Coded Power Transmission for Source-Traceable Contactless Supply

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Solution Overview

Problem

Current power supply systems lack real-time association between power consumption and generation data, leading to complex system configurations and limited consumer choice in selecting power transmission sources, and existing contactless power supply systems face challenges in reliably and safely performing transactions between power supply and receiving sides.

Innovation Solution

A power supply device equipped with a baseband unit, modulation processing unit, and transmission unit that encodes and modulates power signals with source-specifying codes, allowing for secure and reliable transmission of electrical power and data, enabling consumers to freely choose power sources and ensuring secure transactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If electrical power from different transmission sources is pooled together in the electrical power network, then power supply stability is improved, but the ability to specify transmission sources is lost

Engineering Contradiction:
Improvepower supply stabilityVSAvoidtransmission source identification
Core Design Contradiction:
Stability of the object's compositionVSLoss of information

Solution Approach 1:

The patent introduces a token as an intermediary element that carries transmission source information through the pooled power network. The token acts as a mediator between the transmission source and the consumer, enabling source identification without disrupting the pooled power structure. This resolves the contradiction by maintaining power pooling for stability while using tokens to preserve transmission source information.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the state of power by associating it with digital tokens that encode transmission source parameters. By transforming physical power into a form that carries informational parameters (through tokenization), the system maintains both the pooled power structure for stability and the ability to track transmission sources through token metadata.

Inventive Principle:
Principle #35Parameter changes

2Loss of information

If a blockchain ledger is used to record transaction history, then transmission source traceability is improved, but system complexity increases

Engineering Contradiction:
Improvetransmission source traceabilityVSAvoidsystem complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent extracts the essential function of blockchain (transaction recording and verification) and implements it through simplified token-based mechanisms. Instead of requiring full blockchain infrastructure, the system uses tokens with embedded transaction information that can be verified without complex distributed ledger technology, thus maintaining traceability while reducing system complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent creates simplified copies of blockchain functionality through token metadata that contains essential transaction information. Rather than implementing the full blockchain protocol, the system uses token copies that encapsulate transmission source data, achieving traceability with reduced computational and infrastructural complexity.

Inventive Principle:
Principle #26Copying

3Ease of operation

If contactless power supply is implemented, then convenience is improved, but reliability of transactions between supply and receiving sides deteriorates

Engineering Contradiction:
ImproveconvenienceVSAvoidtransaction reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent implements feedback mechanisms where tokens are exchanged between power supply and receiving devices to confirm successful transactions. The receiving device sends feedback tokens to the supply device, and the system verifies transaction completion through this bidirectional communication, thereby ensuring reliability while maintaining contactless convenience.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent performs preliminary authentication and token issuance before power transmission begins. By establishing the transaction framework and verifying device identities in advance through token exchange, the system ensures transaction reliability is set up before the actual contactless power transfer occurs, preventing unauthorized or erroneous transactions.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11791668B2Power supply device and power supply system
Publication Date: 2023.10.17 MINNA DENRYOKU INC
  • US11791668B2 patent drawing
  • US11791668B2 patent drawing
  • US11791668B2 patent drawing

AI summary

It is aimed to provide a power supply device and a power supply system which enable consumers to freely choose electrical power and specify transmission sources when receiving electrical power, and enable parties involved in transactions (power supply side and power receiving side) to reliably and safely perform transmission between them. There are provided a power supply device and a power supply system. The power supply device includes a baseband unit that generates a power signal, a modulation processing unit that modulates the power signal generated by the baseband unit to impart a code thereto for specifying a transmission source of the power signal and generates a modulated signal that can be demodulated by a power receiving device, and a transmission unit that transmits the modulated signal generated by the modulation processing unit.