JP5038958B2 - Data management system, data management method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily search for recorded data in a short time, and to effectively use it by simultaneously confirming and comparing the data while storing paper media without fail. <P>SOLUTION: A data construction device generates an original chart from a paper medium with temporal change of physical quantity recorded thereon. A management server generates an outline, and the original chart and the outline are stored in association with each other in a data storage device. A time line is generated, indicating a zone on a time axis wherein the record exists with respect to the physical quantity. A list of physical quantity is displayed, receiving designation of attribute information including a character string relevant to the physical quantity from a client device through a communication server. In the client device, the designation of the physical quantity in the list is received, it is handed over to the management server through the communication server, an original chart, an outline, and a time line corresponding to the handed over physical quantity is received, and they are displayed on a screen. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an image retrieval technique, and more particularly to retrieval of data recorded on a paper medium by various recorders and recorders.

  Conventionally, nuclear power plants record, store and manage a large number of physical quantity changes over time on a long recording sheet by a large number of recorders. Also, in power plants other than nuclear power plants, factories and other plants, weather stations, etc., the number of types of physical quantities to be managed is different, but it is necessary to record changes in physical quantities over time on a long recording sheet with a recorder. There is a case. And, for example, when a trouble or a specific phenomenon in the weather occurs, the data at the time of the trouble or the occurrence of the specific phenomenon is searched from a large number of recording papers, as a material for grasping and examining the facts Yes. In that case, in addition to the data of the equipment that is directly subject to trouble, etc., it is also necessary to search for data on other dates and times, equipment of similar systems, equipment of the same type, and similar plants for the purpose of comparison with the data. .

In this case, a procedure for lending the necessary paper medium to the department that requires the actual paper medium is generated from the department that manages the paper medium. In this case, there may be a plurality of departments that require the actual paper medium.
JP 2004-45336 A

  As described above, in a plant such as a nuclear power plant, it is necessary to record, store, and reliably manage a large number of enormous physical quantities as time series data. Further, since there is a limit to the length of the paper medium on which such time series data is recorded, for example, the number of paper media per year becomes enormous. Furthermore, assuming the case where operation records of a plurality of years are stored at a business establishment having a plurality of plants, the number further increases. Therefore, it takes a lot of labor to find a target paper medium from such a large number of paper media.

  In particular, when trouble occurs, quick response to the trouble is required. For this reason, it is necessary to quickly find out the data at the time of trouble of the target device and the data of the related device. Such work requires labor and time, and may hinder quick response to troubles.

  Furthermore, when the same data is required in a plurality of departments, there is a demand that each department and each person in charge want to proceed with the process in parallel. Furthermore, when the same data is required in a plurality of departments, the paper medium on which the data is recorded cannot be used simultaneously. Moreover, there was a risk that the only paper media could be lost, soiled or lost by lending it to a department that did not manage the paper media.

  The present invention has been created in view of the above problems. That is, the object of the present invention is to securely store paper media and to search for data recorded on those paper media in a simple and short time, and to check and compare the data, and also to effectively utilize them simultaneously. Is to provide technology.

The present invention employs the following means in order to solve the above problems. That is, the present invention relates to a data construction device that digitizes paper media, a data storage device that stores the constructed digitized data, a management server that manages the digitized data, and a management server and data storage via a network. Illustrated by a data management system comprising a communication server allowing access to the device and one or more client devices connected to the communication server via a network.

  Among these, the data construction device includes original chart generation means for acquiring image data from a paper medium on which a physical change in time is recorded and generating an original chart in which an image of the physical change in time is incorporated.

  The management server also includes an outline generation unit that generates an outline by reducing the number of pixels of the original chart in the time axis direction, a unit that stores the original chart and the outline in association with each other, and a record about the physical quantity A timeline generating means for generating a timeline indicating a section on the time axis in which the data exists, and a client device by receiving designation of attribute information including a character string related to the physical quantity from the client device through the communication server and searching for the corresponding physical quantity Data search means for displaying a list on the screen.

  In addition, the client device receives the designation of the physical quantity in the list, delivers it to the management server through the communication server, receives the original chart, outline and timeline corresponding to the delivered physical quantity, and displays image display means for displaying on the screen Prepare.

  Therefore, when this data management system receives designation of attribute information including a character string related to a physical quantity, the data management system displays a list of the corresponding physical quantities. Furthermore, by receiving designation of the physical quantity in the list, it is possible to provide a function for displaying on the screen the original chart, outline and timeline corresponding to the physical quantity originally recorded on the paper medium.

  The original chart generating means receives information related to the base point of the observation period, adds time information to the original chart, receives information related to the base point of the observation value, adds waveform values to the original chart, and physical quantity attribute information Means for storing in association with the original chart. Therefore, the present data management system can add and store time information and waveform values on the original chart.

  Further, the timeline generating means includes means for accepting input of a physical quantity identification number, a recording paper identification number, and a recording period, and a recording period corresponding to the recording paper recorded by the data storage means for the physical quantity identification number. Means for searching and identifying a timeline so as to identify a recording execution time when a recording exists and a recording non-execution time when no recording exists in a period from the start of recording of the physical quantity to the latest recording And comprising. Therefore, the data management system can display, together with the original chart and outline, a recording execution time when the recording exists and a recording non-execution time when the recording does not exist.

  Here, the image display means displays means for displaying the first original chart, outline and timeline for the first physical quantity, means for accepting designation of the second physical quantity, and second means corresponding to the second physical quantity. The original chart may be provided with means for displaying the first original chart in parallel with the time axis. Therefore, the present data management system can display the time changes of the two physical quantities in contrast.

Further, the image display means corresponds to the means for receiving designation of the first reference time point and the second reference time point for displaying one physical quantity, and using the first reference time point as a time axis reference point. A first original chart, means for displaying an outline and a timeline, and a second original chart corresponding to the one physical quantity with a second reference time point as a reference point on the time axis, Means for displaying the time axes in parallel. Therefore, the present data management system can display the time changes at different points in time for one physical quantity.

  Further, the image display means is configured so that the time width per unit pixel in the time axis direction in the first original chart does not match the time width per unit pixel in the time axis direction in the second original chart. There may be provided means for matching the position of the pixel in the time axis direction of the original chart and the position of the pixel in the time axis direction of the second original chart within the range of the time axis to be displayed. Therefore, this data management system can display, compare and contrast the time axes of a plurality of original charts whose time widths per unit pixel in the time axis direction do not match.

  The image display means may include means for moving and displaying the first original chart and the second original chart in synchronization with the time axis direction. That is, in this data management system, when a plurality of original charts are displayed and moved and displayed in the time axis direction, the positions of the time axes can be moved and displayed in synchronization with each other.

  The image display means includes a means for displaying a time axis when the physical quantity is recorded in the original chart together with the original chart, a means for detecting an operation for enlarging or reducing the original chart, and an operation for enlarging the original chart. Means for determining whether the time axis can be displayed in the same screen area as the original chart when the image is displayed according to the above, and when the time axis cannot be displayed in the same screen area as the original chart, In addition, a means for dividing and displaying an enlarged original chart and an area for displaying the time axis may be provided. Therefore, in this data management system, even when the original chart is enlarged, the time axis can be displayed reliably.

  The image display means includes means for accepting designation of a position on the original chart, means for extracting an image portion indicating a physical quantity at a point on the time axis corresponding to the designated position, and time from the image portion. You may make it provide the means to determine the value of the physical quantity in the point on an axis | shaft, and the means to display the value of a physical quantity in the vicinity of an original chart. Therefore, in this data management system, when it is desired to confirm the value of the physical quantity in the chart image, the value can be confirmed in the vicinity of the waveform in the chart image without being restricted by the coordinate axis of the physical quantity.

  The outline generation means classifies the pixels in the original chart into pixels of a predetermined target color and pixels of a color other than the target color, extracts a single color image composed of pixels of the target color, Means for generating an outline by reducing the number of pixels of the monochrome image extracted in the direction of the time axis. That is, in this data management system, it is possible to separate colors from a chart image and generate an outline for each color.

  In addition, the image display means includes means for displaying the corresponding position of the recording of the time change of the physical quantity displayed in the original chart by at least one of the partial section of the time axis in the outline and the partial section in the timeline. It may be. That is, according to the present data management system, it is displayed which partial section of the time axis in the outline corresponds to which partial section in the timeline corresponds to the original chart being displayed.

The image display means includes means for accepting an input operation for outline or timeline display, means for determining a position on the time axis to be displayed based on the input operation, and a position on the determined time axis. Means for displaying the corresponding outline and means for displaying the original chart corresponding to the determined position on the time axis may be provided. That is, in this data management system, an original chart at a desired position on the time axis can be displayed by performing an input operation on an outline or a timeline.

  Further, the original chart generating means includes means for dividing the image data into a plurality of positions on the time axis when the data amount of the image data acquired from the paper medium is larger than a predetermined reference value, And means for generating an original chart in which images divided by information defining connection relation of image data are combined. Therefore, in this data management system, while dividing the image data into a plurality of positions on the time axis, an original chart that combines the divided images can be generated.

  Further, the original chart generation means receives, as information about the base point of the observation period, a means for receiving the time of an arbitrary base point in the original chart and the transport speed of the paper medium at the time of recording, and the original chart from the received reference time point and transport speed The means for determining the time per unit length above, the means for accepting values at any two base points in the original chart as information on the base point of the observed value, and the values in the original chart from the values of the two base points received Means for determining a value per unit length. In this way, in the data management system, the time per unit length in the time axis direction and the value per unit length in the axis direction of the physical quantity can be set for the original chart.

  The image display means searches for whether or not a copy of the original chart, outline and timeline specified from the client device is stored in the client device, and when the copy is stored in the client device. A means for displaying the copy on the screen of the client device, and if the copy is not stored in the client device, the original chart, outline and timeline are called from the data storage means and displayed on the screen of the client device. The original chart, the outline, and the timeline may be temporarily stored in the client device. Therefore, in this data management system, when the copy is stored in the client device, the original chart, outline, and timeline can be displayed in a shorter time than when the copy is not stored.

  The present invention may be a method in which a computer executes the above processing. The present invention may also be a program that causes a computer to execute the above processing. Further, a computer-readable recording medium in which such a program is recorded may be used. The present invention may be an information system including the image management device and an image display device.

  According to the present invention, it is possible to find out data recorded on a paper medium easily and in a short time, and to confirm and compare the data, and to effectively use the data simultaneously and in parallel while securely maintaining the paper medium.

  Hereinafter, an information system according to the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings. The configuration of the following embodiment is an exemplification, and the present invention is not limited to the configuration of the embodiment.

