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Sometimes it takes a lot of time to find an empty space in a large parking lot. Using this light on the floor, people can easily find an empty space while they’re driving on a main path, and do not have to take a time wasting long route. The pressure plate in the parking space will determine whether there is a car or not. When a car is in the parking space, the pressure plate will turn off the light in front of this space to let other drivers know.
LIN,LIANG-JUN CHANG,JIA-YU ZHAN,ZI-LIN HUANG,CHANG-RUEI