JP2019040627A - Machine maintenance device, machine maintenance method, machine maintenance program, and recording medium - Google Patents

Abstract

To provide a machine maintenance device, a machine maintenance method, a machine maintenance program, and a recording medium displaying transition of machine information in an easily understandable manner.SOLUTION: A machine maintenance device includes: a machine information acquisition part acquiring machine information of a machine subjected to maintenance; and a display part displaying, for each machine, comparative display generated based on a transition of a set value of the machine included in the acquired machine information from a previously acquired set value.SELECTED DRAWING: Figure 11

Description

  The present invention relates to a device maintenance apparatus, a device maintenance method, a device maintenance program, and a recording medium.

  Conventionally, chemical and industrial plants, plants that manage and control wells such as gas fields and oil fields, and their surroundings, plants that manage and control power generation such as hydropower, thermal power, and nuclear power, and environmental power generation such as solar and wind power In a plant to be controlled, a plant or factory such as a plant to manage and control water and sewage, a dam, etc. (hereinafter referred to as “plant” when collectively referred to as these), a field device called a measuring instrument or an operating device A distributed control system (DCS: Distributed Control System) in which devices and control devices that control these devices are connected via communication means is constructed, and high-level automatic operation is realized. In a plant in which such a distributed control system is constructed, maintenance of field devices (hereinafter may be abbreviated as “device”) by an operator is performed from the viewpoint of preventing abnormal operation and maintaining measurement accuracy. Performed regularly or irregularly.

  The maintenance of the field device is performed using, for example, a device maintenance device capable of wired communication or wireless communication with the field device. This device maintenance apparatus is, for example, a notebook or tablet computer, a PDA (Personal Digital Assistant), a smartphone, or the like in which a dedicated program for maintaining field devices is installed. A field device can hold one or more pieces of device information. The device information is information related to the field device, for example, information for setting the operation of the field device, information indicating the state of the field device, or identification information of the field device. The device maintenance apparatus can read and check the device information set in the field device, set new device information for the field device, or change the device information set in the field device.

  The device maintenance device has a device that can display the changed device information on the display unit of the device maintenance device and check the change of the device information when the device information set in the field device is changed for the field device. Yes (see, for example, Patent Document 1).

  Moreover, in the plant monitoring apparatus which displays the numerical information which processed the process data of a plant, there exists a thing which displays the transition (trend) of the numerical information which processed the process data in a predetermined period on a display apparatus (for example, patent document) 2).

JP2015-109011A JP 2013-222316 A

  However, depending on the field device usage status, field device type, maintenance work execution status, etc., device information confirmation, setting or change (hereinafter referred to as “device information confirmation, etc.”) work frequency (including irregular) ) Are different, depending on the device information, the period for grasping the transition of the device information may not be appropriate. That is, for example, device information that is changed at a daily frequency can grasp the transition in a relatively short period, but device information that is changed at a frequency of once a month grasps the transition unless the period is longer. The period in which the transition can be grasped may be different. Further, it may be difficult to understand the contents of the changed device information and judge the influence of the change of the device information only by displaying the changed device information on the display unit of the device maintenance apparatus.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a device maintenance apparatus, a device maintenance method, a device maintenance program, and a recording medium that easily display the transition of device information.

  (1) In order to solve the above-described problem, the device maintenance apparatus of the present invention is a device maintenance apparatus that acquires device information of a device to be maintained, and selects a comparison target for selecting a comparison target of the acquired device information. And a display unit that displays a comparison display generated based on the transition of the device information from the selected comparison target for each device.

  (2) The device maintenance apparatus of the present invention further includes an information type selection unit that selects a type of device information for displaying the comparison display, and the display unit displays the comparison display of the selected type. To do.

  (3) Further, in the device maintenance apparatus of the present invention, the information type selection unit selects the type for each type of the device.

  (4) Moreover, in the device maintenance apparatus of the present invention, the information type selection unit selects the type for each communication type of the device.

  (5) Moreover, in the apparatus maintenance apparatus of this invention, the display aspect selection part which selects the display aspect of the said comparison display is further provided, and the said display part displays the said comparison display with the selected said display aspect.

  (6) In the device maintenance apparatus of the present invention, the display mode selection unit selects at least one of the display modes of an arrow, a predetermined symbol, the difference between the device information, a character, and a graph.

  (7) Moreover, in the device maintenance apparatus of the present invention, the display mode selection unit selects the display mode for each type of the device.

  (8) Moreover, in the device maintenance apparatus of the present invention, the display mode selection unit selects the display mode for each communication type of the device.

  (9) In order to solve the above problems, the device maintenance method of the present invention includes a device information acquisition step for acquiring device information of a device to be maintained, and a comparison target selection step for selecting a comparison target of the acquired device information. And a display step of displaying, for each device, a comparison display generated based on the transition of the device information from the selected comparison target.

  (10) In order to solve the above problem, the device maintenance program of the present invention includes a device information acquisition process for acquiring device information of a device to be maintained, and a comparison target selection process for selecting a comparison target of the acquired device information. And a display process for displaying, for each device, a comparison display generated based on the transition of the device information from the selected comparison target.

  (11) In order to solve the above problem, the recording medium of the present invention includes a device information acquisition process for acquiring device information of a maintenance target device, and a comparison target selection process for selecting a comparison target of the acquired device information. A device maintenance program for causing a computer to execute a display process for displaying, for each device, a comparison display generated based on the transition of the device information from the selected comparison target is recorded.

  According to the present invention, it is possible to provide a device maintenance device, a device maintenance method, a device maintenance program, and a recording medium that easily display the transition of device information.

It is a block diagram which shows an example of the hardware constitutions of the apparatus maintenance apparatus in embodiment. It is a block diagram which shows an example of a function structure of the apparatus maintenance apparatus in embodiment. It is a flowchart which shows an example of the setting process of the comparison display of the apparatus maintenance apparatus in embodiment. It is a flowchart which shows an example of the display process of the comparison display of the apparatus maintenance apparatus in embodiment. It is a figure which shows an example of the setting screen of the comparison object of the comparison display which the apparatus maintenance apparatus in embodiment displays. It is a figure which shows an example of selection of the kind of apparatus information displayed on the comparison display in embodiment. It is a figure which shows an example of selection of the kind of apparatus information displayed on the comparison display in embodiment. It is a figure which shows an example of selection of the kind of apparatus information displayed on the comparison display in embodiment. It is a figure which shows an example of the information type selection screen and display mode selection screen which the apparatus maintenance apparatus in embodiment displays. It is a figure which shows an example of the main screen which the apparatus maintenance apparatus in embodiment displays. It is a figure which shows an example of the comparison display of the main screen which the apparatus maintenance apparatus in embodiment displays. It is a figure which shows an example of the display aspect of the comparison display by the direction of the arrow which the apparatus maintenance apparatus in embodiment displays.