<Overview>
This information system provides a function of reading data recorded on recording paper by various recorders (also called recorders) with a scanner, creating electronic data, storing it in a database, and managing it. Even if electronic data is created, the data itself recorded on the recording paper needs to be stored to prevent falsification. However, since electronic data is created, it is not necessary to deliver a recording paper, which is a paper medium on which the data is recorded, to a user who needs the data. Therefore, the management burden of the original paper medium is reduced. In addition, it is possible to reduce the risk of loss, fouling, and loss of the original paper medium. Furthermore, compared with the case of a paper medium, the work burden of the user who analyzes the data of a recording machine can be reduced significantly. Hereinafter, electronic data obtained by reading a recording result (a graph in which time-series data is drawn) drawn by a recorder with a scanner is referred to as a chart image (corresponding to the original chart of the present invention).

  FIG. 1 is a system configuration diagram of an information system (corresponding to a data management system of the present invention) according to the present embodiment. This information system includes a server group that provides information to a user's client PC (personal computer, corresponding to the client device of the present invention) 100-1, 100-2, 100-3, etc. via a network 99, a data construction system (this book) Equivalent to the data construction device of the invention).

  The server group includes web servers 101-1, 101-2, 101-3, etc. (corresponding to the communication server of the present invention), management servers 1-1, 1-2, etc., and database servers 103-1, 103-2. And a database (corresponding to the data storage device of the present invention) composed of the storages 104-1 and 104-2 managed by the database servers 103-1, 103-2 and the like. Hereinafter, these components are collectively referred to as a client PC 100, a web server 101, a management server 1, a database server 103, and a storage 104.

  The client PC 100 is a normal personal computer, a portable information terminal, or the like. The user operates the client PC 100 to access the information system and use the image data read from the recording paper. The client PC 100 includes a CPU, a memory, a hard disk, a communication interface, and the like, and executes a normal browsing program (called a browser).

  The network 99 is the Internet, an intranet, a LAN (Local Area Network), or the like.

The web server 101 communicates with the client PC 100 by, for example, a procedure called Java (registered trademark) RMI (Remote Method Invocation). The RMI is a communication means for calling a method of an object on another computer. However, instead of such a procedure, the web server 101 may perform communication with the client PC 100 using HTTP (HyperText Transfer Protocol). Further, communication may be executed by RPC (Remote Procedure Call) in a general procedural language. However, in this embodiment, the processing of the web server 101 will be described as an example.

  The web server 101 receives a request from the client PC 100 and provides various screens, charts, data, and the like to the worker. In FIG. 1, load distribution is performed among a plurality of web servers 101 by a load balancer (not shown). However, it is not always necessary to execute load distribution, and the web server 101 may be configured as a single unit.

  The management server 1 receives a request from the client PC 100 through the web server 101 and provides a service corresponding to the request. For example, the management server 1 reads the data of the electronic recorder and provides it to the client PC 100 through the web server 101. The management server 1 is connected to a data construction system. The management server 1 receives electronic data newly generated by the data construction system and stores it in the database.

The electronic data includes an original chart image (corresponding to the original chart of the present invention) and outline data (corresponding to the outline of the present invention). The original chart image is image data read by a scanner, and the resolution of the image is determined by a set value at the time of scanner reading. On the other hand, outline data is image data created by reducing pixels in the time axis direction from the original chart image. By reducing the pixels in the time axis direction, data trends (also referred to as trends) over a longer period than the original can be displayed on the same screen as the original. By such display, the user can grasp the tendency of data over a long period while referring to the original image. However, an original chart image created from one recording sheet may be divided into a plurality of files by a scanner process or an information system process. On the other hand, outline data is created in one file for one recording sheet.

  The database server 103 stores the data delivered from the management server 1 in the storage 104 and provides a data management function. That is, the database server 103 stores various image files, management information for managing the image files, and the like in the storage 104 in accordance with instructions from the management server 1. The storage 104 is, for example, a hard disk drive.

  The database server 103 and the storage 104 are duplicated. For example, the database server 103-1 is the active system, and the database server 103-2 is the standby system. In this case, the database server 103-2 manages data in the storage 104-2 that is a replica of the storage 104-1.

  FIG. 2 shows a functional configuration of the information system. As shown in FIG. 2, the client PC 100 functions as a web reference client. The client PC 100 executes functions such as chart image reference, chart attribute information reference, chart image printing, chart image storage, and position search in the chart.

  The web server 101 provides the chart image to the client PC 100. The web server 101 provides creation of a web reference client screen, data transmission / reception between the client PC 100 functioning as a web reference client and the management server 1, a linkage function with a security server (not shown), and the like.

  The management server 1 basically instructs the database server 103 to store the chart image in the storage 104. In addition, the management server 1 executes processing for providing the chart image to the client PC 100. In addition to the chart image, the management server 1 manages various pieces of information about the plant. This information is called plant equipment data. The plant equipment data includes, for example, equipment attributes, recorder attributes, and the like. Therefore, the management server 1 includes the chart image, the attribute of the recorder that recorded the chart image, the attribute of the facility, the attribute of the chart image, and other information related to the chart image (hereinafter referred to as attribute information, data attribute, In combination with the characteristics of the recorder or information relating to the characteristics of the chart image), the information is provided to the client PC 100. That is, the management server 1 executes processing such as search for attribute information, update of attribute information, update of image data, update of outline data, and the like. Further, when the client PC 100 requests a related image by a character string included in the attribute information, the management server 1 searches for the corresponding image based on the attribute information or the recording period of the time series data. To the client PC 100.

Furthermore, a data construction system is linked to the management server 1. The data construction system performs processing such as digitization of chart paper (also called recording paper), input and construction of various attribute data, construction / maintenance of electronic data, and output of various data to external media. Once output to an external medium, various data can be referred to by a personal computer or the like. In this case, since the personal computer can refer to and use the electronic data without accessing the information system, it is called a stand-alone viewer. In the stand-alone viewer, search of the chart image in the media, image reference, image printing, image storage, chart attribute search, and the like are executed.

FIG. 3 shows a hardware configuration of the management server 1. The management server 1 includes a CPU (Central Processing Unit) 11 that executes a program, a program that is executed by the CPU 11,
Or it has the memory 12 which memorize | stores the data which CPU11 processes, and the various peripheral devices connected to a bus | bath. The various peripheral devices include an HDD (Hard Disk Drive Device) 14 connected via the interface 13, a display device 16 connected to the interface 15, an operating device 18 connected to the interface 17, and a communication interface connected to the interface 19. 20, a removable storage medium driving device 22 connected to the interface 21.

  The interface 13 is a serial or parallel interface. The HDD 14 connected to the interface 13 drives a hard disk and stores programs that are executable in the memory 12 or various data processed by the CPU 11.

  The interface 15 is, for example, an RGB analog interface. However, a digital interface such as DVI (Digital Visual Interface) may be used. The display device 16 connected to the interface 15 is, for example, a liquid crystal display, a plasma panel, an EL (electroluminescence) panel, or the like.

  The interface 17 is preferably a serial interface such as USB (Universal Serial Bus). The operation device 18 connected to the interface 17 is, for example, a keyboard and a pointing device. The pointing device includes a mouse, a detection device that detects a finger operation with a capacitance, and moves a cursor on the screen of the display device 16, a touch panel, and the like. In the following description, a mouse is basically assumed as the pointing device.

  The interfaces 19 and 21 are serial or parallel interfaces. The communication interface 20 connected to the interface 19 is, for example, a LAN card. The removable storage medium drive device 22 connected to the interface 21 includes a drive device such as a CD (Compact Disc), a DVD (Digital Versatile Disk), and a flash memory card, a read device, a write device, or their input. An output device is included. In FIG. 3, a plurality of interfaces are clearly shown, but any one of the interfaces 13, 17, 19, and 21 may be the same interface. Furthermore, the functional configuration of the hardware of the web server 101, the database server 103, the personal computer of the data construction system, or the client PC 100 is the same as that of the management server 1 in FIG.

  The client PC 100, the web server 101, the management server 1, the database server 103, and the personal computer of the data construction system (hereinafter also collectively referred to as a computer) according to the present embodiment are expanded in a format that can be executed in respective memories. Each function is realized by a computer program executed by each CPU. Such a computer program is installed in each computer from, for example, a removable medium drive device that can be attached to and removed from each computer, or a communication interface that communicates with other computers via a network.

<Composition of chart image>
FIG. 4 shows an outline of processing when creating a chart image. The scanner of the data construction system reads the data recorded by the recording machine from the recording paper whose recording direction is extremely long with respect to the width direction. Such a long recording sheet is called a long recording sheet. A personal computer is connected to the scanner.

  The scanner receives the designation of the resolution from the personal computer, reads an image from the recording paper according to the resolution, and generates image data. The image data is divided by the data amount set in the scanner and transferred to the personal computer.

  6 is received, the time per pixel is calculated from the recording speed, and the time is assigned to each pixel from the date and time. The CPU of the personal computer that executes this processing corresponds to means for adding time information to the original chart of the present invention.

  On the other hand, the personal computer has an upper limit of the amount of image data. The personal computer receives the image data generated by the scanner and determines whether the data amount of one image data exceeds the upper limit value. When the data amount of the image data exceeds the upper limit value, the image data is divided into a plurality. This upper limit value is set so that the response time when searching and displaying the chart image in the information system becomes the target value. This is because if one image data is too large to match the processing capacity of the server and computer constituting the information system, there is a problem that the response time to the user operation becomes long.

Note that the personal computer may set the relationship between the dot size in the scanning direction and the time resolution of the data recorded by the recording machine in accordance with the reading resolution of the scanner, and execute image division. For example, the scanner is provided with a line image detector such as a CCD (Charge Coupled Device), and delivers image data to the personal computer line by line in the scanning direction. The personal computer may accumulate the time for each line, and generate and output an image file when the scanned recording time reaches a predetermined section size. Accordingly, each image file is associated with a recording period start point T0, T1, T2, and the like, and is recorded in a table for managing chart images.

  The chart image divided at the bottom of FIG. 4 and the joint portion of the chart image are shown enlarged. In the enlarged portion, the pixel columns from the (N−2) th column to the (N + 2) th column are clearly shown. Here, the column of pixels refers to a column of pixels arranged in a direction orthogonal to the X axis (time axis). Assuming that one of the divided chart images ends in the Nth column, the next chart image of the chart image starts from the (N + 1) th column. Therefore, there is a deviation corresponding to one pixel between the end time (position on the time axis) of each divided chart image and the start time of the chart image continued to the chart image. Conversely, within the allowable error range for one pixel, it can be said that the end time of each chart image and the start time of the chart image continuing to that chart image coincide with each other.

FIG. 5 illustrates a setting screen (period setting means) for setting a reference point on the time axis. When the user selects a reference point setting menu or icon on the personal computer, guidance as shown in FIG. 5 is displayed to prompt selection of a measurement start position on the chart image. However, the guidance in FIG. 5 may be displayed immediately after the chart image generated from the recording paper is transferred from the scanner to the personal computer. At this time, the vicinity of the start position of the chart image is displayed on the screen as an initial display. When the user operates a pointing device such as a mouse, a vertical line L100 is displayed on the screen following the operation. When the user clicks the position that becomes the reference point with the pointing device, the personal computer captures the position of the vertical line L100 on the screen. Further, when the user clicks OK on the guidance screen, the screen of FIG. 6 is displayed.

