CN117944245A

CN117944245A - Monitoring device, extruder, information processing method, storage medium, and program product

Info

Publication number: CN117944245A
Application number: CN202311392877.5A
Authority: CN
Inventors: 马场贵之; 上田能贵
Original assignee: Japan Steel Works Ltd
Current assignee: Japan Steel Works Ltd
Priority date: 2022-10-27
Filing date: 2023-10-25
Publication date: 2024-04-30
Also published as: JP2024064252A; DE102023129784A1

Abstract

Provided is a monitoring device or the like capable of easily visually confirming the state of a measured value relating to an extruder. The monitoring device includes a display unit that displays information about an extruder, and a control unit that causes the display unit to display information about the extruder, wherein the control unit acquires measurement values of measurement items related to the operation conditions of the extruder, generates a screen including a graph showing the measurement values in time series and a measurement item frame showing the measurement items based on the acquired measurement values of the measurement items, and causes the display unit to display the generated screen.

Description

Monitoring device, extruder, information processing method, storage medium, and program product

Technical Field

The invention relates to a monitoring device, an extruder, an information processing method, a storage medium, and a program product.

Background

Conventionally, in order to monitor and control an industrial machine typified by an extruder, the following method has been used: by displaying a trend graph or the like showing the time-dependent change of measurement data collected from the monitoring control target machine on the display device, the user is made aware of the state of the monitoring control target machine in real time.

For example, patent document 1 discloses a technique capable of displaying alarm information of a device together with a trend chart on a trend chart display screen.

Prior art literature

Patent literature

Patent document 1: JP patent publication 2019-8435

Disclosure of Invention

In order to monitor and control the operation state of the extruder, it is important to grasp the state of the measured value that affects the operation of the extruder. Accordingly, a technique capable of easily visually confirming the state of the measurement value concerning the extruder is desired.

The purpose of the present disclosure is to provide a monitoring device or the like that can easily visually confirm the state of a measured value relating to an extruder.

The monitoring device according to one aspect of the present disclosure includes: a display unit for displaying information related to the extruder; and a control unit that causes the display unit to display information on the extruder, wherein the control unit acquires measurement values of measurement items relating to the operation conditions of the extruder, generates a screen including a graph showing the measurement values in time series and a measurement item frame showing the measurement items based on the acquired measurement values of the measurement items, and causes the display unit to display the generated screen.

An extruder according to an aspect of the present disclosure includes the above-described monitoring device.

An information processing method of an aspect of the present disclosure causes a computer to execute the following processing: a measurement value of a measurement item relating to an operation state of an extruder is acquired, a graph showing the measurement value in time series and a screen including a measurement item frame showing the measurement item are generated based on the acquired measurement value of the measurement item, and the generated screen is displayed on a display unit.

A storage medium according to an aspect of the present disclosure is provided with a program that causes a computer to execute: a measurement value of a measurement item relating to an operation state of an extruder is acquired, a graph showing the measurement value in time series and a screen including a measurement item frame showing the measurement item are generated based on the acquired measurement value of the measurement item, and the generated screen is displayed on a display unit.

A program product according to an aspect of the present disclosure is provided with a program that causes a computer to execute: a measurement value of a measurement item relating to an operation state of an extruder is acquired, a graph showing the measurement value in time series and a screen including a measurement item frame showing the measurement item are generated based on the acquired measurement value of the measurement item, and the generated screen is displayed on a display unit.

Effects of the invention

According to the present disclosure, the state of the measurement value related to the extruder can be easily visually confirmed.

Drawings

Fig. 1 is a schematic view of an extruder provided with a control device according to the present embodiment.

Fig. 2 is a block diagram showing an exemplary configuration of the control device.

Fig. 3 is a schematic diagram showing example 1 of a trend graph screen.

Fig. 4 is a schematic diagram showing an example 2 of a trend graph screen.

Fig. 5 is a schematic diagram showing example 3 of a trend graph screen.

Fig. 6 is a schematic diagram showing the 4 th example of the trend graph screen.

Fig. 7 is a schematic diagram showing the 5 th example of the trend graph screen.

Fig. 8 is a schematic diagram showing a 6 th example of a trend graph screen.

Fig. 9 is a schematic diagram showing the 7 th example of the trend graph screen.

Fig. 10 is a flowchart showing an example of the processing procedure executed by the control device.

Wherein reference numerals are as follows:

1 extruder

10 Cylinder body

10A hopper

11 Screw rod

12 Mould

13 Motor

14 Speed reducer

15 Raw material feeder

2 Control device (monitoring device)

21 Control part

22 Storage part

23 Communication unit

24 Display part

25 Operation part

26 Data input section

2A storage medium

2P program

3 Sensor

31 St sensor 1

32 Nd sensor

33 Rd sensor 3

34 Sensor 4.

Detailed Description

The present disclosure will be described in detail with reference to the accompanying drawings showing embodiments of the present disclosure.

