CN103888185B - Detection method and device of optical network unit - Google Patents
Detection method and device of optical network unit Download PDFInfo
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- CN103888185B CN103888185B CN201410112159.2A CN201410112159A CN103888185B CN 103888185 B CN103888185 B CN 103888185B CN 201410112159 A CN201410112159 A CN 201410112159A CN 103888185 B CN103888185 B CN 103888185B
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Abstract
The invention discloses a detection method and device of an optical network unit and a system. The method includes the steps of receiving time slots of all optical network unit uploading optical signals in an optical line terminal domain broadcast by an optical line terminal, acquiring uploading time of the optical network unit uploading optical signals in the optical line terminal domain, judging whether the uploading time is the same as the time slots of the optical network unit uploading optical signals or not, and determining that the optical network unit is a rogue optical network unit if the uploading time is not the same as the time slots of the optical network unit uploading optical signals. Through the method, the rogue optical network unit in the optical network system can be can be detected fast and accurately.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of detection method of optical network unit and device.
Background technology
Pon (passive optical network, EPON) network is a kind of fiber-optic transfer of one-to-many and connects
Enter network, its descending employing broadcast mode, up employing time division multiple acess access way.In pon network, the olt of a local side
(optical line terminal, optical line terminal) corresponds to one or more than one onu (optical network
Unit, optical network unit) or ont (optical network terminal, ONT Optical Network Terminal), wherein, ont is considered as
For special onu.
In the downstream direction, the downlink information unification of olt is sent to all onu by the descending optical wavelength of a fixation
On, in the upstream direction, all of onu, according to the rule of time division multiplex up light path bandwidth, lights in specific time slot, that is,
Onu is up luminous according to the bandwidth allocation instruction of olt, and rogue onu is exactly the not bandwidth allocation indication light according to olt
onu.
According to luminous time angle to distinguish, rogue onu is divided into: long hair light rogue onu, any time are all being sent out
The rogue onu of light, the time period indicating in non-olt light rogue onu it may be possible to light in advance, or are delayed to turn off.
According to whether accepting the angle of olt control to distinguish, rogue onu is divided into: is not responding to the control command of olt
Rogue onu, non-rogue onu, the rogue onu of the control command of response olt.
From the whether preconfigured angle of rogue onu to distinguish, rogue onu is divided into: pre-configured rogue onu, illegal
The rogue onu that accesses, it is not managed person's accreditation, be the new onu accessing, be the rogue onu being in discovery state automatically yet.
The method detecting rogue onu in prior art: olt detection is up to open in sky window time slot, and (up sky window time slot of opening is
Refer to institute onu under olt domain and all do not upload optical signal) whether there is onu to upload optical signal, if having, obtain the identity of this onu,
And determine that this onu is rogue onu.And the method detecting rogue onu in prior art, if rogue onu is without identity, to the greatest extent
Pipe olt receives optical signal in up opening in sky window time slot, and cannot determine which optical network unit this optical signal belongs to, and then
Cannot determine which optical network unit is rogue's optical network unit；Or, rogue onu does not upload in up opening in sky window time slot
Optical signal, but upload in other normal onu and in the time slot of optical signal, upload optical signal, then olt equally cannot detect stream
Common people onu.
Content of the invention
The invention mainly solves the technical problem of providing a kind of detection method of optical network unit and device, optical-fiber network system
System, can rapidly and accurately detect the rogue's optical network unit in optical network system.
For solving above-mentioned technical problem, one aspect of the present invention is: provides a kind of inspection of optical network unit
Survey method, uploads optical signal including all optical network units under described optical line terminal domain receiving optical line terminal broadcast
Time slot；Obtain the uplink time that the optical network unit under described optical line terminal domain uploads optical signal；When judging described upload
Between upload optical signal with the described described optical network unit receiving time slot whether identical；If differing it is determined that described light
NE is rogue's optical network unit.
Wherein, methods described also includes: sends alarm signal to network operation server, wherein, described alarm signal is taken
Mark with described rogue's optical network unit.
