JPH07277609A - Control device of elevator system - Google Patents

Abstract

PURPOSE:To provide a control device having a good efficiency of equally distributing transport load to plural sets of multi-car elevator systems arranged side by side. CONSTITUTION:Plural sets of multi-car elevator systems in which plural cars 1 are traveled are arranged side by side in a circulating elevating path formed by a rising side elevating path 2-1, an upper machine room 3-1, a descending side elevating path 2-2, and a lower machine room 3-2. At this time, in the case of an example shown in the drawing, as the total number of calls is 10 and the total of passengers is 18 in a first set, and those are 5 and 7 in a second set, the transport load is higher in the first set. Accordingly, the distribution of transport load can be equalized by serving users considered as an object of service with the second set of a multi-car elevator system.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator operation control device, and more particularly to a control device for highly efficiently operating a multicar type elevator system that operates a plurality of cars in a common hoistway.

[0002]

2. Description of the Related Art Conventionally, elevators and escalators have been widely used as elevator systems for vertically transporting passengers in buildings. The elevator was provided with a traveling shaft for each car, and freely traveled in the vertical direction inside the shaft.

When multiple elevators are installed side by side,
Elevator group control is widely used for efficient operation. As an example, Japanese Patent Publication 5-59032
Japanese Patent Publication discloses a group management control device having a system configuration for distributing control devices.

However, in order to increase the usable area in a building, a multi-car type elevator system in which a plurality of cars travel in a common hoistway rather than an elevator having a separate hoistway for each car It is advantageous, and its technology has been applied and published.

For example, as a mechanism of a multi-car type elevator system, a combination of a lifting drive rope and a direction reversing mechanism is disclosed in JP-A-1-267287.
There is a self-propelled type which is driven by a linear motor installed in a car in Japanese Patent No. 078.

[0006]

Even in the multi-car type elevator system, even if the number of cars in the circulation path is simply increased, the interference between the cars becomes a problem and the transportation capacity cannot be increased. Therefore, it is necessary to install multiple sets of multi-car elevator systems.

However, the Japanese Patent Publication No. 5-59032 also has a control system configuration in an elevator, and both the operation between a plurality of sets of multi-car type elevator systems and the operation of individual cars within each set are simultaneously performed. It cannot be applied to a system that needs to be controlled. So far, the control system configuration when multiple sets of multi-car elevator systems have been installed side by side has not been studied.

Further, no study has been made on a highly efficient operation method when a plurality of sets of multi-car type elevator systems are installed. In the multi-car system elevator system, it is difficult to calculate the estimated arrival time because of interference between the cars, and the elevator group management control method based on the estimated arrival time cannot be applied. There was a problem.

It is an object of the present invention to provide a flexible control device configuration which does not depend on the number of the multiple cars when a plurality of multi-car type elevator systems are installed side by side.

Another object of the present invention is to provide a control device which realizes highly efficient operation when a plurality of sets of multicar type elevator systems are installed side by side.

[0011]

In order to solve the above-mentioned problems, a control system in the case of installing a plurality of sets of multi-car type elevator systems is common to the operation control device for each set of multi-car type elevator systems. It is composed of an overall control device.

Further, the operation control device for each set of the multi-car type elevator system includes a transportation load calculation means and a service car determination means, and the overall control device includes a new hall call allocation set determination means. It was done.

Further, the present invention provides a system in which at least one operation control device has the function of the overall control device, thereby simplifying the overall configuration of the control device.

[0014]

The transport load calculating means in the operation control device for each set of the multi-car type elevator system calculates the transport load value of the set based on the usage status of the set (number of calls to be received, number of people in the car, etc.).

The new hall call allocation group determining means in the overall control device compares the transportation load values and allocates the new hall call to the group so that the transportation load becomes uniform in each group. Determine the group number.

The multi-car type elevator system, the service car determining means in the operation control device for each group, among the plurality of cars in the corresponding group for the allocation determined by the allocation group determining means for the new hall call From, determine the car that will respond to the assigned call. The system configuration can be simplified by providing at least one operation control device provided in each set with the function of the overall control device.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

First, an outline of a multi-car type elevator system to which the present invention is applied will be described with reference to FIG.

