JP2012019272A - Moving image storage device and moving image storage system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a compact moving image storage device capable of recording flickering information by dispensing with a conventional image storage terminal having a storage device for storing a series of images.SOLUTION: The moving image storage device is equipped with: a moving image acquisition unit 102 which acquires image information by sampling the image information from a frame buffer 4 for storing image information to be displayed on a monitoring control terminal 92; and a moving image storage unit 101 which receives transmission image data based on the image information from the moving image acquisition unit 102 via a communication line 80 and stores moving image data of a predetermined system in a moving image storage device 20.

Description

  The present invention relates to a display state history and operation content history storage technology performed using a human machine interface (HMI) device, and more particularly to a monitoring control system such as a power system monitoring control system and a monitoring control system in the training simulator system. The present invention relates to a device that records video displayed on a terminal (HMI device) as a moving image.

  Conventionally, when performing control operations that change the state of power system equipment using the functions of the power system monitoring and control system, evidence of the operation content is provided by methods such as printing a hard copy of the screen as needed at the discretion of the operator. The operation to leave is taken.

  Patent Document 1 describes an image recording system that can automatically leave the above-mentioned evidence. The conventional image recording system has means for storing the operation contents performed on the monitoring control terminal (HMI device) of the information system as MPEG2 format image data and means for reproducing the stored image data. Also, an image storage terminal corresponding to each HMI device is prepared, and image data stored in the terminal-side storage device from a plurality of terminal-side storage devices in the image storage terminal is stored in the image storage server via the hub device. It was.

Japanese Patent Laying-Open No. 2007-266685 (FIG. 1)

  When storing video in a monitoring control system such as a power system monitoring control system as a moving image, when an accident or abnormality occurs in the monitored device, the display color and display status of the figure and monitoring value corresponding to the device, especially The image must be able to accurately recognize the blinking cycle information of the blinking figure. That is, it is necessary to sample an image with a period shorter than the time when the blink information is turned on or the time when the blinking information is turned off.

  In the conventional image recording system, an image storage terminal corresponding to each HMI device is prepared, and the video signal extracted from the HMI controller of the HMI device is distributed to the image storage terminal and stored in the storage device of the image storage terminal. By shortening the cycle, it is possible to record video reflecting the blinking information of the device. However, the conventional image recording system has an image storage terminal corresponding to each HMI device, and further includes a terminal-side storage device for each image storage terminal, so that the image storage terminal is considerably large. Therefore, there is a problem that the image recording system including the image storage terminal and the image storage server also becomes large. Further, in order to cope with a large power system monitoring control system provided with a large number of HMI devices, it is necessary to arrange a large number of image storage terminals, and there is a problem that the image recording system becomes further large. In addition, there are many cases where it is difficult to secure an arrangement space for a large image recording system, and there is a problem that it cannot be applied to a monitoring control system.

  SUMMARY OF THE INVENTION An object of the present invention is to obtain a small moving image storage device that can eliminate the need for an image storage terminal and record blink information.

Sampling from the frame buffer that stores the video information displayed on the surveillance control terminal,
A moving image acquisition unit that acquires image information and a moving image storage unit that receives transmission image data based on the image information from the moving image acquisition unit through a communication line and stores moving image data of a predetermined method in a moving image storage device.

  In the moving image storage device according to the present invention, since the moving image acquisition unit that samples the video information from the frame buffer and the moving image storage unit including the moving image storage device are arranged via the communication line, the flashing information can be recorded in a small size. be able to.

It is a figure which shows the example of application of the moving image storage apparatus in Embodiment 1 of this invention. It is a figure which shows the example of the management information preserve | saved at the management information storage device 21 of FIG. It is a figure which shows the example of application of the moving image storage apparatus in Embodiment 2 of this invention. It is a figure which shows the example of application of the moving image storage apparatus in Embodiment 3 of this invention. It is a figure which shows the example of application of the moving image storage apparatus in Embodiment 4 of this invention.

