CN101042420A - Method, system and device for line detection - Google Patents
Method, system and device for line detection Download PDFInfo
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- CN101042420A CN101042420A CN 200710097628 CN200710097628A CN101042420A CN 101042420 A CN101042420 A CN 101042420A CN 200710097628 CN200710097628 CN 200710097628 CN 200710097628 A CN200710097628 A CN 200710097628A CN 101042420 A CN101042420 A CN 101042420A
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- 238000004891 communication Methods 0.000 claims description 2
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Abstract
This invention provides one circuit test method, system and device, which comprises the following steps: sending test signals; according to the test signals to determine the test signals and according to whether the test signal is same to preset signal to test the user line connection fault. This invention actively sends signals through device side device and the remote test device sends signal test user circuit according to the signal emission device.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method, a system and a device for line detection.
Background
During the installation and construction process of narrow-band or wide-band equipment, the problems of wrong line sequence of a subscriber line or reverse connection of AB lines of the subscriber line are easy to occur. The wrong subscriber line sequence means that a plurality of subscriber line ports are misconnected, for example, a port a of the equipment side is connected with a port 2 of a distribution frame, and a port b of the equipment side is connected with a port 1 of the distribution frame (normally, the port a is connected with the port 1, and the port b is connected with the port 2); the reverse connection of the AB line of the subscriber line refers to the reverse connection of the A line of the subscriber line and the B line of the subscriber line.
In order to avoid the above problems, before a user is formally signed, the connection condition of a subscriber line needs to be detected, but currently, no good diagnostic tool can automatically and quickly detect the line sequence of the subscriber line and/or the problem of reverse connection of an AB line of the subscriber line, and only a manual test can be performed, for example, as shown in fig. 1, 2 persons are generally required to cooperate in the test, as shown in fig. 1, wherein an operator a is required at a control terminal to observe whether a port can be normally activated, and an operator B is also required at a far end to confirm that the port of the user is normal, and then the terminal is replaced to another port, which wastes time and labor, and is very inefficient.
Disclosure of Invention
In view of the above problems in the prior art, an object of the embodiments of the present invention is to provide a method, a system, and a device for line detection, in which a remote detection device detects a subscriber line according to a signal sent from a device under test on a device side, so as to reduce manpower and material resources during line detection, and improve line detection efficiency.
The purpose of the embodiment of the invention is realized by the following technical scheme:
the embodiment of the invention provides a line detection method, which comprises the following steps:
sending a detection signal;
and detecting the connection fault of the subscriber line according to the existence of the received detection signal or according to whether the detection signal is the same as a preset signal or not when the detection signal is determined to be received.
The embodiment of the invention also provides a line detection system, which comprises:
detection signal transmitting means for transmitting a detection signal;
and the detection device is connected with the detection signal sending device and used for detecting the connection fault of the subscriber line according to whether the detection signal is received or not or when the detection signal is determined to be received and according to whether the detection signal is the same as a preset signal of the detection device or not.
An embodiment of the present invention further provides a digital subscriber line access multiplexer, including:
and a detection signal transmitting unit for transmitting the detection signal.
An embodiment of the present invention further provides a line detection apparatus, including:
a detection signal receiving unit for receiving a detection signal;
and the detection unit is connected with the detection signal receiving unit and used for detecting the connection fault of the subscriber line according to whether the detection signal is received or not or whether the detection signal is the same as the preset signal of the detection device or not when the detection signal is determined to be received.
It can be seen from the above technical solutions provided in the embodiments of the present invention that, the embodiments of the present invention provide a method, a system, and a device for line detection, in which, in the embodiments of the present invention, a device to be detected on a device side actively transmits a signal, and a remote detection device detects a user line according to the signal transmitted by the device side signal transmission device, so that manpower and material resources during line detection are reduced, and the purpose of improving line detection efficiency is achieved.
Drawings
FIG. 1 is a schematic diagram of a prior art method for line inspection;
FIG. 2 is a schematic diagram illustrating a process of detecting a level signal transmitted by a signal transmitting apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a process of detecting a frequency signal transmitted by a signal transmitting apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a digital subscriber line access multiplexer according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a detecting device according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a test card according to an embodiment of the present invention;
FIG. 8 is a diagram of the internal circuit structure of the test card according to the embodiment of the present invention;
fig. 9 is a schematic diagram of detecting a line sequence error according to an embodiment of the invention.
Detailed Description
The method, system and method of the embodiments of the present invention will be described in detail with reference to the accompanying drawings.
First, the method according to the embodiment of the present invention will be explained in detail.
