Abstract: An elevator system having a plurality of elevator cars under group supervisory control. An auxiliary dispatching control is connected to the existing telephone system of the building, arranged to enable callers to have cars dispatched to predetermined floors at selectable times of the day.

Abstract: An interactive, real time elevator bank simulation system including a display panel, dispatcher control, and a processor unit. The display panel includes illuminable control devices and illuminable display devices which are controlled to represent movement of the various elevator cars of the bank. The control devices enable an operator to interact with the system, such as by entering traffic requests, and to observe in real time the results of the requests on the operation of the elevator bank. The operator initiated requests are processed by the processing unit, and the processing unit controls the illumination of the operator actuated control devices on the display panel. This positive feedback arrangement provides optical acknowledgment to the operator that his request has been received by the processor unit.

Abstract: A monitoring system for off-site monitoring, traffic study and/or trouble shooting of elevator installations. Communication between the remote monitoring site and a selected elevator installation is established via a direct dial telephone link. The remote monitoring site includes visual display means for displaying the operation of the selected elevator installation in real time, means for storing and analyzing status signals from the elevator installation, as well as for printing out the results of such an analysis, and control means for entering commands to be executed by the elevator system.