Wherein, the described step obtaining the uplink time that described optical network unit uploads optical signal includes: receives beam splitter
The optical signal that the optical fiber given up uploads；The optical signal that the optical fiber that described beam splitter is given up uploads is converted into the signal of telecommunication；To described
The signal of telecommunication is sampled, and obtains the level of sampled point；Whether the level judging described sampled point is high level；If described collection
The level of point is high level, then record the described sampling time that the signal of telecommunication is sampled, and wherein, the described sampling time is described
Optical network unit uploads the uplink time of optical signal.
Wherein, after the described optical signal uploading described optical network unit converts the step of the signal of telecommunication, described to institute
Before stating the step that the signal of telecommunication is sampled, also include: the described signal of telecommunication is amplified；Described the described signal of telecommunication is adopted
The step of sample is particularly as follows: sample to the signal of telecommunication after described amplification.
For solving above-mentioned technical problem, another technical solution used in the present invention is: provides a kind of optical network unit
Detection means, including the first receiver module, for receiving all under described optical line terminal domain of optical line terminal broadcast
Optical network unit uploads the time slot of optical signal；
Second receiver module, for receiving the optical network unit under described optical line terminal domain that beam splitter is distributed
The optical signal passing；Acquisition module, uploads the upload of optical signal for obtaining the optical network unit under described optical line terminal domain
Time；Judge module, for judge described uplink time and the described described optical network unit receiving upload optical signal when
Whether gap is identical；Determining module, for when described judge module determines and differs, determining that described optical network unit is rogue
Optical network unit.
Wherein, described acquisition module includes: acquisition module includes: receiving unit, for receiving the optical fiber that beam splitter is given up
The optical signal uploading；Photoelectric conversion unit, the optical signal that the optical fiber for giving up described beam splitter uploads is converted into the signal of telecommunication；
Collecting unit, for sampling to the described signal of telecommunication, and obtains the level of sampled point；Judging unit, for adopting described in judging
Whether the level of sampling point is high level；Record determining unit, for determining the level of described sampled point in described judging unit
During for high level, record the sampling time of the described signal of telecommunication, and the described sampling time is uploaded light as described optical network unit
The uplink time of signal.
Wherein, described acquisition module also includes amplifying unit；Described amplifying unit, for amplifying the described signal of telecommunication；Institute
State collecting unit specifically for sampling to the signal of telecommunication after described amplification, and obtain the level of sampled point.
Wherein, described device also includes sending module；Described sending module, reports to the police for sending to network operation server
Signal, wherein, described alarm signal carries the mark of described rogue's optical network unit.
For solving above-mentioned technical problem, another technical scheme that the present invention adopts is: provides a kind of optical network system, is
System includes optical line terminal, beam splitter, light splitting detection means and at least one optical network unit；Described light splitting detection means includes
Detection module；At least one optical network unit described is all connected with described detection module；Described detection module connects described beam splitter,
Described optical line terminal connects the optical fiber that described beam splitter is given up；Described detection module is used for receiving described optical line terminal broadcast
The all optical network units under described optical line terminal domain upload the time slot of optical signals；Described detection module is additionally operable to obtain
Optical network unit under described optical line terminal domain uploads the uplink time of optical signal, and whether judges described uplink time
Identical with the time slot that the described optical network unit receiving uploads optical signal, if differing it is determined that described optical network unit is
Rogue's optical network unit.
Wherein, light splitting detection means includes spectral module；At least one optical network unit described is all by described light splitting mould
Block connects described detection module；Described spectral module connects described beam splitter；Described spectral module, for by optical network unit
The optical signal passing is distributed to detection module and beam splitter.
The invention has the beneficial effects as follows: it is different from the situation of prior art, detection means of the present invention obtains optical network unit
Upload the upload time slot of optical signal, and when receiving the optical signal of this optical network unit upload, obtain on this optical network unit
Pass the uplink time of optical signal, by comparing uplink time and uploading this optical network unit corresponding upload optical signal in slot table
Time slot whether identical, if both differ, illustrate that this optical network unit does not upload light letter according to optical line terminal regulation
Number, so that it is determined that this optical network unit is rogue's optical network unit, quick and accurate, and then rogue's optical network unit can be entered
Row is processed, and decreases the impact to uplink service, improves users satisfaction degree.
