KR20190135724A - Hmi device and method for outputting data thereof - Google Patents

Abstract

Disclosed is a data outputting method of a human machine interface (HMI) device comprising the steps of: setting a communication and storing period for receiving monitoring data and an update period of monitoring screens for outputting monitoring data according to the number of a plurality of monitoring screens for monitoring devices to be monitored displayed through HMI devices and/or the number of objects contained in monitoring screens; receiving, storing and outputting monitoring data according to the communication and storing periods and the update period of monitoring screens; and changing the communication and storing periods and the update period of monitoring screens according to monitoring states of the devices to be monitored. Accordingly, the present invention can control efficiently update periods for receiving, storing and outputting monitoring data according to patterns and states of humans monitoring machines in a relationship between humans and machines.

Description

HMI device and data output method of HMI device {HMI DEVICE AND METHOD FOR OUTPUTTING DATA THEREOF}

The present invention relates to an HMI device and a data output method of the HMI device, and more particularly, by efficiently performing data reception and data processing related to the output of data according to an algorithm, which can reduce the time required for data output. It relates to an HMI device and a data output method of the HMI device.

HMI (Human Machine Interface) is a system that supports the mutual communication between human and machine by facilitating the connection between device and device and between human and device, and is a general term for input / output system in charge of interface and related software technology. to be.

The HMI starts from the need for a standardized way to monitor and control multiple remote controlled devices (PLC, RTU, etc. control equipment). PLCs provide an automated, pre-programmed approach to a series of processes, but the task of collecting data from PLCs operating in a distributed environment has its own challenges, and standardizes to provide information to operators. There is no existing way.

The HMI collects, formats, and combines data from a variety of devices in an environment consisting of many types of networks. It also connects to the database and provides trending, diagnostic data, and management information. In practice, many PLC manufacturers provide data to the HMI using open communication protocols.

1 is a flowchart of a data output method of an HMI device according to the related art.

Referring to FIG. 1, the HMI device updates and outputs data represented by an object at a monitoring time point. Specifically, the HMI device may be connected to a control target device to determine an operating state of the target control target device, or may receive monitoring data through communication with the control target device, and may determine an operating state of the controlled device, for example, an ON / OFF state. It displays by using the icon that represents, or numerical value corresponding to the received data is displayed on the monitoring screen.

However, when a plurality of monitoring objects are included in the monitoring screen, the monitoring loop required to update data about each object once becomes long. In this case, the user suspects the processing speed or processing capacity of the HMI device due to the delay incurred during the rendering of the monitoring screen while watching the monitoring data is updated for all objects included in one monitoring screen. Due to inefficient data processing of the HMI device, the update of the monitoring screen may take a long time. This delay may be frequent when a number of controlled devices are monitored by one HMI device. Specifically, the delay may vary depending on the number of monitoring screens managed by one HMI device and the number of objects included in one monitoring screen. Degree may vary

According to the related art, after the monitoring screen is selected by the user, the HMI device makes a drawing determination to output the selected monitoring screen through the display device (S10). The HMI device communicates with the controlling device to receive monitoring data about the object included in the selected monitoring screen and checks an object state value (S20). In addition, the HMI device displays a numerical value indicating an icon or data representing an object state value on the monitoring screen on the display device through a data processing process. The above process is not based on the scheduling algorithm, and immediately displays the monitoring data about the object of the monitoring screen after the user selects the page. When the number of objects included in the monitoring screen is large, the excessive data depends on the network condition. Processing time may take time.

According to the data output method of the HMI device and the HMI device according to an embodiment of the present invention, the communication, the reception of data, the storage of data and the updating of the monitoring screen according to a predetermined period, the operation of the display device and the user The user may experience a fast response speed in the visualization of information according to the detection of the behavior, changing a preset period, and an efficient performance of data processing for receiving data and displaying information about the data. In this regard, the HMI device and the data output method of the HMI device according to an exemplary embodiment of the present invention are distinguished from the related arts described above and are disclosed to solve the problems of the prior art.

Korean Unexamined Patent Publication No. 10-2017-0111223 (2017.10.12.)

SUMMARY OF THE INVENTION An object of the present invention is to provide an HMI device and an HMI device that can efficiently control an update cycle for receiving, storing, and outputting monitoring data according to a human condition and a pattern of monitoring a machine in a relationship between a human and a machine. It is to provide a data output method.

An additional object of the present invention is to provide a data output method of an HMI device and an HMI device which can reduce time delay for visualization from a user's point of view by controlling resource utilization due to data processing required for monitoring data output of a plurality of monitoring targets. To provide.

