JPH06127849A - Device to manage elevator group - Google Patents

Abstract

PURPOSE: To shorten waiting time of passengers on a crowded floor by determining if a waiting floor is crowded or not, allocating a suitable number from a plurality of cages when the floor is determined as a crowded floor, and shifting each of the cages while picking up passengers on its way to the crowded floor. CONSTITUTION: When a passenger waiting for an elevator pushes a hall button 3 on a floor, a load of the floor is detected by a load sensor 1, the number of passengers is computed by a control means 2 based on the load, and then, determination is made if the number of passengers is a predetermined number or not, namely, the floor is crowded or not. When the floor is determined as a crowded floor, a projected response time of each cage is computed based on various kinds of traffic information, and the projected response times are compared with each other. And then, two cages having the shortest projected response times are allocated to the waiting floor and first and second driving means 6 and 7 are driven. Until the allocated cages reach the crowded floor, the cages pick up passengers on the way.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator group management device for managing a plurality of elevator cars arranged in parallel in a building as a group.

[0002]

2. Description of the Related Art In a conventional building in which elevators are installed in parallel, for example, many passengers ride a car in the rising direction from the lobby floor at work in the morning, and many passengers get on the cafeteria floor during lunch. In the crowded floors such as the lobby floor and the restaurant floor, it is necessary to give priority to the car over other floors to improve the service in order to reduce the waiting time for passengers. To that end, assigning an empty car among multiple cars to a congested floor and rushing to the congested floor without making the assigned car respond to calls from the middle floor, work to improve the service. Was there.

[0003]

However, in such a conventional elevator group management device, in order to improve the service on the congested floor, the empty car is rushed to the congested floor and the intermediate floor is emptied. Was passing, so
There has been a problem that passengers on the middle floor have a long waiting time and are uncomfortable.

Further, in order to rush a car to the crowded floor, the car waits until it becomes empty from a plurality of cars, and this car is rushed until it finally becomes empty, so that the passengers on the crowded floor as a whole wait. There is also a problem that the service becomes low due to a long time.

An object of the present invention is to provide a group management device for elevators which shortens the waiting time for passengers on an intermediate floor or a congested floor.

[0006]

In order to achieve such an object, according to the present invention, a congested floor discriminating means for discriminating whether or not a waiting floor is a congested floor, and a congested floor by the congested floor discriminating means. Control means for allocating two appropriate cars from the plurality of cars to the waiting floor determined to be the above, and first drive means for operating the two cars on the congested floor when a drive signal from this control means is input. And a second drive means.

[0007]

When the hall button is pressed on a certain floor and the waiting floor is determined to be a congested floor by the congested floor discrimination means, the control means allocates two appropriate cars. These two cars are operated to the crowded floor while picking up passengers on the middle floor by the first and second driving means.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 and 2 are views showing an embodiment of an elevator group management apparatus according to the present invention.

In the figure, reference numeral 1 is a load sensor embedded in the floor of the hall of each floor, and this load sensor 1 is for detecting the load of waiting passengers on the floor. The detected load is output as a signal to the control means 2 (computer),
The control means 2 calculates the number of waiting passengers.

In the hall on each floor of the building, a plurality of hall doors are provided for riding on a plurality of cars, and a hall button 3 is arranged between these hall doors. The hall button 3 is composed of an upward instruction button that is pressed when it is desired to go above the waiting floor and a downward instruction button that is pressed when it is desired to go below. When the hall button 3 is pressed, a depression signal is output to the control means 2 and a registration signal is output from the control means 2 to the hall button 3 to light it. In addition, hall lanterns 4 and 5 for predicting the arrival of a car by lighting are arranged near each landing door.

The control means 2 manages the operation in accordance with the traffic demand. The position and operation direction of the car, the status of car calls and hall calls, the load status of the cars, the status of the car departure intervals, etc. , And other various traffic information are arithmetically processed, and the two most appropriate cars are assigned to the waiting floor.

