JP2023024047A - Computer screen operation method - Google Patents

Abstract

To provide a facility operation method that adds a function of determining the propriety of screen input operation without modifying an application, and a browser screen operation method.SOLUTION: A facility operation support function, which safely operates a computer screen for a safety measure function for commercial transaction, facility operation and the like for various businesses performed with computers, determines whether operation is appropriate or not before operating the screen, to explicitly display operation prohibition on a monitor when an inappropriate operation is attempted, and forcibly excludes the corresponding screen input operation. It is also applied when an unqualified operator tries to perform screen input operation related to an important matter. Here, these functions are retrofitted.SELECTED DRAWING: Figure 1

Description

Facilities and equipment used in so-called industrial fields (hereinafter referred to as "equipment"), including facilities used in consumer buildings and factories, as well as public infrastructure such as transportation and electric power, require monitoring of operating conditions and operation. A computer equipped with facility monitoring and control functions is used for efficient implementation.

On the other hand, computers are also used in the field of disclosing or notifying information with an information distribution device called a Web server via a communication network for the purpose of commercial transactions or communication. Here, the operator interacts with the computer using the screen. The present invention relates to a method of providing secure interaction for an operator interacting with a computer.

The equipment operation computer has a function of exchanging information with the equipment and managing the monitoring and control of the equipment. Alternatively, a computer that handles information delivered from an information delivery device such as a web server is provided with a function called a browser that exchanges information with the web server. Here, the information acquired by the computer is displayed on the screen display device, and the operator determines the contents displayed on the screen by himself and uses the screen input function to input the necessary information for response and notification. A mechanism is adopted in which a conversation with a computer or the like is performed by a method of performing

Patent application 2013-193522

First, the challenges of computers for industrial facilities are described. That is, on the screen display device of this computer, the information necessary for the operation of the equipment, such as the electric energy of the power supply equipment and the temperature of the air conditioning equipment, is displayed, and the start or stop of the equipment is specified. A symbol having an input function in the form of a button is displayed to allow the operation to be performed, and a space for inputting characters and numerical values for changing operation target values is displayed.

The operator visually confirms the equipment status displayed on the screen, selects buttons to start or stop the equipment, and performs equipment operation by inputting numerical operation target values. do.
However, in many cases, these computers have functions for operating equipment such as monitoring the condition of the target equipment and setting control for operators who have a certain assumed operating skill, so-called familiar operators. In some cases, there is a risk that a beginner or the like with a low level of knowledge may allow an erroneous equipment operation.

Moreover, even a well-versed operator may not always be in a state of being able to operate correctly. In such a case, a safety function to prevent erroneous operation is required. For example, assume that there are redundant power supply facilities and that the computer has a function to stop each of these power supply facilities.

Here, when introducing an operation function that allows the operation to stop one machine while both machines are running, but does not easily allow the operation to stop the second machine while the first machine is stopped, the latter state Therefore, in addition to providing a strict check function for the stop operation, a function that allows only qualified personnel to operate is required.

There may be an attempt to restrict the operation of critical equipment by unqualified operators, whether skilled or not. Here, it is required to add a function that enables equipment operation according to the operator's qualification.

On the other hand, the computer is equipped with a program called an application (hereinafter referred to as an application) responsible for facility monitoring and control, which captures facility information and displays it on the display device, and operates in response to the operator's screen input operation information. It displays the equipment status on the display device using symbols and messages so that operators can grasp the equipment status, and has a function to execute equipment setting control based on the operation of the operator. .

In many cases, when computers are first introduced, the application is equipped with basic functions for equipment operation, but safety functions such as erroneous operation prevention according to the actual equipment operation at each operation site are not provided. a lot of cases. For this reason, conventionally, a method has been adopted in which the function of the application is modified to add a function to prevent erroneous operation or restrict operation for the operator.

However, it is difficult to modify the functions of an application without the involvement of specific engineers who have been involved in the development of the application. In addition, it is not easy to secure such engineers, and as a result, it is difficult to realize the above countermeasures in a short period of time and at a low cost.

For the smooth introduction of safety measures, there is a method to provide an operation support function to add a function to restrict the operation of the computer screen related to equipment operation and a message display to alert operators without modifying the application. is a challenge.