Embodiment 1 FIG.
FIG. 1 is a diagram showing an application example of the moving image storage apparatus according to Embodiment 1 of the present invention. This is an example in which the moving image storage apparatus 100 according to the first embodiment acquires and stores video from the monitoring control system 90. The monitoring control system 90 includes a monitoring control device (video information source device) 91 and a monitoring control terminal 92, and monitors and controls a plurality of target devices 60a, 60b, 60c, 60d, 60e, 60f, and 60g that are monitoring targets. It is carried out. The moving image storage device 100 converts the video information of the monitoring control system 90 into a moving image and stores it as a moving image file. The moving image file stored in the moving image storage device 20 of the moving image storage device 100 is reproduced by the moving image reproduction device 110. The moving image storage device 100 and the moving image playback device 110 constitute a moving image storage system.

  The moving image storage device 100 includes a moving image storage unit 101 and a moving image acquisition unit 102. The video acquisition unit 102 acquires video information acquisition unit 10 that acquires video information of a video displayed on the monitoring control terminal 92, and information distribution unit 11 that distributes the video information acquired by the video information acquisition unit 10 to the video acquisition unit 101. And a storage command generation unit 17. The moving image storage unit 101 includes an information reception unit 12, a frame construction unit 13, an encoding unit 14, a storage unit 15, a file management unit 16, a moving image storage device 20, and a management information storage device 21. The moving image acquisition unit 102 is disposed in the monitoring control terminal 92.

  The monitoring control device 91 of the monitoring control system 90 includes a plant data input / output unit 1, a state monitoring processing unit 2, a device control processing unit 9, a monitoring result recording processing unit 22, and monitoring result history information 23. The monitor control terminal 92 of the monitor control system 90 includes a display processing means 3, a frame buffer 4, a video control device 5, three monitor devices 6a, 6b, 6c, an input device 7 such as a keyboard, and a mouse. An input device 18 and input reception processing means 8 are provided. The moving image reproduction apparatus 110 includes a selection unit 30, a decoding unit 31, a display processing unit 32, a video control device 34, three monitor devices 35a, 35b, and 35c, and a storage device 40.

Monitoring data indicating the status of the target devices 60 a to 60 g that are the monitoring targets is input to the plant data input / output unit 1. The states of the target devices 60a to 60g are used for determination of normality or abnormality, numerical calculation, or the like in the state monitoring processing unit 2. The processing result of the state monitoring processing unit 2 is sent to the display processing means 3 of the monitoring control terminal 92. Further, the processing result of the state monitoring processing unit 2 is registered in the monitoring result history information 23 by the monitoring result recording processing unit 22. The data received from the state monitoring processing unit 2 is processed into a display image by the display processing means 3 and displayed on the monitor devices 6a, 6b and 6c via the frame buffer 4 and the video control device 5. The video control device 5 is a so-called graphic board or the like, and performs screen size change and screen display processing in accordance with the monitor devices 6a, 6b, and 6c. The plant operator operates the input device 7 or the input device 18 and inputs a control command or the like from the information displayed on the monitor devices 6a, 6b, and 6c. The input reception processing unit 8 processes signals from the input device 7 and the input device 18 and sends a control command to the device control processing unit 9. The device control processing unit 9 generates a control signal for the corresponding device and sends the control signal to the corresponding device via the plant data input / output unit 1. Further, the control information executed by the device control processing unit 9 is transmitted to the display processing means 3, and this information is also displayed on the monitor devices 6a, 6b, 6c.

  Next, the operation of the moving image storage apparatus 100 will be described. The video displayed on the monitor control terminal 92 of the monitor control system 90 is displayed on the monitor devices 6 a to 6 c by converting the memory image developed in the frame buffer 4 by the display processing means 3 into a video image through the video control device 5. Is done. The memory image of the frame buffer 4 is acquired by the moving image acquisition unit 102 at a predetermined sampling period. The predetermined sampling period will be described later. The timing of the start of moving image storage and the end of moving image storage is designated by the operator, and the image information acquisition means 10 is triggered using the save command generation unit 17. The video information acquisition unit 10 of the video acquisition unit 102 receives the video storage start command from the storage command generation unit 17, reads the memory image of the frame buffer 4, and generates information to be input to the video storage unit 101. The information distribution unit 11 compresses the video information generated by the video information acquisition unit 10 and transmits the compressed image information to the information reception unit 12 of the moving image storage unit 101 through the communication line 80. The information receiving means 12 decompresses the compressed image information and transmits it to the frame construction means 13. Here, the video information acquisition means 10 and the information distribution means 11 operate by a server-side program of remote operation software, and the information reception means 12 operates by the client-side program. The moving image acquisition unit 102 is installed in the monitoring control terminal 92.

