Web-Based Universal Remote Control for Smart Projectors
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Solution Overview
Problem
Existing remote control systems for smart projectors require development of individual apps and protocols for different brands and models, leading to high technical requirements, costs, and complexity for users, as well as storage occupancy on smart devices.
Innovation Solution
A control system that allows a client apparatus to connect to a display apparatus via a network, using HTTP and WebSocket technologies to access an operation interface and transmit control commands without the need for additional apps, enabling direct and quick control of the display apparatus through a browser.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If individual remote control APPs and communication protocols are developed for different brands or models of projectors, then the control functionality is achieved, but the development cost and technical requirements increase
Solution Approach 1:
The patent implements a universal remote control solution where a single web-based interface can control multiple brands and models of projectors. The system uses a standardized communication protocol over HTTP/WebSocket that works across different projector types, eliminating the need for separate APPs for each brand or model.
Solution Approach 2:
The patent introduces a relay communication box as an intermediary device that bridges the smart phone and various projectors. This mediator handles protocol conversion and communication coordination, allowing the universal web interface to control different projector types without requiring custom development for each device.
2Adaptability or versatility
If individual remote control APPs are developed for different brands or models of projectors, then the control functionality is achieved, but the maintenance cost increases
Solution Approach 1:
The universal web-based control interface maintains a single codebase that can control multiple projector brands and models. Updates and maintenance are performed centrally on the web server, automatically benefiting all connected projectors without requiring separate maintenance cycles for different APPs.
Solution Approach 2:
The system uses standardized web protocols (HTTP, WebSocket) that are universally supported by browsers, copying the familiar web interaction model to remote control. This allows the control interface to be maintained as a standard web application rather than native APPs, significantly reducing maintenance complexity.
3Adaptability or versatility
If remote control APPs are installed on smart terminal devices, then the control functionality is achieved, but the storage capacity of the smart terminal device is occupied
Solution Approach 1:
The patent extracts the control functionality from native APP installations and moves it to a web-based interface. The control logic and interface are delivered through the browser, eliminating the need to store large APP files on the smart terminal device while maintaining full control functionality.
Solution Approach 2:
The system copies the control interface to the user's browser environment, allowing the same control functionality to be accessed from any device with a browser. This eliminates storage occupation on the smart terminal while providing universal access to control features.
4Adaptability or versatility
If multiple remote control APPs are installed for different projector brands, then the control functionality is achieved, but the user operation complexity increases
Solution Approach 1:
The patent provides a single universal web-based control interface that works with multiple projector brands and models. Users only need to access one web page to control any projector, eliminating the complexity of selecting and switching between multiple brand-specific APPs.
Solution Approach 2:
The relay communication box acts as an intermediary that automatically handles the connection between the user's browser and the specific projector. The system manages the complexity of device discovery and protocol selection, presenting a simple unified interface to the user while handling multiple projector types in the background.
Data Source
AI summary
A control system, a control method, and a display apparatus included in a control system are provided. The control system includes a client apparatus and a display apparatus controlled by the client apparatus. The display apparatus is connected to a network and generates and displays an access object. The client apparatus is connected to the network, has a browser, captures the access object, and is connected to the display apparatus through the network according to information of the access object. The display apparatus provides an operation interface to the client apparatus through the network to display the operation interface in the browser of the client apparatus. The operation interface generates a control command based on operation performed therein by the client apparatus. The display apparatus receives the control command generated by the operation interface through the network, and performs an action according to the control command.