Digital Speedometer Display With Smooth Digit Transitions
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Solution Overview
Problem
Existing digital speedometers experience abrupt number changes during speed transitions, leading to visual flickering and potential distraction, which can be dangerous while driving, and require significant space and higher costs for smooth analog simulation.
Innovation Solution
Implement a digital display with animated number transitions using Bezier curves and particle systems to create smooth number changes, reducing space requirements and computational costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a digital display with abrupt number changes is used, then the display is simple and space-efficient, but the visual stability deteriorates causing flickering and distraction
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing multiple intermediate states between digit transitions. Before an abrupt number change occurs, the system prepares a sequence of intermediate digit states that will be displayed in succession, smoothing the transition and eliminating flickering while maintaining a relatively simple display structure.
Solution Approach 2:
The patent implements dynamics by transitioning from static digit display to dynamic intermediate state display. The system dynamically generates and displays multiple intermediate states between digit changes, creating a smooth visual transition that maintains stability while keeping the overall display mechanism simple.
2Stability of the object's composition
If a delay is implemented between digit changes, then visual stability improves, but measurement precision deteriorates due to inaccurate current value display
Solution Approach 1:
The patent uses an intermediary approach by introducing intermediate digit states that serve as mediators between the actual speed value and the displayed value. These intermediate states provide continuous visual feedback during transitions, maintaining both visual stability and measurement precision by showing approximate values during the transition process rather than delaying the display.
3Stability of the object's composition
If a bar display with numerous segments is used to simulate analog meter, then visual stability improves, but device complexity and cost increase
Solution Approach 1:
The patent applies copying by creating a simplified digital representation of analog meter behavior through intermediate digit states. Instead of physically copying an analog meter with numerous segments, the system copies the smooth transition effect using minimal digital elements, achieving visual stability without the complexity and cost of a full analog-style bar display.
4Stability of the object's composition
If numerous display segments are used for smooth analog simulation, then visual stability improves, but manufacturing cost increases
Solution Approach 1:
The patent uses cheap short-living objects by employing simple intermediate digit states that are generated and discarded in rapid succession. These temporary display states provide the smooth transition effect without requiring permanent, expensive physical segments, significantly reducing manufacturing costs while maintaining visual stability.
Data Source
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AI summary
The present invention is a speedometer display to avoid abrupt changes of numbers. A digital display in speedometer includes a set of control points (20, 21) which forms numbers by twisting, winding, moving, and so on to form digits. This type of transition results in providing a pleasant display to a user and a smooth transition between digits. The space of display is also reduced, and the cost of implementing the same is minimal. The presentation of the number transition is further extended to various forms like a thread forming into digits, bursting and converging of digits, dots joining to form digits, smoky digits and calendar type (flipping) of numbers. The speedometer can be used in all systems with digital display units and all the vehicles using a digital display.