  By adopting an RFB (remote frame buffer) protocol as a video information transmission method between the information distribution unit 11 and the information reception unit 12, it is possible to suppress a necessary calculation processing amount and transmission data amount. The RFB protocol is a simple protocol for remote access to a graphical user interface, operates at the frame buffer level, and can handle differential information, thereby reducing the amount of calculation processing and the amount of transmission data. The video information output from the information receiving unit 12 is converted into moving image data of a predetermined format using the frame construction unit 13 and the moving image encoding unit 14 and transmitted to the storage unit 15. The storage unit 15 sends the moving image data to the file management unit 16, and the file management unit 16 stores the moving image data as a moving image file in the moving image storage device 20. The file management unit 16 finishes the process, and each time moving image data is transmitted from the storage unit 15, the file management unit 16 performs a process of adding and storing video in the same moving image file.

  The frame construction unit 13 has a frame rate of 20 fps (frame per second) so that the moving image becomes 20 images per second, for example, so as to have the same cycle as the predetermined sampling cycle sampled by the moving image acquisition unit 102. Construct a frame. The moving image encoding means 14 performs data conversion (coding) into moving image data of a predetermined method. When storing the moving image file in the moving image storage device 20, the file management unit 16 registers management information such as index information in accordance with the management information storage device 21.

Here, the above-described predetermined sampling period will be described. In a monitoring control system such as a power system monitoring control system, when an accident or abnormality occurs in a monitoring target device, a figure or a monitoring value corresponding to the device on the monitor blinks. These blinking blinking information, that is, blinking information that blinks the state of the monitoring target device blinks in a cycle of 400 ms with a lighting time of 200 ms and a light-off time of 200 ms, for example, in the case of a short blinking cycle. In this case, for example, if the video is acquired at a sampling period of 50 ms, the blinking information can be correctly recognized. Therefore, the predetermined sampling period is set to a period in which lighting and extinction can be reproduced, that is, blinking information can be correctly recognized. The frame rate of a moving image sampled at a period of 50 ms is 20 fps. The display processing unit 3 receives the request from the state monitoring processing unit 2 and updates the frame buffer 4 in real time. Therefore, the frame rate in the frame buffer 4 cannot be calculated. Since the apparent frame rate in the monitor devices 6a, 6b, and 6c matches the vertical synchronization frequency when the video control device operates, it is generally 60 Hz (= 60 fps) in a liquid crystal monitor compliant with the VESA standard.

  FIG. 2 is a diagram illustrating an example of management information. The management information has an image ID and incidental information for each file ID that distinguishes moving image files. Attached information includes time information such as start date and time, end date and time, plant status (switch ON / OFF status, measured values of voltage and power flow, etc.), and plant status message (accident equipment name, location where an error occurred) It is video related information such as. The image ID is a terminal ID for distinguishing the monitoring control terminal 92 and a number such as a serial number. The image ID is added to the memory image acquired from the video information acquisition unit 10. The memory image to which the image ID is added becomes the above-described video information. The moving image related information such as the plant status and the plant status message is acquired from the monitoring result history information 23 of the monitoring controller 91 and transmitted to the file management unit 16.

  When the video information acquisition unit 10 of the video acquisition unit 102 receives the video storage end command from the storage command generation unit 17, the video information acquisition unit 10 reads the memory image at that time from the frame buffer 4 at the acquisition timing after the video storage end command. The subsequent reading of the memory image is terminated. The video information acquisition unit 10 generates information to be input to the moving image storage unit 101, and further adds end information indicating the end of moving image storage, for example, time information when receiving an end flag or a moving image storage end command, and the information distribution unit 11 to send. The last video and end information are sent to the storage means 15 via the information receiving means 12, the frame construction means 13, and the encoding means 14. The storage unit 15 reads the end information and sends management information such as the end time to the file management unit 16 together with the last moving image data. The file management unit 16 stores the moving image data as a moving image file in the moving image storage device 20 and registers the management information together with the management information storage device 21.

