Electrical Load Grouping via Sensor-Based Power Change Detection
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Solution Overview
Problem
Existing electrical load grouping methods are time-consuming and prone to inaccuracies, especially when relying on manual identification or nearfield communication methods like Bluetooth.
Innovation Solution
An electrical load grouping device that uses electrical load sensors to measure parameters like power, voltage, or current, allowing for automatic grouping of electrical loads based on changed parameter values without the need for identifier information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual grouping or nearfield communication methods like Bluetooth are used for electrical load grouping, then identifier information can be obtained for grouping, but the grouping process becomes time-consuming and more complex
Solution Approach 1:
The patent replaces manual identification methods and nearfield communication (Bluetooth) with electrical parameter measurement-based grouping. Electrical load sensors measure parameters like power, voltage, or current to automatically identify and group electrical loads, eliminating the need for manual intervention or wireless communication protocols.
Solution Approach 2:
The system enables self-service grouping where electrical loads are automatically grouped based on their electrical parameter signatures without requiring active participation from the loads themselves. The grouping device autonomously measures parameters, identifies loads, and assigns them to groups without needing identifier information from the loads.
2Measurement precision
If identifier information is requested from electrical loads for grouping, then accurate identification is possible, but data traffic increases causing cross talk in power line communication
Solution Approach 1:
The patent substitutes identifier-based identification with electrical parameter-based identification. Instead of requesting digital identifiers from electrical loads through power line communication, the system measures physical electrical parameters (power, voltage, current) that inherently characterize each load, thereby avoiding additional data traffic and cross talk.
Solution Approach 2:
Electrical parameters serve as an intermediary that indirectly identifies electrical loads without requiring direct communication with them. The measurement of power, voltage, or current acts as a mediator that provides load identification information while avoiding the harmful effects of increased data traffic in the power line communication system.
Data Source
AI summary
The invention is directed to electrical load grouping based on measurements of an electrical parameter at electrical load sensors (120A, 120B). An electrical load grouping device (110) is configured for receiving a changed value of the electrical parameter from one or more of the electrical load sensors (120A, 120B) in reaction to a changed power consumption of a respective electrical load (132A, . . . , 134C). The electrical load grouping device (110) is further configured for assigning the respective electrical load (132A, . . . , 134C) to a group (130A, 130B) of electrical loads associated to an electrical load sensor (120A, 120B) or groups of electrical loads associated to electrical load sensors based on which electrical load sensor (120A, 120B) or which electrical load sensors measured the changed value of the electrical parameter received in reaction to the changed power consumption of the respective electrical load (132A, . . . , 134C).