JPH06347367A - Optical pulse tester - Google Patents

Abstract

PURPOSE:To simplify an operating method and to shorten an operating time by conducting a series of repeating operations by one keying operation. CONSTITUTION:Panel keys 2 set measuring conditions for indicating a series of operating sequence by a plurality of manual operations of the key. A command coding processor 3 codes the conditions set by a predetermined key of the panel keys 2 to generate a command. An operation sequence memory 4 stores the coded command according to a set sequence as the series of the operating sequence. Executing key registering means 6 allocates the series of the sequence to an execution key 5 to be registered. An operating sequence execution processor 8 reads the command of the series of the sequence allocated to the key 5 from the memory 4. A command decoding processor 9 decodes the read command. A measuring controller 10 so controls as to measure characteristics of a fiber 17 to be measured according to the sequence decoded by a measuring calculator 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention sends an optical pulse from a light emitting portion to a fiber to be measured, receives reflected light reflected from the fiber to be measured, converts it into an electric signal, and processes the signal to be measured. The present invention relates to an optical pulse tester for performing various measurements such as fiber length and loss.

[0002]

2. Description of the Related Art Conventionally, in the work using an optical pulse tester, there are many simple repetitive works although the contents of the operation differ depending on the field to be used. in this case,
Although various works can be considered, a case will be described as an example where a data acquisition work for a final test of a laying work in which a multi-fiber optical fiber having 100 or more cores is fused every 1 to 2 km.

In this work, the splice loss at all fusion points of one core wire is measured and entered in a list. Also, the length of the entire line is measured, recorded on an external storage element such as a floppy disk, and printed out. The above work is repeated for all cores.

Therefore, in the conventional optical pulse tester, first, the LD is turned on by the [LD] key and the averaging is turned on by the [AVERAGE] key. Next, wait for the averaging to end, and turn off the LD with the [LD] key. Next, in order to set the position of the measurement point, the display position is moved by the [SHIFT] key and the rotary knob is operated to move the cursor 18 to the main marker 19a for determining the measurement point.
a and an auxiliary marker 1 for measuring the connection loss at the measurement point
Select 9b with the [MARKER] key (see FIG. 2). In this state, the connection loss at the measurement point designated by the main marker 19a is read and entered. This operation is repeated by operating the [MARKER] key and rotary knob for the number of fusion points.

Next, when the above work is completed, the [SAVE] key is used for recording, and when the work is completed, the [COPY] key is used for print output. Then, the above series of work was repeated for all the cores.

[0006]

However, in the above-mentioned method, in order to measure the splice loss of one optical fiber, the cursor 18 and the markers 19a and 19b are set at the fusion splicing point (splicing point). After reading the splice loss, the cursor 18 and the markers 19a, 19a and 19b are again displayed at the next fusion point.
It is necessary to repeat the operation of setting b and reading the connection loss.
It took time to set a and 19b, and it was not possible to simultaneously measure the connection loss at a plurality of points.

In addition to the above method, a method called an event function for simultaneously measuring a plurality of measurement points has been proposed. This method automatically detects splice losses above a specified threshold from the measured waveform and lists the measurement results at the detected points.

However, in the above-mentioned method, since the connection loss more than the specified threshold value is automatically detected, the measurement point depends on the measurement waveform, and the point to be measured cannot always be detected. In some cases, it was different from the measurement point desired by the person. Further, since the detected waveform is automatically detected every time, there is a problem that it takes extra processing time for detection and it takes time until the final result is output.

By the way, when an optical pulse tester is used, the same operation is often repeated. However, when one series of work is performed many times, a program or the like can be stored in a memory. It is difficult for the user to set up a program according to the measurement conditions. In addition, when a series of work has a plurality of different contents, programming each is not a simple work.

Since the signal observed by the optical pulse tester is weak, it has a unique function called averaging processing, and it is necessary to perform the averaging to reduce the noise of the measured waveform before the measurement. .

However, in the conventional optical pulse tester, it is necessary to constantly monitor the measured waveform until the noise width becomes appropriate, so that other work cannot be performed during that time.

Further, even when there are a plurality of measurement points, it has been desired to construct an apparatus that does not need to manually repeat the same operation for each measurement point while observing the measurement result as in the conventional case.

