JPS61273477A - 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 (Technical Field of the Invention) The present invention relates to group management control of elevators in which a plurality of elevators are put into service for a plurality of floors. This invention relates to an elevator group management control device that decentralizes processing.

(Technical background of the invention and its problems) In recent years, when multiple elevators are installed in parallel, in order to improve the operating efficiency of the elevators and the service to elevator users, it is necessary to respond to hall calls for each floor. A small computer such as a microcomputer is used to allocate responding elevators 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, 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. It has become possible to ascertain the amount of traffic between players and the average time between arrivals at each hole.

Then, based on the above measurement data, the measurement data is processed for each time period, and the unique demand of each building is grasped, and the optimal machine is determined and dispatched when a hall call occurs.

It is directly applied to group management control, such as setting lunch and exit times, 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 functions in a distributed manner using multiple small computers such as microcomputers, and there is also a single elevator control device that is connected to the group management control device in a master/slave relationship. It is composed of small computers such as microcomputers and is digitized, and high-speed information is transmitted through transmission lines such as serial transmission between computers between the group management control device and the single control device.

As described above, in elevator systems that perform group management control, the overall system tends to become more complex and digital, such as an increase in the proportion of software controlled by microcomputers and high-speed information transmission between computers.

Under these circumstances, conventionally, the group management control device is a centralized control system, and basic data is 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 control device increases, and as the demand for hall calls increases, the processing capacity will be affected. For example, in systems that display reservations, the processing time from the generation of a hall call to the lighting of the reservation light of the optimal car varies depending on the number of cars on each floor, and the load on the computer of the group management control device is large, reducing 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.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to connect individual control devices that control individual elevators through a transmission system, and to provide a group management control device with an auxiliary function for group management control. To provide a group management control device which realizes equalization of computer load sharing and improvement of the efficiency of the entire system by performing processing for each unit as a mask on a single side @ device and distributing the group management function. It is in.

[Summary of the invention]

In other words, in order to achieve the above objective, multiple elevators are put into service for multiple floors, and each elevator is equipped with a single control device that controls each individual elevator. The elevator is equipped with a group management control means that performs a predetermined evaluation calculation related to the time required for a response in each elevator, selects the most suitable elevator, and assigns the response to a single control device corresponding to that elevator. In the group management control device, each of the single control devices is provided with a group management control sub-function that performs and sends out the evaluation calculation for its own elevator according to a command, and the group management control means is provided with a group management control sub-function that performs and sends out the evaluation calculation for its own elevator based on a command, and the group management control means is provided with a group management control sub-function that performs and sends out the evaluation calculation for its own elevator based on a command. , is configured by adding a group control main function that generates a start command for the group control control sub function and selects and assigns the optimum elevator based on the evaluation calculation value obtained from each individual control device, and the hall call is When this occurs, the group management control means sequentially issues a command to start the group management control subfunction to each of the single control devices, and each single control device uses this command to calculate the cost for its own elevator. The result is sent to a group management control means, and the group management control means selects the most suitable elevator to respond to the hall call based on the evaluation calculation values obtained from each individual control device. In this way, the load on the group management control means is reduced, and even when the number of service floors and the number of group management control elevators increases, the group management control function is distributed and controlled. To suppress deterioration of management control 11 function.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to 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, and this group management control section 1 includes single control sections 2-1. ~2-N, high-speed transmission system 6, low-speed transmission system 7
connected via. Group management control section 1 and single control section 2-1. ~2-N is composed of a small computer 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. This is a transmission control system that performs transmission between 2-N and the group management control unit 1, that is, mainly between the control computers in the machine room, and is connected by a high-speed, highly intelligent network. Then, the control information necessary for group management control is transferred to the group management control unit 1. Each single control unit 2-1. ~2-N exchange is occurring at high speed. The low-speed transmission system 7 is connected to the hall call button 3 of each hall. Monitoring room monitoring panel 5
It is a transmission control system that mainly transmits information sent via the hoistway, and is slower than the high-speed transmission system 6, and is constructed using optical cables etc. due to its long distance.
Group management control unit 1. It is connected to the single control unit 2 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 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 turned on. At the same time as setting: - Determine the optimum machine based on the information sent from the unit control unit 2 via the high-speed transmission system 6, and issue a control command to that unit. The unit control unit that receives the control command performs unit control using the control command as hall call information.

