KR101380726B1 - Apparatus for testing performance of line for communication line - Google Patents

Apparatus for testing performance of line for communication line Download PDF

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Publication number
KR101380726B1
KR101380726B1 KR1020120124839A KR20120124839A KR101380726B1 KR 101380726 B1 KR101380726 B1 KR 101380726B1 KR 1020120124839 A KR1020120124839 A KR 1020120124839A KR 20120124839 A KR20120124839 A KR 20120124839A KR 101380726 B1 KR101380726 B1 KR 101380726B1
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South Korea
Prior art keywords
signal
communication line
unit
performance
communication
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KR1020120124839A
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Korean (ko)
Inventor
김현식
김민호
전호익
이선권
홍지태
박재홍
박수훈
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(주)매트론
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/48—Testing attenuation

Abstract

The present invention relates to an apparatus for testing the performance of a communication line, which is capable of correctly testing the performance of a communication line using a signal transmitted along the communication line. The apparatus for testing the performance of a communication line according to the present invention includes: a signal generating unit configured to generate and output a signal for a performance test; a first signal combining unit installed on one side of a performance test section of a communication line in a contact or non-contact type, and delivering a signal outputted from the signal generating unit to the communication line; a second signal combining unit installed on the other side of the performance test section of the communication line in the contact or non-contact type, and collecting and outputting a signal transmitted along the communication line; and a signal analyzing unit configured to analyze the performance of the communication line using a signal outputted from the second signal combining unit. [Reference numerals] (110) Signal generating unit; (120) First signal combining unit; (130) Second signal combining unit; (140) Signal analyzing unit

Description

Performance test equipment for communication line {APPARATUS FOR TESTING PERFORMANCE OF LINE FOR COMMUNICATION LINE}

The present invention relates to a performance test apparatus for a communication line, and more particularly, to a performance test apparatus for a communication line that can accurately test the performance of the communication line by using the characteristics of the signal transmitted along the communication line.

Recently, technology for testing and evaluating the performance of communication lines has been proposed due to the development of communication systems. For example, a power line communication (PLC) -based remote meter reading system has undergone a pilot project under the government's initiative, and is being gradually expanded and built.

However, such a remote meter reading system has a problem that communication is not performed smoothly due to noise and signal attenuation when the modem is installed on the signal line of the meter in the densely populated area of the low voltage line and the dense area of the communication line such as a multi-family house and multi-family house. .

In order to solve this problem, additional solutions such as repeaters and bypass routes are needed in the communication line section where communication is not smooth. To do this, test the performance of communication line such as communication line status, signal loss, and noise level in advance. You should identify and respond accordingly.

However, in the related art, the technology for accurately testing the performance of a communication line has not been proposed, which makes it difficult to efficiently operate a remote meter reading system. In addition, due to the professionalism of the equipment, a tester who does not have a predetermined professional education is almost impossible to test. For this reason, even if a communication line is found to be a problem when the remote metering system is applied, it is difficult to find the exact problem point, which wastes time, manpower and resources in solving the problem.

The present invention has been proposed to solve the problems of the prior art, it is an object of the present invention to provide a communication line performance test apparatus that can accurately test the performance of the communication line without expert knowledge with a simple equipment.

In addition, the present invention is fastened to the communication line is possible to apply and receive the signal, there is another object to provide a communication line performance test apparatus that there is no risk of safety accident even in a live communication line.

Furthermore, another object of the present invention is to provide a communication line performance test apparatus that can be utilized as various status information monitoring systems throughout the communication line.

Performance test apparatus of the communication line according to the present invention for achieving the above object,
A signal generation unit including a data output unit for outputting test data for a communication line and a first modem unit for converting and outputting test data output from the data output unit into a performance test signal; A first signal coupling unit installed at one side of the performance test section of the communication line in a contact or non-contact manner and transferring a signal output from the signal generator to the communication line; A second signal coupling part installed at the other side of the performance test section of the communication line in a contact or non-contact manner and collecting and outputting a signal transmitted along the communication line; And a signal analyzer configured to analyze the performance of the communication line by using the signal output from the second signal combiner, wherein the signal analyzer receives the signal output from the second signal combiner and converts the signal into digital data. And a data processing unit for measuring a communication speed of the communication line using the data output from the second modem unit and analyzing the performance of the communication line from the communication speed.