The data output method of the HMI device according to an embodiment of the present invention, the number of monitoring screens for monitoring the operation of the control target device displayed through a human machine interface (HMI) device and / Or setting a communication and storage cycle for receiving monitoring data and an update cycle of the monitoring screen for outputting the monitoring data according to the number of objects included in the monitoring screen; Receiving, storing and outputting monitoring data according to a communication and storage cycle and an update cycle of the monitoring screen; And changing the communication and storage cycles and the update cycle of the monitoring screen according to the monitoring state of the control target device.

The receiving, storing, and outputting of the monitoring data may be performed immediately on occurrence of alarm data related to data measured in an abnormal range compared to a reference value within a preset normal range regardless of the communication and storage cycles and the updater of the monitoring screen. Processing for reception, storage and output is performed.

Here, in the setting of the communication and storage cycle and the update cycle of the monitoring screen, the objects included in the monitoring screen are classified into n groups according to the possibility of switching of the monitoring state or the importance of the monitoring state, and the communication for each group is performed. And differentially setting the storage cycle and the update cycle of the monitoring screen, and receiving, storing, and outputting the monitoring data, sequentially updating the information of each group, and updating the communication and storage cycle and the monitoring screen according to the group. It is characterized by changing the period differently.

The data output method of the HMI device may include determining whether the HMI device displays a monitoring screen; Determining whether a person and / or moving object is detected around the HMI device; Determining whether a user input is occurring in the HMI device; And at least one or more steps of determining a switching of a monitoring screen page, and when the corresponding state is determined at each step, the communication and storage cycles and monitoring of the control target device and the object according to the degree of monitoring focus. It is characterized by changing the update cycle of the screen.

The determining of the switching of the monitoring screen page may further include predicting a page to be switched by detecting a pattern of page switching and a user input keyword for a search output, and receiving, storing, and outputting the data. The step of receiving, characterized in that for receiving and storing the latest monitoring data displayed on the monitoring screen is expected to output according to the prediction.

The data output method of the HMI device may further include determining schedule information regarding driving of the HMI device and / or the display device included in the HMI device, and according to the schedule information, the HMI device and / or the And terminating driving of the display device.

HMI device according to an embodiment of the present invention, the number of monitoring screens and / or monitoring screen for monitoring the operation of the controlled device displayed through a Human Machine Interface (HMI) device (device) A period setting module configured to set a communication and storage period for receiving monitoring data and an update period of a monitoring screen for outputting monitoring data according to the number of objects included; A state determination module for determining a monitoring state of the control target device; And a period changing module for changing the communication and storage periods and the update period of the monitoring screen according to the monitoring state of the control target device.

Here, the HMI device may be configured to immediately receive, store, and output alarm data related to data measured in an abnormal range from a reference value within a preset normal range regardless of the communication and storage cycles and the update cycle of the monitoring screen. It further comprises a communication, storage and output device for performing the process.

Here, the period setting module classifies the objects included in the monitoring screen into n groups according to the possibility of switching the monitoring state or the importance of the monitoring state, and sets the communication and storage periods and the update period of the monitoring screen for each group. The output device may sequentially update information of each group, and change the communication and storage periods and the update period of the monitoring screen differently according to the groups.

Here, the HMI device includes a module that determines whether the HMI device displays a monitoring screen; A module for determining whether a person and / or a moving object are detected around the HMI device; A module for determining whether a user input is occurring in the HMI device; And at least one of a module for determining switching of a monitoring screen page, wherein the period changing module is configured to: when the corresponding state is determined by the module, the communication to the controlled device and the object according to the degree of monitoring focus; It is characterized by changing the storage cycle and the update cycle of the monitoring screen.

Here, the module for determining the switching of the monitoring screen page detects the pattern of the page switching and the user's input keyword for the search output, and predicts the page to be converted, and the communication, storage, and output device according to the prediction It is characterized by receiving and storing the monitoring data displayed on the monitoring screen which is expected to be output as the latest one.

The HMI device may further include a module for determining schedule information regarding driving of the HMI device and / or the output device, and ending driving of the HMI device and / or the display device according to the schedule information. It is done.

According to the present invention, it is possible to efficiently control the update cycle for receiving, storing and outputting the monitoring data according to the state and pattern of the human monitoring the machine in the relationship between the human and the machine.

In addition, by controlling the resource utilization rate due to the data processing required for the monitoring data output of the plurality of monitoring targets, it is possible to reduce the time delay for visualization from the user's point of view.

1 is a flowchart of a data output method of an HMI device according to the related art.
2 is an exemplary view of a system environment including an HMI device according to an embodiment of the present invention.
3 is a block diagram of an HMI device according to an embodiment of the present invention.
4 is a flowchart illustrating a data output method of an HMI device according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the HMI device and a data output method of the HMI device will be described in detail with reference to the accompanying drawings.

