JP2014021781A - Portable information terminal device, server device and apparatus monitoring method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To monitor an apparatus by using a portable information terminal device, and to reduce the load of processing in the portable information terminal device.SOLUTION: The portable information terminal device includes: an input section; a radio communication section; an image data storage section; and a screen generation section. The input section receives an instruction from a user. The radio communication section receives state data showing the state of an apparatus to be monitored from a server device via radio communication. The image data storage section stores the image data of a system diagram showing a system including the apparatus. The image generation section reads the image data from the image data storage section in response to the instruction, and synthesizes the received state data with the read image data to generate a system diagram screen. The display section displays the system diagram screen.

Description

  The present invention relates to a technique for monitoring a device via communication.

  Conventionally, in a plant such as a thermal power plant, a sensor acquires process values such as plant temperature, pressure, and flow rate, statuses such as valve opening and closing information, information such as alarm signals (hereinafter, monitoring control information), The control device calculates or edits the monitoring control information and transmits it to the computer via the local network. An operator in the central control room manages the plant using an HMI (Human Machine Interface) connected to a computer.

JP 2003-345431 A JP 2001-67114 A

  When image data for device monitoring is transmitted from the server device to the portable information terminal device by wireless communication, a display in the portable information terminal device may be delayed due to a transmission / reception load.

  In order to solve the above problems, a portable information terminal device which is one embodiment of the present invention includes an input unit, a wireless communication unit, an image data storage unit, and a screen generation unit. The input unit receives an instruction from the user. The wireless communication unit receives state data indicating the state of the device to be monitored from the server device via wireless communication. The image data storage unit stores image data of a system diagram indicating a system including the device. The screen generation unit reads the image data from the image data storage unit in response to the instruction, and synthesizes the received state data and the read image data to generate a system diagram screen. The display unit displays a system diagram screen.

  A server device which is one embodiment of the present invention includes a reception unit, a data generation unit, and a communication unit. The receiving unit receives monitoring data obtained by monitoring the device. The data generation unit shows a system diagram showing a system including the equipment, and relates to the image data stored in the portable information terminal device, the status data added to the image data and displayed by the portable information terminal device, Generate based on The communication unit transmits the state data to the portable information terminal device.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to monitor an apparatus using a portable information terminal device, the processing load in a portable information terminal device can be reduced.

FIG. 1 shows the configuration of the first monitoring control system. FIG. 2 shows the configuration of the computer 301. FIG. 3 shows a system diagram screen. FIG. 4 shows a trend graph screen. FIG. 5 shows an alarm screen. FIG. 6 shows the configuration of the second monitoring control system. FIG. 7 shows the configuration of the Web server 15. FIG. 8 shows terminal data management processing. FIG. 9 shows the configuration of the remote information terminal 17. FIG. 10 shows the monitoring screen display process. FIG. 11 shows a menu screen. FIG. 12 shows a system selection screen. FIG. 13 shows a monitoring control information group selection screen.

  Hereinafter, a monitoring control system for a thermal power plant will be described.

  Here, the configuration of a first monitoring control system that does not use a remote information terminal will be described.

  FIG. 1 shows the configuration of the first monitoring control system. The monitoring control system includes a computer 301, an HMI 302, a router 303, a local network 304, a control device 305, a measuring device 306, a controller 307, a PC (Personal Computer) 401, and a display device 402. The computer 301 and the plurality of control devices 305 are connected to a local network 304 that is a communication network via a router 303.

  The measuring device 306 is connected to the control device 305, generates monitoring control information based on the measurement result, and transmits the monitoring control information to the control device 305. The monitoring control information includes, for example, process values such as temperature, pressure, and flow rate of equipment in the plant, states such as valve opening / closing information, alarm signals, and the like. The measuring instrument 306 is, for example, a sensor provided in the device. The control device 305 performs a calculation process on the received monitoring control information, and controls the controller 307 based on the calculation process result. The controller 307 controls equipment in the plant according to instructions from the control device 305. The controller 307 is connected to the control device 305, generates monitoring control information based on the control result, and transmits the monitoring control information to the control device 305. Further, the control device 305 transmits monitoring control information to the computer 301 via the router 303 and the in-house network 304.

  Hereinafter, the configuration of the computer 301 will be described.

  FIG. 2 shows the configuration of the computer 301. The computer 301 includes a monitoring control information transmission / reception unit 308, a calculation unit 309, a system diagram image database 313, and a plant data database 314.