In the first embodiment of the present invention, when the detection signal sent by the detection signal sending device on the device side is a level signal, the detection device on the far end is a level signal detection device, and the level signal detection device detects a connection fault of a subscriber line according to whether the level signal is received or not, or when it is determined that the level signal is received, according to whether the level signal is the same as a preset signal of the detection device, which will be described in detail below.
Fig. 2 shows a specific process of detecting a signal sent by a signal sending apparatus, where the signal sending apparatus may be a DSLAM (digital subscriber line access multiplexer) in a specific implementation process of the embodiment of the present invention, and the specific sending process is as follows: the DSLAM subscriber board may sequentially send level signals to the ports of the level signal detection device through the subscriber lines according to the port order, for example, the DSLAM subscriber board starts to periodically send a dc level signal from the port 1, first, the port 1 sends a +5v level signal, other ports do not send, the level signal detection device determines whether there is a port on the DSLAM subscriber board that receives the level signal, if so, the subscriber line of the port 1 is correctly connected, otherwise, the subscriber line on the port has an AB line reverse connection or open circuit problem;
after a period of time (for example, 0.5 second), the port 1 of the DSLAM subscriber board stops sending the level signal, the port 2 starts sending the level signal of +5v, and the other ports do not send signals, the level signal detection device judges whether any port on the level signal detection device receives the level signal, if yes, the AB line of the subscriber line of the port 2 is correctly connected, otherwise, the subscriber line on the port has the problem of reverse connection or open circuit of the AB line;
similarly, after a period of time (for example, 0.5 second), the port 2 stops sending the dc level signal, the port 3 starts sending the +5v level signal, and the other ports do not send signals, and the DSLAM subscriber board detects whether the AB line reverse connection occurs in the subscriber line on the port according to the above method; and so on, only allowing the DSLAM subscriber board to send the level signal to the level signal detection device through one port in each time period, and after the level signal is sent to the last port, jumping back to the initial position and sending the level signal to the port 1 again.
The level signal detection device judges whether the AB line of the subscriber line is reversely connected or whether the subscriber line is open according to the level signal received by the non-end port, if the level signal can be received, the subscriber line is normal, otherwise, the AB line of the subscriber line is reversely connected or the subscriber line is open.
The level signal detection device judges whether the AB line is reversely connected according to whether a +5v level signal is received, when the level signal is received, that is, the user line is normally connected, the level signal detection device judges whether the sequence of the level signals received by a plurality of ports on the level signal detection device is the same as the sequence of the level signals sent by the level signal sending device according to the ports, if so, the line sequence of the user line is correct, otherwise, the line sequence error is corrected, and the detection is repeated. For example, the port 1, the port 2, and the port 3 of the detection signal transmitting device are connected to the port a, the port C, and the port B of the level signal detecting device through the subscriber line (the normal line sequence should be 1-a, 2-B, and 3-C), the detection signal transmitting device sequentially transmits signals to the level signal detecting device according to the sequence of the port 1, the port 2, and the port 3, and the sequence of the level signal receiving by the port of the level signal detecting device is the port a, the port C, and the port B, which means that the subscriber line sequence problem occurs at the port 2 and the port 3 of the DSLAM subscriber board.
In a second embodiment of the present invention, when the detection signal sent by the DSLAM subscriber board is a frequency signal, the frequency signal detection apparatus detects the subscriber line according to whether the frequency signal is the same as a preset frequency signal. The specific detection process can be as follows:
as shown in fig. 3, the device side sequentially transmits the frequency signals to the ports on the level signal detecting apparatus through the subscriber lines in the port order. Specifically, the DSLAM subscriber board may send a single frequency signal with a different frequency to a plurality of ports of the frequency signal detection device from port 1, for example, port 1 sends a single frequency signal with 300k Hz, port 2 sends a single frequency signal with 310k Hz, port 3 sends a single frequency signal with 320k Hz, and so on, each port may send a signal all the time.
The frequency signal detection device judges whether the frequency of the single-frequency signal received by the port of the frequency signal detection device is the same as the preset frequency of the port of the frequency signal detection device, if so, the line sequence of the subscriber line is correct, otherwise, the line sequence error is corrected, and the detection is repeated. In a specific implementation process of the embodiment of the present invention, the frequency signal detecting device may be a frequency meter, and during detection, the frequency meter is respectively connected to each port, the frequency of a single-frequency signal sent by each port is detected, whether the frequency is equal to a predetermined frequency is determined, if the frequency is equal to the predetermined frequency, it indicates that the subscriber line has no problem of line sequence, and if the frequency is different or not displayed, it indicates that the subscriber line has a wrong line sequence.