Therefore, the present invention has been made in view of the above problems, and an object thereof is to perform a series of repetitive operations with one key operation and to simultaneously measure connection loss at arbitrary plural points. An object of the present invention is to provide an optical pulse tester capable of simplifying the operation method and shortening the working time.

[0014]

In order to achieve the above object, an optical pulse tester according to a first aspect of the present invention is provided with a plurality of keys for manually setting measurement conditions indicating an operation procedure of a series of operations. Means, a measurement operation section for measuring the reflected light from the fiber to be measured and averaging the measurement data to obtain a predetermined characteristic, and a measurement operation section under the condition set by the setting means in the measurement operation section. In an optical pulse tester including a measurement operation unit for performing the measurement, a command processing unit that encodes a measurement condition set by a predetermined key of the setting unit to generate a command, and the coded command is set. A storage unit that stores a series of operation procedures in order, an execution key registration unit that assigns the series of operation procedures to a specific key and registers the execution key, and the above-mentioned description when the execution key is pressed. Reading a set of operating procedures assigned to that key parts are characterized in that an operation procedure execution processing unit allowed to run into the measurement control unit.

Further, in the optical pulse tester according to a second aspect of the present invention, one of the two keys specified by the setting means is set, and the measurement operation section is executing data processing under the condition. , Outputting processing information indicating the progress of the data processing until the other key is set, and performing a series of operations on the command processing unit as well as the commands corresponding to the processing information to the command processing unit. A processing information registration unit that is generated as a procedure command, and the operation key execution processing unit reads a series of operation procedures from the storage unit when the execution key is pressed, and the measurement control unit corresponds to the command of the one key. When the data processing to be performed is being executed, the processing information read by the operation procedure execution processing unit and the information indicating the progress of the data processing from the measurement control unit are compared. Processing, a response information signal is sent to the operation procedure execution processing unit, and the operation procedure execution processing unit causes the operation procedure execution processing unit to perform an operation procedure corresponding to the command of the next other key. An information control unit is provided.

Further, the optical pulse tester according to a third aspect of the present invention stores measurement point registration means for setting and registering a plurality of measurement points corresponding to the distance of the measured fiber, and stores the registered measurement points. A measurement point storage unit is provided for causing the measurement calculation unit to measure and calculate the characteristic at the measurement point.

[0017]

The setting means sets the measurement conditions indicating the operation procedure of a series of operations by manually operating a plurality of keys. The command processing unit codes a measurement condition set by a predetermined key of the setting means to generate a command, and the coded command is stored in the storage unit as a series of operating procedures in the order of setting. The execution key registration means assigns a series of operation procedures stored in the storage unit to a specific key and registers it as an execution key. When the execution key is pressed after the registration of a series of operation procedures is completed, the operation procedure execution processing unit reads out the series of operation procedures assigned to the execution key from the storage unit, and the measurement calculation unit performs measurement according to the operation procedure. The measurement control unit is controlled to measure and calculate the characteristics of the fiber.

At the time of registering a series of operation procedures, the processing information registration means sets one of the two keys specified by the setting means, and the measurement operation section executes data processing under the measurement condition. In the middle, the processing information indicating the progress of the data processing until the other key is set is output. The command processing unit generates a command corresponding to this processing information together with a command corresponding to two keys as a command of a series of operating procedures. When the execution key is pressed and the operation procedure execution processing unit reads out a series of operation procedures from the storage unit and causes the measurement control unit to execute the data processing corresponding to the command of one of the keys, the processing information determination means operates the operation procedure. When the processing information read by the execution processing unit and the information indicating the progress of the data processing from the measurement control unit are compared and matched, a response signal is sent to the operation procedure execution processing unit,
The operation procedure execution processing unit is caused to execute the operation procedure corresponding to the command of the other key.

When setting a series of operation procedures by the setting means, the measurement point registration means registers a plurality of measurement points corresponding to the distance of the fiber to be measured. The measurement point storage unit stores a plurality of registered measurement points, and causes the measurement calculation unit to measure and calculate the characteristics at each measurement point.

[0020]

1 is a block diagram showing a first embodiment of an optical pulse tester according to the present invention.

