JP2020051848A - Data processing device, data processing method, and data processing program - Google Patents

Abstract

To facilitate analysis based on a plurality of measured data of an optical pulse tester.SOLUTION: A data processing device 10 pertaining to the present disclosure comprises: an event detection unit 121 for detecting an event in an optical fiber on the basis of the measured data of an optical pulse tester 1 that inputs an optical pulse to an optical fiber and measures a temporal change of return light; and a table generation unit 122 for generating, for each detected event, a table that indicates information relating to the event based on the measured data in which the event is detected. When the events detected on the basis of each of a plurality of measured data for one or a plurality of bundled optical fibers are at the same position, the table generation unit 122 registers the events at the same position as one event.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a data processing device, a data processing method, and a data processing program.

  As a measuring device for testing an installed optical fiber for optical communication, an optical pulse is injected into an optical fiber to be measured, and a light for measuring a temporal change of return light (for example, a loss distribution in a longitudinal direction) is measured. There is a pulse tester (OTDR: Optical Time Domain Reflectometer) (for example, see Patent Document 1). A failure point such as a break in an optical fiber, a connection point between optical fibers, a branch point, a fusion point, a bending point, and a termination point (hereinafter, referred to as an “event”) affect the propagation of light in the optical fiber. . Therefore, when laying or maintaining an optical fiber, an event is generally detected by analyzing the measurement data of the optical pulse tester.

JP-A-2006-053542

  In the analysis of the measurement data of the optical pulse tester as described above, it is advantageous if the analysis based on a plurality of measurement data is simplified.

  SUMMARY An advantage of some aspects of the disclosure is to provide a data processing device, a data processing method, and a data processing program that can simplify analysis based on a plurality of measurement data of an optical pulse tester. It is in.

The data processing apparatus according to some embodiments includes an event detection unit that receives an optical pulse on an optical fiber and detects an event in the optical fiber based on measurement data of an optical pulse tester that measures a temporal change of return light. Unit, for each event detected by the event detection unit, based on the measurement data in which the event is detected, comprising a table generation unit that generates a table showing information about the event, the table generation unit, When events detected based on each of the plurality of measurement data for one or a plurality of bundled optical fibers are at the same position, the event at the same position is registered as one event in the table.
According to the data processing device having such a configuration, the user can compare information related to an event detected from a plurality of measurement data without switching the measurement data to be analyzed. . Therefore, the analysis based on the plurality of measurement data of the optical pulse tester can be simplified.

In one embodiment, when an event detected based on each of the plurality of measurement data is registered in the table as one event, the table generation unit may execute the event based on each of the plurality of measurement data on which the event is detected. Is registered in the table.
With such a configuration, even when an event at the same position detected based on each of the plurality of measurement data is registered in the event table as one event, the user can obtain information on the event based on each of the plurality of measurement data. It can be easily confirmed.

In one embodiment, the data processing device further includes a display control unit that displays a table generated by the table generation unit on a display unit.
With this configuration, by displaying the generated table on the display unit, the user can easily confirm the analysis result of the measurement data.

A data processing method according to some embodiments is a data processing method in a data processing apparatus that processes a measurement data of an optical pulse tester that injects an optical pulse into an optical fiber and measures a temporal change of return light. Detecting the event in the optical fiber based on the measurement data, and for each of the detected events, based on the measurement data in which the event is detected, generating a table indicating information about the event, If the events detected based on each of the plurality of measurement data for one or a plurality of bundled optical fibers are at the same position, the event at the same position is registered as one event in the table.
According to the data processing method having such a configuration, the user can perform comparison of information on events detected from a plurality of measurement data without switching the measurement data to be analyzed. . Therefore, the analysis based on the plurality of measurement data of the optical pulse tester can be simplified.

