JP2000163122A - Integration type data managing device for computer for monitor and control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To flexibly and quickly cope with access for obtaining data and access for control from a remote terminal. SOLUTION: This is an integration type data managing device 5a1 to be used while integrated into a computer 2a1 for monitor and control. This device is provided with a data processing part 10 for obtaining the state data of a corresponding facility and equipment S1 to be controlled, a shared memory 11 for storing the state data obtained by the data processing part 10, and an input and output part 12 for reading the state data corresponding to a request for the transmission of the state data transmitted from a remote terminal 4a1 through a general network 3 from the shared memory 11, and for outputting the state data through the general network 3 to the remote terminal 4a1. Thus, it is possible to obtain the state data of equipment to be controlled stored in the data managing device or to set and change a parameter for control by directly performing access from a general remote terminal such as a personal computer through a general network such as an internet to the data managing device integrated into plural computers for monitor and control set for each equipment to be controlled. Thus, control corresponding to each equipment to be controlled can be quickly and flexibly attained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used by being incorporated in a plurality of computers for monitoring and control which are distributed and arranged for monitoring and controlling a large number of devices related to a plant to be controlled and monitored such as electric power, gas and water. The present invention relates to a supervisory control computer embedded data management device.

[0002]

2. Description of the Related Art FIG. 14 shows an outline of a conventional supervisory control system composed of a plurality of supervisory control computers.

According to FIG. 14, in a conventional monitoring and control system for electric power, gas, water and the like (distributed monitoring and control system), facilities and equipment to be controlled (hereinafter simply referred to as control target equipment in this specification). S1, S2, ... (Fig. 1)
4, the real-time data (real-time state data) representing the situation (state) is transmitted to the central computer 50 via a dedicated network, and received and processed by the processing unit 51 of the computer 50. Calculator 50
Has been accumulated in the database 52.

In the conventional monitoring and control system, a central computer 50 and terminals (computers) 53a1 and 53a2 arranged at a distance from the central computer 50.
,... (Two in FIG. 14) are connected via a dedicated network 54 so as to be able to transmit and receive data, and operate their terminals 53a1, 53a2,. Access the database 52 to read the state quantity data of each controlled device S1, S2,... From the database 52, and monitor the status of each controlled device S1, S2,. It has become.

That is, the status data read from the database 52 is based on the monitoring operation screen data stored in the terminals 53a1, 53a2,.
, 53a2 are displayed on each monitor screen, so that the operator can monitor the status of each control target device S1, S2,... Via the monitor screen.

Further, by operating the terminals 53a1, 53a2,..., The database 52 is accessed from a distance via the processing unit 55 of the central computer 50, and the control target devices S1,. By transmitting the control data relating to S2,... To the respective devices S1, S2,..., The respective controlled devices S1, S2,.

[0007]

However, until now, each of the control target devices S1, S2,
.., The data acquisition access (operation) and control access of the control target device from the remote terminal must always be dealt with via the central computer 50. It was difficult to respond flexibly and quickly to the data acquisition access and control access.

Further, since there is no means for giving a time (precision time) having a predetermined accuracy such as an accurate absolute time to data of a plurality of controlled devices, accurate time-series state data relating to a large number of controlled devices is provided. Was difficult to weigh.

Further, the terminal 53a1 of the supervisory control system
, 53a2,... Are connected by a dedicated network 54, and the processing execution software (program) held in each terminal 53a1, 53a2,. It was difficult to expand and remodel.

Further, since software (programs) for data operation is concentrated on the central computer 50, it is difficult to modify the operation software (program) according to each of the devices S1, S2,... To be controlled.

Then, the monitor operation screen data for displaying the data of the controlled devices S1, S2,.
3a1, 53a2,... Side, each terminal 5
The stored data on the 3a1, 53a2,... Side becomes large, and an expensive terminal capable of storing such a large amount of data is required.

Further, the communication method and each terminal 53a1, 53a
2, ... are dedicated to monitoring and control systems and are not general-purpose, so it was difficult to integrate them with networks with different communication methods.

Further, each of the conventional terminals 53a1, 53a2
In a distributed monitoring and control system in which
Each of the terminals 53a1, 53a2,.
In such a case, it is difficult to secure data access security.

The present invention has been made in view of the above-mentioned circumstances, and in a monitoring control system, each monitoring control computer does not have access to a central computer, but has data access and control access from remote terminals. The first object is to respond flexibly and promptly to the situation.

The present invention has been made in view of the above circumstances, and each monitoring control computer of a monitoring control system stores a real-time state data of a corresponding control target device by adding a precise time. It is a second object of the present invention to be able to easily compare and examine accurate time-series state data on a plurality of control target devices.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and makes it possible to install processing execution software (program) in each monitoring and control computer of a monitoring and control system. Its third is to make it easy to make expansions and modifications
The purpose of.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and enables a monitor operation screen data to be mounted on each monitor control computer of a monitor control system, thereby reducing the amount of data stored in a terminal. Is a fourth object of the present invention.

The present invention has been made in view of the above circumstances, and is not a network dedicated to a supervisory control system.
By enabling the terminal to receive status data acquired by each monitoring and control computer via a general-purpose network such as the Internet, it is possible to easily implement monitoring and control of a wide range of monitoring and control targets corresponding to a general-purpose network. This is the fifth purpose.

The present invention has been made in view of the above circumstances, and has a function of managing, for each monitoring control computer of a monitoring control system, a terminal that can access the monitoring control computer and a terminal to which access is added. A sixth object of the present invention is to ensure that only the terminal and the user who are permitted to access the computer for monitoring and control can access the monitoring control computer by installing the computer.

[0020]

The present invention comprises a supervisory control computer embedded data management apparatus according to the present invention for realizing each of the above-mentioned objects, and a supervisory control computer incorporating the supervisory control computer. FIG. 1 shows the basic configuration of the monitoring control system.

As shown in FIG. 1, a monitoring and control system 1 according to the present invention includes a device to be controlled (a device and a device to be controlled).
(Two in FIG. 1) are provided for each of the monitoring control computers 2a1, 2a2,... And remote from the monitoring and control computers 2a1, 2a2,. , Remote terminals 4a1, 4a2,... (Two in FIG. 1) connected to the monitoring control computers 2a1, 2a2,.

