KR200241603Y1 - Integrated communication line testing apparatus - Google Patents

Abstract

The communication line test apparatus of the present invention is for integrally testing the voice line and the data line of the communication line, and the communication line consisting of the voice line and the data line is connected to the voice line and the data line according to the state of the voice line and the data line. A subscriber line selection unit for selecting a data line, a subscriber identification unit and a call test unit for conducting a call with the subscriber after confirming the subscriber's number in case of a line defect report of the subscriber, and a voice line by the subscriber line selection unit If is selected, the voice line tester for measuring the voltage, line capacity and resistance of the voice line to test whether the line is abnormal based on the measured value, and if the data line is selected by the subscriber line selector To measure the resistance of the data line and the noise voltage value and to test the abnormality of the line based on the measured value. A test result from the test unit and the track foundation, the voice line unit and the data test line test section is inputted is composed of a microcomputer for analyzing and managing more of the speech line and the data line.

Description

Integrated Communication Line Tester {INTEGRATED COMMUNICATION LINE TESTING APPARATUS}

The present invention relates to a test apparatus for a telephone line, and more particularly, to an integrated communication line test apparatus capable of integrally testing a voice line of a telephone subscriber and a data line of a high speed data communication subscriber.

Telephone has been popular with people as the most basic means of communication since its inception by Alexander Graham Bell, and is widely used throughout the world. At present, as mobile phones are deposited by wireless communication, general telephones using communication lines are showing a limit to their spread. Therefore, there is a need to find a way to use the communication lines hypothesized around the world, and now, as such a method, the telephone communication line is used as an internet network, which is a kind of data communication network.

The Internet was originally created as the ARPANET for the exchange of information between universities in the United States, but it has become increasingly possible to exchange information globally. The Internet was originally created for the purpose of exchanging academic information among scholars, but now it is in the limelight as a means of data communication with numerous computers connected around the world. With the development of computer and network technology, the Internet has become an e-mail service, remote login (Telnet), file transfer protocol, information retrieval, usenet news, video conferencing, internet telephony. There are a number of services such as internet telephones.

Moreover, in recent years, with the development of communication technology, high-speed Internet services using telephony lines such as ISDN and ASDL have been actively provided, and many households have not only subscribed to these high-speed Internet services, but have also expanded their subscription trends. It's happening.

On the other hand, communication lines are connected to subscribers through underground pipelines and ground poles through complex connection processes at the exchange offices of telephone stations, so that various factors such as induction noise, line quality deterioration, and line quality deterioration due to deterioration of line quality from surrounding environment Line obstacles occur. In order to maintain the best quality of voice communication service or high-speed information communication service of such communication line, it is necessary not only to check the communication line from time to time, but also to test the communication line for quick action in case of a failure of the communication line. You must find it.

In general, the conventional fault handling of the communication line was tested at the line test bench for abnormality of the line when the fault report of the subscriber or the fault of the line was recognized. 1 shows a conventional test apparatus for checking an abnormality of a communication line. As shown in the figure, the communication line 1 is typically composed of a voice line 1a for carrying out a telephone call and a data line 1b for performing data communication such as high-speed Internet, and the voice line 1a. Is connected to the telephone subscriber's telephone 4 and the data line 1b is connected to the terminal 6 of the data communication subscriber, for example a computer. The audio line 1a and the data line 1b are connected to the audio line test bench 3 and the data line test bench 5, respectively.

The audio line test bench 3 and the data line test bench 5 test the audio line 1a and the data line 1b, respectively. That is, when the voice communication failure is received, the voice line test bench 3 tests the voice line 1a to determine whether there is an error, and when the data communication failure is received, the data line test bench 5 performs the data line 1b. Test and determine if there is any abnormality. As described above, the management of the communication line and the test of the abnormality were conventionally performed separately through the voice line test bench 3 and the data line test bench 5. Therefore, the management of the communication line was not only cumbersome, but also caused a waste of manpower.

The present invention has been made to solve the above problems, and provides an integrated communication line test apparatus capable of integrally executing the failure test of the corresponding line by selecting the voice line and the data line of the communication line by the subscriber line selecting means. It aims to do it.

