Adaptive Frame Rate Image Sensing for Auto Clean Machine Positioning
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Solution Overview
Problem
Conventional auto clean machines face reduced image noise compensating accuracy due to shifting image signals caused by movement, which affects the correct calculation of the machine's location.
Innovation Solution
An image sensing system with a distance determining device that adjusts the frame rate of the image sensor based on the distance from the object, using a higher frame rate when closer and a lower frame rate when farther, to compensate for image noise effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed high frame rate is used for image sensing, then image noise compensation accuracy is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the frame rate adjustable based on operational conditions. The control unit dynamically changes the frame rate between first and second values depending on whether the auto-clean machine is in movement or stationary, resolving the contradiction between maintaining high measurement precision and reducing power consumption.
Solution Approach 2:
The patent changes the frame rate parameter based on the movement state of the auto-clean machine. When the machine is stationary, a higher frame rate is used to improve noise compensation accuracy; when moving, a lower frame rate reduces power consumption while maintaining sufficient imaging quality for location calculation.
2Use of energy by moving object
If a fixed low frame rate is used for image sensing, then power consumption is reduced, but image noise compensation accuracy deteriorates
Solution Approach 1:
The system dynamically adjusts the frame rate based on movement state. During stationary periods when high accuracy is needed, the frame rate increases to the first value, ensuring proper noise compensation without maintaining high power consumption during movement when lower accuracy suffices.
Solution Approach 2:
The frame rate parameter is changed based on operational requirements. The control unit switches between first and second frame rate values according to whether the machine is stationary or moving, optimizing the balance between power consumption and noise compensation accuracy for different operational phases.
3Use of energy by moving object
If the frame rate is adjusted based on distance, then power consumption is optimized, but device complexity increases
Solution Approach 1:
The patent implements feedback control where the control unit monitors the movement state (or distance) of the auto-clean machine and adjusts the frame rate accordingly. This feedback mechanism optimizes power consumption by matching frame rate to actual operational needs while managing complexity through a straightforward control logic that responds to detected conditions.
Data Source
AI summary
An image sensing system, comprising: a distance determining device, configured to determine whether a distance between an object and an electronic device comprising the image sensing system is larger than a distance threshold or not; and an image sensor, comprising at least one image sensing unit, wherein the image sensor senses images with a first frame rate when the distance is smaller than the distance threshold and senses the images with a second frame rate when the distance is larger than the distance threshold, wherein the first frame rate is different from the second frame rate.