A data processing program according to some embodiments detects an event in the optical fiber based on measurement data of an optical pulse tester that inputs an optical pulse to an optical fiber and measures a temporal change of return light. Processing, for each of the detected events, a process of generating a table indicating information on the events based on the measurement data on which the events are detected, and a plurality of measurements for one or a plurality of bundled optical fibers. When the events detected based on the respective data are at the same position, a process of registering the event at the same position as one event in the table is executed.
According to the data processing program having such a configuration, the user can compare information related to an event detected from a plurality of measurement data without switching the measurement data to be analyzed. . Therefore, the analysis based on the plurality of measurement data of the optical pulse tester can be simplified.

  According to the data processing device, the data processing method, and the data processing program according to the present disclosure, it is possible to simplify analysis based on a plurality of measurement data of the optical pulse tester.

1 is a diagram illustrating a configuration example of a data processing device according to an embodiment of the present disclosure. FIG. 3 is a diagram for describing a method of calculating connection loss by a table generation unit illustrated in FIG. 1. 9 is a flowchart for describing a data processing method in a conventional data processing device. FIG. 11 is a diagram illustrating a display example of an analysis result in a conventional data processing device. FIG. 2 is a diagram illustrating a configuration example of a table list generated by a table generation unit illustrated in FIG. 1. 3 is a flowchart for describing a data processing method accompanying reading of a file in the data processing device shown in FIG. 1. 3 is a flowchart for explaining a data processing method associated with selection of a file to be analyzed in the data processing device shown in FIG. 1.

  Hereinafter, embodiments for carrying out the present disclosure will be described with reference to the drawings. In each drawing, the same reference numerals indicate the same or equivalent components.

  FIG. 1 is a diagram illustrating a configuration example of a data processing device 10 according to an embodiment of the present disclosure. The data processing apparatus 10 according to the present embodiment is configured to input an optical pulse to an optical fiber to be measured, and to measure measurement data of an optical pulse tester 1 for measuring a temporal change (for example, a loss distribution in a longitudinal direction) of return light. Is processed (analyzed). The optical fiber to be measured is, for example, an laid optical fiber. For example, as shown in FIG. 1, the data processing device 10 acquires measurement data from the optical pulse tester 1 via wired communication or wireless communication, and processes the acquired measurement data.

  The data processing device 10 illustrated in FIG. 1 includes an operation receiving unit 11, a calculation unit 12, a display unit 13, and a control unit 14. The data processing device 10 can be realized by, for example, a computer (for example, a personal computer) including a CPU (Central Processing Unit) and a memory for storing various programs and data. When the data processing device 10 is realized by a computer, the arithmetic unit 12 and the control unit 14 are realized by a CPU reading and executing a data processing program stored in a memory.

  The operation receiving unit 11 receives an operation input by the user and outputs a signal corresponding to the input operation to the control unit 14. The operation receiving unit 11 is configured with, for example, buttons, switches, dial knobs, and the like. Further, the operation receiving unit 11 may be configured as a touch panel in which a touch surface of a touch sensor is arranged on a display surface of the display unit 13.

  The calculation unit 12 performs various calculations based on the measurement data of the optical pulse tester 1, and analyzes the measurement data. The calculation unit 12 includes an event detection unit 121 and a table generation unit 122.

  The event detection unit 121 detects an event in the optical fiber to be measured by the optical pulse tester 1 from the measurement data of the optical pulse tester 1. Specifically, the event detection unit 121 detects an event from the intensity waveform of the return light of the optical pulse measured by the optical pulse tester 1.

  The table generation unit 122 generates, for each event detected by the event detection unit 121, an event table indicating information about the event based on the measurement data at which the event is detected. Information on the event includes, for example, the position of the event, connection loss (Splice Loss) in the event, and return loss (Return Loss) in the event. These pieces of information can be calculated by a predetermined calculation based on the measurement data at which the event is detected.