FIG. 2 is a software system configuration showing an embodiment of the software system of the group management control section and the single control section according to the present invention. The software configuration uses the real-time O88 operating system to perform individual control function tasks, group management control main function tasks, group management control sub-function tasks, and transmission control tasks 9 to 1.
2 is managed, and each task 9 to 12 is started or held by the scheduler in the real-time O8. Among these tasks 9 to 12, the single unit i11 function task 9 is the single unit control unit 2-1. ~2-N is the core function, and each single control unit 2-1. ~2
-N is a task that has a high priority and is always activated at regular intervals.

Single control unit 2-1. ~2-N includes nine other group management control subfunction tasks 11. Each task of the transmission control task 12 is added. The group management control sub-function task 11 is a function of calculating an evaluation value corresponding to the time required for the own elevator to respond to a generated call, based on a predetermined evaluation calculation formula.

Also, group management control main function task 10. The transmission control task 12 is assigned to the group management control section 1.

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-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.
By collecting the information data of the evaluation value for each machine determined by the group management control subfunction task 11 distributed in ~2-N and performing a comparison calculation, the optimum machine 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 sub-function task 11 is a function for processing information for each machine of the group management control 1, 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 a main group management control function.

It has a configuration that manages termination, and performs distributed processing on a unit-by-machine basis according to commands from the group management control main functional layer, which is a mask, and transfers data to the main functional layer at the time of completion of the above processing. Become. Transmission control task 12
performs control over data exchange in the high-speed transmission system 6 and activation and termination of the group management control subfunction task 11.

FIG. 3 is an embodiment of a block diagram showing the system configuration of the high-speed transmission system 6 of FIG. 1. Transmission control is performed using a microprocessor 13, for example,
The data link controller 14 and the media access controller 15, which are composed of hardware, are used to control the data link layer of the LAN network model layer proposed by the International Organization for Standardization (International Organization for Standardization), and data transmission is performed with high intelligence. It is configured so that it can be carried out. 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, N32586, an LSI manufactured by Intel Corporation, has been put into practical use as the data link controller 14 that realizes the above-mentioned highly intelligent transmission control, and 182501, also manufactured by Intel Corporation, has been put into practical use as a media access controller. Ori,
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. Note that 16 is a three-system bus, 17 is a control line, and 18 is a serial transmission system.

Next, control operations between the computers will be explained with reference to FIGS. 4 to 6.

jI4WJ is a flowchart showing an example of the operation of the group management control unit 1 having a group management main function task, taking as an example the case when a hall call occurs, and FIG. boot.

FIG. 3 is a diagram illustrating an illustrative format of a transmission data text for controlling termination; Also, Figure 6 shows
FIG. 4 is a diagram showing transitions of operations in inter-task communication between each control unit for realizing the above-mentioned distributed processing. We will proceed in detail by taking as an example each control unit and transmission control system when a hall call occurs.

When the hall call button is pressed and a hall call is generated, information on the occurrence of the hall call is input from the transmission #Ji 11 section 4 via the low-speed transmission system 7 to the group management control section 1 which shares the group management main function task. Then, in the group management control main function task 10 of the group management control unit station, the STI shown in FIG. 4 is executed and each individual control unit 2-1. ~2-N Information on generated hall calls and group management control subfunction task 1
1 activation information is transmitted, and a task activation request is made to each single control station.

The transmission format of the group management control subfunction task activation request described above corresponds to the transmission data text format (1) in FIG. 5(a). That is, D in FIG. 5(a)
S is the destination station address for each single control unit 1 2-1. - Indicates the station number corresponding to 2-N,
K is a text identification number, and specifically corresponds to task activation request information in the above case. FNC is a task number, which is information on which task is activated in response to the task activation request, and in the above case, indicates one code of the group management subfunction task. The reason for calling it one code here is that the group management sub-function task assumes that there are multiple processing functions for each function. Specifically, this corresponds to the calculation of evaluation values.

D! ~DN is message data to be passed to the task requested to be activated, and the task requested to be activated uses this message data as input information to process the task.

