LED display control system (LEDDisplayControlSystem) is a system that controls the correct display of LED large screen according to user requirements. It is divided into two categories: networked version and stand-alone version according to the networking method. The networked version, also known as the LED information release control system, can control each LED terminal through the cloud system. The stand-alone version is also called the LED display controller and the LED display control card. It is the core component of the LED display. It is mainly responsible for converting the external video input signal or the on-board multimedia file into a digital signal that is easily recognized by the LED large screen. The device that illuminates the LED large screen is similar to the graphics card in the home PC, except that the display in the PC is a CRT/LCD, etc., and the display in the system is a large LED screen. According to the access signal mode, it can be divided into a synchronous system and an asynchronous system.
Graphic display system
Generally, the LED display screen that displays graphics and text is called a graphic screen. The main feature of the graphic screen is that the light-emitting devices in the LED dot matrix are only turned on or off, but the intensity is not controllable, that is to say, the screen has no gray level control.
Image display system
The image display screen is relative to the graphic display screen. It refers to those screens with gray scales. The displayed images are more vivid and vivid. The main features of the image screen are displayed with limited gray level and color modulation. Images with low color and grayscale requirements.
Video display system
Based on the research of the display screen control system, the LED display capable of receiving video signals and displaying moving, clear, full-color images is called a video display.
Second, according to the control method, we divide the display system into two categories.Communication display system
The communication display screen is an asynchronous display screen. The asynchronous mode means that the LED screen body itself has the ability of storage and automatic playback. The displayed information on the PC and the display information without grayscale pictures or the location code and picture of the Chinese characters are The number and other control commands are transmitted to the LED screen controller through the serial port or other network interface, and the various data information pre-stored in the controller is called, and the received command is processed into the dot matrix data required for the display to be displayed to the display. On the screen. Such screens generally do not have multi-level grayscale display capabilities, and are mainly used for displaying text and simple graphic information, and can be multi-screened. This approach requires a controller with a CPU to process the information.
Real-time mapping screen system
The real-time mapping screen is a synchronous display. The basic function is to realize the real-time mapping of the computer screen content by the LED display, including displaying the Video video image with the support of the multimedia card. The data is taken out from the characteristic port of the host graphics card or the video card, and the data to be displayed is taken out, and then the data is processed to the LED display. This way you can do it without a controller with a CPU, or even just a hardware card.
The 256-level grayscale LED display system enables the LED display to be synchronized with the computer and achieves a high-performance display. The 256-level gray LED display control is composed of a multimedia card, a video controller, a long line driver, a receiving card and a display unit. The video controller obtains the digitized display signal from the standard display interface of the multimedia card, converts it into the signal format required by the display screen, and obtains the control signal from the standard interface of the computer, and the user completes the control of the LED display screen through the computer software. Adjust and make the display adapt to different specifications of multimedia cards, with a high degree of compatibility.
Third, classify from the way of communicationWired communication
A communication method using a tangible physical medium such as a cable or an optical fiber as a medium. For the current application, data transmission is generally performed through a dedicated channel. This method is expensive, and it is believed that wired communication based on the public network will be more widely applied in the future. The use of Interent for data transmission is also one of the main methods used by this system.
Wireless communication method
A method of transmitting information from a monitoring center by radio waves between an LED screen controller and a monitoring center within a communication distance range. This approach saves system investment, shortens the construction cycle, and reduces the possibility of system theft. This type of communication is similar to the form of mobile short message using GSM, GPRS or CDMA networks for transmission, and also uses the broadcast tower to transmit and receive signals using FM or AM.
Asynchronous control
LED display asynchronous control system is also called LED display offline control system or offline card. Mainly used to display a variety of text, symbols and graphics or animation. The screen display information is edited by the computer, and the frame memory of the LED display screen is pre-positioned through the RS232/485 serial port, and then displayed on the screen by screen, and the display mode is colorful and varied. Its main features are: simple operation, low price and wide range of use. LED display simple asynchronous control system can only display digital clock, text, special characters. In addition to the function of the simple control system, the LED display graphic asynchronous control system has the largest feature of controlling the display screen content by region. Support for analog clock display, countdown, picture, table and animation display. With time switch, temperature control, humidity control and other functions
Synchronous control
LED display synchronization control system, mainly used to display video, graphics, notifications, etc. in real time. Mainly used for indoor or outdoor full color large screen display. The LED display synchronous control system controls the LED display to work in the same way as the computer monitor. It maps the image on the computer monitor in real time with a refresh rate of at least 60 frames per second, usually with multi-gradation color display. Ability to achieve multimedia advertising effects. Its main features are: real-time, rich expression, complicated operation and high price. A set of LED display synchronization control system generally consists of a sending card, a receiving card, and a DVI graphics card.
