CN101287038A - Device and method capable of detecting reverse polarity of subscriber circuit - Google Patents
Device and method capable of detecting reverse polarity of subscriber circuit Download PDFInfo
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- CN101287038A CN101287038A CNA2007100911601A CN200710091160A CN101287038A CN 101287038 A CN101287038 A CN 101287038A CN A2007100911601 A CNA2007100911601 A CN A2007100911601A CN 200710091160 A CN200710091160 A CN 200710091160A CN 101287038 A CN101287038 A CN 101287038A
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Abstract
The invention provides a device and a method which can detect reversed polarity of a subscriber circuit. The method is invented aiming at solving the problems that automatic detection of the reversed polarity of the subscriber circuit can not be realized in the prior art; two phones are respectively simulated at the ends of the detected subscriber circuit and the test circuit; a calling analog phone generates an analog dial-up by a signal tone generating unit; a called analog phone is jointed to a time division multiplex switching unit after passing through a normal general telephone signaling process; then the called analog phone is hook-off and communicated with the calling analog phone, meanwhile, the polarity of wire A and wire B of the subscriber circuit to be detected is detected by a reversed polarity detecting unit. The device and the method of the invention is mainly applied to detecting the reversed polarity of the subscriber circuit, can stimulate the working process of the charging phones, achieve an automatic detection of the subscriber without human intervention, detect faults automatically and the subscriber circuit regularly so as to prevent faults from happening at the same time.
Description
Technical field
The present invention relates to a kind of service equipment and method of telephone network, particularly a kind of apparatus and method that can detect reverse polarity of subscriber circuit.
Background technology
In the operation of existing telephone network, the charging phone brings great convenience to users as important part, and has brought considerable income for telecom operators.Wherein, the phone that charges greatly is that the subscriber line circuit that depends on local side apparatus provides anti-polar signal to charge.Antipole is meant the both positive and negative polarity upset of telephone wire.Telephone office provides 48V direct current, so telephone wire is divided into A, B line, A, B line have both positive and negative polarity.Antipole be exactly the polarity of telephone wire in extremely short time reversal, anti-polar signal is used for chargeing.The course of work of antipole is such: when the user calls, and the other side's phone one off-hook, local call office is the telephone wire polarity inversion with the user in moment, and taximeter begins to charge after recognizing polarity inversion.If the other side ring unanswered or miscue, local call office can reversed polarity, and taximeter does not charge.Phone is that the subscriber line circuit that depends on local side apparatus provides anti-polar signal to charge owing to charge greatly, or even depend on anti-polar signal and just allow the user to converse, therefore break down when causing producing anti-polar signal when subscriber line circuit, it is crucial can in time detecting this fault.
In the maintenance of existing telephone network, because subscriber's line quantity is huge, and some Function detection lacks the means of effective automation detection failure, and maintenance is very difficult.The fault of some subscriber line circuits, normally telecommunication bureau receives after the customer complaint, just can carry out the failure location analysis, or even is being with instrument to go to carry out manual detection to the scene.This maintenance mode is poor efficiency relatively, and very passive, is unfavorable for improving user satisfaction.
In existing antipole detection at subscriber line circuit, all need the artificial conversation that participates in usually, by the voltage of instrument or instrument such as universal instrument measurement subscriber's line, could determine whether the antipole function of subscriber line circuit is normal then.This detection mode, very labor intensive causes the cost of operator to increase.
Summary of the invention
At defective that exists in the prior art and deficiency, the objective of the invention is to propose a kind of apparatus and method that can detect reverse polarity of subscriber circuit, can reach the antipole of automatic detection subscriber line circuit and do not need artificial participation, to lower the maintenance cost of operator.