Brief description
Fig. 1 is the structure chart of optical network system embodiment of the present invention；
Fig. 2 is that in optical network system embodiment of the present invention, the schematic diagram that part synthesizes optical signal given up by beam splitter；
Fig. 3 is in optical network system embodiment of the present invention, the part that beam splitter is given up to be synthesized optical signal to introduce detection
The schematic diagram of module；
Fig. 4 is the structure chart of optical network unit detection means embodiment of the present invention；
Fig. 5 is the flow chart of the detection method embodiment of optical network unit of the present invention；
Fig. 6 be optical network unit of the present invention detection method embodiment in obtain optical network unit upload optical signal upper
The flow chart of biography time.
Specific embodiment
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
Refer to Fig. 1, as illustrated, system include optical line terminal 10, beam splitter 11, light splitting detection fill 12 and at least one
Individual optical network unit 13.
Light splitting detection means 12 includes detection module 121, and at least one optical network unit 13 is all connected with detection module 121,
Detection module 121 connects beam splitter 11, and optical line terminal 10 connects beam splitter 11.Optical network unit 13 includes normal optical-fiber network list
Unit and rogue's optical network unit, and optical network unit 13 all belongs under the domain of optical line terminal 10.The quantity of beam splitter 11
At least one, beam splitter 11 is cascaded by one-level one-level, finally connects optical line terminal 10, if the quantity of beam splitter 11 is many
Individual, then beam splitter 11 can be divided into one-level beam splitter, secondary light-splitting device ...., n level beam splitter.
Optical line terminal 10 manages the time slot that all optical network units 13 under its domain upload optical signal, and broadcasts institute under its domain
Optical network unit 13 is had to upload the time slot of optical signal, so that the optical network unit 13 under its domain can obtain its own uploads light letter
Number time slot.Light splitting detection means 12 is a kind of special optical network unit 13, and light splitting detection means 12 also receives optical link eventually
The time slot that all optical network units 13 under its domain upload optical signal is broadcasted at end 10, so that light splitting detection means 12 knows light
Under road terminal 10 domain, each optical network unit 13 uploads the time slot of optical signal, and wherein, optical line terminal 10 can be marked with time slot
Carry the time slot that all optical network units 13 upload optical signal, and time slot table is it is also possible to broadcast one by one on optical network unit 13
Pass the time slot of optical signal.
Detection module 121 receive optical line terminal 10 broadcast on all optical network units under optical line terminal 10 domain
Pass the time slot of optical signal, obtain the uplink time that the optical network unit 13 under optical line terminal 10 domain uploads optical signal, and
Whether the time slot judging uplink time and uploading optical signal with this optical network unit 13 of receiving identical, if differ it is determined that
Optical network unit 13 is rogue's optical network unit.Wherein, the actual uplink time uploading optical signal of optical network unit 13 and light
When the time slot of this optical network unit 13 upload optical signal of road terminal broadcast is inconsistent, then illustrate that this optical network unit 13 is not pressed
Irradiation line terminal 10 requires to upload optical signal, and this optical network unit 13 is not controlled by optical line terminal 10, this optical-fiber network list
Unit 13 is rogue's optical network unit.
Light splitting detection means 12 also includes spectral module 122.Then at least one optical network unit 13 is all by spectral module
122 connection detection module 121, specifically, spectral module 122 connection detection module 121 and optical network unit 13 respectively.Light splitting
Module 122 is also connected with beam splitter 11, and the optical signal that optical network unit uploads 13 is distributed to detection module 121 by spectral module 122
With beam splitter 11.Specifically, each optical network unit 13 is all connected with a spectral module 122, and spectral module 122 is by light net
The road optical signal that network unit 13 uploads is divided into two ways of optical signals, and a road optical signal of spectral module 122 is sent to beam splitter 11, separately
Light splitting detection means 12 is sent on one tunnel, and wherein, two optical signals that beam splitter 13 is distributed are identical, and and optical network unit
The optical signal of 13 uploads is also identical.