  The monitoring control information transmission / reception unit 308 receives the monitoring control information from the in-house network 304 and transmits a control command to the controller 307. The calculation unit 309 performs a calculation process for displaying the monitoring control information transmitted / received by the monitoring control information transmitting / receiving unit 308. The plant monitoring control function includes, for example, a system diagram processing unit 310 that generates a system diagram screen, a trend graph processing unit 311 that generates a trend graph screen, and an alarm processing unit 312 that generates an alarm screen.

  The system diagram processing unit 310 includes an image data composition unit 101 and a system diagram selection unit 102. The trend graph processing unit 311 includes a trend graph selection unit 112 and a trend graph display creation unit 111. The alarm processing unit 312 has an alarm screen creation unit 121.

  The plant data database 314 includes, for monitoring control information, a number for managing signals, a signal name, a signal type indicating analog or digital, monitoring control information and plant data received by the monitoring control information transmitting / receiving unit 308. An address number for linking the database 214 is stored. The supervisory control information and the contents of the plant data database 314 are linked by an address number and used by the plant supervisory control function.

  The HMI 302 includes an input unit 321 that receives input from the user of the computer 301 and an output unit 322 that displays a monitoring screen generated by the computer 301 to the user. For example, the HMI 302 is provided in a central control room of a thermal power plant. The user of the computer 301 is an operator in the central control room, for example. The output unit 322 is a CRT (Cathode Ray Tube), an LCD (Liquid Crystal Display), or the like. The monitoring screen is, for example, a system diagram screen, a trend graph screen, an alarm screen, or the like. The output unit 322 may display the display screen while switching the monitoring screen, or may divide the display screen into a plurality of areas and display the plurality of monitoring screens in the plurality of areas, respectively.

  Here, the system diagram screen will be described.

  FIG. 3 shows a system diagram screen. The system diagram screen includes, for example, a signal display unit 411, a device display unit 412, a valve display unit 413, a terminal display unit 414, a device state display unit 415, and a valve state display unit 416. The signal display unit 411 indicates the name and state of the input signal. The device display unit 412 indicates the shape, state, and the like of the device included in the target system. The equipment is, for example, a turbine. The valve display unit 413 indicates the shape, state, etc. of the valve. The terminal display unit 414 indicates the management number of the output destination device. A management number is assigned in advance to a device to be monitored and controlled in the plant. The device status display unit 415 indicates the name, management number, status, etc. of the device. The state of the device is represented by a numerical value, for example. The valve state display unit 416 indicates the name, management number, state, etc. of the valve. The state of the valve is expressed by, for example, open, closed, numerical value, and the like. Further, the valve state display unit 416 may indicate the state of the valve as a color on the valve display unit 413. The signal display unit 411, the device display unit 412, the valve display unit 413, and the terminal display unit 414 are represented by images. These images are stored in advance in the system diagram image database 313 as system diagram image data for each system.

  In response to an instruction input from the user to the input unit 321, the system diagram selection unit 102 sends a synthesis command to the image data synthesis unit 101. The image data synthesis unit 101 generates a system diagram screen by executing the following processing in accordance with the synthesis command. First, the image data composition unit 101 reads system diagram image data that is image data for the system diagram from the system diagram image database 313. The system diagram image data is image data indicating the shape of the device and the symbol of the device included in the target of the system diagram. Next, the image data synthesis unit 101 reads definition information of monitoring control information to be displayed on the system diagram screen from the plant data database 314. The definition information includes, for example, the management number of the target device of the monitoring control information, the type and unit of the target signal, the management number of the destination device, the position where the monitoring control information is displayed on the monitoring screen, and the target symbol Indicates the type. Next, the image data synthesis unit 101 reads the current value of the monitoring control information from the monitoring control information transmission / reception unit 308 according to the read definition information. Next, the image data combining unit 101 generates a system diagram screen by combining the definition information and the current value with the image data.

  Here, the trend graph screen will be described.

  FIG. 4 shows a trend graph screen. The trend graph has, for example, a time change display unit 421 and a list display unit 422. The time change display unit 421 shows a curve of monitoring control information belonging to a certain monitoring control information group. Each curve shows a time change of the corresponding monitoring control information. That is, the horizontal axis indicates time, and the vertical axis indicates the value of each monitoring control information. The monitoring control information group is, for example, a group of monitoring control information related to a certain system or device. The time interval between samples of the monitoring control information is, for example, 1 second. The list display unit 422 indicates the name, number, value, unit, etc. of the monitoring control information belonging to the monitoring control information group. The monitoring control information includes, for example, boiler temperature, power generation amount, water and air flow rates, and the like. Each curve in the time change display unit 421 is numbered, and the number is associated with the number in the list display unit 422.