  FIG. 6 is an example of an input screen for time corresponding to the position of the vertical line L100 described above (corresponding to means for receiving the time of an arbitrary base point in the original chart of the present invention and the conveyance speed of the paper medium at the time of recording). . On this screen, the user sets the date and time at the position of this L100, and the recording speed of the recorder that recorded the data on the recording paper.

  In this way, the time base point information (the position of the reference point of time on the original chart, for example, T0 in FIG. 4) and the recording time corresponding to the position are set. Further, based on the recording speed (for example, millimeter / second) set on the screen of FIG. 6 and the resolution in the recording direction of the scanner (for example, dot / inch), the unit length (for example, pixel) on the recording paper Recording time is determined. Then, the time of any pixel position (for example, T1, T2, TE, etc. in FIG. 4) behind the position specified by the time base point information (the recording progress direction on the recording paper, the scanning direction of the scanner) can be calculated. . The CPU of the personal computer that executes this processing corresponds to means for determining the time per unit length on the original chart of the present invention.

  Since the recording period is determined in this way, the recording period of each divided chart image can also be determined. In the example of FIG. 4, the reference point T0 is the starting point of the recording period of the recording paper and the starting point (recording start time) of the recording period of the first divided image. T1 is the start point (recording start time) of the recording period of the second divided image, and coincides with the recording end time of the first divided image. The same applies to T2 and thereafter.

  FIG. 7 shows an example of an input screen of value base point information for specifying the waveform value of the chart image (corresponding to means for adding waveform values of the present invention and means for receiving values at two arbitrary base points in the original chart). Indicates. This input screen is set for each type of pen for each chart image. The pen type is referred to from the plant facility data in FIG. 2 based on the attribute information (for example, information on the recorder) of the chart image. Further, the attribute of the waveform value (for example, selection of unit, logarithmic or linear) shown on the value base point information input screen of FIG. 7 is also referred to from the plant facility data.

  When the user operates a pointing device such as a mouse on the screen on which the chart image is displayed, a horizontal line L101 is displayed on the screen following the mouse. When the user clicks the position that becomes the reference point with the pointing device, the personal computer captures the position of the horizontal line L101 on the screen. The Y coordinate of this position is displayed as base point (1) value: XXX. Furthermore, when the user inputs a waveform value corresponding to the position on the “value input” screen and clicks OK, the value of the waveform at the position corresponding to the Y coordinate is set. The same applies to the base point (2). As described above, value base point information serving as a reference for determining the waveform value of the chart image is input. The CPU of the personal computer that executes this process corresponds to means for receiving values at any two base points in the original chart. The personal computer calculates the waveform value per unit length in the Y-axis direction from the Y coordinate (for example, each pixel value) of the base point (1) and the base point (2) and the value input on the “value input” screen. Is calculated. The CPU of the personal computer that executes this processing corresponds to means for determining a value per unit length in the original chart.

  Thus, since the value base point information for specifying the waveform value is input at two points in the Y-axis direction, the management server 1 charts the data value per pixel in the Y-axis direction via the personal computer. Each image (recording paper) can be stored and managed. This information is referred to in the waveform attribute display process (FIGS. 22 and 34).

  Here, it is assumed that the division processing of the chart image shown in FIG. 4, the input of the reference point on the time axis, and the input of the value reference point information used as the reference of the waveform value are executed by the data construction system. However, this processing is not limited to the data construction system. For example, the management server 1 receives the image data from the scanner as it is, and the management server 1 divides the chart image, inputs the reference point on the time axis, and inputs the value reference point information that becomes the reference of the waveform value. May be executed. Further, the client PC 100, the web server 100, and the management server 1 may cooperate to execute the above processing.

<Outline data>
The information system separately creates outline data in addition to the chart image (original) generated by the scanner, and provides it to the client PC 100. Outline data is used to grasp the trend of data over a longer period than the original. As such outline data, after extracting the waveform based on the raster outline in which the pixels in the time axis direction of the chart image are reduced and the color of the pen on which the waveform is drawn on the chart image, the time axis Use a vector outline with fewer pixels in the direction. Which outline is used may be determined, for example, according to the user's selection.

  In order to generate a raster outline, for example, a process of taking out a column of pixels every predetermined pixel column in the time axis direction may be executed. Further, instead of simply thinning out, for example, a process of averaging a predetermined number of pixels in the time axis direction may be executed. And you may perform the process which allocates the average value to the pixel taken out for every predetermined pixel in the time-axis direction.

  FIG. 8 shows an example of creating a vector outline. The vector outline is obtained by extracting images as bit data separately for each specific color, for example, red, green, blue, yellow, brown, etc., from the image generated by the scanner. Then, the bit in which the image data exists is set to 1, the bit 0 in which the image does not exist is set, and the process of connecting the bit 1 portions is executed to express the continuous recording of the pen type recorder. Data constituted by such a connection of bits 1 is called a vector outline.

  Therefore, there is a width in the recorded image (the trajectory of the data recorded with the pen) at a specific time (X axis: for example, t1 to t5), and the trajectory may be divided into a plurality of parts (in FIG. 8). see t4 and t5).

  An image is expressed by such a bit pattern, and then the bit pattern is projected onto the outline data display area. At this time, if the display destination of the vector outline is smaller than the bit pattern area of the vector outline, the number of pixels is reduced in the X-axis direction and the Y-axis direction according to the respective ratios. .

<Example of data structure>
9 to 12 show examples of data structures of various tables stored in the database server 103 and processed by the management server 1. Note that the following table does not necessarily have to be stored in the database server 103, but may have a system configuration in which it is stored in the hard disk of the management server 1. In addition, at least a part of the data in the table described below is delivered to the client PC 100. Information stored in the tables of FIGS. 9 to 12 corresponds to attribute information of the present invention. Further, the database server 103 storing the respective tables, the hard disk of the management server 1, the memory 12 or the like corresponds to means for storing the attribute information of the present invention in association with the original chart.

FIG. 9 is an example of data in the recorder table. The recorder table holds attributes of various recorders and measuring machines. In FIG. 9, one row of the recorder management table is one record, and holds the attribute value of one recorder. Each record of the recorder management table has fields (also referred to as elements) of ID, name, installation location, recording paper type, and remarks.

  The ID is a record of the recorder management table, that is, identification information for uniquely identifying each recorder. The name is the name of data (chart) recorded on the recording paper by the recording machine. The recorder usually has a plurality of pens and records a plurality of waveforms on a recording sheet. In this way, data on recording paper composed of a plurality of waveforms is called a chart. For example, the pressure in the A pressure chamber, the pressure in the A pressure chamber, the B building exhaust gas concentration, the B building exhaust gas temperature, and the like. The installation location is the location where the recorder is installed. The recording paper type is the recording paper model number. Remarks is a comment field for recording information related to the recorder.

  FIG. 10 is a data example of the recording pen table. The recording pen table holds the pen attributes of the recording machine illustrated in FIG. Also in FIG. 10, one line of the recording pen table is one record, and holds the attribute value of one recording pen. Each record of the recording pen table has fields of ID, recording machine ID, pen color, recording content, unit, and recording range.

  The ID is a record of the recording pen table, that is, identification information for uniquely identifying each pen. The recorder ID is an ID for identifying a record in the recorder management table shown in FIG. The pen color indicates the color of the pen. For example, red, green, blue, yellow, brown, etc. The recorded content includes detailed information about data recorded by the recording pen. For example, when the recording machine ID is 1, the temperature corresponds to the temperature of the A pressure hook, and when the recording pen ID is 1, the temperature is 30 cm from the top. When the recording pen ID is 2, the temperature is 50 cm from the top in the same pressure cooker. When the recording pen ID is 3, the temperature is 100 cm from the top in the same pressure cooker. Thus, in the same recorder, a plurality of measurement data is recorded by each recording pen.

  The unit is a unit of data recorded by the recording pen. The unit is, for example, a waveform value per unit length in a direction perpendicular to the time axis of the recording paper. For example, when the recording pen ID is 1, the temperature is in Celsius, and when the recording pen ID is 4, it is Pascal (Pa).

  The recording range indicates the lowest value (lower limit) and the highest value (upper limit) to be recorded. That is, the recording range is a value of data recorded by each pen at the recording limit position of the recording paper. For example, when the recording pen ID is 1, the lower limit is minus 30 degrees Celsius and the upper limit is 300 degrees Celsius.

  FIG. 11A is a data example of the recording paper table. The recording paper table holds information such as the recording date of the recording paper on which data is recorded by the recording machine illustrated in FIG. Also in FIG. 11A, one line of the recording paper table is one record, and holds information for each recording paper on which data is recorded. Each record of the recording paper table has fields of ID, recording machine ID, person in charge, remarks, and recording date.

  The ID is identification information that uniquely identifies a record in the recording paper table. The recorder ID is an ID for identifying a record in the recorder management table shown in FIG. The person in charge is a person in charge of managing the recording machine when the recording paper is recorded. Remarks is a comment field for recording information related to data on the recording paper. The recording date is divided into two fields of start and end, and a recording start date and a recording end date are recorded, respectively.

FIG. 11B is another example of data in the recording paper table. In this example, “outline data file name” is added to the recording paper table as compared to the example of FIG. 11A. In this information system, outline data is created for each recording sheet. Therefore, managing outline data files in the recording sheet table is convenient for processing of the computer.

  When creating a vector outline to be described later, a vector outline file is created for each pen color of the recorder. In this case, a process for combining a plurality of vector outline files into one, for example, data compression, may be executed to create a file combined into one. In the “outline data file name” field of FIG. 11B, a single file name may be set. Further, instead of compressing and collecting data, a folder on the hard disk for storing a plurality of files may be prepared, and the folder name may be registered in the “outline data file name” field of FIG. 11B. Further, a table for associating the pen color with the file name of the outline data may be prepared separately. Further, as shown in FIG. 11B, instead of providing one field, a plurality of fields for storing the file name of outline data for each pen color may be provided in the recording paper table.

  FIG. 12 is an example of data in the recording file table. The recording file table holds information for managing the chart image read from the recording paper by the scanner. Also in FIG. 12, one line of the recording file table is one record and holds information for each recording file. Each record of the recording file table has fields of ID, recording machine ID, recording paper ID, recording period, file name, and size.

  The ID is identification information that uniquely identifies a record in the recording file table. As described in FIG. 4, the information system divides the chart image into a plurality of pieces and stores them in a file. The recording file table has one record (corresponding to information defining the connection relationship of each image data of the present invention) for each divided chart image.

  The recorder ID is an ID for identifying a record in the recorder management table shown in FIG. The recording sheet ID is an ID for identifying a record in the recording sheet table shown in FIG. That is, the recording machine and the recording paper that are the basis of the chart image are specified by the recording machine ID and the recording paper ID.