Next, problems of computers used for exchanging information through communication for purposes such as commercial transactions and communication will be described. That is, a support function for safe operation is required here. For example, there is a demand for a function to prevent leaks of important information such as passwords for operators who are shown wrong website screens against their intentions, so-called phishing scams.

Here too, a program called a browser that displays a Web screen built into a computer is a general-purpose function, and it is difficult to modify the function according to individual circumstances of the operator. Therefore, it is a problem to realize a method of providing an operation support function to add a function to eliminate unsafe browser screen operations and display a message to alert operators without modifying the browser.

Computer applications and browsers (hereinafter referred to as "applications, etc.") have a function to generate image data that constitutes the screen and display it on the screen in order to notify the operator of the equipment status and information of the web server. . In the operation support function that constitutes the present invention, image analysis is performed using data for screen display (referred to as image data) generated by an application or the like, and image data for operations deemed unsafe is included in the display screen. In such a case, restrictions are placed on the operator's screen input operations, and a message is generated to call the operator's attention.

A function for selecting either exclusion or permission of screen input operation is provided in the operation support function for specific operation symbols and character strings included in image data. In addition, a more convenient function is provided by permitting equipment operation only to those who satisfy certain conditions, such as qualified persons.

INDUSTRIAL APPLICABILITY The present invention enables an operator to easily add a support function for screen operation without modifying an application or the like. It is possible to expect an effect that it can be introduced in a short time and at a low cost without the involvement of a specific engineer who has been involved in development for modification of an application or the like.

An example for industrial installations is shown in FIG. Application (1), image data file (2), image signal generator (3), display device (4), screen input function (5), equipment (6), equipment operation support function (7), equipment operation condition table (8) consists of

First, a known operation will be described. The application (1) captures the binary state indicating the start or stop of the facility (6) and the state value indicated by the numerical value such as the temperature, and the on/off state of the facility is called a bitmap representing a symbol with a predetermined unique shape. Converted to image data.

The numeric data is converted to bitmap image data representing a string of numbers and decimal points in decimal format. These image data are stored in the image data file (2). An image signal generator (3) reads the image data file (2) and generates an image signal in a format conforming to the so-called VESA standard such as VGA and DVI.

Based on the image signal, the display device (4) notifies the operator of the state of the equipment (6) by means of screen display. Signals in formats that do not comply with the VESA standard may be used, but any format is acceptable in the present invention.

The present invention includes an equipment operation condition table (8) and an equipment operation support function (7), and the equipment operation condition table (8) includes screen display symbols used for equipment setting operations related to a plurality of operation target equipment. , the image data for matching each shape data and determining the match and the information indicating the range in which the operation is prohibited are described in association with each other. That is, the equipment operation condition table (8) includes image data for specifying the symbol, the range of screen input operation prohibition, qualification information and cautions for permitting operation for each symbol for equipment operation to be prohibited. Define a message for the reminder. At the same time, it is defined whether or not to display the input prohibited area on the display screen and whether or not a message is required.

Here, the equipment operation support function (7) takes in the image data file (2) and searches the image data for data matching the symbol image described in the equipment operation condition table (8).

If there is matching data, processing for operator support is performed based on the content of the support processing described in the equipment operation condition table (8). That is, if there is a description indicating prohibition of input operation of the symbol in the equipment operation condition table (8), the display position of the symbol detected by the equipment operation support function (7) is set as the origin, and the operation of the symbol is prohibited. In addition to adding the display of the frame according to the range data indicating the range, the notification of the operation data related to the range to the screen input function (5) is prohibited.

This situation will be explained using the generator stop facility operation support function as an example. The left side of FIG. 2 shows the case where both generators (10 and 11) are in operation. In this state, there are no special restrictions on the shutdown operation of either generator. The right side of FIG. 2 shows a state in which only the No. 1 generator (12) is stopped. Here, in order to avoid a state in which both generators stop, a frame line (14) is provided around the operation symbol for the second generator (13), and screen input operations within this frame line are prohibited.

At the same time, an operation message (15) is displayed. Further, when there is a designation to display the message, the facility operation support function (7) generates screen display data constituting the message and describes it in the image data file (2). The generated driving support information is displayed on the display processing device (4) by the image signal generator (3) and notified to the operator.