The two cars assigned by the control means 2 have a first drive means 6 and a second drive means 7, respectively.
To the waiting floor. At this time, when the two cars are operated to the waiting floor, they are operated while responding to a call on the intermediate floor and stopping.

Next, the operation of the elevator group management device will be described with reference to the flow chart shown in the drawing.

The hall button 3 is pressed by a passenger waiting in the hall on a certain floor (step S ₁ ). The load applied to the floor of this floor is detected by the load sensor 1, and the number of passengers is calculated by the control means 2 based on this load (step S ₂ ). Control means 2 for determining whether the calculated number of passengers is greater than or equal to a predetermined number (congested floor)
Determine (Step S ₃₎ wherein there floor is calculated when it is determined that congestion floor by the control means 2, expected response time of each car based on various traffic information f (i) is the (step S ₄ ). Here, the predicted response time is the registration elapsed time (T _PRE ) until the control means 2 recognizes the depression signal from the hall button 3 and is registered in this register section, and the car waits after the drive signal is output. It is the sum of the estimated arrival time (T _REG ) arriving at the floor (f (i) = T _PRE + T _REG ).

Comparing the predicted response times f (i) of each car,
The predicted response times f (i) among these cars are compared, and the shorter the predicted response time f (i) among these cars is, the higher the evaluation value is given (step S ₅ ).

The car with the highest evaluation value k (min f
(I)) allocated to the first waiting floor, eg to the first driving means 6 consisting of the hoisting machine or the like and outputs a drive signal (step S _6). Next, assign the car m with the highest evaluation value to the waiting floor,
A drive signal is output to the second drive means 7 (step S ₇ ). Lighting the hall lantern 4,5 in each of the landing doors of the car k and basket m (Step S _8). Here, the cars k and m sequentially stop on the way to the crowded floor and pick up passengers on this way. At this time,
Even if the car k becomes full by the time it is operated to the crowded floor, the next car m will pick up passengers on the intermediate floor and will be operated to the crowded floor.

The position sensor detects whether the car k has reached the crowded floor (step S ₉ ). Blink the hall lantern of the car k to indicate that the car k is stopped at the current congestion floor (Step S _10).

The position sensor detects whether or not the car m has reached the crowded floor (step S ₁₁ ). To indicate that the car m is stopped in crowded floors, blink hall lantern of the car m (step S _12). Basket k,
When m is both away from the crowded floor, hall button 3 in this crowded floor is turned off (step S _13).

By the way, if it is determined in step (S ₃ ) that the floor on which the hall button 3 has been pressed is not a congested floor, the most appropriate one car is assigned to the floor and operated as before (step S _14). ).

In order to measure the number of passengers waiting in the hall, not only the method using the above-mentioned load sensor but also a method of predicting the number of passengers by learning the passengers on each floor and a camera, May be installed on the ceiling to determine the congested floor based on the passenger density on the floor.

[0021]

As described above, according to the present invention,
Since two cars suitable for the congested floor are assigned by the control means and the two cars pick up passengers on the middle floor, the waiting time of passengers on the middle floor becomes short. Further, since two appropriate cars are operated without waiting until the cars are emptied to the crowded floor, the waiting time for passengers on the crowded floor is shortened.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an elevator group management device according to the present invention.

FIG. 2 is a flowchart showing the operation of this group management device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Load sensor 2 ... Control means 3 ... Hall button 4, 5 ... Hall lantern 6 ... 1st drive means 7 ... 2nd drive means

Claims (1)

[Claims] 1. A congestion floor discriminating means for discriminating whether or not the waiting floor is a congested floor, and a control for allocating two appropriate cars from a plurality of cars to the waiting floor discriminated as the congested floor by the congested floor discrimination means. An elevator group management device comprising: means and a first driving means and a second driving means for operating the two cars on the congested floor when a drive signal from the control means is input.