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Screen projection method, device and system

A device and screen projection technology, applied in transmission systems, digital output to display devices, program control design, etc., can solve problems such as long response time, save time, enhance experience, and shorten response time.

Pending Publication Date: 2021-03-26
深圳乐播科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of long response time caused by releasing cached screencasting resources, destroying cached screencasting pages, acquiring new resources, and rebuilding new pages when receiving another screencasting event request in the existing screencasting technology, the present invention provides Screen projection method, device and system based on page reuse and short response time

Method used

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  • Screen projection method, device and system
  • Screen projection method, device and system
  • Screen projection method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 As shown, it shows the network architecture of the screen projection system, which includes the front-end device 1 to be screen-cast and the terminal device 2 to be screen-cast. The front-end device 1 acts as the sender of the screen projection request, and the screen projection device acts as the receiver and executor of the screen projection request.

[0049] Specifically, a screen projection method disclosed in this embodiment is used in the terminal device 2 to be screened. Specifically, refer to figure 2 , the method includes the following steps:

[0050] Receive the screen projection request data from the front-end device 1, and judge whether to reuse the cached screen projection page according to the media type in the request data,

[0051] When the cached screen projection page can be reused, judge the status of the screen projection page. If the screen projection page is available, replace the configuration parameters of the screen projectio...

Embodiment 2

[0054] Based on the principles of the above-mentioned embodiments, this embodiment discloses a specific implementation mode. The specific method is also used in the projected terminal device 2. The projected terminal device 2 can be a computer, a tablet, a large-screen display, or a vehicle-mounted display terminal. , Open-air advertising display terminals and other devices with relatively large screens.

[0055] The screen projection process of its terminal equipment is the start of the screen projection page, the screen projection display, and the screen projection page switching in sequence. Refer to image 3 .

[0056] The front-end device and the terminal device realize the signal connection. When the front-end device sends a screen projection request to the terminal device for the first time, the specific operation of the terminal device is as follows:

[0057] The terminal device receives the initial screen projection request signal, and judges whether it currently has...

Embodiment 3

[0064] A screen projection device, that is, the terminal device in Embodiments 1 and 2, which can be used in a system with the front-end device, such as Figure 4 As shown, it includes a data acquisition module, a parameter configuration module, a storage module, a screen projection page matching module, a page status judgment module, a parameter update module, and a playback module. The data acquisition module obtains the screen projection request information of the front-end equipment through the network, which can be a signal receiving module such as a wifi module, a Bluetooth module, and a LoRa module; the parameter configuration module configures the screen projection parameters according to the screen projection request data, and it can receive the projection screen for the first time Action when requesting data, or when receiving screen projection request data later; the storage module caches screen projection page information, and the storage module generally uses cache...

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Abstract

The invention relates to the technical field of screen projection, and discloses a screen projection method, device and system. The method comprises the steps: when screen projection request data arereceived, judging whether a cached screen projection page is reused or not according to the media type in the request data; and under the condition that the cached screen projection page can be reused, judging the state of the screen projection page, and if the screen projection page is in an available state, replacing configuration parameters of the screen projection page with corresponding change parameters in the screen projection request data. According to the method, partial configuration parameter updating is carried out on the screen projection data on the basis of the reutilization principle, complete updating is not needed during page display, the tedious processes of releasing cache screen projection resources, destroying cache screen projection pages, obtaining new resources, reconstructing new pages and the like during screen projection again are avoided, system occupation is reduced, the time is saved, the response time of the projected screen terminal equipment is shortened, and the user experience is enhanced.

Description

technical field [0001] The invention belongs to the technical field of device projection, and more specifically relates to a screen projection method, device and system based on page reuse and short response time. Background technique [0002] As the majority of users have higher and higher requirements for large-screen presentations, projection screen presentations, business exhibition presentations, and mobile presentations, many mainstream LCD large-screen manufacturers, touch all-in-one machine manufacturers, and projection businesses have begun to carry on their products. Wireless screen projection function, in order to realize multi-screen interaction between large LCD screens, touch all-in-one machines, projectors of various brands and PCs, IPADs, tablet computers, smart phones and other devices, to achieve the purpose of wireless sharing and collaboration. Wireless projection technology is a technology that projects the screen of the front-end device that needs to be...

Claims

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Application Information

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IPC IPC(8): G06F3/14G06F9/4401H04L29/08H04N9/31
CPCG06F3/1454G06F9/4411H04N9/31H04L67/568
Inventor 刘思倩陈锡华
Owner 深圳乐播科技有限公司