CN102098100A - Method for automatically monitoring and maintaining optical cable - Google Patents
Method for automatically monitoring and maintaining optical cable Download PDFInfo
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Abstract
The invention discloses a method for automatically monitoring and maintaining an optical cable. The method comprises the following steps of: automatically monitoring the power of the optical cable by a power meter and giving an alarm; when the power of the optical cable is alarmed, determining the alarm level of the optical power, and driving an optical time domain reflectometer module to test the optical cable; automatically analyzing whether the optical cable is broken and determining the breakpoint distance according to a test result; automatically calculating the geographical position of the breakpoint through optical cable facility information; automatically transmitting a short message to the mobile phone of an optical cable maintainer; and making an emergency maintenance by the maintainer or a manager. The invention is characterized in that: the method replaces the traditional polling mode so as to reduce the electric consumption, greatly improve the cruising capability of a handheld intelligent terminal, and improve the availability of the whole system; the optical cable is not required to be communicated with a server frequently so as to greatly save a general packet radio service (GRPS) flow; and when the optical cable is out of service, the server immediately transmits the message to the handheld intelligent terminal; and compared with the polling mode, the method has higher real time.
Description
Technical field
The present invention relates to a kind of optical cable maintenance method.Particularly relate to the higher optic cable automatic monitoring maintaining method of a kind of real-time.
Background technology
Along with the development of optical fiber communication technology and the continuous expansion of optical fiber communication network, the large-scale application of optic cable automatic monitoring technology, how quicker, more high-quality is repaired optical cable, it is increasingly important to reduce the optical cable maintenance cost.
Present optical cable monitoring system is after monitoring Cable's Fault, at first adopt manual type to inquire about, calculate the Position Approximate of Cable's Fault, passing through paper document or modes such as phone, mail then with information notification associated maintenance personnel, generally is that several attendants investigate by the mode that progressively reduces the scope.
Traditional optical cable maintenance flow process is roughly as shown in Figure 1:
The first step, SDH (synchronous digital hierarchy) or related system alarm;
Second step manually judged whether to exist interruption of optical cables, was then to enter for the 3rd step, otherwise will not handles;
In the 3rd step, the manager of maintenance department tells by telephone;
In the 4th step, hand-held OTDR (optical time domain reflectometer) instrument of the manager of maintenance department enters the machine room test;
The 5th step is according to test result hand computation breakpoint location;
In the 6th step, the attendant that tells by telephone keeps in repair.
Need the attendant to use hand-held OTDR to enter the machine room test in traditional optical cable maintenance flow process, the result who tests out also needs hand computation to arrive corresponding geographical position, reinform the associated maintenance personnel and rush to repair, from finding that fault is to notifying the related personnel to go maintenance often to need several hours.
In addition, on hand-held mobile terminal, polling mode is mainly adopted in traditional application, and as saying the word at regular intervals to the current alarm status of server lookup, the promptness of this mode mainly is to be decided by the interval of poll, when the polling interval is long, promptness is poor, but power consumption and use traffic are little, polling interval hour, promptness is good, but power consumption and flow are all bigger.The GPRS traffic fee can be said to be cheaper at present, and subject matter is that promptness and power consumption exist contradiction.
As above as can be seen, traditional mode exists that efficient is low, information is transmitted untimely, defectives such as the investigation scope big, labor intensive material resources.
Summary of the invention
Technical problem to be solved by this invention is, a kind of saving electric power is provided, and saves the GRPS flow, and real-time is higher, more automatic optic cable automatic monitoring maintaining method.
The technical solution adopted in the present invention is: a kind of optic cable automatic monitoring maintaining method comprises the steps:
1) power meter is monitored the alarm of optical cable power automatically;
2) when the alarm of optical cable power occurring, determine luminous power alarm grade, drive the optical time domain reflectometer module optical cable is tested;
3) analyze automatically according to test result whether optical cable interrupts and definite breakpoint distance;
4) calculate the breakpoint geographical position automatically by fiber optic cable facility information;
5) automatically send and activate message to optical cable maintenance personnel mobile phone and start the handheld terminal program, the attendant checks the test analysis curve on handheld terminal, the analysis of failure positional information;
6) maintenance or administrative staff rush to repair according to the result of step 5 analysis.
The monitor optical that the light source of the described optical cable power of step 1 sends for the opposite end light source, the professional light of telling from system and from three kinds of modes of monitoring light of light protection equipment any one.
