Elevator system

Details Elevator system Elevator system

B - Operations, Transporting

66

B

364/1

B66B 1/14 (2006.01) B66B 1/18 (2006.01) B66B 3/00 (2006.01)

Patent

CA 1201827

48 ABSTRACT OF THE DISCLOSURE A plurality of elevator cars under the supervi- sory control of a dispatcher processor. A communication processor having a plurality of buffers, a memory shared by both the dispatcher processor and communication proces- sor, and an interface between the communication processor and the elevator cars, cooperatively control the flow of information. Car status information, prepared by the elevator cars, is sent to the dispatcher processor via the interface, buffers and shared memory. Car mode information prepared by the dispatcher is sent to the elevator cars via the shared memory, buffers and interface. A semaphore access arrangement speeds up access to the shared memory, and interrupts control transfer of information between the buffers and interface. In the communication process, the dispatcher processor only loads and unloads the shared memory, and the communication processor loads and unloads both the shared memory and the buffers.

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