How does lcd advertising machine change advertising pictures

1. lcd advertising machine installed a USB flash drive on the interface. You can unplug the USB from the independent LCD advertisement, update data or play information on the computer, and then plug it into the USB interface of the advertisement machine.
2. lcd advertising machine now has two USB ports, one for playing media and the other for updating advertising content. It is to copy the advertising content that needs to be updated to USB and insert it into other USB disks with independent versions.
In this way, the advertising content that needs to be updated can be automatically copied to the original U disk, and then one of the U disks can be unplugged.
3. The online version of lcd advertising machine can be divided into wired network and wireless network. Whether wired or wireless, when changing the advertising content, the LCD advertising machine (display terminal) must be connected to the network. Use the web server attached to the online LCD advertising machine.
The updated advertising content can be sent to the web server through the office computer first, and then sent to the SD card of the online LCD LCD advertising machine through the web server, so that the online LCD lcd advertising machine can play advertisements offline