In order to achieve the above object, the present invention proposes a kind of device that can detect reverse polarity of subscriber circuit, comprising:
Grab the line unit, be used for the subscriber line circuit to be measured of detected equipment is grabbed line;
The subscriber line circuit unit provides the subscriber line circuit of this checkout gear;
Analog station group unit provides at least one caller analog station and at least one called analog station, and this caller analog station is connected subscriber line circuit to be measured and above-mentioned subscriber line circuit unit respectively with called analog station;
The signal tone generation unit, dual tone multiple frequency (DTMF) dialing that is used to simulate the caller analog station;
The antipole detecting unit is used to detect the A of subscriber line circuit to be measured, the polarity of B line;
Time division multiplexing (Time Division Multiplex and Multiplexer, hereinafter to be referred as TDM) crosspoint, be connected to the crosspoint of detected equipment, when the caller analog station was called out called analog station, called analog station was connected to this TDM crosspoint.
Wherein, above-mentioned caller analog station is connected to subscriber line circuit to be measured, and above-mentioned called analog station is connected to above-mentioned subscriber line circuit unit.
Wherein, above-mentioned detection device also comprises:
Relay unit is used for the analog station that analog station group unit provides is connected to subscriber line circuit to be measured and above-mentioned subscriber line circuit unit, and the signal tone generation unit is connected on the subscriber line circuit to be measured;
As preferably, above-mentioned detection device also comprises:
Communication channel is used for the communication between the control unit of above-mentioned detection device and detected equipment.
In order to achieve the above object, the invention allows for a kind of method that can detect reverse polarity of subscriber circuit, comprising:
Step 1, provide checkout gear as claimed in claim 1;
Step 2, grab the line unit subscriber line circuit to be detected is grabbed line;
Step 3, analog station group unit provide a caller analog station and a called analog station, and this caller analog station is connected subscriber line circuit to be measured and above-mentioned subscriber line circuit unit respectively with called analog station;
Step 4, above-mentioned caller analog station off-hook, and signal tone generation unit and antipole detecting unit be connected to subscriber line circuit to be measured;
Step 5, antipole detecting unit detect A, the B line polarity of subscriber line circuit to be measured, and the signal tone generation unit is called out called analog station;
Step 6, called analog station is connected to the TDM crosspoint, called analog station off-hook;
Step 7, antipole detecting unit detect A, the B line polarity of subscriber's line to be measured.
Wherein, in the described step 3, this caller analog station is connected to subscriber line circuit to be measured; This called analog station is connected to the subscriber line circuit of above-mentioned detection device.
Wherein, above-mentioned detection method also comprises:
One relay unit is provided, and the analog station that above-mentioned analog station group unit is provided by this relay unit is connected to subscriber line circuit to be measured and above-mentioned subscriber line circuit unit, and the signal tone generation unit is connected on the subscriber line circuit to be measured.
As preferably, above-mentioned detection method also comprises:
One communication channel is provided, makes the control unit of above-mentioned detection device and detected equipment carry out communication by this communication channel.
The present invention proposes a kind of apparatus and method that can detect reverse polarity of subscriber circuit.At the problem that can't realize detecting automatically reverse polarity of subscriber circuit in the prior art, the present invention adopts and respectively simulates a phone in the subscriber line circuit unit side of tested subscriber line circuit and testing apparatus, pass through signal tone generation unit analog dialup by the caller analog station then, through behind the normal plain old telephone signaling process called analog station is routed to the TDM crosspoint again, called then analog station off-hook, with caller analog station UNICOM, this moment, the antipole detecting unit detected A, the B line polarity of subscriber line circuit to be measured.Like this, can simulate the course of work of charging phone, reach and need not human intervention and detect subscriber line circuit automatically, can automatic fault detection, can regularly detect subscriber line circuit simultaneously and prevent that fault from taking place.
