JPH05258195A - Supervisory and controlling system and its sequence processing system - Google Patents

Abstract

PURPOSE:To easily change a sequence processing program concerning the supervisory and controlling system and its sequence processing system of an equipment in a building, etc., which are provided with plural parts processing programs being made into the parts so as to execute the parts processing programs in accordance with a sequence table where the execution order of the parts processing programs are described. CONSTITUTION:A change request processing means 4 and a change request table 3 are provided. A control processing means 5 normally executes the parts processing programs in accordance with the sequence table 2 where the execution order of the plural parts processing programs 1 being made into the parts are described so as to execute supervisory-control by the execution. When the change request processing means 4 writes the change indication of sequence processing procedure in the change request table 3, the control processing means 5 refers to the change request table 3 so as to execute the parts processing programs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supervisory control system for monitoring and controlling building facilities in real time and its sequence processing method, and in particular, it is equipped with a plurality of component processing programs and the order of execution of the component processing programs. The present invention relates to a supervisory control system that executes a component processing program according to the sequence table described above and a sequence processing method thereof.

In recent years, buildings have become larger and more intelligent, and accompanying this, building facilities have become larger and have higher performance. In such buildings, power equipment, air conditioning equipment,
A system for constantly monitoring and controlling building facilities such as disaster prevention facilities is in place, but there is a demand for strengthening the monitoring function and improving the performance of the monitoring system by this monitoring and control system.

[0003]

2. Description of the Related Art Previously, a supervisory control system for building equipment such as electric power equipment, air conditioning equipment, disaster prevention equipment, etc. was composed of sequence control hardware without using a computer. After that, a supervisory control system using a computer appeared,
Building equipment is now monitored and controlled by software.

In such a supervisory control system using software, a sequence processing program in which a series of supervisory control processing procedures is described is prepared in advance, and the supervisory control is executed in accordance with the sequence processing program.

[0005]

However, if the sequence processing needs to be changed during the execution of the sequence processing program, the conventional supervisory control system requests the change unless the sequence processing program is recreated. I couldn't respond.

Further, it is difficult to remake the sequence processing program in a short time, and the remaking itself has not been an easy task. Even if it is remade, there is a problem that the versatility of the sequence processing program is lost and the original processing cannot be performed.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a supervisory control system and a sequence processing method thereof which can easily change a sequence processing program.

[0008]

FIG. 1 is a diagram for explaining the principle of the present invention proposed to achieve the above object.

The supervisory control system of the present invention includes a plurality of component processing programs 1 which are componentized, a sequence table 2 in which the execution order of the component processing programs 1 is described, a change request table 3 and a change request table 3. Change request processing means 4 for writing a change instruction of the sequence processing procedure,
Change request table 3 written by the change request processing means 4
And the management processing means 5 for executing the component processing program according to the sequence table 2.

Further, in the sequence processing method of the supervisory control system of the present invention, the change request processing means 4 for writing the change instruction of the sequence processing procedure in the change request table 3 and the change in which the change instruction is written by the change request processing means 4 It has a management processing means 5 for executing the component processing program by referring to the request table 3.

[0011]

Normally, the management processing means 5 executes the component processing program according to the sequence table 2 in which the execution order of the plurality of component processing programs 1 is described, and thereby the monitoring control is performed.

When the change request processing unit 4 writes a change instruction of the sequence processing procedure in the change request table 3, the management processing unit 5 refers to the change request table 3 and executes the component processing program.

By doing so, it becomes possible to easily change the sequence processing program.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram showing an outline of a building management system including a device according to an embodiment of the present invention.

TSs (Terminal Stations) 21 to 23 are
It corresponds to the power equipment, air conditioning equipment, and disaster prevention equipment in the building, and monitors and controls each equipment. TSC (Term
The inalStation Controller) 24 is a control device that controls the TSs 21 to 23, and is composed of a personal computer or a mini computer. MCS (Main Control Sta
tion) 25 stores data and manages the entire system. An MMS (Man-Machine Station) 26 is an input / output device for an operator. TS21-23 and TSC24
Are connected by a bus 27, TSC24 and MCS25, M
It is connected to the MS 26 by a bus 28.

