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With an increase in the number of high-rise buildings, large-scale facilities, tower apartments and condominiums, elevators are the core transportation mode in these structures. Consequently, a rapid and accurate traffic control system is essential for elevators to respond to complicated and heavy traffic demand.
Fujitec has made further advancements in the Elevator Group Supervisory Control System by concentrating on the development of leading-edge technologies.

As a result, the new generation system utilizes optimal group supervisory control functions, such as the Virtual Passenger Optimization Method, which controls elevator traffic by forecasting the distribution of all future passengers and the Destination Reservation Guidance System (an optional specification with additional charges), which enhances the transport efficiency by registering the destination floors in advance.

Applications for FLEX-NX Series

Applications for FLEX-NX Series

Virtual Passenger Optimization Method

he system predicts traffic demand in the whole building, including passengers expected to arrive later. The average waiting time can be reduced by up to 10%*.

Comparison Simulation with Conventional Group Supervisory Control SystemIn conventional group supervisory control systems, elevator calls are assigned by using a predicted response time from the hall call registration to the arrival of an elevator as the evaluation index.
The predicted response time, however, only equals the waiting time of the person who first registered a hall call.
Ideally, it is necessary to evaluate the waiting times of all passengers, including future users that arrive at the stop.
Fujitec has newly employed the Virtual Passenger Optimization Method, which virtually calculates the long-range waiting time of each passenger, based on extrapolated passenger arrival rates by travel direction at each floor, from past learned data in order to execute the group supervisory control.
The system probabilistically extrapolates the number of passengers who arrive later at a stop where a hall call had already been registered or passengers who arrive at a stop where no hall call had been registered and then the system comprehensively calculates the passenger waiting time.
With such a design, it is possible to accurately reflect and predict the traffic situation of the whole building for the elevator traffic control, thereby enabling a reduction in the average daily waiting time for all passengers by up to 10%.

*

Compared to our conventional products. The value is based on validated results from a simulation that reproduced daily passenger traffic in a high-rise condominium. For office buildings, the average waiting time will be reduced by up to 5%.
The reduction in the average passenger waiting time may differ depending on the elevator system configuration or on traffic conditions.


Destination Reservation Guidance System (Optional specification with additional charges)

The system accepts the advance registration of a destination floor and chooses the optimal elevator car. It reduces the journey time in an office building during the up-peak period by up to 30%*.

For a short duration many users are concentrated on the lobby floor of office buildings during the up-peak period. Conventionally, elevator users register a hall call in the desired direction and board an arriving elevator irrespective of the destination floor.
Therefore, the elevator may stop at many floors when transporting passengers, resulting in a longer journey time.
With the Destination Reservation Guidance System (optional specification), a passenger uses the Destination Floor Registration Panel installed near (or within) the elevator hall to register a destination floor.
The system uses this data to limit the number of destination floors assigned to each elevator in order to improve transport efficiency; thereby not only easing congestion, but also enabling a reduction in the journey time by up to 30%.

*

Compared to our conventional products. The value is based on validated results from a simulation that reproduced daily passenger traffic in an office building.
The reduction in the journey time may differ depending on the elevator system configuration or traffic conditions.