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This design aims to solve the problem that when people step on the escalator, they need to mind their step carefully to stand on the right place.It is inconvenient and dangerous.Using the truth that
the conveyor belts and the pedal operate synchronously, we can redesign the conveyor belts handrails and the pedal.Section the conveyor belts to two color,and match the pedal with the color,we can easily stand on the right place.