For example, the TS21 for monitoring and controlling electric power equipment monitors electric power supplied from a plurality of substations, and when a power failure occurs, the supply route is switched according to the power consumption or the like, or the home is used. Operate the generator. Such monitoring and control operations are executed by a processing program provided in the TSC 24. Such a processing program is stored as a plurality of component processing programs that are divided into parts in advance, and the execution order of the plurality of component processing programs is a sequence table. It is described in. Therefore, the TSC 24 executes a plurality of component processing programs according to the execution order described in the sequence table. As the sequence table, a plurality of tables in which different execution orders of the component processing programs are described are prepared.

FIG. 3 is a block diagram showing the internal structure of the TSC 24. The component processing program 31 is composed of a plurality of component processing programs in which monitoring and control processing is preliminarily divided into minimum blocks, and a component processing program identification number (program ID) is given to each component processing program. The sequence table (TBL2) 32 is
The table is a table in which the execution order of a plurality of component processing programs 31 is described in advance according to the monitoring and control operations, and is composed of a plurality of tables in which different execution orders of the component processing programs are described. A sequence table identification number (table ID) is assigned to each sequence table.

FIG. 4 is a diagram showing the contents of one of the plurality of sequence tables. That is, the sequence table is provided with a “sequence item number” for each sequence processing unit, and each sequence processing unit has a component processing program ID unit 41 and a next processing item number unit 4
2, the changed next process item number unit 43, and the changed sequence table ID unit 44 (only the sequence process unit of the sequence item number 1 will be described, but other sequence process units are also the same. is there). Parts processing program I
The program ID of the component processing program is written in the D section 41. Each item of the next processing item number portion 42 is set corresponding to each of the return information 1 to m obtained as a result of the execution of the component processing program described in the component processing program ID portion 41. A sequence item number including a component processing program to be executed next after the component processing program is executed is described in each item. In the change next process item number section 43, when the change destination sequence item number at the time of sequence change is not specified in the change request table 37 described later (N =
0), the sequence item number to be changed is described. The change sequence table ID portion 44 describes the table ID of the change destination sequence table when the change destination table 37, which will be described later, does not specify the change destination sequence table (M = 0).

Returning to FIG. 3, the table ID pointer (hereinafter referred to as "pointer (D1)") 33 is a storage unit in which the table ID of the sequence table to be executed next is written, and the next processing pointer ( Hereinafter, the "pointer (D2)" 34 is a storage unit in which a sequence item number including a component processing program to be executed next is written. The management processing means 35 uses the pointer (D1) 33.
According to the sequence table specified by, the pointer (D
2) The component processing program of the sequence item number designated in 34 is read from the component processing program 31, and the monitoring and control processing is executed according to this program. Also,
After this execution, according to the return information, the next processing item number is obtained from the executed sequence table, and this is pointed to by the pointer (D2) 34.
Write in. By repeating the above, the pointer (D
1) The sequence process according to the sequence table designated in 33 is executed.

The change request processing means 36 uses the MM
A sequence process change request is received from the operator via S26, and the request content is changed to a change request table (TBL
1) Means for writing to 37.

FIG. 5 shows the change request table (TBL
1) A diagram showing the internal configuration of 37. That is, the change request table (TBL1) 37 includes five storage units 51 to 55.
The storage unit 51 includes a change request flag F1 indicating whether or not there is a change request (“0” indicates no request, “1” indicates request).
Is written, and the contents of change when there is a change request are written in the storage units 52 to 55.

A sequence table change flag F2 indicating whether or not the request is to change the sequence table is written in the storage unit 52. If the flag F2 is "0", it means that there is no request for changing the sequence table.
"1" indicates that there is a request. In the storage unit 53,
An in-sequential change flag F3 indicating whether or not the request is to change the component processing program (actually, the sequence item number) in the same sequence table is written. If the flag F3 is "0", it means that there is no request for changing the component processing program, and if it is "1", it means that there is a request.

