Direct current load identification system
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Solution Overview
Problem
The use of a single controller with multiple personalities for various dishwasher models consumes significant memory and surface area and complicates the manufacturing and assembly process, leading to time-consuming and expensive manual selections, with potential operational failures if the wrong personality setting is chosen.
Innovation Solution
A direct current load sensing system that includes a current sensing circuit and processors to identify attributes of the DC load based on electrical data, allowing for automatic activation of operations without the need for manual personality selection, thereby simplifying the design and manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single controller with multiple personalities is used to support various dishwasher models, then the controller can be universally applied across different models, but the memory consumption and surface area of the controller increase significantly
Solution Approach 1:
The patent extracts the personality identification data from the controller's memory and stores it externally in a database. The controller only retains minimal identification code rather than complete personality configurations, significantly reducing memory consumption while maintaining the ability to support multiple dishwasher models through external data retrieval.
Solution Approach 2:
The patent introduces a database as an intermediary between the controller and the complete personality data. The controller communicates with the database to retrieve personality information as needed, eliminating the need to store all personality data locally in the controller's memory.
2Adaptability or versatility
If a single controller with multiple personalities is used to support various dishwasher models, then the controller can be universally applied across different models, but the controller surface area increases
Solution Approach 1:
The patent extracts personality data storage from the controller to an external database, allowing the controller to be physically smaller. The controller only needs to store minimal identification codes and communication protocols rather than complete personality configurations, reducing its surface area.
Solution Approach 2:
The patent creates a universal controller design that can adapt to different dishwasher models through software configuration rather than hardware variations. This single controller design serves multiple models by retrieving appropriate personality data from the database, eliminating the need for multiple specialized controller versions.
3Reliability
If manual personality selection is performed during controller installation, then the correct personality can be selected for the specific dishwasher model, but the manufacturing and assembly process becomes time-consuming and expensive
Solution Approach 1:
The patent enables the controller to automatically identify the dishwasher model and select the appropriate personality without human intervention. The controller reads identification codes from the dishwasher and autonomously retrieves and configures the correct personality data from the database, eliminating manual selection steps.
Solution Approach 2:
The patent pre-configures personality data in an external database organized by dishwasher model identification codes. During installation, the controller quickly queries this pre-organized database rather than requiring manual selection, significantly speeding up the installation process while maintaining accuracy.
4Adaptability or versatility
If multiple personalities are stored on the controller, then different dishwasher models can be supported, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent extracts personality data storage from the controller hardware to an external database infrastructure. This allows manufacturers to produce a single standardized controller design that can support multiple dishwasher models, simplifying the manufacturing process and reducing tooling costs while maintaining model-specific functionality through external data.
Solution Approach 2:
The patent segments the personality data from the controller hardware, storing configuration data externally in a database while keeping the controller itself standardized and simplified. This separation allows independent optimization of the controller manufacturing process while maintaining the ability to support multiple models through data configuration.
Data Source
AI summary
An appliance, as provided herein, can include a direct current load and a current sensing circuit that can be coupled to the direct current load. The current sensing circuit can be configured to collect electrical data corresponding to the direct current load. The appliance can include one or more processors that can be coupled to the current sensing circuit. The one or more processors can be configured to identify at least one attribute of the direct current load based, at least in part, on the electrical data and activate at least one operation of the direct current load or the appliance based, at least in part, on identification of the at least one attribute of the direct current load.