Electronic Device Charging Carbon Emission Calculation With Adapter Efficiency

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing methods for calculating carbon emissions from electronic devices during charging processes are inaccurate due to neglecting battery losses, leading to errors in carbon emission calculations.

Innovation Solution

A method that involves detecting the current and voltage of the adapter, determining conversion efficiency, and using a preset conversion coefficient to calculate carbon emissions, while accounting for heat generation and temperature changes, along with historical power consumption data to enhance accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If battery capacity and battery voltage are detected to calculate power consumption, then the calculation method is simple, but the calculation accuracy is low due to neglecting battery losses

Engineering Contradiction:
Improvesimplicity of calculation methodVSAvoidaccuracy of carbon emission calculation
Core Design Contradiction:
Ease of manufactureVSMeasurement precision

Solution Approach 1:

The patent segments the power consumption calculation into multiple components: adapter power consumption (based on current and voltage detection), battery loss (based on temperature and charging rate), and terminal power consumption. This segmentation allows each component to be calculated with appropriate methods, improving overall accuracy while maintaining reasonable complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces temperature as an additional parameter to calculate battery loss, and uses conversion efficiency coefficients that vary with temperature and charging rate. By changing from a simple voltage-capacity model to a multi-parameter model including temperature and adaptive efficiency coefficients, the calculation accuracy is significantly improved.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If adapter current and voltage are detected to calculate power consumption, then the calculation is more accurate, but the method complexity increases

Engineering Contradiction:
Improveaccuracy of power consumption calculationVSAvoidcomplexity of detection and calculation system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent leverages existing sensors in the electronic device (temperature sensor, charging management circuits) to gather necessary data. The system uses its own internal resources to perform the calculations without requiring external complex measurement equipment, thereby improving accuracy while limiting complexity growth.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent pre-establishes conversion efficiency coefficient tables based on temperature ranges and charging rates. These pre-calculated coefficients are stored and directly applied during operation, avoiding complex real-time calculations and reducing the computational burden on the system.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If conversion efficiency and temperature factors are considered to calculate carbon emissions, then the carbon emission calculation accuracy is improved, but the calculation process becomes more complex

Engineering Contradiction:
Improveaccuracy of carbon emission calculationVSAvoidcomplexity of calculation process
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent pre-establishes conversion efficiency coefficient tables based on temperature ranges and charging rates. These pre-calculated coefficients are stored in the device and directly applied during operation, avoiding complex real-time calculations and reducing computational complexity while maintaining high accuracy.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses temperature as a key parameter to determine the appropriate conversion efficiency coefficient. By changing from a fixed efficiency model to a temperature-dependent dynamic model, the calculation accurately reflects real-world conditions without requiring overly complex algorithms.

Inventive Principle:
Principle #35Parameter changes

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

Improves the accuracy of carbon emission calculations by considering adapter efficiency and battery losses, providing real-time feedback on carbon emissions and power consumption.

Implementation Method 1

an adapter (20) connected to the electronic device (10) and the power supply device (30), wherein the power supply device (30) is used for providing power to the adapter (20), and the adapter (20) is used for providing power to the electronic device (10)

Methodology Applied
Scientific EffectElectrical energy conversion:

Implementation Method 2

a battery of the electronic device (10)

Methodology Applied
Scientific EffectElectrical energy storage: Battery (electricity)

Implementation Method 3

a loss of a battery of the electronic device, resulting in errors in the calculated carbon emitted by the electronic device

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS20250314681A1Method for calculating carbon emitted by an electronic device, electronic device and storage medium
Publication Date: 2025.10.09 DYNABOOK TECHNOLOGY (HANGZHOU) INC
  • US20250314681A1 patent drawing
  • US20250314681A1 patent drawing
  • US20250314681A1 patent drawing

AI summary

A method for calculating carbon emitted by an electronic device is provided. The method includes obtaining a type of an adapter that is connected to the electronic device in response that the electronic device is in a charging state; detecting a current and a voltage of the adapter in response that the type of the adapter is a first type; determining a conversion efficiency corresponding to the adapter with the adapter with the first type based on a plurality of parameters of the adapter with the first type; and calculating the carbon emitted by the electronic device according to the current, the voltage, the conversion efficiency and a preset conversion coefficient. The method can improve the accuracy of calculating the carbon emitted by the electronic device.