JPS63218480A - 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] [Purpose of the Invention (Industrial Application Field) The present invention relates to group management control of elevators in which a plurality of elevators are put into service on a plurality of floors, and particularly relates to a transmission control system. More detailed management system! The present invention relates to an elevator group management control device that decentralizes the processing of a part of the 2IO function.

(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, an evaluation calculation is performed for each elevator number according to the car status of each elevator, and as a result, the one with the best evaluation is selected and assigned as the most suitable elevator to service the hall call. , the other elevators are not allowed to respond to the hall call.

Recently, in this type of group management control, models with a learning function have been introduced, and floor control based on learning data such as the measurement of car call registration data when responding to each hall call in real time and the data measurement of boarding and alighting loads has been introduced. Traffic volume can now be determined by determining the average time between arrivals at each hole.

Then, based on the above measurement data, the measurement data is processed for each time period, the demand specific to each building is grasped, and the optimal @ machine when a hall call occurs is based on this and the car status of each car. It is directly applied to group management control, such as determining dispatch time, lunch time, clock-out time, etc., setting dispersed standby zones during off-peak hours, and setting the number of idle machines to save energy.

The group control device normally performs the above-mentioned functions in a distributed manner using multiple small computers, and the single control device for controlling a single elevator, which is connected to the group control device through master and slave units, is also a microcomputer, etc. It is composed of small computers and is digitized, and high-speed information is transmitted through transmission lines such as serial transmission between computers between the group management device and the unit control device.

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

Under such circumstances, conventionally, the group management device was a centralized control system, and basic data was transmitted between each individual control device, and based on that basic data, the group management control device Data processing was performed on a unit-by-machine basis.

Therefore, as the size of the group control elevator system increases, that is, the floors and the number of elevators, the load on the computer in the group control device increases9, and as the demand for hall calls increases, the processing capacity will be affected. For example, in a system with a reservation display, the processing time from the generation of a hall call to the lighting of the warning light of the optimal car changes depending on the number of cars on the nine floors, which places a large load on the computer of the group control device and reduces the overall system efficiency. This will worsen the load balance of the computer. Furthermore, when the system goes down, the group management function deteriorates all at once, resulting in poor efficiency for the entire system.

Due to the above needs, distributed control of the control functions of elevator systems having multi-stations is being promoted for the purpose of equalizing the load balance of control computers (the above-mentioned computers).

In the case of such a system, each individual control computer can perform the processing of the group management auxiliary control system that performs unit processing for each individual elevator and the group management control system for the entire system. This system does not have a so-called group management control system dedicated computer in which one of the single control computers is responsible for group management control for the entire system. Therefore, in this system, any one station (a station corresponds to a single control computer for each machine) out of the plurality of control computer systems of the overall system that are connected to each other via transmission lines manages the group management of the entire system. The main control function of the control system is shared, and the entire single control computer, including the computer that is responsible for this main control function, is responsible for the sub-control function for each elevator unit, for example, the own control function for the generated hall call. Then, the functions of calculating the evaluation value based on the current situation and providing it to the main control function section will be shared.

However, as a matter of course, the separation of group management main control in units of the overall system is always performed at all stations that are subject to group control, that is, stations that are included in the group control subject as stations within the group at that time.
The station must operate normally as the main control line, and even if any elevator is disconnected during on-site adjustment or elevator maintenance/inspection, it will instantly and automatically detect the disconnected condition. If the control computer of the station that became
Immediate group management main control to other stations] tl
Automatic migration of capabilities is necessary. In addition, even if it is not separated, the control computer that plays the main group management function causes a computer WDT trip (WDT; watchdog timer: a timer that operates to detect an abnormality when a specified operation is not performed for a specified period of time), and the power is cut off.

In order to maintain the separate functions of the entire group management control system even in the event of an individual abnormality such as a transmission function abnormality, all other stations monitor the abnormality of the main control function station online and resume the group management main control function. The function of transferring is essential for each station's control computer.

(Problem to be Solved by the Invention) In this way, in group management control, the control computers provided for each individual elevator that control the control of each individual elevator are connected to each other by transmission lines, and each control computer has group management control. In addition to having the function of a master, one of the control computers is made to function as a group management master, and performs group control by giving and receiving information to and from each control computer and giving commands necessary for group management.