Then the uplink time method of detection module 121 acquisition optical network unit 13 upload optical signal includes: receives light splitting
The optical signal that the optical network unit 13 that module 122 is distributed uploads, the optical signal that optical network unit 13 is uploaded converts the signal of telecommunication,
And the signal of telecommunication is sampled, obtain the level of sampled point, and judge whether the level of sampled point is high level, if high electric
Flat, then record the sampling time, wherein, the sampling time is the uplink time that optical network unit 13 uploads optical signal.Wherein, from light net
Network unit 13 lights, and uploads optical signal, to light splitting detection means 12, optical signal is converted the signal of telecommunication, and the signal of telecommunication is sampled
Between time interval extremely short, can slightly not disregard, therefore, the sampling time can be equal to uplink time.Substitute real at other
Apply in mode, after light splitting detection means 12 receives optical signal, record the reception time, light splitting detection means 12 is by optical network unit 13
The upload optical signal conversion signal of telecommunication, and the signal of telecommunication is sampled, obtains the level of sampled point, and the electricity judging sampled point
Whether flat is high level, if high level, then the uplink time that the time that receives uploads optical signal as optical network unit 13.Its
In, light splitting detection means 12 receives the time interval also pole that optical signal and optical network unit 13 light, upload between optical signal
Short, can slightly not disregard, then light splitting detection means 12 receives reception time of optical signal and also can be equal on optical network unit 13
Pass the uplink time of optical signal.
What deserves to be explained is: in embodiments of the present invention, optical signal is converted the signal of telecommunication, the signal of telecommunication is sampled,
And judge whether the level of collection point is high level, if high level, then there is signal explanation collection point, certainly, in other enforcements
It is also possible to represent collection point with low level have signal in mode, those skilled in the art can set representative according to practical situation and adopt
The level that collection point has signal is high level or low level.
Further, obtain the level of sampled point for convenience, also the signal of telecommunication can be amplified, then to the electricity after amplifying
Signal is sampled.
After detection module 121 determines rogue's optical network unit 13, send alarm signal to network operation server (not shown)
Number, wherein, alarm signal carries the mark of rogue's optical network unit.
It should be understood that the light splitting detection means 12 in accompanying drawing 1 is independent of beam splitter 11, but those skilled in the art
Light splitting detection means 12 can also be arranged in beam splitter 11, light splitting detection means 12 and beam splitter 11 are formed in one.Enter
One step, when the two ways of optical signals of the upload of two optical network units 13 being synthesized due to beam splitter 11, two-way can be generated
Identical synthesis optical signal, synthesis optical signal comprises the two ways of optical signals before synthesizing, and beam splitter 11 will upload wherein one tunnel synthesis light
Signal, gives up its another road and synthesizes optical signal, as shown in Fig. 2 optical network unit 1 and optical network unit 2 are uploaded by beam splitter 11
Optical signal synthesized, generate synthesis optical signal 1 and synthesis optical signal 2, and the synthesis optical signal 1 by dotted portion in Fig. 2
Give up, only upload synthesis optical signal 2, then when light splitting detection means 12 and beam splitter 11 are formed in one, light splitting detection means
12 can not include spectral module 122, but the synthesis optical signal that beam splitter 11 is given up introduces detection means 121, such as Fig. 3
Shown.
In embodiments of the present invention, detection module obtains the uplink time that this optical network unit uploads optical signal, and compares
Whether the time slot uploading optical signal with this optical network unit of the optical line terminal broadcast receiving to uplink time is identical, if two
Person differs, then illustrate that this optical network unit does not upload optical signal according to optical line terminal regulation, so that it is determined that this optical-fiber network
Unit is rogue's optical network unit, quick and accurate, and then rogue's optical network unit can be processed, and decreases to up
The impact of business, improves users satisfaction degree.The present invention even can also determine malice optical network unit.
The present invention also provides optical network unit detection means embodiment.Refer to Fig. 4, device 20 includes receiver module
201st, acquisition module 203, judge module 204 and determining module 205.
Receiver module 201 receives all optical network units 24 under optical line terminal 22 domain of optical line terminal 22 broadcast
Upload the upload slot table of the time slot of optical signal, wherein, optical network unit 24 includes rogue's optical network unit and normal light net
Network unit.
