JP2002374616A - Development method for protecting relay software - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for developing software for protecting relay which reduces the probability of occurrence of errors due to modification of programs, and which is reliable and superior in workability. SOLUTION: The method for developing software is for a human interface portion, which is mounted on a protective relay system for detecting accidents in a power system and protecting the power system, and is provided with the function of indicating various settings on and of the state of the relay system on a display screen. Various types of data, including on-screen display classifying information, character information, and numeric value information, for use in programs for driving the human interface portion is stored in a database. Based on the data stored in the database, programs and a collection of human interface screens are generated automatically. As a result, wrong entry of data during operation is prevented, and the reliability of the relay system is enhanced. Further, due to automatic generation, efficiency of manufacturing is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for creating software, and more particularly to a method for creating software in a human interface section of a protective relay for detecting an accident in a power system and protecting the system.

[0002]

2. Description of the Related Art Various states of a power system to be protected are taken in, protection relay arithmetic processing is performed at predetermined intervals by a plurality of arithmetic processing boards in accordance with a predetermined processing procedure, and the power system is protected based on the result. In a protective relay device that outputs a command, a so-called digital type protective relay device in which an arithmetic processing unit is configured by a digital processor has become mainstream. In particular, with the rapid improvement in performance of microcomputers in recent years, digital type protective relay devices equipped with such microcomputers are increasing.

[0003] Such a digital protection relay device has various functions such as various settings for the device and a status display of the device through a display screen mounted on the device.
A so-called human interface unit is provided. In designing a new protective relay device, software development of the human interface unit is also performed.

[0004] Here, an example of a software development procedure of the human interface unit in the prior art is shown in FIG. 10 of the accompanying drawings. In the development, first, a screen type to be displayed on the display of the human interface unit is determined (display screen step 21). In addition, attached FIG.
FIG. 4 shows an example of a setting screen (setting submenu) which is a typical screen for setting the apparatus. FIG. 4 is a diagram showing an operation state display screen which is a typical screen for displaying the state of the apparatus. 7 shows an example of a (test control submenu). That is, the screen to be displayed on the display of the human interface unit is determined by actually determining the screen to be displayed on the display from the screen including these.

Next, character information to be displayed on the screen is determined (step 22). For example, a portion indicated by a broken line portion 31 in FIG. 3 and a portion indicated by a broken line portion 41 in FIG. 12 are determined. Then, together with the creation of the product program, a collection of human interface screens showing the entire screen displayed on the display is created based on the display information so far. The work of creating the human interface screen collection is performed by a CAD input by a human.

Returning to FIG. 10 again, in creating a product program, first, numerical information of each setting item is determined (step 23). This numerical information is to determine the maximum value, the minimum value, the numerical value change range, and the like for the value of the portion indicated by the broken line portion 32 in FIG. Next, a program production specification is created based on the determined data (step 24), and a person in charge creates a human interface program from the specification (step 26). Complete. On the other hand, in creating a human interface screen book, a screen book creation instruction is created (step 25), and then the created screen book is CAD-input (step 27), thereby completing the human interface screen book.

Hereinafter, a program production specification (prepared in step 24), which is information for a program, and a screen collection creation instruction (prepared in step 25), which is information for screen collection,
Each will be managed individually. The above-described conventional technique is already known, for example, from Japanese Patent Application Laid-Open No. 5-68319.

[0008] Further, with the recent high performance of microcomputers, the number of programs mounted on the microcomputers has been increasing. The same applies to the protective relay device according to the present invention, and the screen information, character information, numerical value information, and the like for the program of the human interface unit also tend to increase.

[0009]

However, in the prior art described in detail above, as described above, the information for the program and the information for the screen collection are separately managed. There is a problem that management requires useless labor.

For example, considering the case where the display characters are changed in step 22 of FIG. 10, first, the program production specification in step 24 is corrected, and further, the screen collection creation instruction in step 25 is changed. I have to fix it. This means that the probability of occurrence of a mistake (error) during the correction operation increases, and therefore, there is a problem that the reliability is lowered.

[0011] As another problem, as described above, programs mounted on microcomputers have been increasing with the recent increase in the performance of microcomputers, and the same applies to protective relay devices. The contents of screen information, character information, numerical information, and the like for programs in the human interface unit also tend to increase.
Therefore, program creation by a human (Step 26 above) or drawing drawing by CAD input (Step 2 above)
In 7), more time is required, which causes a problem in workability.

In view of the above, the present invention solves the above-mentioned problems in the prior art, that is, it reduces the probability of making a mistake due to modification of a program production specification, and has high reliability and high workability. Another object of the present invention is to provide a method of creating software for a protective relay device which is excellent in terms of the above.