  In response to an instruction input from the user to the input unit 321, the trend graph selection unit 112 determines a trend graph to be displayed. Next, the trend graph display creation unit 111 reads the current value of the monitoring control information from the monitoring control information transmission / reception unit 308 according to the determined trend graph. Next, the trend graph display creation unit 111 creates a trend graph using the read current value and causes the output unit 322 to display the trend graph.

  Here, the alarm screen will be described.

  FIG. 5 shows an alarm screen. The alarm screen shows a list of alarms. The alarm screen has an entry for each alarm. These entries are arranged in time order. Each entry indicates an alarm, and indicates the alarm number, the name of the alarm, the state of the target of the alarm, and the time when the alarm is issued. For example, the alarm indicates that a failure has occurred in the computer 301 or the control device 305, the boiler temperature is higher than the upper limit, the boiler temperature is lower than the lower limit, or the like.

  The alarm screen creation unit 121 reads an alarm from the monitoring control information from the monitoring control information transmission / reception unit 308 and causes the output unit 322 to display the alarm.

  Hereinafter, a second monitoring control system that is an application example of the present invention and uses a remote information terminal will be described.

  FIG. 6 shows the configuration of the second monitoring control system. Compared with the first monitoring control system, the second monitoring control system has a Web server 15 instead of the computer 301 and newly includes a wireless router 16 and a remote information terminal 17.

  The Web server 15 transmits the monitoring control information to the remote information terminal 17 by wireless communication via the wireless router 16. The remote information terminal 17 displays a monitoring screen similar to that of the output unit 322. There are a plurality of remote information terminals 17 in the thermal power plant.

  Hereinafter, the configuration of the Web server 15 will be described.

  FIG. 7 shows the configuration of the Web server 15. The Web server 15 executes creation of data to be transmitted to the remote information terminal 17, transmission of data to the remote information terminal 17 through the wireless router 16, and reception of data from the remote information terminal 17. Of the constituent elements of the Web server 15, constituent elements denoted by the same reference numerals as the constituent elements of the computer 301 are the same or equivalent.

  The Web server 15 includes a terminal framework 18 in addition to the configuration of the computer 301. The terminal framework 18 is a function for displaying a monitoring screen on the remote information terminal 17, and is a function common to a plurality of types of monitoring screens. The terminal framework 18 includes a transfer unit 181, a data conversion unit 182, a terminal interface 183, and a terminal database 184. The terminal framework 18 is realized by, for example, a program stored in the memory of the Web server 15.

  The web server 15 is, for example, a computer. The computer has a microprocessor, a memory, and a communication interface. The program stored in the memory causes the microprocessor to function as the Web server 15. The communication interface is connected to the router 303 and the wireless router 16.

  The terminal data management process performed by the terminal framework 18 will be described below.

  FIG. 8 shows terminal data management processing. The terminal framework 18 repeatedly executes the following terminal data management process at predetermined time intervals.

  First, the transfer unit 181 acquires and copies the monitoring control information received by the monitoring control information transmission / reception unit 308 from the monitoring control information transmission / reception unit 308 (S11). Further, the transfer unit 181 acquires and copies additional information such as the name of the monitoring control information, the management number, and the upper and lower limit values of the signal from the plant data database 314.

  Next, the data converter 182 generates terminal data to be transmitted to the remote information terminal 17 by converting the monitoring control information and the additional information copied by the transfer unit 181 (S12). The terminal data is data obtained from the monitoring control information and indicates the state of the device to be monitored. The terminal data includes device data used for the system diagram screen, time series data used for the trend graph screen, and alarm data used for the alarm screen. The terminal data is, for example, a numerical value in the monitoring control information. Further, the terminal data may include characters in the monitoring control information. Further, the data conversion unit 182 stores, in the terminal database 184, time-series terminal data such as terminal data used in the trend graph among the information from the transfer unit 181. The data stored in the terminal database 184 is, for example, several hours. The terminal data stored in the trend graph indicates, for example, the coordinates of each point in the trend graph.

