ROLLING RECORDING DEVICE, ROLLING RECORDING METHOD, AND ROLLING RECORDING PROGRAM

Abstract

The rolling recorder stores a plurality of camera images acquired by a plurality of cameras photographing a plurality of rolling mills, a control signal input to the rolling mills, actual measurements of the rolling state acquired by a plurality of sensors provided in the rolling line, HMI screen information for creating an HMI screen that simplifies the rolling line, and time information including the acquisition time of the plurality of camera images, the input time of the control signal, and the update time of the HMI screen information. The rolling recorder also executes an update process for updating the HMI screen information based on at least the actual measurements of the rolling state, a generation process for generating an output display screen including a display screen of the target camera image, a display screen of the control signal, and an HMI screen that are synchronized based on the time information, a display process for displaying the output display screen on a monitor, a storage process for saving the output display screen, and a playback process for playing back the history of the output display screen upon request.

Description

[Technical field]

[0001] The present disclosure relates to techniques for recording the condition of a rolling line. [Background technology]

[0002] Patent Document 1 discloses a material recording device that records the material of rolled material. The material recording device records material data obtained by measuring the material of the rolled material with a sensor, process data obtained by measuring the rolling process with a sensor, and image data obtained by capturing the state of the rolled material with a camera. The material recording device reads out the various recorded data (material data, process data, image data) and displays the data continuously or partially. This makes it easy to identify the cause even if an abnormality occurs in the material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2007-083300 Summary of the Invention [Problem to be solved by the invention]

[0004] Consider a case where an abnormality occurs in a rolling line having multiple rolling mills. In this case, since the various data shown in Patent Document 1 alone does not allow an operator to immediately know which rolling mill has the abnormality, it may take a lot of time to investigate the cause. On the other hand, an HMI screen that simplifies the rolling line is used for the operator to operate the rolling line. Therefore, it is desired to improve the mechanism that allows operators to easily understand the rolling state of the rolling line by utilizing not only the sensor acquired information and camera image information but also the HMI screen. It is expected that this will enable operators to smoothly investigate the cause when an abnormality occurs.

[0005] One object of the present disclosure is to provide a technique that enables an operator to easily grasp the rolling status of a rolling line by using information including an HMI screen. [Means for solving the problem]

[0006] A first aspect of the present disclosure relates to a rolling recorder for recording the rolling state of a rolling line in which a plurality of rolling mills are arranged in sequence from the upstream side. The rolling recorder includes one or more processors and one or more storage devices. The one or more storage devices include: Multiple cameras were installed so that one camera could capture two or more rolling mills. The system stores a plurality of camera images taken by a plurality of cameras photographing a plurality of rolling mills, a control signal input to the rolling mills, actual measurements of the rolling state taken by a plurality of sensors provided in the rolling line, HMI screen information for creating an HMI screen that simplifies the rolling line, and time information including the acquisition times of the plurality of camera images, the input time of the control signal, and the update time of the HMI screen information. One or a plurality of processors execute an update process for updating the HMI screen information based on at least the actual measurements of the rolling state, a process for selecting one or more target camera images from the plurality of camera images, a process for selecting a control signal to be input to a rolling mill corresponding to the target camera image from among the plurality of rolling mills, a generation process for generating an output display screen including a display screen of the target camera image, a display screen of the selected control signal, and an HMI screen in which the acquisition time of the target camera image, the input time of the selected control signal, and the update time of the HMI screen information are synchronized, a display process for displaying the output display screen on a monitor, a storage process for saving the output display screen, and a playback process for playing back a history of the output display screen upon request.

[0007] A second aspect of the present disclosure has the following features in addition to the first aspect. The generation process includes: Selected This includes processing for synchronizing the timing of second information and third information, which are different from the first information, with the timing of the first information, which corresponds to the latest time between the input time of the control signal and the update time of the HMI screen information.

[0008] A third aspect of the present disclosure has the following features in addition to the first aspect: When a camera screen corresponding to a rolling mill in which an abnormality has been detected is selected as the target camera image in the display process, the one or more processors highlight the display screen of the target camera image.

[0009] A fourth aspect of the present disclosure has the same features as the first aspect, but further includes the following features: Selected A symbol indicating the playback position is superimposed on the display screen of the control signal.

