Power Management Apparatus Complements Smart Meter Data
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Solution Overview
Problem
Current power management systems lack convenience in accurately managing and displaying power information, particularly in consumer facilities, as they rely solely on smart meters for aggregated power data, which can be incomplete and infrequent, leading to inefficiencies and potential inaccuracies in billing and power usage monitoring.
Innovation Solution
Incorporating a CT sensor to measure power supplied from the grid, allowing for both accumulated and instantaneous power values to be measured, and using a power management apparatus that communicates with a smart meter to complement and correct data, enabling more frequent and accurate power monitoring without overburdening the smart meter with frequent data requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a smart meter is used to transmit aggregated power values at fixed intervals, then the system structure remains simple, but the measurement precision and reliability of power data are insufficient
Solution Approach 1:
The patent combines the smart meter and CT sensor into a coordinated measurement system where both devices work together to provide complementary power data. The smart meter provides aggregated values at fixed intervals while the CT sensor provides instantaneous values, creating a more comprehensive and accurate power measurement system without requiring a completely new device.
Solution Approach 2:
The power management apparatus acts as an intermediary that receives data from both the smart meter and CT sensor, processes the information, and generates corrected power usage information. This mediator integrates data from multiple sources to improve measurement precision while maintaining manageable system complexity through centralized processing.
2Productivity
If frequent data requests are sent to the smart meter, then the power monitoring frequency increases, but the smart meter becomes overloaded and communication efficiency decreases
Solution Approach 1:
The patent segments the power measurement function between two devices: the smart meter handles aggregated power values at its standard communication intervals, while the CT sensor independently measures instantaneous power values. This segmentation allows high-frequency monitoring without overloading the smart meter, as the CT sensor operates autonomously and transmits data only when needed.
Solution Approach 2:
The CT sensor performs self-service by autonomously measuring instantaneous power values and providing this data to the power management apparatus without requiring frequent requests from the smart meter. This self-service capability enables continuous monitoring while reducing communication overhead and smart meter workload.
3Reliability
If only aggregated power values are used for billing, then the system operation is simple, but the reliability and accuracy of billing information are insufficient
Solution Approach 1:
The power management apparatus uses feedback from both the smart meter's aggregated values and the CT sensor's instantaneous values to correct and verify power usage information. By comparing and cross-validating data from both sources, the system improves billing reliability through a feedback mechanism that identifies and corrects discrepancies without requiring complex manual verification processes.
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 enhances the convenience of power management by providing real-time and accurate power monitoring, improving billing accuracy and user convenience by allowing for more detailed and timely power usage insights, even without frequent data transmission from the smart meter.
Implementation Method 1
a CT sensor that measures power supplied from a power grid to the consumer's facility
Data Source
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AI summary
This power management device: receives, at predetermined intervals for each certain time period, an integrated value that is obtained by totaling power flowing between a power system and a consumer facility within the certain time period from a smart meter that measures the amount of the power flowing between the power system and the consumer facility; receives, at shorter intervals than the predetermined intervals, the measured value of the power flowing in the consumer facility from a power sensor provided separately from the smart meter; and calculates complementary information that complements the integrated value on the basis of the measured value.