Automatic WiFi P2P Screen Projection via Broadcast Signals

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Solution Overview

Problem

Existing screen projection technologies require manual installation of application programs on both devices and user-operated WiFi P2P connections, leading to cumbersome operations and low connection efficiency.

Innovation Solution

Establishing a WiFi P2P connection automatically through broadcast signals of a predetermined type, such as Bluetooth or NFC, eliminating the need for specific application programs and manual user operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual application installation and user-operated WiFi P2P connection are used, then connection reliability is improved, but operation complexity increases and connection efficiency decreases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidoperation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system performs preliminary actions by pre-installing the projection application on the screen device and pre-configuring WiFi P2P service. The first electronic device automatically discovers and connects to the second device without requiring manual application installation or user-operated connection steps, thereby reducing operation complexity while maintaining connection reliability through pre-established service configurations.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If manual application installation and user-operated WiFi P2P connection are used, then connection stability is improved, but connection efficiency decreases

Engineering Contradiction:
Improveconnection stabilityVSAvoidconnection efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The projection application and WiFi P2P service are pre-configured on the screen device before connection is needed. When projection is initiated, the first electronic device automatically discovers the second device through broadcast signals and establishes the connection immediately, eliminating manual installation and configuration steps. This preliminary setup maintains connection stability while dramatically improving connection efficiency by reducing the time required to establish projection.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If automatic connection through broadcast signals is used, then operation simplicity is improved, but device compatibility requirements increase

Engineering Contradiction:
Improveoperation simplicityVSAvoiddevice compatibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The solution employs WiFi P2P technology which is a universal communication protocol supported by most modern electronic devices. The projection application is installed on the screen device and can receive connection requests from various types of first electronic devices (smartphones, tablets, computers) that support WiFi P2P. This multi-functional approach enables automatic connection through broadcast signals while maintaining broad device compatibility across different device types and manufacturers.

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

Data Source

PatentEP3046309B1Method, device and system for projection on screen
Publication Date: 2019.03.06 XIAOMI INC
  • EP3046309B1 patent drawingFigure 1~2
  • EP3046309B1 patent drawingFigure 3~4A
  • EP3046309B1 patent drawingFigure 4B~4F

AI summary

The present disclosure relates to a method, a device and a system for projection on a screen. The method for projection on a screen includes: receiving (201, 402) signals of a predetermined type, and establishing a connection of a predetermined type with a second electronic device which sends the signals of the predetermined type; according to the connection of a predetermined type, notifying (202) the second electronic device to start a WiFi P2P connection service; and after the first electronic device starting the WiFi P2P connection service, establishing (203, 405) a WiFi P2P connection with the second electronic device which has started the WiFi P2P connection service, and performing projection on a screen of the second electronic device. A WiFi P2P connection may be automatically established, the connection efficiency when performing projection on a screen may be improved and user's operations may be reduced.