[0010] A fifth aspect of the present disclosure is to provide a rolling line in which a plurality of rolling mills are arranged in sequence from the upstream side. Using a rolling recorder The rolling recording method relates to a rolling recording method, Multiple cameras were installed so that one camera could capture two or more rolling mills. acquiring a plurality of camera images taken by a plurality of cameras photographing a plurality of rolling mills, acquiring a control signal to be input to the rolling mills, acquiring actual measured values ​​of the rolling state acquired by a plurality of sensors provided in the rolling line, updating HMI screen information for creating an HMI screen that simplifies the rolling line based on at least the actual measured values ​​of the rolling state, acquiring time information including the acquisition times of the plurality of camera images, the input time of the control signal, and the update time of the HMI screen information, selecting one or more target camera images from the plurality of camera images, selecting a control signal to be input to a rolling mill corresponding to the target camera image from among the plurality of rolling mills, generating an output display screen including a display screen of the target camera image, a display screen of the selected control signal, and an HMI screen in which the acquisition time of the target camera image, the input time of the selected control signal, and the update time of the HMI screen information are synchronized, displaying the output display screen on a monitor, saving the output display screen, and playing back a history of the output display screen upon request.

[0011] A sixth aspect of the present disclosure is to provide a rolling line having a plurality of rolling mills arranged in sequence from the upstream side, Using a rolling recorder The rolling record program is related to the rolling record program. Multiple cameras were installed so that one camera could capture two or more rolling mills.The present invention causes a computer to execute the following operations: acquiring a plurality of camera images taken by a plurality of cameras photographing a plurality of rolling machines; acquiring a control signal to be input to the rolling machines; acquiring actual measured values ​​of the rolling state acquired by a plurality of sensors provided in the rolling line; updating HMI screen information for creating an HMI screen that simplifies the rolling line based on at least the actual measured values ​​of the rolling state; acquiring time information including the acquisition times of the plurality of camera images, the input time of the control signal, and the update time of the HMI screen information; selecting one or more target camera images from the plurality of camera images; selecting a control signal to be input to a rolling machine corresponding to the target camera image from among the plurality of rolling machines; generating an output display screen including a display screen of the target camera image, a display screen of the selected control signal, and an HMI screen in which the acquisition time of the target camera image, the input time of the selected control signal, and the update time of the HMI screen information are synchronized; Effect of the Invention

[0012] According to the present disclosure, an output display screen is generated that includes a display screen of a target camera image, a display screen of a control signal, and an HMI screen that are synchronized based on time information including the acquisition time of multiple camera images, the input time of a control signal input to a rolling machine, and the update time of HMI screen information for creating an HMI screen that simplifies a rolling line. Then, a process of saving the output display screen displayed on the monitor and a process of reproducing the history of the output display screen upon request are executed. This allows the worker to easily grasp the rolling state of the rolling line. Therefore, the worker can smoothly investigate the cause of an abnormality and perform maintenance. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a diagram for explaining an overview of a rolling recording system. [Diagram 2] 1 is a block diagram showing a configuration example of a rolling recording device according to an embodiment; [Diagram 3]FIG. 2 is a block diagram showing an example of rolling record processing according to an embodiment. [Figure 4] FIG. 11 is an explanatory diagram showing a specific example of a synchronization process according to the embodiment. [Diagram 5] 10A to 10C are explanatory diagrams showing a specific example of a reproduction process according to the embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] A rolling record device, a rolling record method, and a rolling record program according to an embodiment of the present disclosure will be described with reference to the accompanying drawings. In addition, common elements in each drawing are given the same reference numerals and duplicated explanations will be omitted.

[0015] 1. Overview of the Rolling Recording System FIG. 1 is a diagram for explaining an overview of a rolling recording system 1. The rolling recording system 1 records the rolling state of a rolling line 2. The rolling line 2 is, for example, a hot rolling line or a cold rolling line. The rolling line 2 includes a plurality of rolling mills 4 arranged side by side along the transport direction of a material 3 to be rolled. In other words, the rolling line 2 has a plurality of rolling mills 4 arranged in sequence from the upstream side.