Here, the facility operation support function (7) determines whether or not to apply the operation restriction based on the qualification of the operator, and if it determines that the operation restriction is necessary, an operation signal is sent to the screen input function (5). Do not notify. If it is determined that no operation restriction is necessary, all operation signals are notified to the screen input function (5) without setting any restriction on the operation.

The operator's qualification can be notified by providing a dedicated qualification entry field on the screen by the operator, or by using information entered when logging into the computer, but any method is acceptable.

If it is determined that the operation is not permitted, the image data surrounding the symbol in a frame of a specific color is generated and described in the image data file (2), thereby displaying on the screen to the operator that the input operation is excluded. expressly notify you in a way that

At the same time, the notification to the screen input function (5) is eliminated by, for example, invalidating the input operation in this area. In addition, if it is determined that the operation is not permitted, it is also possible to consider a method of disabling only screen input operations such as mouse click operations and keyboard input operations in this area without enclosing the relevant symbol with a frame of a specific color. be done.

FIG. 3 shows an example of a screen called up by the operator to start or stop the air conditioner. Here, there is a title portion of the screen, and operation buttons for starting and stopping the air conditioner are provided together with the title name of the air conditioner #1 setting.

If the equipment operation condition table (8) contains a description for determining the authority for operation, the equipment operation support function (7) determines whether the operation is permitted or not based on the operator's qualifications. If it is determined to be an operation, the screen input function (5) is notified of an operation signal.

If it is determined that the operation is not permitted, image data is generated surrounding the operation button with a frame of a specific color and described in the image data file (2). notify you in a way that At the same time, the notification to the screen input function (5) is eliminated by a method such as invalidating the input operation represented by mouse click operation and keyboard operation in this area.
FIG. 6 shows a flow chart of the equipment operation support function (7).

In FIG. 4, an image signal input device (9) is added to the configuration of FIG. Here, the facility operation support function (7) uses the image signal input device (9) instead of the image data file (2) to capture the image generated by the application, similar to that described in the first embodiment. to realize the operation of

When the facility operation support function (7) and the image data file (2) are arranged in different devices, the configuration shown in this example is appropriate.

An embodiment for providing a safety support function for an operator who operates a screen displayed by a browser will be shown. Here, the present invention will be described with an example of a function called phishing, which supports prevention of input operation of important information such as a password by an operator who displays an erroneous site screen contrary to the intention. FIG. 5 provides a browser (30) instead of the application (1) shown in the configuration of FIG. 7) is replaced with a browser operation support function (32).

In the browser operation condition table (31), there are URLs starting with https://www or http://www related to multiple fraudulent sites, and operator authentication data input fields provided in the site screen called by the URL. , the image data for determining each shape and the information indicating the position and range on the screen where the operation is prohibited are described in association with each other. That is, the browser operation condition table (31) contains character string data for specifying the URL, the range of screen input operation prohibition, the qualification information for permitting the operation, and the warning for each URL to be prohibited from being operated. Define a message. At the same time, it defines whether or not to display the input prohibited area on the display screen, and whether or not a message is required.

Here, if the browser operation support function (32) captures the image data file (2) and detects a URL that matches the URL information described in the browser operation condition table (31) in the URL portion displayed in the image data. For example, processing for support for the operator is performed based on the contents of the support processing described in the browser operation condition table (31).

In other words, if the browser operation condition table (31) has a URL that matches the URL related to the unauthorized site and the browser operation condition table (31) has a description indicating that symbol input operation is prohibited, the symbol is displayed with a frame. is added, and notification of operation data to the browser (30) is prohibited.

At the same time, an operation message (15) is displayed. Further, when there is a designation to display the message, the browser operation support function (32) generates screen display data constituting the message and describes it in the image data file (2).

The generated operation support information is displayed on the display processing device (4) by the image signal generator (3) and notified to the operator.

When the authority for operation is determined by the support function of the browser operation support function (32), the browser operation support function (32) determines whether or not to apply the operation restriction based on the qualification of the operator. , if it is determined that it is necessary to restrict the operation, the screen input function (5) is not notified of the operation signal. If it is determined here that no restrictions on operations are necessary, all operation signals are notified to the screen input function (5) without any restrictions on operations.