The multi-car type elevator system includes an ascending-side hoistway 2-1 used for traveling in the ascending direction, a descending-side hoistway 2-2 used for traveling in the descending direction, and a hoistway having two traveling hoistways. Machine room 3 at the top moving from -1 to 2-2
Lower machine room 3-2 moving from -1, 2-2 to 2-1
A plurality of cars 1 travel in the circulation type hoistway constituted by.

As a traveling mechanism of the car 1, for example,
Japanese Patent Application Laid-Open No. 3-152078 discloses a self-propelled linear motor, and Japanese Patent Application Laid-Open No. 1-267287 discloses a combination of a lifting drive rope and a direction reversing mechanism.
However, according to the present invention, the car 1 is a circulation type hoistway 2-1.
3-1, 2-2, 3-2 can be applied regardless of the drive mechanism as long as it can travel independently with other cars, so what kind of system is used for the drive mechanism of the car Good.

In FIG. 1, the case where the number of cars is six is described as an example, but as will be described below, it is obvious that the present invention can be implemented without being limited by the number of units and the number of floors. Further, it can be applied without problems even in the case of a circulation type hoistway in which the guide rails of the car are constituted by a double track on the middle floor and a single track only on the end floor, such as a switchback system of a railway line.

Next, the basic idea of the present invention will be described.

Even in the multi-car type elevator system, mutual increase in the number of cars in the circulation path causes a problem of mutual interference and the transportation capacity cannot be increased. In addition, since it is necessary to stop all the cars in the same circuit at the time of maintenance etc., if only one set of multi-car type elevator system is installed, the effect of suspension of operation will be very large. . Therefore, depending on the situation, it is necessary to install a plurality of sets of the multi-car elevator system shown in FIG.

In the multi-car type elevator system using the circulation route shown in FIG. 1, even if a plurality of sets are provided side by side, the car 1 can freely travel within the circulation route to which it belongs, but from the current circulation route. You cannot move to another circuit.

When a multi-car type elevator system of the type in which the car does not move over the circulation path is installed,
The efficient operation state is a state in which the usage load is not biased to one specific group and the transportation load is evenly distributed to all the groups.

An example of the operating state is shown in FIG.

FIG. 2 shows an operating state at the moment when a new user issues a usage request from the hall in a building having two sets of elevator systems each having six cars. Here, for convenience of drawing, it is assumed that the car circulates clockwise in the first group and counterclockwise in the second group.

At this time, in the elevator system of the first set, the total number of calls (total number of hall calls already assigned and destination floor registration in the car) is 10 and the total number of passengers in the car is 18 people. On the other hand, the second group has five and seven persons, respectively, and the transport load is biased to the first group. Therefore, it is desirable that the users shown in the figure are served by the second group.

Thus, the basic idea of the present invention is
Efficient operation is realized by calculating the load for each set for multiple sets of elevator systems and determining the set that will serve to equalize the load in response to user requests. is there.

An embodiment of a control system and a control method for realizing this basic idea will be described below.

FIG. 3 is a block diagram of a control system according to an embodiment of the present invention.

One set of multi-car type elevator system is
It is composed of a car control device 7 corresponding to a plurality of car 1, and an operation control device 5 for determining the operation of the car.
Further, a common overall control device 4 and hall call button 7 are installed for a plurality of sets of the multi-car type elevator system.

In the present embodiment, the number of multi-car type elevator systems composed of the operation control device 5, the car control device 6, and the car 1 is M, and the number of cars in one multi-car system is one. Is denoted as N basket. As will be apparent from the following description, the present invention can be implemented with any number M of the combined cars and the number N of the cars.

Further, the multi-car type elevator system is
When counted as a “group” and a specific group is designated, it is described as “i-th group”.

In response to a use request from the hall call button 7, a first process of deciding and allocating which set among a plurality of sets of multi-car type elevator systems responds, and a plurality of cars of the corresponding set. A second process for determining which car in the car to service.

The overall control unit 4 compares the load value (described later) calculated by the operation control unit 5 of each group with the usage request signal from the hall call button 7 and responds to the hall call. Allocation group determination unit 20 for performing first processing for determining
including.