  Unlike the conventional video storage device 100 according to the first embodiment, which requires an image storage terminal having a storage device for each monitoring control terminal 92, the video acquisition unit 102 receives video information from the frame buffer 4 of the monitoring control terminal 92. (Raster image) is taken out, and the video information is transmitted through the communication line 80 in accordance with the RFB protocol, and converted into moving image data by the moving image storage unit 101 and stored. Therefore, a large storage terminal, which is conventional dedicated hardware, is unnecessary, and the moving image storage device 100 can be made compact because it can record blinking information.

  Since the moving image acquisition unit 102 is small, no great constraint is imposed on the layout of the monitoring control terminal 92. Further, since the moving image acquisition unit 102 can be arranged separately from the moving image storage unit 101 having the moving image storage device 20 such as a large-capacity hard disk, the degree of freedom of arrangement of the moving image storage device 100 can be increased. Further, if the surveillance control system 90 that is an existing video acquisition target has a frame buffer, data can be acquired from the frame buffer. In addition, when the existing monitor control system 90 does not have a frame buffer, the moving image storage apparatus 100 according to the first embodiment can be applied to the existing monitor control system 90 by modifying the frame buffer. .

Next, the moving image playback device 110 will be described. The selection means 30 refers to the management information (index information) stored in the management information storage device 21 and measures the time information and the state of the moving image related information (switch ON / OFF state, voltage and power flow measurement). A target moving image file is selected from the moving image storage device 20 on the basis of a value (such as a value) or a message of the state of the plant (accident equipment name, abnormality occurrence location). The moving image file selected by the selection means 30 is input to the decoding means 31, where the decoding means 31 decodes and the display means 32 processes the display image. The display image processed by the display means 32 is displayed on the monitor devices 35a, 35b, and 35c via the video control device 34. The display means 32 and the video control device 34 are the same as the display processing means 3 and the video control device 5 of the monitoring control terminal 92, respectively. The selection means 30 transfers the selected moving image file to the storage device 40 and copies it to a file retrieval medium. The selected video file can be copied to media and taken out.

  In the moving image storage apparatus 100 according to the first embodiment, since the video information acquisition unit 10, the information distribution unit 11, and the information reception unit 12 are configured by software, correction and maintenance can be performed in a short time. Since correction and maintenance can be performed in a short time, it is possible to extremely shorten a period during which the video of the monitoring control system 90 that performs monitoring control of the plant in a 24-hour system cannot be recorded. Since video images are acquired and transmitted by software without using dedicated hardware, a video storage function can be introduced at low cost. Further, by providing a function of copying a moving image file to a medium, there is an effect of increasing the reuse value of the moving image.

  As described above, according to the moving image storage apparatus 100 of the first embodiment, the moving image acquisition unit 102 that acquires the image information by sampling the image information displayed on the monitoring control terminal 92 from the frame buffer 4 and the image information. The image data is sampled from the frame buffer 4 since the transmission image data based on the video data is received from the video acquisition unit 102 through the communication line 80 and the video storage unit 101 stores the video data of a predetermined method in the video storage device 20. The moving image acquisition unit 102 and the moving image storage unit 101 having the moving image storage device 20 can be arranged via the communication line 80, and the flashing information can be recorded in a small size.

Embodiment 2. FIG.
FIG. 3 is a diagram illustrating an application example of the moving image storage apparatus according to the second embodiment of the present invention. This is an example in which the moving image storage apparatus 100 (100b) according to the second embodiment acquires and stores video from the monitoring control system 90 (90b) including a plurality of monitoring control terminals 92. The moving image storage device 100b shown in FIG. 3 differs from the moving image storage device 100a of the first embodiment in that it includes two moving image acquisition units 102a and 102b corresponding to the two monitoring control terminals 92a and 92b.

  The monitoring control system 90 (90b) includes a monitoring control device 91 and two monitoring control terminals 92a and 92b, and a plurality of target devices 60a, 60b, 60c, 60d, 60e, 60f, and 60g (see FIG. 1). ) Is monitored and controlled. The moving image storage device 100 (100b) includes a moving image storage unit 101 and two moving image acquisition units 102a and 102b. The supervisory control terminals 92a and 92b are the same as the supervisory control terminal 92 of the first embodiment. The moving image acquisition units 102a and 102b are the same as the moving image acquisition unit 102 of the first embodiment.