Fig. 1 is a schematic view of an extruder 1 including a control device 2 according to the present embodiment. The extruder 1 is a machine for melting, kneading and extruding a molding material. The extruder 1 is provided with a control device 2 for controlling the operation of the extruder 1. The control device 2 includes a display unit 24, and displays information about the extruder 1 on the display unit 24. The control device 2 corresponds to a monitoring device for displaying information about the extruder. The extruder 1 is provided with a plurality of sensors 3.

< Extruder 1>

The extruder 1 includes a cylinder 10, two screws 11, and a die 12 provided at an outlet portion of the cylinder 10. The cylinder 10 has a plurality of hoppers 10a into which resin raw materials and various additives are charged. The resin and the additive are supplied to the hopper 10a through the raw material feeder 15. The two screws 11 are disposed substantially in parallel in a state of meshing with each other, are rotatably inserted into holes of the cylinder 10, and convey, melt and knead the resin raw material charged into the hopper 10a in the extrusion direction (rightward in fig. 1). The molten resin raw material is discharged from the die 12 having the through holes.

The screw 11 is formed by combining and integrating a plurality of screw blocks into one screw 11. For example, the screw 11 is configured by combining a forward flighted block in the shape of a flighted screw for forward feeding of the resin raw material, a reverse flighted block for reverse feeding of the resin raw material, a kneading block (kneading block) for kneading the resin raw material, and the like in an order and at a position corresponding to the characteristics of the resin raw material.

The extruder 1 further includes a motor 13 that outputs a driving force for rotating the screw 11, and a decelerator 14 that decelerates and transmits the driving force of the motor 13. The screw 11 is connected to an output shaft of the speed reducer 14. The screw 11 is rotated by the driving force of the motor 13 transmitted by the reduction gear 14. The structure of the extruder 1 is not limited to the above examples. The number of screws 11 provided in the extruder 1 is not limited to two.

< Sensor 3>

The sensor 3 detects physical quantities associated with the operating conditions of the extruder 1 in time series. The sensor 3 is connected to the control device 2, and outputs a measured value of the detected physical quantity to the control device 2. The sensor 3 may be provided in advance in the extruder 1 and peripheral devices as equipment necessary for controlling the operation of the extruder 1, or may be provided in addition thereto. The sensor 3 may be connected to a data collection device (not shown) such as a PLC (Programmable Logic Controller: programmable logic controller), and may output a measured value to the control device 2 via the data collection device.

The physical quantity detected by the sensor 3 is not particularly limited as long as it is a physical quantity related to the operation condition of the extruder 1, and examples thereof include temperature, weight, position, speed, acceleration, current, voltage, pressure, time, torque, force, strain, power consumption, and the like. These physical quantities can be measured using a thermometer, a weight meter, a position sensor, a speed sensor, an acceleration sensor, a ammeter, a voltmeter, a pressure gauge, a timer, a torque sensor, a power meter, or the like.

The plurality of sensors 3 include, for example, a1 st sensor 31 that detects the physical quantity of the raw material feeder 15, a 2nd sensor 32 that detects the physical quantity of the screw 11, a3 rd sensor 33 that detects the physical quantity of the motor 13, and a4 th sensor 34 that detects the physical quantity of the die 12.

The 1 st sensor 31 is, for example, a thermometer or the like that detects the weight of the supply amount of the raw material (feeder supply amount) supplied from the raw material feeder 15 to the hopper 10a, the temperature of the raw material feeder 15, or the resin material in the raw material feeder 15. The 2 nd sensor 32 is a torque detector that detects the shaft torque of the screw 11, a tachometer that detects the rotational speed of the screw 11, a pressure gauge that detects the screw tip pressure, a thermometer that detects the temperature of the resin material in the screw 11 or the cylinder 10, a displacement sensor that detects the displacement of the rotational center of the screw 11, or the like. The 3 rd sensor 33 is a ammeter for detecting a motor current, a tachometer for detecting a motor rotation speed, or the like. The 4 th sensor 34 is a pressure gauge that detects a die head pressure acting on the die 12, a thermometer that detects a temperature of the die 12 or a resin material in the die 12, or the like.

< Control device 2>

Fig. 2 is a block diagram showing an exemplary configuration of the control device 2. The control device 2 is a computer for performing operation control of the extruder 1 and for presenting information about the extruder 1. The control device 2 receives a signal related to the measured value measured by the sensor 3, and presents the operation state of the extruder 1 in a graph form through the display unit 24 based on the received measured value. The control device 2 may be provided at an appropriate position in the extruder 1 where the user can easily visually confirm the display unit 24.

The measurement value related to the operation state of the extruder 1 displayed on the display unit 24 is not limited to the measurement value directly measured by the sensor 3, and may include a calculated value indirectly calculated from the measurement value. Further, the measured value is not limited to the value measured using the sensor 3. The control device 2 is not limited to acquiring the measurement value by the sensor 3, and may acquire the measurement value by an external device connected via another control device, a network such as the internet, or the like.

