JPS62235180A - Group controller for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Structure of the Invention] (Industrial Field of Application) The present invention relates to group management control of elevators that allows multiple elevator users to operate on multiple floors. Etc. Group when the group management control function fails! This invention relates to an elevator group management control device that improves the operating method of an elevator system.

[Prior Art] In recent years, when multiple elevators are installed in parallel, in order to improve the operating efficiency of the elevators and improve the service to elevator users, the elevators that respond to hall calls on each floor are equipped with a microcomputer. Currently, small-sized computers such as the above are used to allocate information rationally and quickly. That is, when a hall call occurs, the most suitable elevator to service the hall call is selected and assigned, and other elevators are not allowed to respond to the hall call.

Recently, in this type of group management control, there are models with a learning function, and when responding to each hall call in real time, the learning data such as the measurement of call registration data and the data measurement of the boarding and alighting load is used. It is now possible to ascertain the traffic volume between floors and the average time between arrivals at each pole.

Then, based on the measurement data, the measurement data is processed for each time period to understand the unique demand of each pill, determine the optimal machine when a hall call occurs, and set the time of dispatch, lunch time, clock-out time, etc. It directly responds to group management controls such as setting distributed standby zones during off-peak hours and setting the number of idle machines to save energy.

The group management control device usually performs the above-mentioned functions in a distributed manner on multiple small computers such as microcomputers), and is also a single controller for controlling a single elevator that is connected to the group management control device in a master/slave relationship. The equipment is also digitized and consists of small computers such as microcomputers, and high-speed information is transmitted through transmission lines such as serial transmission between computers between the group management control device and the individual control device. ing.

As described above, in elevator systems that perform group management control, the entire system is becoming more complex and digitalized, such as an increase in the proportion of software controlled by microcomputers and high-speed information transmission between computers.

Under these circumstances, the group management control system is transitioning from a centralized control system to a distributed control system, and even if one station, that is, an individual control system or the group management control main function part goes down, the control function part will not be transferred. The entire group management control system is configured to not go down.

However, in order to achieve the above functions, a transmission control system with high-speed and highly intelligent function support between each control device is essential. In this case, even in the above distributed control system, the entire group management control system may go down or be isolated from the group management control system.

In this case, each single control device ends up in a selective collective operation mode in which it responds to each hall call by itself.

(Problems to be Solved by the Invention) As described above, in group management control elevator systems, the group management control system is transitioning from a centralized control system to a distributed control system, and the control system for one station or the group management control main Even if a functional unit goes down, the control function unit is migrated and the entire group management control system does not go down.

In order to achieve the above functions, it is essential to have a transmission control system that supports high-speed, high-inch reso-end functions between each control device, but the transmission control system as a whole or
If a failure occurs in the transmission control of an individual control device, the entire group management control system will go down or be isolated from the group management control system even in the above-mentioned distributed control system, and each individual control device will If all hall calls are responded to individually, the operation efficiency of the group management control elevator will deteriorate significantly even if the system is a distributed control system. There was a drawback.

Therefore, an object of the present invention is to perform simple group management operation of group management control using each individual control system independently in the event that the group management control system goes down or is separated from the group management control system. Accordingly, it is an object of the present invention to provide a group management control device for an elevator that can minimize the effects of a failure in a group management control system.

[Configuration of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention is configured as follows. In other words, in an elevator group management control system that operates multiple elevators for multiple floors, performs predetermined evaluation calculations on generated hall calls, selects the most suitable elevator, and assigns a response. Each individual control unit that controls each individual elevator is equipped with a function that detects the status of the group management control function and separates it from under group management control in the event of a failure of the group management control system or inability to receive commands from the group management control system. After the separation, it is detected whether or not it is in a peak demand period, and when it is in a peak demand period, the operation is controlled in a predetermined manner according to the traffic demand pattern in that peak demand period, and the peak demand is It is configured with a simple group management control function that controls the operation of responding to hall calls when it is out of the time zone.

(Function) In such a configuration, when group management control becomes impossible, each individual control unit releases itself from group management control,
Activate your own simple group management function. As a result, it is detected whether or not it is currently in a peak demand period, and if it is within the peak demand period, the elevator is operated in an operation mode that matches the traffic demand pattern of the peak demand period.
If it is outside of peak demand hours, select/collective operation will be performed in response to hall calls.

This makes it possible to operate in accordance with traffic demand even when group management control is not possible, and to ensure transportation capacity by minimizing declines in transportation capacity, especially during peak traffic demand periods.