  The recording period is divided into two columns of start and end, and the recording start date and time and the recording end date and time are recorded, respectively. This recording period is a recording period of the divided chart image. For example, the record whose ID is 1 starts at 15:40 on January 15, 2000 and ends at 12:10 on January 16, 2000. It can be seen that the record with ID 2 starts at 12:10 on January 16, the same year, and the chart images of the recording paper with recording paper ID 5 are continuous. The date and time shown in these “start” fields correspond to the limitations T0, T1, T2, etc. of each chart image in FIG.

  The file name is the file name of the chart image corresponding to the record in the recording file table. The size is divided into two columns, X and Y. The size indicates the dimension (number of pixels) of the divided chart image.

Of the records in the recording file table, the date and time of the actual waveform data start position is set in the “start” field of the record period of the record corresponding to the first chart image in the divided chart image. In addition, the date and time of the end position of the actual waveform data is set in the “end” field of the record period of the record corresponding to the last chart image in the divided chart images among the records in the recording file table. . This is because, as will be described later with reference to FIGS. 15 to 18, there are portions where the waveform data does not exist even if the image is read by the scanner, at the head portion and the end portion of the recording paper. The record corresponding to the first chart image in the divided chart image and the record corresponding to the last chart image are, for example, the record of the record file table in the “start” field of the record sheet ID and the record period. It can be obtained by sorting.

  The position at which the waveform data at the beginning of the recording paper in the chart image starts is determined by, for example, determining the color difference from the background image in the image, or managing the personal computer of the data construction system The server 1 can recognize it. That is, first, the pen color for each recorder can be specified from the recording pen table of FIG. Then, in the chart image, a portion where a connection of pixels corresponding to the pen color of a predetermined length or more in the recording direction (scanning direction of the scanner) exists is extracted. Then, it is only necessary to determine the position of the end in the leading direction of the recording paper among the connection of the pixels.

  Similarly, in the chart image, the position at which the waveform data at the end of the recording paper ends is determined by the personal computer of the data construction system or the management server 1 by determining the color difference from the background image. Is recognizable. However, the position at which the waveform data starts and the position at which it ends may be set manually by selecting the position on the chart image.

<Screen specifications>
With reference to FIGS. 13 to 25, specifications of screens provided by the information system to the client PC 100 will be described. These screens are provided to the client PC 100 through the web server 101. In response to a request from the client PC 100, the web server 101 accesses the management server 1 and acquires data necessary for screen configuration. The management server 1 searches the data of the database server 103 in response to a request from the web server 101 and provides the retrieved data to the web server 101.

  FIG. 13 shows an example of an operation on the chart search screen W1. The chart search screen W1 includes input fields such as a plant name selection field, a management number input field, an instrument number input field, a name input field, a recording period input field, and a panel number input field.

  The plant name is character string information for identifying a plant. For example, in a nuclear power plant, a thermal power plant, etc., a plurality of plants (a generator and its energy generator, for example, a nuclear reactor) are often provided in one power plant. Even in factories, it may be desirable to identify a plurality of plants (for example, buildings of different generations including a plurality of facilities of different generations, a plurality of chemical plants that produce different types of materials, etc.). Therefore, this information system makes it possible to identify the plant by the plant name.

  The management number is a number that identifies equipment in the plant or data measured from the equipment. The instrument number is a number that identifies the recorder that measured the data. The name is a name corresponding to the name of the recorder table in FIG. However, the name does not need to be a complete match, and may be searched with a partial match. The recording period is a recording period of data to be searched.

In the example of FIG. 13, “A1000-1 kettle temperature”, “A1000-2 flow rate”, and the like are displayed as search results (corresponding to the list of the present invention). An icon 50 simulating a chart is displayed at the top of each search result. When the user operates the pointing device on the display screen of the client PC 100 and positions the cursor on the icon 50, a guide “Display chart viewer” is displayed. Further, when the user clicks on the icon, the corresponding chart image is displayed. The CPU of the management server 1 that displays the chart search screen W1 on the client PC 100 through the web server 101 corresponds to the data search means of the present invention.

  FIG. 14 shows an example of a screen that displays a chart image. The display device of the client PC 100 that displays the screen of FIG. 14 corresponds to the image display means of the present invention. Hereinafter, this screen is referred to as a chart image window W2. At the top of the chart image window W2, a toolbar is provided and various buttons are arranged. The user operates various buttons on the toolbar and transmits a request from the client PC 100 to the web server 101. As buttons on the toolbar, for example, buttons for executing functions such as chart enlargement, reduction, automatic scrolling, automatic scrolling, and waveform value display are provided.

  A history display portion W21 is provided on the left side of the chart image window W2, and a list of chart images displayed up to the present time is displayed after the session starts. Session start refers to the start of connection when the client PC 100 connects to the web server 101. However, instead of such processing, a history of a predetermined period, for example, the past 30 days, the past one week, etc. may be stored and displayed on the history display unit W21. The history display unit W21 displays a management number (A1000-1), a name (turbine kettle temperature, flow rate), and the like.

  From the center to the right side of the chart image window W2, an original display portion W22 is displayed. On the original display portion W22, the chart image read by the scanner is displayed as it is. In the original display unit W22, a user operation is detected, and the enlargement, reduction, and scrolling processing of the chart image is executed. Further, as optional functions, attribute information added to the chart image, for example, information related to the recorder, comments in the remarks column, and the like are displayed.

  An outline display unit W23 and a recording period display unit W33 are provided in a region below the history display unit 21 and the original display unit 22. An outline of the waveform is displayed on the outline display portion W23. Outline data obtained by compressing the time of the chart image is displayed in the outline of the waveform. The length of the waveform drawn on the recording paper in the X-axis (time axis) direction is much larger than the screen of the client PC 100 and may range from several meters to several tens of meters. The size of the original chart image generated from such recording paper is long in the X-axis direction. Therefore, the outline data is used to compress the time axis direction and display a long-term waveform trend. Provides a function to grasp the general trend of the recorded value by the outline of the waveform. The user can change the display range of the chart image in the original display portion W22 by clicking or dragging the outline of the waveform. In addition, the outline of the waveform can be hidden by user designation. That is, the web server 101 receives a request from the client PC 100 (browsing program) that has detected a user operation on the outline of the waveform, and delivers a chart image corresponding to the operated position to the client PC 100. When the operation for the outline of the waveform is transferred to a plurality of chart image files, the web server 101 searches the management server 1 for the corresponding chart image file and transfers it to the client PC 100.

  The recording period is displayed on the recording period display section W33. This display corresponds to the timeline of the present invention. The recording period is indicated by a bar-shaped pattern P1 (referred to as a time slider) during which data recorded on the recording paper exists. In this information system, one recording period is usually recorded on a plurality of recording sheets. Of the bar-shaped pattern P1, there is a portion (see FIG. 17) that is partially displayed as a thin pattern, and this portion is a portion where data does not exist at the joint between the recording paper and the recording paper (recording non-execution time of the present invention). Equivalent). On the other hand, the period in which the recording exists, which is indicated by a pattern other than the recording non-execution period in the rod-shaped pattern P1, corresponds to the recording execution time of the present invention.

Further, a portion without the bar-shaped pattern P1 indicates that there is no recording for reasons such as maintenance of the recording machine. A rectangular pattern P2 superimposed on the rod-shaped pattern P1 indicates a period currently displayed on the original display portion W22. The recording period corresponds to the operating period of the recorder. Information on this operation period can be acquired from the plant equipment data.

  That is, based on the operation period information, a period period in which data exemplified by the rod-shaped pattern P1 exists is indicated. Further, the portion of the bar-shaped pattern P1 where no data exists at the joint between the recording paper and the recording paper is indicated by a partially thin pattern display based on the recording period of the recording file table 12. As described above, the position of the end of the waveform data in the chart image is determined by extracting the connection of pixels corresponding to the pen color. Further, the time in the chart image is determined by the time base point information (base point time and recording speed of the recorder) shown in FIG.

  When creating a display pattern of the recording period, if the deviation between the operation period information and the recording period of the recording file table 12 exceeds a predetermined limit, the management server 1 displays a predetermined warning message.

  As an actual process, a rod-shaped pattern P1 is created based on the recording period in FIG. 12, and the information on the operation period acquired from the plant equipment data may be used for checking the recording period in FIG. Good.

  The rectangular pattern P2 of the time slider can be moved on the screen by operating the pointing device. The CPU of the client PC 100 detects a user's operation on the pointing device or the keyboard, and moves the rectangular pattern P2 on the time slider. The CPU of the client PC 100 that executes this processing corresponds to means for receiving an input operation for the outline or timeline display of the present invention.

  When the rectangular pattern P2 on the time slider moves, the CPU of the client PC 100 causes the recording period corresponding to the position after the movement, the ID of the recording sheet corresponding to the position after the movement, and the ID of the recording sheet. The outline corresponding to is determined. The CPU of the client PC 100 that executes this processing corresponds to means for determining a position on the time axis to be displayed according to the present invention.

  Then, the original of the period corresponding to the moved position is displayed on the original display unit W22, and the outline of the corresponding period is displayed on the outline display unit W23. Means for displaying the original chart corresponding to the determined position on the time axis by the CPU of the client PC 100 executing this process, and means for displaying the outline corresponding to the determined position on the time axis It corresponds to.

  Further, as shown in FIG. 14, the outline display portion W23 displays the range of the original currently displayed on the original display portion W22 as a rectangle P4. When the user drags the rectangle P4, the client PC 100 determines the position of the drag destination and moves the rectangle P4 to the drag destination. The CPU of the client PC 100 that executes this processing also corresponds to means for accepting an input operation for the outline or timeline display of the present invention, as in the case of detecting the operation on the time slider.

Then, the client PC 100 determines a section on the time axis of the rectangle P4 after being dragged. The CPU of the client PC 100 that executes this processing corresponds to means for determining the position on the time axis to be displayed. A section on the time axis, that is, a chart image corresponding to the drag destination time of the rectangle P4 is displayed on the original display portion W22. Further, when the mouse cursor is moved to a desired position in the outline display section and clicked, a chart image corresponding to the time at the clicked position is displayed on the original display section W22. The CPU of the client PC 100 that executes the above processing corresponds to means for displaying an original chart corresponding to the determined position on the time axis of the present invention.

  The user can display original data at a time corresponding to a desired position on the outline on the original display unit W22 by dragging on the outline display unit W23 as described above or by selection (mouse click or the like) using a pointing device. This function can be called a chart image search function using an outline.

  Hereinafter, display functions that can be used in the image window W2 illustrated in FIG. 14 will be described. First, when displaying the original chart image in the information system, the time base display function and the original base display function can be selected. FIG. 15 is a diagram illustrating the time base display function.