  Hereinafter, a device maintenance apparatus, a device maintenance method, a device maintenance program, and a recording medium according to an embodiment of the present invention will be described in detail with reference to the drawings.

  First, the hardware configuration of the device maintenance apparatus will be described with reference to FIG. FIG. 1 is a block diagram illustrating an example of a hardware configuration of the device maintenance apparatus 1 according to the embodiment.

In FIG. 1, the device maintenance apparatus 1 is a CPU (Central Processing).
1, a RAM (Random Access Memory) 12, a ROM (Read Only Memory) 13, a HDD (Hard Disk Drive) 14, a touch panel 15, a communication I / F (Interface) 16, and a card slot 17. The device maintenance apparatus 1 is connected to the field device 2 so as to be communicable.

  The device maintenance device 1 is a general-purpose device such as a notebook PC, a tablet PC, a PDA, or a smartphone, or a device dedicated to device maintenance. The device maintenance apparatus 1 includes a device maintenance program for performing maintenance of field devices, and supports maintenance work of field devices by executing the device maintenance program. The equipment maintenance apparatus 1 is carried in the plant by an operator who performs maintenance work, and is operated by the operator.

  The CPU 11 controls the device maintenance apparatus 1 by executing a program stored in the RAM 12, the ROM 13 or the HDD 14. The device maintenance program is acquired from, for example, a recording medium that records the device maintenance program or a server that provides the device maintenance program via a network, is installed in the HDD 14, and is stored in the RAM 12 so as to be readable from the CPU 11.

The touch panel 15 has an operation display function having an operation input function and a display function. The touch panel 15 displays information such as maintenance information related to the maintenance of the field device. In addition, the touch panel 15 enables an operator to input an operation using a fingertip or a touch pen.
Although the apparatus maintenance apparatus 1 in this embodiment demonstrates the case where the touchscreen 15 which has an operation display function is used, the apparatus maintenance apparatus 1 has a display device which has a display function, and an operation input device which has an operation input function. There may be. In this case, in the present embodiment, the display screen of the touch panel 15 can be implemented as a display screen of a display device, and the operation of the touch panel 15 can be implemented as an operation of an operation input device. Note that the touch panel 15 may be realized in various forms such as a head mount type, a glasses type, and a wristwatch type display.

  The communication I / F 16 is, for example, a network adapter that controls communication with the field device 2 or communication with other devices via wired communication or wireless communication. Examples of other devices include other device maintenance devices, maintenance information management servers that manage maintenance information, DCS (Distributed Control System) control devices, FA (Factory Automation) computers, PLCs (Programmable), not shown. Logic Controller).

The communication I / F 16 controls communication with the field device 2 using a communication protocol that can be used in the field device 2. Various communication protocols are used in various field devices 2 used in the plant. Accordingly, the communication I / F 16 controls communication with the field device 2 in a communication type such as a communication protocol corresponding to each field device 2. For example, the communication I / F 16 is an ISA (International
It controls communication with the field device 2 that uses ISA100, which is a wireless communication standard of Society of Automation (International Society for Measurement and Control). In addition, the communication I / F 16 is HART (Highway Addressable Remote).
Communication with the field device 2 that uses a communication type dedicated to industrial instruments such as Transducer (registered trademark), BRAIN (registered trademark), FOUNDATION Fieldbus, and PROFIBUS may be controlled. Further, the communication I / F 16 may control communication with the field device 2 or the DCS that uses a general-purpose communication type such as wireless LAN communication, wired LAN communication, infrared communication, and short-range wireless communication.

  The card slot 17 is a slot for inserting a PC card. The card slot 17 enables the function of the PC card inserted in the device maintenance apparatus 1. For example, the PC card can provide a communication function and a storage function for realizing specific communication.

The field device 2 to which the device maintenance device 1 is communicably connected is, for example, an input device that inputs a signal of a physical quantity (pressure, temperature, etc.) to the device maintenance device 1 such as a differential pressure gauge, a thermometer, a flow meter, Or it is an output device which outputs the control signal which changes the opening degree of a control valve from apparatus maintenance apparatuses 1, such as a control valve. In FIG. 1, the field device 2 is omitted and only one is illustrated. However, as described above, various field devices 2 are used in the plant, and the device maintenance apparatus 1 is connected to a plurality of field devices 2.
Above, description of the hardware constitutions of the apparatus maintenance apparatus 1 using FIG. 1 is complete | finished.

  Next, the functional configuration of the device maintenance apparatus will be described with reference to FIG. FIG. 2 is a block diagram illustrating an example of a functional configuration of the device maintenance apparatus 100 according to the embodiment. Note that FIG. 1 will be referred to as appropriate in the following description.

  2A, the device maintenance apparatus 100 has functions of a communication unit 101, a device information storage unit 102, a display data generation unit 103, a maintenance execution unit 104, and a maintenance information storage unit 105. The above functions of the device maintenance apparatus 100 can be realized by executing a program in the CPU 11 shown in FIG. That is, each function of the device maintenance apparatus 100 is a functional module realized by software.

  The communication unit 101 obtains parameters of the field device 2 by controlling communication with the field device 2 or communication with other devices via the communication I / F 16. The parameter of the field device 2 is an example of device information of the field device 2, and in the present embodiment, the device information and the parameter are described as synonymous.

  The parameters of the field device 2 include, for example, information for specifying the field device 2 such as a device tag, device address, manufacturer, device ID or device type, model name, communication standard, etc. For example, information indicating the state of the field device 2, or a measured value measured by the field device 2. That is, the parameter may include a fixed value such as a device ID or a variable value such as a field device setting value or a measured value. Note that the comparison of parameters acquired from the field device 2 described below is a comparison when the parameters are variable values.