Acquisition module 203 obtains the uplink time that this optical network unit 24 uploads optical signal.Judge module 204 judges to upload
Whether the time slot that the time uploads optical signal with the optical network unit 24 receiving is identical.When judge module 204 determines upload
Between with this optical network unit 24 upload optical signal time slot differ when, determining module 205 determine this optical network unit 24 be stream
Common people's optical network unit.
Each optical network unit 24 all can connect a beam splitter 21, and beam splitter 21 is 1 point 2 of beam splitter, beam splitter
The 21 road light uploading optical network unit, are divided into two-way light, and this two-way just identical, and upload with optical network unit
A road light be also identical, a road light is sent to detection means 20 by beam splitter 21, and another road is toward the beam splitter sending in optical-fiber network.
Then acquisition module 203 includes receiving unit 2030, photoelectric conversion unit 2031, collecting unit 2033, judging unit 2034 and note
Record determining unit 2035.
Receiving unit 2030 receives optical network unit 24 upload under optical line terminal domain 22 that beam splitter is distributed
Optical signal.The optical signal that optical network unit 24 uploads is converted the signal of telecommunication by photoelectric conversion unit 2031.Collecting unit 2033 is to electricity
Signal is sampled, and obtains the level of sampled point.Judging unit 2034 judges whether the level of sampled point is high level.Sentencing
When the level that disconnected unit 2034 determines sampled point is high level, record determining unit 2035 records the sampling time of the signal of telecommunication,
And uploaded the uplink time of optical signal the sampling time as this optical network unit 24.In other alternate embodiments, detection
After device 20 receives optical signal, record the reception time, the optical signal conversion electricity that this optical network unit 24 is uploaded by detection means 20
Signal, and the signal of telecommunication is sampled, obtains the level of sampled point, and judges whether the level of sampled point is high level, if
For high level, then uploaded the uplink time of optical signal the reception time as optical network unit 24.
Further, obtain the level of sampled point for convenience, also the signal of telecommunication can be amplified, then to the electricity after amplifying
Signal is sampled, then acquisition module 203 also includes amplifying unit 2032.The signal of telecommunication is amplified by amplifying unit 2032.Collection is single
Unit 2033 is specifically for the signal of telecommunication sampling after amplifying.
It should be understood that the quantity of acquisition module 203 can be multiple, each acquisition module 203 corresponds to beam splitter 21
The road optical signal distributed, is each acquisition module 203 and corresponds to an optical network unit, further, also can be in advance
Set up the corresponding relation of each acquisition module 203 and each optical network unit 24.Wherein, due to the number of acquisition module 203
Amount can be multiple, then receiver module 201, the quantity of acquisition module 203, judge module 204 and determining module 205 be also many
Individual, and each group of receiver module 201, acquisition module 203, judge module 204 and determining module 205 correspond to an optical-fiber network list
Unit 24.
Device 20 also includes sending module 206.Sending module 206 sends alarm signal to network operation server 23, its
In, alarm signal carries the mark of rogue's optical network unit.
In embodiments of the present invention, receiver module 201 receives the optical network unit 24 upload light of optical line terminal broadcast
The upload slot table of signal, when receiving unit 2030 receives the optical signal of optical network unit upload, obtains this optical-fiber network list
Unit uploads the uplink time of optical signal, uploads optical signal by comparing this optical network unit in uplink time and upload slot table
Whether time slot is identical, if both differ, illustrates that this optical network unit does not upload optical signal according to optical line terminal regulation,
So that it is determined that this optical network unit is rogue's optical network unit, quick and accurate, and then rogue's optical network unit can be carried out
Process, decrease the impact to uplink service, improve users satisfaction degree.The present invention even can also determine malice optical-fiber network
Unit.
The present invention also provides the detection method embodiment of optical network unit.Refer to Fig. 5, method includes:
Step s302: all optical network units under optical line terminal domain receiving optical line terminal broadcast upload light letter
Number time slot；
Optical line terminal controls all optical network units under its domain, and uploads slot table by broadcasting to optical network unit,
So that optical network unit knows that itself uploads the time slot of optical signal.If on the time slot that optical network unit is not specified by optical line terminal
Pass optical signal, then this optical network unit is uncontrollable optical network unit, is rogue's optical network unit.