The optical pulse tester according to this embodiment comprises a measurement / calculation unit 1, a panel key (setting means) 2, which is indicated by a broken line in the figure.
Command coding processing unit (command processing unit) 3, operation procedure memory (storage unit) 4, execution key 5, execution key registration means 6, averaging count control unit (processing information control unit) 7, operation procedure execution processing unit 8 , Command decoding processor 9, measurement controller 10, display processor 11, display 12, interrupt / continue key 1
3, interruption / continuation execution processing unit 14, marker input processing unit 1
5. The marker movement key 16 is provided, and has a function (procedure function) of registering a series of operation procedures (procedures) related to one work and executing the contents.

The measurement / calculation section 1 comprises a light emitting section 1a, a directional coupler 1b, a light receiving section 1c, an amplifying section 1d, a data processing section 1e, an averaging processing section 1f, a waveform memory 1g, and a loss calculating section 1h. ing.

The light emitting section 1a emits a light pulse toward the fiber 17 to be measured at a predetermined timing.

The directional coupler 1b supplies an optical pulse from the light emitting section 1a to the fiber 17 to be measured, and at the same time, the optical pulse and the reflected light (backscattered light and Fresnel reflected light) from the fiber 17 to be measured. Separated and taken out.

The light receiving section 1c receives the reflected light from the fiber under test 17 which is separated and taken out by the directional coupler 1b and converts it into an electric signal.

The amplification section 1d amplifies the electric signal from the light receiving section 1c with a predetermined amplification factor.

The data processing section 1e A / D-converts the electric signal amplified by the amplifying section 1d and adds the data sampled at a predetermined sampling period every time an optical pulse is supplied to the fiber 17 to be measured. .

The averaging processing section 1f determines that the optical pulse is supplied to the fiber 17 to be measured a plurality of times (for example, 256 times).
As the sweep, the added value of the data processing unit 1e is averaged for each sweep.

The waveform memory 1g stores the waveform data averaged by the averaging processor 1f.

The loss calculator 1h reads the waveform data stored in the memory 1g, and determines the connection loss at the measurement point designated by the main marker 19a shown in FIG. 2 or an event marker described later, and the auxiliary markers 19b before and after the measurement point. It is calculated from waveform data.

The panel key 2 is composed of a plurality of keys arranged on the front surface of a device casing (not shown), and by pressing the keys in accordance with an operation procedure related to one work, for example, an LD on / off operation is performed. It is possible to set and input measurement conditions indicating various operation contents at work such as averaging ON operation, measurement result recording operation, and the like.

The command coding processing unit 3 codes the contents of the key signal S1 from the panel key 2 which is pressed according to the operation procedure, writes the command D1 in the operation order memory 4 and stores it. ing.

On the other hand, the command coding processing section 3 transmits the contents of the key signal S1 to the measurement control section 10, controls the measurement calculation section 1 and measures according to the key signal S1.

The execution key 5 is composed of a plurality of function keys arranged on the front surface of the housing of the apparatus like the panel key 2. Further, the execution key registration means 6 assigns and registers a plurality of series of operation procedures stored in the operation procedure memory 4 to a plurality of execution keys 5, respectively. Then, by pressing one of the execution keys 5, the operation procedure execution processing unit 8 reads out a series of operation procedures of the registered contents assigned to the execution key 5 from the operation procedure memory 4,
It is output to the measurement control unit 10 and executed. These operations perform procedural functions.

The averaging number control section 7 comprises an averaging number registering means 7a and an averaging number judging means 7b. The averaging count registration means 7a receives the current averaging count from the measurement control unit 10 as processing information, and
As the decoded content, the command decoding processing unit 9 receives information indicating what operation content is to be executed when the number of times of averaging is performed. In addition, at the time of registering the procedure function, the command coding processing unit 3 operates the key signal S from the panel key 2 after the key operation related to the averaging process.
When 1 is input, the command D1 obtained by coding the key signal S1 is added to the command D2 of the averaging count at that time from the measurement control unit 10 and stored in the operation procedure memory 4.

During execution of the procedure function, the averaging count judging means 7b responds to the response signal S5 when the averaging count from the command decoding processing unit 9 coincides with the averaging count from the measurement control unit 10 and is synchronized. Is output to the operation procedure execution processing unit 8.

The operation procedure execution processing unit 8 uses a FIFO method in the order of storing commands according to a series of operation procedures stored in the operation procedure memory 4 based on the key signal S2 when the execution key 5 is pressed. It is read and output to the command decoding processing unit 9. Further, the operation procedure execution processing unit 8 receives the response signal S5 from the averaging number determination unit 7b, reads the command of the code content to be executed next from the operation procedure memory 4, and outputs it to the command decoding processing unit 9. .