Like reference numerals in the drawings denote like elements. In addition, specific structural to functional descriptions of one embodiment of the present invention are only illustrated for the purpose of describing the embodiment according to the present invention, and unless otherwise defined, all terms used herein including technical or scientific terms are used. The terms have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined herein. It is preferable not to.

The monitoring screen referred to in the present invention is a kind thereof and includes an electronic document that can be created by the HMI software, that is, the HMI editor application module, stored in a file, and capable of display output by execution.

Hereinafter, a system environment 1 including an HMI device 200 according to an exemplary embodiment will be described.

2 is an exemplary diagram of a system environment including an apparatus for adjusting the number of pages of a document according to an exemplary embodiment.

Referring to FIG. 2, the system environment 1 according to an exemplary embodiment may include a user terminal 100, an HMI device 200, a server 300, a database 350, a network 400, and a monitoring target system. 600 and utilization device 700.

The user terminal 100 includes a PC for driving the HMI editor program for editing a monitoring screen, aka drawing, a notebook computer possessed by an engineer at a work site for input of control commands, and a control object possessed by an engineer at a work site and a remote site. It may be implemented in the form of a personal terminal for device monitoring.

In particular, the user terminal 100 may be functionally connected to the HMI device 200 as a client to check the output according to the monitoring function performed by the HMI device 200. Therefore, the user terminal 100 is a kind of viewer dedicated to viewing the monitoring screen, a dedicated device capable of creating and editing the monitoring screen, a monitoring screen editor, a monitoring screen editing device, or a monitoring screen creation and editing. Computing devices capable of performing general purpose operations, terminals, and wireless terminals may be included.

Various embodiments of a wireless terminal include a cellular telephone, a smart phone having a wireless communication function, a personal digital assistant (PDA) having a wireless communication function, a wireless modem, a portable computer having a wireless communication function, and a digital camera having a wireless communication function. Portable units or terminals incorporating combinations of such functions as well as photographing devices, gaming devices with wireless communication capabilities, music storage and playback appliances with wireless communication capabilities, internet appliances with wireless internet access and browsing But may include, but are not limited to.

The user terminal 100 may download and install an HMI application module that may access the server 300 and check the monitoring activity of the HMI terminal 200. Alternatively, the HMI application module 175 may be supplied to the user in a form stored in optical storage media such as CD-ROM and DVD-ROM. The user terminal 100 may download various patch files from the server 300 through the network 400 and update the HMI application module 175.

The HMI device 200 serves as a main object of the present invention, receives, stores, and outputs various monitoring data generated from the monitoring target device 600, for example, the PLC system 600. The HMI device 200 may be connected to the monitoring target device 600 through the network 400 via a serial communication line or an Ethernet device. In addition, the PLC system 600 may be connected to the input / output / communication device 650 to receive an input, output an output, or communicate with the communication device. And this series of processes is the monitoring target of the HMI device (200).

 In addition, the HMI device 200 may be connected to various utilization devices 700 such as a bar code reader or a USB memory stick to transmit and / or receive data with the utilization device 700.

The HMI device 200 according to an embodiment of the present invention may be applied to an algorithm according to a control state of a monitoring target device 600, that is, a control target device, for example, a PLC system, which is monitored and / or controlled through the HMI device 200. Accordingly, the monitoring data is characterized in that it outputs.

Specifically, the HMI device 200 collects monitoring data to display monitoring information about an object according to the number of monitored devices, the number of monitoring objects included in each monitored device, and the number of objects included in one monitoring screen. And it is characterized in that to set the cycle for outputting this differentially.

In addition, the HMI device 200, in principle, to collect and output the monitoring data according to a predetermined cycle, the monitoring state that the operation of the PLC system is monitored, for example, the display device of the HMI device 200 is monitored Is displayed on the screen, whether the movement of a moving object such as a person is detected around the display device, whether the user input through the input device is detected, whether there is a page change of the monitoring screen according to the user input, and the pattern of the page change. The data collection cycle and the data output cycle may be changed according to an algorithm.

The server 300 receives and stores various monitoring data generated by the monitoring target device 600, for example, the PLC system 600, from the PLC system 600 and / or provides the same to the user terminal 100. In addition, various files requested by the user terminal 100 may be stored and transmitted.

That is, the server 300 may store the HMI application module 175 linked to the HMI program module driven by the HMI device 200. Therefore, the user terminal 100 may download and install the HMI application module 175 from the server 300.