The described luminous power alarm of step 2 grade is divided into level Four, threshold value is respectively 0.5dB, 1dB, 3dB and 5dB, respectively corresponding prompt alarm, minor alarm, mainly alarm and critical alarm use the parameter that pre-sets to test when power descends to producing main alarm and start optical time domain reflectometer when reaching 3dB.
The described automatic calculating breakpoint of step 4 geographical position is meant based on fiber optic cable facility information, adopt certain approximating method to calculate the GPS information of breakpoint location, wherein fiber optic cable facility information is completion information importing or manual being entered in the cable resource database by optical cable, comprises markstone, Ren Jing, joint, electric pole.
The described automatic transmission activation message of step 5 is to optical cable maintenance personnel mobile phone and start the handheld terminal program, and the attendant checks the test analysis curve on handheld terminal, and the analysis of failure positional information comprises the steps:
1) server sends and activates the particular port of message to hand-held intelligent terminal;
2) hand-held intelligent terminal receives the activation message of this particular port;
3) hand-held intelligent terminal starts the handheld terminal program automatically;
4) the handheld terminal program uses GPRS to carry out data interaction with server;
5) the handheld terminal program presents alarm with sound, light, the multiple mode of vibrations.
6) attendant checks test curve on the handheld terminal program, the particular location of analysis of failure, and use the self-defining test parameter test operation of calling the roll;
Process 1 described server sends and activates the particular port of message to hand-held intelligent terminal, is that server sends the designated port of a specific SMS message to hand-held intelligent terminal by prior mounted GSM modulator-demodulator.
Process 3 described handheld terminal programs are to develop according to MIDP 2.0 and CLDC 1.0 standards on request, and are to use same port numbers with server.
Process 4 is after terminal program starts, and adopts the GPRS mode to be connected on the server, and communicates with server by the self defined interface agreement, obtains the details of fault time, position and curve.
Process 6 comprises that also maintenance or administrative staff can also check the optical cable test curve by the terminal program that operates in the mobile phone, further analysis, fault location reason, position.
Optic cable automatic monitoring maintaining method of the present invention has following characteristics:
1. no longer adopt traditional polling mode, saved power consumption, improve the flying power of hand-held intelligent terminal greatly, strengthened the availability of whole system.
2. need not often and server communicates, saved the GRPS flow greatly.
3. when optical cable broke down, server sent message immediately to hand-held intelligent terminal, compares polling mode, and real-time is higher.
Description of drawings
Fig. 1 is traditional optical cable maintenance flow chart;
Fig. 2 is an optical cable maintenance flow chart of the present invention;
Fig. 3 is the flow chart that sends short messages to optical cable maintenance personnel mobile phone among the present invention;
Fig. 4 is a system configuration schematic diagram of realizing the inventive method.
Embodiment
Below in conjunction with embodiment and accompanying drawing optic cable automatic monitoring maintaining method of the present invention is made a detailed description.
Fig. 4 is the system that realizes optic cable automatic monitoring maintaining method of the present invention, includes: local area network (LAN) 010; Network level webmaster 020 is communicated by letter with local area network (LAN) 010 by CORBA northbound interface 030; Two client terminals are directly communicated by letter with local area network (LAN) 010; NE-level webmaster 040 and database 050 are directly communicated by letter with local area network (LAN) 010; Also be provided with two fiber optic cable monitor equipment 070, two light protection equipment 080 and two optical amplifier arrangements 090, they are all directly communicated by letter with local area network (LAN) 010; Described local area network (LAN) 010 sends information by fire compartment wall 100 to the wireless base station, and local area network (LAN) 010 sends to palmtop PC or smart mobile phone 130 and regular handset 120 by GPRS/GSM respectively with the information of local area network (LAN) 010.
As shown in Figure 2, optic cable automatic monitoring maintaining method of the present invention comprises the steps:
1) power meter is monitored the alarm of optical cable power automatically;
Be meant that power meter monitors the luminous power of optical fiber in real time, after luminous power had reduced to a certain degree, power meter can produce alarm; The source of this luminous power can be any one in following three kinds of modes: the 1. monitor optical sent of opposite end light source; 2. the professional light of telling from system (generally adopting 90: 10 splitting ratio) to not influence of system business; 3. protect the monitoring light of equipment from light.