The control device 2 includes a control unit 21, a storage unit 22, a communication unit 23, an operation unit 25, a data input unit 26, and an output unit 27, in addition to the display unit 24. The storage unit 22, the communication unit 23, the display unit 24, the operation unit 25, the data input unit 26, and the output unit 27 are connected to the control unit 21. The control device 2 may be a server device connected to a network. The control device 2 may be configured by a plurality of computers and perform distributed processing, may be implemented by a plurality of virtual machines provided in 1 server, or may be implemented by a cloud server.

The control unit 21 includes a CPU (Central Processing Unit) and an ASIC (Application SPECIFIC INTEGRATED Circuit), an arithmetic processing Circuit such as an FPGA (Field-Programmable gate array), an internal Memory such as a ROM (Read Only Memory), a RAM (Random Access Memory) and an I/O terminal, and the like. The control unit 21 functions as the control device 2 of the present embodiment by executing a program 2P stored in a storage unit 22 described later. The respective functional units of the control device 2 may be realized in software, hardware, or a combination thereof.

The storage unit 22 includes a nonvolatile memory such as a hard disk, a flash memory, or an SSD (Solid state disk). The storage unit 22 may be an external storage device connected to the control device 2. The storage unit 22 stores various programs and data referred to by the control unit 21. The storage unit 22 of the present embodiment stores a program 2P for causing a computer to execute processing related to generation of a display screen of an operating condition, and measured value data, which is data necessary for execution of the program 2P. In the measurement value data, for example, a record that associates a measurement time with a measurement value is recorded sequentially in time series for each of a plurality of measurement items. The control device 2 stores in the measured value data every time a new measured value is acquired from the sensor 3.

The program (program product) including the program 2P may also be provided by a non-transitory storage medium 2A that records the program in a readable manner. The storage unit 22 stores a program read from the storage medium 2A by a reading device not shown. The storage medium 2A is, for example, a magnetic disk, an optical disk, a semiconductor memory, or the like. The program may be downloaded from an external server connected to the communication network and stored in the storage unit 22. The program 2P may be constituted by a single computer program or by a plurality of computer programs, and may be executed on a single computer or may be executed on a plurality of computers connected to each other via a communication network.

The communication unit 23 includes a communication module for communicating with an external device via a network such as the internet. The control unit 21 transmits and receives data to and from an external device via the communication unit 23. The communication unit 23 may be omitted.

The display unit 24 includes, for example, a display device such as a liquid crystal display or an organic EL (Electro Luminescence: electroluminescence) display. The display unit 24 displays various information about the extruder 1 in response to an instruction from the control unit 21. The display unit 24 may be an AR (Augmented Reality: augmented Reality) display device or a VR (Virtual Reality) display device.

The operation unit 25 is an interface for receiving an operation by a user. The operation unit 25 includes, for example, a touch panel device with a built-in display, a keyboard, a mouse, a selector switch, a button switch, a speaker, a microphone, and the like. The operation unit 25 receives an operation input from a user, and sends a control signal corresponding to the operation content to the control unit 21.

As shown in fig. 1, the display unit 24 of the control device 2 in the present embodiment is mounted on the extruder 1 so that the width direction of the screen is along the extrusion direction of the extruder 1 by using a wide screen having a long lateral length. According to the above configuration, the device configuration of the extruder 1 extending in the extrusion direction can be applied and the display area of the display unit 24 can be increased.

The data input unit 26 is an input interface for inputting a signal output from the sensor 3. The data input unit 26 is connected to each sensor 3. The control unit 21 obtains the measured value of the sensor 3 via the data input unit 26 at any time.

The output unit 27 is an output interface for outputting a signal related to control of the extruder 1. The extruder 1 is connected to the output section 27. The control unit 21 outputs various control signals to the extruder 1 via the output unit 27, and controls the operation of the extruder 1.

The control device 2 may be provided at a location separate from the extruder 1, and may be configured to receive the measured value by a computer (control device) connected to the extruder 1 and display information corresponding to the received information. In this case, the control device 2 may not include the data input unit 26 and the output unit 27.

< Display Screen >

Fig. 3 is a schematic diagram showing example 1 of the trend graph screen 41. The control unit 21 of the control device 2 causes the display unit 24 to display a trend map screen 41 generated based on the measured value of the sensor 3. The trend graph screen 41 is a screen showing a trend graph showing time-series changes in measured values of a plurality of measurement items associated with the operation condition of the extruder 1. The trend chart screen 41 includes a measurement item selection unit 410 and a graph display unit 411.

The measurement item selection unit 410 has a plurality of measurement item boxes 412 indicating the respective measurement items. The measurement item boxes 412 are associated with a certain measurement item, and the measurement item boxes 412 are screen elements that display information about the measurement item associated with the measurement item box 412 and accept operations about the measurement item.

The measurement item box 412 includes a measurement item display unit 413 for displaying the name of the measurement item associated with the measurement item box 412, a measurement value display unit 414 for displaying the measurement value of the measurement item, and a check box 415 for receiving a request to switch between display and non-display of the trend graph of the measurement item. In the case where the check box 415 is checked, this means that the display of the trend graph is requested.