The server 300 may include a backup server, a file server, an update server, an FTP server, a cloud server, a web server, and a database server that store files provided to the user terminal 100 as a kind, but are not limited thereto. no. The file server 300, the FTP server 300, and / or the update server 300, which store the HMI application module, include various files necessary for the user terminal 100, such as HMI application module files, extended application module files, and the like. The service pack file may be stored, and the user terminal 100 may be accessed to provide reception / transmission or update of files by file downloading.

In addition, the cloud server 300 may store all or part of the HMI application module in the cloud server 300 and provide the user terminal 100 to the user terminal 100 through the web server 300. Therefore, the user terminal 100 may receive all or a part of functions provided by the HMI application module through the remote cloud server 300 and / or the web server 300.

The backup server 300 storing the monitoring data stores the monitoring data at the request of the user terminal 100 and / or the HMI device 200, and at any time, the user terminal 100 and / or the HMI device 200. ) Make it accessible.

In addition, the database server 300 stores various monitoring data, data for cloud services, web application data, and the like in the database 350 and provides them to the user terminal 100 and / or HMI device 200 requesting them.

Network 400 may be a wired and wireless network, such as the Internet, intranet and extranet, cellular, such as a wireless telephone network, a local area network, a wide area network. ), A WiFi network, an ad hoc network, and a combination thereof.

Network 400 may include a connection of network elements such as hubs, bridges, routers, switches, and gateways. Network 400 may include one or more connected networks, such as a multi-network environment, including public networks such as the Internet and private networks such as secure corporate private networks. Access to the network 400 may be provided through one or more wired or wireless access networks.

3 is a block diagram of an HMI device according to an embodiment of the present invention.

Referring to FIG. 3, the HMI device 200 according to an embodiment of the present invention may include an operation mode determination module 210, an operation information collection module 220, an operation control module 230, a state detection module 240, and And a display module 250. In addition, the state detection module 240 may be configured as a screen display detection module 241, a person / mobile object detection module 242, a user input detection module 243, a page change detection module 244, and a schedule management module ( 245).

The operation mode determination module 210 determines the operation mode of the control target device, that is, the PLC. In addition, the operation information collection module 220 collects various monitoring data output from the PLC, and the operation control module 230 directly controls the operation of the PLC by generating a command related to the PLC operation.

The driving information collection module 220 controls the process of collecting the monitoring information. The driving information collection module 220 may include various components, among which the period setting module 221 is included.

The cycle setting module 221 sets and changes the update cycle for displaying the communication cycle and data processing result of the HMI device 200 to communicate with the PLC on the monitoring screen. The communication cycle involves the process of receiving data via data communication and storing it in a local storage device. The update cycle is related to screen rendering for displaying corresponding data numerically or using an edited picture or the like on the monitoring screen.

The initial communication and storage cycle and the update cycle of the monitoring screen are set in advance, and the state between the machine and the human being, such as the PLC to be controlled and the HMI device 200 as the monitoring device connected thereto and the human being such as the user corresponding to the engineer or spectator When is changed, the initially set communication and storage cycle and the update cycle of the monitoring screen are changed for efficient data processing and output.

Referring back to FIG. 2, the HMI device 200 may monitor the plurality of control target devices 600, collect a plurality of monitoring data, and correspond to a plurality of users corresponding to the display device and the client coupled to the main body 200. The monitoring information may be displayed through the display device of the terminal 100 and / or the expansion display device connected to the main body 200. The state sensing module 240 to be described below performs various sensing in relation to the display device and / or the input device coupled to the main body 200 in principle, but displays the plurality of user terminals 100 corresponding to the described clients. The same sensing may be applied to the extended display device 700 connected to the device and / or the main body 200.

The monitoring state of the control target device refers to a state in which the control target device to be monitored is monitored by the HMI device 200. The degree of monitoring status depends on the degree to which the monitoring is concentrated on the monitoring screen that displays monitoring information. That is, whether the screen output by the display device is turned on by a schedule or a human action, whether a movement of a person / mobile body around the display device is detected, whether there is a user input through an input device such as a touch screen or a mouse, The concentration of the monitoring may vary depending on whether there is a page change of the monitoring screen according to the user's input. If there is a change in the degree of monitoring state, the preset communication and storage cycle and the update cycle of the monitoring screen may be changed.

And the period change is performed in the direction for displaying the information that can be output to the user through the monitoring screen most efficiently.

The screen display detection module 241 detects the power supplied to the display device connected to the HMI device 200 and detects whether the current monitoring screen is displayed or the black screen state. In the black screen state, the HMI device 200 performs communication and data processing according to a preset communication and storage cycle and an update cycle of the monitoring screen without changing the cycle. Since there is no information displayed through the monitoring screen in the black screen state, the update period of the monitoring screen may be set longer than in other cases. However, in the case where there exists the client 100 extended display device 700, an update period in consideration of this may be set. The process of setting and changing the cycle is performed by the cycle setting module 221.