The operation control device 5 responds to an allocation command from the load calculation unit 10 for calculating the operation state in each group as a transportation load value and the overall control device 4 and selects among the plurality of cars of the corresponding group. Second to decide which car to service
The operation determining unit 30 that performs the processing of 1 is included.

The car control device actually runs or stops each car 1 based on the command from the operation control device 5. The car control device 6 also performs a rear-end collision prevention process for another car. As a rear-end collision prevention, a method of using “blocking” for setting a predetermined interval for rear-end collision prevention between each car can be considered, but the present invention is applicable to any rear-end collision prevention processing. Is also applicable.

As shown in FIG. 3, the configuration of the control system is divided into an operation control device for each set of the multi-car type elevator system and a common overall control device so that the multi-car type elevator system is provided side by side. It is possible to realize a highly scalable control device that does not depend on the number.

The operation control processing in the overall control device 4 and the operation control device 5 will be described below with reference to FIGS. 4 to 6.

FIG. 4 is a flowchart of the program 10 for calculating the i-th set of loads. Load calculation program 1
0 is activated in the operation control device 5 for each set at a predetermined cycle (for example, 1 second).

In step 10-1, the number of calls held by the i-th group assigned to the i-th group from the overall control device 4 is counted and substituted into the variable hNum.

At step 10-2, the variable cNum for the destination floor number is initialized to 0, and at step 10-3, the variable cWgt for the number of people in the car is initialized to zero.

Steps 10-4 to 10-7
Is a loop process for the number N of cars in the i-th group.

In step 10-5, the destination floor number of the kth car is added to the variable cNum of the destination floor number.

In step 10-6, the number of people in the car of the kth car is added to the variable cWgt of the number of people in the car.

After the loop processing for the number k of cars has been completed in step 10-7, in step 10-8 the i-th
The load value Load [i] of the set is calculated.

Here, the load value Load [i] is calculated by Load [i] = (w1 * hNum + w2 * cNum + w3 * cWgt) / N (Equation 1) using the weighting factors w1, w2 and w3. As an example of the weighting factor, w1 = w2 =
2, w3 = 1 and so on. In Equation 1, the load value Load
[I] is a value standardized by the number N of cars in the group, and is therefore applicable even when the number of cars in each group is different.

The load value Load [i] of the i-th set calculated by the load calculation program 10 is written in a storage area which can be referred to by the overall control device 4.

FIG. 5 is a flowchart of the new hall call assignment set determination program 20. The allocation group determination program 20 is started in the overall control device 4 every time a new hall call is registered or at every cycle such as every 0.1 seconds.

In step 20-1, it is confirmed whether or not a new hall call is registered. If there is a hall call, the process proceeds to step 20-2 and thereafter.

In step 20-2, the values of the variable mLload for recording the minimum load value and the variable aGroup for recording the number of the allocation group are initialized. In the embodiment, 9999 is used as the initial value.

Steps 20-3 to 20-7
Is a loop process for the number M of adjoining elevator systems.

In step 20-4, the load value Load [i] of the i-th set calculated by the load calculation program 10 is detected.

In step 20-5, the load value Load [i] of the target i-th set is compared with the minimum load value mLload.

The load value Load [i] is the minimum value mLload.
If it is smaller, in step 20-6, the minimum value mL
Load [i] is substituted for oad, and the number i of the target i-th group is recorded in the variable aGroup that records the number of the allocation group.

At step 20-7, after the loop processing for the number of combined groups i is completed, the routine proceeds to step 20-8.

At step 20-8, the assigned group number aG
If the group is different from the initial value 9999, the number of a group to which a new hall call can be allocated is recorded in aGroup, so in step 20-9, the allocation of the target hall call is instructed to the aGroup group. .

By the processing of the allocation group determination program 20, the new hall call is allocated to a specific group. As a result, similarly to the reservation car display in the elevator group management control, it is possible to make a reservation guide for the door where the service car arrives by using a lamp or the like near the door of the allocation group.

FIG. 6 is a flowchart of the service car determination program 30 for a hall call. The service car determination program 30 determines a car to be actually serviced for the hall call allocated by the allocation group determination program 20, from a plurality of cars of the corresponding group. Service car decision program 30
Are activated in the operation control device 5 of each set every cycle such as every 0.1 seconds.