In the monitoring and control system 1 according to the present invention, the monitoring control computers 2a1, 2a2,... Arranged for each of the control target devices S1, S2,. , Which have a built-in distributed / controlling computer-based database function for acquiring the state data and storing the acquired state data as a database, respectively.

For example, the data management devices 5a1, 5a2,
, Are constituted by mounting various circuit components (LSI, etc.) such as a CPU, a memory, an input / output interface on a substrate, and the data management devices 5a1, 5a2,... Correspond to the corresponding monitoring control computers 2a1, 2a2,. Are attached to, for example, empty slots.

Then, each data management device 5a1 of the present invention
, 5a2,... Are remote terminals 4a1, 4a2,.
., And a function of receiving various control information sent from the remote terminals 4a1, 4a2,..., And storing the stored state data via the general-purpose network 3 into the remote terminals 4a1, 4a2. ,... And a function of setting control parameters for determining the operation range of the corresponding controlled devices S1, S2,.

The remote terminals 4a1, 4a2,... Have a browser function (hardware such as a monitor and a database browsing display program) for browsing and displaying a database on the general-purpose network 3. A monitoring and control computer 2a1 connected to the network 3;
The status data accumulated and stored by the data management devices 5a1, 5a2,... Of 2a2,... Is monitored and controlled via the general-purpose network 3, and has a configuration with enhanced expandability and versatility.

Further, each of the monitoring control computers 2a1, 2a
Each of the data management devices 5a1, 5a2,... Can also have a screen server function.
It is also possible to display a monitor control screen of the corresponding control target device on the display unit (monitor) of 1, 4a2,...

That is, the computer-managed data management device for monitoring and control according to the present invention described above comprises a plurality of monitoring and control devices arranged for each device for monitoring and controlling the status of a plurality of devices to be monitored and controlled. Embedded data management incorporated in each monitoring control computer in a monitoring control system including a monitoring computer and a terminal communicably connected to a plurality of monitoring control computers via a communication network In the device, data acquisition means for acquiring state data representing the real-time state of the corresponding control target device, data storage means for storing the state data acquired by the data acquisition means, and from the terminal via the communication network In response to the transmitted status data transmission request, status data corresponding to the transmission request is read from the data storage means. Via the communication network by and a data output means for outputting to the terminal.

[0028] In a preferred aspect of the present invention, the data output means controls the predetermined control device based on data relating to a predetermined control content of the control target device input from the terminal. Control parameter setting means for setting control parameters for performing the control, and control parameter storage means for storing the control parameters set by the control parameter setting means.

As a preferred aspect of the present invention, the control parameter setting means has a first program module for setting the control parameters, and responds to data relating to the predetermined control content inputted from the terminal. The control parameters are set by executing the first program module, and the control parameter storage means includes a file for the control parameter management and storage and a second program for the control parameter storage processing. A control module for executing the second program module and storing the set control parameters in the control parameter management / storage file.

[0030] As a preferred aspect of the present invention, the plurality of terminals are provided, and when the first program module is simultaneously accessed from the plurality of terminals to update the control parameters, one of the terminals is accessed. Means for invalidating access from the terminal are provided.

As a preferred aspect of the present invention, an acquisition condition holding means for holding in advance an acquisition condition for each state data of the corresponding control target device is provided, and the data output means is held by the acquisition condition holding means. By referring to an acquisition condition for each state data, an acquisition condition of the state data corresponding to the state data transmission request transmitted from the terminal via the communication network is read, and the transmission request stored in the data storage unit is read. Means for selecting and reading out only the data corresponding to the acquisition condition from the state data corresponding to the above, and outputting the selected data to the terminal via the communication network.

According to a preferred aspect of the present invention, the acquisition condition of the corresponding state data held in the acquisition condition holding means based on the acquisition condition change information of the state data transmitted from the terminal via the communication network. Is provided for changing the condition.

According to a preferred aspect of the present invention, when the status data of the control target device stored in the data storage means has a position address on the data storage means and has a unique structure, Holding means for holding a position address and a data structure of data in advance, the data output means reads a position address of state data corresponding to the state data transmission request from the holding means,
The state data stored at the read position address in the data storage means is read from the data storage means and output to the terminal via the communication network.

As a preferred embodiment of the present invention, there is provided a screen file holding means for holding a plurality of monitor operation screen files corresponding to a plurality of status data, and the data output means is provided from the terminal via the communication network. Based on the transmitted status data display request, a monitoring operation screen corresponding to the status data requested to be displayed is extracted and read out from the monitoring operation screens held in the screen file holding unit, and read out. Means for outputting a monitoring operation screen to the terminal via the communication network.

According to a preferred aspect of the present invention, a program language for describing a structure of the status data stored in the data storage means and status data are obtained based on a status data transmission request transmitted from the terminal. Holding means for holding in advance a table in which a position address of a parameter defining a data structure of the state data is defined in the state data output program language format when a program language for outputting to the terminal is different. The data output unit reads the position address of the status data corresponding to the status data transmission request from the holding unit by executing the status data output program,
The state data stored at the read position address in the data storage means is read from the data storage means and output to the terminal via the communication network.

As a preferred embodiment of the present invention, the terminal includes a plurality of terminals, and an access permission setting unit for setting in advance for each terminal whether or not to permit the plurality of terminals to access the data input / output unit is provided. The data output unit reads out status data corresponding to the transmission request from the data storage unit only when a status data transmission request is transmitted from the terminal to which access permission is set via the communication network. Output to the terminal via the communication network.

[0037] As a preferred embodiment of the present invention, there is provided a precise time acquiring means for acquiring a precise time, wherein the data storage means acquires the state data acquired by the data acquiring means by the precise time acquiring means. The precision time is added and stored as state data with precision time.

[0038]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an embedded data management device according to the present invention will be described with reference to the drawings.

(First Embodiment) FIG. 2 is a data management apparatus for incorporating a supervisory control computer according to a first embodiment of the present invention (hereinafter also referred to simply as an embedded data management apparatus).
1 is a diagram showing a schematic configuration of a monitoring control system 1 including a monitoring control computer in which is incorporated. FIG. 2 is a diagram for more specifically explaining the monitoring and control system 1 shown in FIG. 1 described above, and the monitoring and control system 1 shown in FIG.
The same reference numerals are given to the same components as those described above, and the description thereof will be omitted or simplified.