The person / mobile body sensing module 242 detects a movement of a person and / or a mobile body occurring around the main body or display device of the HMI device 200. The power of the display device may be controlled to output a monitoring screen through the sensing result display device. In addition, when a movement of a person is detected, the person / mobile body sensing module 242 controls the display device to display a main monitoring screen among a plurality of monitoring screens. In this case, the period setting module 221 changes a communication and storage cycle and an update cycle of the monitoring screen to display the objects included in the main monitoring screen with the latest information.

The user input sensing module 243 serves to detect whether there is an input by the operation of the input device by the user. For example, it may be assumed that a user operates the touch screen for displaying a specific monitoring screen or inputting another command while only a monitoring screen is displayed. In this case, when a user input is detected, the period setting module 221 changes a communication and storage cycle and an update cycle of the monitoring screen in order to detect a user input pattern in advance and efficiently display the monitoring screen according to the pattern. Can play a role. User input includes input including page change and user input other than page change, and will be described in order.

The page change detection module 244 detects a pattern of page number input or sequential page conversion among user inputs. For example, the user informs the HMI device 200 of the desired output target through the monitoring screen page number. The user can directly specify the page number or attempt to page up or down through the arrow keys. When the page change of the monitoring screen is detected, the cycle setting module 221 detects the above pattern in which the page is switched in advance, so that the information on the monitoring screen, which is expected to be output in the future, is displayed as the latest, and the cycle and the monitoring screen are displayed. Change the update frequency of the.

In addition to page conversions, users can search for objects by entering keywords that characterize the object of interest to monitor the object of interest. In this case, the user input detection module 243 detects not only the presence or absence of an input, but also updates the communication and storage cycles and the monitoring screen so as to detect the content indicated by the input keyword and output the data on the object related to the keyword as the latest one. You can change the frequency.

In addition, the schedule management module 245 may manage power of the HMI device 200 and / or the display device by managing an operation schedule of the HMI device 200 and / or the display device. For example, the operation of the HMI device 200 may be started by determining whether the PLC is in operation, and based on the operation schedule table of the PLC or the operation schedule table of the HMI device 200 itself, the HMI device 200 and And / or manage power of the display device connected thereto.

The display module 250 serves to display a monitoring screen through the display device. The display module 250 displays the monitoring screen of the control target device according to a preset user setting, and as the focus of the monitoring degree of the control target device changes, the display module 250 displays information on the monitoring screen according to the update cycle of the changed monitoring screen of the control target device. Can be displayed.

In addition, the display module 250 may display information on objects classified into a plurality of groups in different update cycles according to the possibility of switching the monitoring state or the importance of the monitoring state even in one monitoring screen.

A data output method of the HMI device according to an embodiment of the present invention executed by the HMI device 200 described below will be described with reference to FIGS. 3 and 4.

HMI device 200 according to an embodiment of the present invention is largely a process for receiving observation data transmitted from the control target device 600 from the control target device 600, storing the received data in the storage device of the local area Process, and outputting information about the stored data through the display device and the output device.

When the controlling device 600 generates the monitoring data and transmits the monitoring data, the process of receiving and storing the monitoring data is performed periodically or immediately. Here, the difference of a certain period or immediately, if there is only one monitoring system 600, the data transmitted from each monitoring system 600 may be processed immediately at the HMI device 200, but the data is transmitted When there are a plurality of monitoring target systems 600, data transmitted according to a predetermined cycle may be processed by the HMI device 200. The two broadly divided processes will be abbreviated as receive and store processes and output processes.

A data output method of an HMI device according to an embodiment of the present invention relates to a method of processing two processes.

The receiving and storing process and the output process are performed by the HMI device 200 according to a preset algorithm. When various events occur in the surrounding environment, the preset algorithm is changed and the HMI device 200 is changed for more efficient process execution. Can perform the data receiving and storing process and the data output process according to the changed algorithm.

The data output method S100 of the HMI device according to an embodiment of the present invention focuses on a case where a reception and storage process and a data output process require a load exceeding the performance that the HMI device 200 can exert. It can be used to prevent delays in the visualization of information and to provide output to the user immediately.

4 is a flowchart illustrating a data output method of an HMI device according to an embodiment of the present invention.

Referring to FIG. 4, a data output method of an HMI device according to an embodiment of the present disclosure includes steps S110 to S150 as its components.

