Demand analysis of elevator dispatching

Shijiazhuang Railway University basic teaching building the approximate configuration of the elevator is as follows: The building has 20 floors, four elevators, many passengers ride these elevators, the passenger data is: the average number of 70 kilograms, the heaviest person 120 kilograms, the lightest person has 45 kilograms. Other elevator data can be set autonomously. The 20-storey building is divided into -2,-1,1,2 ... 18. -1,-2 is the underground mall, 1 floor for the lobby, most people from this level into/out of the lobby.
Elevator name number of stops passengers limit weight limit
1 Double layer 1150 kg
2 Double layer 1150 kg
3 single layer 1150 kg
4 single layer 1150 kg
The whole process of taking the elevator is mainly time-consuming in the elevator opening and closing, passengers up and down elevators and passengers and other elevators period.
The time of the switch door is about 5s, the passenger up and down the elevator condition is not good control.
When the total weight in the minimum limit of 45 kg, or the number of passengers already in the largest, the elevator does not need more external requests to stop. The elevator scheduler does not know how many passengers are waiting for each layer, and it does not know how many passengers will appear. This is the same as the real-world situation.
At the peak of each class and class, about---18 people.

To solve the problem: avoid the "bus" worst case, the same floor has several elevators can reach, the floor has a user call, which elevator to respond to the call, should be running to pass through the layer, or the nearest elevator to the layer to reduce the elevator running distance, power saving, improve elevator utilization, reduce equipment wear ，

Its function requirements are: Elevator limit weight alarm, the elevator exceeds the limit, no longer respond to external requests; customer (upstairs, downstairs) information input.

Demand analysis of elevator dispatching