In FIG. 2, attention is paid to one monitor control computer 2a1 and the control target device S
2. The monitoring control computer 2a2 and the remote terminal 4a2 are not shown.

According to the present embodiment, as shown in FIG.
The data management device 5a1 incorporated in the monitoring control computer 2a1 is a data acquisition unit 10 as data acquisition means for acquiring and processing status data representing the real-time status of the control target device S1, and the data acquisition unit 10 acquires the data. A shared memory 11 as data storage means for storing state data stored in
Is configured to write the acquired state data into the shared memory 11.

Further, the data management device 5a1 is a monitoring operator of a device to be controlled using the remote terminal 4a1 (hereinafter, referred to as a monitoring operator).
(Hereinafter also referred to as an operator) through the operation unit of the remote terminal 4a1, input a data acquisition instruction (command) as control information transmitted through the general-purpose network 3 by the browser function B1, and acquire data. An input / output unit 12 for outputting status data corresponding to the instruction command to the remote terminal 4a1 via the general-purpose network 3 is provided.

The input / output unit 12 of the data management device 5a1
It has a program module called as a subroutine from the remote terminal 4a1. For example, when this program module is described in the Java (trademark of Sun Microsystems) language, each data type acquired by the data processing unit 10 is Class unit. In each class of the program module, a method exists for each data operation.

On the other hand, the remote terminal 4a1 is a general-purpose terminal such as a personal computer connected to the general-purpose network 3,
U, a memory, a monitor, an input / output device, and the like. For example, when the Internet is used as the general-purpose network 3, a browser for the Internet (WWW) can be used as the browser function B1 of the remote terminal 4a1.

The configuration of the other supervisory control computer-incorporated data management devices 5a2,... Is such that the corresponding control target device is the device S2 and the corresponding remote terminal is the terminal 4.
Except for a2,..., the configuration is the same as that of the supervisory control computer-incorporated data management device 5a1, and the description thereof is omitted.

Hereinafter, the overall operation of this embodiment will be described. For the sake of simplicity, the operation of the supervisory control computer embedded data management device 5a1 will be mainly described.

That is, according to this configuration, a plurality of status data relating to the control target device S 1 are sequentially (for example, periodically) acquired by the processing of the data processing unit 10 and stored in the shared memory 11.

At this time, the operator operates the remote terminal 4
When the input / output unit a1 is operated to input, for example, predetermined state data acquisition instruction information relating to the control target device S1, the input data acquisition instruction information is transmitted to the general-purpose network 3
To the input / output unit 12 via

The input / output unit 12 receives the data acquisition instruction information sent via the general-purpose network 3, reads out the status data corresponding to the data acquisition instruction information from the shared memory 11, and remotely reads the status data via the general-purpose network 3. Terminal 4a
Send to 1.

The remote terminal 4a1 has its browser function B
1 is executed, the transmitted status data becomes
Displayed on the browser on the monitor screen.

As described above, the remote terminal 4a1 can acquire and display the status data from the monitoring control computer 2a1 (data management device 5a1). 2a1, 2a2,... (Data management devices 5a1, 5a2,...) Can be acquired and displayed (remote terminal 4a2,.
The same applies to).

As described above, according to the present embodiment,
By providing a data management device inside the monitoring control computer provided for each monitoring control target, the status data of the corresponding control target device is stored and stored for each monitoring control computer.
A distributed database to manage can be constructed.

As a result, it is easy to obtain real-time status data of the corresponding control target device from the remote terminal, grasp the status data of each control target device, and change the data operation program according to the control target device. Etc. can be easily performed.

Further, according to the present embodiment, it is possible to acquire status data relating to an arbitrary monitoring control computer from a general-purpose remote terminal such as a personal computer via a general-purpose network such as the Internet. Monitoring and control of a wide range of monitoring and control targets can be easily performed from the terminal.

(Second Embodiment) FIG. 3 is a diagram showing a schematic configuration of a supervisory control system 1A including a supervisory control computer incorporating a data management device according to a second embodiment of the present invention. is there. The same components as those of the monitoring control system 1 and the data management device 5a1 shown in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof will be omitted or simplified.

According to the present embodiment, as shown in FIG.
Setting a control parameter (for example, the state quantity (state value) of the control target device S1 to a predetermined value) as instruction data for performing predetermined control on the control target device S1 via the remote terminal 4a1; When a parameter indicating the acquisition of the state quantity (state value) of the control target device S1 is specified and transmitted as the control parameter data PD to the data management device 15a1 via the general-purpose network 3, the data management device 5a1 The input / output unit 20 has a function of writing the transmitted control parameter data PD to the shared memory 21. The data processing unit 22 reads the control parameter data PD written to the shared memory 21, and By transmitting a control command (control information) corresponding to the control parameter data PD to the device S1, the control parameter is transmitted. It becomes possible to perform control based on Tadeta PD.

FIG. 4 shows a data management device 15 according to this embodiment.
FIG. 3 is a diagram showing a detailed functional block configuration of an input / output unit 20 of a1.

The input / output unit 20 is specifically composed of a computer circuit such as a CPU and a memory. As shown in FIG. 4, the input / output unit 20 is capable of operating data from each of the remote terminals 4a1,. Interface program 25
And a control parameter management file PF for storing and managing the control parameter data PD.

The interface program 25 is a program which operates on the input / output unit 20 and includes a program module which can be called and operated from the remote terminal 4a1.
The control parameter setting means of the present invention is realized.

That is, the interface program 25
Is called directly from the remote terminal 4a1 and
A remote terminal interface unit (program module) 25a for setting and acquiring the control parameter PD in accordance with the input data from the control unit 1 and the control parameter data PD for the shared memory 21;
1 and a shared memory data setting / acquisition unit (program module) 25b for acquiring state data from the control parameter management file PF.
File data setting for obtaining control parameter data PD from the control parameter management file PF
And an acquisition unit (program module) 25c.