When the flag F3 is "1", the change destination sequence item number N designating the component processing program (actually, the sequence item number) to be executed next is written in the storage unit 54, In the storage unit 55, when the flag F2 is "1", the changed sequence table identification number (I
D) M is written. When changing the sequence processing, the component processing program to be changed and executed next is not set as an arbitrary component processing program, but when it is set as a specific component processing program, the changed sequence item number N is set to "0". In addition, when changing a sequence, the changed sequence table identification number (ID) M is set to "0" when the sequence table to be changed and executed next is not arbitrary but a predetermined specific sequence table. And

At the time of setting the change request table (TBL1) 37, when it is desired to interrupt the sequence process flow and forcibly execute a specific process, the change request processing means 36
Sets the flag F3 to "1" and sets the changed sequence item number N to "0". When it is desired to change the sequence process flow to an arbitrary sequence process according to the purpose (for example, when another process is urgently performed by interruption due to a change in environmental conditions), the flag F3 is set to "1" and changed. Previous sequence item number N
A sequence item number having a processing program corresponding to the arbitrary sequence processing is written in the. Also, when you want to forcibly change the sequence table to be used to a specific sequence table (for example, it is necessary to interrupt the sequence processing, but you must perform the interrupt restoration processing to prevent an abnormal occurrence in the specific sequence table). (When it must be said), the flag F2 is set to "1" and the change sequence table identification number (ID) M is set to "0". When it is desired to change the sequence table to be used to an arbitrary sequence process according to the purpose (for example, when it is necessary to perform a completely different process from the sequence table currently in use), the flag F2 is set to "1" and In the changed sequence table identification number (ID) M, the identification number (ID) of the sequence table in which the arbitrary sequence process is described is written. After completing any of the above settings and writing, the change request processing unit 36 sets the flag F1 to "1".

Returning to FIG. 3, the management processing means 35 refers to the change request table (TBL1) 37, and when there is a change request, the change destination sequence item number N or the change sequence table identification number (ID) M. , Pointer (D2) 3
4 or the pointer (D1) 33, and the monitoring and control process is executed based on the changed sequence item number N and the changed sequence table identification number (ID) M that have been written. Details of the operation of the management processing means 35 will be described below with reference to FIGS. 6 and 7.

FIG. 6 is a flowchart showing the sequence processing procedure executed by the management processing means 35. The numbers following S in the figure represent step numbers. [S1] Pointer (D1) 33 and pointer (D2)
The table processing ID and the component processing program ID designated by the sequence item number written in 34 are written in the memory X. [S2] The memory X written in step S1 is "0".
Or not. That is, if the component processing program ID is “0”, it is considered that the sequence processing has been completed, and the processing ends. On the other hand, if the component processing program ID is not "0", the process proceeds to step S3. [S3] The component processing program indicated by X is read from the component processing program 31, and the monitoring and control processing is executed according to this program. [S4] The next processing item number corresponding to the return information obtained as a result of this execution is obtained from the corresponding sequence table and written in the pointer (D2) 34.

[S5] Change request table (TBL1) 3
7, it is determined whether the change request flag F1 is "1". If "1", the process proceeds to step S6, while if "0", the process returns to step S1 and step S6.
Step S1 is executed based on the next processing item number written in 4. [S6] A sequence changing process is executed. Figure 7 for details
Will be described later. [S7] The contents of the change request table (TBL1) 37 are cleared and the process returns to step S1.