  The time-base display function is a function that displays only the portion where the waveform data exists in the chart image. The location where the waveform data exists can be determined, for example, from the recording period of the recording file table of FIG. For example, in the vicinity of the end (end point) of the recording paper 1 in FIG. 15, there are a left section indicated as “data present” and a section indicated as “no data”. Near the end (starting point) of the recording sheet 2, there are a right section indicated as “data present” and a section indicated as “no data”. In this information system, in the time base display function, such a section of the recording paper 1 “data present” and a section of the recording paper 2 “data present” are connected and displayed. In this display, the chart image is displayed as a waveform in which data continuously exists irrespective of the presence or absence of the end of the recording paper. As can be seen from FIG. 15, the chart image in the recording period P3 in this case is composed of images read from a plurality of recording papers including the chart paper 1 and the chart paper 2.

  Further, in a section where there is no recording, that is, a section where no waveform value is recorded, only the time is displayed as shown in FIG. 16, and the original image is not displayed. In this case, in the recording period at the bottom of the screen, a portion where there is no recording is displayed in a light color.

  On the other hand, FIG. 17 is a diagram for explaining a display function based on an original. In the original-based display function, unlike FIG. 16, an image read from the scanner is displayed even in a section without a waveform. As described above, the original base display function allows the user to check the actual waveform equivalent to the original recording paper even at the end of the recording paper. On the other hand, by switching to the time base display function, the chart image can be confirmed in the state where the waveform is recorded and the unnecessary terminal portion is hidden.

  FIG. 18 is a diagram for explaining the image cueing function. The image cueing function is a function for switching the display between two chart images at positions sandwiching an unrecorded section. For example, in the upper screen of FIG. 18, the waveform is displayed from the right side of the screen, and the absence of recording is displayed on the left side of the screen. Here, when the user clicks the left cue button, a chart image of the recording paper on which the adjacent waveform is recorded on the left side of the upper waveform is displayed. The right cue button is used for the reverse switching.

  Of the sections not recorded on the recording paper as described above, the location before the start of recording is on the time axis before the “start” time in the record corresponding to the first chart image in the recording file table of FIG. It can be grasped as a position. Further, the location after the end of the recording can be grasped as the position on the time axis before the “start” time in the record corresponding to the chart image at the end of the recording file table of FIG.

FIG. 19 is a diagram for explaining the manual scroll function. When the user drags the pointer on the original display portion W22, the chart image is scrolled in the dragged direction. Here, for example, when using a mouse, the drag is an operation of moving the mouse pointer on the screen by an operation of rubbing the mouse with the mouse button pressed. Note that, instead of dragging, a rotation unit provided on the upper surface of the mouse called a mouse wheel may be rotated. For example, right scrolling may be performed by rotating the mouse wheel downward, and left scrolling may be performed by rotating upward, for example.

  Although not shown here, the information system provides an automatic scroll function. By pressing an automatic scroll button provided on the toolbar, a state where the button is pressed is displayed, and automatic scrolling of the chart image on the screen is executed. As the automatic scroll buttons, fast reverse, return, forward, fast forward, and stop buttons are provided. In the fast return and the return, the chart image is continuously moved and displayed in the direction of returning to the past from the recording time when the time axis is currently displayed. In fast forward and forward, the chart image is continuously moved and displayed in the direction in which the time axis advances from the currently displayed recording time.

  FIG. 20 shows an example of buttons for executing other operations on the original display unit W22. In FIG. 20, an entire vertical display button 111, an enlargement button 112, and a waveform information display button 114 are shown. By clicking the vertical whole display button 111, the display dimensions are determined based on the vertical (vertical) dimensions of the chart image. That is, the chart image is adjusted to a size that fits on the screen in the vertical direction and displayed.

  The enlarge button 112 is a button for instructing execution of a function for enlarging and displaying the chart image. As long as the enlargement button 112 is pressed, the original image is gradually enlarged (as time passes). Although not shown in FIG. 20, the toolbar is also provided with a reduction button for reducing the chart image. These buttons correspond to means for enlarging or reducing the present invention.

  The waveform information display button 114 is a button for instructing transition to a mode for executing waveform value attribute display. In the waveform value attribute display, the value and attribute of the waveform at the cursor position on the chart image are displayed as a text character string.

  FIG. 21 shows a display example when the chart image is enlarged on the original display portion W22. In this information system, when the chart image is enlarged and the time axis for displaying the time on the chart (the scale at the bottom of the chart image) goes outside the display area, the screen of the original display unit W22 is divided into two upper and lower screens. To divide. Then, the time memory unit W24 is displayed on one side (downward in the example of FIG. 12). Therefore, the user can confirm the recording time of the data with the chart image enlarged.

  The client PC may detect an operation for instructing the user to enlarge and calculate the size (for example, the number of pixels in the X-axis direction and the Y-axis direction) after the chart image is enlarged. Then, when the enlarged chart image is displayed on the original display unit W22, it may be determined whether or not the time axis below the chart image can be displayed. Then, in the enlarged chart image, when it is determined that the time axis at the bottom of the chart image protrudes from the original display portion W22, the screen of the original display portion W22 is divided into upper and lower parts as shown in FIG. Then, the time memory unit W24 may be displayed on one side (downward in the example of FIG. 12). This corresponds to means for determining whether the CPU of the client PC 100 that executes this processing can display the same screen area of the present invention, and means for dividing and displaying.

Of course, when it is determined that the time axis below the chart image does not protrude from the original display portion W22, the time memory portion W24 is displayed in the same screen area divided from the original display portion W22.

  FIG. 22 shows an example of displaying the waveform attribute information. In this information system, when the user places a cursor of a pointing device such as a mouse on the original display unit W22, the time at the cursor position, the waveform attribute, and the like are displayed. In this example, the data is the container bottom temperature, the time is 13:31 on April 6, 2004, and the waveform value at that time is displayed as character information at 149.8 degrees Celsius. The waveform value is a value determined by image processing from the original chart image by the management server 1. Therefore, the user can recognize the value of the current cursor position without restricting the line of sight to the time axis and the waveform value axis.

  FIG. 23 shows an example of the multiple chart display function. A plurality of chart images can be displayed simultaneously on the original display portion W22. The CPU of the client PC 100 that executes this processing corresponds to means for displaying the time axes in parallel according to the present invention. In addition, a plurality of chart images can be scrolled synchronously. The CPU of the client PC 100 that executes this processing corresponds to means for moving in synchronization with the time axis direction of the present invention. Thereby, the user can refer to the plurality of chart images while comparing them.

  In the example of FIG. 23, the chart image C1 (corresponding to the first original chart of the present invention) is data of the first recorder (for example, the shuttle pressure, corresponding to the first physical quantity of the present invention), and the chart The image C2 (corresponding to the second original chart of the present invention) is data of the second recorder (for example, the pot temperature, corresponding to the second physical quantity of the present invention). In addition, a plurality of (two in FIG. 14) graphs exist in each of the chart images C1 and C2 because there are spare recorders for the first recorder and the second recorder.

  In the multi-chart display function, the client PC 100 may further accept the designation of the second physical quantity in displaying the chart image C1 corresponding to the first physical quantity. Then, the chart images C1 and C2 corresponding to the first physical quantity and the second physical quantity may be acquired from the management server 1 through the web server 101.

  In this case, for the same physical quantity (for example, the pot pressure data), different date and time designations (first reference time point and second reference time point of the present invention) are received, and each time is represented as a time axis of the chart image. A plurality of chars may be displayed at the same origin. In that case, data of different dates and times of the same physical quantity are displayed as a plurality of charts (for example, the first original chart and the second original chart). This function is useful when you want to compare trends of the same physical quantity at different dates and times.

FIG. 24 shows an outline of simultaneous scrolling of a plurality of chart images having different recording times per pixel. As shown in FIG. 24, depending on the recorder, the recording time per pixel (time resolution) may not always match. In that case, the sizes in the X-axis direction of the chart images read from the respective images do not match. Therefore, when such a plurality of chart images are scrolled simultaneously, the time is the same at the start of recording, but the time cannot be synchronized between the chart images as the recording period progresses. In this information system, time synchronization processing is executed in simultaneous scrolling. This is a process of displaying the two chart images C20 and C21 so that the times coincide with each other at a reference position of the original display portion W22, for example, at the center of the screen. For example, in the example of FIG. 24, the position of 20 minutes is displayed in synchronization. By executing such processing, it is possible to provide a function of easily comparing and contrasting between a plurality of chart images, which has been difficult to compare with the recording paper. The CPU of the management server 1 that executes the processing of FIG. 24 corresponds to a means for matching within the displayed time axis range of the present invention. In FIG. 24, the process of synchronizing the times of the two chart images at the reference position on the screen is shown. However, if the processing capability of the information system permits, one chart is used instead. You may make it synchronize time by extending | stretching or shortening the time-axis of an image. For example, before the simultaneous scroll display, the image may be expanded so that the time of the end TE1 of the chart image C21 coincides with the time of the end TE0 of the chart image C20. Conversely, the image may be shortened so that the time of the end TE0 of the chart image C20 coincides with the time of the end TE1 of the chart image C21. In this case, the expansion and contraction of the image may be performed for each divided chart image file. Instead of such processing, the time axis may be expanded or shortened in units of one screen image displayed on the original display unit W22. The decompression and shortening of the image may be executed by the client PC 100. Moreover, you may perform with the web server 100. FIG.

  The outline display part W23 is also provided with the same function as the original display part W22. FIG. 25 shows an example of a toolbar button in the outline display section. In FIG. 25, a display range reduction (narrowing down) button 121, a left movement button 122, a right movement button 123, and a display range expansion button 124 are shown.

  By clicking the display range reduction button 121, the display period in the outline display portion is reduced, and the outline is narrowed down to a narrow range. This is a process of extending the X axis (time axis) of the outline image. At this time, the outline is narrowed down by fixing the center position of the X axis (time axis) of the outline display section.

  Further, by clicking the display range enlargement button 124, the X axis of the outline image is compressed, and the outline of the recording paper positioned before and after the currently displayed outline is displayed. For example, when an outline of a chart image generated from one recording sheet is displayed on the outline display unit, an outline n image formed from three recording sheets is outlined by clicking the display range enlargement button 124. Displayed on the display. Further, the outline display unit displays an outline adjacent to the currently displayed outline by the left move button 122 and the right move button 123.

  Further, although not shown, a function for annotating the displayed chart is provided. That is, after moving the cursor to an arbitrary position in the chart image window W2, when a specific operation (for example, selection from a pop-up menu by clicking the right button of the mouse) is executed, an annotation to be described at the cursor position on the screen is input. It becomes a mode. An annotation display symbol (for example, an icon symbolizing a balloon) is set at the annotation description position on the screen. An annotation is a comment that the user writes on the chart image. Enter a text string that is an annotation and save it.

  The user can set the display color of the display symbol of the annotation by selecting the menu. Even when a plurality of annotations are set for one chart image by setting the display color, the plurality of annotations can be easily identified.