  Next, the terminal interface 183 determines whether a request from the remote information terminal 17 has been received (S13).

  When the request from the remote information terminal 17 has not been received (S13: No), the terminal framework 18 ends this flow.

  When the request from the remote information terminal 17 is received (S13: Yes), the terminal framework 18 causes the terminal interface 183 to acquire the terminal data from the data conversion unit 182 according to this request, and to the remote information terminal 17. Transmit (S14), and this flow ends. When the terminal interface 183 receives a request for time series data, the terminal interface 183 acquires time series data from the terminal database 184 and transmits the time series data to the remote information terminal 17.

  The above is the terminal data management processing.

  In addition, when the Web server 15 receives a request for the system diagram screen from the remote information terminal 17, thereafter, the Web server 15 transmits device data for the system diagram screen at every predetermined time interval. Further, the Web server 15 accumulates time series data for the trend graph in the terminal database 184. Further, every time the monitoring control information transmission / reception unit 308 receives the monitoring control information, the data conversion unit 182 generates terminal data based on the received monitoring control information.

  Note that the data conversion unit 182 may send the monitoring control information received by the monitoring control information transmission / reception unit 308 as it is to the terminal interface 183 or the terminal database 184 as the terminal data, or the received monitoring control information A part of the data may be sent to the terminal interface 183 or the terminal database 184 as terminal data.

  Hereinafter, the configuration of the remote information terminal 17 will be described.

  FIG. 9 shows the configuration of the remote information terminal 17. The remote information terminal 17 includes a wireless communication interface 20, a system diagram image database 21, a plant data database 22, a calculation unit 23, and an input / output unit 27.

  The input / output unit 27 displays the screen generated by the calculation unit 23, receives an input from the user, and sends the input to the calculation unit 23. The input / output unit 27 is, for example, a display having a touch panel. The user of the remote information terminal 17 is a supervisor in the plant, for example.

  The calculation unit 23 includes a data update unit 28, a system diagram processing unit 24, a trend graph processing unit 25, an alarm processing unit 26, and a selection unit 29.

  The system diagram image database 21 stores system diagram image data to be displayed on the remote information terminal 17 in advance. This system diagram image data is similar to the system diagram image database 313, but is adapted to the screen size of the remote information terminal 17.

  The wireless communication interface 20 transmits a request to the Web server 15 by performing wireless communication, and receives data necessary for display from the Web server 15. The wireless communication interface 20 may be a wireless LAN (local area network) interface in the plant or a public wireless communication network interface.

  The plant data database 22 stores the definition information of the monitoring control information received from the Web server 15 by the wireless communication interface 20.

  When the wireless communication interface 20 receives the terminal data from the Web server 15, the data update unit 28 sends the received terminal data to the image data composition unit 241 to update the system diagram screen, so that the system diagram screen The terminal data displayed in the inside is updated. Further, when the wireless communication interface 20 receives definition information from the Web server 15, the data update unit 28 updates the plant data database 22 using the received definition information.

  The remote information terminal 17 is, for example, a portable information terminal device such as a mobile phone, a smartphone, or a tablet terminal. This portable information terminal device includes a microprocessor, a memory, and a wireless communication interface 20. The program stored in the memory causes the microprocessor to function as the remote information terminal 17.

  Hereinafter, the monitoring screen display process by the calculation unit 23 will be described.

  FIG. 10 shows the monitoring screen display process. When the input / output unit 27 receives an instruction to start the monitoring screen display process from the user of the remote information terminal 17, the calculation unit 23 starts the monitoring screen display process.

  First, the selection unit 29 causes the input / output unit 27 to display a menu screen for selecting the type of monitoring screen. FIG. 11 shows a menu screen. The menu screen shows a list of types of monitoring screens. That is, the menu screen shows, for example, a system diagram screen, a trend graph screen, and an alarm screen as options. The selection unit 29 acquires the type of the monitoring screen selected on the menu screen from the input / output unit 27, and depending on the type, selects one of the system diagram processing unit 24, the trend graph processing unit 25, and the alarm processing unit 26. The generation of the monitoring screen is instructed (S21). Here, among the system diagram processing unit 24, the trend graph processing unit 25, and the alarm processing unit 26, a function corresponding to the type of the selected monitoring screen is referred to as a target processing unit.

  Next, the selection unit 29 determines the display target of the selected monitoring screen (S22). When the selected monitoring screen is a system diagram screen or a trend graph screen, the selection unit 29 causes the input / output unit 27 to display a display target selection screen for selecting a display target.