FIG. 7 is a flow chart showing the detailed contents of the sequence changing process executed in step S6 of FIG. [S61] It is determined whether or not the in-sequential sequence change flag F3 is "1". If "1", step S62
On the other hand, if the value is "0", there is no request for changing the component processing program, and the process proceeds to step S65. [S62] It is determined whether or not the change destination sequence item number N written in the storage unit 54 of the change request table (TBL1) 37 is "0". If it is "0", there is no particular designation of the change destination, so the flow proceeds to step S64. When there is data that is not "0", the process proceeds to step S63. [S63] Pointer to the destination sequence item number N (D2)
Write to 34. Step S of FIG. 6 executed after this
In 1 to S3, this changed sequence item number N is used as the value of the pointer (D2) 34. [S64] Change next processing item number described in the sequence item number including the component processing program executed in step S3 of FIG. 6 (if the sequence item number 1 in FIG.
3) is written in the pointer (D2) 34. In the subsequent steps S1 to S3 of FIG. 6, the changed next processing item number is used as the value of the pointer (D2) 34.

[S65] It is determined whether the sequence table change flag F2 is "1". If it is "1", the process proceeds to step S66, while if it is "0", there is no request to change the sequence table.
Proceed to 7. [S66] Change sequence table identification number (I) written in the storage unit 55 of the change request table (TBL1) 37.
D) Determine whether M is "0". If it is "0", there is no particular designation of the change destination, so step S68.
Go to. If there is data that is not "0", step S
Proceed to 67. [S67] Change sequence table identification number (ID) M
Is written in the pointer (D1) 33. This changed sequence table identification number (ID) M is used as the value of the pointer (D1) 33 in steps S1 to S3 of FIG. [S68] The change sequence table ID described in the sequence item number including the component processing program executed in step S3 of FIG. 6 (or the change sequence table ID 44 if the sequence item number 1 of FIG. .. After this, steps S1 to S of FIG. 6 are executed.
In 3, the change sequence table ID is the pointer (D
1) Used as the value of 33.

An embodiment using actual concrete numerical values will be shown and described below. 8 is a sequence table of table ID = 1, and FIG. 9 is a flowchart of the sequence table of FIG. According to this example, first, the component processing program P21 indicated by the program ID of sequence item number 1 is executed. Assuming that the return information R1 is returned as a result of the processing, the next processing item number is “2”. Therefore, next, the component processing program P22 of sequence item number 2 is executed. After this execution, the next processing item number becomes "3", so the component processing program P25 of the sequence item number 3 is executed next. After this execution, the next processing item number becomes "6", so the component processing program P28 of the sequence item number 6 is executed next. After this execution, the next processing item number becomes "0", so that the sequence processing ends. If the parts processing program P21
If the return information R2 is returned as a result of execution of, the process proceeds to the sequence item number 4, and if the return information R3 is returned, the process proceeds to the sequence item number 7.

FIG. 10 is a diagram showing a specific numerical example of the change request table 37. While such a change request is executing the parts processing program P25, the change request processing means 36
Is written in the change request table 37 from. FIG. 11 shows the change operation of the sequence processing by such a change request.
Will be described.

FIG. 11 is a time chart showing a concrete change operation of the sequence processing. (A) is unchanged,
The execution period of each component processing program executed when the original sequence process is performed is shown, and (B) shows the execution period of each component processing program executed when the sequence process is changed. (C) shows the execution start timing of each component processing program, (D) shows the program ID of the component processing program corresponding to the sequence item number written in the pointer (D2) 34,
(E) shows the timing when the management processing means 35 refers to the change request table 37. (F) is change request table 3
The period in which the change request flag F1 of 7 is "1",
The program ID of the component processing program corresponding to the change destination sequence item number N is shown.

In FIG. 11, the management processing means 35 refers to the change request table 37 each time after the component processing program is finished and before the next component processing program is executed (after the execution of step S4 in FIG. 6). When referring to the timing 101, the change request table 37 is as shown in FIG. That is, since the change request flag F1 is "1" and the in-sequential change flag F3 is "1", the sequence item number 6 written in the pointer (D2) 34 is requested to be changed. It is rewritten to the sequence item number 7 written in the change destination sequence item number N of the table 37 (if it is represented by the program ID of the corresponding component processing program, P28 is rewritten to P24). After that, the component processing programs P24 and P27 are executed according to the sequence table of the table ID = 1. The change process of the above sequence processing is shown by a broken line 91 in FIG. If the sequence item number written in the change destination sequence item number N of the change request table 37 in FIG. 10 is “0”, according to the change next process item number 1 of the sequence item number 3, The parts processing program P21 will be executed.

