RFID-Guided Dispensing Head Attachment for Chemical Containers
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Solution Overview
Problem
Conventional dispensing systems for filling and emptying liquid chemicals require significant personnel effort and risk exposure, and image processing systems for automated attachment are complex, expensive, and susceptible to interference.
Innovation Solution
A dispensing system using an RFID chip on the container and a robot with an integrated RFID reading unit and tactile sensor for precise positioning and attachment/detachment of dispensing heads, eliminating the need for manual operation and reducing system complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual attachment of dispensing heads is used, then personnel effort and risk of chemical exposure are reduced, but automation is insufficient and efficiency is low
Solution Approach 1:
The patent replaces complex optical image processing systems with a simpler RFID-based detection system. The RFID reading unit automatically detects container positions and identifies containers through radio frequency signals, eliminating the need for complex image capture, processing, and analysis hardware and software, thus reducing device complexity while maintaining high automation.
Solution Approach 2:
The system enables automated self-service operation where the robot autonomously navigates to containers, detects their positions via RFID signals, attaches dispensing heads, and returns without human intervention. This self-service capability achieves full automation while keeping the system relatively simple by leveraging autonomous robot navigation and RFID automatic identification.
2Extent of automation
If image processing systems are used for automated attachment, then automation is achieved, but the system becomes complex and expensive with susceptibility to interference
Solution Approach 1:
The patent substitutes optical image processing with RFID electromagnetic field-based detection. RFID signals operate at radio frequencies that are not affected by visible light interference, contamination, or stray light, providing robust automated detection that is immune to the harmful factors that plague optical systems.
3Productivity
If multiple containers are processed, then productivity increases, but personnel effort and operational complexity increase significantly
Solution Approach 1:
The robot performs autonomous navigation to multiple containers, automatically detects their positions using RFID signals, attaches dispensing heads, and returns without human intervention. This self-service capability allows the system to process multiple containers sequentially without increasing operational complexity, as each container is handled through the same automated routine.
Solution Approach 2:
The RFID reading unit provides real-time feedback on container positions and identities, allowing the robot's control system to automatically adjust navigation and attachment operations. This feedback mechanism enables the robot to handle multiple containers autonomously without requiring complex manual coordination, maintaining ease of operation while increasing productivity.
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 fully automated, cost-effective, and interference-resistant operation of dispensing systems, ensuring safe and efficient attachment and detachment of dispensing heads, even in systems with multiple containers.
Implementation Method 1
A measuring head (14) is attached to a movable robot arm (11), containing a coil of an RFID reading unit. The RFID reading unit reads a code from the RFID chip when the chip is within its reading range.
Implementation Method 2
The measuring head (14) is equipped with at least one tactile sensor that can detect the contours of the container.
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
The invention relates to a dispensing system (1) with at least one container (2) having a container opening (6) to which a dispensing head (4) can be connected, so that liquid (3) can be dispensed from the container (2) or liquid (3) can be supplied to the container (2) by means of the dispensing head (4). The dispensing head (4) can be automatically mounted on the container opening (6) by means of a robot (10). An RFID chip (9) is provided on the container (2) in the area of the container opening (6). A measuring head (14) can be attached to a movable robot arm (11), in which a coil (15) of an RFID reading unit is provided. The RFID reading unit can read a code from the RFID chip (9) when it is within the reading range of the RFID reading unit, whereby when the code is read, it is received as a positioning signal in a control unit (12) of the robot (10), on the basis of which the removal head (4) can be positioned at the container opening (6).