The remote terminal interface program module 25a is called from the remote terminal 4a1 and sets the data input from the remote terminal 4a1 (sets the type of control parameters in the shared memory 21 or sets the control parameters to be obtained from the shared memory 21). For example, the remote terminal 4a1
(The arithmetic processing unit: CPU) is operated to set the control parameter data PD and send it to the shared memory data setting / acquisition unit 25b and / or the file data setting / acquisition unit 25c.

The remote terminal interface unit 25a
By operating the input / output unit 20 (CPU),
The real-time status data and control parameter data PD of the corresponding control target device S1 returned from the shared memory data setting / acquisition unit 25b and the file data setting / acquisition unit 25c are output to the remote terminal 4a1.

The shared memory data setting / acquisition unit 25b
By the operation of the input / output unit 20, the control parameter data PD input from the remote terminal 4a1 via the remote terminal interface unit 25a is set in the shared memory 21, and the real-time data related to the control target device S1 stored in the shared memory 21 is stored. The status data is acquired and returned to the remote terminal interface unit 25a.

The control parameter management file PF is a control parameter storage means of the present invention. As control parameters, control items (for example, voltage and current when the equipment to be controlled is electrical equipment) and their set values (For example, 100 V, 200 A).

The file data setting / acquisition unit 25 c operates the remote terminal interface unit 2 by the operation of the input / output unit 20.
5a is set in the management file PF, and the management file PF
The control parameter data PD stored in the shared memory data setting /
The information is transmitted to the acquisition unit 25b.

As an example of the above-mentioned interface program, the data management device 1A is used when the device to be monitored and controlled performs the set value control in the power system protection control relay system as the monitoring control system which is the power system equipment. Setting interface program 25
A specific example will be described below.

According to this specific example, the data management apparatus 1A has a class called RelayReference as the remote terminal interface program module 25a in the settling interface program 25, and methods such as setMaximumValue and the like are described below. Suppose there is a method to be described.

[0068]

[Outside 1] Each of these methods (1) to (6) is a remote terminal 4a1.
When an argument such as relay, number or the like is input from the remote terminal 4a1, the respective values (control parameter data PD; for example, the settling maximum value in the method of (1)) are shared memory data setting / acquisition program module 25.
b, or by passing the control parameter data PD to the shared memory 21 or the management file PF by passing it to the file data setting / acquisition program module 25c (methods (1), (2), (5)), or A value (control parameter data PD) is acquired and returned to the remote terminal 4a1 ((methods (3), (4), (6)).

That is, the methods of the functions of the shared memory data setting / acquisition program module 25b and the file data setting / acquisition program module 25c are called by the above methods (1) to (6), and the memory (the shared memory 21 or the management The control parameter PD is set for the file PF or the memory (shared memory 2)
1 or control parameter P from management file PF)
Get D.

This method is in the class xmDB,
The method is as follows:

[0071]

[Outside 2] Each of the methods (7) and (8) is called from among the methods (1) to (6), and specifies the data structure and the data area as arguments to the physical memory (the shared memory 21, the management file PF). ), The control parameter PD is set / acquired at the position of the head address of the predetermined data.

Here, the data on the memory (shared memory 21, management file PF) is in the form of a structure,
For example, data in the control parameter management file PF for settling has the following format.

[0073]

[Outside 3] In this structure, the members are data, and (7),
The member is specified by the argument of (8).

As described above, according to the present embodiment,
It is possible to set control parameters related to a controlled device from a remote terminal through a data management device that also has a built-in distributed database function, and control the controlled device based on the control parameters. Since the computers can be distributed and the distributed monitoring and control computers can be controlled from a remote terminal, control according to each control target device can be easily performed.

Further, since the control contents (control parameters) from the remote terminal can be stored in the monitoring control computer, by referring to the stored control parameters,
The control history can be easily grasped, and control based on the same (same control parameter) can be repeatedly performed. As a result, control according to each control target device can be easily performed.

(Third Embodiment) A monitoring control system according to a third embodiment of the present invention is different from the second embodiment in the functional block configuration of the interface program in the second embodiment. Otherwise, the components are substantially the same as those of the monitoring control system 1A and the data management device 15a1 shown in FIGS. 3 and 4, and a description thereof will be omitted.

As shown in FIG. 5, the interface program 25 stored in the input / output unit 20 in the present embodiment
At least one program module (in the present embodiment, as an example, the remote terminal interface program module 25a) includes a plurality of methods (for example, the above-described methods MD (1) to MD (6), In FIG. 5, for simplicity of illustration, the methods MD (1) to MD (3) are used) (exclusive means) for preventing simultaneous access from the external remote terminal 4a1 via the network 3. Have. This exclusion means uses the Ja in the data management device 15a1.
This is specifically realized by the processing of the input / output unit 20 based on the exclusive program 27 described using a synchronized statement in the va language.

In FIG. 5, a class of the Java language interface program 25A held in the input / output unit 29 of the data management device 15a1 includes a method MD (1), a method MD
(2) and method MD (3). Each method M
D (1) to method MD (3) are described in the Java language, and method MD (1) to method MD (3) for setting the content of a certain control parameter PD1 are the same as those of the synchronous
It is locked by ed (exclusive means) 27.

Therefore, when an external remote terminal 4a1 accesses the control parameter PD1 stored in, for example, a memory (the shared memory 21 or the management file PF) via the method MD (1), the external Another method (MD (2), MD (3)) in the same program module 25a from another remote terminal (for example, 4a2)
, Access to the control parameter PD1 is invalidated, and updating of the content is prohibited.

According to the present embodiment, the exclusion of the interface program in module units, that is, the access of a plurality of methods in the same program module from a plurality of remote terminals and the simultaneous access of one data (control parameter) value. Since updating is prohibited, a plurality of accesses to the same program module can be avoided, and accurate control of the control target device can be performed.

(Fourth Embodiment) FIG. 6 is a diagram showing a schematic configuration of a supervisory control system 1B including a supervisory control computer incorporating a data management device according to a fourth embodiment of the present invention. . Components that are substantially the same as those of the monitoring control system 1A and the data management device 15a1 shown in FIGS. 3 and 4 are denoted by the same reference numerals, and description thereof will be omitted or simplified.

The data management device 30a according to the present embodiment
As shown in FIG. 6, the input / output unit 20B of each of the types (status data) determines which condition status data should be read from the interface program 35 and a plurality of real-time status data stored in the shared memory 21. And the acquisition condition management file CF described for each (type).