  The communication unit 101 performs parameter setting, parameter reading, parameter confirmation, and the like of the field device 2 having a communication type (communication standard) such as ISA100, HART, and BRAIN depending on the communication type controlled by the communication unit 101. The communication unit 101 may perform control such as wireless LAN communication, wired LAN communication, infrared communication, and short-range wireless communication. The communication unit 101 may include a program module for performing control corresponding to each communication. The communication unit 101 may add and install a program module necessary for each communication. The communication unit 101 can automatically (or manually) recognize the field device 2 connected via the communication I / F 16 and acquire parameters of the recognized field device 2.

  The acquisition of the parameters of the field device 2 is not limited to the acquisition of information by communication as described above. For example, the operator visually confirms the tag name or model name of the field device 2 and inputs a key, or photographs the name plate of the field device 2 with the tag name or model name written on the device maintenance apparatus 1. Then, the tag name or model name may be recognized from the photographed image and acquired from the field device 2.

  In addition, the timing of acquiring the parameters of the field device 2 is arbitrary. For example, parameter acquisition is performed irregularly by the execution of maintenance items by the operator. Further, the parameter acquisition may be periodically performed at a predetermined cycle (frequency) according to the type of the field device 2 such as the type of the field device 2 or the communication type.

  The device information storage unit 102 stores device information (parameters) of the field device 2 and maintenance item information corresponding thereto. The maintenance items stored in the device information storage unit 102 include confirmation of parameters set in the field device 2, setting of parameters for the field device 2, predetermined tests, predetermined adjustments, and the like. The maintenance item may include an output of a report for reporting the execution result of the maintenance item. The maintenance items stored by the device information storage unit 102 in this embodiment are, for example, loop test (loop test), zero point adjustment, span adjustment, one-touch report, detailed diagnostic information display, tag / address / roll setting, setting Setting / removing restrictions, DTM (Device Type Manager) installation, DD (Device Description) installation, parameter acquisition, valve calibration, device squeak, ISA100 provisioning, device on / off service switching, service mode switching This is a partial stroke test (partial operation inspection) of the valve.

  The device information storage unit 102 associates each field device 2 with a maintenance item executed in the field device 2 and stores the associated information in a readable manner. The device information storage unit 102 can associate one or a plurality of maintenance items with one field device 2. Among the maintenance items, there are maintenance items that can be executed in a predetermined field device 2 and maintenance items that cannot be executed. For example, the maintenance item for valve calibration can be executed in the field device 2 having a valve, but cannot be executed in the field device 2 such as a thermometer having no valve. The device information storage unit 102 stores maintenance items that can be executed in each field device 2 in association with the field device 2. The association between the parameter of the field device 2 and the maintenance item can be performed, for example, based on a setting file in which the correspondence is set in advance. For example, information such as a device type and a communication standard may be associated with a maintenance item in the setting file. Further, the association between the field device 2 and the maintenance item may be arbitrarily set by the operator. The association between the field device 2 and the maintenance item may be set by the operator when the maintenance item is executed.

  In the field device 2, there may be a case where maintenance items are not associated (zero maintenance items are associated). For example, it is possible to indicate that maintenance work is not necessary for field devices 2 that are out of order or not in use by storing that no maintenance items are associated. The device information storage unit 102 may store the associated information in, for example, the HDD 14.

  In addition, the device information storage unit 102 stores parameters acquired in the past from field devices. The parameter of the field device 2 may be different for each type of the field device 2. For example, the content of the parameter differs depending on whether the type of the field device 2 is an input device such as a differential pressure gauge or an output device such as a valve. In addition, the parameters of the field device 2 may be different for each communication type of the field device 2. For example, the content of the parameter differs when the communication type of the field device 2 is ISA100 and when it is HART. That is, the device information storage unit 102 can store parameters having different contents for each field device 2 acquired at different timings for each field device 2. In the present embodiment, a comparison display for comparing and displaying a parameter acquired in the past from the field device 2 and a parameter acquired thereafter is displayed on the touch panel 15. The comparison display is a display that is generated based on the transition of the parameter to be compared and is used for causing the operator to recognize the transition of the parameter. The comparison display is a figure, a character, an icon, a symbol, a parameter difference value, a graph, or the like that allows the operator to recognize the transition of the parameter. An example of the comparison display will be described later with reference to FIG. The parameter to be compared can be selected from an information type selection screen described later. The device information storage unit 102 makes it possible to select a parameter stored from the information type selection screen by storing parameters acquired in the past.

  The display data generation unit 103 generates display data to be displayed on the touch panel 15. In the present embodiment, the display data generation unit 103 has the function shown in FIG. In FIG. 2B, the display data generation unit 103 has functions of a comparison target selection unit 201, an information type selection unit 202, a display mode selection unit 203, and a device information display unit 204.

  The comparison target selection unit 201 generates a comparison target selection screen for selecting a comparison target and displays the comparison target selection screen on the touch panel 15 to enable selection. In the following description, generating a selection screen and acquiring a selection result is referred to as “selecting”. That is, the comparison target selection unit 201 selects a comparison target of the acquired device information. The comparison target is a target for comparing parameters of the field device 2. The parameter comparison is performed by comparing a parameter acquired in the past with a parameter acquired thereafter. The method for selecting the comparison target by the comparison target selection unit 201 is arbitrary. The parameter to be compared is an arbitrary number of 2 or more. An example of a method for selecting a comparison target by the comparison target selection unit 201 will be described later with reference to FIG.

The information type selection unit 202 generates an information type selection screen for selecting the type of parameter for displaying the comparison display, and displays it on the touch panel 15. That is, the information type selection unit 202 selects the type of device information for displaying the comparison display. The parameter type is a parameter type acquired from each field device 2, and has several tens of types of parameters depending on the field device 2. The information type selection unit 202 makes it possible to select a comparison display to be displayed on the touch panel 15 from the parameters acquired from the field device 2.
Examples of parameter types will be described later with reference to FIGS.

  Further, the information type selection unit 202 displays the selection of the parameter type so that it can be selected for each type (model type) of the field device 2. As described above, there are several tens of types of parameters depending on the field device 2, but the types of parameters are the same when the types of the field devices 2 are the same (including the case where some of the parameter types are the same). ). Therefore, by setting the parameter type for displaying the comparison display for each type of the field device 2, it is possible to set the same model at a time and to improve the efficiency of the setting work.