[0013]

In order to achieve the above-mentioned object, the present invention first provides various state quantities of a power system, and performs a predetermined period according to a processing procedure predetermined by an arithmetic processing board. In a protection relay device that performs a protection relay calculation process for each device and outputs a protection command to the power system based on the result, various settings for the device and status display thereof are included through a display screen mounted on the device. A method for creating software for a human interface unit having a function, at least a display screen type information used in a program for driving the human interface unit, text information,
This is a method for creating software for a protection relay device, which converts data including numerical information into a database and automatically generates the data based on the data in the database.

Further, according to the present invention, in the above-mentioned software creation method, a human interface screen collection in which a screen displayed on a display screen constituting the human interface section is automatically drawn from the data in the database. You may make it generate | occur | produce. In particular, it is preferable that the input screen for creating the database simulates a screen displayed on a display screen of the human interface unit.

[0015]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

First, an outline of a digital relay according to the present invention will be briefly described with reference to FIG.
In the figure, reference numeral 50 denotes a power transmission line of a power system to be protected, and a current transformer / voltage information 52 is transmitted from an instrument transformer 51 installed on the power transmission line to the protection relay device 5.
Take in 3. After that, the protection relay arithmetic processing is performed at regular intervals by a plurality of performance processing boards mounted on the protection relay device 53 in accordance with a predetermined processing procedure. The protection command 53a is output to the device 54.

Next, FIG. 3 shows each processing in the digital relay (protection relay device 53). That is,
The inside of the digital relay is roughly divided into an analog input section 60, a Ry section 61, a SEQ section 62, and a human interface section 63, each of which is configured by a processing board on which a microcomputer is mounted. In such a configuration, input information such as current and voltage from the power system described above is first input to the analog input unit 60, where it is converted into a digital signal. Thereafter, the Ry unit 61 determines a system fault based on the converted digital signal.
After satisfying various conditions in the EQ unit 62, a protection command to the circuit breaker 54 is output. In the human interface unit 63, various settings (arrows 3a, 63a and 63a in FIG.
b) or display of input values converted into digital signals, as represented by an operation status display screen (arrows in FIG. 3,
60a), and various states are displayed from the SEQ unit 62 (arrows 62a in FIG. 3).

The software creation method of the present invention is applied to a program for performing the above-described processing of the human interface unit.

In the present invention, a human interface processing program is automatically created using a database.
The flow of human interface software development
It is shown in the attached FIG. Here, as an example,
A case where the setting screen is created will be described.

First, a screen to be displayed on the display is determined (step 71). For example, as shown in FIG. 4, a screen to be displayed can be selected by using a check box (management screen) that can be displayed on the display of the apparatus and that hierarchically represents all the screens. Is determined.

Next, text information to be displayed on each screen is determined (step 72). Here, for example, as shown in FIG. 5, an arbitrary character string (M primary reference current... M primary CT ratio...) Is input to each input location. The input screen has a configuration simulating a screen displayed on an actual display in order to prevent an input error. Up to this point, the method is the same as the above-described method in the related art.

Next, numerical information is input (step 7).
3). This is performed by, for example, an input screen for numerical information on the settling screen as shown in FIG. That is, on this settling screen, the maximum value, the minimum value, the numerical value change width (the number of steps), and the like of the set values are input.

In the present invention, by repeating these series of operations, various kinds of information necessary for the human interface program are input to the database.
Thereafter, the data stored in these databases enables the automatic generation of a human interface section program (product program) and a collection of human interface screens.

Next, details of the automatic generation will be described. FIG. 7 attached herewith shows a flow of automatic generation of the human interface section program.

In the automatic generation of the program, as is apparent from the figure, the program of the human interface section (human interface program) to be generated is processed by (1) processing when a button is pressed, screen transition processing, and the like. A described program core unit (11a);
(2) The structure is divided into a program data section (11b) composed of display screen information, display content information (character information, numerical information) and the like. Then, the various data (11c) stored and made into a database as described above is converted into the form of this data part (the structure composed of the above (1) and (2)). Thereafter, the program data section and the program core section automatically generated as described above are combined to complete a program for human interface.

More specifically, in the example of the settling screen, a display name, which is data stored in the database,
The maximum value, the minimum value, and the change width are automatically generated by the character code or the form determined by the program (11b in the figure, DATA 8
78FDATA 0005 ...). This data conversion, in this example, is a known technique, Windows (registered trademark).
This is done by using the application development language, however, other application development languages may be used if necessary conversions are possible.

FIG. 8 shows the flow of automatic generation of a human interface screen collection. In the automatic generation of the human interface screen collection, first, components (12a, 12b and the like in the drawing) constituting the screen collection registered in advance are prepared by a graphics application, and these components are appropriately designated. Then, only necessary data is selected and arranged from the database 12c (11c in FIG. 7). In the above example of the setting screen, only the text information is placed on the screen collection,
Since no numerical information is needed, no data manipulation is performed.