However, in this case, if the control computer responsible for the group management master function malfunctions or is separated from the group, it is necessary to monitor the status of each other so that another control computer can take over that function.

Conventionally, in order to monitor this, it is necessary to provide signals for monitoring signals such as WDT trip, power cut, disconnection of nine transmission function groups, etc., and connect them to each other.

Therefore, if there are a large number of elevators in a group, installing such special signal lines is difficult, and checking each of these various monitoring items across a large number of elevators requires processing time. , which imposes constraints on the original control processing, leading to an increase in the load on the control computer.

Furthermore, if there are many check items for monitoring, there is a conflict with other processes, so the frequency of checks becomes low, causing a delay in the automatic transfer of the group control master function to another control computer when an abnormality occurs. It turns out. Therefore, the reliability of the monitoring function deteriorates, and there are many problems that require improvement, such as an increase in equipment costs related to the monitoring function. Furthermore, even if the group management master function is to be migrated, it is necessary to manage which function to migrate to.

Therefore, the purpose of this invention is to eliminate the need for special signal line installation for monitoring, and to check WDT trip and power cut as one type of check item.

It is possible to perform monitoring such as disconnection of 9 groups of transmission functions, and the processing time for monitoring can be greatly reduced. In the event of an abnormality, the group control master function can be automatically transferred to another control computer immediately, and equipment costs can be reduced. An object of the present invention is to provide an elevator group management and control device that can reduce the amount of noise and improve reliability and processing efficiency for monitoring.

[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, multiple elevators are put into service for multiple floors, and evaluation calculations are performed to determine elevator operation based on the status information of each elevator in response to hall calls that occur, and each elevator is evaluated. In an elevator group management control system that controls the operation in the best manner according to the situation, such as having the most suitable one respond to the above-mentioned hall calls, a single unit is provided for each elevator for various controls of that individual elevator. The control units are connected via a high-speed data transmission system, and each single control unit has a group management control subfunction that performs its own evaluation calculation for group management control, and transmits the evaluation calculation results to other single control units. When designated as the main group management control unit, it determines the optimal elevator based on the evaluation calculation results obtained from each individual control unit, and controls its assignment in the best form that suits the situation. The group management control main function performs control and commands for the group management control, and diagnoses its own functions at predetermined time intervals, and when it is in a situation where it can operate as a group management control master, it generates master permission information and sends the above information to each individual control unit. The status monitor function that is transmitted via the transmission system and the master permission information of the single control unit designated by the group management control master are checked at longer time intervals than the status monitor handle, and the master permission information is converted into disapproval information. A group management control master supervisor who monitors abnormalities in the single control unit that has been designated as a group management control master. ! When an abnormality is detected in a single control unit specified by the group management control master, the group management control master selects another single control unit that has issued master permission information and issues commands from the group management control master. and a decision function.

(Function) In the elevator group management control device having such a configuration, the single control unit provided for each elevator performs the evaluation calculation for group management control using the group management control subfunction. The results are then transmitted to other single controllers via a high-speed data transmission system.

The single control unit designated as the main group management control executes the main group management control function, and determines the optimal elevator based on the evaluation calculation results obtained from each single control unit, and issues appropriate instructions for its assignment according to the situation. Provides control and commands to control operations in the best possible manner. In addition, each individual controller executes a status monitor function at predetermined time intervals, diagnoses its own functions, and generates master permission information when it can operate as a group management control master. The master permission information of the individual control unit that has been designated as the group management control master is checked at longer time intervals than the status monitor function by transmitting it via the high-speed transmission system and executing the group management control master monitoring function. By rewriting the master permission information to non-permission information, abnormality monitoring of the single control unit designated as the group management control master is performed. In other words, this makes it possible to monitor abnormalities on the other side by sending and receiving only a single piece of monitoring information called master permission information, and while this master permission information can be updated, each heavy body control unit can assume that this single control unit is normal. It is now possible to judge. In this way, the group management control master is monitored, but if an abnormality is detected in the single control unit designated by the group management control master by executing the group management control master monitoring function, the detected single control unit will Another unit control unit that executes the control master determination function and outputs master permission information is selected, and the command of the group management control master is given to the selected unit control unit. Then, the single control unit is made to function as a group management control master.

