One of the companies I have worked with wanted to add LED panels of about half a square meter to mobile camera installations for crowd control purposes.
If they would do this naivly it would include:
And it would be without diagnostics, as the video player would only know if its outputting a HDMI signal and the controller needs a Windows computer to talk.
Not only is this very power inefficient but also cumbersome and expensive. Furthermore all of this stuff costs money and time to buy and assemble.
What if life could be simpler?
The mayor manufactors of LED receivers (critical translaters between controller and LED’s themselves), say Colorlight and Novastar, have some products with built-in 4G. Unfortunatly they are quite out-of-date and often run old Android versions.
Furthermore the crowd control software is quite a big deal, and not easy to build or implement. Luckily there is a company with a near monopoly on traffic control software in the Netherlands who so happened (were forced to?) to open-source their display protocol. They creatively called it Disperanto and some old documentation is available online. This protocol is very data-light and has enough flexibility to work for crowd-control purposes, even better; this company has already implemented in Javascript for another project.
Therefore a lightweight, 5v (like the LED displays themselves), dead-simple controller using Disperanto could be the key to making this work.
Life is best when we share, and I love it when someone else doing that saves me a lot of time; in this case [PanelPlayer] by ZoidTechnology. It is able to drive Colorlight displays with WebP images and animations/videos.