Of course, those skilled in the art should know that the frequency signal sent by the frequency meter is not limited to a single frequency signal, but may also send other frequency signals, and at this time, only the frequency needs to be counted as a corresponding setting, and as for the specific detection process of the frequency meter, a mature solution is already provided in the prior art, and details are not described here.
The following is a detailed description of the system described in connection with the embodiments of the invention.
As shown in fig. 4, the system according to the embodiment of the present invention specifically includes: a detection signal transmitting device and a detection device;
detection signal transmission means: for sending a detection signal to the detection device; in a specific implementation process of the embodiment of the present invention, the detection signal sent by the device-side signal sending apparatus may be a level signal or a frequency signal.
The detection device comprises: and the device is used for detecting the connection fault of the subscriber line according to whether the detection signal is received or not or whether the detection signal is the same as the preset signal of the detection device when the detection signal is determined to be received.
In the specific implementation process of the embodiment of the present invention, when the detection signal is a level signal, the detection device determines whether a port of the detection device receives the level signal, if the level signal is received, it indicates that the subscriber line is connected normally, otherwise, it indicates that the AB line is connected reversely or the subscriber line has an open circuit problem; when the level signal is determined to be received, the detection device judges whether the sequence of the level signal received by the ports of the detection device is the same as the sequence of the level signal sent by the detection signal according to the ports, if so, the line sequence of the subscriber line is correct, otherwise, the line sequence error is corrected by the detection personnel, and the detection is repeated; when the detection signal is a frequency signal, the detection device judges whether the frequency of the single-frequency signal received by the plurality of ports of the detection device is the same as the preset frequency of the ports of the detection device, if so, the line sequence of the subscriber line is correct, otherwise, the line sequence error is corrected, and the detection is repeated.
The digital subscriber line access multiplexer DSLAM according to the embodiment of the present invention is explained in detail below.
As shown in fig. 5, the DSLAM according to the embodiment of the present invention specifically includes:
a detection signal transmitting unit: the ports are used for sending the detection signals to the detection unit according to a preset sequence, and the preset sequence can be according to the port sequence of the detection signal sending unit or other preset sequences;
the detection signal sending unit specifically includes:
the level signal sending module: the device comprises a detection device, a level signal sending device and a level signal receiving device, wherein the detection device is used for sending level signals to a plurality of ports of the detection device according to a preset sequence; and/or the presence of a gas in the gas,
the frequency signal transmitting module: for transmitting different frequency signals to the plurality of ports of the detection device in a predetermined order.
The device for sending the detection signal further comprises:
detection signal monitoring unit: controlling whether to send the next detection signal according to whether the detection signal reaches the detection unit; and when the detection signal does not reach the detection device, the detection signal control unit controls the detection signal sending unit to stop sending the next detection signal.
The following describes the detection device according to the embodiment of the present invention in detail.
As shown in fig. 6, the detection apparatus according to the embodiment of the present invention specifically includes:
a detection signal receiving unit: for receiving a detection signal;
a detection unit: and the detection signal receiving unit is connected with the detection signal receiving unit and is used for detecting the connection fault of the subscriber line according to whether the detection signal is received or not or when the detection signal is determined to be received and according to whether the detection signal is the same as the preset signal of the detection device or not.
The detection device of the embodiment of the invention further comprises:
a display unit: the method is used for displaying the detection result, specifically, the detection unit notifies the display unit of the detected subscriber line faults (including the AB line reverse connection of the subscriber line and the wrong line sequence of the subscriber line), and the detection personnel eliminates the fault problem of the subscriber line according to the result of the display unit.
The following describes a specific implementation process of the detection apparatus according to the embodiment of the present invention in detail by way of example.
In order to facilitate detection, in a specific implementation process of the embodiment of the present invention, the level signal detection apparatus may be designed in a form of a plug-in card. The functions performed by the test device are as follows: 1. when the AB line is reversely connected, the AB line is disconnected; 2. the on-off state of the previous circuit controls the state of the next circuit. The test device is designed as a card, the schematic diagram of which is shown in fig. 7:
one side of the test card is a status indicator lamp surface, the other side of the test card is an MDF mold strip contact surface, the MDF mold strip contact surface is provided with 16 metal probes, the metal probes correspond to the metal elastic sheets on the MDF mold strip one by one, and the structure of the MDF mold strip is shown in figure 7. When in use, the test card is inserted into the MDF mould strip; the user line from the equipment side is connected with the MDF mould strip, clamped on the blank surface of the MDF mould strip and connected with the metal elastic sheet; the subscriber line is connected with the test card through the MDF module strip.