In this example, information on the floor of the hall where the occurrence occurs corresponds.

As shown in FIG. 4, the group management control main function task 10 of the group management control unit 1 that sent the task activation request is executed by each individual control unit 2-1. ~2-N enters the data transmission wait state for group management subfunction task processing (ST2), and then
The exclusive right of the task is released to the scheduler of the real-time OS8, and the exclusive right of the CPLJ (processor) is given to other processing. This is because, as shown in Figure 6, it takes time to complete the series of processes from sending task activation request data a to the single controller to receiving request data f from the station of the single controller that requested it. , and the group management control main function task 10 is executed by each individual control section 2-1 of all machines. By sending data back from ~2-N,
Restarts the process that was waiting.

a, the group management control main function task 10 of the group management control unit 1 causes each single control unit 2-1. A group management control subfunction task activation request is issued and transmitted to 2-N in order. Then, the single control unit 2-1. In ~2-N,
Each receives this. That is, as shown in FIG. 6b, this is received and the data is decoded. Since the transmission data is in the above-mentioned transmission data text format (1), the command content is determined by decoding the data in the text identification number in the transmission data. As a result of this decoding, when it is recognized that the task has been activated by the local station, the station that has been recognized (the single control unit recognized as the local station) C is entered, and the task with the corresponding task number FNC is activated. At that time, message data is delivered to the task corresponding to the task number.

In this example, the corresponding task number is the evaluation value at the time of hall call occurrence (i.e., the evaluation value regarding the waiting time for the hall call response using information such as car call registration, car position, operating status, etc. of a single elevator). is expressed numerically.It is calculated based on a predetermined calculation formula using predetermined items used for evaluation.

), and the data on the floor where the hall call occurred is handed over as message data. That is, in the recognized station, CPt is activated by the startup command.
When the group management control subfunction task 11 receives exclusive rights to J, it inputs the above message data, performs evaluation calculations based on that information, and then executes group management I+1JIl18B1 through steps d and e in Figure 6. Data is returned to the main function task 10 in the format of the transmission data text format (2) shown in FIG. 5(b). During this format, ADR indicates the memory address and everything else is the same as before. The data in this transmission data text format (2) is transmitted to each unit control unit 2-1. ~2-N to the group management control unit 1 between these stations, and when the group management control unit 1 receives data in this format at f in FIG. Based on the data in the text identification number, it is detected that the request data for the data requested to start up the single 1Mll1 station is received, and the memory address ADR and message data Di to DN are received.
Receive data by. The transmission control unit 4 monitors the return transmission and reception of data from all the single control unit stations that issued the request command, and when it detects that data has been returned from all stations, it enters ST3 in FIG. 4, interrupts and waits. The group management main function task 10 of the group management Wi IIJ lit unit 1 that is in the state is restarted. Then, ST4 is entered, and each single control unit 2-1. ~2-
Comparison processing is performed based on the message data D1 to DN received from N.

In the hall call generation of this example, each single control unit 2-'
1. ~2-Text format sent from N (
Message data D! in the received data of 2)! ~ON
is each single control unit 2-1. ~2-N is the evaluation value for the hall call generation floor, and the group management control unit 1 determines the optimal machine for the hall call floor in ST5 based on this value, and issues an allocation command to the individual control unit of this optimal machine. High-speed transmission system 6
to complete the hall call generation process.

The present invention has been specifically described above regarding processing when a hall call occurs, but to summarize, basically, when the station responsible for the group management control main function performs processing by starting a task, each individual unit 2iIJm unit 2 -1. The necessary message data from the group management control main function side that conforms to the transmission data text format (1) in FIG. 5(a) is transmitted to each of the stations 2-N,
Next, in order to avoid monopolizing the CPU, this task is temporarily interrupted and exited. And each single control unit 2-1
．． In steps 2-N to 2-N, the task with the corresponding task number is activated based on this message data, and evaluation calculation processing is performed to obtain an evaluation value using the necessary message data as input information. Then, when the evaluation calculation process is completed, message data based on this process (data of the above-mentioned evaluation value, etc.) is returned from the single control unit to the main function station of the group management control unit 1. Then, the group management control unit 1 restarts the task upon completion of returning messages from all requesting stations (all single control units that requested calculation of evaluation value data), and determines and assigns the optimal machine number based on the data. Process. In this way, via the transmission system, each station communicated with each other to inquire about tasks, making distributed processing possible.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, but can be implemented with appropriate modifications within the scope of the gist thereof. Although the explanation has been given using processing control as an example, the above-mentioned concept can be similarly applied to tasks that perform other processing. In addition, in this embodiment, one independent system as the group management control section has been explained as an example, but one station of each of the 11 individual wJI sections has the function of the main functional task of the group management control section, A distributed processing function can also be realized in a system that starts its own sub-function tasks and the stations of other single control units.