The flight control electronic display editing software is a very powerful LED display control software. The flight control led software allows you to edit the flight control LED display screen content on the computer, such as adding a program list, adding subtitles and text, adding a picture. Text effects and so on. You can also insert dates to display weather display and timing display. Support school time and brightness adjustment, time switch machine.
2, lyrebirdLyrebird is a universal multimedia information publishing software that helps you easily edit all kinds of media information and publish it to various display devices. It can manage multiple different types of devices with a unified interface, which helps users to edit and play media information more conveniently. The system also supports advanced functions such as network operation, automatic timing scheduling, and external control interface.
The system is composed of "editor" and "player". All device management and media editing functions are completed by the operator on the editing side, while the playback end is unattended. The player can be installed on multiple computers in the LAN, and each of them transmits data to the display device through a serial port or a video interface. Users on the editor side can manage all of these devices in a unified manner.
3, LedshowTWLedshowTW is a professional LED graphic controller editing software developed by Yangbang Technology. The latest LedshowTW2014 version supports BX-5QL full color strip controller, which effectively improves U disk compatibility and fault tolerance.
LedshowTW function introduction
Rich program management functions;
Powerful material editing tools;
Efficient communication data compression;
Novel colorful magical borders;
Advanced background overlay technology;
Convenient text animation editing;
Support BX-5QL full color strip controller;
Support 16-line high display double-row digital and English characters;
Effectively improve U disk compatibility and fault tolerance.
This is a universal bar screen software, most of the screens can be used! Professional version of universal playback software, suitable for the following types of control cards: TF20/TF25/TF30/TF32/TF40/TF42/TF-A/TF-B/F+.
5, LedArtistLedArtist is an easy-to-use LED advertising screen subtitle editor. If you have LED signage, this software is very reliable, easy to operate and intuitive. The following is freely made during the small series test, the effect is not bad!
6, ledcontrolsystemZHledcontrolsystemZH series LED display control system is a new concept LED control system, can achieve more than 2,600 special effects combination, is the industry's most special led display control system.
ledcontrolsystemZH function introduction:
Ledcontro graphic management system pioneered the industry font stretching and offset function, making the screen display more user-friendly; and taking the lead in adopting the LedOS operating system, making the system run more efficient and stable, and the picture is smoother; and also firstly solved the screen screen running speed is displayed. The technical problems of the industry affected by the screen area make the left shift effect smoother, and its performance is far ahead in the industry.
7, EQ cardEQ card software is a very easy to use and powerful LCD display control software, mainly used for the editing of LCD display content, with multi-screen multi-area and multi-program simultaneous editing functions, support text / image and many other The format is suitable for the station dock \ hospital \ bank \ post office \ government and other fields, with it can make LCD advertising editing easier. Friends who need this tool can come and download it.
XShow graphic editing software is a control to display subtitles, pictures, dynamic background and so on. The software is easy to operate, plug and play, and supports the card custom led display control software for fully customized operation.
XShow graphic editing software features:
Intelligent identification screen, plug and play;
a simplistic font
Novel dynamic background technology;
Unparalleled performance;
Rich, chic interface;
Detailed operational data;
Complete software support.
9, LED display program editing softwareLED display program editing software is a practical software for making and editing LED programs. The software interface is simple and easy to use. It can help you to arrange the programming on the display.
Software features:
The advanced DerectX image display technology makes the screen display smooth and handles the flicker.
The operation is intuitive and what you see. You can easily and intuitively arrange a variety of graphic elements, all display elements support mouse drag and drop; design ideas in accordance with MicroSoftPowerPoint. Display elements include animation, images, sounds, videos, text, geometric images, tables. It supports all image format files, video files, txt, rtf text files, flash files, and can also access the Internet to broadcast live content. More than 200 stunt patterns and accompanying sounds can be set for all display elements.
If you have a specific video card installed, you can also display the video footage received by the video card. User layout can be saved as a file. The "small movie" you designed with this software is saved into each file, and you can open this file for playback when you need to play it.
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