As described above, in the method of creating software for a digital protection relay according to the present invention, as shown in FIG. 9, a program for a human interface unit having a function of displaying various screens operated by a human. When creating, create a database for all information. Thereafter, various documents and data such as a program list, a screen book, and simulation data are automatically generated from the various data in the database.

That is, for example, in the above-mentioned software device for protection relay device including a personal computer or the like, by inputting various kinds of information of the human interface program of the protection relay device on the database input screen 10, the information can be obtained. Create a database. As an input screen for creating this database, it is preferable to simulate a screen displayed on the display screen of the human interface unit from the viewpoint of workability and the like. It is preferred to carry out at.

After the input of various types of information (database), all the documents related to the human interface are managed centrally by the database 10. The products from the database 10 include the program unit (human interface program) 11, the human interface screens 12, the simulation data 13, and the like. It should be noted that the human interface program 11 can be combined with a standard program and configured to be a human interface program.

Further, the automatic generation of the human interface screen collection 12 can be realized by automatically drawing the human interface screen on commercially available package software. In the automatic generation of the simulation data 13, the data is converted into a simulation data structure and used on a simulation program.

The automatic generation methods have been described above. However, since these are all generated from the same data, there is no need to manage them individually. It is not necessary to correct the data managed for each of them, and it is possible to correct only the common database. As a result, mistakes such as inconsistency of data can be prevented, and furthermore, the portion where human work is performed is reduced as much as possible by automatic generation, thereby improving reliability.

That is, according to the method for creating software for a protective relay device according to the present invention, various data and documents can be automatically generated. The reliability of each product can be improved as compared with the case where the individual products are individually created. In addition, by centrally managing the original data in this way, it is possible to ensure data consistency between the products, thereby improving the reliability of the protective relay device operated. . In addition, since a plurality of products can be produced at once, the production efficiency can be improved.

[0034]

As described in detail above, according to the present invention, in a method for creating software for a protection relay device, data necessary for the creation is centrally managed by putting it into a database, and a program for a necessary program is created. By automatically generating data and screens, data input errors can be prevented, and the reliability of a device equipped with the software can be improved, and the automatic generation can improve the production efficiency. Demonstrate.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a flow of an operation for creating a program and a screen collection of a human interface unit by employing a software creation method of a protection relay device according to the present invention.

FIG. 2 is a diagram illustrating a schematic configuration of a digital protection relay device according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of a configuration for internal processing in the digital protection relay device shown in FIG. 2;

FIG. 4 is a view showing an example of a display screen selection screen of a database input screen in the software creation method of FIG. 1;

FIG. 5 is a view showing an example of a character information input screen of a setting screen of a database input screen in the software creation method of FIG. 1;

FIG. 6 is a diagram showing an example of a numerical value information input screen of a setting screen of a database input screen in the software creation method of FIG. 1;

FIG. 7 is a diagram showing a flow in the automatic program generation of the human interface unit.

FIG. 8 is a diagram showing a flow of the automatic generation of the human interface screen collection.

FIG. 9 is a diagram showing automatic generation from a database input screen in the above software creation method.

FIG. 10 is a diagram showing an example of a flow of creating a human interface unit program and a screen book in the related art.

FIG. 11 is a diagram showing an example of a setting screen in the above-described conventional technique.

FIG. 12 is a diagram showing an example of an operation status display screen according to the above-mentioned conventional technology.

[Explanation of symbols]

 Reference Signs List 10 Database input screen 11 Human interface section program 11a Program core section 11b Program data section 11c Data in database 12 Human interface screen collection 12a Settling screen outer frame part 12b Setting screen character frame part 12c Data in database 50 Transmission line 51 Instrument transformation Switch 52 Current information / voltage information 53 Digital protective relay 54 Circuit breaker 60 Analog input unit 61 Ry unit 62 SEQ unit 63 Human interface unit 71 Display screen determination work 72 Display text determination work 73 Numerical information determination work

Claims (3)

[Claims] An operation processing board performs protection relay arithmetic processing at regular intervals according to a predetermined processing procedure, and outputs a protection command to the electric power system based on the result. In a protective relay device, through a display screen mounted on the device, a method for creating software for a human interface unit having a function including various settings for the device and a status display thereof, at least the human interface unit Software for a protective relay device, characterized in that data including display screen type information, text information, and numerical information used in a program for driving a computer is created in a database, and automatically generated based on the data in the database. Method. 2. The software creation method according to claim 1, wherein:
A method for creating software for a protective relay device, wherein a human interface screen collection in which a screen displayed on a display screen constituting the human interface unit is drawn is automatically generated. 3. The software creation method according to claim 1, wherein the input screen for creating the database simulates a screen displayed on a display screen of the human interface unit. Software creation method of protection relay device.