The acquisition condition management file CF includes, for example,
A value (for example, an upper limit value, a lower limit value, and the like) that determines an acquisition condition related to each state quantity (control voltage and the like) of the control target device S1 is described.

The interface program 35 is called directly from the remote terminal 4a1 and has a remote terminal interface section (program module) 35a for designating a predetermined type of status data in accordance with input data from the remote terminal 4a1; A shared memory data setting / acquisition unit (program module) 35b for acquiring status data corresponding to an acquisition condition from a plurality of real-time status data stored in the storage unit 21, and a status data designated by the remote terminal interface unit 35a. A file data setting / acquisition unit (program module) 35c for reading the acquisition condition of the state data corresponding to the type from the acquisition condition management file CF and passing it to the shared memory data setting / acquisition unit 35b.

That is, according to the present embodiment, for example,
A predetermined type of status data designated by the remote terminal interface unit 35a via the external remote terminal 4a1 is
It is passed to the file data setting / acquisition unit 35c. By the processing of the file data setting / acquisition unit 35c, the remote terminal 4
Based on the type of state data to be acquired specified from a1, the acquisition condition of the state data is read from the acquisition condition management file CF.

Assuming that the type of the designated state data is the control voltage of the control target device S1, the file data setting / acquisition unit 35c causes the acquisition condition management file CF to be acquired.
The corresponding acquisition conditions (upper limit and lower limit) are read from, and the read acquisition conditions are
It is sent to the acquisition unit 35b. Based on the shared memory data 35b, real-time state data (upper to lower limit voltage data) D in a range corresponding to the passed acquisition condition is read from the shared memory 21 and the remote terminal interface unit 3
Returned to 5a.

When the status data D is returned to the remote terminal interface unit 35a, the status data D is returned to the external remote terminal 4a1 via the general-purpose network 3 by the function of the remote terminal interface unit 35a.
As a result, in the remote terminal 4a1, only the data that satisfies the preset acquisition condition among the designated state data is acquired.

That is, according to the present embodiment, the acquisition condition management file is provided in each data management device, so that the real-time status data of the monitoring target device can be obtained from the real-time status data of the monitoring target device and set for each monitoring control computer. Since only necessary information (data) based on the condition can be extracted and acquired, monitoring control for each control target device can be performed very efficiently.

(Fifth Embodiment) FIG. 7 is a diagram showing a schematic configuration of a supervisory control system 1C including a supervisory control computer incorporating a data management device according to a fifth embodiment of the present invention. . The same components as those of the monitoring control system 1B and the data management device 30a1 shown in FIG. 6 are denoted by the same reference numerals, and description thereof will be omitted or simplified.

The data management device 40a in the present embodiment
1 as in the fourth embodiment, the interface program 35 and the acquisition condition management file CF.
And Similarly to the fourth embodiment, the acquisition condition management file CF describes, for example, values (for example, an upper limit value and a lower limit value) related to the acquisition condition of each state quantity (control voltage and the like) of the control target device S1. Have been.

The remote terminal interface section (program module) 35a1 of the interface program 35
Is a remote terminal 4 in addition to the functions described in the fourth embodiment.
a1) has a function of setting information for changing a condition for acquiring a predetermined type of status data in accordance with input data from a1. The file data setting / acquiring unit (program module) 35c1 is provided with a remote terminal interface. Part 35
A function is provided for changing the acquisition condition of the corresponding state data managed and stored in the acquisition condition management file CF based on the acquisition condition change information set by a1.

That is, according to the present embodiment, for example,
By the function of the remote terminal interface unit 35a1, the acquisition condition change information of the predetermined type of status data is transmitted to the remote terminal 4a.
1 and transmitted to the file data acquisition unit 35c1. In the file data acquisition unit 35c1, the function of the file data acquisition unit 35c1 is executed in accordance with the transmitted acquisition condition change information, and the acquisition condition of the corresponding state data in the acquisition condition management file CF is changed.

That is, assuming that the set acquisition condition change information is change information of the upper limit value and the lower limit value of the control voltage of the control target device S1, the file data acquisition unit 35c1
Reads the corresponding acquisition condition (upper limit and lower limit) from the acquisition condition management file CF, rewrites the read acquisition condition (upper limit and lower limit) to a new value, and stores it again in the acquisition condition management file CF. It is supposed to.

As described above, according to the present embodiment,
Since the contents of the acquisition condition management file held in the data management device can be changed, only the necessary information can be acquired from the real-time status data of the control target device. The conditions can be freely set, and more efficient monitoring control can be performed.

(Sixth Embodiment) FIG. 8 is a diagram showing a schematic configuration of a supervisory control system 1D including a supervisory control computer incorporating a data management device according to a sixth embodiment of the present invention. is there. Components that are substantially the same as those of the monitoring control systems 1A, 1B, and 1C and the data management devices 15a1, 30a1, and 40a1 shown in FIGS. 3, 6, and 7 are denoted by the same reference numerals. The description is omitted or simplified.

In FIG. 8, the data management device 45a1
Has a memory 46, which is a generic name of the shared memory 21 and a memory in which at least one of the control parameter management file PF and the acquisition condition management file CF is stored.

Then, the data management device 45 of this embodiment
a1 is a data structure unique to each data such as status data and control parameters stored in the memory 46, and a parameter for storing a head (head address) of a predetermined storage address (position address) of each data in the memory 46. By executing the data definition table creation program 48a when the management file 47 and the data management device 45a1 are started, the data structure and the head address of each data stored in the parameter management file 47 are read, and the data of each read data is read. A data definition table creation unit 48 for creating a data definition table T based on the structure and the start address.

According to the present embodiment, when data in the memory 46 is set / acquired from the external remote terminal 4a1 via the interface program 35, the interface program 35 (the input / output unit 20D that executes the interface program 35) From the data definition table T,
An address (position address, for example, a head address) of the data corresponding to the data acquisition instruction sent from the remote terminal 4a1 is read, and the data stored at the above-mentioned position address in the memory 46 is acquired. Via the remote terminal 4a1. The same applies when a data setting (change) instruction is received from the remote terminal 4a1. The position address of data corresponding to the instruction is read from the data definition table T and transmitted to the remote terminal 4a1.