  Further, the information type selection unit 202 displays the selection of the parameter type so that it can be selected for each communication type of the field device 2. The parameter type is the same when the communication type of the field device 2 is the same (including the case where a part of the parameter type is the same). Therefore, by setting the type of parameter for displaying the comparison display for each communication type of the field device 2, it is possible to set the same communication type at a time, and the setting work can be made more efficient.

  The display mode selection unit 203 generates a display mode selection screen for selecting a display mode for comparison display, and displays it on the touch panel 15. That is, the display mode selection unit 203 selects a display mode for comparison display. The display mode of the comparative display includes the type of comparative display (type of display symbol), display color, display size, display position, display order with respect to other comparative displays, and the like. The display mode of the comparative display may include non-display of the comparative display. An example of the display mode selection screen will be described later with reference to FIG.

  The device information display unit 204 generates a main screen and displays it on the touch panel 15. The main screen is, for example, a display that is displayed first after the device maintenance apparatus 1 is activated. The main screen may be displayed after the device maintenance apparatus 1 is activated, after a login operation is performed on a login screen (not shown), or after initial setting. The device information display unit 204 displays the parameters of the field device 2 acquired through communication connection by the communication unit 101 on the main screen. The device information display unit 204 may display the acquired parameters of the plurality of field devices 2 for each device. The device information display unit 204 displays the comparison display of the parameter selected by the information type selection unit 202 on the main screen in the display mode selected by the display mode selection unit 203. In the present embodiment, the case where the device information display unit 204 displays the parameter acquired from the field device 2 and the comparison display together will be described later with reference to FIG. However, the device information display unit 204 may display the field device parameters and the comparison display on separate positions or on separate display screens.

In the present embodiment, “display” includes displaying an image on the touch panel 15 and generating image data to be displayed on the touch panel 15.
Further, in the present embodiment, the “display unit” refers to a display device (hardware device) such as the touch panel 15 and may have a function of generating display data to be displayed on the display device. That is, the display data generation unit 103 that generates display data to be displayed on the touch panel 15 is an aspect of the display unit.

  The maintenance execution unit 104 causes the field device 2 to execute maintenance items in accordance with an operation such as pressing of the execution button by the operator. The maintenance item is executed for each operated maintenance item. For example, when one maintenance item execution button is operated, one maintenance item is executed. The maintenance execution unit 104 may perform, for example, settings related to maintenance items, display of the progress status of maintenance items, or display of execution results of maintenance items.

The maintenance information storage unit 105 stores the result of the maintenance item executed by the maintenance execution unit 106.
The result of the maintenance item is, for example, a maintenance item execution date and time, a maintenance item execution result, a maintenance plan based on the maintenance item execution result, or the like. The result of the maintenance item stored in the maintenance information storage unit 107 may be read by the device information display unit 204 and compared in the comparison display.

In FIG. 2, the functions of the communication unit 101, the device information storage unit 102, the display data generation unit 103, the maintenance execution unit 104, and the maintenance information storage unit 105 included in the device maintenance apparatus 10 are realized by software. Explained the case. However, the one or more functions of the device maintenance apparatus 10 may be realized by hardware. In addition, each function of the device maintenance apparatus 10 may be implemented by dividing one function into a plurality of functions. In addition, each of the functions that the device maintenance apparatus 10 has may be implemented by integrating two or more functions into one function.
Above, description of the function structure of the equipment maintenance apparatus 100 using FIG. 2 is complete | finished.

Next, comparison display setting processing and comparison display display processing will be described with reference to FIGS. 3 and 4.
First, FIG. 3 is a flowchart illustrating an example of a comparison display setting process of the device maintenance apparatus 100 according to the embodiment.
Note that the processing of the device maintenance apparatus 100 described with reference to FIGS. 3 and 4 can be performed, for example, by the CPU 11 of the device maintenance apparatus 100 executing each function described with reference to FIG. In the following description, FIGS. 1 and 2 are referred to as appropriate.

  In FIG. 3, the device maintenance apparatus 100 determines whether or not to set the comparison display individually for the field device 2 (step S11). Whether or not to set the comparison display individually for the field device 2 can be determined based on, for example, whether or not a tag ID or the like for specifying the field device 2 is input on the information type selection screen described later. When it is determined that the comparison display is set individually (step S11: YES), the device maintenance apparatus 100 sets the selection of the parameter (device information) to be displayed as the comparison display to be an individual selection (step S12). . By individually selecting the parameters, it is possible to select individual parameters for a specific field device such as the field device 2 that requires attention for monitoring.

  On the other hand, when it is determined that the comparison display is not set individually (step S11: NO), the device maintenance apparatus 100 determines whether the comparison display is set according to the device type of the field device 2 (step S13). ). Whether or not to set the comparison display based on the device type of the field device 2 can be determined, for example, based on whether or not the type of the field device 2 is selected on the device type selection screen described later. When it is determined that the comparison display is set by the device type (step S13: YES), the device maintenance apparatus 100 sets the selection of the parameter to be displayed as the comparison display to be the device type selection (step S14). By selecting the device type as the parameter selection, for example, it is possible to collectively set a parameter comparison display common to the device types.

  On the other hand, when it is determined that the comparison display setting is not performed by the device type (step S13: NO), the device maintenance apparatus 100 determines whether the comparison display setting is performed by the communication type of the field device 2 (step S13). S15). Whether or not to set the comparison display based on the communication type of the field device 2 can be determined based on, for example, whether or not the communication type of the field device 2 is selected on the communication type selection screen described later. When it is determined that the comparison display is set by the communication type (step S15: YES), the device maintenance apparatus 100 sets the selection of the parameter to be displayed as the comparison display to the communication type selection (step S16). By selecting the communication type as the parameter selection, for example, it is possible to collectively set the parameter comparison display common to the communication types.

  On the other hand, when it is determined that the comparison display is not set by the communication type (step S15: NO), the device maintenance apparatus 100 returns to the process of step S11, and in the processes of steps S11 to S15, individual parameter selection, It waits for selection of either selection by device type or selection by communication type. Note that when the setting of the comparison display is interrupted by waiting for any selection to be made, for example, by closing each setting screen, the processing shown in the flowchart of FIG. 3 is terminated.