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In the present invention, the first and second signal coupling portion, the core implemented in a toroidal shape; A case to receive the core; A coil wound around the core; And signal input / output terminals for connecting both ends of the coil to an external device.

In the present invention, the signal analysis unit, a waveform extraction unit for extracting a waveform from the signal received by the second signal combination unit; A waveform storage unit for storing the waveform of the signal generated by the signal generator; A waveform comparing unit comparing the extracted waveform with the stored waveform; And a performance evaluation unit for analyzing the performance of the communication line corresponding to the change of the two waveforms as a result of the comparison.

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In the present invention, the data processing unit, the database for storing the performance information for each communication speed of the communication line; A communication speed measuring unit measuring a communication speed of the communication line from data transmitted from the second modem unit by using a previously stored communication speed measuring program; A program storage unit for storing the communication speed measurement program; A search unit for searching the database for performance information of a communication line corresponding to the measured communication speed; And a display unit for displaying the retrieved performance information.

In the present invention, the performance information of the communication line includes information of the state of the communication line, signal loss, noise level.

In the present invention, the data processing unit further includes an input unit for receiving a test period and a test time for the performance of the communication line.

According to the performance test apparatus of the communication line according to the present invention having the configuration described above has the following effects.

According to the present invention, it is possible to accurately test the performance of a communication line at a relatively low cost and simple configuration.

According to the present invention, it is possible to prevent the risk of a safety accident in the communication line in the live state because it is possible to apply and receive a signal is fastened to the communication line.

1 is a block diagram of a communication line performance test apparatus of the present invention.
Figure 2 is an illustration of the configuration of the first and second signal combining portion of the present invention.
Figure 3 is a detailed block diagram of a data processing unit according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a block diagram of a communication line performance test apparatus according to an embodiment of the present invention.

As shown in FIG. 1, the performance test apparatus 100 for a communication line according to an embodiment of the present invention includes a signal generator 110, a first signal combiner 120, a second signal combiner 130, and It is configured to include a signal analysis unit 140.

The signal generator 110 generates and outputs a predetermined performance test signal for testing the performance of the communication line 10. Such a signal is preferably an analog signal having a specific type of waveform as an electrical signal. In one embodiment of the present invention, the signal generator 110 may use, for example, a function generator.

The first signal combiner 120 and the second signal combiner 130 are respectively installed in the communication line 10. For example, the first signal coupling unit 120 and the second signal coupling unit 130 are preferably installed at both ends of the performance test section to test the performance in the communication line 10. As such, the first signal coupling unit 120 installed at one end of the performance test section in the communication line 10 transfers the signal transmitted from the signal generator 110 to the communication line 10. As a result, such a signal is transmitted (propagated) along the communication line 10. In this case, the second signal combiner 130 collects the signal transmitted along the communication line 10 and transmits the signal to the signal analyzer 140.

The first signal coupling unit 120 and the second signal coupling unit 130 according to the embodiment of the present invention are implemented in a contact or non-contact manner and are coupled to the communication line 10 in a contact or non-contact manner. For example, in the case of a contact type, a metal terminal directly contacts the communication line 10 to transmit a specific signal to the communication line 10, and collects a signal transmitted along the communication line 10. In addition, in the case of a non-contact type, a specific signal is transmitted to the communication line 10 by using an electromagnetic induction principle, and the signal transmitted along the communication line 10 is coupled and collected. To this end, in the case of the non-contact type, it is preferable that the communication line 10 is configured in a toroid shape in which a hollow is formed to penetrate the inside thereof. As such, the communication line 10 in the present exemplary embodiment also serves as a signal transmission communication line for transferring signals between the first and second signal coupling units 120 and 130.

The signal analyzer 140 determines the performance of the communication line 10 using the signal output from the second signal combiner 130. In particular, the signal processor 140 according to the present invention compares the waveform of the signal received from the second signal combiner 130 and the waveform of the signal generated by the signal generator 110 with each other and changes the communication line according to the change of the waveform. The performance of the furnace 10 is analyzed. This is used to change the waveform of the signal transmitted along the communication line 10 according to the performance of the communication line 10, that is, the state of the communication line 10, the signal loss, the noise level. In other words, the waveform of the signal generated by the first signal generator 110 and transmitted along the communication line 10 according to the performance of the communication line 10 and the change of the waveform of the signal received by the signal analyzer 140. By analyzing the performance of the communication line 10. Therefore, in the present invention, it is possible to test the performance of the communication line 10 from the waveform change of the signal measured in the communication line 10. To this end, the relationship between the waveform change and the performance of the signal in the communication line 10 is set in advance and stored. In one embodiment of the present invention, the signal analyzer 140 may include, for example, a wave analyzer.

