Control of a portable food processing apparatus
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Solution Overview
Problem
Portable food processing apparatuses face challenges with complex and costly physical user interfaces, particularly in small form factors, and existing motion detection systems can lead to accidental activation of functions due to the need for users to memorize specific movements for operation.
Innovation Solution
A portable food processing apparatus with a microcontroller and motion sensors that recognize predefined motion patterns to control the motor, allowing intuitive operation and reducing accidental activation, with features like automatic termination and power management based on detected motions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If physical user interfaces (buttons, knobs, dials) are integrated into portable food processing apparatuses, then operational control is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent replaces mechanical user interfaces (buttons, knobs, dials) with a motion detection system using accelerometers and gyroscopes. The microcontroller interprets sensor data to detect predefined motion patterns, substituting mechanical control elements with electronic sensing and software-based control logic.
Solution Approach 2:
The system enables self-service operation where the apparatus automatically detects user intentions through motion patterns without requiring physical interface interactions. The motion sensor system and microcontroller work autonomously to interpret gestures and control motor functions based on detected motion patterns.
2Ease of operation
If simple motion detection is used for control, then ease of operation improves, but accidental activation of functions increases
Solution Approach 1:
The system performs preliminary validation by detecting and verifying complete motion patterns before activating functions. The microcontroller evaluates sensor data to confirm that the detected motion matches a predefined pattern, ensuring intentional user input before triggering operational changes.
Solution Approach 2:
The system incorporates feedback mechanisms where the microcontroller continuously monitors sensor data and evaluates whether detected motions correspond to predefined patterns. This evaluation process provides feedback validation, distinguishing between accidental motions and intentional control commands based on pattern recognition.
3Device complexity
If multiple functions are controlled by motion detection, then device complexity decreases, but user memorization requirements increase
Solution Approach 1:
The patent uses visual feedback through LED indicators to communicate operational states and recognized motion patterns to the user. Different LED configurations or colors can indicate different operating modes, providing intuitive visual information that reduces the need for memorization while maintaining multiple controllable functions.
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
Enhances user experience by allowing intuitive operation with reduced risk of accidental function activation, providing fine-grained control over the processing parameters, and ensuring safe operation through automatic termination and power management.
Implementation Method 1
the microcontroller is adapted to evaluate sensor data produced by the at least one motion sensor in order to detect a predefined motion pattern in said sensor data
Data Source
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AI summary
A portable food processing apparatus (10) is disclosed comprising a food processing chamber (20) including a blade arrangement (22) and a housing (30) comprising a motor (32) for driving said blade arrangement, a microcontroller (35) for controlling said motor and at least one motion sensor (34) communicatively coupled to said microcontroller. The microcontroller is adapted to evaluate sensor data produced by the at least one motion sensor in order to detect a predefined motion pattern in said sensor data, said predefined motion pattern corresponding to an operation setting of the motor; and control said motor in accordance with said operation setting upon detection of the predefined motion pattern.