  After executing the processing of step S12, step S14 or step S16, the device maintenance apparatus 100 displays a selection screen for parameters (device information) for comparison display, and sets the selection result (step S17). The parameter selection screen is different when individual selection is set in the process of step S12, when device type selection is set in the process of step S14, or when communication type selection is set in the process of step S16. . The device maintenance apparatus 100 sets the parameter selected on each setting screen as a parameter to be displayed as a comparison display, and refers to it in the comparison display display process described in FIG. The parameter selection screen when individual selection is set will be described later with reference to FIG. A parameter selection screen when the device type selection is set will be described later with reference to FIG. The parameter selection screen when the communication type selection is set will be described later with reference to FIG. The setting of the selected parameter is stored in, for example, the HDD 14 in FIG.

  After executing the processing of step S17, the device maintenance apparatus 100 displays a comparison target selection screen for selecting a comparison target for comparison display, sets a selection result (step S18), and is shown in the flowchart of FIG. End the process. The comparison target selection screen will be described later with reference to FIG. In FIG. 3, the comparison target selection process in step S <b> 17 is shown to be performed continuously with the processes in step S <b> 11 to step S <b> 16. It may be performed separately from the processing.

  FIG. 4 is a flowchart illustrating an example of display processing of the comparison display of the device maintenance apparatus in the embodiment. The comparison display display process shown in the flowchart of FIG. 4 is a process executed after the comparison display setting process shown in the flowchart of FIG. 3 is executed.

  In FIG. 4, the device maintenance apparatus 100 performs communication connection processing with the field device 2 (step S21). The communication connection process may be either a wired connection or a wireless connection. In the case of wired connection, for example, it is performed by connecting a terminal of the device maintenance apparatus 100 to a predetermined terminal of the field device. The communication connection process is executed according to the connection procedure for each communication type.

  After executing the process of step S <b> 21, the device maintenance apparatus 100 acquires parameters (device information) from the field device 2. The acquired parameter is stored in the HDD 14, for example. The method for acquiring the device information is arbitrary. For example, the device maintenance apparatus 100 may acquire parameters automatically or manually after the communication connection process of step S21 is performed. The device maintenance apparatus 100 automatically acquires the parameters at predetermined time intervals. Parameters may be acquired. In addition, the device maintenance apparatus 100 may automatically acquire parameters according to a predetermined acquisition schedule determined in advance.

  After executing the process of step S22, the device maintenance apparatus 100 executes a comparison target search process. The comparison target search process is a process of searching for a parameter to be compared with the parameter acquired in the process of step S22. In the search, the comparison target parameter set in the process of step S18 in the parameters set in the process of step S17 in FIG. 3 is set as the search target (search condition). The device maintenance apparatus 100 searches a parameter to be searched from parameters acquired from the field device 2 in the past, acquires the parameter, and sets it as a comparison target. For example, the device maintenance apparatus 100 searches for a predetermined parameter acquired in a specified period as a comparison target.

  After executing the process of step S23, the device maintenance apparatus 100 generates a comparison display (step S24). The comparison display is generated in a display mode selected in advance based on the parameters acquired in step S22. After executing the process of step S24, the device maintenance apparatus 100 displays the generated comparison display on the main screen (step S25). After executing the process of step S25, the device maintenance apparatus 100 determines whether or not to acquire the parameter again (step S26). The parameter reacquisition can be arbitrarily executed as in the process of step S22.

  When it is determined that the parameter is reacquired (step S26: YES), the device maintenance apparatus 100 returns to the process of step S21 and executes the process of step S21 to step S25 again. For example, when the parameter is repeatedly acquired at a predetermined time interval, whether the parameter is re-acquired can be determined based on whether a predetermined time has elapsed since the previous parameter acquisition. By re-acquiring the parameters, it is possible to regenerate and display the comparison display every time it is acquired.

  On the other hand, when it is determined that the parameter is not acquired again (step S26: NO), the device maintenance apparatus 100 determines whether or not to end the process (step S27). When it is determined that the process is to be ended (step S27: YES), the device maintenance apparatus 100 ends the process shown in the flowchart of FIG. On the other hand, when it is determined that the process is not ended (step S27: NO), the device maintenance apparatus 100 executes the process of step S26 again, and waits for re-acquisition of parameters or the end of the process.

In the comparison display process shown in FIG. 4, the comparison display is generated every time the parameter is acquired. For example, the generation of the comparison display is performed by acquiring a predetermined number of parameters. It may be executed at the time. Further, the timing of generating the comparison display and acquiring the parameters may be asynchronous.
The description of the comparative display setting process and the comparative display process using FIG. 3 and FIG. 4 is finished.

  Next, a comparison target setting screen for comparison display will be described with reference to FIG. FIG. 5 is a diagram illustrating an example of a comparison target setting screen for comparison display displayed by the device maintenance apparatus according to the embodiment. The comparison target setting screen illustrated in FIG. 5 is generated in the comparison target selection unit 201 illustrated in FIG.

  In FIG. 5, the setting screen 1010 includes a radio button 1011, a data designation unit 1012, a start date / time designation unit 1013, an end date / time designation unit 1014, a numerical value processing designation unit 1015, and a save button 1016.

  The radio button 1011 is a button for selecting any one of “data at the time of previous acquisition”, “designated data”, and “period data” as parameter data to be compared. “Data at the time of previous acquisition” is for comparing one data acquired at the previous time. “Specified data” is a comparison target of one data whose acquisition date and time is specified in the data specification unit 1012. The data specifying unit 1012 displays the date and time when the parameter is acquired so that it can be selected. When parameters are acquired at a plurality of dates and times, the data specifying unit 1012 enables selection of one acquisition date and time by pull-down. “Period data” specifies the start date and time and the end date and time in the start date and time designation unit 1013 and the end date and time designation unit 1014. A plurality of parameters may be acquired between the start date and time and the end date and time. The numerical value processing specifying unit 1015 specifies numerical value processing of the parameter acquired between the start date and time and the end date and time. For example, the average value specifies the average value calculation of the acquired parameters, and sets the average value as a comparison target. The maximum value is set as a comparison target, and the minimum value among the acquired parameters is set as a comparison target.