The internal circuit of the test card is shown in fig. 8, wherein a1 and a2 are connected to the a line and the B line of the 1 st subscriber line through MDF module bars, and A3 and a4 are connected to the a line and the B line of the 2 nd subscriber line through MDF module bars. A test card is connected with a plurality of subscriber lines, and other circuits except the first circuit are similar: the test card is implemented to meet the requirements:
(1) detecting whether the subscriber line is normally connected (the subscriber line is disconnected or the AB line is reversely connected): the detection signal sending device sends a detection signal to the first path of subscriber line, when the AB line of the subscriber line is connected normally, namely the subscriber line is not opened or the AB line is not reversed, when the test card receives a level signal sent by the device side signal sending device, A, K in the U1 is conducted, a Light Emitting Diode (LED) on a circuit corresponding to the subscriber line is in a connected state, at the moment, the narrowband access device can think that the subscriber line is in an off-hook state, and a line state indicator lamp on the test card is displayed in a lighting state; if the test card cannot receive the level signal sent by the equipment side signal sending device when a certain user line is open or the AB line is reversely connected, the light emitting diode on the circuit corresponding to the user line is in a disconnected state, and the corresponding indicator light on the test card is in an off state;
(2) detecting whether the line sequence of the subscriber line is wrong: if the line is on and the AB line is not reversed, the detection signal transmitting apparatus continues to test, specifically as shown in fig. 9, assuming that there is a problem of line sequence disorder as shown in fig. 9 (the correct line sequence is 1-a, 2-B, 3-C, 4-D, 5-E, 6-F), before the test starts, it is ensured that the first path and the a path are correctly butted, and the test starts: the detection card changes the state of the 1-A path, the state of the A changes at the moment, the state of the A changes to cause the state of the B changes, when the line needs to be correct, the state of the B changes to cause the state of the 2-B, in the line sequence error shown in FIG. 9, the state actually changes to 3-B, namely, the line butt joint error of the first path of user and the third path of user actually changes, the detection card detects the state change of the B, 2 and 3 are considered to be reversely connected, namely, 2-D and 3B are reversely connected, the indicator lamps corresponding to the two paths of user lines on the detection card are in a flashing state, a detector corrects the error according to the display of the detection card, corrects the 1-A and 2-B to be correctly butted, and then repeats the detection process until all line sequence errors are eliminated.
So far, in the embodiment of the present invention, only the DSLAM subscriber board sends a +5V level signal or a single frequency signal, and the remote detection device performs an example of a connection fault of a subscriber line according to the signal, but the embodiment of the present invention is not limited to these two signals, and a person skilled in the art should know that all fixed level signals or frequency signals can implement a line detection function, for example, a +5V level, a +12V level, a-48V level signal, a 100kHz frequency signal, a 200kHz frequency signal, and the like, and therefore, whatever form of signal is adopted, the method is within the protection scope of the embodiment of the present invention. In addition, the embodiment of the present invention only takes the DSLAM as an example for sending the detection signal by the signal equipment side sending device, and actually, the equipment side signal sending device may also be outside the DSLAM equipment and access to the DSLAM equipment through a general interface to send the detection signal.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. Therefore, the protection scope of the embodiments of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method of line inspection, comprising:
sending a detection signal;
and detecting the connection fault of the subscriber line according to the existence of the received detection signal or according to whether the detection signal is the same as a preset signal or not when the detection signal is determined to be received.
2. The method according to claim 1, characterized in that it comprises in particular:
when the transmitted detection signal is a level signal, detecting the connection fault of the subscriber line according to the existence of the received level signal or according to whether the level signal is the same as a preset level signal or not;
and when the sent signal is a frequency signal, detecting the connection fault of the subscriber line according to whether the frequency signal is the same as a preset frequency signal.
3. The method according to claim 2, wherein the step of detecting the connection fault of the subscriber line according to whether the level signal is received or not when the transmitted detection signal is the level signal or according to whether the level signal is the same as a preset level signal or not specifically comprises:
sequentially sending level signals to a plurality of ports of a level signal detection device according to a preset sequence;
judging whether the port receives the level signal, if so, the subscriber line of the port is connected correctly, otherwise, the subscriber line is connected reversely; or,
and when the ports receive the level signals, judging whether the sequence of the level signals received by the ports is the same as the preset sequence, if so, judging that the line sequence of the subscriber line is correct, otherwise, judging that the line sequence of the subscriber line is wrong.