The command decoding processing section 9 decodes the command read by the operation procedure execution processing section 8 and outputs it to the measurement control section 10. Further, the command decoding processing section 9 stores the decoded command in the averaging count registering means 7
It is also output to a.

The measurement control unit 10 controls each unit of the measurement calculation unit 1 on the basis of an instruction from the command coding processing unit 3 at the time of registration and on the basis of a decoded command from the command decoding processing unit 9 at the time of execution. ing. The measurement control unit 10 also reads the waveform data stored in the waveform memory 1g and the connection loss data measured and calculated by the loss measuring unit 1h and outputs the data to the display processing unit 11. Further, the measurement control unit 10 outputs to the averaging count control unit 7 a command of the averaging count currently executed by the averaging processing unit 1f when the operation procedure is registered.

The display processing unit 11 performs waveform processing for displaying the waveform data from the measurement control unit 10 and the data such as the markers 19a and 19b on the display unit 12.

The display unit 12 displays the waveform data waveform-processed by the display processing unit 11, for example, as shown in FIG. 2, and displays the connection loss at each measurement point designated by the main marker 19a intersecting the cursor 18. It is displayed as a list.

The suspend / continue key 13 is pressed when the operation content according to the command stored in the operation procedure memory 4 is interrupted or continued while the execution key 5 is pressed and the procedure function is operating. When the suspend / continue key 13 is pressed while the procedure function is being executed by the dynamically operated key, the suspend / continue execution processing unit 14 sends a command from the operation procedure execution processing unit 8 to the command decoding processing unit 9. Is stopped and the interrupt signal S3 is output to the marker key input processing unit 15. Further, when the suspend / continue key 13 is pressed again, the procedure function is continued from the operation content by the command when the operation was stopped.

The marker key input processing unit 15 receives the main marker 19 in response to the interrupt signal S3 from the interruption / continuation execution processing unit 14.
The marker movement key 16 is controlled so that a and the auxiliary marker 19b can be selected and moved. As a result, the operation procedure does not shift to the next step, and the function of the marker movement key 16 is accepted. At this time, the key signal S4 of the marker movement key 16 is output to the measurement control unit 10 and the measurement control unit 10 Performs measurement at the main marker 19a designated by the marker movement key 16 and displays the result on the display unit 12 via the display processing unit 11. Even during the process interruption, the loss calculation unit 1h continues the averaging process, so
The averaging count can be adjusted by pressing the continue key.

Next, the operation of the optical pulse tester configured as described above will be explained by taking as an example the case where the fusion and fusion shown in FIG. 3 are performed one after another to monitor and record the fiber laying work.

First, the display section 12 when the power is turned on and the light pulse is being supplied from the light emitting section 1a to the fiber 17 to be measured.
While watching the waveform, the [MARKER] key and the rotary knob are operated to align the cursor 18 and the main marker 19a with the position of the fusion point 1 near the base station on the waveform data.

In this state, the procedure function is registered. That is, when the [LD] key of the panel key 1 is pressed, the key signal S1a is changed to the command code processing unit 3
Is coded into a command indicating "LD ON" and stored in the operation procedure memory 4. The key signal S1a at this time is also input to the averaging count registering means 7a.

Next, when the [AVERAGE] key of the panel key 1 is pressed, this key signal S1b is coded by the command coding processing section 3 into a command indicating "averaging on" and stored in the operation procedure memory 4. Remembered. Further, the key signal S1b at this time is the averaging count registering means 7a.
Is also output.

Next, when the [LD] key of the panel key 1 is pressed again, the key signal S1c is coded by the command coding processing unit 3 into a command indicating "LD off". The key signal S1c at this time is also input to the averaging count registering means 7a, and the key signals S1a and S1b have already been input to the averaging count registering means 7a.
Command D2 of current averaging count from measurement control unit 10
Is stored in the operation procedure memory 4 on the command D1 indicating “LD off”. Hereinafter, a command indicating "start recording" by the [SAVE] key of the panel key 1 and a command indicating "start printing after recording is completed" by the [COPY] key are coded and stored in the operation procedure memory 4.

