In response to the development of The Times, mobile phones and ipads have become more and more computer-enabled, which means they can work online on their phones and ipads. Since most of mobile phone and the device can realize the computer function, so the use of mobile phones and the control led display is a cinch, so they are how to control the led display screen, what principle, let the led display screen manufacturers to resolve for you.
How do mobile devices control LED displays?
In fact, one of the most important reasons why phones and ipads control led display screens is to connect these devices, so does the phone and the ipad need the Internet to connect? The answer is no, you just need WIFI to connect.
One, cell phone and ipad control led display of several methods
1.1. WIFI wireless control
With the mobile terminal (mobile phone, IPAD) as the control terminal, the remote wireless control screen is realized for the first time. All functions of the system can be realized by touch screen control. Instead of the traditional keyboard, mouse, software instead of hardware.
Working principle: by adding wireless router or other wireless devices, with users of the original bridge wireless network, build a wireless local area network (LAN), convenient control the network card into the wireless network, wireless network control.
Features: no wiring, easy installation and debugging, fast data transmission.
Equipment: bridge, wireless router (preferably a device that can be used to change the antenna on the screen, which can effectively receive a wireless signal).
Disadvantages: the communication distance mainly depends on the gain ability of the bridge, the communication distance of the wireless route is relatively short, the wall signal is weak or no signal. Suitable for short distances with wireless signals. If you display area had the wireless signal coverage, that is more simple, only needs to be within the led display and led display control card connected wireless routers receive your wireless network, the bridge can be trying any control on a computer screen.
1.2. RF wireless control
Working principle: the RF module receives the control computer at one end, the other end receives the control card serial port, the computer installs the driver, generates a virtual serial port, and sends the data through this serial port.
1.3. GPRS wireless control
Working principle: the GPRS module is connected to the data center server after the power of the GPRS module is connected to the data center server, and the client accesses the server through the client software, which is forwarded by the server.
1.4. 4G full netcom wireless control
Working principle: same as 3G/GPRS.
Features: 4G total netcom (China mobile, China unicom, China telecom full series support), rapid transmission rate, complete real-time control, send commands instantaneous response to relevant control.
Two, the cellular phone and the ipad control the several functions of led display screen
2.1 imaging preview, visualization operation
With the IPAD screen, any function is visualized, it is easy to see, will play mobile phone, IPAD, will control LED screen curtain! Before switching, it is possible to preview the content of the upcoming play, to minimize the error of operation, safe and reliable!
2.2 brightness and volume one-click arbitrary adjustment
According to the actual situation on the site, the client can always control the screen brightness (from the brightest to black screen) on the iPad, and the volume is simple and convenient. The most important thing is that any operation will not affect the use of the current screen, and do not exit the current play!
2.3 support list editing
Before or during use, customers can always file, list, add, subtract and pre-monitor the programs. You can set up a single cycle or list loop when you play video.
2.4 painting, four pictures, nine screen one key switch
Single screen play mode and painting (up to four points, with a maximum of four frames and size), four frames and nine frames, can be switched with one key and zero second delay. In multi-screen mode, double-click any screen to switch full screen and window (audio synchronization).
2.5. Support powerpoint, Word and other Office documents
Wireless touchscreen systems support the normal play of Office files (including PPT animation), seamless switching between support Office files, as well as video and seamlessly switch (that is, able to support large video file BuKa was played). A file can be placed in multiple Windows, independent of each other, and thus preprison the next screen to ensure security.
2.6. Able to synchronize edit subtitles to support synchronous and asynchronous video
In the process, the user can edit the letter synchronously, a key can record the recording, support the synchronization video and a video, the recorded file can be exported.
2.7 support multi-screen synchronization
This system can support one control multiple screen. By switching, it can control the playback content of each display screen separately, and the multi-screen synchronization can be controlled.
2.8. Other functions
Blackouts: even if the iPad is turned off, the screen will play in the original mode.
External equipment: support camera, DV, DVD player, laptop computer and other equipment signal straight connect, and can synchronize the live broadcast images, but one key switch.
The combination of mobile phone and ipad control led display screen
(use the main control box + LED video processor + WIFI). The main control box can also be replaced with xiaomi box. The following main box is:
3.1 main implementation functions
Use the mobile phone (android, apple) system to control the contents of the phone, including regular pictures, video, etc.
3.2 required functional equipment:
1) android/apple system;
2) main control box;
3) wireless router (need to connect Internet);
4) a set of LED display screens;
5) LED video processor [support HDMI or related HDMI conversion line (the main control box is HDMI interface)];
3.3 the preparation of the connection and playback of the equipment to be completed before control:
1) first, connect the led screen and led video processor to normal connection and debug;
2) connect the HDMI output of the main control box to the LED video processor and make corresponding Settings;
3) the wireless router opens the wireless network and connects the phone and the main control box to the same WIFI network.
4) the phone installed a corresponding version of the LED master control system according to the system and connected to the main control box,
And back up the contents of the LED stage screen to the phone in advance.
3.4 specific operation methods:
1) through the main control system charged with mobile phones, video or photos in a Shared computer by struck way directly sent to the master secret box, master secret box after receiving will directly play your own video and image files;
2) you can also play various video and other items in the Internet via the main control box