At present, many large and medium-sized cities, counties, towns and towns, and public institutions in China can see the LED display screen everywhere . With the popularity of outdoor LED displays , it has been integrated into our lives. The outdoor full-color LED display can be used not only as a carrier for advertising video, but also as an external platform for government agencies to publish government information and city videos. The full-color LED display can spread information, beautify the city image, and improve the city's grade, so it receives strong support from the government. In response to China's vigorous development of the information society, according to the current development of wireless communication in China, outdoor LED display screens are increasingly using asynchronous LED control cards, compared with typical wireless LED control cards, mainly through 2G/3G/4G . Wireless control of the LED screen, including settings for the desired upload and LED screen. The reason why outdoor LED displays favor wireless LED control cards is mainly because wireless LED control cards have the following four advantages:
1 , easy to operate, easy to publish information
　　 The LED display is connected to the server through wireless communication. It can be used to publish advertising content and control the LED screen simply by using the relevant software or the cloud platform built on the login server , which is convenient and fast.
2 , cluster control, saving time and effort
Outdoor LED displays generally have a number of features and a wide distribution. The wireless LED control card has an IP number for each card . The cloud platform can control a single IP address or multiple IP addresses, which greatly simplifies. The post-release work of the program ; through 2G/3G/4G wireless communication, as long as there is a signal, no matter how far the distance is distributed, the LED display can be remotely controlled .
3 , emergency information real-time insertion mechanism, rapid dissemination of advertising
This is the most prominent advantage of the wireless LED control card. It is especially suitable for government agencies such as the Meteorological Bureau and the Public Security Bureau. It needs to insert emergency notification information, and only needs to select the LED screen to be played through the software , and immediately upload the emergency notification information, which is very fast. Convenience.
4 , simple installation, cost-effective
The wireless LED control card sets the relevant screen adjustment button, and the self-adaptive LED display is programmed by the programming , which is convenient and simple to adjust the parameters of an LED display screen , and does not require such a troublesome debugging process to the computer ; the computer is omitted. Or a series of costs such as receiving cards, as well as labor costs for post-management, the cost performance of wireless LED control cards is very high.
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