The measurement items that can be displayed as the trend chart are items based on the measurement values of the sensor 3 and/or other devices or calculated values based on the measurement values, and include, for example, main motor current, feeder supply amount, feeder output, feeder control deviation, feeder rotation speed, screw rotation speed, cylinder temperature, resin material temperature, and the like.

The graph display unit 411 displays time-series data of a predetermined display period in the form of a trend graph with respect to the measurement value of the measurement item checked by the check box 415 of the measurement item box 412. The graph display unit 411 includes trend graphs of a plurality of measurement items. For example, the trend graphs are displayed so that the data of each measurement item can be recognized by changing the display form for each measurement item by making the color, the line type, or the like of the line of the graph of each measurement item different. In the present embodiment, the colors of the charts are different for each measurement item, and in fig. 3, charts drawn with different line patterns are shown in order to express the difference in the colors of the charts.

For example, in a state where the display unit 24 displays a summary screen showing a summary of the extruder 1, the control device 2 accepts a display request of the trend graph screen 41 using an operation icon 416 shown at the left end of fig. 3. Based on the information stored in the measurement value data of the storage unit 22, the control device 2 extracts the measurement value in the display period, and generates a graph in which the horizontal axis is the measurement time and the vertical axis is the measurement value for each measurement item. The initial display period is a latest period including latest data, and is a period that is traced back from the current time point by a predetermined period. The control device 2 performs display processing for changing the color of the chart for each measurement item according to the display color of each measurement item set in advance.

The control device 2 causes the graph display unit 411 to display the measurement time axis in the X-axis area 417 of the graph and causes the Y-axis area 418 to display a plurality of numerical axes corresponding to the measurement items. The control device 2 changes the display color of each numerical axis of each measurement item in the Y-axis area 418 in accordance with the display color of each measurement item set in advance, similarly to the trend chart. By making the display color different for each measurement item, the user can visually recognize the data clearly even in the case where a plurality of numerical axes are arranged. In addition, by synchronizing the trend graph with the color of the numerical axis, the condition of the measured value is easily known.

The trend chart displayed on the graph display section 411 is updated as the operation time elapses. The control device 2 updates the trend graph so that the measured value shown at the right end of the graph display unit 411 becomes the latest value every time a new measured value is acquired.

The control device 2 generates a measurement item frame 412 corresponding to each of a plurality of measurement items that can be objects of display of the trend chart, and displays the measurement item frame on the measurement item selection unit 410 in a list from the upper side in accordance with a display order of the measurement items set in advance. The control device 2 performs display processing for changing the background color of the measurement item frame 412 in the same manner as the trend graph, based on the display color set in advance for each measurement item. The control device 2 may change the character color of the measurement item box 412. By synchronizing the trend graph with the color of the measurement item box 412, it is possible to make it easier for the user to visually correlate information.

When the measured value is acquired by the sensor 3, the control device 2 causes the measured value to be displayed on the measured value display unit 414 in real time. The control device 2 updates the display information of the measurement value display section 414 every time a new measurement value is acquired. When the trend chart of the latest period is displayed, the measured value displayed on the measured value display unit 414 matches the measured value at the right end of the trend chart. As will be described later, the data displayed on the trend graph screen 41 is not limited to real-time data, and may be past data (history data) based on the accumulated measured values.

The above-described initial setting information including the display color of the measurement item, the display order of the measurement item box 412, and the like may be collected and stored in the storage unit 22 by a registration operation of the user before the trend graph screen 41 is provided, for example. The display order of the measurement item box 412 may be changed at any time. For example, the user can direct a finger to instruct one of the measurement item boxes 412, and directly move the finger up and down in a state where the finger touches the screen, thereby changing the position of the measurement item box 412.

As the initial setting information, the user can select a prescribed number of measurement items for which it is desired to display a trend chart from among all the measurement items that can be acquired. In the present embodiment, from the viewpoint of improving visual confirmatory, the upper limit of the number of measurement items that can display the trend chart is set to 10. The control device 2 displays a measurement item frame 412 corresponding to 10 measurement items to be displayed, which are selected at the time of initial setting, on the measurement item selecting unit 410. Further, the control device 2 may acquire the measured value of one measurement item, and generate the trend graph screen 41 relating to the acquired one measurement item.

The control device 2 receives a request for switching between display and non-display of the trend graph for each measurement item at any time by using the check box 415 during the display of the trend graph screen 41. When the check box 415 is input with a check by an operation of the user operation unit 25, the control device 2 accepts a request for displaying a graph corresponding to a measurement item of the measurement item box 412 of the check box 415. The control device 2 causes the graph display 411 to display a trend graph corresponding to the measurement item in response to the reception of the display request.

Fig. 4 is a schematic diagram showing an example 2 of the trend graph screen 41. In a state where the screen shown in fig. 3 is displayed, for example, when an operation to cancel the check of the check box 415 of "feeder a output" is accepted, the control device 2 controls the graph display unit 411 so that the trend graph of feeder a output is not displayed as shown in fig. 4.