The operation of the moving image storage device 100b will be described. A series of operations in response to a moving image storage start command from either of the storage command generation units 17a and 17b is the same as in the first embodiment. Operations different from those of the first embodiment will be described. A case where the two moving image acquisition units 102a and 102b operate simultaneously will be described. For example, when the moving image storage start command is received from the storage command generation unit 17a and the moving image acquisition unit 102a is communicating with the moving image storage unit 101, that is, the memory of the frame buffer 4a of the monitoring control terminal 92a via the moving image acquisition unit 102a. When an image is acquired and data is flowing through the communication line 80, when a moving image storage start command is received from the storage command generation unit 17b and the moving image acquisition unit 102b attempts to communicate with the moving image storage unit 101, the moving image acquisition is performed. The unit 102a becomes a master, and the communication line 80 is released to the moving image acquisition unit 102b when a transmission packet of one pixel or the like ends. The moving image acquisition unit 102b acquires a memory image of the frame buffer 4b of the monitoring control terminal 92b according to an instruction from the moving image acquisition unit 102a and transmits the memory image to the information receiving unit 12 through the communication line 80. This time, the moving image acquisition unit 102b becomes a master, and the communication line 80 is released to the moving image acquisition unit 102a when a transmission packet of one pixel or the like ends. Note that identification information for distinguishing the plurality of moving image acquisition units 102 is added to the transmission packet of the video information.
The moving image storage unit 101 uses this identification information to construct a moving image file corresponding to the plurality of moving image acquisition units 102.

  The video information divided into packets of 1 pixel or the like output from the information receiving unit 12 is converted into moving image data of a predetermined format using the frame construction unit 13 and the moving image encoding unit 14 and transmitted to the storage unit 15. The storage unit 15 sends the moving image data to the file management unit 16, and the file management unit 16 stores the two moving image data corresponding to the respective moving image acquisition units 102a and 102b in the moving image storage device 20 as two moving image files. The file management unit 16 finishes the process, and each time the moving image data is transmitted from the storage unit 15, the file management unit 16 performs processing to add and store the video in the same moving image file for each data of the moving image acquisition units 102 a and 102 b.

  Since the moving image storage apparatus 100b according to the second embodiment includes the plurality of moving image acquisition units 102 (102a, 102b) corresponding to the plurality of monitoring control terminals 92 (92a, 92b), the plurality of monitoring control terminals 92 (92a, 92b) video information (raster image) can be acquired in parallel. Even in the case where there are a plurality of monitoring control terminals 92 (92a, 92b), it is only necessary to increase the number of moving image acquisition units 102 by the number of monitoring control terminals 92, so that the moving image storage device 100b is not extremely enlarged. . Therefore, unlike the conventional case, blinking information can be recorded and the size can be reduced.

Embodiment 3 FIG.
FIG. 4 is a diagram illustrating an application example of the moving image storage apparatus according to the third embodiment of the present invention. The moving image storage apparatus 100 (100c) according to the third embodiment is an example of acquiring and storing a video in response to a moving image storage start command and a moving image storage end command from the monitoring control system 90 (90c). The moving image storage apparatus 100c shown in FIG. 4 is different from the moving image storage apparatus 100a of the first embodiment in that it does not have the storage command generation unit 17, and the moving image storage start command from the storage start / end control unit 24 of the monitoring control system 90 (90c). And the point that it receives a video save end command.

  The monitoring control system 90 (90c) differs from the moving image storage device 90a of the first embodiment in that a storage start / end control unit 24 is provided in the monitoring control device 91 (91b). From various events (event information) recognized by the state monitoring process 2 of the monitoring control device 91 (91b), the moving image storage start command for instructing the moving image storage start timing and the moving image storage end timing are indicated. A moving image storage end command to be instructed is generated, and a moving image storage start command and a moving image storage end command are transmitted to the video information acquisition unit 10 of the moving image acquisition unit 102c.

  For example, in order to record an image of a power supply failure, video recording is automatically started at the timing when a system fault is recognized (detection of an abnormal condition), and the completion of system fault recovery is recognized (normal state) Automatically saves the video at the timing detected. Alternatively, in order to record the video during the planned work, the moving image storage is automatically started at the timing when the execution of the operation procedure slip is started, and the moving image storage is automatically ended at the timing when the execution of the operation procedure slip is ended. Information on various events recognized by the state monitoring processing unit 2 is registered in the monitoring result history information 23 by the monitoring result recording processing unit 22.

