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How to Control LED Display by Mobile Devices?

2018-10-13 www.myddisplay.com

In response to the development of the times, mobile phones and iPads now have more and more functions of computers, that is, online operations can be realized on mobile phones and iPads. Since the mobile phone and iPad can realize most of the functions of the computer, then using the mobile phone and iPad to control the LED display is not a problem, then how do they control the LED display, what is the principle, let Meiyad come to you for analysis.


Meiyad Large LED Display


In fact, one of the most important reasons for mobile phones and iPads which controlling the LED display is to connect these devices. Is the mobile phone and iPad required to be connected to the network like a computer? The answer is no need, just use WIFI to connect.


1. Several methods to control led display by mobile phone and iPad


1.1 WIFI wireless control


The system uses the mobile terminal (mobile phone, iPad) as the control terminal, and realizes the remote wireless control LED screen for the first time. All its functions can be realized by touch screen control, and zero-second switching is not stuck. Really abandon the traditional keyboard, mouse, software instead of hardware.


Working principle: By installing a wireless router or other wireless device, it bridges with the user's original wireless network, builds a wireless local area network, and conveniently integrates the network control card into the wireless network for wireless network control.


Features: no wiring, easy installation and debugging, fast data transmission.


Required equipment: Bridge, wireless router ( it is best to choosing a device that can change antennas for application on the display , so that it can effectively receive wireless signals).


Disadvantages: The communication distance mainly depends on the gain capability of the bridge.The communication distance of the wireless router is relatively short, and the signal of the partition wall is weak or no signal.It is suitable for places with short-distance wireless signals. If there is wireless signal coverage in the area where your display is located, it is even simpler. You only need to bridge the wireless router connected to the LED display control card in the LED display to your wireless network, so you can control the display on any computer.


1.2 RF wireless control


Working principle: One end of the RF module is connected to the control computer, and the other end is connected to the serial port of the control card. After the driver is installed, the computer generates a virtual serial port and sends data through the serial port.


1.3 GPRS wireless control


Working principle: After the GPRS module is powered on, the process of dial-up Internet access is completed, and the data center server is connected, and the client accesses the server through the client software,and the server forwards the information.


1.4 4G full Netcom wireless control


Working principle: Basically the same as 3G/GPRS.


Features: 4G Netcom (China Mobile, China Unicom, China Telecom full range of support), fast transmission rate, fully real-time control, send commands can respond to relevant control in an instant.


2. Several functions of mobile phone and iPad control LED display


2.1 Graphical preview, visual operation


With the iPad control LED screen, any function is imaged at a glance, if you can play mobile phones, iPad, you can control the LED screen! Before switching, you can preview the content that will be played to prevent misuse, and to be safe and reliable!


2.2 Brightness and volume can be adjusted with one button


According to the actual situation on the spot, the customer can remotely control the brightness of the LED screen (from the brightest to the black screen) and the volume at any time on the iPad, which is simple and convenient. The most important thing is that any operation will not affect the use of the current screen, you do not have to exit the current play!


2.3 Supporting list editing


Before use or in use, customers can sort files,  increase and decrease files, and pre-monitor for broadcast programs at any time. You can set a single loop or list loop when playing a video.


2.4 Picture-in-picture, four-picture, nine-picture one-touch switching

Single-screen playback mode and picture-in-picture (up to four sub-pictures, sub-pictures can be zoomed in and out), four-picture, nine-picture can switch by on one-button, zero-second delay is not stuck.In multi-picture mode, double-click any of them the screen can switch between full screen and window (audio sync).


2.5 Supporting PPT, Word and other Office file playback


In addition to the above functions, the wireless control system also supports the normal playback of Office files (including PPT animation), seamless switching between Office files, and seamless switching with video (ie, can support large video files to play without stuck). A file can be placed in multiple windows and independent of each other, thus pre-supervising the next screen for security.


2.6 Simultaneous editing of subtitles, support for simultaneous and asynchronous recording.

During use, users can edit letters synchronously, record recordings with one click, support simultaneous recording and one recording, and the recorded files can be exported.


2.7 Support multi-screen synchronization


This system can support one control multi-screen. By switching, the playing content of each display can be separately controlled, and multi-screen synchronization control can be performed.


2.8 Other functions


Power off and continuous play: Even if the iPad is turned off, the LED screen will still play in the original mode without playing black screen;

External devices: Supporting direct connection of cameras, DVs, DVD players, laptops, etc., and can synchronize the live broadcast screen by switching one button.


3. Mobile phone and iPad combination control LED display


(With the main control box + LED video processor + WIFI) combination program master control secret box can also be replaced with Millet box, the following main control box for example:


3.1 The mainly implemented functions


The mobile phone (Android, Apple) system is used to control the LED display to play the content in the mobile phone, and the content includes regular pictures, videos etc.


3.2 Required equipment:


1) One Android/Apple system mobile phone

2) One main control box

3) One wireless router (Internet connection required)

4) A set of LED display

5) LED video processor - support HDMI or related HDMI conversion cable (the main control box is HDMI interface)


3.3 Before the control, the device needs to complete the connection and prepare the playback file:


1) Firstly connect the LED display and the LED video processor normally and debug it.


2) Connecting the HDMI output of the main control box to the LED video processor and make the appropriate settings.


3) The wireless router turns on the wireless network, and connects the mobile phone and the main control box to the same WIFI network at the same time.


4) The mobile phone installs a corresponding version of the LED main control system according to the system, and connects to the main control box through the setting.

And backing up the content that needs to be played on the LED stage screen to the mobile phone in advance.


3.4 Specific operation method


1) Through the main control system,the video or photo in the mobile phone and the shared computer will be directly sent to the main control box by swiping up ways. After the main control box receiving, your customized video and picture files will be played directly.


2) You can also play various videos on the Internet through the main control box.


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