Step s303: obtain the uplink time that optical network unit uploads optical signal；
Each optical network unit configures a beam splitter, and beam splitter is 1 point 2 of beam splitter, and beam splitter is by optical-fiber network list
Unit upload a road optical signal be divided into two ways of optical signals, wherein, this two ways of optical signals is identical, and with original optical-fiber network list
The road optical signal that unit uploads is identical, and original light splitting in optical-fiber network is sent in the two ways of optical signals being separated, a road by beam splitter
Device, detection means is sent on a road.The uplink time obtaining optical network unit upload optical signal can be by converting electricity to by optical signal
Signal, and the signal of telecommunication is sampled, and judge whether the level of sampled point is whether the mode of high level judges the signal of telecommunication
In signal, if there is signal, using the sampling time as uplink time, then step s303 include step s3030, step s3031,
Step s3032, step s3033, step s3034 and step s3035, as shown in Figure 6.
Step s3030: receive the optical signal of the optical network unit upload under optical line terminal domain that beam splitter is distributed；
Step s3031: the optical signal that optical network unit is uploaded converts the signal of telecommunication；
Step s3032: the signal of telecommunication is sampled, and obtains the level of sampled point；
Step s3033: whether the level judging sampled point is high level, if high level, then enters step s3035, no
Then enter step s3034；
Step s3034: termination；
Step s3035: record the sampling time that the signal of telecommunication is sampled, wherein, the sampling time is on optical network unit
Pass the uplink time of optical signal.
In other alternate embodiments, detection means, after receiving optical signal, records the reception time, and by this optical signal
The conversion signal of telecommunication, samples to the signal of telecommunication, obtains the level of sampled point, and judges that whether the level of sampled point is high electric
Flat, if high level, then the time that receives is as the uplink time of optical network unit.
Step s304: whether judge uplink time identical with the time slot of this optical network unit upload optical signal receiving,
If differing, entering step s306, otherwise entering step s305；
Light from optical network unit, upload optical signal, obtain, to detection means, the upload that optical network unit uploads optical signal
Time interval between time is extremely short, can slightly not disregard it is possible to using uplink time as optical network unit luminous when
Between.
Step s305: stopping is processed；
Step s306: determine that optical network unit is rogue's optical network unit.
Further, method also includes:
Step s307: send alarm signal to network operation server, wherein, alarm signal carries rogue's optical network unit
Mark.
Network operation server receives alarm signal, rogue's optical network unit can be processed, for example: to light
Road terminal sending signal, so that when optical line terminal receives the optical signal that rogue's optical network unit uploads, do not enter to this optical signal
Row is processed, and abandons this optical signal etc..
In embodiments of the present invention, the optical network unit receiving optical line terminal broadcast uploads the upload time slot of optical signal
Table, when receiving the optical signal of optical network unit upload, obtains the uplink time that this optical network unit uploads optical signal, passes through
Whether compare uplink time identical with the time slot uploading this optical network unit upload optical signal in slot table, if both differ,
Then illustrate that this optical network unit does not upload optical signal according to optical line terminal regulation, so that it is determined that this optical network unit is rogue
Optical network unit, quick and accurate, and then rogue's optical network unit can be processed, decrease the shadow to uplink service
Ring, improve users satisfaction degree.The present invention even can also determine malice optical network unit.
The foregoing is only embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization is originally
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, is included within the scope of the present invention.
Claims (6)
1. a kind of detection method of optical network unit is it is characterised in that include:
The all optical network units under described optical line terminal domain receiving optical line terminal broadcast upload the time slot of optical signal；
Obtain the uplink time that the optical network unit under described optical line terminal domain uploads optical signal；
Judge whether the time slot that described uplink time uploads optical signal with the described described optical network unit receiving is identical；
If differing it is determined that described optical network unit is rogue's optical network unit；
The described step obtaining the uplink time that described optical network unit uploads optical signal includes:
Receive the optical signal of the optical fiber upload that beam splitter is given up；
The optical signal that the optical fiber that described beam splitter is given up uploads is converted into the signal of telecommunication；
The described signal of telecommunication is sampled, and obtains the level of sampled point；
Whether the level judging described sampled point is high level；
If the level of described sampled point is high level, record the described sampling time that the signal of telecommunication is sampled, wherein, described
Sampling time is the uplink time that described optical network unit uploads optical signal.
