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When we waited at the entrance, we didn't know if the next subway car was crowded. If it was too crowded, we needed to change the car. This is not just a waste of time in the car. Also wasting subway resources.Configure a thermal sensor on the top of the subway car to analyze the crowd density and display it in the waiting are a of the next station.When using the shunting device, people know which car is crowded and can choose other cars.
Jiangxi Normal University
Jingxi Normal University