  A save button 1016 is a button for saving the contents set by the radio button 1011 or the like. By pressing the save button 1016, the setting contents are reflected in the comparison display.

Although FIG. 5 shows the case where the comparison target is selected by the above method, the comparison target selection method is not limited to the above. For example, when the selection target is specified by time requirements such as time or period, the parameter acquisition interval is a predetermined time or more, the parameter acquisition is a predetermined day of the week or a predetermined time zone, etc. . Also, instead of specifying the selection target in terms of time requirements, specifications that require parameter values, specifications that require an operator (for example, worker ID), equipment operating status, product production, etc. The comparison target may be selected by specifying the production information as a requirement. For example, as a specification method that requires the parameter value as a requirement, the acquired parameters that are determined to be normal (normal value, normal range, etc.) are stored, and this is used as the comparison target. It may be a selection target. On the other hand, among the acquired parameters, those determined to be abnormal (abnormal values, abnormal ranges, etc.) may be stored and used as selection targets for comparison.
This is the end of the description of the comparison target setting screen for comparison display using FIG.

  Next, selection of the type of device information (parameter) to be displayed on the comparison display will be described with reference to FIGS. FIG. 6 is a diagram illustrating an example of selection of the type of device information displayed on the comparison display in the embodiment. The comparison target setting screen shown in FIG. 6 is generated in the information type selection unit 202 shown in FIG.

  FIG. 6A shows a selection screen for selecting a parameter to be displayed in the comparison display by the type of field device. The selection screen in FIG. 6A includes check boxes that can select types such as “AA” and “AB”. The types such as “AA” and “AB” are, for example, the series name of the field device 2. For example, the type “AA” is a series of differential pressure gauges, the type “AB” is a series of thermometers, and the type “AC” is a series of flow meters. When a plurality of device types are selected on the selection screen of FIG. 6A, the same parameter selection is applied to the selected device types. By making it possible to select a plurality of device types using check boxes, it is possible to simultaneously set comparison targets to be applied to a plurality of device types.

  FIG. 6B is a selection screen for selecting a parameter to be displayed in the comparison display based on the communication type of the field device. The selection screen in FIG. 6B includes check boxes that allow selection of communication types from “communication A” to “communication H”. The communication type such as “communication A” and “communication B” is a communication protocol such as ISA100 or HART of the field device 2, for example. When a plurality of device types are selected on the selection screen in FIG. 6B, the same parameter selection is applied to the selected plurality of communication types as in the selection screen in FIG. By making it possible to select a plurality of communication types by using check boxes, it becomes possible to simultaneously set comparison targets to be applied to a plurality of communication types.

FIG. 7 is a field device selection screen when the device type of the field device 2 is selected in FIG. FIG. 7A is a parameter selection screen when the type “AA” is selected in FIG. FIG. 7A shows “PV (Primary
Selectable parameters such as “Value: first numerical value)”, “PV URV (Upper Range Value: upper limit value)”, “PV LRV (Lower Range Value: lower limit value)”, “PROTECT (write prohibition)” Has a box. By making it possible to select a plurality of parameters using check boxes, a plurality of parameters can be simultaneously selected as comparison targets. In the present embodiment, since the parameter selected for comparison display is displayed on the main screen, the number of parameters that can be selected may be limited within a predetermined range. By selecting the device type, a list of parameters acquired from the model is displayed, so that it is possible to reduce parameter setting errors by the operator.

FIG. 7B is a parameter selection screen when the type “AB” is selected in FIG. FIG. 7B shows “PV”, “PV URV”, “PV HRV (High)
A check box for selecting a parameter such as “Range Value: upper limit value” is provided. FIG. 7B shows that selectable parameters are partly different from those in FIG.

  FIG. 8 is a field device selection screen when the communication type of the field device 2 is selected in FIG. FIG. 8A is a parameter selection screen when the communication type “communication A” is selected in FIG. 6B. FIG. 8A includes check boxes in which parameters such as “PV” and “SV (Secondary Value)” can be selected. FIG. 8B is a parameter selection screen when the communication type “communication B” is selected in FIG. 6B.

  In the present embodiment, the case where a unique parameter is displayed by selecting the device type or the communication type of the field device 2 has been shown. However, some parameters are rarely used in equipment maintenance. May be. Therefore, for example, frequently used parameters may be preferentially displayed on the parameter selection screen of FIG. 7 or FIG. For example, the device maintenance apparatus 1 may calculate the priority by counting the number of times the parameter is acquired or changed for each piece of device information, and display based on the calculated priority.

In addition, a parameter that can be selected according to other conditions, such as a combination of a device type and a communication type, may be changed.
In FIG. 6, when a plurality of device types or communication types are selected, parameters that can be selected may be changed according to the plurality of device types or communication types.
This is the end of the description of the selection of the type of parameter to be displayed in the comparison display, with reference to FIGS.

  Next, the information type selection screen and the display mode selection screen will be described with reference to FIG. FIG. 9 is a diagram illustrating an example of an information type selection screen and a display mode selection screen displayed by the device maintenance apparatus according to the embodiment. 9, the information type selection screen 1020 includes a type selection unit 1021, a parameter selection unit 1022, a display target 1023, a display symbol selection unit 1024, and a save button 1025.

  The type selection unit 1021 is a pull-down menu for selecting the type of the field device 2. The type of the field device 2 selected by the type selection unit 1021 is the device type or the communication type of the field device 2 described above. That is, it is assumed that the type selection unit 1021 has a function corresponding to the selection screen described with reference to FIGS. 6 (A) and 6 (B).

  The parameter selection unit 1022 displays the parameters according to the type of the field device 2 selected by the type selection unit 1021 in a selectable manner. That is, the parameter selection unit 1022 displays the parameters shown in FIG. 7A, FIG. Assume that it has a function corresponding to the parameter selection screen described with reference to FIGS. 8A and 8B.

  The display target 1023 displays the display target parameter selected by the parameter selection unit 1022. The display target 1023 displays a parameter for which the check box of the parameter selection unit 1022 is selected, a parameter dragged and dropped from the parameter selection unit 1022, or a parameter selected by a pull-down menu displayed on the display target 1023. The pull-down menu preferentially displays all or some of the parameters displayed on the parameter selection unit 1022. For example, priority may be given to parameters acquired in the past, parameters set to be displayed in the pull-down menu, and the like. Note that the parameters displayed on the display target 1023 can be rearranged, changed, or deleted. Among the “◯” marks shown on the right side of the respective parameters selected on the display object 1023, “X” marks are cancel buttons for canceling the selection. When the cancel button is pressed, the parameter display disappears and the selection is cancelled.