2) when the alarm of optical cable power occurring, determine luminous power alarm grade, drive OTDR (optical time domain reflectometer) module optical cable is tested;
After the master control that is meant RTU (remote testing unit) detects this alarm, can analyze automatically and the switches light switch to the monitoring fibre core of optical cable, driving OTDR module is tested optical cable; Among the present invention, can be divided into level Four to luminous power alarm, threshold value is respectively 0.5dB, 1dB, 3dB and 5dB, respectively corresponding prompt alarm, minor alarm, mainly alarm and critical alarm; General power descends and reaches 3dB and will start OTDR and test.
3) analyze automatically according to test result whether optical cable interrupts and definite breakpoint distance;
After being meant that test is finished, automatically test curve being analyzed, and calculated the abort situation of representing optical cable with length; This length is meant the optical length of OTDR module to abort situation.
4) calculate the breakpoint geographical position automatically by fiber optic cable facility information;
After being meant the optical length of abort situation of obtaining step 3, the information by the fiber optic cable facility database adopts the method for fitting a straight line to calculate (referring to example 1) again, draws the GIS geography information and the GPS abort situation of this fault point; Fiber optic cable facility information is by the completion information importing of optical cable or manual being entered in the cable resource database.General establishment type comprises markstone, Ren Jing, joint and electric pole etc.
5) send short messages to optical cable maintenance personnel mobile phone automatically, automatic transmission activation message is to optical cable maintenance personnel mobile phone and start the handheld terminal program, and the attendant checks the test analysis curve on handheld terminal, the analysis of failure positional information;
Be meant result with step 4, system sends in associated maintenance personnel's the mobile phone in the mode of short message or in the mode of GPRS automatically, do not have at optical cable under the situation of fault (this also is to have accounted for most times), handheld terminal does not need to carry out with server any mutual.When detecting optical cable and have fault, server end then starts this flow process.As shown in Figure 3, this flow process adopts up-to-date Push activation technique, comprises the steps:
A) server sends and activates the particular port of message to hand-held intelligent terminal;
After being meant that server detects and analyzes optical cable and break down tested optical cable by OTDR, server sends the designated port of a specific SMS (short message) message to hand-held intelligent terminal by prior mounted GSM (global system for mobile communications) modulator-demodulator.
B) hand-held intelligent terminal receives the activation message of this particular port;
Be meant that hand-held intelligent terminal receives this message by wireless network, in fact, this particular message and common SMS short message are very similar, and rate too.
C) hand-held intelligent terminal starts terminal program;
Be meant hand-held intelligent terminal after receiving this particular message, will activate prior mounted terminal program automatically.Certainly, this terminal program must be developed according to MIDP 2.0 and CLDC 1.0 standards on request, and must use same port numbers with server.
D) terminal program uses GPRS to carry out data interaction with server;
After being meant that terminal program starts, adopting the GPRS mode to be connected on the server, and communicate with server, obtain various details such as fault time, position and curve by the self defined interface agreement.
E) terminal program presents alarm with sound, light, the multiple mode of vibrations.
Be meant that terminal program after having obtained the data message that needs, presents alarm with sound, vibrations or flash of light mode, rush to repair as early as possible to remind the attendant.
F) attendant checks the test analysis curve on handheld terminal, the analysis of failure positional information;
6) maintenance or administrative staff rush to repair.Safeguard or administrative staff rush for the position of fault immediately and rush to repair after obtaining the information that step 5 obtains.This maintenance or administrative staff can also use the test of calling the roll of self-defining parameter by operating in terminal program in the mobile phone, check the optical cable test curve, further analysis, fault location reason, position.
Example 1: Cable's Fault point position calculation
Suppose that A point longitude and latitude is respectively ALo, the longitude and latitude BLo that ALn, B are ordered, BLn, terrestrial equator radius are Rc, and earth polar radius is Rj, and circumference ratio is PI, and the fault point is D from A point distance.
