Multiple lifts are coordinated and optimised by a Group Controller.
A group controller can be configured to control a bank of legacy relay lift controllers as an 'overlay'. Improving the traffic handling of the building without the expense of replacing all the lift controllers.
The Alphasoft software that implements our high performance group controller is 'Despatch-32'.
Despatch 32 is a computer program that handles landing calls and optimises the traffic handling of a lift system using detailed knowledge of the current lif positions and call loads. It can replace an existing relay or electronic group controller or common section. Optional software modules provide the handling of security or lift monitoring. An interface/controller enclosure is provided for each lift and connects back to Despatch32 through a twisted pair RS485 network.
Despatch 32 has several advantages over older relay or electronic group controllers.
The graph below shows actual traffic data of a four lift, Despatch 32 system (blue), and the trend line of the same building's original 'Otis VIP' relay system (black). The reduction in waiting times gained by replacing the relay group controller is substantial in light and heavy traffic.