate to display different operational modes, while the operational mode selector can be pressed to confirm selections. The electronic display module provides visual feedback. This merging of multiple control mechanisms into one compact unit reduces the space required on the control panel while maintaining the ability to control multiple operational modes.
Solution Approach 2:
The control knob assembly serves multiple functions: the operational mode display controller can rotate to select different operational modes, the operational mode selector can be pressed to confirm selections, and the electronic display module can display information. This multi-functional design allows a single control unit to replace what would traditionally require multiple separate control knobs, thereby reducing control panel space while maintaining versatility.
2Ease of operation
If the electronic display module remains in active mode to display operational modes, then the user can easily view and select modes, but power is excessively consumed
Solution Approach 1:
The electronic display module operates in periodic cycles between active and sleep modes. The motion sensor detects user approach and triggers the display to wake from sleep mode to active mode. When the user moves away, the display returns to sleep mode to conserve power. This periodic activation based on user presence ensures the display is visible when needed while minimizing power consumption during idle periods.
Solution Approach 2:
The motion sensor automatically detects user presence and triggers the electronic display module to switch between active and sleep modes without requiring manual user intervention. The system self-regulates its power consumption based on detected motion, waking up when a user approaches and returning to sleep mode when no motion is detected, thereby balancing visibility needs with power conservation.
3Use of energy by moving object
If a motion sensor is added to enable automatic wake-sleep mode switching, then power consumption is reduced, but the device complexity increases
Solution Approach 1:
The motion sensor replaces what would traditionally be a manual wake-sleep control mechanism. Instead of requiring physical buttons or switches to activate the display, the system uses automatic motion detection to trigger wake-sleep transitions. This substitution of mechanical control with sensor-based automatic control reduces power consumption while the integrated design keeps the added complexity minimal.
Data Source
AI summary
A control knob for controlling operation of a machine, the control knob including: an attachment surface configured for attaching the control knob to a surface of the machine; a display member comprising an electronic display module disposed thereon; a motion sensor configured for sensing motion of the user's hand, said sensor being operably-connected to the display member such that, responsive to the motion sensor sensing motion of the user's hand, the display member is configured to switch operation from a sleep mode into an active mode; an operational mode display controller for controlling display of operational modes of the machine upon the electronic display module, said operational mode display controller being configured for rotational movement around the electronic display module amongst a plurality of rotational positions, said operational mode display controller being operably connected with the electronic display module such that, responsive to the rotational movement of the operational mode display controller amongst the plurality of rotational positions, the electronic display module is configured to display a plurality of operational modes of the machine corresponding to the plurality of rotational positions; and an operational mode selector for controlling selection of one of the plurality of operational modes of the machine when said one of the plurality of operational modes is displayed on the electronic display module, the operational mode selector being configured for depressible movement to actuate selection of the operational mode displayed on the electronic display module.