  The display symbol selection unit 1024 is an example of a display mode selection screen, and is a check box for selecting a display symbol that is an example of the display mode of the comparison display described in FIG. The display symbol selection unit 1024 displays one or a plurality of display symbols such as arrows, symbols, differences, wordings, and trends. The setting of the display symbol selected by the display symbol selection unit 1024 may be applied to all parameters or a part of parameters. The display symbol selected by the display symbol selection unit 1024 is displayed on the main screen. Details of the display symbol will be described later with reference to FIG.

The save button 1025 is a button for saving the contents set on the information type selection screen 1020.
Above, description of the information type selection screen 1020 using FIG. 9 is complete | finished.

  Next, the main screen will be described with reference to FIGS. 10 and 11. FIG. 10 is a diagram illustrating an example of a main screen displayed by the device maintenance apparatus according to the embodiment. FIG. 11 is a diagram illustrating an example of a comparison display on the main screen displayed by the device maintenance apparatus according to the embodiment.

  In FIG. 10, the main screen 1030 is a display that is first displayed after the device maintenance apparatus 1 is activated, for example, as described above. The main screen 1030 is a screen for displaying and registering parameters of the field device 2. The main screen 1030 includes a menu bar 1031, device basic information display 1033, parameter acquisition button 1034, memo / image display 1035, and parameter display 1040. Here, the device basic information display 1033, the parameter acquisition button 1034, and the memo / image display 1035 are hereinafter referred to as “device information 1032”. FIG. 10 shows a display example of the main screen in the field device 2 with the tag ID “TAG 1234”. When displaying a plurality of field devices, the device information 1032 and the parameter display 1040 are displayed for the number of field devices. When a plurality of pieces of device information 1032 are displayed, the parameter display 1040 is displayed on the right side in FIG. On the main screen 1030, the parameter display 1040 is displayed together with the device information 1032 corresponding to the device information 1032. The display mode of the parameter display 1040 is not limited to the case where it is displayed on the right side of the device information 1032 on the main screen 1030 as shown in FIG. 10. For example, the parameter display 1040 may be displayed in a separate window from the main screen 1030. . Details of the parameter display 1040 will be described later with reference to FIG.

  The menu bar 1031 has a large menu of “file (F)”, “display (V)”, “operation (A)”, “tool (T)”, and “help (H)”. The characters in parentheses are shortcut keys that can operate the menu bar when pressed together with a predetermined key. When a large menu item is selected, more detailed menu items can be selected from a pull-down menu. In this embodiment, the menu button when the “operation (V)” menu is operated in the menu bar 1001 has the same function as the button such as the parameter acquisition button 1034.

  The device basic information display 1033 displays an icon, a device tag, a manufacturer, a device address, a device ID, a write protect state, and the like of the connected field device 2. The parameter acquisition button 1034 can display an execution button for acquiring all parameters or zero point adjustment parameters, a button for outputting the acquired parameters to an external file, and the like. The memo / image display 1035 has a comment display field for displaying a comment (memo or sticky note) input in advance for the field device 2 to be maintained, and a photo display field for displaying a photograph of the field device 2.

  The main screen 1030 includes a segment viewer switching button 1036, a device navigator switching button 1037, and an operation log switching button 1038. The main screen 1030 is displayed in a state where the segment viewer switching button 1036 is pressed. The operation log switching button 1038 displays a display screen for displaying maintenance information such as execution information stored in the maintenance information storage unit 105.

  11, the parameter display 1040 includes a parameter item 1041, a parameter value 1042, a unit display 1043, an arrow display 1044, a symbol display 1045, a difference display 1046, a wording display 1047, a trend display 1048, and a comparison target 1049. An arrow display 1044, a symbol display 1045, a difference display 1046, a wording display 1047, and a trend display 1048 are display examples of comparison display. The comparison display is selected by the display symbol selection unit 1024 described with reference to FIG. FIG. 11 is a display example when all the check boxes are selected in the display symbol selection unit 1024.

  The arrow display 1044 is a display symbol that visualizes the difference between the comparison target set on the setting screen 1010 in FIG. 5 and the parameter acquired thereafter in the direction of the arrow. The display mode of the direction of the arrow will be described later with reference to FIG. Note that the arrow display 1044, the difference display 1046, and the trend display 1048 are not displayed for parameters such as “PROTECT” that do not have numerical values.

  The symbol display 1045 is a display symbol obtained by visualizing the parameter difference with a predetermined symbol. The symbol display 1045 displays, for example, a “◯” mark when the increase / decrease in the parameter difference is normal, a “△” mark when the increase / decrease in the parameter difference requires attention, and a parameter difference When the increase / decrease is abnormal, a “x” mark is displayed. A judgment criterion such as normality (comparison with a predetermined threshold value, etc.) based on increase / decrease in the parameter difference can be set in advance. By displaying the symbol display 1045, it becomes easy to visually recognize abnormalities in parameters that cannot be immediately understood only by increasing or decreasing the parameters displayed on the arrow display 1044 or the trend display 1048.

  The difference display 1046 is a display symbol that represents a parameter difference by a numerical value. The number of digits of the numerical value displayed on the difference display 1046 can be set in advance. The wording display 1047 is a display symbol that displays information on a predetermined character (text) regarding the change of the parameter. For example, the parameter “PROTECT” in the parameter item 1041 indicates whether or not parameter write prohibition is set. In the wording display 1047, when there is a change in the setting, the text “changed” is displayed. Is displayed. On the other hand, in the wording display 1047, when there is no change in the setting, characters of “no change” are displayed. The trend display 1048 is a display symbol obtained by visualizing a parameter transition in a predetermined period with a graph. The comparison target 1049 indicates the acquisition date and time of the comparison target parameter.