In order to achieve the above object, the integrated communication line test apparatus according to the present invention is connected to the communication line consisting of a voice line and a data line to select the voice line and the data line according to the state of the voice line and data line A subscriber line selection unit, a subscriber identification unit and a call test unit that conducts a call with the subscriber after confirming the subscriber's number when the subscriber's line defect report is made, and a voice line when the voice line is selected by the subscriber line selection unit. A voice line tester for measuring whether the line is abnormal based on the measured value by measuring the voltage, the line capacity and the resistance of the data line, and the resistance value of the data line when the data line is selected by the subscriber line selector. A data line test unit for measuring an excess noise voltage value and testing whether the line is abnormal based on the measured value, and the voice A test result from the test unit and the data line is input to the test unit consists of a microcomputer to analyze and manage more of the speech line and the data line.

The voice line test unit is a voltage measuring unit for measuring the voltage of the voice line, a line capacity measuring unit for measuring the capacity of the line, resistance analysis automatic switching unit which is switched according to the resistance value by measuring and analyzing the resistance of the line, measurement When the measured resistance value is several kΩ or less, it is switched by the resistance analysis automatic switching unit and measures the resistance by measuring the resistance of the loop resistance section, and when the measured resistance value is several tens of MΩ or less, the resistance analysis automatic clause It consists of an insulation resistance measuring part which switches over by an affected part and measures the abnormality of a line by measuring the said resistance value.

The data line test unit may further include a resistance measuring unit for measuring a resistance of the data line to determine whether there is an abnormality in the line, an insulation resistance boosting unit for boosting a voltage to a high voltage to measure resistance of a data line having a resistance of several hundred MΩ or more; TEL filter for filtering the unnecessary frequency of the AC component of the noise voltage from which the DC component inputted through the voice line is removed and evaluating the state of the voice line, and the noise voltage of the noise voltage from which the DC component inputted through the data line is removed. A G-filter part for evaluating the state of the data line by filtering out unnecessary frequencies of AC components, a balance evaluation part for evaluating the balance of the data line, and a resistance measuring part, a G-filter part, and a It is composed of a line measuring unit for detecting the presence or absence of abnormality in the current data line based on the input value.

1 is a conceptual diagram of a conventional communication line test apparatus.

2 is a conceptual diagram of an integrated communication line test apparatus according to the present invention.

3 is a block diagram showing the structure of an integrated communication line test bench according to the present invention.

4 is a block diagram showing the structure of a call test unit of FIG.

FIG. 5 is a block diagram illustrating a structure of a sound line test unit of FIG. 3. FIG.

6 is a block diagram showing the structure of a data line test unit of FIG.

Explanation of symbols on the main parts of the drawings

1: communication line 4: telephone

6 Computer 8: Integrated Test Bench

12: subscriber line selection unit 16: subscriber confirmation unit

22: microcomputer 24: display unit

26: output unit 30: currency test unit

40: audio line test unit 50: data line test unit

Hereinafter, with reference to the accompanying drawings will be described in detail the communication line test apparatus according to the present invention. In this case, the same configuration as the conventional technology shown in FIG. 1 will be described with reference to the same reference numerals.

2 is a view conceptually showing a communication line test apparatus of the present invention. As shown in the figure, the communication line test apparatus of the present invention is provided with an integrated test bench 8, compared to the audio line 1a and the data line 1b separately managed, and thus the voice line 1a and the data line. Integrated management of (1b). To this end, the communication line test apparatus of the present invention includes a means for selecting a line subscribed by the user. Therefore, the audio line and the data line can be selected in accordance with the state of the communication line to check and manage the abnormality. In addition, the integrated test bench of the present invention is provided with a microcomputer to identify and manage the state of the voice line and data line. The microcomputer determines whether the specific line is defective or not based on the input data, and outputs the determination result to the user.

In the integrated test bench of the present invention, both the subscriber station line and the subscriber line are connected. Therefore, the subscriber line and the subscriber station line can be tested as necessary.

In general, since the conventional test bench performs a 2-wire test, the track assistant should be set aside for the trunk line and the subscriber line to be tested. Since the circuit was tested, the work efficiency was reduced. In the present invention, it is possible to improve the work efficiency by performing the switching of the track on the test bench as described above.

3 shows the structure of such an integrated test bench. As shown in the figure, the integrated test bench has a subscriber line selector 12 for connecting the subscriber station line and the subscriber line and selecting the voice line and the data line according to the state of the communication line. The subscriber trunk line and subscriber line are composed of a sound line and a data line, respectively, and a line is selected by operating the selector 12 when a subscriber is notified of failure or auto-detection.