In the above embodiment, the sequence table 2
Although the case where a plurality of sequence tables are provided has been described, the sequence processing can be changed even when the sequence table 2 is only one.

[0035]

As described above, according to the present invention, when the change request processing unit writes a change instruction of the sequence processing procedure in the change request table, the management processing unit refers to the change request table and Execute the processing program. Therefore, the sequence processing program can be easily changed while the sequence processing is operating. Since the sequence processing can be easily changed in this way, the flexibility of the sequence processing is increased, the development of the processing program is facilitated, and the turnaround speed is increased. Further, the sequence processing can be changed without changing the component processing program held as an asset, and the efficiency of the development of the processing program can be improved.

[Brief description of drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a block diagram showing an outline of a building management system including a device according to an embodiment of the present invention.

FIG. 3 is a block diagram showing an internal configuration of a TSC.

FIG. 4 is a diagram showing the contents of a sequence table.

FIG. 5 is a diagram showing an internal structure of a change request table.

FIG. 6 is a flowchart showing a procedure of sequence processing executed by a management processing means.

FIG. 7 is a flowchart showing detailed contents of sequence changing processing executed in step S6 of FIG.

FIG. 8 is a sequence table of table ID = 1.

9 is a diagram showing the sequence table of FIG. 8 as a flowchart.

FIG. 10 is a diagram showing a specific numerical example of a change request table.

FIG. 11 is a time chart showing a specific change operation of sequence processing.

[Explanation of symbols]

 1 parts processing program 2 sequence table 3 change request table 4 change request processing means 5 management processing means

Claims (8)

[Claims] 1. A supervisory control system comprising a plurality of component processing programs (1) which are componentized, and which executes a component processing program according to a sequence table (2) in which an execution order of the component processing program (1) is described. In the sequence processing method, a change request processing unit (4) for writing a change instruction of a sequence processing procedure in a change request table (3), and a change request table (3) in which the change instruction is written by the change request processing unit (4). And a management processing means (5) for executing a component processing program, and a sequence processing method of a supervisory control system. 2. The component processing program name to be executed by the management processing means (5) according to a change instruction written in the change request table (3), which is previously described in the sequence table (2). 2. The sequence processing method of the supervisory control system according to claim 1, wherein the component processing program corresponding to the program name is read out. 3. The change request processing means (4) writes a change destination part processing program name in the change request table (3), and the management processing means (5) writes in the change request table (3). 2. The sequence processing method of the supervisory control system according to claim 1, wherein a component processing program corresponding to the changed target component processing program name is executed. 4. The supervisory control system according to claim 1, wherein the sequence table (2) contains a name of a next component processing program to be executed next to the component processing program executed this time. Sequence processing method. 5. The sequence table (2) comprises a plurality of sequence tables in which different execution orders of the component processing program (1) are described, and the change request processing means (4) includes the change request table. (3)
The change destination sequence table name is written in the, and the management processing means (5) follows the execution sequence of the component processing programs described in the sequence table corresponding to the change destination sequence table name written in the change request table (3). The sequence processing method of the supervisory control system according to claim 1, wherein the component processing program is executed. 6. In a supervisory control system for performing sequence processing, a plurality of component processing programs (1) which are made into components, and a sequence table (2) in which an execution order of the component processing programs (1) is described, A change request table (3), a change request processing unit (4) for writing a change instruction of a sequence processing procedure to the change request table (3), and a change request table (3) written by the change request processing unit (4). And a management processing means (5) for executing the component processing program according to the sequence table (2).
And a monitor and control system. 7. The supervisory control system is the TSC of a building management system including an MCS (main control station), an MMS (man machine station) and a TSC (terminal station controller). 7. The supervisory control system according to claim 6. 8. The supervisory control system according to claim 6, wherein the supervisory control system monitors at least one of a power facility, an air conditioning facility and a disaster prevention facility in the building.