Airport self check in kiosk are a convenient and efficient part of modern travel. They are usually located at the boarding gate or baggage claim area, providing passengers with a variety of self-service services. Through these airport kiosk, passengers can check in, print boarding passes, and even choose seats by themselves. These devices are easy to operate and are usually operated through a touch screen or scanning a barcode, which greatly saves passengers' waiting time in line and improves the convenience and comfort of travel. Passengers can complete check-in or baggage check-in at the time and place of their choice, without being restricted by the opening hours of the counter. Airport self-service machines have played an important role in improving the travel experience and have become an indispensable convenience for modern travelers.