  FIG. 2 is a diagram illustrating an example of the intensity waveform of the return light of the optical pulse detected by the optical pulse tester 1. In FIG. 2, the horizontal axis indicates the distance from the connection point (start point S) between the optical pulse tester 1 and the optical fiber, and the vertical axis indicates the intensity of the return light. The distance from the start point S can be obtained from the time from the input of the pulse light until the return light is detected, and the light propagation speed in the optical fiber.

  FIG. 2 shows an example in which two events are detected between the start point S and the end point E of the optical fiber (at positions denoted by numbers “1” and “2” in FIG. 2). I have. Further, apart from these two events, the terminal point E is detected as an event.

  The table generator 122 calculates connection loss, return loss, and the like based on the intensity waveform shown in FIG. The calculation formulas such as the connection loss and the return loss may be known formulas, and the detailed description is omitted here. In this specification, as an example, a case in which connection loss is calculated will be described.

  The table generation unit 122 generates a first approximation straight line connecting the falling position of the peak at the start point S and the rising position of the peak at event 1 (the event existing at the position numbered “1” in FIG. 2). , A second approximate straight line connecting the falling position of the peak at event 1 and the rising position of the peak at the end point E is determined. Then, the table generation unit 122 calculates the difference between the value of the first approximate straight line and the value of the second approximate straight line at the rising position of the peak in event 1 as connection loss in event 1.

  Referring to FIG. 1 again, the display unit 13 displays the analysis result of the measurement data and the like under the control of the control unit 14. The display unit 13 includes a file list display unit 131, a waveform display unit 132, and an analysis result display unit 133.

  The file list display section 131 displays a list of measurement data files (for example, SOR files) read from the optical pulse tester 1 into the data processing device 10.

  The waveform display unit 132 displays a return light intensity waveform obtained from the measurement data of the file selected via the operation reception unit 11.

  The analysis result display unit 133 displays the analysis result obtained by the calculation based on the measurement data by the calculation unit 12. For example, the analysis result display unit 133 displays the event table generated by the table generation unit 122.

  The control unit 14 controls the operation of the entire data processing device 10 in response to an operation input via the operation reception unit 11. For example, the control unit 14 causes the calculation unit 12 to analyze the measurement data of the file selected by the user, and displays the result on the display unit 13. The control unit 14 includes a file control unit 141, a calculation control unit 142, and a display control unit 143.

  The file control unit 141 manages a file of the measurement data read by the data processing device 10.

  The calculation control unit 142 controls the analysis processing of the measurement data by the calculation unit 12. Specifically, when the operation control unit 142 receives an operation of selecting a file to be analyzed via the operation reception unit 11, the operation control unit 142 instructs the operation unit 12 to analyze the measurement data of the selected file. For example, the arithmetic control unit 142 causes the event detection unit 121 to detect an event from the selected measurement data. Further, the arithmetic control unit 142 causes the table generation unit 122 to generate a table indicating information on the event based on the selected measurement data for each event detected by the event detection unit 121.

  The display control unit 143 controls display on the display unit 13. For example, the display control unit 143 causes the display unit 13 to display a list of measurement data files read by the data processing device 10 and managed by the file control unit 141. The display control unit 143 causes the display unit 13 to display the intensity waveform of the return light indicated by the measurement data. The display control unit 143 causes the display unit 13 to display the event table generated by the table generation unit 122.

  Next, a data processing method in the data processing device 10 according to the present embodiment will be described. First, a data processing method in a conventional data processing device will be described for comparison.

  FIG. 3 is a flowchart for explaining a data processing method in a conventional data processing device.

  A file of measurement data is read from the optical pulse tester 1 to the data processing device (step S11).

  Next, when an operation of selecting a file to be analyzed from the read files is received (step S12), it is determined whether or not the selected file has been analyzed (step S13).

  If the selected file has been analyzed (step S13: YES), the analysis result of the measurement data of the selected file is displayed (step S14).

