Portable Power Output Polling for Idle Load Detection

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Solution Overview

Problem

Conventional portable energy systems are capacity-constrained and tend to prematurely deplete their power supply due to unnecessary power delivery when no loads are attached, leading to downtime.

Innovation Solution

A portable energy system with a controller that performs periodic polling to determine the presence of a load, energizing the system only when a load is attached and deenergizing it when no load is present, thereby conserving energy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the portable energy system continuously delivers power to internal circuits and external outputs, then the system maintains readiness to supply power, but the power supply is prematurely depleted when no loads are attached

Engineering Contradiction:
Improvesystem readinessVSAvoidpower depletion
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The system implements periodic polling at predetermined intervals to detect load presence, transitioning between energized and deenergized states based on detection results. This periodic operation allows the system to maintain reliability when needed while conserving energy during idle periods, directly resolving the contradiction between continuous readiness and power depletion.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system automatically detects load presence through polling and self-regulates its power delivery state without external intervention. The controller autonomously transitions the system between energized and deenergized states based on detected load conditions, enabling the system to serve itself by eliminating unnecessary power delivery while maintaining readiness when loads are present.

Inventive Principle:
Principle #25Self-service

2Power

If the portable energy system maintains energized state to supply power, then power delivery capability is ensured, but energy is wasted when no loads are connected

Engineering Contradiction:
Improvepower delivery capabilityVSAvoidenergy consumption
Core Design Contradiction:
PowerVSUse of energy by moving object

Solution Approach 1:

The system uses periodic polling to determine when power delivery is actually needed, switching between energized and deenergized states accordingly. This ensures power delivery capability is maintained when loads are present while eliminating energy waste during idle periods, resolving the contradiction between power capability and energy consumption.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system dynamically adjusts its operational state based on real-time load detection. The controller transitions the system between energized and deenergized states according to detected load presence, making the power delivery capability adaptive rather than static, thereby eliminating energy waste while maintaining readiness when needed.

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If the system polls for load presence continuously, then load detection accuracy is improved, but additional power consumption occurs

Engineering Contradiction:
Improveload detection accuracyVSAvoidpolling power consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The system performs load presence detection at predetermined periodic intervals rather than continuously, achieving sufficient detection accuracy while significantly reducing the power consumption associated with polling operations. This periodic approach resolves the contradiction between detection precision and polling energy cost.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS20240250545A1Portable energy system
Publication Date: 2024.07.25 ENPHASE ENERGY INC
  • US20240250545A1 patent drawing
  • US20240250545A1 patent drawing
  • US20240250545A1 patent drawing

AI summary

A portable energy system is provided and includes a controller configured to control periodic polling to determine when a load is attached or actively connected to the portable energy system, such that when the load is attached to the portable energy system, the controller energizes the portable energy system for supplying power to the load, and when the load is not attached or not actively connected to the portable energy system, the controller deenergizes the portable energy system output for not supplying power to the load.