Mobile Internet is profoundly changing our lives. The rapid spread of Android continues to expand. The multi-screen interactive and multi-screen services between computers, mobile phones, tablets, and TVs have become the focus of industry attention. Make the platform's market value grow geometrically. In addition to computers, mobile phones, and tablets, why should smart TVs cross the screen? Now that the so-called smart TV is not smart, it is almost impossible to rely on the TV to independently complete the content opening and interactive revolution. Integrating the TV screen into the mobile Internet to realize the multi-screen function is the most fundamental solution.
At the press conference on November 18, China International released its latest version of ZTE Internet TV ZERO. It elaborated on the details of product operations, content development, and win-win plans for the industry chain. It is worth mentioning that Huada Internet TV made a brand-new attempt at cross-screen function this time, demonstrating the multi-screen function of smart TVs. The number of TV assistants equipped with dual remote control, take-away, live-cast screens and other functions have made a grand debut. , Bringing users a fun and practical multi-screen service experience. The mobile phone is a remote control, a new remote control experience across the screen.
The concept of cross-screen has been proposed a few years ago, and now the multi-screen technology has been gradually reflected in the actual product, TV cross-screen technology in the end is how? Let's read in detail below:
The multi-screen communication protocol mainly includes five functions: device search, device connection, data communication, remote start, and direct mapping of control events. 1. Device search: The device search function is a function that a terminal device (such as a mobile phone, a remote controller, etc.) uses to search for a service device (such as a TV) that exists in the network.
2. Device connection: The device connection function is a function used by a terminal device (such as a mobile phone, a remote controller, etc.) to connect to the searched network device.
3. Data transmission: Data transmission is a data channel in which terminal devices (such as mobile phones, remote controllers, etc.) and service devices (such as TVs) communicate with each other.
4. Remote start: The terminal device can query the application content list of the service device (TV) using the communication service, and can remotely start the application content (support the same application to register multiple application content, corresponding to different intents). At the same time, when the application is started on the service device, the terminal device will receive a notification that the startup is complete, and the terminal device begins to send control instructions. When the server application exits to the background or closes, the terminal device can also get a notification to perform state transition.
5, direct control of event mapping: keyboard events, touch events and sensor events directly passed to the android application activity. When you want to save the transmission using the data transmission channel, you need the application to convert the event.
The principle and architecture of TV multi-screen technology is what it looks like. Recently it has come into contact with a company that specializes in multi-screen technology. The company called short-listing for short, and their product fast-TV has fully realized the multi-screen control of TV and mobile phones. The Huada Display is no different. The company has already taken the lead in the multi-screen industry. After in-depth communication with the company's technical staff, they obtained their multi-screen technology principles and architecture. Details are as follows:
The main technical principles: 1. Multi-screen browser: TV and mobile phones are deeply customized and optimized based on the same Chromium browser to ensure a seamless cross-screen experience;
2. Multi-screen automatic discovery: Based on multiple protocols, mDXA, multicast, IP Scan, WiFi ADB, and more methods of independent innovation, to improve the user experience of automatic discovery within the home environment;
3. Based on socket connection establishment, HTTP and websocket connections are provided for home-based interactive entertainment scenarios where multiple mobile phones for application scenarios connect to the same TV.
4, based on the automatic discovery and connection establishment, the use of HTML5 technology, the development of mobile-end and TV-side interface; for different TV applications to provide "thousands of thousands of people" mobile phone-side personalized interactive interface, the underlying high-performance The browser guarantees the performance of the HTML5 manipulation interface. For example, phaser-based JS game engine for multi-screen game interaction;
5, the industry's first use of WebGL TV rendering framework to achieve native Android animation experience;
The smart TV field is a fast-growing new market, the continuous maturity of multiple cross-screen technologies and the popularity of WiFi systems in the home, educating users on their usage habits; product experience has been greatly improved, there is no cross-screen and no interaction, smart TV The multi-screen era has come!
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