  If the selected file has not been analyzed (step S13: NO), analysis of the measurement data of the selected file is executed (step S15), and thereafter, the process proceeds to step S14, and the analysis result is displayed. .

  FIG. 4 is a diagram illustrating a display example of an analysis result of measurement data in a conventional data processing device.

  As shown in FIG. 4, in the conventional data processing device, a list 201 of files read by the data processing device is displayed. The user can select a file to be analyzed by selecting a file from the list 201. In the list 201, the selected file is displayed, for example, in a manner different from other files. FIG. 4 shows a state in which the file having the file name “002.SOR” is selected as the analysis target.

  When a file to be analyzed is selected, a waveform 202 that is obtained from the measurement data of the file and that indicates the intensity of the return light according to the distance from the connection point between the optical pulse tester 1 and the data processing device is displayed. . Also, a marker 203 indicating the event is displayed.

  Further, for each event detected from the measurement data of the file selected as the analysis target, an event table 204 indicating information on the event (position of the event, connection loss and return loss at the event, etc.) based on the measurement data is provided. Is displayed.

  As described above, in the conventional data processing apparatus, only the analysis result based on the measurement data of one file selected as the analysis target is displayed. Therefore, in order to perform an analysis based on a plurality of measurement data, an operation of sequentially switching the measurement data to be analyzed is required, and the analysis of the plurality of measurement data is complicated. Further, there is a case where measurement is performed on a single optical fiber under a plurality of conditions or while comparing with past measurement data. In such a case, when an event is detected based on different measurement data, it is desirable that the event at the same position be treated as one event. Even when a plurality of optical fibers are bundled and laid, it is desirable that an event at the same position be treated as one event. However, in the conventional data processing device, as described above, only a measurement result based on one measurement data is displayed, and thus the analysis of a plurality of measurement data is complicated.

  Therefore, in the data processing device 10 according to the present embodiment, when the events detected based on each of the plurality of measurement data for one or a plurality of bundled optical fibers are at the same position, the table generation unit 122 The event at the position is registered in the event table as one event.

  FIG. 5 is a diagram illustrating a configuration example of the event table 300 generated by the table generation unit 122.

  The table generation unit 122 assigns an event number 301 to the event detected by the event detection unit 121 and registers the event in the event table 300. The table generation unit 122 determines that the event detected based on each of a plurality of measurement data for one or a plurality of bundled optical fibers is at the same position (the distance from the connection point between the optical pulse tester 1 and the optical fiber is If they are equal), the event at the same position is registered in the event table 300 as one event, that is, as an event having the same event number.

  Further, for each event with an event number, the table generation unit 122 determines the position of the event, specifically, the distance 302 from the start point S where the optical pulse tester 1 and the optical fiber are connected to the event. Include in table 300.

  In addition, the table generation unit 122 registers the measurement data number 303 indicating the number of each measurement data of the read file in the event table 300.

  In addition, for each event to which an event number is assigned, the table generation unit 122 includes, in the event table 300, the analysis result 304 at the position of the event based on the measurement data on which the event is detected. The table generation unit 122 includes, as the analysis result 304 at the event position, information about the event, such as the connection loss (Splice Loss) and the return loss (Return Loss), in the event table 300.

  When an event detected based on each of the plurality of measurement data is registered as one event in the event table 300, the table generation unit 122 stores information on the event based on each of the plurality of measurement data on which the event is detected in the event table 300. Register with. For example, it is assumed that the event with the event number “4” is detected from the measurement data with the measurement data number “2” and the measurement data with the measurement data number “3”. In this case, the table generation unit 122 compares the analysis result based on the measurement data with the measurement data number “2” and the analysis result based on the measurement data with the measurement data number “3” for the event with the event number “4”. Include in event table 300.

  Note that the table generation unit 122 sets the analysis result blank for measurement data that has not been analyzed (that is, does not input data). By doing so, the user can easily grasp the measurement data that has not been analyzed. In addition, when an event detected based on another measurement data is not detected with respect to certain measurement data, the table generation unit 122 sets the analysis result for the event based on the measurement data to be blank.