(Example) Hereinafter, an example of the present invention will be described using the drawings. FIG. 1 is a block diagram showing the configuration of a group management control system to which the present invention is applied.

In FIG. 1, 1 is a group management control section, 2-1. ~
2-N is a single control unit for controlling a single elevator provided on each elevator side, and the group management control unit 1 is connected to each single control unit 2-1. ~2-N via a high-speed transmission system 6 and a low-speed transmission system 7. These single control units 2
-1. 2-N and the group management control section 1 are constituted by a small control computer such as one or more microcomputers, and operate under the control of software. The high-speed transmission system 6 includes each individual control unit 2-1. ~2-N,
! : Between the group management control unit 1, that is, mainly the single control unit 2-1 in the machine room. It is a transmission control system that transmits information between control computers in ~2-N, and is connected by a high-speed, highly intelligent network. The control information necessary for group management control is transmitted to the group management control unit 1, each individual control unit 2-
1, to 2-H are exchanged at high speed. Low speed transmission system 7
is a transmission control system that mainly transmits information sent via the hoistway, such as the hall call button 3 of each hall and the monitoring panel 5 of the monitoring room, and is slower than the high-speed transmission system 6. ,
Due to its long distance, it is constructed using optical cables, etc., and includes a group management control section 1, an individual control section 2-1. ~2-N, and exchanges data.

When the group management control unit 1 is normal, the hall call button 3 is controlled by the group management control unit 1 via the hall call transmission control unit and low-speed transmission system 7 that transmit hall call information etc. 3 is pressed, the hall call f-t is closed and the entry run is set, and at the same time, the single control unit 2-1. Based on the information from ~2-H, determine the optimal machine number and issue a control command to that single machine. Then, the single control unit 2-1, which received the control command, ~
2-N uses the control command as hall call information to carry out individual control, that is, to respond to calls assigned to its own machine, and to perform control on a car-by-machine basis such as passing through the hall, opening and closing doors, etc.

FIG. 3 shows a group management control section 1 and a single control section 2-1 of the system according to the present invention. 2-2 is a software system configuration showing an embodiment of the N7 software system. The software configuration is such that tasks 9 to 12 of the single control function task, group management control main function task, group management control subfunction task, and transmission control task are managed by the real-time O88, which is an operating system. Each task 9 to 12 depending on the scheduler
is activated or held. Among these tasks 9 to 12, the unit control function task 9 includes the unit control unit 2-1. It is a core function in ~2-H,
This task is for operating each of the individual control units 2-1° to 2-N, and is given a high priority.

The group management control main function task 10 is the central function of the group management control unit 1, and when a hall call occurs, each individual control unit 2-1. ~2-H in order, and each single control unit 2-1. The group management control subfunction tasks 11 distributed to 2-H are activated, and each individual control unit 2-1.
~2-H By collecting the information data of the evaluation value for each car determined by the group management control sub-function task 11 distributed in 2-H, and performing a comparison calculation, the optimum car that can respond the fastest to the floor where the hall call occurs is determined. is determined, and a control command is given to the corresponding car, and the hall call button 3 is also controlled.

The group management control subfunction task 11 is a function that processes information units for each machine in each single control unit, and is a group management main function response that is activated when the group management control system is normal, as shown in Figure 5. It is broadly divided into a control function section and a group management failure mode control function section that operates when the group management control system is abnormal or separated from the group management control system.

The group management main function response control section processes information under the control of the group management main function task 10.

In other words, the configuration is such that a computer with the group management control main function manages the startup and termination of tasks via the high-speed transmission system 6, and is executed on a machine-by-machine basis by commands from the group management control main function station, which is a mask. perform distributed processing,
The configuration is such that data is transmitted to the main function station at the time the above processing is completed. The transmission control task 12 controls the transmission and reception of data in the high-speed transmission system 6 and the activation and termination of the group management control subfunction task 11.

FIG. 4 is an example of a diagram showing the system configuration of the high-speed transmission system 6 of FIG. 2. Transmission control is performed using the microprocessor 13, but for example, as a part that controls the data link layer of the LAN network model layer proposed by ISO (International Organization for Standardization),
It uses a data link controller 14 and a media access controller 15 that are configured by software.
The configuration allows for highly intelligent data transmission. The configuration is such that the ratio of transmission control software managed by the microprocessor 13 to high-speed transmission control is reduced. For example, the data link controller 14, which is a controller that realizes the above-mentioned highly intelligent transmission control, is manufactured by
) company's LSI 182586, and also Intel's 182586 as a media access controller.
82501 and the like have been put into practical use, and by using this, high-speed transmission functions such as 10M pits/second can be performed relatively easily with a reduced support ratio of the microprocessor. Note that 16 is a system bus, 17 is a control line, and 18 is a serial transmission system.

