Cloud Account Data Sharing via Policy-Based Target Device Selection

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Solution Overview

Problem

Existing data sharing processes between devices require manual device connection and are inefficient, lacking intelligence and providing a poor user experience.

Innovation Solution

Implementing a data sharing method and system that utilizes cloud accounts to automatically share data between devices within the same cloud account group, based on device status information and predefined policies, determining target devices for data transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual device connection is used for data sharing, then data can be shared between devices, but the process becomes complex and user experience deteriorates

Engineering Contradiction:
Improvedata sharing processVSAvoidconnection process
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent introduces a server as an intermediary component that manages device connections and data sharing. Instead of direct device-to-device connection, devices communicate through the server which handles authentication, connection establishment, and data routing. This mediator approach simplifies the user operation while managing the complexity centrally on the server side.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system implements automatic connection establishment and data sharing based on predefined sharing policies. Once policies are configured, devices automatically connect and share data without requiring manual intervention for each transfer. The system serves itself by autonomously managing connection lifecycle and data flow according to established rules.

Inventive Principle:
Principle #25Self-service

2Extent of automation

If automatic data sharing based on cloud accounts is implemented, then intelligence and automation improve, but system complexity increases

Engineering Contradiction:
Improvedata sharing processVSAvoidsystem architecture
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The cloud account system serves multiple functions: authentication, device identification, permission management, and policy configuration. By making the cloud account a universal component that handles all these tasks, the system reduces overall complexity despite adding automation. The multi-functional account acts as a centralized control point that simplifies the automation logic.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The server acts as an intermediary that manages the complexity of automatic data sharing. It handles cloud account verification, policy evaluation, and connection management, isolating the complexity from client devices. This allows high-level automation without requiring complex local implementation on each device.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If device status information is collected and processed, then intelligent target device determination is achieved, but information processing requirements increase

Engineering Contradiction:
Improvetarget device selectionVSAvoiddata processing
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent extracts the complex data processing and analysis tasks from client devices and relocates them to the server. Client devices only need to send status information and receive instructions, while the server performs the intensive work of analyzing status data, evaluating policies, and determining target devices. This extraction approach enables precise target selection without burdening client devices with heavy processing requirements.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP4224830B1Data sharing method, apparatus and system, and electronic device
Publication Date: 2025.12.10 HUAWEI TECH CO LTD
  • EP4224830B1 patent drawingFigure 1
  • EP4224830B1 patent drawingFigure 2
  • EP4224830B1 patent drawingFigure 3

AI summary

This application provides a data sharing method, apparatus, and system, and an electronic device, and relates to the field of data communications technologies. In the method, a cloud device may select a target device from a first device group through screening based on a data sharing policy and received status information of at least one device in the first device group. Then, the cloud device may indicate the target device to send data associated with the data sharing policy for a first cloud account to at least one device in a second device group. The first cloud account is used to log in to a device in the first device group, a second cloud account is used to log in to a device in the second device group, and the cloud device stores the data sharing policy for the first cloud account and an association relationship between the first cloud account and the second cloud account. In this way, data sharing between cloud accounts is implemented, so that different devices belonging to one cloud account can automatically share their respective data with a device belonging to another cloud account in a specific scenario. This simplifies a data sharing process.