  Next, a data processing method in the data processing device 10 according to the present embodiment will be described with reference to flowcharts shown in FIGS. As described above, the data processing device 10 also displays on the display unit 13 a list of files read from the optical pulse tester 1 and a return light intensity waveform indicated in the measurement data. Hereinafter, description of these displays will be omitted, and generation and display of the event table 300 will be described.

  FIG. 6 is a flowchart showing data processing involved in reading a file from the optical pulse tester 1.

  When reading the measurement data file from the optical pulse tester 1 (step S21), the arithmetic control unit 142 instructs the table generation unit 122 to generate the event table 300. Note that the file read from the optical pulse tester 1 is a file of measurement data of one or a plurality of bundled optical fibers. Such a file is, for example, selected by the user and read into the data processing device 10.

  The table generation unit 122 receives the instruction from the arithmetic control unit 142, attaches a measurement data number to each measurement data of the read file, and adds the measurement data number to the end of the event table 300 (Step S22).

  Next, the table generation unit 122 determines whether the measurement data of the read file has been analyzed (step S23).

  If it is determined that the measurement data of the read file has not been analyzed (step S23: NO), the process proceeds to step S26 described later.

  If it is determined that the measurement data of the read file has been analyzed (step S23: YES), the event detection unit 121 detects an event based on the measurement data. Further, the table generation unit 122 registers the event detected by the event detection unit 121 in the event table 300 (Step S24). Here, as described above, when events detected from a plurality of measurement data are at the same position, the table generation unit 122 registers those events as one event in the event table 300.

  Next, for each event registered in the event table 300, the table generation unit 122 stores, in the event table 300, information on the event such as the analysis result of the event, that is, the position of the event, the connection loss in the event, and the return loss in the event. (Step S25).

  Next, the display control unit 143 causes the display unit 13 to display the event table 300 generated by the table generation unit 122 (Step S26). Here, when the measurement data of the read file has not been analyzed, the display control unit 143 causes the display unit 13 to display the event table 300 in which only the measurement data number is added for each measurement data.

  FIG. 7 is a flowchart showing a process involved in selecting a file to be analyzed.

  When receiving the operation of selecting a file to be analyzed via the operation receiving unit 11 (step S31), the arithmetic control unit 142 instructs the arithmetic unit 12 to analyze the measurement data of the selected file.

  The event detection unit 121 and the table generation unit 122 execute the analysis of the measurement data of the selected file in response to the instruction of the arithmetic control unit 142 (Step S32). Specifically, the event detection unit 121 detects an event based on the measurement data of the selected file. In addition, the table generation unit 122 calculates information on the event for each event detected by the event detection unit 121.

  Next, the table generation unit 122 registers the event detected by the event detection unit 121 in the event table 300 (Step S33). Here, as described above, when events detected from a plurality of measurement data are at the same position, the table generation unit 122 registers those events as one event in the event table 300.

  Next, for each event registered in the event table 300, the table generation unit 122 transmits the analysis result of the event, that is, information on the event such as the position of the event, the connection loss at the event, and the return loss at the event. The information is registered in the table 300 (step S34).

  Next, the display control unit 143 causes the display unit 13 to display the event table 300 generated by the table generation unit 122 (Step S35).

  As described above, in the present embodiment, the data processing device 10 includes, based on the measurement data of the optical pulse tester 1, an event detection unit 121 that detects an event in an optical fiber, and an event detection unit 121 for each event detected by the event detection unit 121. And a table generation unit 122 that generates an event table 300 indicating information on the event based on the measurement data on which the event is detected. When an event detected based on each of a plurality of measurement data for one or a plurality of bundled optical fibers is at the same position, the table generation unit 122 registers the event at the same position as one event in the event table 300. I do.