[0016] The rolling line 2 further comprises a plurality of cameras 5 and a plurality of sensors 6. The multiple cameras 5 photograph the multiple rolling mills 4. The multiple cameras 5 are installed, for example, so as to photograph the multiple rolling mills 4 from a predetermined direction. The multiple cameras 5 may be provided for each rolling mill 4, or for each group of rolling mills 4. A group of rolling mills 4 means two or more rolling mills 4 that are included within the angle of view of the camera 5. The multiple camera images acquired by the multiple cameras 5 (For example, 1, 2, and 3 shown in Figure 1) is input to the rolling recorder 10.

[0017] The multiple sensors 6 measure the rolling state of the material 3 to be rolled. The multiple sensors 6 may be provided, for example, on the input side of the first (most upstream) rolling mill 4 in the conveying direction of the material 3 to be rolled, or on the output side of the last (most downstream) rolling mill 4 in the conveying direction of the material 3 to be rolled, or may be provided between rolling mills 4. In other words, the multiple sensors 6 may be disposed in various locations. Examples of the multiple sensors 6 include a plate speed meter, a plate thickness meter, etc. The information acquired by the multiple sensors 6 may be, for example, (For example, 4 and 5 shown in Figure 1) is input to the controller 8.

[0018] Each of the multiple rolling mills 4 includes an actuator 7 and is driven by the actuator 7. An actuator 7 is provided for each rolling mill 4. The actuator 7 performs drive control in accordance with a control signal output from a controller 8. The control signal output from the controller 8 is, for example, a parameter input to the actuator 7. Examples of the parameter include the rotation speed of the rolls included in the rolling mill 4 and the opening degree of the rolls. The parameter input to the actuator 7 may be generated by the controller 8 or may be generated by the rolling recording device 10.

[0019] The rolling recording system 1 includes the above-mentioned rolling line 2, a controller 8, a rolling recording device 10, and a monitor 11.

[0020] The controller 8 executes various processes. Specifically, the controller 8 executes sequence control of the control signal input to the actuator 7, and control for transmitting predetermined information to the rolling recording device 10. The predetermined information includes sensor acquired information (also referred to as actual measured value of rolling state) acquired by the sensor 6. Furthermore, the predetermined information may include information related to the control signal (information of the control signal input to the actuator 7, input time of the control signal, etc.).

[0021] The controller 8 may include, for example, one or more processors (not shown) and one or more storage devices (not shown), or may include one or more dedicated hardware (not shown). As a specific example, the controller 8 is a PLC (Programmable Logic Controller).

[0022] The rolling recording device 10 records as an image the rolling state of the rolling line 2. Specifically, the rolling recording device 10 generates an output display screen to be displayed on the monitor 11. The output display screen includes a plurality of display screens.

[0023] In the example shown in Fig. 1, the output display screen is composed of a first display screen, a second display screen, and a third display screen. For example, the first display screen displays a target camera image among a plurality of camera images acquired by a plurality of cameras 5, the second display screen displays an HMI screen, and the third display screen displays an HMI screen. display A control signal input to the rolling mill 4 (actuator 7) is displayed on the screen. Note that each of the multiple display screens may be displayed on the same monitor 11, or each may be displayed on a separate monitor 11.

[0024] The HMI screen is a schematic representation of the rolling line 2. For example, actual measured values ​​of the rolling state obtained by a plurality of sensors 6 are displayed on the HMI screen. For example, the HMI screen is displayed by executing a program generated by a dedicated HMI tool. The HMI screen is updated based on at least the actual measured values ​​of the rolling state.

[0025] Then, the rolling recorder 10 displays (outputs) the generated output display screen on the monitor 11. A specific example of the rolling recorder 10 will be described in detail below.

[0026] 2. Example of rolling recorder 2-1. Configuration example FIG. 2 is a block diagram showing an example of the configuration of the rolling recording device 10 according to the embodiment.

[0027] The rolling recording device 10 includes one or more processors 20 (hereinafter simply referred to as the processor 20) and one or more storage devices 30 (hereinafter simply referred to as the storage device 30). The processor 20 executes the rolling recording process. An example of the processor 20 is a CPU (Central Processing Unit). The storage device 30 stores various information required for processing by the processor 20. An example of the storage device 30 is a volatile memory, a non-volatile memory, a HDD (Hard Disk Drive), an SSD (Solid State Drive), etc. The rolling recording process executed by the processor 20 will be described in detail later.