Steps 30-1 to 30-11
Is a loop process for the number N of cars in the group.

In step 30-2, it is confirmed whether or not there is a hall call on the arrival floor of the target car. If there is a hall call, the process proceeds to the following process.

At step 30-3, it is checked whether there is a passenger getting off from the target car on the target floor, and if there is, the process proceeds to step 30-9 to determine the service by the target car on the target floor. If there is no passenger alighting, the process proceeds to step 30-4.

In step 30-4, it is checked whether or not the target car is full. If the target car is full, the process proceeds to step 30-10 to determine non-service by the target car on the target floor.
If not full, go to step 30-5.

In step 30-5, it is checked whether or not the target floor is a "blocking stop" floor for preventing rear-end collision. If it is a blockage stop floor, the process proceeds to step 30-9, and the target car on the target floor is checked. Determine the service. If it is not the block stop floor, the process proceeds to step 30-6.

In step 30-6, it is checked whether or not the waiting time of the target floor is equal to or more than a predetermined value (for example, 20 seconds). If it is equal to or more than the predetermined value, the process proceeds to step 30-9, and the target car of the target floor. Determine the service by. If it is less than the predetermined value, the process proceeds to step 30-7.

In step 30-7, it is checked whether the interval between the target car and the subsequent car is less than or equal to a predetermined value (for example, the second floor), and if it is less than or equal to the predetermined value, the process proceeds to step 30-10.
Decide non-service by the target car on the target floor. If it is greater than or equal to the predetermined value, the process proceeds to step 30-8.

In step 30-8, it is checked whether the interval between the target car and the preceding car is less than or equal to a predetermined value (for example, the second floor). If it is less than the predetermined value, the process proceeds to step 30-9 and the target floor is reached. Determine the service according to the target basket. If it is greater than or equal to the predetermined value, the process proceeds to step 30-10, and non-service by the target car on the target floor is determined.

When the loop process for the number k of cars is completed in step 30-11, the process of one cycle of the service car determination program 30 is completed.

When the service by the target car on the target floor is determined in the above processing step 30-9, the arrival of the service car can be guided by blinking the lamp near the door of the target group.

By combining the load calculation program 10, the allocation group determination program 20, and the service car determination program 30 described above, it is possible to realize an efficient control device that evenly distributes the transportation load.

According to the embodiment described above, there are the following effects.

By making the operation control system separate into one overall control device and an operation control device for each set, a common system (hardware, software) can be used even when the number of sets of the elevator system is increased or decreased. ) Can be applied.

The conventional elevator group management control system is performed by determining the service car to the user by the hall call allocation group determination process in the overall control device and the service car determination process in the operation control device. With the same display as the reservation guidance method in, there is an effect that it is possible to guide the user.

Further, as a modification of the embodiment, when a multi-car type elevator system and an elevator are provided together,
The present invention can be applied.

When an elevator is installed side by side, the overall control unit 4 responds to the usage request from the hall call button 7 by
Determines and assigns which set of multiple sets of multi-car lift systems or which of the elevators responds. When assigned to any set of multi-car lift systems, it determines which of the multiple cars in the set will serve.
If the process is executed and the elevator is assigned to any of the units, it will be directly assigned to that unit.

As the load value used for allocation, the load value shown in the formula 1 may be directly used, or the calculated value of the formula 1 may be used by multiplying the calculated value of the formula 1 by taking into consideration the difference between the multicar type elevator system and the elevator. Good. As an example of the coefficient considering the difference between the multi-car type elevator system and the elevator, the case of the multi-car type elevator system is 3, and the case of the elevator is 1 grade.

According to the present embodiment, when viewed from the customer waiting in the hall, an interface for immediate reservation (lamp lighting) at the moment when the hall call button is pressed and arrival guidance (lamp blinking) upon arrival of the car. With the parts in common, it has the effect that a multi-car lift system and an elevator can be installed side by side.

As a modification of another embodiment, when the floor to which a hall call is generated is the same as the floor registered by the destination floor registration in the car when the allocation group for a new hall call is determined, the destination floor It is also possible to give priority to the assignment to the set including the registered car (not specifically shown).

