Liquid Handling Workstation Interface for Intuitive Control
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Solution Overview
Problem
Existing computer-controlled liquid handling workstations require complex programming scripts for executing liquid handling actions, making them difficult to operate intuitively and efficiently, especially for simpler tasks.
Innovation Solution
A method for remote control of a computer-controlled liquid handling workstation using a user-friendly interface with visualization and input means, allowing selection and confirmation of pipette actions and positions through icons or virtual switches, enabling immediate execution of commands without pre-programmed scripts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If complex programming scripts are used to control liquid handling workstations, then the system can execute precise and complex liquid handling actions, but the ease of operation deteriorates making the system difficult to operate intuitively
Solution Approach 1:
The patent creates a visual copy or representation of the physical liquid handling system on the touchscreen display. Users interact with graphical icons representing pipettes, containers, and actions rather than writing code. This visual interface copies the essential elements of the physical system, allowing intuitive control without programming knowledge while maintaining the precision of the underlying complex system.
Solution Approach 2:
The touchscreen interface acts as an intermediary layer between the user and the complex liquid handling robot. Instead of directly programming the robot's movements and actions, users interact with simplified graphical representations that translate into precise robotic commands. This intermediary interface shields users from complexity while enabling control of sophisticated functions.
2Productivity
If pre-programmed scripts are required for liquid handling tasks, then automation can be achieved, but the productivity deteriorates due to time-consuming script preparation
Solution Approach 1:
The system performs preliminary actions by automatically generating and executing control commands in real-time based on user selections rather than requiring pre-written scripts. When a user selects a container and action on the touchscreen, the system immediately prepares and executes the appropriate commands, eliminating the time-consuming script preparation phase while maintaining automated execution.
Solution Approach 2:
The interface transitions from static pre-programmed scripts to dynamic real-time control. Users can select and modify actions directly on the touchscreen during operation, allowing the system to adapt to changing requirements without reprogramming. This dynamic approach enables immediate execution of tasks while maintaining flexibility for modifications.
3Ease of operation
If a simple touchscreen interface is used for control, then ease of operation improves, but the measurement precision deteriorates making it difficult to accurately define liquid handling parameters
Solution Approach 1:
The touchscreen interface presents users with pre-configured action options and parameters rather than requiring definition of every detail. The system provides sufficient information and control options for precise liquid handling while hiding unnecessary complexity. Users perform partial actions by selecting from predefined options, which the system then executes with full precision.
Data Source
AI summary
A control method for a computer-controlled liquid handling workstation which comprises a work surface, a motorized liquid handling robot with at least two pipettes each having a cone, and a control computer, to which the liquid handling robot is connected. A control program, activated in the control computer, enables the pipetting robot to position the pipette at specific positions on the work surface. The pipettes and at least one position are visualized as icons, using a visualization device. Upon selecting at least one pipette and designating a position, using an input mechanism, the selected pipette is moved down and up immediately after its selection, and moved to the designated position immediately after designating the position. These movements are carried out prior to selecting at least one action and its execution, enabling the operator to confirm the selection of the pipette and the designation of the position.