2 is a block diagram of a signal generator and a signal analyzer according to another embodiment of the present invention.

2, the signal generator 110 according to another embodiment of the present invention includes a data output unit 111 and the first modem unit 112, the signal analysis unit 140 is a second It comprises a modem unit 141 and a data processing unit 142. This configuration is applied when the first and second signal coupling parts 120 and 130 are installed in a non-contact manner.

The data output unit 110 generates and outputs test data in order to test the performance of the communication line 10. The test data is preferably implemented as digital data. For example, such test data may be implemented as packet data. In the present embodiment, the data output unit 111 is a portable computer, for example, it is preferably implemented as a notebook PC, netbook PC and the like.

The first modem unit 112 receives the test digital data transmitted from the data output unit 111 and converts it into an analog signal having a specific type of waveform. For example, the first modem unit 112 converts the test data into an electrical signal and outputs the electrical signal.

The second modem unit 141 receives a signal transmitted from the second signal combiner 130 and transmits the signal to the data processor 142. At this time, the second modem unit 141 converts the analog signal received from the second signal combiner 130 and transmits the digital data to the data processor 142.

The data processor 142 determines the performance of the communication line 10 using the data transmitted from the second modem unit 141. In particular, the data processor 142 according to the present invention measures the communication speed of the data transmitted through the communication line 10 using a dedicated program pre-installed therein. At this time, this communication speed is measured differently depending on the performance of the communication line (10). For example, the communication speed is determined according to the state of the communication line, signal loss, noise level, and the like. Therefore, in the present invention, it is possible to test the performance of the communication line 10 from the communication speed measured in the communication line 10. To this end, the relationship between the communication speed and the performance in the communication line 10 is set in advance and stored. In particular, the relationship with the communication speed is stored in advance for each element of the performance such as the state of the communication line, signal loss and noise level. Thus, the data processing unit 142 calculates the communication speed of the communication line 10 using the data transmitted from the second modem unit 141, and according to the calculated communication speed in the communication line 10 It is to be able to grasp the performance of the communication line (10). In the present invention, the test cycle and the test time can be arbitrarily changed according to the user's setting, and the test results can be automatically stored as a log file to be data.

3 is an exemplary view of a performance test apparatus for a communication line according to an embodiment of the present invention, Figure 4 is an exemplary view of a performance test apparatus for a communication line according to another embodiment of the present invention.

In FIG. 3, an example in which contact first and second signal coupling units 120a and 130a are installed in a communication line 10 in a contact manner is illustrated. In another example of FIG. 4, non-contact first and second signals are illustrated. An example in which the coupling parts 120b and 130b are installed in a communication line 10 in a non-contact manner is shown.

As in the example of FIG. 3, the first and second signal coupling units 120a and 130a are directly connected to the communication line 10 in a contact manner. The first signal combiner 120a directly transmits a signal of a specific waveform output from the signal generator 110 to the communication line 10. This signal is transmitted along the communication line 10. Thereafter, the second signal combiner 130a receives the signal transmitted along the communication line 10 and transmits the signal to the signal analyzer 140 at the rear end. The signal analyzer 140 analyzes the performance of the communication line 10 by using a change between the waveform of the signal received by the second signal combiner 130a and the waveform of the signal generated by the signal generator 110. .

In addition, as in the other example of FIG. 4, the first and second signal coupling units 120b and 130b are installed in the communication line 10 in a non-contact manner. At this time, these signal coupling units (120b, 130b) is implemented in a toroidal shape is installed so that the communication line 10 penetrates the inside thereof. In other words, these signal coupling units 120b and 130b are installed to surround the communication line 10 in a non-contact manner. In this case, when the first and second signal combiners 120b and 130b are implemented in a non-contact manner, the signal generator 110 includes a data output unit 110 and a first modem unit 112 and analyzes signals. The unit 140 includes a second modem unit 141 and a data processor 142. As a result, the data output from the data output unit 111 is converted into a signal of a specific waveform in the first modem unit 112 and the first signal combiner 120b transmits the signal of the specific waveform to the communication line 10. Done. This signal is transmitted along the communication line 10. Thereafter, the second signal combiner 130b receives a signal transmitted along the communication line 10 and is transmitted to the second modem unit 141 at the rear end. The second modem unit 141 converts the signal into digital data and transmits the signal to the data processor 142. The data processor 142 calculates a communication speed of the communication line 10 from the corresponding data to analyze the performance of the communication line 10.