  When the system diagram screen is selected, the display target is, for example, the system that is the target of the system diagram screen. The display target selection screen in this case is a system selection screen. FIG. 12 shows a system selection screen. A system | strain shows a fuel system, a turbine, etc., for example. The user designates a plurality of monitoring control information groups displayed on the monitoring control information group selection screen using the input / output unit 27.

  When the trend graph screen is selected, the display target is, for example, a monitoring control information group displayed on the trend graph screen. The display target selection screen in this case is a monitoring control information group selection screen. FIG. 13 shows a monitoring control information group selection screen. The monitoring control information group is, for example, a group of monitoring control information related to a certain system. The user designates a plurality of monitoring control information groups displayed on the monitoring control information group selection screen using the input / output unit 27.

  The selection unit 29 acquires the display target selected on the display target selection screen from the input / output unit 27. When the selected monitoring screen is an alarm screen, the display target is the alarm screen. In this case, the selection unit 29 displays the alarm screen without displaying the display target selection screen.

  Next, the target processing unit acquires terminal data definition information to be displayed on the monitoring screen from the plant data database 22 (S23). Next, the wireless communication interface 20 acquires terminal data necessary for the monitoring screen from the Web server 15 (S24). Here, the wireless communication interface 20 transmits a request for terminal data to the Web server 15, so that the Web server 15 performs the processes of S13 and S14 described above. As a result, the wireless communication interface 20 receives terminal data from the Web server 15. In addition, after transmitting the device data request for the system diagram screen, the wireless communication interface 20 receives the device data from the Web server 15 at predetermined time intervals. Next, the target processing unit generates a monitoring screen based on the acquired terminal data, and causes the input / output unit 27 to display the monitoring screen (S25).

  The calculation unit 23 determines whether the input / output unit 27 has received an instruction to end the monitoring screen display process from the user (S26).

  When the termination instruction has not been received (S26: No), the calculation unit 23 shifts the process to S24.

  When the termination instruction is received (S26: Yes), the calculation unit 23 terminates this flow.

  Here, a method of generating each monitoring screen in S25 described above will be described.

  The system diagram processing unit 24 generates a system diagram screen of the system selected on the system selection screen. The system diagram processing unit 24 includes an image data composition unit 241 and a system diagram selection unit 242. The configuration of each monitoring screen displayed on the remote information terminal 17 is the same as the configuration of each monitoring screen displayed on the HMI 302, but is adjusted according to the screen size.

  The system diagram selection unit 242 sends a synthesis command for the selected system diagram screen to the image data synthesis unit 241. Next, the wireless communication interface 20 transmits a request for device data belonging to the selected system diagram screen to the Web server 15. The image data composition unit 241 generates a system diagram screen by executing the following processing in accordance with the composition command. First, the image data synthesis unit 241 reads image data for a system diagram from the system diagram image database 21. Next, the image data synthesis unit 241 reads terminal data definition information to be displayed in the system diagram from the plant data database 22. Next, the image data composition unit 241 reads device data out of the terminal data from the wireless communication interface 20 in accordance with the read definition information. The device data indicates, for example, the current value of the device state. Next, the image data combining unit 241 generates a system diagram screen by combining the definition information and the current value with the image data, and causes the input / output unit 27 to display the system diagram screen.

  Since the system diagram image database 21 stores in advance the image data to be displayed on the system diagram screen, it is not necessary to transmit the image data from the Web server 15 to the remote information terminal 17.

  The trend graph processing unit 25 generates a trend graph screen showing a time change of the monitoring control information group selected on the monitoring control information group selection screen. The trend graph processing unit 25 includes a trend graph display creation unit 251 and a trend graph selection unit 252.

  The trend graph selection unit 252 selects a trend graph for displaying the selected monitoring control information group. Next, the wireless communication interface 20 transmits a request for time-series data belonging to the selected monitoring control information group to the Web server 15. Next, the trend graph display creation unit 251 reads time-series data belonging to the selected monitoring control information group from the wireless communication interface 20 among the terminal data in accordance with the selected trend graph. Next, the trend graph display creation unit 251 creates a trend graph screen using the read time series data and displays the trend graph screen on the input / output unit 27. The data updating unit 28 may update the terminal data displayed in the trend graph screen by sending the latest terminal data to the trend graph display creating unit 251 and updating the trend graph screen. .