1) at first, calculate the orientation angle that the relative A of B is ordered:
Make dx=(BLo*PI/180-ALo*PI/180) * (Rj+ (Rc-Rj) * (90.-ALa)/90) * cos (ALa*PI/180);
Make dy=(BLa*PI/180-ALa*PI/180) * (Rj+ (Rc-Rj) * (90.-ALa)/90);
Make angle=atan (fabs (dx/dy)) * 180./PI
(if (BLo-ALo) is greater than 0 and or (BLa-ALa) smaller or equal to 0)
Angle=(90.-*angle)+90 then;
(if (BLo-ALo) is smaller or equal to 0 and (BLa-ALa) less than 0)
Angle=*angle+180. then;
(if (BLo-ALo) is less than 0 and (BLa-ALa) more than or equal to 0)
Angle=(90.-*angle)+270 then;
2) calculate the longitude and latitude Lo and the La of breakpoint again;
Make dx=distance*1000*sin (angle*PI/180.);
Make dy=distance*1000*cos (angle*PI/180.);
Lo=(dx/ ((Rj+ (Rc-Rj) * (90.-ALa)/90) * cos (ALa*PI/180))+ALa) * cos (ALa*PI/180) * 180./PI then;
La＝(dy/((Rj+(Rc-Rj)*(90.-ALa)/90)*cos(ALa*PI/180))+ALa))*180./PI。
Claims (9)
1. an optic cable automatic monitoring maintaining method is characterized in that, comprises the steps:
1) power meter is monitored the alarm of optical cable power automatically;
2) when the alarm of optical cable power occurring, determine luminous power alarm grade, drive the optical time domain reflectometer module optical cable is tested;
3) analyze automatically according to test result whether optical cable interrupts and definite breakpoint distance;
4) calculate the breakpoint geographical position automatically by fiber optic cable facility information;
5) automatically send and activate message to optical cable maintenance personnel mobile phone and start the handheld terminal program, the attendant checks the test analysis curve on handheld terminal, the analysis of failure positional information;
6) maintenance or administrative staff rush to repair according to the result of step 5 analysis.
2. optic cable automatic monitoring maintaining method according to claim 1; it is characterized in that the monitor optical that the light source of the described optical cable power of step 1 sends for the opposite end light source, the professional light of telling from system and from three kinds of modes of monitoring light of light protection equipment any one.
3. optic cable automatic monitoring maintaining method according to claim 1, it is characterized in that, the described luminous power alarm of step 2 grade is divided into level Four, threshold value is respectively 0.5dB, 1dB, 3dB and 5dB, respectively corresponding prompt alarm, minor alarm, mainly alarm and critical alarm use the parameter that pre-sets to test when power descends to producing main alarm and start optical time domain reflectometer when reaching 3dB.
4. optic cable automatic monitoring maintaining method according to claim 1, it is characterized in that, the described automatic calculating breakpoint of step 4 geographical position is meant based on fiber optic cable facility information, adopt certain approximating method to calculate the GPS information of breakpoint location, wherein fiber optic cable facility information is completion information importing or manual being entered in the cable resource database by optical cable, comprises markstone, Ren Jing, joint, electric pole.
5. optic cable automatic monitoring maintaining method according to claim 1, it is characterized in that, the described automatic transmission activation message of step 5 is to optical cable maintenance personnel mobile phone and start the handheld terminal program, the attendant checks the test analysis curve on handheld terminal, the analysis of failure positional information comprises following process:
1) server sends and activates the particular port of message to hand-held intelligent terminal;
2) hand-held intelligent terminal receives the activation message of this particular port;
3) hand-held intelligent terminal starts the handheld terminal program automatically;
4) the handheld terminal program uses GPRS to carry out data interaction with server;
5) the handheld terminal program presents alarm with sound, light, the multiple mode of vibrations.
6) attendant checks test curve on the handheld terminal program, the particular location of analysis of failure, and use the self-defining test parameter test operation of calling the roll.
6. optic cable automatic monitoring maintaining method according to claim 5, it is characterized in that, process 1 described server sends and activates the particular port of message to hand-held intelligent terminal, is that server sends the designated port of a specific SMS message to hand-held intelligent terminal by prior mounted GSM modulator-demodulator.
7. optic cable automatic monitoring maintaining method according to claim 5 is characterized in that, process 3 described handheld terminal programs are to develop according to MIDP 2.0 and CLDC 1.0 standards on request, and is to use same port numbers with server.
8. optic cable automatic monitoring maintaining method according to claim 5, it is characterized in that process 4 is after terminal program starts, and adopts the GPRS mode to be connected on the server, and communicate with server by the self defined interface agreement, obtain the details of fault time, position and curve.
9. optic cable automatic monitoring maintaining method according to claim 5 is characterized in that, process 6 comprises that also maintenance or administrative staff can also check the optical cable test curve by the terminal program that operates in the mobile phone, further analysis, fault location reason, position.
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Application publication date: 20110615 |