Here, the operator's qualification can be notified by providing a dedicated qualification entry field on the screen by the operator, or by using information entered when logging in to the computer, but any method is acceptable. I do not care.

If it is determined that the operation is not permitted, the image data surrounding the symbol in a frame of a specific color is generated and described in the image data file (2), thereby displaying on the screen to the operator that the input operation is excluded. expressly notify you in a way that

At the same time, notification to the screen input function (5) is eliminated by, for example, invalidating screen input operations represented by mouse click operations and keyboard input operations in this area. Note that, when it is determined that the operation is not permitted, there is a method of invalidating only the mouse click operation and keyboard input operation in this area without enclosing the symbol with a frame of a specific color.

If the content of the support processing includes a description of determining the authority for operation, the browser operation support function (32) determines whether the operation is permitted or not based on the operator's qualifications, and determines whether the operation is permitted. If determined, an operation signal is notified to the screen input function (5).

If it is determined that the operation is not permitted, image data is generated surrounding the operation button with a frame of a specific color and described in the image data file (2). notify you in a way that At the same time, notification to the screen input function (5) is eliminated by a method such as invalidating input operations represented by mouse click operations and keyboard input operations in this area. A flowchart of the browser operation support function (32) is shown in FIG.

In the industrial field, many facilities are operated with monitoring of conditions and setting control by operators for maintenance maintenance. For this reason, computers have become indispensable for improving work efficiency.

On the other hand, in response to requests for improvement of work efficiency, there are increasing cases where a small number of operators operate various types of equipment. There is a need for a mechanism that can be easily retrofitted with a support function that ensures safe operation according to the skill of the operator.

In addition, in the field of important commercial transactions using communication networks such as the Internet, the function of the web server that provides information and the function of the browser on the computer that exchanges information depends on the skill of the computer operator. Providing individual security measures is often as difficult as in the field of equipment mentioned above.

Screen operation functions that provide safety measures are also effective in such fields. An object of the present invention is to meet such demands in an inexpensive manner.

Configuration diagram of the invention Example showing the operating state of a generator Example of the screen called up by the operator to start or stop the air conditioner Configuration diagram of Example 2 Configuration diagram of Example 3 Flowchart of equipment operation support function Flowchart of browser operation support function

1 Application Equipment information is displayed on the screen display device, and the operation operation of the operator is input using the input device to notify the equipment of setting control information.
2 Image signal generator Converts the screen display data in the image data file into image signals in formats such as VGA and DVI.
3 Image data file A file that saves the screen display data generated by the application.
4 Display device Displays the screen based on the image signal.
5 Screen input function Used for screen operation such as mouse and keyboard 6 Equipment Generators, air conditioners and other industrial equipment 7 Equipment operation support function 8 Equipment operation condition table 9 Image signal input device
Captures image signals called VGA or DVI and converts them to bitmap data Symbol display example of generator 13 Symbol display example of No. 2 generator indicating that the stop operation target is in operation 14 Display frame example indicating the range of operation restrictions 15 Message example indicating operation restrictions 20 Display screen title example 21 Equipment operation Display frame example showing restricted range 30 Browser
Function to display the data distributed from the web server on the screen and notify the data to the web server based on the operator's screen operation 31 Browser operation condition table

Claims (4)

In a computer equipped with a facility monitoring control function, a display device, an input function, and an operation support function, a function that uses image data that displays the status of the facility to determine whether to permit or prohibit the setting control operation of the facility. equipment operation method. In a computer equipped with a facility monitoring control function, a display device, an image new word collection device, an input function and an operation support function, using an image signal that displays the status of the facility and image data obtained from the image signal input device, A facility operating method having a function of determining whether to permit or prohibit facility setting control operations. In a computer equipped with a browser function, a display device, an input function, and an operation support function, based on the image data displayed by the browser function of the data distributed by the web server, it is possible to determine whether to permit or prohibit the input operation on the screen. Browser screen operation method with functions. A facility operation method or a browser screen operation method having a function of invalidating a screen input operation based on the judgment result of operation prohibition according to any one of claims 1 to 3.

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