In this way, each single control unit sequentially self-diagnoses whether it is in a state where it can function as a group management control master, and when it is in a state where it can function, it sends master permission information to each single control unit, so that each single control unit always By having the robots understand their own status, it is possible to minimize the transmission of abnormality monitoring information, significantly shortening the transmission time and execution of monitoring, and to immediately perform group management when an abnormality occurs. The function of the control master can be transferred to another single control unit without any abnormality, resulting in high reliability and high processing efficiency for monitoring.The number of transmitted information is kept to a minimum, so the monitoring function can be transferred to another unit without any abnormality. It is possible to provide an elevator group management control device that can also reduce equipment costs.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a system model for transmitting control master monitor data when determining a group management control master for overall system management in a group management control system according to the present invention.

Independent departments 2-1 to 2-N1 were established for the control of each elevator. :#, each has its own control value monitor (that is, a function to check whether it is in a state where it can serve as a group management control master), and the logical transmission systems 1-1 to 1 are connected to each other. -2 to enable communication. Each single control unit 2-1 to 2
-N is composed of control computers, each of which monitors the control state of its own station and determines the control state of its own station.

Then, through a logical transmission system connecting each control unit, the control state information of the own station is used as control master monitor data to set a simultaneous broadcast communication mode to other stations, that is, designate all other stations as receiving stations. Transmission is performed in a mode that allows all stations to receive the transmitted data. Such work is carried out periodically at regular intervals. Although the physical transmission path is one system, multiple boats are opened and communication between the boats is performed in parallel, thereby increasing the number of logical communication paths and allowing one-on-one communication with each target party. . The control master transmission system 1-1 is one of the logical communication paths in such port-to-port communication, and is a control master transmission system implemented by the single control unit 2-1. The unit control units 2-2 to 2-N are caused to receive the data.

Similarly, each of the individual control units 2-2 to 2-N has a control master transmission system. 1-2 to 1-N are established, and other stations receive the data using these channels. As a result, the transmission system enables each control unit to grasp control status information of its own station and all other stations. Therefore, in each control section,
By executing control master determination logic processing configured using the same algorithm, each station can independently detect the functional status of the group management control master of the entire system, and perform master control/slave control management tasks within its own station control device. A distributed control system group management υ control system is established, which consists of a group management control main function section that performs centralized control as an entire system upon activation, and sub-control function sections for each machine.

In this way, the single control unit of each machine is treated as each station, and these stations are connected by a logical transmission system, and each station can control its own control state, that is,
Status information indicating whether or not it can become a group management control master is given to each station in the simultaneous broadcast communication mode and stored in a table.

Therefore, each station can always know the control status of other stations. Then, each station checks the control status information corresponding to the station that is the group management control master, and changes the stored data in the table to disallowed status information, and by the next check, the control master is abnormal. If this occurs, the status information in the table will be disallowed data, so in this case, according to the priority order of the machine that is predetermined for the entire system, look at the control status data of the machine with the next highest priority and see if it is permitted. When the data indicates that, the single control unit at the station of that number is determined to be the group management control master. The determined unit control unit is given a command to that effect and is made to function as a master, and the other unit control units are notified that the unit control unit has become the master and are placed in control.

In this device, there is only one transmission line, but it is configured to enable high-speed transmission, and moreover, as a transmission system, multiple logical ports are opened one-to-one for each party with whom you wish to communicate, so that in effect, It allows multiple transmission systems to be used in parallel and almost simultaneously, and since only the above status information is given to other stations, it simplifies the transmission path and allows stations to communicate with each other in real time. This makes it possible to simplify status checks.

In addition, each station independently checks itself to monitor whether it can operate as a group control master, and if possible, informs other stations so that each station can know the status of other stations. By doing this, when the station that executed the status check of the group management control master learns of an abnormality in the master, it can immediately have another single control unit take over the master function.

Hereinafter, details of one embodiment of the present invention will be explained using the drawings. FIG. 2 is a block diagram showing the configuration of a group management control system to which the present invention is applied.

In FIG. 2, single control unit 2-1. ~2-N is composed of a small computational filter such as one or more microcomputers, and operates under the control of software.