The group management control system constitutes a distributed control system via the high-speed transmission system 6, and when the high-speed transmission system 6 goes down or a specific station of the high-speed transmission system 6 fails, each All units or a specific unit is isolated from the group management control system, resulting in a failure mode of the group management control system.

Each single control unit 2-1. -2-N have a failure mode control function as shown in FIG. 2 in the group management sub-function task 11.

This group management failure mode control function is modularized as shown in FIG.
Each function module includes a demand detection control unit M2 that searches for peak demand, and simple control function units M3 for dispatch time, lunch time, and leaving time. ~M5 Furthermore, it is comprised of a hall call response control function section M6 for establishing the select-tape-collect operation function.

The hall call response control function unit M6 has a function of servicing the own elevator in response to a generated hall call, and the dispatch time period simple control function unit M3 has a function of servicing a standard floor with priority, for example, so that the elevator reaches the standard floor. Then, the function is to keep the door open for a certain period of time until it is full, and to transport as many passengers as possible on the standard floor. This function is designed to provide priority services to floors. Also,
The clock-out time zone simple control function unit M5 is a function that takes into consideration the flow of people when clocking out.For example, it shortens the door opening time after landing on the standard floor, shortens the waiting time on the standard floor, and allows people to move to other floors. This function is designed to give priority to services for those leaving, such as speeding up responses.

The demand detection control unit M2 is dispatched at the current time, and it is lunch time.

It detects whether it is the demand time for leaving work, etc. It reads the system timer under O8 management, obtains data on the current day of the week, and based on this, determines what kind of demand is. This is used to know this, inform the group management failure mode control function section M2, and cause the control function section M1 to execute the function of the optimum function section among M3 to M6.

The group management control failure mode control function section M1 is activated upon detection of a system failure of the group management control system or a state of separation from the group management control system.

The operation of the present device having such a configuration will be specifically explained using an example in which the simple control function is executed during dispatch time.

As described above, the group management control section 1 and each individual control section 2-1. ~
If the high-speed transmission system 6 connecting between 2 and 2-N goes down, the group management control system cannot be configured. Therefore, in each single control unit 2-1° to x-N, the high-speed transmission system 6
When transmission and reception with the group management control section 1 via the group management control section 1 is impossible for a certain period of time or more, the group management control failure mode control function section M1 of the group management subfunction task 11 is executed and the system enters a failure mode.

Then, each single control unit 2-1. In steps 2-H to 2-H, a simple group management control mode is established in which control from the group management control main function unit, that is, the group management control unit 1, is separated and executed independently. That is, as shown in FIG. 5, the group management control main function response control function includes information such as operation information for each individual control unit necessary for execution of group management control by the group management control main function, and execution of evaluation calculation operations. In group management subfunction task 11, which controls the group management control failure mode control function, the group management main function response control function is brought to a final state, and the group management failure mode control function, which has been in a final state, is activated.

As explained in FIG. 2, the group management failure mode control function unit M1 includes a demand detection control unit M2, simple control function units (MJ to M5) for dispatch time, lunch time, and clock-out time, and one output. - Consists of a hall call response control function section M6 for establishing the select tape collect operation function.

When the group management failure mode control function unit M1 is executed, the hall call response control function unit M3 is activated unconditionally in response to the demand, and 1 car selective collection! While driving, the demand detection control function unit M2 is activated to search for peak demand. FIG. 7 shows an operational flowchart of the peak demand search, and FIG. 8 shows a storage table for the start/end times of each peak function operation. As shown in FIG.
Get time data. Each peak function operation start/end time storage table in FIG. It is an information table that stores information, and 5TART
The start time FINISH represents the end time. F
AST and 5LOW indicate the variation in commands depending on each date, and the case where the earliest time command was received in the past is FA.
ST, and conversely, 5LOW corresponds to the case where the latest time command is received. Normally, the time is between FAST and 5LOW, and updates are performed only when the range is exceeded. F'AS
T.J.

Assuming that 5LOW1 is the dispatch time, for example, 5TART FAST 1 7: 45SLOW
1 7: 55 FINISHFAST 1 8: 55SLOW 1
The data structure will be like 9:05.