[0028] The rolling record program (not shown) is a computer program executed by the processor 20. The various functions of the rolling record device 10 may be realized by the processor 20 executing the rolling record program. The rolling record program is stored in the storage device 30. Alternatively, the rolling record program may be recorded in a computer-readable storage medium.

[0029] The various types of information stored in the storage device 30 include camera image information 31, sensor acquisition information 32, control signal information 33, HMI screen information 34, and time information 35.

[0030] The camera image information 31 is the camera images captured by each of the multiple cameras 5, as described above.

[0031] The sensor acquired information 32 is, as described above, actual measurement values ​​of the rolling state acquired by the multiple sensors 6 provided in the rolling line 2.

[0032] As described above, the control signal information 33 includes the control signals input to each of the plurality of rolling mills 4 (actuators 7).

[0033] The HMI screen information 34 is information for creating an HMI screen that illustrates a schematic representation of the rolling line 2. The HMI screen information 34 is, for example, a program generated by a dedicated HMI tool.

[0034] The time information 35 includes the capture times of the multiple camera images, the input times of the control signals input to the rolling machine 4 (actuators 7), and the update times of the HMI screen information 34. The update times of the HMI screen information 34 are, for example, the times when updating of the HMI screen information 34 is completed. The updating of the HMI screen information 34 is performed based on at least the sensor acquired information 32 (actual measured values ​​of the rolling state).

[0035] 2-2. Processing example 3 is a block diagram showing an example of rolling record processing according to an embodiment. The rolling record processing executed by the processor 20 includes an HMI screen update process 21, a display target selection process 22, a synchronization process 23, an output display screen generation process 24, a monitor display process 25, an output display screen storage process 26, and an output display screen history playback process 27.

[0036] The processor 20 executes processes in the order of, for example, HMI screen update process 21, display target selection process 22, synchronization process 23, output display screen generation process 24, monitor display process 25, output display screen storage process 26, and output display screen history playback process 27. Each process will be described in detail below.

[0037] In the HMI screen update process 21, the processor 20 updates the HMI screen information 34 based on at least the sensor acquired information 32 (actual measured values ​​of the rolling state, etc.).

[0038] In the display target selection process 22, the processor 20 selects a target camera image to be displayed on the output display screen from among multiple camera images based on the camera image information 31. The number of target camera images may be one or may be two or more. Then, the processor 20 selects a control signal to be input to the rolling machine 4 (actuator 7) corresponding to the target camera image based on the control signal information 33. Furthermore, the processor 20 selects a screen to be displayed on the monitor 11. At least three of the screens to be displayed on the monitor 11 are selected: the target camera image, the control signal, and the updated HMI screen. The control signal to be displayed on the monitor 11 may be only the control signal corresponding to the target camera image.

[0039] In synchronization process 23, processor 20 acquires the capture time (first time) of the target camera image, the input time (second time) of the control signal, and the update time (third time) of the HMI screen based on time information 35. Then, processor 20 synchronizes the target camera image, the control signal, and the updated HMI screen based on the first time, the second time, and the third time. Details of synchronization process 23 will be described later.

[0040] In output display screen generation process 24, processor 20 generates output display screens including a display screen for the target camera image (first display screen), a display screen for the control signal (second display screen), and an HMI screen (third display screen). Each of the second and third display screens is encoded to be converted into the same format as the first display screen.

[0041] In monitor display processing 25, the processor 20 displays (outputs) the output display screen on the monitor 11. Specifically, the output display screen is converted into a frame rate compatible with the monitor 11 and then output to the monitor 11.

[0042] In output display screen saving process 26, processor 20 captures the output display screen output on monitor 11 based on an operation from the worker. The captured image of the output display screen is called the output display screen history. The output display screen history is saved in storage device 30. The time period during which the output display screen is captured is determined by an operation from the worker.

[0043] In the output display screen history playback process 27, the processor 20 plays back the output display screen history based on an operation from the operator. The output display screen history playback process 27 will be described later in detail.

[0044] 2-3. Example of synchronous processing 4 is an explanatory diagram showing a specific example of the synchronization process 23 according to the embodiment. Consider the synchronization process 23 based on the acquisition time of the camera image, the input time of the control signal, and the update time of the HMI screen information 34, all of which are included in the time information 35.

[0045] The time at which the camera image is captured depends on, for example, the distance between the camera 5 and the rolling recording device 10. In this case, the shorter the distance, the earlier the time at which the camera image is captured, and the longer the distance, the later the time at which the camera image is captured.