5 is an exemplary view of the configuration of the first and second signal coupling portion of the present invention.

As shown in FIG. 5, the signal coupling units 120 and 130 of the present invention include a core 131, a case 132, a coil 133, and a signal input / output terminal 134. Since the first and second signal coupling units 120 and 130 have the same structure as the non-contact structure, the first signal coupling unit 120 will be described below for convenience of description.

In the exemplary diagram of FIG. 5, (a) is a view for accommodating the core 121 in the case 122, and (b) is a molded part of the case 122 and then coupled to the communication line 10. (C) is an internal sectional view after being cut vertically.

The core 121 is implemented in a toroid shape having a hollow portion therein. In the present invention, a plurality of magnetic cores 121 are accommodated in the case 122. The case 122 is composed of an inner case 122a and an outer case 122b. The inner case 122a has a circular hollow portion for inserting the communication line 10 in the longitudinal direction to the central portion. The toroidal core 121 is positioned between the inner case 122a and the outer case 122b. The core 121 is preferably made of a material having high frequency characteristics with low insertion loss and transmission loss in order to exhibit excellent electrical characteristics in consideration of permeability and resistivity characteristics. In addition, since the core 121 transmits a signal to the communication line 10 using the electromagnetic induction principle, the signal transmission characteristic depends on the electrical characteristic. Therefore, in the present embodiment, the core 121 includes a ferrite component, for example. Ferrite has the advantage of low power loss and high resonant frequency. However, the present invention is not limited thereto, and a ferrite material and another metal material may be fused to each other. In particular, since the metal material has an advantage of having a high permeability and magnetic flux density, in the present invention, an amorphous material which can fuse the advantages of the ferrite material and the metal material may be used.

The coil 123 is formed to wind the core 121. In the present invention, the coil 123 is preferably wound 1 to 2 times. However, the present invention is not limited thereto and may be changed depending on the material and signal characteristics of the core 121.

The signal input / output terminal 124 connects both ends of the coil 123 with an external device.

The signal coupling units 120 and 130 configured as described above are cut in half in order to be fastened to the communication line 10, and then coupled again to surround the communication line 10.

As described above, the first and second signal coupling units 120 and 130 of the present invention are coupled to the communication line 10 in a contact or non-contact manner. In the case of the contact type, the communication line 10 is directly contacted to transmit and collect signals. In case of non-contact type, the basic principle of inductor is used. That is, the coil 123 is wound around the core 121 to form an inductor, and the coupling of signals is performed by the electromagnetic induction principle (eg, Faraday's law) of the core 121. When a signal of a specific frequency band is applied through the signal input / output terminal 124 in the first and second signal combiners 120 and 130 and a signal flows in the corresponding frequency band on the communication line 10, the signal is transmitted through electromagnetic induction. The signal is output to the signal input / output terminal 124. The signal coupling unit 120 or 130 does not need to cut off the power of the communication line 10 or separately process the communication line 10, and the corresponding communication line through a simple clamping operation on the outside of the communication line 10. It can be fastened to the furnace 10. In addition, since the inductor is a basic element, regardless of the voltage magnitude of the communication line, the current magnitude of the communication line is affected.

6 is a detailed block diagram of a signal analysis unit according to an embodiment of the present invention.

Referring to FIG. 6, the signal analyzer 140 according to the present invention includes a waveform extractor 151, a waveform storage unit 152, a waveform comparator 153, and a performance evaluation unit 154. The signal analyzer 140 may be applied to, for example, a performance test apparatus for a contact communication line.

The waveform extractor 151 extracts a waveform from the signal output from the second signal combiner 130. The waveform storage unit 152 stores the waveform of the signal generated by the signal generator 110 in advance. The waveform comparator 153 compares the waveform extracted from the signal output from the second signal combiner 130 and the waveform of the signal from the signal generator 110 previously stored in the waveform storage unit 152 as described above. By comparison, the waveform changes. Thereafter, the performance evaluation unit 154 is to test the performance of the communication line 10 by using the change in the waveform derived as described above.

