Pivotable Display Inclination Angle Determination
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Solution Overview
Problem
Existing goods processing apparatuses, such as franking machines, face challenges in accurately determining and maintaining the inclination angle of pivotable displays, particularly at extreme angles, due to non-linear trigonometric conversions and limited precision from acceleration sensors.
Innovation Solution
A system and method that utilizes a controller with an inclination sensor to measure and store the angle of a pivotable display, allowing motorized adjustment and manual override, with overload protection to prevent damage, and precise conversion of acceleration values into inclination angles using trigonometric functions and weighted averages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of display inclination is used, then ease of operation is improved, but measurement precision deteriorates due to inability to accurately determine extreme angles
Solution Approach 1:
The patent replaces manual mechanical angle determination with an electronic acceleration sensor-based measurement system. The controller uses trigonometric conversion of acceleration sensor signals to calculate the display's inclination angle, enabling precise measurement even at extreme angles without relying on manual estimation or mechanical indicators.
Solution Approach 2:
The patent introduces an acceleration sensor as an intermediary device between the display mechanism and the controller. This sensor mediates the measurement process by converting physical inclination into electrical signals that the controller can process, thereby achieving accurate angle determination that neither manual operation nor direct mechanical measurement could provide.
2Measurement precision
If motorized adjustment is used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent implements a self-service measurement system where the acceleration sensor automatically continuously measures the display's inclination angle without requiring external intervention. The controller automatically processes the sensor signals and calculates the angle, eliminating the need for complex manual calibration mechanisms or additional control hardware while maintaining high measurement precision.
Solution Approach 2:
The acceleration sensor serves multiple functions: it measures inclination angle, detects extreme positions, and provides data for controller decision-making. This multi-functionality reduces the need for separate sensors or mechanisms for each function, thereby simplifying the overall device complexity while maintaining measurement precision.
3Measurement precision
If acceleration sensor is used for angle determination, then measurement precision is improved, but reliability deteriorates at extreme angles due to non-linear trigonometric conversion
Solution Approach 1:
The patent applies partial action by using the acceleration sensor's data selectively - it continuously monitors inclination but the controller specifically processes this data to determine extreme positions only when thresholds are approached. This selective processing reduces the impact of non-linear conversion errors at extreme angles while maintaining measurement precision in the normal operating range.
Solution Approach 2:
The patent implements feedback by continuously monitoring the acceleration sensor data and using it to control the display's movement. The controller adjusts the display position based on real-time sensor feedback, compensating for non-linear conversion effects and ensuring reliable operation even at extreme angles through dynamic correction.
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
Enables accurate determination and reproducible adjustment of the display's inclination angle, improving user experience by optimizing the viewing position and reducing the risk of damage from manual force, while allowing finer gradations in angle adjustment.
Implementation Method 1
The inclination sensor is configured to measure the inclination angle of the component and provide a digital measured value for each axis to the processor
Data Source
AI summary
A goods processing apparatus can include a pivotable display, a sensor, and a controller. The sensor detects an angle of inclination of the pivotable display. The pivotable display is rotatable about a x-axis of a Cartesian coordinate system. The sensor is disposed on the pivotable display and includes respective transducers at least in a direction of a y-axis and a z-axis of the Cartesian coordinate system. The sensor generates respective digital measured values for each of the y-axis and the z-axis. The controller processes the two digital measured values to derive the angle of inclination of the pivotable display based on the two digital measured values, and stores, in a memory of the goods processing apparatus, the derived angle of inclination.