Description of drawings
Fig. 1 is a kind of device preferred embodiment schematic diagram that can detect reverse polarity of subscriber circuit of the present invention;
Fig. 2 is a kind of method preferred embodiment flow chart that can detect reverse polarity of subscriber circuit of the present invention.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
The present invention proposes a kind of device that can detect reverse polarity of subscriber circuit, preferred embodiment comprises as shown in Figure 1:
Grab line unit 1, be used for subscriber line circuit to be detected is grabbed line, can realize with relay during actual the realization; Grab line and be meant and local side formation current circuit, introduce local side voltage;
Relay unit 2 is used for analog station is received subscriber line circuit to be detected, and analog station is connected to the subscriber line circuit that checkout gear carries, and with the signal tone generation unit and receive on the A, B line of subscriber line circuit;
Analog station group 3 provides a caller analog station to receive subscriber line circuit to be detected, and the simulation calling subscriber breathes out, and also provides a called analog station to receive on the subscriber line circuit unit 4 that checkout gear carries the simulation called subscriber simultaneously;
Subscriber line circuit unit 4, form by codec Codec and user interface circuit SLIC (SubscriberLine Interface Circuit) chip, 7 kinds of functions (BORSCHT) of the basic analog subscriber line circuit of subscriber line circuit are provided, realize being connected between user terminal and the TDM switching network, be mainly used in the connection analog station in the present embodiment and do called;
TDM crosspoint 5 is connected to the TDM crosspoint of detected equipment with the subscriber line circuit unit of checkout gear, and the TDM between caller and called users is provided interface channel;
CPU6, the control detection device;
Communication channel 7 is used for the communication between the control unit of checkout gear and detected equipment;
Antipole detecting unit 8, be used to detect the A of detected subscriber line circuit, the polarity of B line, at first detect the A of detected subscriber line circuit when the caller off-hook, the normal polarity between the B line, detect then after called off-hook is connected speech channel, polarity between the A of detected subscriber line circuit, B line, thus judge whether to produce antipole;
Signal tone generation unit 9, be used to produce various audio signals, can realize dtmf dialing, send functions such as howler tone, the core of this module is actually a D/A converter, can generate the sampled data of required audio analog signals by DSP, synchronous serial interface by oneself outputs to the signal tone generation module, is transformed into actual audio signal output, is mainly used in the generation dtmf dialing in the present invention.
The present invention proposes a kind of method that can detect reverse polarity of subscriber circuit, the flow process of preferred embodiment comprises as shown in Figure 2:
Speech channel between step 111, the called analog station off-hook, this moment two analog stations is connected; If calling subscriber's circuit provides the reversed polarity billing function, this moment, polarity reversing signal will appear in calling subscriber's circuit;
Need to prove that present embodiment is to begin to checkout gear from assign the manmachine command that detects reverse polarity of subscriber circuit by webmaster or maintenance console.In actual applications, can be that the attendant assigns manmachine command by webmaster or maintenance console; Also can be that the strategy that regular execution manmachine command is set on webmaster or maintenance console carries out, can realize regularly detecting the antipole function of detected subscriber line circuit like this, in time record in the alarm log when breaking down.
Certainly; the present invention also can have other embodiment; under the situation that does not deviate from spirit of the present invention and essence thereof; the person of ordinary skill in the field works as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of claim of the present invention.
Claims (8)
1, a kind of device that can detect reverse polarity of subscriber circuit comprises:
Grab the line unit, be used for the subscriber line circuit to be measured of detected equipment is grabbed line;
The subscriber line circuit unit provides the subscriber line circuit of this checkout gear;
Analog station group unit provides at least one caller analog station and at least one called analog station, and this caller analog station is connected subscriber line circuit to be measured and above-mentioned subscriber line circuit unit respectively with called analog station;
The signal tone generation unit, the dual tone multiple frequency dialing that is used to simulate the caller analog station;
The antipole detecting unit is used to detect the A of subscriber line circuit to be measured, the polarity of B line;
The time division multiplexing crosspoint is connected to the crosspoint of detected equipment, and when the caller analog station was called out called analog station, called analog station was connected to this time division multiplexing crosspoint.
2, a kind of device that can detect reverse polarity of subscriber circuit according to claim 1 is characterized in that, above-mentioned caller analog station is connected to subscriber line circuit to be measured, and above-mentioned called analog station is connected to above-mentioned subscriber line circuit unit.
3, a kind of device that can detect reverse polarity of subscriber circuit according to claim 1 and 2 is characterized in that above-mentioned detection device also comprises:
Relay unit is used for the analog station that analog station group unit provides is connected to subscriber line circuit to be measured and above-mentioned subscriber line circuit unit, and the signal tone generation unit is connected on the subscriber line circuit to be measured;
4, a kind of device that can detect reverse polarity of subscriber circuit according to claim 3 is characterized in that above-mentioned detection device also comprises:
Communication channel is used for the communication between the control unit of above-mentioned detection device and detected equipment.
