RFID Tool Identification for Automatic Food Processor Speed Control
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Solution Overview
Problem
Existing multifunctional food processing devices for professional use face challenges in reliably adjusting drive speed for different tools and operations, particularly due to variability in tool movement and the need for initialization phases, which can lead to suboptimal performance and safety issues.
Innovation Solution
The device incorporates a mode selector for manual or automatic speed adjustment, utilizing RFID tags for tool identification and a transmitter/receiver for radiofrequency signals to automatically detect the tool type, eliminating the need for initialization and ensuring compatibility with the type of tool, product, and location within the processing line, thereby optimizing drive speed and operational safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If magnetic identification means are used with initialization phase, then tool identification is possible, but the device requires no-load driving time and reduced reliability for planetary movements
Solution Approach 1:
The patent applies preliminary action by pre-storing identification data (such as tool type, optimal speed parameters, and operational characteristics) in a memory device during manufacturing. This eliminates the need for runtime initialization and no-load driving phases, as the system immediately retrieves pre-prepared information when a tool is installed, thereby resolving the time loss issue while maintaining reliable identification.
Solution Approach 2:
The patent replaces the magnetic field-based detection system (which requires physical proximity and suffers from reliability issues during planetary movements) with an electronic data storage and retrieval system. By using RFID tags, barcodes, or other electronic identification means coupled with a memory device, the system achieves reliable tool identification without dependence on mechanical position or magnetic field strength variations.
2Adaptability or versatility
If magnetic detection is used for tool identification, then tool type can be detected, but the minimum distance between magnet and detector varies and reduces reliability
Solution Approach 1:
The patent introduces an intermediary electronic identification element (such as an RFID tag, barcode label, or electronic sensor) that mediates between the tool and the detection system. This intermediary provides a stable, position-independent identification interface that does not suffer from the distance and orientation variability problems inherent in direct magnetic detection, thereby maintaining adaptability while improving reliability.
Solution Approach 2:
The patent substitutes the magnetic field-based mechanical detection system with an electronic data communication system. By using electronic identification means that can be read from a fixed position or through contactless communication, the system eliminates the reliability issues caused by varying distances and orientations during planetary movements, while maintaining the ability to identify different tool types.
3Ease of operation
If manual speed adjustment is used, then user control is flexible, but speed selection errors may occur
Solution Approach 1:
The patent implements feedback by automatically detecting the installed tool's identification data and using this information to pre-set or suggest the appropriate operating speed. The system provides feedback to the user about the detected tool type and recommended parameters, allowing the user to confirm or adjust the settings. This combines automatic accuracy with manual flexibility, reducing selection errors while preserving user control.
Solution Approach 2:
The patent applies self-service by enabling the system to automatically determine the appropriate operating parameters based on the detected tool identification. The system serves itself by retrieving stored information about the tool type and automatically configuring optimal speed settings, thereby eliminating the need for manual speed selection and preventing user errors while maintaining operational flexibility through user confirmation options.
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
This solution enables automatic and reliable adjustment of drive speed for various tools and operations, enhancing operational safety and reducing the risk of adjustment errors, ensuring compliance with strict health standards in collective catering, while allowing for versatile and flexible use.
Implementation Method 1
means for sending and detecting radiofrequency signals in order to identify the tool
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The apparatus has a processing tool (3) mounted with respect to a fixed base (1) and provided with a radiofrequency identification tag (21). A control unit is constituted of an on push button (11), off push button (12), speed selection button (13), reader (15) and controller (17). The control unit controls a drive shaft (5), which drives the processing tool, and the reader is communicated with the tag. The tool is selected from a group of a manual food processor disk, rasp disk, food processor`s razor clam, beater tool, peeler plate, beater whisk and hand held blender tool. An independent claim is also included for a tool for a food processing apparatus.