Fig. 5 is a schematic diagram showing the 3 rd example of the trend graph screen 41. The control device 2 highlights a specific trend chart in the graph display section 411 in response to a request for highlighting one of the measurement items. Highlighting is performed, for example, by making the thickness of a line of a specific trend graph drawn in the graph display unit 411 different from other data, by making the trend graph be turned on or off, by displaying it at the forefront, or the like.

In the present embodiment, the measurement value display unit 414 of the measurement item box 412 functions as a receiving unit that receives the selection of the highlighting. The user can select a measurement item to be highlighted by clicking on one of the measurement values on the measurement value display unit 414 by using the operation unit 25. In a state where the screen shown in fig. 3 is displayed, for example, when a click operation of the measurement value in the measurement item box 412 corresponding to the "feeder a supply amount" is accepted, the control device 2 decides the instruction content and the measurement item based on the position coordinates of the click operation. Based on the determination result, the control device 2 highlights a trend chart of the feeder a supply amount as shown in fig. 5.

Fig. 6 is a schematic diagram showing the 4 th example of the trend graph screen 41. The measurement item box 412 also functions as a setting unit for receiving a setting of a measurement item. In the present embodiment, the measurement item display unit 413 functions as a setting unit.

The settings related to the measurement items include, for example, the setting of the Y-axis scale. The Y-axis scale may automatically set the upper limit value and the lower limit value based on the measured value, or may manually set the upper limit value and the lower limit value. In the case of automatic setting, the maximum value and the minimum value of the measured values in the display period of the graph may be regarded as the upper limit value and the lower limit value, or the maximum value and the minimum value of the measured values in the display period of the graph may be automatically determined to be appropriate values.

The user can select a measurement item to be set by clicking the measurement item name on the measurement item display unit 413 by using the operation unit 25. In a state where the screen shown in fig. 3 is displayed, for example, when a click operation of the measurement item name in the measurement item box 412 corresponding to the "feeder a supply amount" is accepted, the control device 2 decides the instruction content and the measurement item based on the position coordinates of the click operation. Based on the determination result, the control device 2 displays a setting screen 419 for receiving setting of the feeder a supply amount as a pop-up window on the trend map screen 41, as shown in fig. 6. The display form of the setting screen 419 is not limited to the pop-up window, and may be displayed in another window, for example.

The setting screen 419 includes a check box for selecting a setting method of the Y-axis scale, an input field for an upper limit value and a lower limit value in the case of manual setting, and the like. The control device 2 receives the setting method of the Y-axis scale from the user via the setting screen 419, and receives inputs of the upper limit value and the lower limit value as necessary. The control device 2 updates the Y-axis scale of the Y-axis area 418 according to the accepted setting method, upper limit value, lower limit value, and the like, and displays a graph corresponding to the updated Y-axis scale.

The configuration of the trend graph screen 41 is not limited to the above example. For example, the display/non-display, highlighting, and acceptance of settings related to measurement items of the trend chart are not limited to the use of the check box 415, the measurement value display unit 414, and the measurement item display unit 413, but a configuration is preferable in which desired information can be displayed by a simple operation without requiring a complicated operation.

Fig. 7 is a schematic diagram showing the 5th example of the trend graph screen 41. The graph display unit 411 is configured to be able to change the display period of the trend graph according to a user operation. As conceptually shown in fig. 7, the user performs swipe (slide) by the operation unit 25 to move the trend chart in the graph display unit 411 in the left or right direction. The swipe corresponds to a scrolling indication of the trend graph. For example, when a swipe in the right direction of the screen is accepted, the control device 2 determines a movement period corresponding to the amount of the swipe operation based on a change in the position coordinates corresponding to the swipe, and moves the X-axis (measurement time axis) of the trend chart in the past for a period corresponding to the determined movement period. That is, the control device 2 changes the period of the time-series data displayed on the graph display unit 411 from the latest period to an earlier period, which is earlier than the latest period by the period corresponding to the swipe, and causes the graph display unit 411 to display a trend graph of the changed predetermined period.

In the case where the trend graph does not show the latest period, the control device 2 may display a movement button 420 for moving to the latest period in the vicinity of the trend graph. In the example shown in fig. 7, a movement button 420 is arranged at the upper right side of the graph display unit 411.

When the click operation of the movement button 420 based on the user operation is accepted, the control device 2 returns the display period of the trend chart to the latest period. In this way, when the display period is not up-to-date, the movement button 420 is presented, and thus the up-to-date data can be displayed in a single touch. After moving to the latest period, the display is switched to real-time display again, and the trend graph automatically scrolls leftwards at any time. When the display period is the latest period, the control device 2 may set the movement button 420 to be not displayed.

Fig. 8 is a schematic diagram showing a 6 th example of the trend graph screen 41. The display period may be changed by a configuration other than the swipe. As shown in fig. 8, the trend graph screen 41 has a Jump button (Jump) 421 at the upper part. The jump button 421 is a button for designating a change in the display period.