As described above in detail, according to the present invention, a group management control device for elevators allows a plurality of elevators to be put into service for a plurality of service floors, and selects and responds to a common hall call by servicing the elevator. In this system, the single control unit that controls each single elevator is equipped with a group management control subfunction that calculates and outputs the evaluation value of its own elevator machine in response to a new hall call, and a high-speed transmission system is used between each control unit. At the same time, the transmission control system is provided with a function of starting and terminating a task to enable synchronized control of inter-task communications between each station, and when a new hall call occurs, each individual control unit is provided with the group management control subsystem. The group management control unit has a main function for group management control, which instructs the execution of functions, and also receives the evaluation value of each individual elevator number for this newly generated hall call and allocates the most suitable car for response based on this evaluation value. Then, the group management control main function is executed to perform main control, and the group management control sub function task 611111 of each single control unit is performed.As a result, each single control unit calculates its own evaluation value and uses it as a group control function. Since the evaluation value is returned to the management control unit, and the group management control unit performs group management based on this evaluation value, from now on, distributable processing will be shared as much as possible by each single control unit. This enables distributed processing of the group management function, compared to the conventional method in which each machine valve is centrally processed in the group management control section based on basic data input for each machine.
It is possible to equalize the load on the cPUs based on the system machine parameters, reduce unnecessary transmission of basic data, and improve the performance of the entire system.

Further, the inter-task communication for transmission control as in the present invention can be generally applied to distributed processing in a system using a plurality of padding machines.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a configuration example of a group management control elevator system according to the present invention, FIG. 12 is a diagram showing an example of a software system configuration used for group management control of an elevator system according to the present invention, and FIG. 3 is a block diagram showing a configuration example of a group management control elevator system according to the present invention. FIG. 4 is a block diagram showing an example of the hardware system configuration of a high-speed transmission system. FIG. 4 is a flowchart showing the operation of the group management control main function task when a hall call occurs according to the present invention. FIG. Example of the transmission data text format of the transmission system that controls startup and termination II
FIG. 6, which is a diagram showing Ig4, is a diagram showing the operational transition of distributed processing between the individual control units of the φ group management control device according to the present invention. 1...Group management control unit, 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 0819... Single control function task, 10... Group management control main function task, 11... Group management control sub-function task, 12...
・Transmission control task, 13... microprocessor,
14... Data link controller, 15... Media access controller, 16... System bus,
17...Control line, 18...Serial transmission system. Applicant's representative Patent attorney Takehiko Suzue Figure 2 Figure 4
Hiroko-7 U'Quist Format (2) DS:
Ji'Hiroshi J Suuichi Shizu Seatress K: Iquist Tennime] Ashi1raFNCNiasufA1''Also ADR: ノ、Mo、Leadremata D1-DN: Medsageta Figure 5 Figure 6

Claims (1)

[Claims] Multiple elevators are put into service for multiple floors, each elevator is equipped with a single control device that controls the individual elevator, and each elevator responds to a hall call that occurs. A group management control device for elevators is provided with a group management control means that performs a predetermined evaluation calculation related to the running time required for each elevator, selects an optimal elevator, and allocates and responds to a single control device corresponding to the elevator. The control device is added with a group management control subfunction that performs and sends out the evaluation calculations for its own elevators according to instructions, and
The group management control means generates an activation command for the group management control sub-function in response to a hall call that occurs, and selects and assigns an optimal elevator based on the evaluation calculation value obtained from each individual control device. A group management control device for an elevator, characterized in that it is configured with an additional main function and performs distributed processing control of a group management control function.