  In this information system, the annotation is transmitted from the client PC 100 to the web server 101 and stored in the database server 103 through the management server 1. In this case, the annotation ID, the type ID, the information for identifying the user with the annotation, the text that is the content of the annotation, the recording machine ID of the chart image to which the annotation is attached, the time (date and time) to which the annotation is attached, the annotation symbol The display color can be saved. The annotation ID is information that uniquely identifies the annotation. The type ID indicates a type, and for example, levels such as A, B, and C may be set as the importance. Moreover, you may set distinction, such as plant common, group common, and personal use.

The annotation set in the chart image is searched based on, for example, the recorder ID and time of the chart image, and the annotation symbol is displayed in the set display color when the chart image is displayed. Note that a function may be provided in which an annotation is searched by designating a specific recording device, time, etc., and an annotation list is displayed.

<Processing flow>
The processing flow of this information system will be described with reference to FIGS. FIG. 26 is a diagram illustrating an image data storage process. This processing is realized by a personal computer that controls the scanner in the data construction system. This process is a computer program executed on the CPU of the personal computer. However, the management server 1 shown in FIG. 1 may execute at least a part of the processing (S1-S5) in FIG.

  In this process, the personal computer first receives information such as a management number, instrument number, name, and time base point information shown in FIG. 6 through a display device and an operation device (keyboard, pointing device) (S1).

  Next, the personal computer accepts the setting of the upper limit value of the image data (S2). The upper limit value is a parameter for determining whether or not it is necessary to divide the chart image generated by the scanner. When the amount of image data is large, the response may be delayed due to the processing capability of the information system. In this information system, an upper limit value of the amount of image data to be handled is set. However, this upper limit value should be set appropriately according to the processing capability of the information system. As the upper limit value, the information system may hold a default value. Therefore, the upper limit value is changed by improving the processing capability of the information system as technology advances. Alternatively, the number of image divisions may be calculated after calculating the amount of image data from the resolution of the image and the recording paper size. The personal computer may decompose the image according to the number of divisions. Further, the personal computer instructs the scanner about the resolution and instructs the recording paper to be scanned (image reading).

  Next, the personal computer receives image data and the number of pixels in the X and Y directions from the scanner (S3). In this information system, the image data is, for example, raster data having an HSV value for each pixel. Here, the HSV value is a component of three components: hue, saturation (Saturation Chroma), and brightness (Brightness Lightness Value). A color space described by HSV values is referred to as an HSV color space. It is known that HSV values and RGB values can be converted into each other using a predetermined conversion formula. Therefore, although HSV values are used here, processing may be performed using RGB values. If the scanner has an interface that outputs RGB values, image data may be acquired once with RGB values and converted to HSV values. Although not shown in FIG. 26, in this information system, on the scanner side, the image is divided and delivered to the personal computer depending on the processing capability. Therefore, the process of S3 is repeated by the number of divisions.

  Next, the personal computer determines whether the amount of image data exceeds the upper limit (S4). If the amount of image data exceeds the upper limit value, the personal computer divides the image data into a plurality of pieces in the X direction (scanning direction of the printing machine) (S5). The CPU of the personal computer that executes this processing corresponds to the dividing means of the present invention.

  Then, the personal computer outputs the image data to a file (S6). The file name to be output at this time is generated using an ID for identifying a record in the recording file table.

Further, the recording period of the divided chart image can be obtained by the ratio of the recording period of the chart image before the division and the number of pixels of the chart image before and after the division. Further, the recording period of the chart image before division can be determined by the number of pixels of the chart image delivered from the scanner and the recording speed in the base point information input on the screen of FIG.

  Then, the personal computer sets the recording period (start and end in FIG. 9), file name, and size of each chart image in the recording file table (S7). Thereafter, the generated image file and recording file table of the chart image are delivered to the management server 1 and stored in the storage 104 of the database server 103. By setting these tables, the image files of the chart image divided into a plurality are combined based on the information in the recording file table of FIG. 12 and displayed in the chart image window W2 shown in FIG. . The CPU of the personal computer that executes this processing corresponds to means for generating an original chart that combines the divided images of the present invention.

  Further, the personal computer generates outline data together with the division of the chart image and outputs it to a file (S8). The outline data file output at this time may be generated using an ID for identifying a record in the recording paper table. As a result, one outline data is generated on one recording sheet. The created raster outline may be stored in the storage 104 of the database server 103.

  FIG. 27 shows the details of the outline data creation process (S8 in FIG. 26). The personal computer CPU that executes this processing or the CPU 11 of the management server 1 corresponds to the outline generation means of the present invention. In this process, the personal computer reads out the setting of the type of outline data to be created from the system parameters (S81). In this information system, either a vector outline or a raster outline is designated.

  Next, the personal computer determines whether or not the designation is a vector outline (S82). If the system parameter is specified as a vector outline, the personal computer executes a vector outline creation process (S83). If the system parameter is designated as a raster outline, the personal computer executes a raster outline creation process (S84). In the raster outline creation process, a process for reducing pixels in the time axis direction of the chart image may be executed.

  FIG. 28 shows details of the vector outline creation processing (S83 in FIG. 27). In this process, the personal computer separates the image from the scanner into pen colors for each pixel line (S831). Here, a line refers to a column of pixels arranged in the Y direction. Further, the pen color can be obtained for each recorder by referring to the plant equipment data in FIG.

  Then, the personal computer determines the presence or absence of an image for each pen color (S832). The presence / absence of an image may be determined, for example, by checking whether the H value, the S value, and the V value match each pen color within a predetermined allowable value range for each pixel. This allowable value may be stored as a system parameter of the personal computer.

  If it is determined that there is an image (YES in S833), the personal computer sets the bit of the color corresponding to the pixel to 1 (S834). If it is determined that there is no image (NO in S833), the personal computer sets the bit corresponding to the pixel to 0 (S835). Such bits need only be provided for the pen color. The personal computer CPU that executes this processing or the CPU 11 of the management server 1 corresponds to means for extracting a monochrome image of the present invention.

Next, the personal computer determines whether or not the processing for one line of pixels has been completed (S836). If the processing for one line of pixels has not been completed, the personal computer returns the control to S832.

  When the processing for one line of pixels is completed, the personal computer executes processing for compressing a plurality of lines in the time axis direction (S837). This is a process of calculating an average value of a plurality of lines to make one line. However, a process of leaving a pixel line and discarding other lines may be executed for each of a plurality of lines. In that case, the discarding of the pixel line may be executed before the process of S831. The personal computer CPU that executes this processing or the CPU 11 of the management server 1 corresponds to a means for generating an outline by reducing the number of pixels of the present invention.

  On the other hand, when the processing for the pixels of one line is completed, the personal computer determines whether or not the processing for all the lines has been completed (S838). If all the lines have not been processed yet, the personal computer returns the control to S61. Then, when the processing for all the lines is still finished, the personal computer finishes the processing.

  With the above processing, only pixels that match the color of each pen are extracted from the chart image. As a result, a bit plane corresponding to the color of the pen is formed. For example, in a green bit plane, a locus drawn with a green pen is represented as bit 1, and a portion having no locus is bit 0. The same applies to other color planes.

  FIG. 29 is a diagram illustrating a process of providing a chart image to the client PC 100. This process is realized by a computer program executed on the CPU 11 of the management server 1 that responds to the client PC 100 through the web server 101. However, the web server 100 and the management server 1 may execute the following processing as one computer.

  In this process, the web server 100 accepts designation of a chart to be displayed, designation of a display time point, and the like from the client PC 100 (S11). This processing is, for example, reading of the search condition setting contents on the chart search screen W1 shown in FIG. 13 and delivery to the web server 101. Then, the web server 101 delivers the search condition specified to the management server 1.

  Then, the management server 1 searches for a chart image that matches the requested search condition, for example, a chart image file measured in a designated recording machine and including a display time point (S12). This search may be performed by scanning the recording file table shown in FIG. In addition to the above, various search conditions for chart images can be specified. For example, various character strings included in “name”, “installation location” of the recording machine table of FIG. 9, “recording contents” of the recording pen table of FIG. 10, “person in charge” of the recording paper table of FIG. Accept the designation and execute the search.

  Next, the recording period is read from the record in the recording file table corresponding to the chart image file corresponding to the search condition, and the time axis range is calculated. In addition, the time axis range displayed on the original display portion W22 including the designated recording time is calculated. Then, the management server 1 delivers the time axis information and the chart image to the web server 101. The web server 101 generates time display data from the time axis information and provides the original image chart to the client PC 100 (S13). Further, the management server 1 delivers outline vector data to the client PC 100 through the web server 101. (S14).

  Furthermore, the management server 1 acquires the operation period information of each facility or each recorder from the plant facility data, and delivers it to the web server 101. The web server 101 creates information for displaying the recording period and the time slider based on the operation period information, and delivers it to the client PC 100 (S15). The operation period information includes information for identifying each recording device and date / time information indicating the operation period and the non-operation period.

  FIG. 30 is a diagram illustrating processing in the client PC 100. The client PC 100 is normally waiting for an event (S29, S30). An event is a notification that the user has detected an operation unit such as a pointing device in the client PC 100. This notification is delivered to the application program through the OS (operating system) of the client PC 100. When an event occurs (Y in S30), the client PC 100 determines the type of event.

  In this example, the client PC 100 first determines whether or not an initial display instruction has been given (S31). When there is an initial display instruction, the client PC 100 executes a chart image acquisition process from the web server 101 (S32). In the initial display, images are searched and displayed from the chart search screen shown in FIG. 13 according to the same search conditions as those described in S12, that is, various character strings and attribute information. Then, the client PC 100 displays the acquired chart image. Thereafter, the client PC 100 returns the control to S29.

  If the event is not an instruction for initial display, the client PC 100 next determines whether or not it is an instruction for simultaneous scrolling of a plurality of charts (S33). When there is an instruction to simultaneously scroll a plurality of charts, the client PC 100 executes a simultaneous scrolling process for the plurality of charts (S34). Thereafter, the client PC 100 returns the control to S29.

  If the event is not an instruction for simultaneous scrolling of a plurality of charts, the client PC 100 next determines whether or not the search is for specifying a time (S35). When there is a search instruction specifying the time, the client PC 100 executes a search process specifying the time (S36). Thereafter, the client PC 100 returns the control to S29.

  If the event is not a search specifying a time, the client PC 100 executes processing according to another event (S37).

  FIG. 31 is a diagram illustrating a multiple chart simultaneous scroll process. In this process, the client PC 100 determines the display section of the display target chart image from the user's scroll operation (S341). Then, the client PC 100 executes a synchronous display process for the next chart image (S342). The CPU of the client PC 100 that executes this processing corresponds to means for displaying the time axes in parallel according to the present invention. In this process, the CPU of the client PC 100 that executes the process when scrolling is performed corresponds to means for moving in synchronization with the time axis direction of the present invention.

