Indoor Power Line Quality Detection via Resistance Measurement
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Solution Overview
Problem
The existing technologies fail to effectively detect the quality and status of indoor power distribution lines, which can lead to accidental discharges and fires due to aging or improper laying, as users cannot visually assess the condition or grounding issues.
Innovation Solution
A detecting apparatus comprising a power input module, switch circuit, load circuit, and detecting module that measures voltage and current values to calculate the resistance of the power distribution line, determining its quality and status by comparing it to a reference resistance, and also checks for proper grounding of wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the indoor power distribution line is buried inside the building for a long time, then the building can be used for decades, but the indoor power distribution line may be aged due to long-term dampness or electric power application, making it difficult to detect quality degradation
Solution Approach 1:
The patent applies feedback by continuously monitoring the resistance of the indoor power distribution line and providing real-time information about its quality status. The detecting module measures resistance values and compares them against reference values to determine whether the power distribution line is aged or damaged, giving users feedback about the line's condition without requiring visual inspection.
Solution Approach 2:
The patent replaces mechanical/visual inspection methods with an electrical measurement system. Instead of requiring users to physically inspect or visually assess the power distribution line, the system uses electrical resistance measurement to detect aging and quality degradation, substituting a non-intrusive electrical detection method for traditional mechanical inspection approaches.
2Object-affected harmful factors
If the indoor power distribution line is aged or improperly laid, then fire risk increases due to accidental discharge, but users cannot know the status from the appearance of the building
Solution Approach 1:
The patent introduces an intermediary detection system that mediates between the power distribution line and the user. The detecting module acts as an intermediary that measures electrical resistance and translates the physical state of the power distribution line into readable information about its quality status, enabling users to understand the condition without direct visual access to the buried lines.
Solution Approach 2:
The patent substitutes visual inspection with electrical measurement to detect hidden conditions. By measuring electrical resistance, the system can detect aging and improper laying of power distribution lines that are not visible from the building appearance, providing critical information about fire risks without requiring physical exposure of the buried lines.
3Measurement precision
If users want to detect the quality and status of the indoor power distribution line, then they can identify aging or improper laying, but existing detection methods are insufficient or non-existent
Solution Approach 1:
The patent extracts the detection function from the power distribution line itself by introducing a separate, standalone detecting module. This module can be connected to the power distribution line through simple connections and performs measurement functions independently, separating the detection capability from the power transmission function and simplifying the overall system architecture.
Solution Approach 2:
The patent changes the measurement parameter from visual inspection to electrical resistance measurement. By measuring resistance values and comparing them against reference values, the system provides precise quantitative information about power distribution line quality, transforming qualitative visual assessment into quantitative electrical measurement for more accurate detection.
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
Enables users to accurately assess the quality and status of indoor power distribution lines, preventing potential fires by identifying aging or improper laying, and ensuring safe and proper installation.
Implementation Method 1
The detecting module determines the quality of the indoor power distribution line based on a measurement resistance thereof which is obtained according to the first voltage value, the first current value and the second voltage value
Data Source
AI summary
An apparatus for detecting quality of an indoor power distribution line including a power input module, a switch circuit, a load circuit and a detecting module is provided. The power input module receives an AC power through an indoor power distribution line. The switch circuit is controlled by the detecting module to transmit the AC power to the load circuit. When the switch circuit is on, the detecting module detects a voltage and a current of the load circuit to respectively serve as a first voltage value and a first current value. When the switch circuit is off, the detecting module detects a voltage of the AC power to serve as a second voltage value. The detecting module determines the quality of the indoor power distribution line based on a measurement resistance thereof obtained according to the first voltage value, the first current value and the second voltage value.