Next, the execution key registration means 6 selects one of the plurality of execution keys 5 for the series of operation procedures stored in the operation procedure memory 4 and assigns it to the execution key 5 to register it. As a result, the series of operation contents related to the work stored in the operation procedure memory 4 can be executed only by pressing one execution key 5, and the registration of the procedure function is completed.
That is, in this example, a series of operation procedures except STEP 5 shown in FIG. 6 is registered.

When one of the execution keys 5 registered in this state is pressed, the operation procedure execution processing unit 8 reads the command stored in the operation procedure memory 4 by the FIFO method and the command decoding processing unit 9 reads it. Output. The command decoding processing section 9 decodes the coded command and outputs it to the measurement control section 10 and the averaging count judging means 7b. As a result, the measurement control unit 10 displays the STEP shown in FIG.
A series of operating procedures except 5 are automatically executed in sequence.

In the above series of operations, the averaging count judging means 7b is operated by the measurement control section 10 via the loss calculating section 1h.
When the number of times of averaging from is matched with the number of times of averaging of the decoded command from the command decoding processing unit 9 and synchronization is achieved, the number of times of averaging is output to the operation procedure processing unit 8 as a response signal. As a result, the operation procedure execution processing unit 8
Reads the next command from the operation procedure memory 4 and outputs it to the command decoding processing unit 9. Hereinafter, the above-described operation is repeated until the commands indicating all the operation contents stored in the operation procedure memory 4 are executed.

The above operation is performed for all cores at each fusion point each time fusion is completed. In this case, the position of the fusion point is adjusted with the [MARKER] key and the rotary knob while observing the waveform on the display unit 12. Thus, the monitoring of each fusion point from the base station, the recording to the FD, and the printout work have been performed for all the cores.

When the suspend / continue key 13 is pressed during the operation of the procedure function described above, the suspend / continue execution processing unit 14 causes the operation procedure execution processing unit 8 to operate.
Command output to the command decoding processing unit 9 is stopped, and the interrupt signal S3 is output to the marker key input processing unit 15. The marker key input processing unit 15 controls the marker moving key 16 so that the markers 19a and 19b can be moved by the interrupt signal S3. In this state, the markers 19a and 19b are moved to desired measurement points. At this time, the operation procedure does not shift to the next step, and the loss calculation unit 1h continues the averaging process, so that the number of averaging can be adjusted.

Therefore, in the above-described embodiment, the operation procedure by the plurality of keys of the panel key 2 which is conventionally performed manually can be performed by one execution key 5, so that the operation time can be shortened. Further, unlike the conventional case, it is not necessary to constantly observe the measurement screen of the display unit 12 while the device is performing measurement, so that another work can be performed in parallel during that time, and the work time can be shortened. Can be planned.
Further, since the person who performs the above-described registration operation may be different from the person who performs work such as laying the fiber 17 to be measured,
If a person who is accustomed to operating the device performs the above-described operation procedure registration operation, even a person who is unfamiliar with the device can perform the work by operating only one execution key 5 after the registration, which improves work efficiency. Can be achieved.

Next, FIG. 4 is a block diagram showing a second embodiment of the optical pulse tester according to the present invention.

The optical pulse tester according to this embodiment is shown in FIG.
Of the optical pulse tester, which is shown by a broken line in the figure, a measurement calculation section 1, a panel key (setting means) 2, a command coding processing section (command processing section) 3, and an operation procedure memory (storage section).
4, execution key 5, execution key registration means 6, averaging number control unit (processing information control unit) 7, operation procedure execution processing unit 8, command decoding processing unit 9, measurement control unit 10, display processing unit 1
1, display unit 12, interruption / continuation key 13, interruption / continuation execution processing unit 14, marker input processing unit 15, marker movement key 1
6, a measuring point registration means 20 and a measuring point registration memory (measuring point storage section) 21 are provided, and in addition to the procedure function described above, a function of newly registering a measuring point (event registration function). )have.

The same components as those of the optical pulse tester of FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.

The measurement point registration means 20 is provided with an event registration key for arbitrarily registering a plurality of measurement points.
In the state of the display screen shown in, after aligning the main marker 19a with a desired measurement point on the waveform data, operate the rotary knob to move the cursor 18 to the main marker 19a,
By pressing the event registration key, the point designated by the main marker 19a is registered as an event marker indicating a measurement point.

In the measurement point registration memory 21, which position (distance) is used as position information when the event marker is registered.
Distance data indicating whether an event marker (corresponding to the main marker 19a) is placed to measure the connection loss is stored for each event marker.