  Then, the client PC 100 determines whether all charts to be scrolled simultaneously are displayed (S343). If all chart images to be scrolled simultaneously are not displayed, the client PC 100 returns the control to S342. When all chart images to be scrolled simultaneously are displayed, the client PC 100 ends the process and returns to waiting for an event in FIG.

FIG. 32 is a flowchart of the next chart image synchronous display process (details of S342 in FIG. 31). In this process, the client PC 100 determines whether or not the chart image to be displayed is in the client PC 100 (S3420). If the client PC 100 does not have a display target chart image, the client PC 100 discards the non-display target chart image and acquires the display target chart image and attribute information of the chart image from the web server 100 (S3421). The acquired chart image is stored in the memory of the client PC 100 together with the attribute information.

  Then, the time of the reference point on the screen is calculated. Here, the reference point is, for example, the center of the screen original display W22. Then, chart images before and after the reference point time are read from the memory (S3423). Then, the chart image read out in accordance with the reference point time is arranged and displayed on the original display unit W22 (S3424). Then, the client PC 100 ends the process and returns to the event wait of FIG.

  At this time, a process of expanding or shortening the chart image may be executed for each screen. That is, in the synchronous display process, the recording time lengths of the plurality of chart images in the time axis direction may be matched for each screen.

  FIG. 33 is a diagram exemplifying search processing (S36 in FIG. 30) in which time is specified. Search processing that specifies time includes, for example, chart image cue processing, manual scrolling, automatic scrolling, chart image enlargement processing, chart image reduction processing, vertical whole display processing, scrolling on the outline, designation of the position on the outline Is a process corresponding to a change in the display of the original and the outline by moving the time slider, etc., and is a process for changing the time range for displaying the chart image being displayed.

  In this process, the client PC 100 determines the display section of the chart image to be displayed (S361). Then, the client PC 100 determines whether a chart image corresponding to the display section exists in the client PC 100 (S362). The CPU of the client PC 100 that executes this processing corresponds to the means for searching whether or not it is stored in the present invention.

  When the chart image corresponding to the display section does not exist in the client PC, the client PC 100 discards the chart image that is not the display target, acquires the chart image that is the display target and the attribute information of the chart image from the web server 100, It is held in the memory (S363). The CPU of the client PC 100 that executes this process corresponds to a means for temporarily storing the client apparatus in the present invention. As the chart image that is not the display target, for example, the chart image that exists in the section farthest from the current display section may be discarded. In that case, an upper limit of the capacity of the chart image to be stored may be determined, and the chart image may be discarded when the capacity of the stored chart image exceeds the upper limit. Further, for example, the chart image storage area may be configured as a ring buffer and overwritten sequentially.

  If the chart image corresponding to the display section exists in the client PC 100, the client PC 100 changes the display range of the chart image (S364).

  Next, the client PC 100 displays the chart image on the original display unit W22 (S365). The CPU of the client PC 100 that executes this processing corresponds to means for displaying on the screen of the client device of the present invention. Thereafter, the client PC 100 ends the process and returns to the event wait of FIG.

In the above, the chart image display is stored in the memory of the client PC 100 and the chart image is displayed without accessing the web server 101 and the management server 1. However, with regard to the outline display of the outline display W23 and the display of the recording period of the recording period display unit 33, the data obtained from the web server 101 is once held in the memory of the client PC 100, so A good display can be realized.

  FIG. 34 is a diagram illustrating waveform value display processing (see the screen of FIG. 22). In this process, the client PC 100 accepts an operation on the chart image by the user's pointing device. Then, the time at the cursor position of the pointing device is calculated (S371). The CPU of the client PC 100 that executes the process of S371 corresponds to a unit that receives the designation of the position of the present invention.

  Next, a pixel is searched in the waveform value direction (Y-axis direction) at the cursor position of the pointing device. Then, by determining whether or not there is a place where these colors match any of the pens, each pixel in the waveform value direction is separated into the respective pen colors at the cursor position (S372). The CPU of the client PC 100 that executes the processing of S372 corresponds to means for extracting an image portion of the present invention.

  The client PC 100 determines the presence / absence of a waveform for each pen color. Then, the pixel at the center of the waveform is calculated and the waveform value is determined (S373). For example, when the bit corresponding to red is detected as 00... 01110... 0 in the waveform value direction, the waveform value may be calculated from the center position of the location corresponding to the bit 111. The CPU of the client PC 100 that executes the processing of S373 corresponds to means for determining the physical quantity value of the present invention.

The waveform value is, for example, the relative number of pixels based on the base point (1) in FIG. 22 and can be obtained as follows.
(Equation 1)
Data value per pixel = (value of base point (2) −value of base point (1)) / (Y-direction pixel position of base point position (2) −Y-direction pixel position of base point position (1));
(Equation 2)
Pixel position at the center position of the waveform = pixel position obtained in S373−Y-direction pixel position at the base point position (1);
(Equation 3)
Waveform value = data value per pixel × pixel position at the center of the waveform;
Then, the client PC 100 displays the calculated time, waveform value, and waveform attribute in the vicinity of the waveform (S374). The CPU of the client PC 100 that executes the process of S374 corresponds to means for displaying the value of the physical quantity of the present invention.

<Effect>
As described above, the information system of the present embodiment reads data on a paper medium such as recording paper with a scanner and forms a chart image. The file name of each chart image is associated with the recording machine ID and the recording paper ID according to the recording file table of FIG. 12, and the recording period and the size of the image are recorded. Furthermore, the recording machine table of FIG. 9 stores related information such as the name of the recorded chart image, the installation location, etc. together with the ID of each recording machine.

  Therefore, when the user requests the client PC 100 to perform processing for searching the chart image based on the information related to the recorder, the installation location, etc. included in the plant equipment, the person in charge, or the recording period, the web server 100 Can instruct the management server 1 to search the corresponding chart image and provide it to the client PC 100.

  In this case, since the chart image is separated from the original recording paper and stored in the database server 103, there is no possibility of loss, corruption, or loss of the original, and a plurality of users can simultaneously Access chart images.

  Furthermore, this information system detects a user operation at the client PC 100, chart image search processing, manual scrolling, automatic scrolling, chart image enlargement processing, chart image reduction processing, vertical whole display processing, outline scrolling Search processing for specifying various times such as changing the original display by specifying the position on the outline, moving the time slider, and the like is executed. In this process, once a chart image related to the target recorder is specified, the outline and time slider can be used to search for the desired original after grasping the outline of the waveform and the operating period of the equipment. That is, the user can display a chart image at a desired time by scrolling and clicking the outline data and moving the time slider while referring to the trend of the entire chart and the operation period of the plant.

  In that case, first, the client PC 100 determines whether or not the chart image to be displayed exists in the client PC 100, and when it does not exist, the client PC 100 accesses the web server 100 and acquires the chart image. Therefore, a search process that specifies the time of the chart image is realized with extremely good operation.

  In addition, the information system displays the original chart image and outline data, as well as the recording period corresponding to the operating period of the equipment, so it is possible to check the operating status of the equipment and quickly find the chart image at the time when it is originally needed. Can do.

  Furthermore, since the client PC 100 accepts a user operation and displays the waveform value of the chart corresponding to the pen color of the chart image, the user is less burdened that the line of sight is constrained to the coordinate axis, and extremely easily, The recorded value can be recognized.

  Further, since the time corresponding to the time at which the user moved the cursor and the attribute of the data are displayed, the user can easily recognize the value and attribute of the data. In addition, a plurality of chart images can be displayed side by side and scrolled synchronously. Therefore, the data of a plurality of related recorders can be compared and contrasted.

  Furthermore, according to the information system of the present embodiment, image data is divided into a plurality of files and recorded by the management server 1, the database server 103, and the like so that the load is not excessively heavy. Then, when the user inputs a search condition for the required chart image (device type, recorder type, data name, recording period, etc.), a chart image that matches the search condition is displayed. The responsiveness of the information system can be improved and the user operation can be greatly simplified.

<Modification 1>
FIG. 35 is a diagram illustrating a modification of the waveform value display process (see the screen of FIG. 22). In FIG. 34 described above, the waveform value display processing is executed by dividing the image into pen colors of the recording machine and obtaining the value of the center position of the waveform corresponding to each pen color. However, the waveform value display process is not limited to the process of FIG. 34, and the following process may be executed. Here, an example of processing in which the R value, the G value, and the B value are used will be described, but the H value, the S value, and the V value can be similarly realized. That is, the following processing may be executed by converting the R value G value B value into the H value S value V value.

In this process, the client PC 100 calculates the time in the time memory of the original display unit W22 from the position of the cursor (S381). The time may be calculated based on the number of pixels from the origin of each chart image (see “Start” in FIG. 12) to the cursor position, the size of the chart image in the X direction, and the recording period of the chart image (see FIG. 12). . Next, the client PC 100 executes a waveform value determination process at a cursor position such as a mouse cursor (S382).

  Further, the client PC 100 reads the waveform attribute managed by the management server 1 through the web server 100 (S383). Then, the client PC 100 displays the calculated time, waveform value, and waveform attribute (S384).

  FIG. 36 shows details of the waveform value determination process (S382 in FIG. 37). In this process, the client PC 100 scans the chart image in the Y-axis direction at the time designated by the cursor. The client PC 100 first calculates the average R value, G value, and B value of the recording paper (S3821). However, the average R value, G value, and B value of the recording paper may be measured in advance for each recording paper and stored in the memory of the client PC 100 and the hard disk.

  Next, the client PC 100 calculates the difference value ΔR value, ΔG value, and ΔB value from the average R value, G value, and B value in each pixel of the chart image (data read from the recording paper) at the specified time. (S3822).

  Next, the client PC 100 smoothes the difference value ΔR value, ΔG value, and ΔB value at each pixel at the specified time (S3823). For smoothing, for example, an average value of the target pixel and pixels before and after the pixel in the Y-axis direction may be calculated. The range of pixels before and after calculating the average value may be set as a system parameter of the client PC 100, for example.

  Next, pixels whose smoothed difference values ΔR, ΔG, and ΔB are equal to or smaller than a predetermined value are cleared (S3824). This is because it may be considered that no graph is recorded in a portion where the difference value ΔR value, ΔG value, and ΔB value are almost the same as the average value.

  Next, a peak position is determined for each of the remaining difference value ΔR value, ΔG value, and ΔB value (S3825). As for the peak position, for example, for each of the difference value ΔR value, ΔG value, and ΔB value, the center position of the portion where the value is not cleared may be obtained. Alternatively, the peak values of the smoothed difference values ΔR, ΔG, and ΔB may be obtained.

  Then, the waveform value at the peak position may be calculated from the number of pixels in the Y direction at the peak position and the waveform value per pixel. The waveform value per pixel can be calculated from the size in FIG. 9 and the recording range in FIG. That is, waveform value per pixel = width of recording range (upper limit−lower limit) / size Y;

<Modification 2>
In the above embodiment, the web server 101, the management server 1, the database server 103, and the personal computer of the data construction system are shown as different computers, but any two or more of the above may be constituted by a single computer. Good. For example, the web server 101 and the management server 1 may be an integrated computer. Alternatively, the web server 101, the management server 1, the database server 103, and the data construction system personal computer may be integrated.