2. method according to claim 1 is it is characterised in that methods described also includes:
Send alarm signal to network operation server, wherein, described alarm signal carries the mark of described rogue's optical network unit
Know.
3. method according to claim 1 is it is characterised in that the described optical signal uploading described optical network unit converts
After the step of the signal of telecommunication, before the described step that the described signal of telecommunication is sampled, also include:
The described signal of telecommunication is amplified；
The described step that the described signal of telecommunication is sampled is particularly as follows: sample to the signal of telecommunication after described amplification.
4. a kind of detection means of optical network unit is it is characterised in that include:
First receiver module, for receiving all optical network units under described optical line terminal domain of optical line terminal broadcast
Upload the time slot of optical signal；
Acquisition module, uploads the uplink time of optical signal for obtaining the optical network unit under described optical line terminal domain；
Judge module, for judging the time slot of described uplink time and the described described optical network unit upload optical signal receiving
Whether identical；
Determining module, for when described judge module determines and differs, determining that described optical network unit is rogue's optical-fiber network
Unit；
Described acquisition module includes:
Receiving unit, for receiving the optical signal that the optical fiber that beam splitter is given up uploads；
Photoelectric conversion unit, the optical signal that the optical fiber for giving up described beam splitter uploads is converted into the signal of telecommunication；
Collecting unit, for sampling to the described signal of telecommunication, and obtains the level of sampled point；
Judging unit, whether the level for judging described sampled point is high level；
Record determining unit, when the level for determining described sampled point in described judging unit is high level, record is described
The sampling time of the signal of telecommunication, and uploaded the uplink time of optical signal the described sampling time as described optical network unit.
5. device according to claim 4 is it is characterised in that described acquisition module also includes amplifying unit；
Described amplifying unit, for amplifying the described signal of telecommunication；
Described collecting unit is specifically for sampling to the signal of telecommunication after described amplification, and obtains the level of sampled point.
6. device according to claim 4 is it is characterised in that described device also includes sending module；
Described sending module, for sending alarm signal to network operation server, wherein, described alarm signal carries described stream
The mark of common people's optical network unit.
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| CN105337657B (en) * | 2014-08-15 | 2018-08-24 | 上海诺基亚贝尔股份有限公司 | Method and device in passive optical network for determining rogue ONU |
| CN104967885B (en) * | 2015-03-27 | 2019-01-11 | 哈尔滨工业大学深圳研究生院 | A kind of method and system for advertisement recommendation based on video content perception |
| CN109428787B (en) * | 2017-09-05 | 2020-07-28 | 中国电信股份有限公司 | Method for identifying abnormity of optical line terminal and optical network unit |
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| CN103036612A (en) * | 2012-12-18 | 2013-04-10 | 华为技术有限公司 | Detection method, isolation method and device of rascal optical network unit (ONU) |
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| CN101651492A (en) * | 2008-08-15 | 2010-02-17 | 华为技术有限公司 | Remote transmission device, remote transmission system and abnormal luminous fault processing method for optical access network |
| US8582969B1 (en) * | 2010-11-30 | 2013-11-12 | Adtran, Inc. | Passive optical network (PON) having optical network unit (ONU) using feedback to detect rogue conditions and related method |
| CN102075244A (en) * | 2010-12-30 | 2011-05-25 | 北京格林伟迪科技有限公司 | Method for diagnosing constant optical network units in Ethernet passive optical network |
| CN102142897A (en) * | 2011-03-29 | 2011-08-03 | 华为技术有限公司 | Detection method and device of ONU (optical network unit) as well as passive optical network system |
| CN103036612A (en) * | 2012-12-18 | 2013-04-10 | 华为技术有限公司 | Detection method, isolation method and device of rascal optical network unit (ONU) |
| CN103560823A (en) * | 2013-11-08 | 2014-02-05 | 烽火通信科技股份有限公司 | Device and method for detecting whether ONUs emit long light |
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