I. Overview
Since the information input of the traditional LED display can only be directly connected to the computer through the data line, the traditional LED display cannot meet the real-time release requirements of the remote information, and thus cannot construct a large-scale networked LED screen information release. system. The LED information release system can effectively solve the problem of remote display of LED display. Based on GPRS wireless network technology, the system provides a universal LED communication control interface for large-scale networking of LED displays. Whether it is an ordinary text screen or a large screen image screen, as long as the LED wireless transmission terminal is connected, the limitation of the traditional LED display can be broken immediately, and the wireless LED display information display screen capable of large-scale networking can be realized.
The wireless LED information display is a brand-new information media. Once it was launched, it was accepted by a wide range of social groups. Its "mobile" display and the distribution of networked information are more admired by the advertising industry and become a brand new advertising medium. . Regardless of where the LED display is placed and the number of LED displays, the system's main control center can accurately and instantly publish information to one or more or all of the designated LED displays. The wireless LED display information release system can greatly enhance the flexibility and real-time performance of the LED display as an information display carrier to release information, and exerts great effects for expanding the application of the LED display.
Second, wireless LED display information release system network topology
The wireless LED display information release system consists of LED display, LED display controller, F2103 GPRS DTU and wireless LED display information release center platform. The control center displays the information distribution software through the LED, uses the GPRS network as the data transmission carrier, and the wireless data transmission unit and the LED display controller are the access terminals of the LED display screen, and realizes the transmission of the remote control wireless LED display device from the control center. Text information.
Third, wireless LED display information release system features:
(1) Large-scale networking: The content of the traditional LED display is sent by the computer through the serial data line, and the number of displays is limited in size. The wireless LED display information distribution system transmits information through the Xiamen Sixin GPRS DTU, and adopts the TCP/IP network transmission protocol, and the number of terminal networking is not limited.
(2) Post information in real time: The traditional LED display can only display the information stored in the controller fixedly. If new information needs to be released, the information can only be updated through the computer. The wireless LED display can receive the information sent by the information center at any time.
(3) Not limited by distance: traditional electronic display can only be used within a short distance, generally only tens of meters, wireless LED display is available nationwide, as long as the wireless GPRS network can be used everywhere, regardless of distance and Location restrictions.
(4) Convenient installation and maintenance: Since there is no need to lay fiber optic cables or communication cables, the installation position of the wireless LED display screen is easy to select. The product is modular in design for easy maintenance and overhaul.
Fourth, wireless LED display information release system design principles
1. Advanced: Make full use of advanced technologies such as computer interconnection network, mobile wireless communication system, LED display control, etc., and design a domestic advanced wireless LED display information release system. The use of the current advanced system software platform and terminal equipment can not only support the wireless LED display information network publishing needs, but also support the specific business needs of various industries.
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