When the jump button 421 is selected by the operation of the user operation unit 25, the control device 2 displays a time accepting unit 422 for accepting the designation of the measurement time to be the display target of the trend chart on the trend chart screen 41 as a pop-up window, as shown in fig. 8. The display form of the time accepting unit 422 is not limited to the pop-up window. The time accepting unit 422 includes a scroll bar corresponding to a displayable period of the trend chart, and can accept designation of the measurement time by an operation of the scroll bar by the user. The jump button 421 and the time receiving section 422 correspond to a movement receiving section for moving the period of the trend chart.

When the measurement time is specified by the scroll bar based on the operation of the user operation unit 25, the control device 2 determines the measurement time specified by the scroll operation, and moves the trend graph so that the determined measurement time becomes the time at the center of the display period. The control device 2 may move the trend graph so that the designated measurement time becomes the latest time or the earliest time in the display period.

As described above, since the user can directly designate the measurement time to move the trend chart by using the jump button 421, it is easy to perform an operation that takes time to perform a swipe in which the trend chart is moved from the current time to a comparatively distant measurement time.

The graph display unit 411 may be configured to be able to change the length of the display period of the trend graph. The control device 2 receives a change in the display period by, for example, expanding outward or contracting inward. In a state where the trend chart is displayed, when the outward expansion or inward contraction is detected by the operation unit 25, the control device 2 determines the detected operation content and the length of the display period corresponding to the operation amount. The control device 2 changes the width of the X-axis of the trend graph so as to correspond to the determined length of the display period, and causes the graph display unit 411 to display the trend graph for the predetermined period after the change.

The control device 2 may display the length of the display period of the changed X-axis in the graph display unit 411 so as to be able to recognize the length. The control device 2 displays an arrow object extending in parallel with the X-axis direction in the graph display unit 411, for example, and displays the length (for example, the number of seconds) of the display period in the arrow object, thereby presenting the current display period to the user. This makes it possible to clearly grasp the display period that changes according to the outward expansion or inward contraction. In addition, when the display period exceeds a predetermined time or the like for a relatively long period, the number of total data points to be displayed may be reduced by dividing the measurement values by a predetermined rule. By changing the length of the display period, the trend of the long term or the short term to be focused can be grasped in more detail.

The above-described swipe, outward expansion, inward contraction, and the like are examples of the user operation, and the operation method is not limited to the above-described examples, and may be other operations such as dragging, sliding, and the like.

Fig. 9 is a schematic diagram showing the 7 th example of the trend graph screen 41. The trend graph screen 41 may be configured to present a measured value at a specific measurement time (hereinafter, also referred to as a time of interest) on the trend graph. In the example shown in fig. 9, the graph display unit 411 of the trend graph screen 41 includes a time cursor 423. The time cursor 423 functions as a cursor for specifying the time of interest in the display period. The time cursor 423 is orthogonal to the time of interest on the X axis, and is a straight line extending to the upper side in the Y axis direction.

For example, when the control device 2 detects a touch operation by the user by the operation unit 25, the time cursor 423 is displayed on the graph display unit 411 in the X-axis area 417 of the graph display unit 411. The time cursor 423 is displayed overlapping the trend graph. The control device 2 receives a designation of the time of interest from the user by using the time cursor 423. The time cursor 423 is configured to be able to change the cursor position in response to a touch operation performed to operate the time cursor 423 by the user.

The control device 2 determines a designated time of interest based on the position coordinates of the touch operation and the current display period of the X-axis area 417. The control device 2 displays the attention time corresponding to the time cursor 423 in the vicinity of the time cursor 423 (in the example of fig. 9, the upper part of the time cursor 423). The control device 2 reads the measured value of each measurement item at the time of interest based on the measured value data of the storage unit 22. The control device 2 causes the measurement value at the time of interest to be read and displayed on each measurement value display unit 414.

As shown conceptually in fig. 9, the user can freely move the time cursor 423 by performing a swipe in the X-axis area 417 by the operation unit 25. When the swipe is detected by the operation unit 25 in a state in which the time cursor 423 is displayed on the graph display unit 411, the control device 2 changes the position of the time cursor 423 based on the detected operation content and the operation amount, and accepts designation of a new time of interest. The control device 2 causes the measurement value corresponding to the new time of interest to be displayed on each measurement value display unit 414. Each time the time cursor 423 is moved, the measurement value of each measurement value display unit 414 is changed.

While the trend chart screen 41 has been described above as having one graph display section 411, the trend chart screen 41 may have a configuration having a plurality of graph display sections 411. For example, the trend graph screen 41 includes three graph display sections 411, and each graph display section 411 is displayed in a line along the longitudinal direction of the trend graph screen 41. The control device 2 reduces the upper limit number of the charts displayed on each chart display unit 411 to be smaller than the case where all charts are displayed on one chart display unit 411. That is, the control device 2 divides and displays the various trend graphs to be displayed on the graph display units 411. With the above configuration, the visual confirmation in the case where the number of charts is increased can be improved.

