Information Networks in Elevator Systems

Today, an elevator system forms a network, which includes a group controller, remote monitoring systems and other optional intelligent equipment. Therefore, in order to improve the system, the network is forced to be wider and more complicated, so that it can deal with greater and more various types of information. To cope with the above mentioned situation, it is desirable to introduce a network layer (NWL) protocol for elevator communication systems. In this paper, some features of an elevator network protocol are outlined together with examples of its application.