The HMI device 200 performs steps S110 to S150 according to the HMI data output method according to an embodiment of the present invention. In particular, the HMI device 200 performing each step may be implemented in hardware, for example in the form of one LSI, or in software, for example, a central processing unit, a memory, and interworking with them. It can be implemented with a combination of HMI program modules corresponding to a coded computer instruction set that executes an operating system loaded in memory and an HMI data output method.

First, the HMI device 200 may include a plurality of monitoring screens displayed through a Human Machine Interface (HMI) device and / or a number of objects included in the monitoring screens. A communication and storage cycle for receiving data regarding tag information of each object included and an update cycle of a monitoring screen for displaying information are set (S110).

Next, the HMI device 200 receives data according to a communication and storage cycle, the storage device stores the data, and the display device and the output device output the data according to the update cycle (S120). The output device includes various LED lamps and speakers as its kind.

In spite of the preset communication and storage cycle and the update cycle of the monitoring screen, alarm data related to the data measured in the abnormal range compared to the reference value within the preset normal range occurs regardless of the communication and storage cycle and the update cycle of the monitoring screen. Processing for immediate reception, storage and output is performed.

The types of data measured in an abnormal range include various measurements such as current, voltage, power, and resistance values and the temperature of the controlled device. The alarm data may include not only the case where the data is measured in an abnormal range but also data relating to, for example, operation start information, operation plan information, and operation termination information to be notified to an engineer according to a schedule or setting.

When the alarm data is generated, the HMI device 200 immediately updates the monitoring screen so that alarm information about the alarm data is displayed on the monitoring screen (S120).

In operation S120, the HMI device 200 may classify the objects included in each screen into n groups, and set a communication and storage cycle and an update cycle of the monitoring screen for each group.

For example, suppose there are 20 objects displaying 20 tag information on the monitoring screen. In order to update the display of the monitoring screen, the HMI device 200 needs to receive and process monitoring data corresponding to 20 tag information and output the same through the display device. However, the visualization of the information may be delayed due to the time required to receive, process and output the monitoring data corresponding to the 20 tag information. Accordingly, according to an embodiment of the present disclosure, the HMI device 200 classifies 20 objects into several groups, such as a first group, a second group, and a third group, and includes the first group, the second group, and the first group. The data is processed and output in order of 3 groups. The first group, the second group and the third group may have different update periods with respect to data reception and display output. The update time of the corresponding information may be displayed on the monitoring screen.

In this case, the monitoring data is collected by the HMI device 200 according to a cycle set in advance in step S120 and stored in a local storage device. The stored data is output through the display device and / or the output device according to the update period set for each group of objects on the monitoring screen.

Next, the screen display detection module 241 determines whether the display device of the HMI device 200 displays the screen (S131).

If the monitoring screen is displayed through the display device, the HMI device 200 may change a communication and storage cycle and / or an update cycle of the monitoring screen (S132).

Next, the person / mobile body sensing module 242 determines whether an event of sensing a person and / or a body around the HMI display device occurs (S133).

If a person or the like is detected through a detection sensor or the like, the HMI device 200 may change a communication and storage cycle and / or an update cycle of the monitoring screen (S134).

Next, the HMI device 200 determines whether a user input is generated in the HMI device (S135).

If a user input is detected, the HMI device 200 may change a communication and storage cycle and / or an update cycle of a monitoring screen (S136).

Next, the HMI device 200 determines whether the page of the monitoring screen is switched (S137).

If a page change occurs or is expected according to a user input, the HMI device 200 may change a communication and storage cycle and / or an update cycle of a monitoring screen (S138).

If there is a screen page change, the HMI device 200 displays updated tag information on the screen of the corresponding page (S120).

Next, the HMI device 200 determines whether the driving of the corresponding device is terminated using the schedule table of the HMI device and / or the display device included in the HMI device and the schedule table of the PLC which is the control target device (S140).

When the corresponding time relating to the drive / end of the device is reached by the schedule table or the like, the HMI device 200 ends the drive of the HMI device and / or the display device (S150).

Next, various embodiments of setting the period and changing the period will be described.

For convenience of description, it is assumed that 10 PLC systems are connected to the HMI device 200 as the control target device 600 in FIG. 2. And, the monitoring data generated in each PLC system, the corresponding information is displayed through 10 monitoring screens provided by one HMI device (200). In addition, it is assumed that each monitoring screen includes tag information of 10 objects.

In summary, the HMI device 200 needs to receive and store tag information, that is, corresponding data of a total of 1000 objects generated in ten PLC systems, and output them according to a user's request.

First, which PLC system information among the ten PLC systems is to be output preferentially depends on the following process.

