| 摘要 |
PURPOSE: A conveyor is provided which has a passenger sensor to control the operational speed of the passenger conveyor. CONSTITUTION: A passenger sensor for a passenger conveyor is disposed adjacent to a floor plate and produces a signal in response to changes in the load on the floor plate, rather than in response to a predetermined level of load. This results in a passenger sensor that does not require adjustment to accommodate the changing conditions of the passenger conveyor. The passenger conveyor includes a passenger sensor that is formed from a piezoelectric cable that extends about the perimeter of the floor plate. The piezoelectric cable is connected to a controller that determines the operational speed of the passenger conveyor. Changes in the load on the floor plate, such as caused by a passenger entering the passenger conveyor, result in the piezoelectric cable generating a signal that is received by the controller. The controller then adjusts the operation speed of the passenger conveyor in response to the signal.
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