Personal Cloud Device Secure Content Sharing
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Solution Overview
Problem
Existing cloud services face privacy issues due to shared cloud servers, making it difficult to securely share contents between multiple electronic devices within a home environment.
Innovation Solution
A personal cloud system and method that allows secure content sharing between electronic devices by using a personal cloud device installed in the home, with user authentication and conditional upload/download processes based on network and battery status, ensuring only certified users access secure content areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a public cloud service with a fixed infrastructure server is used, then content accessibility from anywhere is improved, but user privacy and security are worsened due to shared servers
Solution Approach 1:
The patent segments the cloud service into two parts: a public cloud server for general accessibility and a personal cloud device for secure private storage. The personal cloud device is divided into a secure area (accessible only by authenticated users) and a normal area (accessible by authorized devices), thereby separating public accessibility functions from private security functions.
Solution Approach 2:
The personal cloud device acts as an intermediary between the public cloud server and the user's electronic devices. It receives content from the public cloud server, stores it securely in the secure area, and manages authentication and authorization, thereby mediating between public accessibility and private security requirements.
2Reliability
If a personal cloud device with secure area is implemented, then user privacy and security are improved, but system complexity is worsened due to authentication and area management
Solution Approach 1:
The system performs preliminary authentication of users and preliminary authorization of devices before allowing access to the secure area or normal area. The personal cloud device pre-establishes trust relationships by authenticating users and authorizing devices in advance, which simplifies subsequent access control operations.
Solution Approach 2:
The patent implements dynamic authentication and authorization mechanisms where the personal cloud device can dynamically determine whether to allow access based on user authentication results and device authorization status. This dynamic approach allows the system to adapt access control in real-time without requiring complex static configurations.
3Productivity
If automatic content upload is implemented without conditions, then content synchronization speed is improved, but energy consumption is worsened due to continuous transmission
Solution Approach 1:
The patent implements dynamic upload control where the upload condition is determined based on real-time battery status. When battery status is good (above threshold), automatic upload is enabled for fast synchronization; when battery status is poor (below threshold), upload is suspended to conserve energy. This dynamic adjustment optimizes the balance between synchronization speed and energy consumption.
Solution Approach 2:
The system changes the operational parameter of upload behavior based on battery status parameter. By monitoring battery status and adjusting the upload condition accordingly, the system adapts its content synchronization behavior to current energy availability, thereby optimizing the trade-off between synchronization productivity and energy consumption.
Data Source
AI summary
A method of sharing content by using a personal cloud device and an electronic device and a personal cloud system using the method are provided. The method includes connecting to a personal cloud device configured to share the content with another electronic device, if a new first content is added to a set first folder, determining an upload condition of the electronic device, and if the upload condition satisfies a set condition, transmitting the first content to the personal cloud device. Accordingly, a user is able to share contents between a plurality of electronic devices by using a personal cloud device in real time.