Power Consumption Display Apparatus with Evaluation Index
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Solution Overview
Problem
Existing methods for measuring and displaying power consumption fail to effectively determine whether electricity is being wasted, as they do not account for varying business needs and device usage patterns, making it difficult to assess energy-saving efforts regardless of overall power consumption levels.
Innovation Solution
A power consumption display apparatus and method that estimates clock-in and clock-out times based on daily power consumption data, calculates average power usage during working hours, estimates electric power savings, and displays a power-saving effort evaluation index using two parameters: the proportion of daily estimated savings to total savings and the proportion of working-hour consumption to average consumption, with threshold comparisons for evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If power consumption is simply displayed in a graph or table, then power consumption data can be visualized, but it is impossible to judge whether electricity is wastefully consumed
Solution Approach 1:
The system introduces feedback by calculating a power-saving effort evaluation index that compares actual power consumption during working hours against estimated maximum consumption. This feedback mechanism provides users with actionable information about their energy-saving performance, transforming raw consumption data into meaningful evaluation results that indicate whether electricity is being wastefully consumed.
Solution Approach 2:
The patent introduces an intermediary evaluation index that mediates between raw power consumption data and the judgment of wasteful consumption. The power-saving effort evaluation index serves as this intermediary, processing consumption data through calculations involving clock-in/out times, working hour consumption, and maximum consumption estimates to produce an evaluative metric that directly addresses whether consumption is wasteful.
2Measurement precision
If power consumption is measured for each individual, then individual consumption patterns can be analyzed, but it remains difficult to assess energy-saving efforts without context of business needs and usage patterns
Solution Approach 1:
The system performs preliminary actions by automatically estimating clock-in and clock-out times based on power consumption data patterns, and pre-calculating working hour power consumption and maximum consumption values. These preliminary calculations are prepared in advance to provide the contextual framework needed for assessing energy-saving efforts, eliminating the need for manual input of business schedules and usage patterns.
Solution Approach 2:
The system implements self-service by automatically deriving working hour parameters and consumption benchmarks from the power consumption data itself. The system estimates clock-in/out times and calculates maximum consumption values without requiring external input about business content or device usage patterns, making the evaluation adaptable to different individuals and situations automatically.
3Ease of operation
If maximum power consumption is used as the evaluation criterion, then a clear standard can be set, but it does not reflect actual working hour consumption patterns
Solution Approach 1:
The patent segments the power consumption evaluation into multiple components: working hour power consumption, maximum power consumption during working hours, and estimated power-saving effort. This segmentation allows the system to use maximum consumption as a reference standard while simultaneously considering actual working hour consumption patterns, providing both ease of operation and measurement precision through a multi-faceted evaluation approach.
Solution Approach 2:
The system employs parameter changes by using multiple power consumption parameters (working hour consumption, maximum consumption, estimated savings) rather than relying on a single criterion. This allows flexible adjustment of evaluation standards while maintaining precision, as the system can compare actual consumption against maximum consumption and calculate the difference as power-saving effort.
Data Source
AI summary
A display is estimating every day working time of a worker involved in a load based on power consumption data in which electricity supplied to the load is measured in a certain period; calculating power consumption of the load during working time a day to calculate an average of the power consumption in a predetermined period; and calculating estimated daily power saving for every day based on a difference between maximum power during working time a day and power for each of the time, in which an index in which a proportion of the daily estimated power saving to a sum of the estimated electric saving and the power consumption serves as a parameter while a proportion of the power consumption a day to an average of the power consumption in a predetermined period serves as another parameter is displayed with the measured power consumption for each of the time.