5, a kind of method that can detect reverse polarity of subscriber circuit comprises:
Step 1, provide checkout gear as claimed in claim 1;
Step 2, grab the line unit subscriber line circuit to be detected is grabbed line;
Step 3, analog station group unit provide a caller analog station and a called analog station, and this caller analog station is connected subscriber line circuit to be measured and above-mentioned subscriber line circuit unit respectively with called analog station;
Step 4, above-mentioned caller analog station off-hook, and signal tone generation unit and antipole detecting unit be connected to subscriber line circuit to be measured;
Step 5, antipole detecting unit detect A, the B line polarity of subscriber line circuit to be measured, and the signal tone generation unit is called out called analog station;
Step 6, called analog station is connected to the time division multiplexing crosspoint, called analog station off-hook;
Step 7, antipole detecting unit detect A, the B line polarity of subscriber's line to be measured.
6, a kind of method that can detect reverse polarity of subscriber circuit according to claim 5 is characterized in that, in the above-mentioned steps 3, this caller analog station is connected to subscriber line circuit to be measured, and this called analog station is connected to the subscriber line circuit of above-mentioned detection device.
7, according to claim 5 or 6 described a kind of methods that can detect reverse polarity of subscriber circuit, it is characterized in that above-mentioned detection method also comprises:
One relay unit is provided, and the analog station that above-mentioned analog station group unit is provided by this relay unit is connected to subscriber line circuit to be measured and above-mentioned subscriber line circuit unit, and the signal tone generation unit is connected on the subscriber line circuit to be measured.
8, a kind of method that can detect reverse polarity of subscriber circuit according to claim 7 is characterized in that above-mentioned detection method also comprises:
One communication channel is provided, makes the control unit of above-mentioned detection device and detected equipment carry out communication by this communication channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100911601A CN101287038B (en) | 2007-04-10 | 2007-04-10 | Device and method capable of detecting reverse polarity of subscriber circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100911601A CN101287038B (en) | 2007-04-10 | 2007-04-10 | Device and method capable of detecting reverse polarity of subscriber circuit |
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| Publication Number | Publication Date |
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| CN101287038A true CN101287038A (en) | 2008-10-15 |
| CN101287038B CN101287038B (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100911601A Active CN101287038B (en) | 2007-04-10 | 2007-04-10 | Device and method capable of detecting reverse polarity of subscriber circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834954A (en) * | 2010-05-24 | 2010-09-15 | 中兴通讯股份有限公司 | Line detection apparatus and method for fixed phone |
| CN105722106A (en) * | 2014-12-03 | 2016-06-29 | 中国移动通信集团黑龙江有限公司 | Simulation circuit switched fallback signaling connection monitoring method and monitoring system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1244906B (en) * | 1991-01-23 | 1994-09-13 | Vitroselenia Spa | EXTENDED BAND MOBILE RADIO BRIDGE FOR MULTIPLE REFLECTION ENVIRONMENTS AND HIGH CAPACITY. |
| CN2157640Y (en) * | 1993-04-07 | 1994-02-23 | 袁平 | Inverted signal generator for telephone |
| CN1933511B (en) * | 2006-09-28 | 2010-08-11 | 华为技术有限公司 | User circuit antipole realizing system and method |
-
2007
- 2007-04-10 CN CN2007100911601A patent/CN101287038B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834954A (en) * | 2010-05-24 | 2010-09-15 | 中兴通讯股份有限公司 | Line detection apparatus and method for fixed phone |
| CN105722106A (en) * | 2014-12-03 | 2016-06-29 | 中国移动通信集团黑龙江有限公司 | Simulation circuit switched fallback signaling connection monitoring method and monitoring system |
| CN105722106B (en) * | 2014-12-03 | 2020-06-09 | 中国移动通信集团黑龙江有限公司 | Monitoring method and monitoring system for simulated circuit domain fallback signaling connection |
Also Published As
| Publication number | Publication date |
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| CN101287038B (en) | 2012-07-11 |
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