Can LED Poster Displays Also Support Responses And Interaction?

I. How to implement Q & A and interactivity on LED poster displays:

（1）The LED screen is merely a display device used to present visuals, the actual intelligence, the ability to comprehend and respond, resides in an industrial, grade host computer equipped with an AI voice module, which works in tandem with sensors to trigger interactions.

（2）LED poster display （visual interface）+ industrial PC （central processor）+ data acquisition modules （microphone/camera/touch overlay）+ AI powered large scale speech recognition model.

II. Interaction type of Posters:

（1）Voice Q & A（can speak and answer questions）:

①Microphone input: a built in microphone array captures the user’s speech.

②ASR（Automatic speech recognition）：converting speech into text.

③AI model processing: the host sends text to the AI, and the AI generates a response.

④TTS（Text to speech）synthesis: converts text into speech for playback via speakers, while simultaneously displaying the text or animated visuals on an LED poster screen.

（2）Touch/Motion based interaction（tap and gesture based interaction）:

①Touch: tapping a button on the screen sends coordinates to the host unit, which then executes preset logic（such as displaying an introduction or playing a video）

②Camera/Radar: triggered by approaching person, page turning via hand gestures.

III. Why can’t conventional LED poster screens provide responses or facilitate interaction?

（1）In terms of hardware a standard poster display consists only of a media player + LED screen.

①Advertising player: its function is straightforward, it simply reads images or videos（from a USB flash drive or uploaded via the back end）and plays them on a loop.

②No microphone: cannot hear people speaking.

③No camera/radar/touch frame: cannot detect someone approaching, cannot see gestures, and cannot register clicks.

④Without a high performance industrial PC, there is no computing power available for speech recognition or running AI based Q & A functions.

（2）At the software level: lacks interaction logic and AI capabilities.

①The content consists of a pre-arranged playlist.

②No ASR（automatic recognition）no AI knowledge base, and no text to speech synthesis.