Qiping elevator projection advertising machine is a professional projection advertising machine for elevator application scenarios. It is developed in strict accordance with industrial standards to ensure normal operation 24 hours a day, 365 days a year, with low failure rate and stable performance! When the elevator door is opened, the projection screen is closed. When the elevator door is closed, the content will be automatically projected to the elevator door to play, regularly turn on and off, WIFI or 4G networking, and remotely replace the advertising content.