According to the present embodiment, there is an effect that it is possible to suppress the state corresponding to the first-arrival state other than the assigned car in the normal elevator group management control.

[0081]

According to the present invention, there is an effect that a multi-car type elevator system can realize a highly expandable control device that does not depend on the number of added facilities.

Further, according to the present invention, there is an effect that it is possible to realize an efficient control device that evenly distributes a transportation load to a plurality of sets of multi-car type elevator systems provided side by side.

[Brief description of drawings]

FIG. 1 is a diagram showing an outline of a multi-car type elevator system.

FIG. 2 is a diagram showing a basic idea of the present invention.

FIG. 3 is a configuration diagram of a control system according to an embodiment of the present invention.

FIG. 4 is a load calculation flowchart of the i-th set.

FIG. 5 is a flowchart for determining a new hall call allocation set.

FIG. 6 is a flowchart for determining a service passenger car for a hall call.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Car, 2-1 ... Ascending-side hoistway, 2-2 ... Descending-side hoistway, 3-1 ... Machine room (upper part), 3-2 ... Machine room (lower part), 4 ... Overall control device, 5 ... operation control device, 6 ... car control device, 7 ... hall call button, 10 ... load calculation unit,
20 ... Allocation group determination unit, 30 ... Operation determination unit.

Claims (6)

[Claims] 1. A circulation type hoistway formed by an ascending traveling hoistway and a descending traveling hoistway, which are connected by an upper layer and a lower layer, and a plurality of cars traveling in the circulation type hoistway, A plurality of sets of elevator systems including an operation control device that controls the operation of a plurality of cars, a hall call device that receives a use request from a user of the plurality of sets of elevator systems, and a use request from the hall call device A control device for an elevator system, comprising: an overall control device that determines an elevator system that responds to the above from a plurality of sets and instructs the operation control device to assign a hall call. 2. The operation control device of each set according to claim 1, further comprising a transportation load calculating means for measuring an operation state of a corresponding elevator system and calculating a value indicating a transportation load. Elevator system controller. 3. The overall control device according to claim 2,
It is characterized by further comprising hall call assignment group determining means for receiving an operation status from the operation control devices of the respective groups, comparing transportation load values of the respective groups, and determining a group to which a new hall call is allocated. Elevator system controller. 4. The operation control device for each group according to claim 1, 2 or 3, wherein a car that responds to a hall call assigned by the overall control device is selected from among the elevator systems concerned. A control device for an elevator system, comprising a service car determining means for selecting. 5. An elevator system comprising a circulation type hoistway formed by an ascending traveling hoistway and a descending traveling hoistway connected by an upper layer and a lower layer, and a plurality of carriages traveling in the circulation type hoistway. Multiple sets, a hall call device that accepts usage requests from users shared by multiple sets of elevator systems, and an operation control device that determines the operation method of the elevator system in response to usage requests from the hall calling devices. In the control device for the elevator system, the operation control device determines a transport load calculating means for calculating a value indicating a transport load by measuring an operating state of each set of the elevator system, and a set for allocating a new hall call. Hall call allocation group determining means and a service car cage that selects a car that responds to the assigned hall call from the elevator system of the corresponding group Control device for elevator system characterized by comprising a means. 6. A multi-car equipped with a circulation type hoistway formed by an ascending traveling hoistway and a descending traveling hoistway that are connected by an upper layer and a lower layer, and a plurality of cars that travel in the circulation type hoistway. At least one elevator system and at least one elevator that drives a single car in the hoistway
Multi-car elevator system with a stand, hall call device that accepts usage requests from users shared by elevators, and multi-car elevator system and elevator operation method in response to usage requests from hall calling devices In a controller of an elevator system configured with an operation control device to be determined, the operation control device is a transportation load that calculates a value indicating a transportation load by measuring an operation state of the multicar type elevator system and the elevator. A set of a calculation means and a multi-car elevator system that allocates a new hall call, or a hall call assignment determination means that determines an elevator machine, and a car that responds to a hall call assigned to the multi-car elevator system Select from the appropriate set of multi-car elevator systems Control device for elevator system characterized by comprising a that service cab determining means.