First, it is assumed that the monitoring state of the PLC system corresponding to the control target device 600 to be monitored starts at a minimum state. Here, the event which is a criterion for determining the monitoring state means an event occurring in a relationship with a user, an engineer, or a general person in the surrounding environment where the HMI device 200 is placed. When the event is numbered, the first event is to generate alarm data. Here, the alarm data is defined between the PLC system 600 and the HMI device 200. For example, various measurement values to be monitored occur in an abnormal range, and notification of occurrence of such abnormal measurement values and their values Data about Here, the measured value includes temperature, current / voltage / power value, and resistance value. The abnormal measurement value is determined based on a preset reference value.

The occurrence of the second event is to detect whether the monitoring screen is displayed. That is, whether the monitoring screen output through the display device is displaying information or a black screen. This is because the display device may be cut off according to a setting by determining a time zone or use of the display device.

The occurrence of the third event is that a person or moving object is detected. That is, when the third event occurs, the screen of the display device may be switched to display a monitoring screen, for example, a main screen set by a user, in response to power on in a black state. In the case where the third event occurs, the first step is to process tag information indicated by the object displayed through the main screen to the minimum as there are people who watch the monitoring screen output by the display device even if there is no user input. Needs to be.

The occurrence of the fourth event is the presence of user input by a user, engineer or spectator. In the state where the display device displays only the main screen, a user, engineer or spectator, where the spectator is a general person, is a user input by their actions such as a mouse movement or a touch action of a touch screen. The presence of user input suggests that in the future, the user may request a particular monitoring screen page, and needs to first update the data reception and display regarding the tag information contained in the requested screen page.

The occurrence of the fifth event is a page of the monitoring screen switched by the user, the engineer, or the viewer. The occurrence of such an event may be performed by the user, for example, by first updating data regarding tag information included in a page of the corresponding monitoring screen in consideration of the currently displayed page, and adjusting the update period according to the operation of the input device. Related.

It can be seen that the focus on the control target device to be monitored gradually increases as the first to fifth events described above occur. As the level of the event increases, communication and storage cycles and screen update cycles that are evenly set to monitor the first 10 PLCs may be converted to focus on the focused PLC, especially the focus focused monitoring screen. Here, the communication and storage cycles for displaying information of the object included in the PLC and the monitoring screen where focus is focused and the screen update cycle may be shortened.

The occurrence of the sixth event is a schedule in which the power supply of the HMI device 200 or the display device in the HMI device may be cut off. The HMI device 200 and / or the display device are authorized due to an internal situation, for example, a driving schedule of the HMI device 200 and / or a display device, or an external condition, for example, the termination of the operation of the PLC system 600. Power can be cut off.

In one PLC system, when one monitoring screen is output, a lot of rendering time may be required depending on the number of objects included in the monitoring screen. In this case, if 30 monitoring objects are included in one monitoring screen, the first object to the tenth object may be the first group, the eleventh object to the twentieth object the second group, and the twenty-first object to the thirtieth object. Classified into a third group, the first group performs the update at the same time as the page switching, and updates the output of the object data for the second group, the third group in the same manner after the update of the first group is completed. For example, if the update of the output indications of the first group is performed immediately, the real-time transmitted data is used for the first group, and the output indications for the second group and the third group are stored in storage in the local area. The most recent historical data can be used.

Here, the first to third groups may be differentially set according to the importance of the monitored state or the possibility of converting the monitored state. For example, the power ON / OFF state of the input / output / communication device 650 controlled by the PLC is set as the first group, various parameter values including the rotational speed of the motor are set as the second group, and the external temperature is set. 3 groups can be set. Alternatively, on the contrary, the power ON / OFF state of the input / output / communication device 650 may be initially set to the first group, and thereafter, the power may be changed to the third group since the possibility of switching ON / OFF is low. In addition, the internal temperature including the power element of the PLC, not the external temperature, may be set as the first group. In addition, in the driving of the motor, the state in which the power saving occurs may be set to the first group.

As such, the monitoring data reception and storage processor and the output process performed by the HMI device 200 may be performed according to a preset cycle, and the preset cycle may be changed according to occurrence of each event. This cycle change allows the most recently updated information to be immediately output within the minimum response time in the visualization through the monitoring screen, in consideration of the performance of the HMI device 200.

The data output method S100 of the HMI device according to an embodiment described with reference to the drawings may be implemented in the form of a recording medium including a command set executable by a computer, such as a program module executed by a computer. have. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, computer readable media may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transmission mechanism, and includes any information delivery media.

As described above, according to an embodiment of the present invention, data processing for data reception and information display may be performed according to an efficient algorithm.

In addition, by distributing the load required to process the data to be output in an even time zone, it is possible to reduce the reaction time required for visualization in the user environment.