Next, the operation of the optical pulse tester configured as described above will be described by taking as an example the case where the final test data acquisition work of the laying work shown in FIG. 5 is performed.

First, an event marker for executing the event registration function is registered. That is, the main marker 19a is desired at the desired point on the waveform data while observing the waveform data on the display section 12 when the power is turned on and the light pulse is being supplied from the light emitting section 1a to the fiber 17 to be measured. Match fusion point 1 near the station. Next, the rotary knob is operated to move the cursor 18 on the main marker 19a. If you press the event registration key in this state,
The point designated by the main marker 19a is registered as an event marker indicating the measurement point, and the position information at this time is stored in the measurement point registration memory 21. This operation is performed for the number of fusion points. With the above, registration of the event marker is completed.
As a result, at the time of execution, the loss measuring unit 1h measures all connection losses at a plurality of points registered as event markers.

Next, in order to execute the procedure function, a series of operating procedures shown in FIG. 6 is registered. First, when the [LD] key of the panel key 1 is pressed, this key signal S1a is coded by the command coding processing unit 3 into a command indicating "LD on", and the operation procedure memory 4
Memorized in. The key signal S1a at this time is also input to the averaging count registering means 7a.

Next, when the [AVERAGE] key of the panel key 1 is pressed, this key signal S1b is coded by the command coding processing section 3 into a command indicating "averaging on" and stored in the operation procedure memory 4. Remembered. Further, the key signal S1b at this time is the averaging count registering means 7a.
Is also entered.

Next, when the [LD] key of the panel key 1 is pressed again, the key signal S1c is coded by the command coding processing section 3 into a command indicating "LD off". The key signal S1c at this time is also input to the averaging count registering means 7a, and the key signals S1a and S1b have already been input to the averaging count registering means 7a.
Command D2 of current averaging count from measurement control unit 10
Is stored in the operation procedure memory 4 on the command D1 indicating “LD off”. Below, the command to indicate "start recording after reading the splice loss at all fusion points" with the [SAVE] key of panel key 1 and the command to indicate "start printing after recording" with the [COPY] key are coded respectively. It is stored in the operation procedure memory 4.

Next, the execution key registration means 6 selects one of the plurality of execution keys 5 for the series of operation procedures stored in the operation procedure memory 4 and assigns it to the operation key 5 to register it. As a result, the series of operation contents related to the work stored in the operation procedure memory 4 can be executed only by pressing one execution key 5, and the registration of the procedure function is completed.
That is, in this example, the series of operation procedures shown in FIG. 6 is registered.

When one of the execution keys 5 registered in this state is pressed, the operation procedure execution processing unit 8 reads the command stored in the operation procedure memory 4 by the FIFO method and the command decoding processing unit 9 reads it. Output. The command decoding processing section 9 decodes the coded command and outputs it to the measurement control section 10 and the averaging count judging means 7b. As a result, the measurement control unit 10 automatically and sequentially executes the series of operation procedures shown in FIG.

In the above series of operations, the averaging count judging means 7b is operated by the measurement control section 10 via the loss calculating section 1h.
When the number of times of averaging from is matched with the number of times of averaging of the decoded command from the command decoding processing unit 9 and synchronization is achieved, the number of times of averaging is output to the operation procedure processing unit 8 as a response signal. As a result, the operation procedure execution processing unit 8
Reads the next command from the operation procedure memory 4 and outputs it to the command decoding processing unit 9. Hereinafter, the above-described operation is repeated until the commands indicating all the operation contents stored in the operation procedure memory 4 are executed.

By performing the operation according to the above-described series of operation steps once, it is possible to measure the connection loss at all the fusion points of one core wire. Then, by pressing the execution key 5 for all the cords to execute the series of operation procedures, the final test data acquisition work of the laying work is performed for all the cords. Note that FIG. 2 shows an example of measured waveform data on a single-core wire.

Therefore, in the above-described embodiment, once the above-mentioned operation procedure is registered, such as when performing the final test of the laying work of the optical fiber cable, after the registration, only one operation key is pressed. Anyone can work, the operation time can be significantly reduced, and another work can be performed while the device is performing the measurement, so that the work time can be reduced. In addition, since the splice loss of the measured fiber at any of a plurality of registered points can be measured at the same time, the operation method can be simplified, and not only the operation time of the device but also the working time can be further shortened.