The trend graph screen 41 may be configured to appropriately switch between a normal display in which all trend graphs are displayed together by one graph display unit 411 and a divided display in which the trend graphs are divided and displayed by a plurality of graph display units 411.

Fig. 10 is a flowchart showing an example of the processing procedure executed by the control device 2. The control unit 21 of the control device 2 executes the following processing according to the program 2P stored in the storage unit 22. The control unit 21 starts the following processing when receiving a request for displaying a trend graph screen on the summary screen, for example.

The control unit 21 of the control device 2 refers to the measured value data of the storage unit 22, and acquires time-series data of a plurality of measured values in a predetermined display period (step S11). The control section 21 can acquire a measured value by the sensor 3.

The control unit 21 generates a trend graph screen 41 including a trend graph for each measurement item and a measurement item frame 412 corresponding to each measurement item based on the time-series data of the acquired measurement values (step S12). The control unit 21 causes the display unit 24 to display the generated trend graph screen 41 (step S13). The control unit 21 may display the trend graph, the measurement item box 412, and the like on a predetermined display device using a known AR or VR technique.

The control unit 21 determines whether or not a request for switching between display and non-display of the trend graph based on the user operation is accepted (step S14). If it is determined that the switching request is not accepted by not accepting the operation of the check box 415 in all measurement item boxes 412 (no in step S14), the control unit 21 advances the process to step S16.

When it is determined that the switching request is received by receiving the operation of the check box 415 in one of the measurement item boxes 412 (yes in step S14), the control unit 21 switches the display/non-display of the trend chart of the measurement item for which the switching request is received (step S15).

Specifically, when receiving the check input to the check box 415, the control unit 21 causes the trend graph of the measurement items in the measurement item box 412, which has received the check input, to be displayed on the trend graph screen 41. Or, when the control unit 21 accepts the check of the release check box 415, it deletes the trend graph of the measurement item accepted to check the released measurement item box 412 from the trend graph screen 41, and does not display it. According to the above processing, the trend chart of the measurement item requested to be displayed is displayed only on the trend chart screen 41.

The control unit 21 determines whether or not a request for highlighting a trend graph based on a user operation is accepted (step S16). If it is determined that the request for highlighting is not accepted by not accepting the click operation on the measurement value display section 414 in all measurement item boxes 412 (step S16: no), the control section 21 advances the process to step S18.

When it is determined that the request for highlighting is received by receiving the click operation on the measurement value display unit 414 in any one of the measurement item boxes 412 (yes in step S16), the control unit 21 highlights the trend chart (step S17). Specifically, the control unit 21 performs display processing such as widening the line width of the trend graph of the measurement item selected by the click operation in the measurement item box 412, thereby highlighting the trend graph of the selected measurement item.

The control unit 21 determines whether or not a request for changing the display period based on the operation of the user is received (step S18). The control unit 21 accepts a request for changing the display period by, for example, a swipe on the trend chart or a click on the jump button 421. The control unit 21 may receive a change in the length of the display period by using an outward expansion or an inward contraction on the trend chart.

When it is determined that the request for changing the display period has not been received by the predetermined operation not being detected (step S18: no), the control unit 21 advances the process to step S20.

When it is determined that the request for changing the display period is received by detecting the predetermined operation (yes in step S18), the control unit 21 changes the display period of the trend chart according to the detected operation content (step S19). Specifically, the control unit 21 changes the display period of the trend chart based on the swipe. The control unit 21 may receive a designation of a measurement time based on a user operation, and may display a trend graph including the received measurement time during a display period. The control unit 21 may change the length of the display period of the trend chart, that is, the width of the X-axis, according to the outward expansion or inward contraction.

The control unit 21 determines whether or not the designation of the time of interest based on the operation of the user is received (step S20). If it is determined that the designation of the time of interest has not been received by the touch operation in the X-axis area 417 of the trend chart being not detected (step S20: no), the control unit 21 advances the process to step S22.

When it is determined that the designation of the time of interest is received by detecting the touch operation in the X-axis area 417 of the trend chart (yes in step S20), the control unit 21 changes the measurement value of each measurement item frame 412 (step S21). Specifically, the control unit 21 displays the time cursor 423 on the trend chart in an overlapping manner according to the touch position, and receives the designation of the time of interest by the time cursor 423. The control unit 21 extracts a measurement value corresponding to the received time of interest from the measurement value data, and displays the extracted measurement value on each measurement value display unit 414.

The control unit 21 determines whether or not the trend map screen 41 needs to be updated (step S22). When it is determined that the trend map screen 41 is updated by measuring a new measurement value (no in step S22), the control unit 21 returns the process to step S11. The control unit 21 updates the screen information of the trend map screen 41 based on the new measurement value. When it is determined that the trend map screen 41 is not updated by not measuring the new measurement value (yes in step S22), the control unit 21 ends the processing. The control unit 21 may execute loop processing for returning the processing to step S14.

In the above-described processing, the order of the determination processing in steps S14 to S20 is not limited. The control unit 21 may replace and execute the processing sequence of each of the determination processes in steps S14 to S20, or may execute each determination process in parallel.