The above description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. .

100: user terminal
200: HMI device
210: operation mode determination module
220: collecting driving information
221; Cycle setting module
230: driving control module
240: status detection module
241: screen display detection module
242: person / mobile body detection module
243: user input detection module
244: Page Transition Detection Module
245: schedule management module
250: display module

Claims (12)

For receiving monitoring data according to the number of monitoring screens and / or the number of objects included in the monitoring screen for monitoring the operation of the controlled device displayed through the Human Machine Interface (HMI) device Setting an update cycle of a monitoring screen for outputting communication and storage cycles and monitoring data;
Receiving, storing and outputting monitoring data according to a communication and storage cycle and an update cycle of the monitoring screen; And
And changing the communication and storage cycles and the update cycle of the monitoring screen according to the monitoring state of the control target device. The method according to claim 1,
Receiving, storing and outputting the monitoring data,
Alarm data related to data measured in an abnormal range compared to a reference value within a preset normal range is processed for reception, storage and output as soon as they occur regardless of the communication and storage cycles and the update cycle of the monitoring screen. The data output method of the HMI device. The method according to claim 1,
The setting of the communication and storage period and the update period of the monitoring screen,
The objects included in the monitoring screen are classified into n groups according to the changeability of the monitoring state or the importance of the monitoring state, and the communication and storage cycles and the update cycle of the monitoring screen are differentially set for each group.
Receiving, storing and outputting the monitoring data,
Update each group's information sequentially,
The data output method of the HMI device, characterized in that for changing the communication and storage cycle and the update cycle of the monitoring screen differently according to the group. The method according to claim 1,
The data output method of the HMI device,
Determining whether the HMI device is displaying a monitoring screen;
Determining whether a person and / or moving object is detected around the HMI device;
Determining whether a user input is occurring in the HMI device; And
At least one of the steps of determining the switching of the monitoring screen page,
And when the corresponding state is determined in each of the steps, changing the communication and storage cycles of the control target device and the object and the update cycle of the monitoring screen according to the degree of monitoring focus. The method according to claim 4,
The determining of the switching of the monitoring screen page,
Detecting the pattern of the page transition and the user's input keyword for the search output to predict the page to be converted to,
Receiving, storing and outputting the data,
And receiving and storing the monitoring data displayed on the monitoring screen on which the output is expected in accordance with the prediction as the latest one. The method according to claim 1,
The data output method of the HMI device,
Determining schedule information regarding driving of the HMI device and / or the display device included in the HMI device;
And terminating driving of the HMI device and / or the display device in accordance with the schedule information. For receiving monitoring data according to the number of monitoring screens and / or the number of objects included in the monitoring screen for monitoring the operation of the controlled device displayed through the Human Machine Interface (HMI) device A period setting module for setting an update period of a monitoring screen for outputting communication and storage periods and monitoring data;
A state determination module for determining a monitoring state of the control target device; And
And a period changing module for changing the communication and storage cycles and the update cycle of the monitoring screen according to the monitoring state of the control target device. The method according to claim 7,
The HMI device,
For alarm data related to data measured in an abnormal range compared to a reference value within a preset normal range, communication and storage for processing for receiving, storing and outputting immediately upon occurrence, regardless of the communication and storage cycle and the update cycle of the monitoring screen. And an output device. The method according to claim 8,
The period setting module,
The objects included in the monitoring screen are classified into n groups according to the changeability of the monitoring state or the importance of the monitoring state, and the communication and storage cycles and the update cycle of the monitoring screen are set for each group.
The output device,
Update each group's information sequentially,
HMI device, characterized in that for changing the communication and storage cycle and the update cycle of the monitoring screen differently according to the group. The method according to claim 7,
The HMI device,
A module for determining whether the HMI device is displaying a monitoring screen;
A module for determining whether a person and / or a moving object are detected around the HMI device;
A module for determining whether a user input is occurring in the HMI device; And
At least one of the modules for determining the conversion of the monitoring screen page,
The period change module,
And when the corresponding state is determined by the module, changing the communication and storage periods for the control target device and the object and the update period of the monitoring screen according to the degree of monitoring focus. The method according to claim 10,
The module for determining the switching of the monitoring screen page,
Detect patterns of page conversions and user input keywords for search output to predict which pages will be converted,
The communication, storage and output device,
HMI device, characterized in that for receiving and storing the monitoring data displayed on the monitoring screen that is expected to output according to the prediction as the latest. The method according to claim 7,
The HMI device,
A module for determining schedule information regarding driving of the HMI device and / or the output device,
The HMI device according to the schedule information, characterized in that the driving of the HMI device and / or the display device is terminated.

Images