ΣAI-2200C

Key Benefits of ΣAI-2200C

Less travel time

In addition to the reduction of waiting time, this group control system reduces travel time (from boarding a car to arriving at a destination floor) by individualized car allocation.

More flexible car allocation

Traffic conditions in a building change constantly. This group control system has a function to allocate the cars flexibly in response to the traffic conditions by sending the cars to a congested floor during periods of heavy traffic.

More building space

Destination Oriented Allocation System (DOAS) increases handling capacity. Compared to the conventional control system, DOAS allows reduction in car size and hoisting area. The space saved can be used effectively for other building facilities.

Less irritating

This group control system evaluates not only actual waiting time but also psychological waiting time by assessing the probability of full-load bypass and prediction error, etc. The optimal car allocation based on the evaluation minimizes irritation of all passengers.

Less waiting time

ΣAI-2200C reduces not only passengers' waiting time but also long-wait. The longer passengers wait for a car, the more they become irritated.

More energy-saving

With our smart control technology, when a passenger presses a hall call button, the system selects the elevator that best balances operational efficiency and energy consumption. Selection is based on each elevator’s potential energy consumption according to its current location and passenger load.

Cooperative Optimization Assignment

Forecasting a near-future hall call to reduce long waits

When a hall call is registered, the algorithm predicts a near-future call that could require long waits. Through evaluation of the registered hall call and the forecasted call, the best car is assigned. All cars work cooperatively for optimum operation.

Energy-saving Operation - Allocation Control (ESO-W)

Maximizing operational efficiency and minimizing energy consumption

This system selects the elevator in a group that best balances operational efficiency and energy consumption. Priority is given to operational efficiency during peak hours and energy efficiency during non-peak hours.
Car allocation that maximizes operational efficiency does not necessarily translate to energy efficiency. A car uses energy efficiently when it travels down with a heavy load, or up with a light load. Accordingly, if multiple cars have the same traveling distance, this system chooses the car that requires the least energy.
Through a maximum 10% reduction in energy consumption compared to our conventional system, this system allows building owners to cut energy costs without sacrificing passenger convenience.

Dynamic Rule-set Optimizer (DRO)

Selects optimum car allocation through "rule-set" simulation

The neural network technology has enabled the system to continually and accurately predict the passenger traffic within intervals of several minutes. A high-speed reduced instruction set computer (RISC) runs real-time simulations using multiple rule-sets and the predicted passenger traffic to select the rule-set which optimizes transport efficiency.

Simulation example and performance results of each rule-set

The diagram below shows an example during a morning up peak time. An ideal rule-set is selected every few minutes according to the predicted traffic conditions.

Immediate Prediction Indication (AIL)

Easing stress of waiting at elevator hall

When a passenger has registered a hall call, the designated car is selected and the corresponding hall lantern immediately lights up. To inform the passenger of the car arrival, the hall lantern flashes on and off for three seconds before the arrival.

Second Car Prediction (TCP)

Reducing passenger congestion

Automatic Hall Call Registration (FSAT)

Enhancing user convenience

Car Arrival Chime - Hall (AECH)

Signaling car arrival by sound

Voice Guidance System (AAN-G)

Reassuring passenger safety

Destination Oriented Allocation System (DOAS)

Passengers register their destination floor using a hall operating panel before entering the elevator, eliminating the need to press the button inside the car. Furthermore, dispersing passengers by destination prevents congestion in cars and minimizes waiting and travel time.

Key Benefits of DOAS

Enhanced Convenience

Individualized Car Allocation Based on Travel Time

This system evaluates passengers' travel time from registration of a destination floor at a hall to arrival at the destination floor and predicts their waiting time. As this system allocates an optimum car to each passenger on the basis of the predicted waiting time, passengers' travel time can be reduced.

DOAS Integrated with Security Gate

Extended feature for more security

*Please consult our local agents for details.

The destination floor can be registered automatically after passing a card over a card reader at the security gate entrance. DOAS integrated with security gates provides a seamless journey and enhances security in the building.