According to the present embodiment, the operation state of the extruder can be easily visually grasped by using the trend graph screen including the trend graph of each measurement item and the measurement item frame associated with each measurement item. Even in the case where there are a plurality of measurement items, the trend of each measurement item can be grasped appropriately, and the operation for each measurement item can be performed easily. By using a wide screen having a horizontal length suitable for displaying a trend graph having a horizontal axis as a measurement time, a trend of a measured value during a long display period can be appropriately presented. The trend graph screen can effectively display data of a plurality of measurement items by using various measurement item frames, thereby improving visual confirmation. Further, the graph display area and the measurement item frame in the trend graph screen can be applied using the touch panel, and various screen information can be changed by a simple operation such as clicking or swipe, so that the user can easily perform the operation.

(Additionally, 1)

A monitoring device is provided with:

a display unit for displaying information related to the extruder; and

A control unit for causing the display unit to display information related to the extruder,

The control section acquires a measurement value of a measurement item related to an operation condition of the extruder,

The control unit generates a screen including a graph showing the measurement values in time series and a measurement item frame representing the measurement item based on the acquired measurement values of the measurement item,

The control unit causes the display unit to display the generated screen.

(Additionally remembered 2)

The monitoring device according to supplementary note 1, wherein,

The control section acquires measurement values of a plurality of the measurement items,

And generating the screen including the graph showing the measured values in time series for each measurement item and a plurality of measurement item frames representing the measurement items, based on the acquired measured values of the measurement items.

(Additionally, the recording 3)

The monitoring device according to supplementary note 1 or 2, wherein,

And the measurement item frame displays the measured value of the measurement item in real time.

(Additionally remembered 4)

The monitoring device according to any one of supplementary notes 1 to 3, wherein,

The measurement item box includes a switching section that accepts a request to switch between display and non-display of the chart,

The control unit switches between display and non-display of the chart corresponding to the measurement item of the measurement item frame according to a switch request for display and non-display of the chart by the switch unit in the measurement item frame.

(Additionally noted 5)

The monitoring device according to any one of supplementary notes 1 to 4, wherein,

The measurement item box includes an acceptance portion that accepts a request for highlighting of a chart,

The control part accepts a request for highlighting through the accepting part in the measurement item box,

Highlighting a chart corresponding to the measurement item of the requested measurement item box.

(Additionally described 6)

The monitoring device according to any one of supplementary notes 1 to 5, wherein,

The control unit receives a scroll instruction for the graph,

The period of the chart displayed on the display unit is changed in accordance with the received scroll instruction.

(Additionally noted 7)

The monitoring device according to any one of supplementary notes 1 to 6, wherein,

The screen contains a cursor displayed on the chart,

The control unit receives designation of a specific measurement time by the cursor,

And displaying the measured value in the specified specific measuring time on the measuring item box.

(Additionally noted 8)

The monitoring device according to any one of supplementary notes 1 to 7, wherein,

The screen includes a movement receiving unit for moving the chart displayed on the display unit,

The control unit receives movement of the chart by the movement receiving unit during the period,

The graph of the period received by the movement receiving unit is displayed.

(Additionally, the mark 9)

An extruder provided with the monitoring device according to any one of supplementary notes 1 to 8.

Claims

1. A monitoring device is provided with:

a display unit for displaying information related to the extruder; and

The control unit causes the display unit to display the generated screen.

2. The monitoring device according to claim 1, wherein,

And generating the screen including the graph showing the measured value in time series for each measurement item and a plurality of measurement item frames representing the measurement items, based on the acquired measured values of the measurement items.

3. The monitoring device according to claim 1 or 2, wherein,

4. The monitoring device according to claim 1 or 2, wherein,

The measurement item frame includes a switching section that accepts a switching request for display and non-display of the chart,

The control unit switches between the display and non-display of the graph corresponding to the measurement item of the measurement item frame according to a request for switching between the display and non-display of the graph by the switching unit in the measurement item frame.

5. The monitoring device according to claim 1 or 2, wherein,

The measurement item box includes an accepting portion that accepts a request for highlighting of a chart,

6. The monitoring device according to claim 1 or 2, wherein,

The control unit receives a scroll instruction for the graph,

7. The monitoring device according to claim 1 or 2, wherein,

The screen includes a cursor displayed on the chart,

And displaying the specified measurement value at the specific measurement time by the measurement item box.

8. The monitoring device according to claim 1 or 2, wherein,

The graph of the period received by the movement receiving unit is displayed.

9. An extruder provided with the monitoring device according to claim 1 or 2.

10. An information processing method that causes a computer to execute the following processing:

A measurement value of a measurement item related to the operation condition of the extruder is obtained,

Generating a screen including a graph showing the measurement values in time series and a measurement item frame representing the measurement item based on the acquired measurement values of the measurement item,

And causing a display unit to display the generated screen.

11. A storage medium having a program for causing a computer to execute:

And causing a display unit to display the generated screen.

12. A program product provided with a program that causes a computer to execute:

And causing a display unit to display the generated screen.