7 is a detailed block diagram illustrating a data processor of a signal analyzer according to another exemplary embodiment of the present invention.

As shown in FIG. 7, the data processing unit 142 according to the present invention includes a database (DB) 1421, a communication speed measuring unit 1422, a program storage unit 1423, a search unit 1424, and a display unit 1425. It is configured to include). The data processor 142 may be applied to, for example, a performance test apparatus for a non-contact communication line.

Performance information is stored for each communication speed of the communication line 10 in the database (DB: database) 1421. Preferably, the database 1421 stores various performance information such as the state of the communication line, the signal loss, and the noise level for each communication speed of the plurality of communication lines 10. This is because the performance of the communication line 10 has a close correlation with the communication speed, so that performance information on the communication speed is stored in the database 1421 using this correlation.

The communication speed measuring unit 1422 measures the communication speed in the communication line 10 by using data transmitted from the second modem unit 141. This communication speed can be measured by using a dedicated program.

The program storage unit 1423 stores the above-mentioned dedicated program for measuring the communication speed. Such a dedicated program measures the communication speed of the communication line 10 from the digital data for the signal transmitted along the communication line 10. The program of the present embodiment may be implemented in software for a computer.

The search unit 1424 searches the database 1421 for performance information corresponding to the communication speed of the communication line 10 measured by the communication speed measurer 1422. Specifically, among the performance information for each communication speed stored in the database 1421, performance information matching the communication speed of the communication line 10 measured by the communication speed measuring unit 1422, preferably a communication line Performance information such as the state, signal loss, and noise level is retrieved.

The display unit 1425 displays various types of information input and processed by the data processor 1421. In particular, the performance information of the communication line 10 searched by the search unit 1424 is visually displayed. The display unit 1425 is implemented with, for example, a liquid crystal display (LCD).

Although not shown in the drawing, the data processor 142 may further include an input unit (not shown) for receiving various commands from a user. Through such an input unit it is possible to adjust the test cycle and test time of the communication line (10).

Hereinafter, with reference to the accompanying drawings will be described the operation of the communication line performance test apparatus according to the invention.

First, in the case of the performance test apparatus of the contact communication line, the performance test section is set in the communication line 10 to test the performance. A pair of contact signal coupling parts 120a and 130a are installed in direct contact with both ends of the set performance test section. Thereafter, the signal generator 110 generates and outputs a test signal having a specific waveform for the performance test of the communication line 10. The signal output as described above is input to the first signal coupling part 120a of the rear stage. The first signal coupling unit 120a transmits the corresponding signal to the communication line 10. The signal transmitted as described above is transmitted along the communication line 10 to reach the second signal coupling unit 130a installed at the other end of the communication line 10. The second signal combiner 130a collects the signal transmitted along the communication line 10 and transmits the signal to the signal analyzer 140. The signal analysis unit 140 extracts the waveform of the corresponding signal using the received signal, and then performs the performance of the communication line 10 using the change between the waveform of the extracted signal and the waveform of the signal generated by the signal generator 110. Analyze

As described above, in the performance test apparatus of the contact communication line according to an embodiment of the present invention, a pair of contact signal coupling units 120a and 130a are directly coupled to the performance test section of the communication line 10 in the section. By measuring the change in the waveform and to determine the performance of the communication line 10 corresponding to the change in the measured waveform.

Next, in the case of the performance test apparatus of the contactless communication line, after setting the performance measurement section of the communication line 10 to measure the performance, a pair of non-contact signal coupling unit (120b, 130b) at both ends of the performance measurement section Install). Thereafter, the data output unit 111 of the signal generator 110 outputs test digital data for performance measurement of the communication line 10. The data output as described above is input to the first modem unit 112. The first modem unit 112 converts the digital data into an analog signal and transmits it to the first signal combiner 120b installed at one end of the communication line 10.

The first signal combiner 120b transfers the input signal to the communication line 10 through a coupling process. As such, the signal transmitted to the communication line 10 is transmitted along the corresponding communication line 10 to reach the second signal coupling unit 130b installed at the other end of the communication line 10. Then, the second signal combiner 130b collects the signal transmitted along the communication line 10 through a coupling process and transmits the signal to the second modem unit 141 of the signal analyzer 140. The second modem unit 141 converts the signal back into digital data and transmits the signal to the data processor 142.