<Modification 3>
In the above embodiment, the input of the time base point information shown in FIG. 6 is accepted, and the time per pixel is calculated from the recording speed. Then, the time is assigned to the pixels behind (scanning direction of the scanner) from the date and time. Instead of such processing, for example, the recording start time of the recording paper corresponding to T0 in FIG. 4 and the recording start time of the recording paper corresponding to TE may be received, and the recording period per recording paper may be set. . Further, the recording period may be divided by the number of pixels to calculate the time per pixel.

It is a system configuration figure of an information system concerning one embodiment of the present invention. It is a functional block diagram of the said information system. It is a hardware block diagram of a management server. It is a figure which shows the process outline | summary of chart image creation. It is an example of the setting screen which sets the reference point on a time axis. It is an example of the input screen of the time when setting the reference point on a time axis. It is an example of the input screen of the value base point information for specifying the waveform value of a chart image. It is an example which shows the example of creation of a vector outline. It is an example of data of a recorder management table. It is an example of data of a recording pen table. It is an example of data of a recording paper table. It is a modification of the data of a recording paper table. It is an example of data of a recording file table. It is a figure which shows the example of operation with respect to a chart search screen. It is a figure which shows the example of the screen which displays a chart image. It is a figure explaining a time base display function It is a figure which illustrates the area where the waveform value is not recorded in a time base display function. It is a figure explaining the display function on the basis of an original. It is a figure explaining an image cueing function. It is a figure explaining a manual scroll function. Examples of buttons for performing other operations on the original display section Display example when the chart image is enlarged It is a figure which shows the example which displays waveform attribute information. It is a figure which shows the example of a multiple chart display function. An outline of simultaneously scrolling a plurality of chart images having different recording times per pixel is shown. It is a figure which illustrates the button of the tool bar of an outline display part. It is a figure which illustrates image data storage processing. It is a figure which shows the creation process of outline data. It is a figure which shows the production process of a vector outline. It is a figure which illustrates the provision process to the client PC of a chart image. It is a figure which illustrates the process in client PC. It is a figure which illustrates multiple chart simultaneous scroll processing. It is a figure which illustrates the synchronous display process of the following chart image. It is a figure which illustrates the search process which designated time. It is a figure which illustrates a waveform value display process. It is a figure which illustrates the modification of a waveform value display process. It is a figure which shows the detail of a waveform value determination process.

Explanation of symbols

11 CPU
12 Memory 13, 15, 17, 19, 20 Interface 14 HDD
Reference Signs List 16 Display device 18 Operation device 20 Communication interface 22 Removable recording medium drive device 99 Network 100 Client PC
101 Web server 103 Database server 104 Storage W2 Chart image window W21 History display part W22 Original display part W23 Outline display part

Claims (15)

A data construction device for digitizing paper media;
A data storage device for storing the constructed electronic data;
A management server for managing digitized data;
A communication server enabling access to the management server and the data storage device via the network;
A data management system comprising one or more client devices connected to a communication server via a network,
The data construction device includes original chart generation means for acquiring image data from a paper medium on which a physical quantity change with time is recorded, and generating an original chart in which an image of the physical change with time is incorporated,
The management server
Outline generating means for generating an outline by reducing the number of pixels of the original chart in the time axis direction,
Means for associating and storing the original chart and the outline in the data storage device;
A timeline generating means for generating a timeline indicating a section on the time axis in which a record of the physical quantity exists;
Data search means for accepting designation of attribute information including a character string related to the physical quantity from the client device through the communication server and searching for a corresponding physical quantity and displaying a list on the screen of the client device,
The client device receives designation of a physical quantity in the list, delivers it to the management server through the communication server, receives an original chart, an outline and a timeline corresponding to the delivered physical quantity, and displays them on a screen A data management system comprising:
The original chart generation means includes
Means for receiving information about the base point of the observation period and adding time information to the original chart;
Means for receiving information about the base point of the observed value and adding waveform values to the original chart;
Means for storing the attribute information of the physical quantity in association with the original chart,
The timeline generating means includes
Means for accepting an input of an identification number of a physical quantity, an identification number of a recording sheet, and a recording period;
The recording period when the recording exists in the period from the start of the recording of the physical quantity to the latest recording by searching the recording period corresponding to the recording paper recorded by the data storage means for the identification number of the previous physical quantity And a means for generating a timeline so as to discriminate a recording non-execution time when no recording exists. The image display means includes
Means for displaying a first original chart, outline and timeline for a first physical quantity;
Means for accepting designation of a second physical quantity;
The data management system according to claim 1, further comprising: means for displaying the second original chart corresponding to the second physical quantity in parallel with the first original chart and the time axis. The image display means includes
Means for receiving designation of a first reference time point and a second reference time point for displaying one physical quantity;
Means for displaying a first original chart, outline and timeline corresponding to the one physical quantity with the first reference time point as a reference point on a time axis;
And a means for displaying a second original chart corresponding to the one physical quantity with the second reference time point as a reference point on the time axis, with the first original chart and the time axis aligned in parallel. The data management system according to 1. The image display means includes
When the time width per unit pixel in the time axis direction in the first original chart does not match the time width per unit pixel in the time axis direction in the second original chart, the time of the first original chart 4. The data management system according to claim 2, further comprising means for matching the position of the pixel in the axial direction and the position of the pixel in the time axis direction of the second original chart within a range of the time axis to be displayed. . The image display means includes
The first original chart and the data management system according to any one of claims 2 to 4 comprising means for moving synchronously display a second original chart in the time axis direction. The image display means includes
Along with the original chart, means for displaying a time axis when the physical quantity is recorded in the original chart,
Means for detecting an operation of enlarging or reducing the original chart;
Means for determining whether the time axis can be displayed in the same screen area as the original chart when an image is displayed in accordance with an operation of enlarging the original chart;
When the time axis cannot be displayed in the same screen area as the original chart, the screen area is divided into an area for displaying the enlarged original chart and an area for displaying the time axis. data management system according to any one of claims 1 to 5. The image display means includes
Means for accepting designation of a position on the original chart;
Means for extracting a part of the image indicating the physical quantity at a point on the time axis corresponding to the designated position;
Means for determining a value of a physical quantity at a point on the time axis from the portion of the image;
Data management system according to any one of claims 1 to 6 and means for displaying the value of the physical quantity in the vicinity of the original chart. The outline generation means includes:
Means for classifying pixels in the original chart into pixels of a predetermined target color and pixels of a color other than the target color, and extracting a monochromatic image composed of pixels of the target color;
Data management system according to any one of claims 1 to 7, and means for generating an outline by reducing the number of pixels the extracted single color image in the direction of the time axis of the recording. The image display means includes
9. The apparatus according to claim 1, further comprising: means for displaying a corresponding position of the time change recording of the physical quantity displayed in the original chart by at least one of a partial section of the time axis in the outline and a partial section in the timeline. The data management system according to any one of the above. The image display means includes
Means for accepting an input operation for displaying the outline or the timeline;
Means for determining a position on the time axis to be displayed based on the input operation;
Means for displaying an outline corresponding to the position on the determined time axis;
And means for displaying the original chart corresponding to the position on the determined time axis, data management system according to any one of claims 1 to 9. The original chart generation means includes
Means for dividing the image data into a plurality of positions on the time axis when the data amount of the image data acquired from the paper medium is larger than a predetermined reference value;
Data management system according to claim 1, any one of 10 and means for generating an original chart that combines the divided images by information defining the divided connection of each of the image data. The original chart generation means includes
Means for receiving the time of an arbitrary base point in the original chart and the conveyance speed of the paper medium at the time of recording as information on the base point of the observation period;
Means for determining a time per unit length on the original chart from the received reference time point and the conveyance speed;
Means for receiving values at any two base points in the original chart as information about the base point of the observed value;
Means for determining a value per unit length in the original chart from the values of the two received base points
The data management system according to any one of claims 1 to 11 . The image display means includes
Means for retrieving whether a copy of the original chart, outline and timeline specified from the client device is stored in the client device;
Means for displaying the copy on the screen of the client device if the copy is stored in the client device;
If the copy is not stored in the client device, the original chart, outline and timeline are called from the data storage means and displayed on the screen of the client device, and the original chart, outline and timeline are temporarily displayed. Means for storing in the client device
The data management system according to any one of claims 1 to 12 . A data construction device for digitizing paper media;
A data storage device for storing the constructed electronic data;
A management server for managing digitized data;
A communication server enabling access to the management server and data storage means via the network;
A data management method executed by a data management system comprising one or more client devices connected to a communication server via a network,
The data construction device acquires image data from a paper medium in which a time change of a physical quantity is recorded, and executes an original chart generation step for generating an original chart in which an image of the time change of the physical quantity is incorporated,
The management server
An outline generation step for generating an outline by reducing the number of pixels of the original chart in the time axis direction; and
Storing the original chart and the outline in association with each other in the data storage device;
A timeline generating step for generating a timeline indicating a section on the time axis in which a record of the physical quantity exists;
A data search step of receiving designation of attribute information including a character string related to the physical quantity from the client device through the communication server and searching for a corresponding physical quantity and displaying a list on the screen of the client device; and
The client device receives the designation of the physical quantity in the list, passes it to the management server through the communication server, receives an original chart, an outline and a timeline corresponding to the delivered physical quantity, and displays an image on the screen. Run,
The original chart generation step includes:
Receiving information about the base point of the observation period and adding time information to the original chart;
Receiving information about the base point of the observed value and adding a waveform value to the original chart;
Storing the attribute information of the physical quantity in association with the original chart,
The timeline generation step includes
Receiving an input of an identification number of a physical quantity, an identification number of a recording sheet, and a recording period;
The recording period when the recording exists in the period from the start of the recording of the physical quantity to the latest recording by searching the recording period corresponding to the recording paper recorded by the data storage means for the identification number of the previous physical quantity And a step of generating a timeline so as to identify a recording incomplete time when no recording exists. A data construction device for digitizing paper media;
A data storage device for storing the constructed electronic data;
A management server for managing digitized data;
A communication server enabling access to the management server and data storage means via the network;
Of the data management system comprising one or more client devices connected to a communication server via a network, a program that causes a computer to function as the management server,
The data construction device includes original chart generation means for acquiring image data from a paper medium on which a physical quantity change with time is recorded, and generating an original chart in which an image of the physical change with time is incorporated,
An outline generating means for generating an outline by reducing the number of pixels of the original chart in the time axis direction;
Means for associating and storing the original chart and the outline in the data storage device;
A timeline generating means for generating a timeline indicating a section on the time axis in which a record of the physical quantity exists;
A data management program that functions as data search means that receives designation of attribute information including a character string related to the physical quantity from the client device through the communication server, searches for the corresponding physical quantity, and displays a list on the screen of the client device.

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