4. The method according to claim 2, wherein the step of detecting the connection fault of the subscriber line according to whether the frequency signal is the same as a preset frequency signal when the transmitted signal is the frequency signal specifically comprises:
sending different frequency signals to ports of a detection device according to a preset sequence;
and judging whether the frequency of the level signal received by the port is the same as the preset frequency of the port, if so, the line sequence of the subscriber line is correct, and otherwise, the line sequence of the subscriber line is wrong.
5. A system for line inspection, the system comprising:
detection signal transmission means: for transmitting a detection signal;
the detection device comprises: and the detection signal sending device is connected with the detection signal sending device and is used for detecting the connection fault of the subscriber line according to whether the detection signal is received or not, or when the detection signal is determined to be received, according to whether the detection signal is the same as the preset signal of the detection device or not.
6. A digital subscriber line access multiplexer, comprising:
a detection signal transmitting unit: for transmitting the detection signal.
7. The apparatus of claim 6, wherein the detection signal transmitting unit comprises:
the level signal sending module: the device comprises a detection device, a level signal sending device and a level signal receiving device, wherein the detection device is used for sending level signals to a plurality of ports of the detection device according to a preset sequence; and/or the presence of a gas in the gas,
the frequency signal transmitting module: for transmitting different frequency signals to the plurality of ports of the detection device in a predetermined order.
8. The apparatus according to claim 6 or 7, wherein the communication apparatus further comprises:
and the detection signal monitoring unit is used for controlling the signal sending unit to stop sending the detection signal when the detection signal is found not to reach the detection device.
9. A line detection device, comprising:
a detection signal receiving unit for receiving a detection signal;
a detection unit: and the detection signal receiving unit is connected with the detection signal receiving unit and is used for detecting the connection fault of the subscriber line according to whether the detection signal is received or not or when the detection signal is determined to be received and according to whether the detection signal is the same as the preset signal of the detection device or not.
10. The apparatus of claim 9, further comprising:
and the display unit is used for displaying the detection result.
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|---|---|---|---|
| CN200710097628A CN101042420B (en) | 2007-04-24 | 2007-04-24 | Method, system and device for line detection |
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| CN200710097628A CN101042420B (en) | 2007-04-24 | 2007-04-24 | Method, system and device for line detection |
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| CN101042420A true CN101042420A (en) | 2007-09-26 |
| CN101042420B CN101042420B (en) | 2010-05-26 |
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| CN200710097628A Expired - Fee Related CN101042420B (en) | 2007-04-24 | 2007-04-24 | Method, system and device for line detection |
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| CN102065185A (en) * | 2011-01-07 | 2011-05-18 | 中兴通讯股份有限公司 | Method and device for detecting link fault of digital subscriber line DSL (Digital Subscriber Line) circuit board |
| CN103328992A (en) * | 2010-12-20 | 2013-09-25 | 迪尔公司 | Method and system for diagnosing a fault or open circuit in a network |
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| CN103516443A (en) * | 2012-06-19 | 2014-01-15 | 中兴通讯股份有限公司 | Method and device for detecting working state of indoor unit in microwave system |
| CN103916152A (en) * | 2012-12-30 | 2014-07-09 | 北京握奇数据系统有限公司 | Method, terminal and system for obtaining audio line sequence |
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| CN105991326A (en) * | 2015-02-10 | 2016-10-05 | 中兴通讯股份有限公司 | Method and apparatus for determining correspondence between device port and user line |
| WO2016127758A1 (en) * | 2015-02-10 | 2016-08-18 | 中兴通讯股份有限公司 | Method and apparatus for determining corresponding relationship between device port and user line |
| CN107064716A (en) * | 2017-05-05 | 2017-08-18 | 广东正力通用电气有限公司 | A kind of power transmission line break monitoring system and method |
| CN109427289A (en) * | 2017-08-31 | 2019-03-05 | 西安诺瓦电子科技有限公司 | Display control program and remote monitoring method |
| CN109116177A (en) * | 2018-06-11 | 2019-01-01 | 格力电器（武汉）有限公司 | Method and device for detecting line sequence of connecting line and computer storage medium |
| CN109194541A (en) * | 2018-08-22 | 2019-01-11 | 北京百度网讯科技有限公司 | A kind of network test method and system |
| CN109194541B (en) * | 2018-08-22 | 2021-04-16 | 北京百度网讯科技有限公司 | Network testing method and system |
| CN109359078A (en) * | 2018-12-10 | 2019-02-19 | 威创集团股份有限公司 | A kind of self-adapting serial port interface circuit and its control method for middle control host |
| CN110531247A (en) * | 2019-08-16 | 2019-12-03 | 珠海易发照明器材有限公司 | A kind of the PCBA method of inspection and device of emergency luminaire |
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| CN101042420B (en) | 2010-05-26 |
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