That is, in the present embodiment, the position address of the data in the memory is read and read based on the data definition program created in advance without causing the interface program itself to directly handle the data structure and the data position address. Since the acquisition and setting of data are performed based on the position address, even if there is a change in the position address or data structure of each data in the memory 46, the interface program 35 is not affected. Absent.

Therefore, if there is a change in the data structure on the memory 46 or the position address of each data, it is only necessary to change the contents of the parameter management file 47, and there is no need to change the interface program 35. Software maintenance is easier.

(Seventh Embodiment) FIG. 9 is a diagram showing a schematic configuration of a supervisory control system 1E including a supervisory control computer incorporating a data management device according to a seventh embodiment of the present invention. is there. The same components as those of the monitoring control system 1B and the data management device 30a1 shown in FIG. 6 are denoted by the same reference numerals, and description thereof will be omitted or simplified.

According to FIG. 9, the data management device 50a1
Is provided with a screen database storage unit 51 embodied by a ROM, for example, as a means for storing a plurality of screen data to be displayed on the monitor of the remote terminal 4a1 in a database.

That is, the ROM constituting the screen database storage unit 51 stores, for example, H
A plurality of screen data files (for example, a voltage display screen, a current display screen,...) HF1, HF2,.

That is, according to the present embodiment, when real-time status data D is obtained from the external memory 4a1 via the interface program 35 from the shared memory 21, a display request is added in addition to the status data obtainment request. Is sent to the interface program 35, the file data acquisition unit 35c of the interface program 35 searches for a screen file corresponding to the state data to be acquired / displayed from the screen database storage unit 51.

The screen file corresponding to the state data to be obtained obtained by the search processing is transmitted to the remote terminal 4a1 via the network 3 by the processing of the file data obtaining section 35c.

By executing the browser function B1, the remote terminal 4a1 executes real-time status data obtained by executing the interface program 35 of the data management device 1E and status data based on the HTML file corresponding to the status data. Create a monitor control screen and display it on the monitor.

That is, according to the present embodiment, since the screen data file for displaying the status data corresponding to the device to be controlled is stored in the data management device of each monitoring and control computer, the status can be stored at each remote terminal. Since there is no need to hold screen data in the data, and a screen file for displaying the status data can be obtained together with the status data obtained for each monitoring control computer, the data installed on the remote terminal The amount can be reduced. As a result, there is no need to use a high-cost computer capable of storing a large amount of screen files as a remote terminal, and the cost of the data management device and the computer for monitoring and control incorporating this data management device can be reduced.

(Eighth Embodiment) FIG. 10 is a diagram showing a schematic configuration of a supervisory control system 1F including a supervisory control computer incorporating a data management device according to an eighth embodiment of the present invention. It is. Components that are substantially the same as those of the monitoring control system 1D and the data management device 45a1 shown in FIG. 8 are given the same reference numerals, and descriptions thereof are omitted or simplified.

In FIG. 10, the data management device 55a1
The data 56 such as state data and control parameters on the memory 46 (see FIG. 8) is, for example, a structure of a C language type, and data is stored as a member 57 inside the structure. The parameter management file 47 contains
Information such as the position address (head address) of the structure and the member is described.

For example, in the example of FIG. 10, the head address of the structure is XX, the head address of the member 1 is YY, and the head address of the member 2 is ZZ.

Then, the data definition table creating section 48
Executes the data definition table creation program 48a to create a data definition table T as data definition means based on the position address information.

At this time, the data definition table creating means 4
In the data definition table T created in step 8, the class structure of the class of the Java language type data is described as a class, and the address and the size of the class are described in the Java language type. Etc. are described.

According to the present embodiment, when the data on the memory 46 is set / acquired from the external remote terminal 4a1 via the interface program 35 described in the Java language, the interface program 35 (this interface program 35 The executing input / output unit 20D) acquires the data of the corresponding class member on the memory 46 based on the class definition table T1 and the member definition table T2 included in the created data definition table T, and executes the external network. 3 to the remote terminal 4a1.

That is, in the present embodiment, the data definition table is created by the parameter management file and the data definition table creation program, so that when the data in the memory is in the C language format, it differs from the C language format. State data can be set and obtained by an interface program using the Java language.

Therefore, even if the language of the data description language and the language of the interface program are different, the data can be operated from the remote terminal, and even if the languages do not match, it is not necessary to modify the interface program.

(Ninth Embodiment) FIG. 11 is a diagram showing a schematic configuration of a supervisory control system 1G including a supervisory control computer incorporating a data management device according to a ninth embodiment of the present invention. is there. Note that components that are substantially the same as those of the monitoring control system 1 and the data management device 5a1 shown in FIG. 2 are given the same reference numerals, and descriptions thereof are omitted or simplified.

The input / output unit 61 of the data management device 60a1 of this embodiment includes a remote terminal management file 62 for managing remote terminals to which access is permitted (possible) and a remote terminal management file 62 for remote terminals 4a1 and 4a2 as security means for each terminal. An IP address discriminator 63 for discriminating an address (IP address) is provided. The security ensuring means for each operator (operator) determines whether or not the operator is a person who is permitted to use the remote terminal. And a card-type recognition device 64 for recognizing based on the ID card on which the use permission information is recorded.

The remote terminals (two remote terminals in FIG. 10) 4a1 and 4a2 each have an IP address, and the remote terminal management file 62 of the data management device 60a1 has its data management mechanism. The IP address of the remote terminal accessible to 60a1 is stored.

When accessing the data management device 60a1 from each of the remote terminals 4a1, 4a2, each of the remote terminals 4a1, 4a1,
4a2, an IP address is transmitted. On the data management device 60a1 side, the IP address discrimination unit 63 compares whether the transmitted IP address is an accessible IP address stored in the remote terminal management file 62,
If the IP address is accessible, the access is permitted.

For example, in the example of FIG. 11, the remote terminal 4a1
The IP address assigned to is XXXX,
The IP address assigned to the remote terminal 4a2 is Y
YYY.

Since the remote terminal management file 61 of the data management mechanism device 60a1 can access both XXXX and YYYY, the IP address discriminating section 63 determines that both the remote terminals 4a1 and 4a2 can access the data management device 60a1. Determine.