Instead of the averaging count control unit 7, S
S / N during averaging using the / N calculation means
It is also possible to detect that it has become and output the number of times at that time as a command.

[0071]

As described above, according to the optical pulse tester of the present invention, the operation procedure with a plurality of keys, which has conventionally been performed manually, can be performed with a single execution key. It can be shortened. Further, unlike the conventional case, it is not necessary to constantly observe the measurement screen of the display unit while the device is performing measurement, so that another work can be performed in parallel during that time, and the work time can be shortened. be able to. Furthermore, since the person who performs the above-described registration operation may be different from the person who performs the work such as laying the fiber under measurement, if a person who is familiar with operating the equipment performs the above-described operation procedure registration operation, After that, even a person unfamiliar with the device can perform the work by operating only one execution key, and the work efficiency can be improved.

Further, according to the optical pulse tester of the third aspect, the connection loss of the measured fiber at a plurality of registered arbitrary points can be measured at the same time, the operation method can be further simplified, and only the operation time of the device can be measured. In addition, the working time can be greatly reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of an optical pulse tester according to the present invention.

FIG. 2 is a diagram showing an example of a display screen on which waveform data is displayed in the optical pulse tester.

[Fig. 3] Diagram showing the connection state of the optical pulse tester when monitoring the installation work and recording work.

FIG. 4 is a block diagram showing a second embodiment of the optical pulse tester according to the present invention.

FIG. 5 is a diagram showing a connection state of the optical pulse tester when performing data acquisition work for the final test of laying work.

FIG. 6 is a diagram showing an example of a series of operation procedures.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Measurement calculation part, 2 ... Panel key (setting means), 3 ... Command coding processing part (command processing part), 4 ... Operation procedure memory (storage part), 5 ... Execution key, 6 ... Execution key registration means, 7 ... Averaging number control unit (processing information control unit), 7a
... averaging number registration means (processing information registration means), 7b ... averaging number determination means (processing information determination means), 8 ... operation procedure execution processing section, 10 ... measurement control section, 17 ... measured fiber, 20 ... measurement Point registration means, 21 ... Measurement point registration memory (measurement point storage unit).

Front page continued (72) Inventor Kiyoshi Iwasaki 5-10-10 Minamiazabu, Minato-ku, Tokyo Anritsu Co., Ltd.

Claims (3)

[Claims] 1. A setting means having a plurality of keys for manually setting measurement conditions indicating a series of operation procedures, and measuring reflected light from the fiber to be measured and averaging the measured data. An optical pulse tester equipped with a measurement calculation unit that obtains predetermined characteristics and a measurement calculation unit that causes the measurement calculation unit to perform measurement under the conditions set by the setting unit, and is set by a predetermined key of the setting unit. A command processing unit that encodes the measured measurement conditions to generate a command, a storage unit that stores the coded commands as a series of operating procedures in the order of setting, and assigns the series of operating procedures to a specific key. Execution key registration means for registering as an execution key, and when the execution key is pressed, a series of operation procedures assigned to the key is read out from the storage unit, and is executed by the measurement control unit. OTDR is characterized in that an operation procedure execution processing section allowed to. 2. Until one of the two keys specified in the setting means is set and the measurement operation section is executing data processing under the condition, and the other key is set. Processing information registration means for outputting the processing information indicating the progress of the data processing, and causing the command processing unit to generate a command corresponding to the two keys together with a command corresponding to the processing information as a command of a series of operating procedures. When the execution key is pressed, the operation procedure execution processing unit reads a series of operation procedures from the storage unit, and causes the measurement control unit to execute data processing corresponding to the command of the one key, When the processing information read out by the operation procedure execution processing unit and information indicating the progress of data processing from the measurement control unit are compared and a match is found, a response signal is transmitted. 3. A process information control unit comprising: a process information determining unit that sends the operation procedure to the operation procedure execution processing unit and causes the operation procedure execution processing unit to perform an operation procedure corresponding to the command of the next other key. The optical pulse tester described. 3. A measurement point registration means for setting and registering a plurality of measurement points corresponding to the distance of the fiber to be measured, the registered measurement points are stored, and the characteristics at the measurement points are stored in the measurement calculation section. The optical pulse tester according to claim 1 or 2, further comprising: a measurement point storage section for performing measurement calculation.