Server-Mediated Screen Projection Control Across Multiple Terminals
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Solution Overview
Problem
Existing screen projection technologies require separate installation and operation of sending end programs on multiple terminals, leading to complex and cumbersome control processes, as each terminal can only perform screen projection control on its own contents.
Innovation Solution
A method and system that allow a first terminal to acquire a device list of other terminals sharing the same server account, select target terminals, and send screen projection control instructions via the server to control multiple terminals from a single main terminal, simplifying the process of screen projection across multiple devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate sending end programs are installed on multiple terminals for screen projection, then each terminal can independently control its own screen projection, but the operational complexity increases significantly when managing multiple terminals
Solution Approach 1:
The patent introduces a server as an intermediary that receives control instructions from a first terminal and forwards them to target second terminals. This mediator enables centralized control of multiple terminals through a single interface, eliminating the need to operate separate programs on each terminal while maintaining full control capabilities over all connected devices.
Solution Approach 2:
The first terminal is designed with universal control capability that allows it to control not only its own screen projection but also the screen projection of multiple other second terminals. This multi-functional design consolidates what would otherwise require multiple dedicated control programs into a single versatile terminal.
2Device complexity
If a terminal can only control its own screen projection contents, then the control system remains simple, but the system cannot meet the needs of users who need to manage multiple terminals
Solution Approach 1:
The server acts as a mediator that manages the complexity of multi-terminal control. By offloading the coordination logic to the server, the first terminal can provide versatile control over multiple second terminals without the control system becoming unnecessarily complex at the terminal level.
Solution Approach 2:
The patent shifts the control dimension from individual terminal autonomy to networked terminal coordination. Instead of each terminal operating independently in one dimension, the system adds a network dimension where a first terminal can control multiple second terminals through server-mediated communication, expanding the control landscape without overwhelming complexity.
Data Source
AI summary
The present disclosure discloses a method, device, and system for controlling screen projection. The method comprises a first terminal acquiring a device list, wherein the device list includes identification information of a second terminal, and the second terminal is a terminal that accesses a same server as the first terminal; the first terminal receiving a selection instruction, wherein the selection instruction is used to select target identification information from the device list; the first terminal sending a screen projection control instruction to the server, wherein the screen projection control instruction includes target identification information, and the screen projection control instruction is forwarded to a target second terminal corresponding to the target identification information via the server, so as to control the target second terminal to project the screen to a first screen projection receiving end.