[0046] The input time of the control signal depends on, for example, the distance between the rolling mill 4 and the rolling recording device 10 and the waiting time from when the control signal is generated until when it is input to the rolling mill 4. In this case, the shorter the distance, the earlier the input time of the control signal, and the longer the distance, the later the input time of the control signal. Furthermore, the shorter the waiting time, the earlier the input time of the control signal, and the longer the waiting time, the later the input time of the control signal. The waiting time is determined by the sequence control of the controller 8.

[0047] Consider the update time of the HMI screen information 34. The HMI screen is updated based on the sensor acquired information 32 (actual measured values ​​of the rolling state). Therefore, the update time of the HMI screen information depends on, for example, the distance between the sensor 6 and the rolling recording device 10 and the time required to update the HMI screen. In this case, the shorter the distance, the earlier the update time of the HMI screen information 34 will be, and the longer the distance, the later the update time of the HMI screen information 34 will be. Furthermore, the shorter the time required to update the HMI screen, the earlier the update time of the HMI screen information 34 will be, and the longer the time required to update the HMI screen, the later the update time of the HMI screen information 34 will be.

[0048] In this way, the timing of the target camera image displayed on the first display screen of the output display screen, the control signal displayed on the second display screen, and the HMI screen displayed on the third display screen are all different, so it is necessary to synchronize the target camera image, the control signal, and the HMI screen to match one of them.

[0049] According to this embodiment, the rolling recording device 10 (processor 20) synchronizes the timing of each of the second information and third information, which are different from the first information, with the timing of the information (first information) corresponding to the latest time among the time the target camera image was acquired, the time the control signal was input, and the time the HMI screen information was updated, based on the time information 35.

[0050] Specifically, processor 20 extracts the first information corresponding to the latest time among the acquisition time of the target camera image, the input time of the control signal, and the update time of the HMI screen information. Then, processor 20 subtracts the time of the first information from the time of the second information, and subtracts the time of the first information from the time of the third information. Furthermore, processor 20 delays the timing of each of the second information and the third information based on the time obtained by the subtraction.

[0051] In the example shown in Figure 4, the input time of the control signal, the acquisition time of the target camera image, and the update time of the HMI screen are acquired in that order. In this case, the timing of the control signal and the target camera image are synchronized with the timing of the HMI screen corresponding to the latest time. This makes it possible to synchronize all information displayed on the output display screen.

[0052] 2-4. Examples of regeneration processing FIG. 5 is an explanatory diagram showing a specific example of a playback process 27 of the history of the output display screen according to the embodiment. The rolling recorder 10 (processor 20) plays back the history of the output display screen based on an instruction from an operator using an operation button. A playback screen is used for playing back the history of the output display screen. The playback screen may include only the output display screen, or may include two screens, the output display screen and the control button screen, as shown in FIG. 5. The control button screen may be a touch panel display that can be operated by an operator. Examples of the operation buttons include a play button, a reverse play button, a stop button, a pause button, a slow play button, a fast forward button, a fast rewind button, a repeat button, and the like.

[0053] Consider a method of displaying the control signal displayed on the third display screen of the output display screen when the playback process 27 of the history of the output display screen is executed. For example, as shown in FIG. 5, when the control signal on the third display screen is displayed as a graph, the operator cannot grasp where on the graph the playback position is. Therefore, the processor 20 superimposes a symbol indicating the playback position on the third display screen. The playback position means the current frame. This allows the operator to grasp where on the graph the playback position is.

[0054] 3. Variations 3-1. First Example In the example shown in Fig. 3 described above, after execution of synchronization process 23, a display screen of the target camera image (first display screen), a display screen of the control signal (second display screen), and an HMI screen (third display screen) are generated in output display screen generation process 24. However, this is not limited to this. For example, in output display screen generation process 24, synchronization process 23 may be executed between the generation of the first display screen, the second display screen, and the third display screen and the generation of the output display screen. In other words, output display screen generation process 24 may include synchronization process 23.

[0055] 3-2. Second Example During the display of the output display screen, the camera image displayed on the display screen (first display screen) of the target camera image may be switched to another camera image. In this case, the processor 20 newly executes the above-mentioned display target selection process 22, synchronization process 23, output display screen generation process 24, and monitor display process 25.

