Household Distribution Box Power Line Communication Control
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Solution Overview
Problem
Existing systems for power management and blackout prevention in regions like Gangnam and Yeouido are inefficient due to complex wiring and high communication costs, making it difficult to collectively interrupt power supply to multiple devices and causing significant economic losses from standby power wastage.
Innovation Solution
A household distribution box and forcible power interruption system utilizing power line communication to control a separate circuit breaker for regular and forcible power interruptions, reducing the need for additional communication devices and enabling efficient management of overall power supply by branching service lines into main and sub-lines, with a controller operating circuit breakers to interrupt power through power line communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple power consuming products are connected to one multi tap, then the wiring structure is simplified, but the aesthetics are spoiled and the efficiency of collectively interrupting current supply is lowered
Solution Approach 1:
The patent divides the power distribution system into multiple circuit breakers (first circuit breaker for regular power, second circuit breaker for forcible interruption) and organizes them into separate groups through branching service lines into main lines and sub-lines. This segmentation allows independent control of different device groups, enabling efficient collective interruption of specific device groups without affecting others, while maintaining aesthetic appearance through organized wiring structures.
2Extent of automation
If an additional communication system is applied for smart grid, then power control capability is improved, but communication security problems arise and receiving device cost and consumer communication fee increase
Solution Approach 1:
The patent utilizes the existing power line infrastructure to perform both power transmission and communication functions. The controller communicates with circuit breakers through the power lines already present in the distribution box, eliminating the need for separate communication systems. This multi-functional use of existing infrastructure reduces additional device costs and communication fees while maintaining automated power control capability.
3Reliability
If a circuit breaker for regular power source and circuit breaker for forcible interruption are separated, then the ability to prevent blackout damage is improved, but the device complexity increases
Solution Approach 1:
The patent implements separate circuit breakers for regular power supply and forcible interruption functions, with the first circuit breaker controlling normal power flow and the second circuit breaker enabling emergency power cutoff. This segmentation enhances reliability by allowing selective interruption - in normal operations both breakers remain closed, but in emergency situations the second breaker can be activated to forcibly interrupt power to prevent blackout damage, while the first breaker continues to provide regular power control.
Solution Approach 2:
The controller acts as an intermediary that coordinates between the two circuit breakers and external communication systems. It receives commands through power line communication, determines whether regular or forcible interruption is needed, and activates the appropriate circuit breaker accordingly. This intermediary control mechanism manages the complexity of having two circuit breakers by providing intelligent coordination, thereby enhancing reliability without proportionally increasing operational complexity.
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
This solution allows for efficient power management and reduction of communication fees by using power line communication, effectively preventing blackouts and minimizing standby power wastage, thereby protecting industrial and medical facilities and homes from power outages.
Implementation Method 1
a controller connected to the first circuit breaker and configured to control an operation of the first circuit breaker through power line communication
Data Source
AI summary
A household distribution box comprises a distribution box case; two service lines introduced from a transformer into the distribution box case of a consumer; three main lines installed in the distribution box case and provided with two lines and a second service line; two sub-lines installed in the distribution box case and formed by branching the second service line among the main lines into two lines; a first circuit breaker installed in the distribution box case; a second circuit breaker installed in the distribution box case; and a controller connected to the first circuit breaker.