The high-speed transmission system 6 includes a single control unit 2-1. It is a transmission control system that performs transmission between . Control information essential for group management control is transmitted to each individual control unit 2-1. ~2-N exchange is occurring at high speed.

The low-speed transmission system 7 is a transmission control system that mainly transmits information sent via the hoistway, such as the hall call buttons 3 of each hall and the monitoring panel 5 of the monitoring room, and is more efficient than the high-speed transmission system 6. Due to its low speed and long distance, it is constructed using an optical cable, etc., and is connected to the single control unit 2 to exchange data.

The group management control function section controls the hall call button 3 via the low-speed transmission system 7, and when the hall call button 3 is pressed, the hall call gate is closed and the registration lamp is set, and the signal is sent via the high-speed transmission system 6. Based on the received information from the unit control unit 2, the optimum machine is determined, and a control command for hall call assignment is issued to the unit control unit of the optimum machine. The unit control unit that receives this control command performs unit control using the control command as hall call information.

FIG. 3 is a software system configuration diagram showing an embodiment of the software system of the single control unit according to the present invention. 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 OS8, which is an operating system. Each task9 by scheduler
~12 are activated or held.

Among these tasks, the unit control function task 9 includes the unit control unit 2-1. This is the core function for operating these in ~2-N, and the task priority is set high.

Single control unit 2-1. ~2-N also includes group management control subfunction task 11. Each task of the transmission control caster 12 is added. The group management control sub-function task 11 is a control function process for each own machine, such as a function to calculate an evaluation value corresponding to the time required for the own elevator to respond to a generated hall call based on a predetermined evaluation calculation formula. .

The group management control main function task 10 is the central function of the group management control function, and when a hall call occurs, each individual control unit 2-1. ~2-N in order, and each unit control unit 2-1. 2-N and activates the group management control subfunction tasks 11 distributed to each unit control unit 2-1.
~2-N By collecting the information data of the evaluation value for each customer found by the group management control sub-function task 11 and calculating the comparison 81i, it is possible to respond the fastest to the floor where the hall call occurs. The optimum car number is determined, a control command is given to the corresponding car number, and the hall call button 3 is controlled.

The group management control sub-function task 11 is a function for processing information for each machine of the group management control function, and processes the information under the control of the group management control main function task 10.

That is, the task is activated via the high-speed transmission system 6 by a computer having the group management control main function.

The configuration is such that the group management control main function layer, which is the master, specifies the local station/other station port (PORT) number for each machine station, and sends a transmission request via each local station boat number. The configuration is such that distributed processing is performed on a unit-by-machine basis according to instructions, and data is transmitted to the main functional layer upon completion of the processing. Transmission control task 1
2 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;
Manage multiple multiplexed logical communication paths and
The configuration is such that the sending/receiving queues are controlled for each send/receive queue.

FIG. 4 is a block diagram showing an example of the system configuration of the high-speed transmission system 6 of FIG. 1. Transmission control is microprocessor 1
However, for example, the part that controls the data link layer of the LAN network model layer proposed by 180 (International Standardization Center) is a data link controller 14 and a media access controller configured with hardware. -Uses the controller 15, and has a configuration that allows data transmission to be performed in a highly intelligent manner. A configuration is adopted in which the proportion of transmission control software managed by the microprocessor 13 is reduced for high-speed transmission control.

For example, the data link controller 14, which is a controller that realizes the above-mentioned highly intelligent transmission control, is an LSI 182586 manufactured by Intel Corporation.
However, media access controllers such as Intel's 182501 have also been put into practical use.
By using this, high-speed transmission functions such as 10 Mbit/sec can be performed relatively easily with a reduced support ratio of the microprocessor. Furthermore, 16 is the system bus.

17 is an FSIII line, and 18 is a serial transmission system.

Next, the control operation of the transmission control system that plays the role of inter-task communication between each control device will be explained based on FIGS. 5 to 10.

FIG. 5 is an example of a block diagram showing the system configuration of the theoretical communication path of the high-speed transmission system 6 in FIG. 2, and FIG. It is an example of a system diagram showing connections.

FIG. 7 is a diagram showing the control operation of the transmission control system shown in FIGS. 5 and 6, and FIG.