  Further, in the present embodiment, the data processing method in the data processing device 10 includes a step of detecting an event in the optical fiber based on the measurement data (step S32), and the event is detected for each detected event. Generating an event table 300 indicating information on the event based on the measurement data (steps S33 and S34). In the data processing method in the data processing device 10, when events detected based on each of a plurality of measurement data for one or a plurality of bundled optical fibers are at the same position, the event at the same position is one. The event is registered in the event table 300 as an event.

  By registering the event at the same position detected based on each of the plurality of measurement data in the event table 300 as one event, the user can detect from the plurality of measurement data without switching the measurement data to be analyzed. For the performed event, comparison of information on the event can be performed. Therefore, the analysis based on the plurality of measurement data of the optical pulse tester 1 can be simplified.

  Although the data processing device 10 has been described above, a computer may be used to function as the data processing device 10. Such a computer stores a data processing program describing processing contents for realizing each function of the data processing apparatus 10 in a storage unit of the computer, and reads out and executes the data processing program by a CPU of the computer. It can be realized by doing.

  Further, the data processing program may be recorded on a computer-readable recording medium. With such a recording medium, the data processing program can be installed in a computer. Here, the recording medium on which the data processing program is recorded may be a non-transitory recording medium. The non-transitory recording medium is not particularly limited, but may be, for example, a recording medium such as a CD-ROM and a DVD-ROM.

  Although the above embodiments have been described as representative examples, it will be apparent to those skilled in the art that many modifications and substitutions are possible within the spirit and scope of the present disclosure. Therefore, the present disclosure should not be construed as limited by the above-described embodiments, and various modifications and changes can be made without departing from the scope of the claims. For example, a plurality of configuration blocks described in the configuration diagram of the embodiment can be combined into one, or one configuration block can be divided.

DESCRIPTION OF SYMBOLS 1 Optical pulse tester 10 Data processing device 11 Operation reception part 12 Operation part 13 Display part 14 Control part 121 Event detection part 122 Table generation part 131 File list display part 132 Waveform display part 133 Analysis result display part 141 File control part 142 Operation Control unit 143 Display control unit

Claims (5)

An optical pulse is incident on the optical fiber, and based on the measurement data of the optical pulse tester that measures the temporal change of the return light, an event detection unit that detects an event in the optical fiber,
For each event detected by the event detection unit, based on the measurement data in which the event was detected, comprising a table generation unit that generates a table showing information about the event,
When the events detected based on each of the plurality of measurement data for one or a plurality of bundled optical fibers are at the same position, the table generation unit registers the event at the same position as one event in the table. A data processing device characterized in that: The data processing device according to claim 1,
The table generation unit, when an event detected based on each of the plurality of measurement data is registered in the table as one event, information on the event based on each of the plurality of measurement data where the event is detected is stored in the table. A data processing device, characterized in that the data processing device is registered in the data processing device. The data processing device according to claim 1 or 2,
A data processing device further comprising a display control unit that displays a table generated by the table generation unit on a display unit. A data processing method in a data processing device for processing a measurement data of an optical pulse tester for injecting an optical pulse into an optical fiber and measuring a temporal change of return light,
Detecting an event in the optical fiber based on the measurement data;
For each of the detected events, based on the measurement data from which the event was detected, including generating a table indicating information about the event,
When events detected based on each of the plurality of measurement data for one or a plurality of bundled optical fibers are at the same position, the event at the same position is registered as one event in the table. Data processing method. On the computer,
Injecting an optical pulse into the optical fiber, based on measurement data of an optical pulse tester that measures the temporal change of the return light, a process of detecting an event in the optical fiber,
For each of the detected events, a process of generating a table indicating information on the events based on the measurement data in which the events are detected,
When the events detected based on each of the plurality of measurement data for one or a plurality of bundled optical fibers are at the same position, a process of registering the event at the same position as one event in the table is executed. Data processing program.

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