Elevator passenger interface including special assistance features

摘要

An exemplary elevator passenger interface device includes a touch screen configured to allow a passenger to indicate a request for elevator service by touching the screen. An assistance button is positioned near the touch screen. A controller is configured to determine a destination requested by a passenger touching the screen. The controller is also configured to determine whether the assistance button has been manipulated and then to determine a destination requested by a passenger from a subsequent manipulation of the assistance button.

主权项

1. An elevator passenger interface device, comprising:
a touch screen configured to allow a passenger to indicate a request for elevator service by touching the screen; an assistance button near the touch screen; and a controller configured to determine a destination requested by a passenger touching the screen, and determine whether the assistance button has been manipulated and then to determine a destination requested by a passenger from a subsequent manipulation of the assistance button wherein the controller is configured to
determine that the assistance button has been pressed and released,prompt the passenger to press and hold the assistance button a second time until the passenger hears an audible announcement of the passenger's desired destination from the device,cause an audible announcement of a plurality of possible destinations to be provided to the passenger from the device, anddetermine the passenger's intended destination based on a timing that the assistance button is released relative to the audible announcement.