FIG. 9 is a flowchart showing an example of specific operations of the primary station function and secondary station-like function in inter-task communication of each user task.

Figure 10 is an example of a table managed by the transmission control software, and is a table in which management is separated by boat (each boat is numbered and distinguished in advance), which is a theoretical communication path. The structure is as follows.

As shown in the system configuration block diagram in Figure 5, N logical communication paths are set up on a single physical transmission path, and tasks at each station assign votes to each logical communication path. PORT and communicates with other tasks via that PORT. Therefore, although there is one physical communication path connecting each station, each station can perform parallel operations of N tasks for the number of boats, that is, if there are N boats. Further, at this time, the operation of the transmission/reception queue of each task is managed separately and independently by the transmission control task using the transmission control management table shown in FIG. 10.

The seventh item shows the sending and receiving operations from each task.
In the diagram, the transmission queues requested by the local processing function, which is the primary station function of each task, are formed in the transmission control management table for each boat number.

Similarly, in the remote processing function, which is a secondary function,
The reception queues requested for reception are each controlled by a transmission control management table to form a reception queue. Transmission output to the physical transmission path or reception input to the physical transmission path are temporarily buffered in the form of output queues and input queues, respectively. This buffering is managed by the transmission control controller, and transmission/reception to/from the common physical transmission path is performed without the intervention of the CPU.

Here, an example of the inter-task communication operation will be specifically explained based on FIGS. 8 and 9.

First, in the primary station function task that makes a transmission request, the boat P makes a transmission request to the transmission control task.
Establishment of ORT. Next, the port number 5PORT for the own station and DPORT, which is the input port for the partner station, are specified. Here, the sixth
The primary station processing of station 19a in the figure corresponds to the operation shown in FIG. 8, the own station boat number corresponds to transmitting boat 20a, and the opposite station station boat number corresponds to receiving boat 21b.

That is, when the next station function task is executed, first the own station boat number 5 PORT and the other station boat number DP are
After specifying the ORT (Sl), a transmission request is made to the transmission control task for the local transmission boat 20a (S2). Then, when a transmission request is made, in the transmission control task,
It is placed under the control of the transmission control management table of the corresponding local port number on the table in FIG. 10, and is queued in the transmission queue of the corresponding local port number in FIG. The transmission queue then performs transmission output processing, forms a transmission packet, queues it in the output queue, and puts it under the control of the transmission controller. As a result, the primary station processing task enters the state of waiting for the completion status from the transmission control task (S3), this task is temporarily interrupted, and control is returned to the OS scheduler, where another task that wants to make a transmission request CPL if there is
I's proprietary status is transferred to that computer.

When the transmission control controller whose management was transferred through the queuing described above transmits the above transmission packet onto the common physical transmission path, and the completion status is set by the transmission control task, the task is restarted again and the status check is performed. After that (84), the station enters a waiting state for receiving return data from the partner station (S5). Furthermore, when the transmission packet is output onto the common physical transmission path, the receiving operation is executed at the partner station (S6
).

FIG. 9 shows secondary layer processing corresponding to the primary station processing in FIG.
Compatible with secondary layer processing.

First of all, the partner station station boat number designation value DP
A logical communication path is connected at the reception boat 21b, which is a reception boat corresponding to the ORT.

The operation of transmit packets is shown in FIG. 7, where when a transmit packet is received over a common physical transmission path, it is queued in an input queue. Then, the current station/destination station boat number is read through reception input processing by the transmission control task. It is queued in the reception queue with the value of DPORT, which is the corresponding boat number, and is connected to the second layer processing.

That is, in the second layer processing, the state waits for a message from the transmission control task (ST1), and when a message is received, it is activated by receiving the message, and the numbers of the own boat and the other party's boat are read (ST2>, and then the message data is After decoding and applied processing (ST
3) DPOR, which is the partner station boat number when inputting data
Let T be the port number of the own station, and specify the port number of the own station at the time of data input as the boat number of the other station (5T4), and then send a packet to the transmission control task to request return transmission (ST5). This transmission flow corresponds to the return transmission from the receiving boat PORT21b to the transmitting boat PORT20a in FIG. 6, and the boat number received at the secondary layer sends a reply to the boat number sent from the primary station. It represents that.