Note that the display mode of the parameter display 1040 is not limited to the display example of FIG. For example, the parameter item 1041, the parameter value 1042, the unit display 1043, the arrow display 1044, the symbol display 1045, the difference display 1046, the wording display 1047, or the trend display 1048 are displayed colors, fonts, presence / absence of blinking, frame lines, underlines, etc. You may have the display mode which changes the decoration etc. by. The display mode may be such that the parameter display order in the parameter display 1040 is changed according to conditions such as the presence or absence of abnormality.
Further, the display mode of the comparative display may include, for example, still image or moving image display.
In addition, you may combine alerting | reporting aspects other than displays, such as an audio | voice and a vibration, with a comparison display.
Above, description of the main screen 1030 using FIG.10 and FIG.11 is complete | finished.

  Next, a display mode of comparison display according to the direction of the arrow in the arrow display 1044 of FIG. 11 will be described using FIG. 12. FIG. 12 is a display of comparison display according to the direction of the arrow displayed by the device maintenance apparatus in the embodiment. It is a figure which shows an example of an aspect.

  FIG. 12 is an excerpt of the parameter item 1041, the parameter value 1042, the unit display 1043, and the arrow display 1044 of FIG. FIG. 12 illustrates a horizontal display 1051, a sudden rise display 1052, a rise display 1053, and a fall display 1054 as arrow directions. The horizontal display 1051 is a display mode when the increase / decrease of the parameter is ± 0% in the previous ratio (for example, the ratio with the value to be compared). The rapid increase display 1052 is a display mode when the increase / decrease of the parameter is +10 to + 50% compared to the previous time. The increase display 1053 is a display mode when the increase / decrease of the parameter is 0 to + 10% compared to the previous time. The descending display 1054 is a display mode when the increase / decrease of the parameter is 0 to −10% compared to the previous time. The display mode of the arrow display 1044 allows the operator to easily see the magnitude of the parameter increase / decrease. The display mode of the arrow display 1044 shown in FIG. 12 can be set and stored in advance.

In FIG. 12, the case where the display mode of the arrow display 1044 is set in the comparison display has been described, but the display mode can be similarly set for other comparison displays.
Above, description of the display mode of the comparison display by the direction of the arrow using FIG. 12 is complete | finished.

  As described above, the device maintenance apparatus in the present embodiment is a device maintenance device including a display unit that displays device information acquired from a maintenance target device, and the display unit compares the acquired device information. By displaying a comparison target selection screen for selecting a target and a device information display screen for displaying a comparison display generated based on the transition of the selected device information of the comparison target for each device. Transitions can be displayed easily.

  In the present embodiment, an example in which the comparison display is displayed on the main screen 1030 is illustrated, but the display mode of the comparison display is not limited to this. For example, the comparison display may be one in which another window is activated and displayed by touching information such as an icon or a character, or the transition display is switched to another window or displayed. When a plurality of display panels are arranged, the main screen 1030 and the comparison display may be displayed on different display panels. Moreover, although the comparison display showed the case where it displayed in predetermined | prescribed area | regions, such as a rectangle in the touchscreen 15, for example, the comparison display does not specify the area | region on a touchscreen, long press with respect to a touchscreen, swipe, pinch | pinch It may be a target that can be operated by performing a predetermined operation. The comparison display may be displayed and operated on a lamp or display provided on a hardware switch or the like.

  Further, the comparison display may change the display color, display size, font, etc. over time. For example, the display color of the comparison display may be changed from blue to yellow, or from yellow to red. Also, along with the display of the comparison display, the change of the parameter is notified using a notification means such as voice or vibration. Also good.

  Further, a program for realizing the functions constituting the apparatus described in the present embodiment is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed. Thus, the various processes described above in the present embodiment may be performed. Here, the “computer system” may include an OS and hardware such as peripheral devices. Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used. The “computer-readable recording medium” means a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a CD-ROM, a hard disk built in a computer system, etc. This is a storage device.

  Further, the “computer-readable recording medium” refers to a volatile memory (for example, DRAM (Dynamic) in a computer system serving as a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. Random Access Memory)) that holds a program for a certain period of time is also included. The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what implement | achieves the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

  The embodiment of the present invention has been described above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes various modifications within the scope of the present invention. It is.

1 Equipment maintenance device 11 CPU
12 RAM
13 ROM
14 HDD
15 Touch panel 16 Communication I / F
17 Card slot 2 Field device 101 Communication unit 102 Device information storage unit 103 Display data generation unit 104 Maintenance execution unit 105 Maintenance information storage unit 201 Comparison target selection unit 202 Information type selection unit 203 Display mode selection unit 204 Device information display unit

Claims (11)

A device information acquisition unit for acquiring device information of a device to be maintained;
A device maintenance apparatus comprising: a display unit configured to display, for each device, a comparative display generated based on a transition from a previously acquired setting value of the setting value of the device included in the acquired device information. An information type selection unit for selecting a type of the setting value for displaying the comparison display;
The device maintenance apparatus according to claim 1, wherein the display unit displays the comparison display of the selected type.   The device maintenance apparatus according to claim 2, wherein the information type selection unit selects the type for each type of the device.   The device maintenance apparatus according to claim 2 or 3, wherein the information type selection unit selects the type for each communication type of the device. A display mode selection unit for selecting a display mode of the comparison display;
The device maintenance apparatus according to any one of claims 1 to 4, wherein the display unit displays the comparison display in the selected display mode.   The device maintenance apparatus according to claim 5, wherein the display mode selection unit selects at least one display mode of an arrow, a predetermined symbol, a difference between the set values, a character, or a graph.   The device maintenance apparatus according to claim 5 or 6, wherein the display mode selection unit selects the display mode for each type of the device.   The device maintenance apparatus according to claim 5, wherein the display mode selection unit selects the display mode for each communication type of the device. A device information acquisition step for acquiring device information of a device to be maintained;
A display step of displaying, for each device, a comparison display generated based on a transition from the previously acquired setting value of the setting value of the device included in the acquired device information. A device information acquisition process for acquiring device information of a maintenance target device;
A device maintenance program for causing a computer to execute a display process for displaying, for each device, a comparison display generated based on a transition from a previously acquired setting value of a setting value of the device included in the acquired device information. A device information acquisition process for acquiring device information of a maintenance target device;
A device maintenance program for causing a computer to execute a display process for displaying, for each device, a comparison display generated based on a transition from a previously acquired setting value of the setting value of the device included in the acquired device information is recorded. Recorded media.

Images