[0056] 3-3.Third Example When a camera screen corresponding to the rolling mill 4 in which an abnormality has been detected is selected as the target camera image, the display screen (first display screen) of the target camera image may be highlighted. This allows the worker to shift his / her gaze to the highlighted image. Therefore, the rolling mill 4 in which an abnormality has been detected can be easily identified.

[0057] 4.Effects According to the rolling recording device 10 of the embodiment, an output display screen including a display screen of a target camera image, a display screen of a control signal, and an HMI screen synchronized based on time information including the acquisition time of a plurality of camera images, the input time of a control signal input to a rolling mill, and the update time of HMI screen information for creating an HMI screen that simplifies a rolling line is generated. Then, a process of saving the output display screen displayed on the monitor and a process of reproducing the history of the output display screen upon request are executed. This allows the worker to easily grasp the rolling state of the rolling line. Therefore, the worker can smoothly investigate the cause of an abnormality and perform maintenance. [Explanation of symbols]

[0058] 1...Rolling recording system, 2...Rolling line, 3...Rolled material, 4...Rolling mill, 5...Camera, 6...Sensor, 7...Actuator, 8...Controller, 10...Rolling recording device, 11...Monitor, 20...Processor, 21...HMI screen update process, 22...Display object selection process, 23...Synchronization process, 24...Output display screen generation process, 25...Monitor display process, 26...Output display screen storage process, 27...Output display screen history playback process, 30...Storage device, 31...Camera image information, 32...Sensor acquisition information, 33...Control signal information, 34...HMI screen information, 35...Time information

Claims

1. A rolling recorder for recording the rolling state of a rolling line in which a plurality of rolling mills are arranged in sequence from the upstream side, comprising: One or more processors and one or more storage devices; The one or more storage devices include A plurality of cameras are installed so that one camera can photograph two or more rolling mills, and a plurality of camera images are acquired by the plurality of cameras photographing the plurality of rolling mills; A control signal input to the rolling mill; Actual measurements of the rolling state acquired by a plurality of sensors installed in the rolling line; HMI screen information for creating an HMI screen that simplifies the rolling line; time information including the acquisition time of the plurality of camera images, the input time of the control signal, and the update time of the HMI screen information; Store the The one or more processors: an update process for updating the HMI screen information based on at least the actual measured value of the rolling state; selecting one or more target camera images from the plurality of camera images; A process of selecting a control signal to be input to a rolling mill corresponding to the target camera image from among the plurality of rolling mills; a generation process for generating an output display screen including a display screen of the target camera image, a display screen of the selected control signal, and the HMI screen, in which the acquisition time of the target camera image, the input time of the selected control signal, and the update time of the HMI screen information are synchronized; a display process for displaying the output display screen on a monitor; a storage process for storing the output display screen; a playback process for playing back the history of the output display screen upon request; A rolling recording device configured to execute the above.

2. The rolling recording device according to claim 1, the acquisition time of the camera image is dependent on a first distance between the camera and the rolling recorder; the input time of the control signal depends on a second distance between the rolling mill and the rolling recorder and a waiting time from generation of the control signal to input to the rolling mill; The update time of the HMI screen information depends on a third distance between the sensor and the rolling recorder and an update time indicating a time required to update the HMI screen. A rolling recording device characterized by:

3. The rolling recording device according to claim 2, The acquisition time of the camera image is earlier as the first distance is shorter, and is later as the first distance is longer, the input time of the control signal is earlier as the second distance is shorter and the waiting time is shorter, and is later as the second distance is longer and the waiting time is longer, The update time of the HMI screen information is set earlier as the third distance is shorter and the update time is shorter, and is set later as the third distance is longer and the update time is longer. A rolling recording device characterized by:

4. The rolling recorder according to any one of claims 1 to 3, The generation process includes a process of synchronizing the timing of each of the second information and the third information, which are different from the first information, with the timing of the first information corresponding to the latest time among the acquisition time of the target camera image, the input time of the selected control signal, and the update time of the HMI screen information. A rolling recording device characterized by:

5. The rolling recorder according to any one of claims 1 to 3, The one or more processors, in the display processing, A rolling recording device characterized in that, when a camera screen corresponding to a rolling mill in which an abnormality has been detected is selected as the target camera image, the display screen of the target camera image is highlighted.