On the other hand, when activating each of the remote terminals 4a1 and 4a2, the remote terminal user (operator) inserts an ID card into the card type recognition device 63, and the card recognition device 63
Whether or not the user is a remote terminal user is determined based on whether or not the use permission information is recorded on the D card.

That is, according to the present embodiment, it is possible to manage the remote terminals that can access the data management device for each data management device, and it is possible to access only from the remote terminals that have been permitted access. Will be possible.
Further, only the authorized operator (operator) can use the remote terminal.

Therefore, it is impossible to access each data management device from a terminal or an operator who is not permitted to access, thereby improving security.

(Tenth Embodiment) FIG. 12 is a diagram showing a schematic configuration of a supervisory control system 1H including a supervisory control computer incorporating a data management device according to a tenth embodiment of the present invention. is there. Note that components that are substantially the same as those of the monitoring control system 1 and the data management device 5a1 shown in FIG. 2 are given the same reference numerals, and descriptions thereof are omitted or simplified.

According to the present embodiment, the data management devices 5a1 and 5a2 incorporated in the plurality of monitoring control computers 2a1 and 2a2 respectively have the time receivers 70 as precision time acquisition means. Receiver 70
Receives a time signal transmitted and output from the time transmission source 71 to obtain an accurate time (precision time) having a predetermined accuracy. As shown in FIG. 12, as the time transmission source 71, a plurality of artificial satellites for GPS, a terrestrial transmission source, a time signal source of a TV station, and the like can be considered. When selecting the time source 71, it is desirable to select the time source 71 according to the required accuracy of the device to be controlled. For example, when monitoring and controlling equipment in a power system, an accuracy of about 1 μs is required. Therefore, the plurality of GPS artificial satellites having absolute time accuracy are used as the time transmission source 7.
It is desirable to select as 1.

The data processing unit 10 of each of the data management devices 5a1 and 5a2 adds the precise time received by the time receiver 70 to the status data obtained from the corresponding control target devices S1 and S2, Each of them is stored in the shared memory 11 as state data with time.

For example, the state data (for example, voltage amount; voltage data) of the control target devices S1 and S2 obtained by the data processing unit 10, respectively, are added to the same precise time and are stored in the shared memory 11 in time series. Stored as data.

At this time, each data management device 5a described above
FIG. 13 shows an example in which the state data (voltage data) with precise time stored in the data storage unit 11 of 1 and 5a2 are displayed on the remote terminal 4a1 in association with each other.

As shown in FIG. 13, since the precise time is added to the status data obtained by the different data management devices, it is possible to easily compare the status data accurately in time series. , The efficiency of monitoring and control, and the reliability can be improved.

[0131]

As described above, according to the present invention, from a general-purpose remote terminal such as a personal computer to a plurality of monitoring control computers installed for each control target device via a general-purpose network such as the Internet. It is possible to directly access the built-in data management device, acquire the status data of the control target device stored in the data management device, and set / change the control parameters. Control can be performed quickly and flexibly.

Further, according to the present invention, in each monitoring control computer, a precise time is added to the real-time state data of the corresponding control target device and stored, so that accurate information on a plurality of control target devices can be obtained. Time series state data can be easily compared and examined, and the efficiency and reliability of monitoring control can be improved.

Further, according to the present invention, the processing execution software (program) conventionally concentrated on the central computer is distributed and mounted on each monitoring and control computer, so that the expansion and modification of the hardware and software can be performed. This can be easily performed, and the maintainability of the program can be improved.

According to the present invention, since a large-capacity monitoring operation screen conventionally mounted on a remote terminal can be mounted on each monitoring control computer, the amount of data stored in the terminal can be reduced. It is possible to reduce the cost of the terminal.

Further, according to the present invention, each monitoring control computer of the monitoring control system is provided with a function of managing terminals that can access the monitoring control computer.
Only terminals to which access is permitted can access the monitoring control computer, and data access security can be ensured with high reliability.

[Brief description of the drawings]

FIG. 1 is a diagram showing a basic configuration of a supervisory control computer embedded data management device according to the present invention and a supervisory control system composed of a supervisory control computer incorporating the supervisory control computer.

FIG. 2 is a block diagram functionally showing a schematic configuration of a supervisory control system including a supervisory control computer in which the supervisory control computer embedded data management device according to the first embodiment of the present invention is incorporated. .

FIG. 3 is a block diagram functionally showing a schematic configuration of a supervisory control system including a supervisory control computer in which a data management device according to a second embodiment of the present invention is incorporated.

FIG. 4 is a diagram showing a detailed functional block configuration of an input / output unit of a data management device according to a second embodiment.

FIG. 5 is a diagram showing a functional configuration of an interface program according to a third embodiment of the present invention.

FIG. 6 is a block diagram functionally showing a schematic configuration of a supervisory control system including a supervisory control computer incorporating a data management device according to a fourth embodiment of the present invention.

FIG. 7 is a block diagram functionally showing a schematic configuration of a supervisory control system including a supervisory control computer in which a data management device according to a fifth embodiment of the present invention is incorporated.

FIG. 8 is a block diagram functionally showing a schematic configuration of a supervisory control system including a supervisory control computer in which a data management device according to a sixth embodiment of the present invention is incorporated.

FIG. 9 is a block diagram functionally showing a schematic configuration of a supervisory control system including a supervisory control computer incorporating a data management device according to a seventh embodiment of the present invention.

FIG. 10 is a diagram functionally showing a schematic configuration of a supervisory control system including a supervisory control computer incorporating a data management device according to an eighth embodiment of the present invention.

FIG. 11 is a diagram functionally showing a schematic configuration of a supervisory control system including a supervisory control computer incorporating a data management device according to a ninth embodiment of the present invention.

FIG. 12 is a diagram functionally showing a schematic configuration of a supervisory control system including a supervisory control computer incorporating a data management device according to a tenth embodiment of the present invention.

FIG. 13 is a diagram showing an example in which state data with precise time obtained by a plurality of monitoring control computers are displayed on a remote terminal in association with each other.

FIG. 14 is a block diagram functionally showing the entire configuration of a conventional monitoring and control system.