  The operation of the moving image storage device 100c will be described. A series of operations after receiving the moving image storage start command from the storage start / end control unit 24 is the same as in the first embodiment. Event management time information and event detailed information are added as supplementary information to the management information acquired by the storage unit 15 from the monitoring result history information 23 of the monitoring control device 91b and transmitted to the file management unit 16.

The moving image storage device 100c according to the third embodiment includes the monitoring control device 9 according to the moving image storage start command and the moving image storage end command generated by the storage start / end control unit 24 of the monitoring control device 91 (91b).
In addition to automatically starting and ending the saving of moving images in conjunction with various events occurring at 1 (91b), the accompanying information of the event that has become a kick can be automatically recorded. Therefore, the operator is freed from the obligation to leave evidence (operation history) when operating the monitoring control system, and can concentrate on the monitoring and control work, which is the original work, thereby obtaining an effect of improving work efficiency. Further, it is possible to accumulate the operation history of the monitoring control terminal 92 as system maintenance information.

  As described above, the moving image storage device 100 (100c) according to the third embodiment is small in size and capable of recording blinking information, and is used for monitoring data such as a state where power supply is hindered in the power system monitoring control system. The video and the video during the planned work (working in the specified procedure) can be automatically saved as a moving image, and the incidental information can be generated from the time information and the event information. As a result, there is an effect that the evidence having a large amount of information can be automatically obtained, and an effect that the operation efficiency can be improved by allowing the operator to concentrate on the work. Further, it is possible to accumulate the operation history of the monitoring control terminal 92 as system maintenance information.

Embodiment 4 FIG.
FIG. 5 is a diagram illustrating an application example of the moving image storage apparatus according to the fourth embodiment of the present invention. The moving image storage device 100 (100c) according to the fourth embodiment is an example that receives and stores a moving image storage start command and a moving image storage end command from the training simulator system 94. The moving image storage device 100c shown in FIG. 5 is the same as that of the third embodiment, but is different from the moving image storage device 100c of the third embodiment from the storage start / end control unit 24 of the training simulator system 94. It differs in that it receives a video save end command.

  The training simulator system 94 includes a training simulator (video information source device) 93 and a monitoring control terminal 92. The training simulator 93 includes a plant state management unit 50, a plant facility simulation processing unit 51, a training scenario management unit 52, a state monitoring processing unit 2, a device control processing unit 9, a monitoring result recording processing unit 22, and a monitoring It has result history information 23 and a storage start / end control unit 24. The plant facility simulation processing unit 51 simulates the states of target devices 60a to 60g (see FIG. 1) that are a plurality of monitoring targets. The training scenario management unit 52 manages the training scenario that is information such as the number of the target device 60, the occurrence of an accident, and the time, and transmits information to the plant state management unit 50 according to the corresponding training scenario when the training is started. .

  The plant state management unit 50 is substantially the same as the plant data input / output unit 1. The plant state management unit 50 receives the training scenario from the training scenario management unit 52, and receives training monitoring data indicating the states of the target devices 60a to 60g from the plant facility simulation processing unit 51 according to the training scenario. The states of the target devices 60a to 60g are used for determination of normality or abnormality, numerical calculation, or the like in the state monitoring processing unit 2. The processing result of the state monitoring processing unit 2 is sent to the display processing means 3 of the monitoring control terminal 92. Further, the processing result of the state monitoring processing unit 2 is registered in the monitoring result history information 23 by the monitoring result recording processing unit 22. In the monitoring control terminal 92, the data received from the state monitoring processing unit 2 is processed into a display image by the display processing means 3, and is displayed on the monitor devices 6a, 6b, 6c via the frame buffer 4 and the video control device 5. The A plant operator (trainer or trainee) operates the input device 7 or the input device 18 and inputs a control command or the like from the information displayed on the monitor devices 6a, 6b, and 6c. The input reception processing unit 8 processes signals from the input device 7 and the input device 18 and sends a control command to the device control processing unit 9. The device control processing unit 9 generates a control signal for the corresponding device, and sends the control signal for the corresponding device to the plant facility simulation processing unit 51 via the plant state management unit 50. Further, the control information executed by the device control processing unit 9 is transmitted to the display processing means 3, and this information is also displayed on the monitor devices 6a, 6b, 6c.