Then, the completion status is sent to the transmission control task (ST6), and when the reply transmission status is returned from the transmission control task, the task is restarted.
A status check is performed (ST7), and the secondary layer processing is completed.

On the other hand, in the primary station processing, in the secondary layer processing,
A return transmission packet is output by the output queue of the secondary layer station 19b, received by the next station 19a, and queued in the input queue. The boat number specifies the transmission port 20a of the next station 19a, and since reply transmission is performed, the local station PORT is input to the boat corresponding to the transmission port 20a, and the primary station task is in the waiting state. Therefore, the primary station processing task that is in the state of receiving return data from the partner station for the own boat 20a is restarted. Then, after inputting the received data and processing the received data, the next station operation is completed. .

As described above, the primary station processing between each control device is performed by specifying the own station/other station boat number when transmitting data from the transmitting side using the boat, which is a logical communication path, between each control device. and secondary layer processing will be related,
As a result, logical communication paths are connected, and communication between tasks is controlled by the logical communication path.Although there is only one physical transmission path, by setting multiple logical communication paths, the above-mentioned Coupled with the possibility of high-speed transmission, there are a large number of tasks such as those shown in Figures 8 and 9.
Even if it works, it will be possible to execute multiple real-time inter-task communications in parallel, regardless of tasks on other boats. That is, unlike the case where there is a single boat, there is no queue, and communication can be performed in parallel, allowing high-speed communication.

Next, an explanation will be given of the automatic setting operation of the main function of the group management subsection which performs the overall system management according to the present invention using the transmission control system described above.

FIG. 11 is a flowchart showing an example of the self-station group management control status monitor data transmission operation according to the present invention, FIG. 12 is a flowchart showing an example of the determination operation of the group management control main function section according to the present invention, and FIG. 13 is a flowchart of the operation showing details of the algorithm of the group management control main function determination logic in FIG. 12. FIG.

Further, FIG. 14 shows a group management control master monitor table that stores group management control status monitor data information for each individual control unit according to the present invention.

Further, FIG. 15 shows a master priority data table for setting the priority of the group management control master in the overall system according to the present invention, and this table is fixedly provided in each individual control unit. And the same data is set.

The group management control main function is specified as follows.

In each of the individual control units 2-1 to 2-N, as shown in FIG. 12, a group that monitors the control status of its own station is executed at fixed time intervals, and centrally manages the entire system from the control status. A determination is made as to whether or not it can become a management control master (825), and group management control maxi permission/disapproval data is sent to the data area of the own machine of the master monitor shown in FIG. 14 according to the above determination result. Set (826
). In other words, if the own station is functioning normally, data indicating permission will be set. Then, at the same time as setting it in the master monitor table of the own station, as shown in FIG. The station transmits its own control state monitor data (821 and 822 in FIG. 11). This transmission is executed in the simultaneous broadcast communication mode, in which the own station control status monitor data is transmitted to all other units, and after receiving the completion status from the transmission control task of all other units (S23), it is checked. to confirm data exchange (824).

As a result, the control state monitor data is set in the data area of the own machine in the master monitor table of all other machines, and its reception is confirmed.

Taking the No. 1 machine as an example, this data set directly stores the control status monitor information of the own machine in the No. 1 revised monitor data storage area for the master monitor table in the control []B position of the No. 1 machine. For the master monitor table areas No. 2 to No. N, which are other archery halls,
This is carried out by setting the same monitor data in the No. 1 machine monitor data storage area in the transmission control system through the control master monitor data transmission process shown in FIG.

The control master transmission system 1-1 in FIG. 1 corresponds to each. In the same way, the single control section of all machines is
By performing the same control operation as the machine number operation, all of the first to N @ car monitor data are stored in the master monitor table of each machine number.

The control status master monitor data transmission process shown in FIG. 11 is executed at fixed time intervals, so the master monitor table of each machine stores the latest data that is updated sequentially, so real-time monitor information is stored in the master monitor table of each machine. becomes.

On the other hand, each single control unit 2-1. 2-N, the group management control master determination process shown in FIG. 12 is executed at a cycle longer than the master monitor data transmission process interval (827).