[Explanation of symbols]

1, 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H
Monitoring / control system 2a1, 2a2 Monitoring / control computer 3 General-purpose network 4a1, 4a2 Remote terminal 5a1, 5a2, 15a1, 30a1, 40a1, 45
a1, 50a1, 55a1, 60a1 Computer-managed data management device for monitoring and control 10, 22 Data processing unit 11, 21, Shared memory 12, 20, 20B, 20C, 61 Input / output unit 25, 25A, 35 Interface program 25a, 35a Remote terminal interface unit 25b, 35b Shared memory data setting / acquisition unit 25c, 35c File data setting / acquisition unit 27 Exclusive program 35b Shared memory data setting / acquisition unit 46 Memory 47 Parameter management file 48 Data definition table creation unit 48a Data definition table Creation program 51 Screen database storage unit 57 Member 62 Remote terminal management file 63 IP address determination unit 70 Time receiver 71 Time source S1, S2 Control target equipment / device B1 Browser function PD Control parameter P The control parameter managing file CF acquiring condition management file T data definition table T1 class definition table T2 member definition table HF1, HF2 screen data file

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Katsuhiko Sekiguchi 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Toshiba Fuchu Plant, Inc. (72) Inventor Yoshihiro Koizumi 1-Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu Plant, Toshiba F Terms (reference) 5B089 GA01 GA21 GB02 GB04 HA10 JA21 JA35 JB16 KA13 LB04 LB14 5H215 AA01 BB09 CC09 CX01 CX05 GG05 GG09 HH03 KK03 5H223 AA01 BB01 CC08 DD03 DD07 EE06 9A001 CC08 DD05 JJ05 KK31 K55

Claims (11)

[Claims] 1. A plurality of monitoring control computers arranged for each device to monitor and control the states of a plurality of devices to be monitored and controlled, and a plurality of monitoring control computers via a communication network. An embedded data management device incorporated and used in each of the monitoring control computers in the monitoring control system including a terminal communicably connected, acquires status data representing a real-time status of a corresponding control target device. Data acquisition means, a data storage means for storing status data acquired by the data acquisition means, and a status data transmission request transmitted from the terminal via the communication network, in response to the transmission request. Data output means for reading status data from the data storage means and outputting the status data to the terminal via the communication network. For monitoring and control, characterized in that had example computer sets write type data management device. A control parameter for performing the predetermined control on the control target device based on data relating to a predetermined control content for the control target device input from the terminal; And a control parameter storing means for storing the control parameters set by the control parameter setting means, wherein the control parameter setting means sets the control parameters. apparatus. 3. The control parameter setting means has a first program module for setting the control parameter, and the first program module is set in accordance with data relating to the predetermined control content input from the terminal. The control parameter storage means has a file for the control parameter management and storage and a second program module for the control parameter storage processing, 3. The monitoring control computer-incorporated data according to claim 2, wherein the set control parameters are stored in the control parameter management / storage file by executing a second program module. Management device. 4. When there are a plurality of terminals, and when the first program module is simultaneously accessed from the plurality of terminals to update the control parameters, access from one of the terminals is invalidated. 4. The monitoring-controlling computer-integrated data management apparatus according to claim 3, further comprising: 5. An acquisition condition holding unit for holding an acquisition condition for each state data of the corresponding control target device in advance, wherein the data output unit includes an acquisition condition for each state data held in the acquisition condition holding unit. By reading the acquisition condition of the status data corresponding to the status data transmission request transmitted from the terminal via the communication network, and reading the status data corresponding to the transmission request stored in the data storage unit The apparatus according to any one of claims 1 to 4, further comprising means for selecting and reading out only data corresponding to the acquisition condition from among the data, and outputting the selected data to the terminal via the communication network. Computer-managed data management device for monitoring and control. 6. A condition changing unit for changing an acquisition condition of the corresponding state data held in the acquisition condition holding unit based on the acquisition condition change information of the state data transmitted from the terminal via the communication network. The computer-managed data management device for monitoring control according to claim 5, further comprising: 7. When the status data of the control target device stored in the data storage means has a position address on the data storage means and has a unique structure, the position address and data of each state data are provided. Holding means for holding a structure in advance, wherein the data output means reads a position address of state data corresponding to the state data transmission request from the holding means, and stores the position address in the data storage means at the read position address. 2. The apparatus according to claim 1, wherein status data is read from said data storage means and output to said terminal via said communication network.
7. The monitoring-controlling computer-incorporated data management device according to any one of Items 6 to 6. 8. A screen file holding means for holding a plurality of monitor operation screen files corresponding to a plurality of status data, wherein the data output means transmits the status data transmitted from the terminal via the communication network. The monitoring operation screen corresponding to the status data requested to be displayed is extracted and read out from the monitoring operation screens held in the screen file holding means on the basis of the display request, and the read monitoring operation screen is read by the communication. 8. A device according to claim 1, further comprising means for outputting to said terminal via a network.
The computer management type data management device for monitoring control described in the paragraph. 9. A program language for describing a structure of status data stored in said data storage means, and status data is obtained and output to said terminal based on a status data transmission request transmitted from said terminal. And a storage means for storing in advance a table in which a position address of a parameter defining a data structure of the state data is defined in the state data output program language format when the program language is different from the program language. By executing the status data output program, a position address of the status data corresponding to the status data transmission request is read from the holding unit, and the status data stored at the read position address in the data storage unit is read. Read from the data storage means and Monitoring the control computer sets write type data management apparatus according to any one of claims 1 to 6 and 8, characterized in that it outputs to the end. 10. The apparatus according to claim 1, further comprising: an access permission setting unit configured to set in advance for each terminal whether or not access to the data input / output unit is permitted for the plurality of terminals. The means reads status data corresponding to the transmission request from the data storage means only when a status data transmission request is transmitted from the terminal to which access permission is set via the communication network, and reads the status data via the communication network. And outputting the data to the terminal.
The monitoring-controlling computer-embedded data management device according to any one of the above items. 11. A precise time obtaining means for obtaining a precise time, wherein the data storage means adds the precise time obtained by the precise time obtaining means to state data obtained by the data obtaining means. 11. The monitoring-controlling computer-incorporated data management apparatus according to claim 1, wherein the data is stored as state data with precise time.