The storage start / end control unit 24 starts moving image storage from the start / end events (event information) of the training scenario managed by the training scenario management unit 52. The moving image storage end command for instructing the instruction and the moving image storage end timing is generated, and the moving image storage start command and the moving image storage end command are transmitted to the video information acquisition unit 10 of the moving image acquisition unit 102c.

  In the training simulator system 94, it is almost the case that a small number of trainers carry out training at a time with a large number of trainees as opponents, and they are displayed on the monitor devices 6a, 6b, 6c in the monitoring control terminal 92 operated by each trainee. You can save the video as a video and leave the video as evidence. By saving a moving image reflecting the results of operations performed by each trainee, it is possible to evaluate the details of the operation contents and use them for detailed guidance. Furthermore, the trainer can effectively improve the educational effect by specifically showing the trainee the operation operation that needs to be improved and the exemplary operation operation using the videos collected in the training.

  As described above, the moving image storage apparatus 100 (100c) according to the fourth embodiment is small in size and capable of recording blinking information, and automatically displays a video during training in the training simulator system 94 such as power system monitoring control. Can be saved as The effect of enhancing the educational effect can be obtained by using the obtained moving image data as a teaching material.

  In the third and fourth embodiments, the example of one monitoring control terminal 92 has been described. However, when there are a plurality of monitoring control terminals 92 as in the second embodiment, that is, each monitoring control terminal 92 is supported. The moving image acquisition unit 102 may be configured.

  DESCRIPTION OF SYMBOLS 4 ... Frame buffer, 10 ... Image | video information acquisition means, 11 ... Information distribution means, 12 ... Information receiving means, 17 ... Saving command production | generation part, 20 ... Moving image memory | storage device, 24 ... Saving start end control part, 52 ... Training scenario management 60, 60a, 60b, 60c, 60d, 60e, 60f, 60g Target device, 80 ... Communication line, 91, 91a, 91b ... Monitoring control device, 92, 92a, 92b ... Monitoring control terminal, 93 ... Training simulator, DESCRIPTION OF SYMBOLS 100 ... Movie storage apparatus, 102, 102a, 102b, 102c ... Movie acquisition part, 101 ... Movie storage part, 110 ... Movie reproduction apparatus.

Claims (8)

A video storage device that samples and stores video information displayed on a monitoring control terminal that displays blinking information that blinks the state of a target device,
Sampled from a frame buffer that stores the video information displayed on the monitoring control terminal, a moving image acquisition unit that acquires image information;
A moving image storage device comprising: a moving image storage unit that receives transmission image data based on the image information from the moving image acquisition unit through a communication line and stores moving image data of a predetermined method in a moving image storage device. The video acquisition unit
Video information acquisition means for sampling the video information from the frame buffer and acquiring the image information;
Information distribution means for generating the transmission image data based on the image information,
The moving image storage apparatus according to claim 1, wherein the moving image acquisition unit is arranged in the monitoring control terminal. The moving image storage unit includes information receiving means for receiving the transmission image data;
3. The moving image storage apparatus according to claim 2, wherein the information distribution unit and the information reception unit transmit and receive data according to an RFB protocol.   4. The moving image storage according to claim 1, wherein the moving image acquiring unit includes a plurality of moving image acquiring units, and each moving image acquiring unit samples the video information corresponding to each of the plurality of monitoring control terminals. 5. apparatus. The moving image acquisition unit has a storage command generation unit,
5. The video information is acquired based on a moving image storage start command and a moving image storage end command generated by a storage command generation unit, and the moving image data is stored. The moving image storage device described. The monitoring control terminal receives information that is the source of the video information from the video information source device,
The moving image storage unit acquires the video information based on a moving image storage start command and a moving image storage end command generated by the storage start / end control unit of the video information source device, and stores the moving image data. The moving image storage apparatus according to any one of claims 1 to 4. The video information source device is a training simulator,
The training simulator has a training scenario management unit for managing training scenarios,
The moving image storage device according to claim 6, wherein the storage start / end control unit generates the moving image storage start command and the moving image storage end command based on event information based on the training scenario. A video storage device that samples video information displayed on a monitoring control terminal that displays blinking information that blinks a state of a target device, and stores video data based on the image information;
A video playback device that plays back the video data stored in the video storage device;
The moving image storage system according to claim 1, wherein the moving image storage device is the moving image storage device according to claim 1.

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