The subscriber line selector 12 selects a line according to the user's bad report. In other words, the voice line is selected for the bad report of the telephone call, and the data line is selected for the bad report for the data communication. In addition, the subscriber line selector 12 may automatically select a line according to the line state. For example, if it is determined by the microcomputer that there is an error in the audio line or the data line, the line is selected according to the signal from the microcomputer and the line test is conducted.

The subscriber line selection unit 12 is connected to the subscriber identification unit 16. The subscriber verification unit 16 is to check the subscriber's telephone number when the line failure report, and if the failure report from the subscriber is provided with a caller ID verification device. In addition, a call test unit 30 is connected to the subscriber line selection unit 12. The call test unit 30 is for conducting a call test with a subscriber, and as shown in FIG. 4, a line check signal for generating a signal for determining a call circuit test unit 31 and a subscriber station line and a subscriber line. And a handset circuit 35 for making an actual call with the subscriber through the line selected according to the line matching signal. In addition, the call test unit 30 is provided with a speaker phone 37 to eliminate the inconvenience of the handset circuit 35 or long-term use.

As shown in FIG. 3, the integrated test bench also includes a voice line test unit 40 for testing the abnormality of the voice line and a test unit 50 for testing the presence of the error of the data line. The voice line test unit 40 and the data line test unit 50 are shown in FIGS. 5 and 6, respectively.

As shown in FIG. 5, the voice line test unit 40 includes a voltage measuring unit 41 measuring voltage of a voice line, a line capacitance measuring unit 43 measuring a line capacity, and a resistance of the line. The resistance analysis automatic switching unit 45 which is measured and analyzed according to the resistance value, and when the measured resistance value is several kΩ or less, is switched by the resistance analysis automatic switching unit 45 to measure the resistance value. Loop resistance measuring unit 48 for measuring the resistance and insulation resistance measurement unit for measuring the abnormality of the line by measuring the resistance value is switched by the resistance analysis automatic switching unit 45 when the measured resistance value is tens of MΩ or more It consists of 49.

The voltage measuring unit 41 determines that the DC voltage between the tip line and the ring line TR is greater than the reference value, and if it is smaller, compares the DC voltage of the ring-ground RG with the reference value. If the RG DC voltage is greater than the reference value, it is determined that an abnormality has occurred in the ring line. On the other hand, when the R-G DC voltage is less than the reference value, the line capacitance measuring unit 43 measures the capacitance of the T-R, T-G, R-G to determine whether the voice line is abnormal.

In addition, the loop resistance measuring unit 47 and the insulation resistance measuring unit 49 first compare the resistance measurement value of T-G with a reference value, and when the measurement value is smaller than the reference value, the resistance measurement value of R-G and the reference value are compared. In this case, when the resistance measurement value of the R-G is smaller than the reference value, the resistance measurement units 47 and 49 determine a failure of the T-R (that is, a short circuit of the line, a disconnection, etc.), and when the resistance measurement value is larger than the reference value, determines that the T-G is failure.

As shown in FIG. 6, the data line test unit 50 measures the resistance of the data line to measure the resistance of the data line, and measures the resistance of the data line having a resistance of several hundred MΩ or more. Insulation resistance booster 57 for boosting the hazardous voltage to 500V or higher, and TEL filter for filtering the unnecessary frequency of the AC component of the noise voltage from which the DC component inputted through the voice line is removed. (51), a G-filter unit 53 for evaluating the state of the data line by filtering unnecessary frequencies of the AC component of the noise voltage from which the DC component inputted through the data line is removed, and the balance of the data line is evaluated. Based on the values input from the balance measurer 54, the resistance measurer 56, the TEL-filter 51, the G-filter 53, and the balance measurer 54, Line side to detect whether there is an abnormality in the data line It consists of a part 55.

The state determination method of the data line by the noise voltage measuring means composed of the TEL-filter unit 51 and the G-filter unit 53 is disclosed in detail in Korean Utility Model Publication No. 20-0209176 already filed by the present applicant. Therefore, detailed description thereof will be omitted. In addition, as shown in the figure, the data line test unit 50 is provided with a TEL filter 51 for determining whether there is an abnormality in the audio line. This is provided in the line test section 50 because the TEL-filter section 51 and the G-filter section 53 judge the state of the track by a similar operation. Thus, the TEL-filter unit 53 may actually be included in the voice line test unit 40.

As described above, the values measured by the voice line test unit 40 and the data line test unit 50 are converted into digital data by an analog / digital converter (not shown) and input to the microcomputer 22. The microcomputer 22 determines the abnormality of the line by analyzing the state of the voice line and the data line based on the input data. The microcomputer 22 is equipped with a dedicated program produced by a program language such as a general C-language (machine language) hardware program to analyze the state of the track, and the state of the track is analyzed by driving the dedicated program. . In addition, it is possible to easily supplement and modify the efficient function through the microcomputer program method.