For example, the current data of the system timer is Tuesday 8:00
If it is 5, it will be determined that the peak demand is demand during dispatch time, so in this case,
In order to move from the hall call response control function to the execution of the dispatch time period simple operation, the dispatch time period simple control function unit M3 is activated, and if the group management control system system down state continues, from the current time to 9:00. During this time, the operation of the dispatch time zone simple control function section is performed, and thereafter the function is returned to the hall call response control function.

FIG. 6 shows an embodiment of the dispatch time zone simple control function section. As shown in the figure, after departing from the reference floor using the single control device alone, a dummy call is generated on the reference floor at the final call reversal and the reference floor is pulled back (reference floor pullback control function).

Then, after arriving at the standard floor by decelerating in the ascending direction or in no direction, the door is opened regardless of the presence or absence of a real call (actual call), and the demand passenger from the standard floor is boarded (standard floor door open standby control function).

At this time, in order to maintain efficient transportation capacity, the door-opening time is extended and door-opening restraint is performed to allow more passengers to board (standard floor door-opening restraint standby control function). In addition, even if the train arrives at the standard floor in the descending direction, goes to the basement floor, and then reverses in the ascending direction, a forced stop will be performed at the standard floor regardless of whether there is a real call, thereby reinforcing demand from the standard floor. (Reference floor forced stop control function)

As mentioned above, during the dispatch period, by maximizing the peak operation that can be controlled by the single control unit and strengthening the standard floor transportation capacity, compared to the case of only one car select-collect operation. It is possible to obtain sufficient standard floor transportation capacity, and it is possible to reduce the decrease in transportation capacity due to group management control system failure.

In the above, we have taken the simple control function during the dispatch time as an example, but the forced stoppage by the cafeteria floor during the lunch time 2
Door-open standby, two-door open restriction, etc., shortening of the distributed standby judgment time control value in the clock-out period, change of standby floor, etc. can be handled in the same way.

Moreover, peak functions not only in the above-mentioned time period but also in other time periods can be handled in the same manner.

As described in detail above, the present invention provides a group management control system for elevators in which a plurality of elevators are put into service for a plurality of service floors, and an elevator that serves a common no-haul call is selected and responded to. When a management control system failure occurs or the group management system is unable to give commands, each individual control unit independently detects peak demand, and if it is a peak demand period, the control unit detects the peak demand during a predetermined time period based on that time period. The system is designed to execute a driving mode that matches the traffic demand pattern. Therefore, in addition to single-car select-collect operation, it is possible to execute group management simple control operations corresponding to each peak function, and to respond to peak demands that are predicted to cause great damage due to system failure of the group management control system. This makes it possible to minimize the decline in transportation capacity, and to enable highly intelligent responses to each individual control unit, thereby improving system reliability.

[Effects of the Invention] As detailed above, according to the present invention, even when group management control becomes impossible, it is possible to service transport capacity for peak demand with minimal decline in the group management control system. It is possible to provide a group management control device for elevators that is possible.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an elevator system according to the present invention. FIG. 2 is a functional block diagram showing the module system configuration of the group management failure mode function used in the device according to the present invention. FIG. A software system configuration diagram of each control unit, FIG. 4 is a block diagram showing the hardware system configuration of the high-speed transmission system according to the present invention, and FIGS. 5 and 6 are a module system of the group management control sub-function task according to the present invention. FIG. 7 is a flowchart showing the operation of the demand detection control function section according to the present invention, and FIG. 8 is a table configuration diagram showing timer management information used for demand detection control. DESCRIPTION OF SYMBOLS 1... Group management control unit, 2-1 to 2-N... Single control unit, 3... Hall call button, 4... Hall call transmission control unit, 5... Monitoring panel, 6...・High-speed transmission system, 7...
Low-speed transmission system, 8... Real-time O8, 9... Single control function task, 10... Group management control main function task, 11... Group management control sub-function task, 12...
Transmission control task, 13...Micro@processor, 1
4...7'-Talink controller, 15... Media access controller, 16... System bus, 17... Control line, 18... Serial transmission system. Applicant's Representative Patent Attorney Takehiko Suzue Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] In an elevator group management control system that operates multiple elevators for multiple floors, performs predetermined evaluation calculations on generated hall calls, selects the most suitable elevator, and assigns a response. Each individual control unit that controls each individual elevator has a function to detect the state of the group management control function and separate it from under group management control in the event of a failure of the group management control system or when commands from the group management control system cannot be received. After the separation, it is detected whether or not the vehicle is in a peak demand period, and if it is in a peak demand period, the operation is controlled in accordance with the predetermined traffic demand pattern in that peak demand period. A group management control device for an elevator, characterized in that it has a simple group management control function that operates to respond to hall calls when the elevator is out of service.