Dynamic Resolution Control for Gesture Detection Sensors
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Solution Overview
Problem
Existing electronic apparatuses face challenges in detecting gestures while maintaining low power consumption, as high-resolution detection is required for gestures but increases power consumption, and current methods are inefficient in switching between person detection and gesture detection modes.
Innovation Solution
An electronic apparatus with a detection sensor that adjusts its resolution based on the presence of a person or a gesture, using a detection sensor to output a detection signal, an object detection unit to identify objects, and a detection resolution control unit to switch between low and high resolution modes depending on the detection mode, allowing for efficient gesture detection while minimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-resolution detection is used to detect gestures, then detection precision is improved, but power consumption increases
Solution Approach 1:
The detection sensor dynamically switches between low-resolution mode (for person detection) and high-resolution mode (for gesture detection) based on the current operational requirement. This dynamic adjustment allows the system to use high resolution only when necessary for gesture detection, while consuming less power during person detection phases.
Solution Approach 2:
The system changes the detection resolution parameter of the sensor based on the detection task. When a person is detected, the system switches to low-resolution mode to reduce power consumption. When gesture detection is required, the system switches to high-resolution mode to ensure accurate gesture recognition.
2Use of energy by moving object
If low-resolution detection is used to detect persons, then power consumption is reduced, but detection precision is insufficient for gestures
Solution Approach 1:
The system dynamically adjusts the detection resolution based on the current task. The object detection unit first uses low-resolution detection to identify persons, and when a person is detected, the system transitions to high-resolution detection for gesture recognition, ensuring both power efficiency and detection accuracy.
Solution Approach 2:
The system performs preliminary person detection using low-resolution mode before switching to high-resolution mode for gesture detection. This preliminary action allows the system to avoid continuous high-resolution operation, thereby reducing overall power consumption while maintaining the capability for accurate gesture detection when needed.
3Measurement precision
If continuous high-resolution detection is used, then gesture detection accuracy is improved, but power consumption increases continuously
Solution Approach 1:
The system uses periodic switching between low-resolution and high-resolution detection modes. The detection resolution control unit periodically evaluates whether gesture detection is needed and switches modes accordingly, rather than maintaining continuous high-resolution operation. This periodic action reduces average power consumption while maintaining gesture detection accuracy when required.
Solution Approach 2:
The detection system dynamically adjusts its operational state between low-power person detection mode and high-power gesture detection mode. This dynamic state adjustment ensures that high resolution is applied only during the necessary periods for gesture detection, preventing continuous high power consumption.
4Use of energy by moving object
If detection resolution is switched between modes, then power consumption is optimized, but system complexity increases
Solution Approach 1:
A single detection sensor is designed to perform multiple functions by switching between low-resolution and high-resolution modes. The same sensor hardware is used for both person detection and gesture detection, eliminating the need for separate sensors and reducing overall system complexity despite the added control logic for mode switching.
Solution Approach 2:
The patent combines person detection and gesture detection functions into a single integrated detection system. The object detection unit and gesture detection unit share the same detection sensor, and the detection resolution control unit manages both functions. This merging reduces system complexity compared to using separate dedicated sensors for each function.
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 the detection of gestures while maintaining low power consumption by switching to high-resolution mode only when necessary, improving detection accuracy and reducing overall power consumption by defaulting to low-resolution mode for person detection.
Implementation Method 1
a detection sensor that detects a wave motion coming from an object present within a predetermined range and outputs a detection signal
Data Source
AI summary
An electronic apparatus includes: a detection sensor which detects a wave motion coming from an object present within a predetermined range and outputs a detection signal; an object detection unit which detects an object present within the predetermined range based on the detection signal output from the detection sensor; a gesture detection unit which detects a gesture according to the movement of the object based on the detection signal output from the detection sensor; and a detection resolution control unit which sets the detection resolution of the detection sensor to a first resolution when detecting the object present within the predetermined range, and sets the detection resolution of the detection sensor to a second resolution higher in resolution than the first resolution when detecting the gesture.