LED Bar Graph Pump Interface for Cost Reduction
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Solution Overview
Problem
Pump systems often rely on large and costly liquid-crystal display (LCD) user-interfaces for operating motor systems, which is inefficient and expensive.
Innovation Solution
A user-interface utilizing a single bar graph of light-emitting diodes (LEDs) for providing visual feedback, along with a controller that includes a processor and memory to manage motor speed and duration settings through a plurality of indicators and inputs, allowing for efficient operation of the pump system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a liquid-crystal display (LCD) is used for the user-interface, then the interface can provide comprehensive visual information, but the interface becomes large and costly
Solution Approach 1:
The user interface is segmented into multiple functional components: a bar graph display for visual feedback, multiple LED indicators for status information, and discrete button inputs for control. This segmentation allows each component to be simple and inexpensive while collectively providing comprehensive information display and control capabilities, resolving the contradiction between information completeness and interface complexity
Solution Approach 2:
The bar graph display serves multiple functions: it provides visual feedback during programming, displays motor speed status, and shows run duration status. This multi-functionality eliminates the need for separate dedicated displays for each function, reducing overall interface complexity and cost while maintaining comprehensive information provision
2Loss of information
If a large LCD is used to provide comprehensive feedback, then visual information is complete, but the interface becomes expensive
Solution Approach 1:
The patent replaces expensive LCD technology with inexpensive LED components (bar graph and indicators). LEDs are significantly cheaper than LCDs while providing sufficient visual feedback for the application requirements. This substitution maintains information completeness while dramatically reducing manufacturing cost
Solution Approach 2:
Instead of using a single complex LCD to display all information, the patent uses multiple simple LED indicators that each represent specific parameters (speed, duration, status). This approach copies the information display function across multiple simple elements rather than concentrating it in one expensive component
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
The solution provides a cost-effective and efficient user-interface for operating pump systems, enabling precise control of motor speed and duration using a compact and affordable LED-based interface.
Implementation Method 1
A thin, low-cost user-interface for operating a pump system includes a single bar graph comprised of light-emitting diodes to provide visual feedback to an operator
Data Source
AI summary
A pump system including a motor, a user-interface, and a controller. The user-interface having a single bar graph comprised of light-emitting diodes to provide visual feedback to an operator. The bar graph is used for programming purposes and for providing a motor speed and run duration status to the operator.