The details are as shown in FIG. 13, initializing the first priority table (setting index I to O) (531),
Next, set the machine code of the square 9 priority data table corresponding to indent I to machine index J (
S32). Then, referring to the master monitor table corresponding to J (833), it is checked whether the single control unit of that machine is currently in the group management control master enabled state (S34).

As a result, if it is in the master permission state, the machine corresponding to the index J is determined to be the control master (835), and then the master monitor table is initially set to the non-permission state mode (836), and the process returns to the main routine. The reason why the disallowed state mode is set here is that if the single control unit that is the master of group management control is normal, the control unit corresponding to the own station in the master monitor table is This is because data can be set to a permitted state, and this can be used as a clue for monitoring normality and abnormality.

If the group management control master is not permitted in S34, the index I is incremented to refer to the next master priority table (837), and the process returns to 832.

Next, as shown in FIG. 13 836, the group management control master is determined based on the master monitor table that is the updater real-time monitoring information and the master priority data table shown in FIG. 15 that is the fixed data of the system inner circumference. Perform processing. This refers to the data stored in the master monitor table sequentially starting from the machine corresponding to the first priority machine code in the master priority data table shown in Fig. 14, and the priority system is high and the group management control master monitor data is in the master permission state. This is done by determining the first machine in , as the control master.

For example, if the data in the master priority data table is
If machine 1, machine 2, . If the No. 2 machine is in a disallowed state but the No. 2 machine is in a permitted state, the No. 2 machine is set as the control master. Figure 12, 1st
The group management control master determination logic process shown in FIG. 3 is executed at regular time intervals in each individual control unit as described above. Therefore, each individual controller 2-1 to be controlled by group management
~2-N, the status of the individual control unit serving as the group management control master can be detected in real time.

In other words, this means that it is possible to automatically transfer the control functions that manage the group management control main functions in all systems that are subject to group management. As a function, when Units 2 to N operate as sub-control function units and form a distributed control system group management system, Unit 1 is in an abnormal state such as a WDT trip, power fail, or transmission system connector connection failure. In this case, for machines 2 to N, 1 of the master monitor table
Since the machine monitor data storage area is initially set to the disallowed state mode and is not accessed, by executing the control master state determination process, the machine with the highest priority among the machines 2 to N@ is controlled. Once the master is determined, self-help migration can be performed in real time. the result,
Even if a control master ceases to function as a master, the next single control unit can immediately perform the function of a group management control master, and a highly reliable distributed control system can be constructed.

As mentioned above, an independent port for transmitting group management control master monitor data is established in the multiplexed transmission control system between each individual control unit, and control master permission/disapproval data transmission is performed. Since the equipment independently executes the control master determination logic processing that performs overall system management, this allows it to handle the group management control main function that performs centralized management without setting up a separate line or logic. Automatic designation of individual control units to be controlled can be easily realized, and the entire system can be configured as a distributed control group management system consisting of a group management control master function unit and sub-control function units for each machine.

As detailed above, in group management control, this device provides each single control section with a group management control sub function and a group management control main function. The single control unit designated by the unit executes the main function of group management control, and based on the sub-function execution results obtained from each single control unit, the optimal elevator is determined and its allocation command is determined in the best form that suits the situation. When performing operation control, each individual controller executes a status monitor function at predetermined time intervals, diagnoses its own functions, and generates master permission information when it is in a state where it can operate as a group control master. The master permission information of the single control unit that has been designated as the group management control master is transmitted to each single control unit via the high-speed transmission system and executes the group management control master monitoring function at a time interval longer than the status monitoring function. By checking the master permission information and changing the master permission information to non-permission information, the unit control unit designated as the group management control master is monitored for abnormalities, and by executing the group management control master monitoring release, the group management control master When an abnormality is detected in a single control unit specified by , the detected single control unit executes the group control master determination function to select another single control unit that has issued master permission information A group management control master command is given to a single control unit so that the single control unit functions as a group management control master.