6. The rolling recorder according to any one of claims 1 to 3, The one or more processors, in the reproduction process, A rolling recorder characterized in that a symbol indicating a playback position is superimposed on a display screen of the selected control signal.

7. A rolling recording method for recording a rolling state of a rolling line in which a plurality of rolling mills are arranged in sequence from an upstream side using a rolling recording device, comprising: A plurality of cameras are installed so that one camera can photograph two or more rolling mills, and a plurality of camera images are acquired by the plurality of cameras photographing the plurality of rolling mills; Obtaining a control signal input to the rolling mill; Obtaining actual measurements of a rolling state obtained by a plurality of sensors provided in the rolling line; updating HMI screen information for creating an HMI screen that simplifies the rolling line based on at least the actual measured values ​​of the rolling state; Acquiring time information including the acquisition time of the plurality of camera images, the input time of the control signal, and the update time of the HMI screen information; selecting one or more target camera images from the plurality of camera images; selecting a control signal to be input to a rolling mill corresponding to the target camera image from among the plurality of rolling mills; generating an output display screen including a display screen of the target camera image, a display screen of the selected control signal, and the HMI screen, in which the acquisition time of the target camera image, the input time of the selected control signal, and the update time of the HMI screen information are synchronized; displaying the output display screen on a monitor; saving the output display screen; replaying the history of the output display screen upon request; Includes A rolling recording method comprising the steps of:

8. The rolling recording method according to claim 7, the acquisition time of the camera image is dependent on a first distance between the camera and the rolling recorder; the input time of the control signal depends on a second distance between the rolling mill and the rolling recorder and a waiting time from generation of the control signal to input to the rolling mill; The update time of the HMI screen information depends on a third distance between the sensor and the rolling recorder and an update time indicating a time required to update the HMI screen. A rolling recording method comprising the steps of:

9. The rolling recording method according to claim 8, The acquisition time of the camera image is earlier as the first distance is shorter, and is later as the first distance is longer, the input time of the control signal is earlier as the second distance is shorter and the waiting time is shorter, and is later as the second distance is longer and the waiting time is longer, The update time of the HMI screen information is set earlier as the third distance is shorter and the update time is shorter, and is set later as the third distance is longer and the update time is longer. A rolling recording method comprising the steps of:

10. A rolling record program for recording a rolling state of a rolling line in which a plurality of rolling mills are arranged in sequence from the upstream side using a rolling recorder, A plurality of cameras are installed so that one camera can photograph two or more rolling mills, and a plurality of camera images are acquired by the plurality of cameras photographing the plurality of rolling mills; Obtaining a control signal input to the rolling mill; Obtaining actual measurements of a rolling state obtained by a plurality of sensors provided in the rolling line; updating HMI screen information for creating an HMI screen that simplifies the rolling line based on at least the actual measured values ​​of the rolling state; Acquiring time information including the acquisition time of the plurality of camera images, the input time of the control signal, and the update time of the HMI screen information; selecting one or more target camera images from the plurality of camera images; selecting a control signal to be input to a rolling mill corresponding to the target camera image from among the plurality of rolling mills; generating an output display screen including a display screen of the target camera image, a display screen of the selected control signal, and the HMI screen, in which the acquisition time of the target camera image, the input time of the selected control signal, and the update time of the HMI screen information are synchronized; displaying the output display screen on a monitor; saving the output display screen; replaying the history of the output display screen upon request; configured to cause a computer to execute A rolling record program comprising:

11. The rolling record program according to claim 10, the acquisition time of the camera image is dependent on a first distance between the camera and the rolling recorder; the input time of the control signal depends on a second distance between the rolling mill and the rolling recorder and a waiting time from generation of the control signal to input to the rolling mill; The update time of the HMI screen information depends on a third distance between the sensor and the rolling recorder and an update time indicating a time required to update the HMI screen. A rolling record program comprising:

12. A rolling record program according to claim 11, The acquisition time of the camera image is earlier as the first distance is shorter, and is later as the first distance is longer, the input time of the control signal is earlier as the second distance is shorter and the waiting time is shorter, and is later as the second distance is longer and the waiting time is longer, The update time of the HMI screen information is set earlier as the third distance is shorter and the update time is shorter, and is set later as the third distance is longer and the update time is longer. A rolling record program comprising:

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