Smart Plug Automatic Device Detection via Power Signature Analysis
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Solution Overview
Problem
Existing smart plugs can only measure consumption power and require manual registration of electronic devices, making it difficult to detect changes in device connections and providing accurate power consumption information, especially when device combinations change.
Innovation Solution
A smart plug system that determines if trained data exists for a connected device, performs training to acquire active, reactive power, and power factor information if necessary, and stores this data for automatic detection and adjustment of changes, minimizing user intervention and ensuring reliable power consumption data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual registration of electronic devices is required, then device connection information can be recorded, but user intervention time and operational complexity increase
Solution Approach 1:
The smart plug automatically detects and registers electronic devices by measuring power consumption characteristics without requiring manual user input. The system performs self-learning by analyzing power usage patterns to identify and store device information autonomously
Solution Approach 2:
The patent replaces manual registration operations with automatic power consumption analysis. By measuring electrical parameters and comparing them against a database, the system substitutes human intervention with automated detection and identification processes
2Device complexity
If simple power consumption measurement is used, then the smart plug structure remains simple, but device identification capability is insufficient
Solution Approach 1:
The smart plug performs multiple functions including power consumption measurement, device identification, and automatic registration using a single integrated system. The power measurement unit serves both to quantify energy usage and to identify devices through characteristic power consumption patterns
Solution Approach 2:
The patent introduces a database as an intermediary between power measurement and device identification. The database stores power consumption characteristics of various devices, enabling the smart plug to identify devices by comparing measured values against stored reference data
3Stability of the object's composition
If device changes are not automatically detected, then system operation remains stable, but power consumption data accuracy deteriorates
Solution Approach 1:
The smart plug continuously monitors power consumption and compares it with registered device profiles to detect changes in connected devices. When deviations are detected, the system automatically updates device information to maintain data accuracy
Solution Approach 2:
The system performs preliminary registration of device power consumption characteristics during initial connection. This pre-established baseline enables subsequent automatic detection of device changes through comparison with the registered data
Data Source
AI summary
The present invention relates to a method and an apparatus for detecting, from a smart plug, an electronic device connected to the smart plug, and more specifically, to a method and an apparatus for detecting a change in an electronic device connected to a smart plug. A method, according to one embodiment of the present invention, is the method for detecting a connected electronic device from the smart plug and comprises the steps of: inspecting whether pre-trained data is present when the an electronic device is connected; inspecting whether the connected electronic device and the pre-trained data match when the pre-trained data is present; a training step of obtaining information on valid power, invalid power, and power factor when the connected electronic device and the pre-trained data do not match; and saving trained data after the training is complete.