  When activated, the alarm processing unit 26 generates an alarm screen. The alarm processing unit 26 includes an alarm screen creation unit 261.

  The wireless communication interface 20 transmits a request for alarm data to the Web server 15. The alarm screen creation unit 261 reads alarm data from the terminal data from the wireless communication interface 20 and causes the input / output unit 27 to display the alarm data. Note that the data update unit 28 may update the alarm data displayed in the alarm screen by sending the latest alarm data to the alarm screen creation unit 261 and updating the alarm screen.

  The above is the method for generating each monitoring screen.

  The terminal data may be monitoring control information or a part of the monitoring control information.

  The performance of the remote information terminal 17 is lower than that of the computer 301 and the Web server 15. If the Web server 15 transmits image data for the system diagram to the remote information terminal 17 at every update time interval, there may be a delay in updating the system diagram due to a load such as transmission / reception in the remote information terminal 17. According to the present embodiment, the image data to be displayed by the remote information terminal 17 is stored in advance, so that the Web server 15 transmits the terminal data to the remote information terminal 17. Accordingly, the information amount of the transmission data can be reduced compared with the case where the Web server 15 transmits the image data, and the load on the remote information terminal 17 is reduced. Thereby, the remote information terminal 17 can display the plant state in real time. Thereby, the user of the remote information terminal 17 can monitor the plant at any place in the plant.

  In the first monitoring control system, when a communication device such as the control device 305 or the computer 301 transmits / receives the monitoring control information via a dedicated network in the plant, the monitoring control information is transmitted to the definition information of each communication device. It is necessary to define the destination and destination. When the Web server 15 is constructed to introduce the remote information terminal 17 as in the second monitoring control system described above, it is necessary to define the Web server 15 in the transmission / reception definition information of all communication devices in the plant. Therefore, there is a problem that the amount of work is large and the work is not easy. According to this embodiment, the Web server 15 can be constructed by adding a Web server function as the terminal framework 18 to the computer 301. As a result, it is not necessary to change definition information or the like in the apparatus of the entire monitoring control system, so that remodeling can be minimized.

  The techniques described in the above embodiments can be expressed as follows.

(Expression 1)
An input unit for receiving instructions from the user;
A wireless communication unit that receives state data indicating a state of a device to be monitored from the server device via wireless communication;
An image data storage unit for storing image data of a system diagram indicating a system including the device;
A screen generation unit that reads out the image data from the image data storage unit according to the instruction, generates a system diagram screen by combining the received state data and the read image data,
A portable information terminal device comprising: a display unit that displays the system diagram screen.

(Expression 2)
A receiving unit for receiving monitoring data obtained by monitoring the device;
A system diagram showing a system including the equipment is shown. Regarding the image data stored in the portable information terminal device, state data added to the image data and displayed by the portable information terminal device is used as the monitoring data. A data generation unit to generate based on
A server device comprising: a communication unit that transmits the state data to the portable information terminal device.

(Expression 3)
The server device receives the monitoring data obtained by monitoring the device,
For the image data stored in the portable information terminal device, the server device shows a system diagram showing a system including the device, and status data added to the image data and displayed by the portable information terminal device , Based on the monitoring data,
The server device transmits the state data to the portable information terminal device;
The portable information terminal device accepts instructions from the user,
The portable information terminal device receives the state data from the server device via wireless communication;
In response to the instruction, the portable information terminal device reads the image data from an image data storage unit that stores the image data,
The portable information terminal device generates a system diagram screen by combining the received state data and the read image data,
A device monitoring method comprising: the portable information terminal device displaying the system diagram screen.

(Expression 4)
A server device;
A portable information terminal device that performs wireless communication with the server device,
The portable information terminal device
An input unit for receiving instructions from the user;
A wireless communication unit that receives state data indicating a state of a device to be monitored from the server device via wireless communication;
An image data storage unit for storing image data of a system diagram indicating a system including the device;
A screen generation unit that reads out the image data from the image data storage unit according to the instruction, generates a system diagram screen by combining the received state data and the read image data,
A display unit for displaying the system diagram screen;
The server device
A receiving unit for receiving monitoring data obtained by monitoring the device;
A data generation unit that generates the state data based on the monitoring data;
A device monitoring system comprising: a communication unit that transmits the state data to the portable information terminal device.