In addition, the integrated test bench of the present invention includes a display unit 24 for displaying a result of the analysis so that the user grasps the current state of the track. The display unit 24 is generally capable of any kind of display, but uses a graphical liquid crystal display (LCD) to secure the user's field of view and displays various types of data to change the measurement method several times when using an existing analog test. In order to eliminate the problem of memorizing the measured values, the automatic measured data is compared and output on one screen to assist the user in determining the line status.

The result analyzed by the microcomputer 22 is output to the terminal or remote support system of the field agent through the output unit 26, such as an RS-232C port or a modem, to enable simultaneous monitoring of the field agent and the remote support team.

In the drawing, reference numeral 28 denotes a power supply unit to supply power to each of the above components.

As described above, the communication line test apparatus of the present invention can simply test the subscriber station line and the subscriber line each consisting of a voice line and a data line by a single integrated test apparatus. In this case, a test on a specific line is performed by receiving a user's bad report, but whether the selected line is a data line can be determined by the microcomputer. That is, it is determined whether the line under test is for a data line based on the noise voltage level of the data line measured by the G-filter and the insulation resistance measured by the insulation resistance measuring unit.

As described above, in the present invention, since there is an abnormality of a data line such as a voice line, which is a telephone line of a communication line, and a data line such as a high-speed Internet network, a single test bed is integrated, so that a simple line can be tested. In addition, since the analysis result of the circuit is managed by the microcomputer and transmitted to an external device, the efficiency of the work can be increased quickly.

Claims (7)

A subscriber line selecting unit for connecting the communication line consisting of a voice line and a data line to select the voice line and the data line according to the state of the voice line and the data line: A subscriber identification unit and a call test unit that checks the subscriber's number and reports the subscriber's line defect after executing a call with the subscriber; A voice line test unit which measures a voltage, line capacity, and resistance value of a sound line to test an abnormality of the line based on the measured value when the voice line is selected by the subscriber line selector; A data line test unit for measuring an abnormality of the line based on the measured value by measuring a resistance value and a noise voltage value of the data line when the data line is selected by the subscriber line selector; And And a microcomputer configured to analyze and manage abnormalities of the voice line and the data line by inputting the results tested by the voice line test unit and the data line test unit. According to claim 1, wherein the audio line test unit, A voltage measuring unit measuring a voltage of the voice line; A track capacity measuring unit for measuring a track capacity; Resistance analysis automatic switching unit which is switched according to the resistance value by measuring the resistance of the line; A loop resistance measuring unit which is switched by the resistance analysis automatic switching unit when the measured resistance value is several kΩ or less and measures the abnormality of the line by measuring the resistance value; When the measured resistance value is more than several tens of MΩ, it is switched by the resistance analysis automatic switching unit, characterized in that the insulation resistance measuring unit for measuring the abnormality of the line by measuring the resistance value. The method of claim 1, wherein the data line test unit, A resistance measuring unit measuring resistance of the data line to determine whether the line is abnormal; An insulation resistance booster for boosting voltage to high voltage for resistance measurement of a data line having a resistance of several hundred MΩ or more; A G-filter unit for filtering an unnecessary frequency of an AC component of a noise voltage from which a DC component input through the data line is removed to evaluate a state of the data line; A balance degree evaluator which evaluates the balance of the data line; And And a line measuring unit for detecting an abnormality of the current data line based on values input from the resistance measuring unit, the G-filter unit, and the balance evaluation unit. [4] The apparatus of claim 2 or 3, further comprising a TEL filter unit for filtering an unnecessary frequency of an AC component of a noise voltage from which a DC component input through the voice line is removed to evaluate a state of the voice line. Device. The method of claim 1, A display unit configured to display a result analyzed by the microcomputer to allow a user to grasp a state of a current line; And Apparatus further comprising an output unit for outputting the results analyzed by the microcomputer to the terminal or remote support system of the field agent to monitor them. The apparatus of claim 1, wherein the subscriber line selection unit is connected to a subscriber station line and a subscriber line at the same time so that the subscriber line line and the subscriber line are tested. The apparatus of claim 1, wherein the subscriber line selection unit determines whether the line corresponding to the analysis result of the line analyzed by the microcomputer is input is a data line.