The data processor 142 measures the communication speed of the communication line 10 by using the received digital data, retrieves and displays the performance of the communication line 10 corresponding to the measured communication speed from the database 1421. Do it.

As described above, in the performance test apparatus for a non-contact communication line according to another embodiment of the present invention, a pair of non-contact signal coupling units 120b and 130b are contactlessly coupled to a test section of the communication line 10 in a performance test section. By measuring the communication speed of the and grasping the performance of the communication line 10 corresponding to the measured communication speed to be able to test the performance according to any period at any time.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments. Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope of the appended claims, The genius will be so self-evident. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Communication lines require periodic performance tests. Therefore, the present invention is composed of a simple configuration of the device can accurately measure the performance of the communication line even without expert knowledge and there is no risk of safety accident even in the live state can be very usefully applied to the field of the performance test of the communication line.

110: data output unit 111: data output unit
112: first modem unit 120: first signal coupling unit
121: magnetic core 122: case
122a: inner case 122b: outer case
123: coil 124: signal input and output terminal
130: second signal combiner 140: signal analyzer
141: second modem unit 142: data processing unit
1421: Database (DB) 1422: Communication speed measuring unit
1423: Program storage unit 1424: Search unit
1425: display unit

Claims (8)

A signal generation unit including a data output unit for outputting test data for a communication line and a first modem unit for converting and outputting test data output from the data output unit into a performance test signal;
A first signal coupling unit installed at one side of the performance test section of the communication line in a contact or non-contact manner and transferring a signal output from the signal generator to the communication line;
A second signal coupling part installed at the other side of the performance test section of the communication line in a contact or non-contact manner and collecting and outputting a signal transmitted along the communication line; And
A signal analyzer to analyze the performance of the communication line by using the signal output from the second signal combiner; Lt; / RTI >
The signal analyzer may measure a communication speed of the communication line by using a second modem unit for receiving a signal output from the second signal combiner and converting the signal into digital data, and data output from the second modem unit. And a data processing unit for analyzing the performance of the communication line from the communication speed. The method of claim 1, wherein the first and second signal coupling unit,
A core embodied in a toroidal shape;
A case to receive the core;
A coil wound around the core; And
Signal input and output terminals for connecting both ends of the coil to an external device; Performance test apparatus of a communication line comprising a. The method of claim 1, wherein the signal analysis unit,
A waveform extractor extracting a waveform from the signal received by the second signal combiner;
A waveform storage unit for storing the waveform of the signal generated by the signal generator;
A waveform comparing unit comparing the extracted waveform with the stored waveform; And
A performance evaluation unit for analyzing a performance of a communication line corresponding to the change of the two waveforms as a result of the comparison; Performance test apparatus of a communication line comprising a. delete delete The method of claim 1, wherein the data processing unit,
A database storing performance information for each communication speed of the communication line;
A communication speed measuring unit measuring a communication speed of the communication line from data transmitted from the second modem unit by using a previously stored communication speed measuring program;
A program storage unit for storing the communication speed measurement program;
A search unit for searching the database for performance information of a communication line corresponding to the measured communication speed; And
A display unit displaying the retrieved performance information; Performance test apparatus of a communication line comprising a. The method according to claim 6,
The performance information of the communication line is a performance test apparatus of the communication line, characterized in that the information including the status of the communication line, signal loss, noise level. The method of claim 6, wherein the data processing unit,
And an input unit for receiving a test cycle and a test time for the performance of the communication line.
KR1020120124839A 2012-11-06 2012-11-06 Apparatus for testing performance of line for communication line KR101380726B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101606418B1 (en) * 2014-11-21 2016-03-25 재단법인한국조선해양기자재연구원 Apparatus for performance test of power line communication

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990077044A (en) * 1996-11-01 1999-10-25 리챠드 에이. 코벨 Non-intrusive powerline communication system
JP2002214262A (en) * 2001-01-19 2002-07-31 Hioki Ee Corp Transmission characteristic measuring apparatus for cable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990077044A (en) * 1996-11-01 1999-10-25 리챠드 에이. 코벨 Non-intrusive powerline communication system
JP2002214262A (en) * 2001-01-19 2002-07-31 Hioki Ee Corp Transmission characteristic measuring apparatus for cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101606418B1 (en) * 2014-11-21 2016-03-25 재단법인한국조선해양기자재연구원 Apparatus for performance test of power line communication

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