  Terms in these expressions will be described. The portable information terminal device corresponds to the remote information terminal 17, for example. The server device corresponds to the Web server 15, for example. The state data corresponds to terminal data, for example. The wireless communication unit corresponds to the wireless communication interface 20, for example. The image data storage unit corresponds to, for example, the system diagram image database 21. The screen generation unit corresponds to the calculation unit 23, for example. The display unit corresponds to the input / output unit 27, for example. The image data corresponds to, for example, system diagram image data. The graph screen corresponds to, for example, a trend graph screen. For example, the reception unit corresponds to the monitoring control information transmission / reception unit 308. For example, the data generation unit corresponds to the transfer unit 181 and the data conversion unit 182. The communication unit corresponds to the terminal interface 183. The time series data storage unit corresponds to the terminal database 184, for example.

15: Web server, 16: Wireless router, 17: Remote information terminal, 18: Framework for terminal, 19: Data update unit, 20: Wireless communication interface, 21: System diagram image database, 22: Plant data database, 23: Calculation unit 24: System diagram processing unit 25: Trend graph processing unit 26: Alarm processing unit 27: Input / output unit 28: Data update unit 29: Selection unit 181: Transfer unit 182: Data conversion unit 183: Terminal interface, 184: Terminal database, 214: Plant data database, 241: Image data synthesis unit, 242: System diagram selection unit, 251: Trend graph display creation unit, 252: Trend graph selection unit, 261: Alarm screen creation part.

Claims (10)

An input unit for receiving instructions from the user;
A wireless communication unit that receives state data indicating a state of a device to be monitored from the server device via wireless communication;
An image data storage unit for storing image data of a system diagram indicating a system including the device;
A screen generation unit that reads out the image data from the image data storage unit according to the instruction, generates a system diagram screen by combining the received state data and the read image data,
A portable information terminal device comprising: a display unit that displays the system diagram screen. The wireless communication unit receives new status data from the server device after displaying the system diagram screen,
The screen generation unit updates the system diagram screen based on the new state data.
The portable information terminal device according to claim 1. The state data is a numerical value indicating the state of the device.
The portable information terminal device according to claim 1 or 2. When the instruction indicates an indication of a time change in the state of the device, the wireless communication unit transmits a request to the server device based on the instruction, so that the time series state of the device is determined from the server device. Receive the time series data shown,
The screen generation unit generates a graph screen showing a time change of the state of the device based on the time series data,
The display unit displays the graph screen;
The portable information terminal device according to any one of claims 1 to 3. When the instruction indicates an alarm display, the wireless communication unit receives alarm data indicating an alarm from the server device by transmitting a request to the server device based on the instruction,
The screen generation unit generates an alarm screen indicating the alarm based on the alarm data,
The display unit displays the alarm screen;
The portable information terminal device according to any one of claims 1 to 4. When one of a plurality of screens including the system diagram screen, the graph screen, and the alarm screen is selected by the instruction, the wireless communication unit requests a data to be used for the selected screen. Transmitting to the server device;
The portable information terminal device according to any one of claims 1 to 5. A receiving unit for receiving monitoring data obtained by monitoring the device;
A system diagram showing a system including the equipment is shown. Regarding the image data stored in the portable information terminal device, state data added to the image data and displayed by the portable information terminal device is used as the monitoring data. A data generation unit to generate based on
A server device comprising: a communication unit that transmits the state data to the portable information terminal device. When the reception unit receives new monitoring data, the data generation unit generates new state data based on the new monitoring data,
The communication unit transmits the new state data to the portable information terminal device.
The server device according to claim 7. A time-series data storage unit for storing time-series data indicating a time-series state of the device;
When the communication unit receives the time-series data request from the portable information terminal device, the time-series data stored in the time-series data storage unit is transmitted to the portable information terminal device.
The server device according to claim 7 or 8. The server device receives the monitoring data obtained by monitoring the device,
For the image data stored in the portable information terminal device, the server device shows a system diagram showing a system including the device, and status data added to the image data and displayed by the portable information terminal device , Based on the monitoring data,
The server device transmits the state data to the portable information terminal device;
The portable information terminal device accepts instructions from the user,
The portable information terminal device receives the state data from the server device via wireless communication;
In response to the instruction, the portable information terminal device reads the image data from an image data storage unit that stores the image data,
The portable information terminal device generates a system diagram screen by combining the received state data and the read image data,
A device monitoring method comprising: the portable information terminal device displaying the system diagram screen.

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