In this way, each single control unit sequentially self-diagnoses whether it is in a state where it can function as a group management control master, and when it is in a state where it can function, it sends master permission information to each single control unit, so that each single control unit always By being able to grasp its own status, the transmission of abnormality monitoring information can be kept to a minimum, the transmission time and monitoring execution processing can be significantly shortened, and when an abnormality occurs, it can be immediately detected. The functions of the group management control master can be transferred to other single control units that are free from abnormalities, resulting in high reliability and high processing efficiency for monitoring.The number of transmitted information is kept to a minimum, making monitoring easier. It is possible to provide an elevator group management control device that can also reduce facility costs for separation.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications within the scope without changing the gist thereof.

[Effects of the Invention] As detailed above, according to the present invention, the automatic control function of the group management main control function unit can easily and inexpensively manage the entire system without providing a special abnormality monitoring line. Settings can be made, and the single control section that controls the main control function section controls WDTI-rip, power fall, and transmission line disconnection.

Even if an abnormal condition such as a poor transmission line connection occurs, the automatic setting function enables automatic migration of the group management main control 11 functional sections in real time, improving the reliability and efficiency of the entire system with an inexpensive configuration. It is possible to provide a distributed immediate group management control device that can improve the performance of the system.

[Brief explanation of the drawing]

FIG. 1 is a model diagram showing the control master monitor data transmission system according to the present invention, FIG. 2 is a book diagram showing the configuration of the elevator system according to the present invention, and FIG. 3 is a single unit in the elevator transmission control system according to the present invention. FIG. 4 is a block diagram showing the hardware system configuration of the high-speed transmission system according to the present invention; FIG. 5 is a diagram showing an example of the system configuration of the logical communication path of the transmission system according to the present invention. The block diagram, FIG. 6 is a system diagram showing the connection between logical communication paths according to the present invention, FIG. 7 is a block diagram explaining the control operation of the transmission control system according to the present invention, and FIGS. A flowchart showing specific operations of primary station and secondary station function processing in communication between tasks according to the invention, FIG. 10 is a diagram showing an example of a management table managed by the transmission control software according to the invention, and FIG. A flowchart showing the control master monitor data transmission operation according to the present invention, FIGS. 12 and 13 are flowcharts showing the group management control master determination logic processing operation according to the present invention, and FIG. 14 shows the group management control status monitor data information according to the present invention. FIG. 15 is a diagram showing an example of a master priority data table for setting group management control master priority according to the present invention. 1-1 to 1-N...Control master data transmission system, 2-
1. ~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 system i1D gM function task,
10...Group management control main function task, 11...Group management control sub-function task, 12...Transmission control task,
13... Microprocessor, ]4... Data link controller 15... Media access controller, 16... System bus, 17... Control line,
18... Serial transmission system, 19a... Station a, 19b... Station b, 20a... Transmission port a, 20b... Transmission port b, 21a... Receiving port a, 21b... Receiving boat b. Applicant's representative Patent attorney Takehiko Suzue Figure 3 Figure 4 Figure 9 FORT number Figure 10 Figure 11 Figure 13 (Master monitor table) Figure 14 (Master priority change data table) Figure 15

Claims (1)

[Claims] Multiple elevators are put into service for multiple floors, and evaluation calculations are performed to determine elevator operation based on the status information of each elevator in response to hall calls that occur, and each elevator is evaluated to determine the optimal In the elevator group management control system, which controls the operation of elevators in the best manner suited to the situation, such as making the elevator respond to the above-mentioned hall calls, the single control unit provided for each elevator for various controls of the elevator itself can be operated at high speed. In addition to communicating through a data transmission system, each single control unit has a group management control sub function that performs its own evaluation calculation for group management control, and a transmission function that transmits the evaluation calculation results to other single control units. ,
When designated as the main group management control, control and commands to control the operation in the best form suited to the situation, such as determining the optimal elevator and its assignment command based on the evaluation calculation results obtained from each individual control unit. It diagnoses its own functions at predetermined time intervals, generates master permission information when it can operate as a group management control master, and sends it to each individual control unit via the transmission system. The status monitor function that transmits the information and the master permission information of the single control unit designated by the group management control master are checked at longer time intervals than the status monitor function, and the master permission information is rewritten to disallow information. A group management control master monitoring function that monitors abnormalities in individual control units that have been designated as a management control master;
A group management control master determination function that selects another single control unit that has issued master permission information and issues commands from the group management control master when an abnormality is detected in a single control unit designated by the group management control master. An elevator group management control device characterized by comprising: