CN109525311A - A kind of detection method and equipment of dim light ONU - Google Patents
A kind of detection method and equipment of dim light ONU Download PDFInfo
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- CN109525311A CN109525311A CN201710838181.9A CN201710838181A CN109525311A CN 109525311 A CN109525311 A CN 109525311A CN 201710838181 A CN201710838181 A CN 201710838181A CN 109525311 A CN109525311 A CN 109525311A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
Abstract
The detection method and equipment of a kind of dim light ONU are disclosed herein, comprising: acquisition ONU receives optical power value and the distance measurement value of Optical Distribution Network ODN the first of optical line terminal OLT side；Optical power value and ODN distance measurement value are received according to the first of the ONU, determines that the ONU receives optical power value the second of the side OLT, described second receives optical power value to receive the receipts optical power value after deducting after fiber-loss in optical power value by described first；Optical power value is received according to the second of the ONU, determines the dim light of the ONU.The application can accelerate PON network maintenance progress, reduce maintenance cost, and save lower deployment cost.
Description
Technical field
The present invention relates to passive optical network (PON, Passive Optical Network) network technique fields, specifically relate to
And a kind of detection method and equipment of dim light optical network unit (ONU, Optical Network Unit).
Background technique
With the sizable application of fiber to the home (FTTH, Fiber to the home), PON network scale is increasing, fortune
Battalion quotient deploys the optical fiber and ONU of magnanimity, and wherein there may be various problems for some optical fiber, for example are bent, welding
Bad, cold connector production is bad to cause route light decay bigger, and ONU is caused to receive optical power deficiency, causes the bit error rate high, influences line
Road stability.
Therefore, many operators have carried out dim light regulation after having runed a period of time, however, facing to the light of magnanimity
Fibre, sending engineer to user's family to go to detect the receipts optical power of ONU one by one, whether regular fee is too high.The way of the relevant technologies
It is that network management is by acquiring the receipts optical power parameter of ONU optical module, if it find that receiving optical power is lower than threshold value, then it is assumed that it is dim light,
Then engineer is arranged to rectify and improve these routes.However in practice, operator is frequently found the receipts light function of a large amount of ONU
Rate is lower than threshold value, but the receipts optical power of actually major part ONU is normal, for example China Telecom's somewhere corporate statistics find
The receipts optical power of 50% ONU is lower than threshold value, and selective examination finds that many customer services are normal, and the practical receipts optical power of ONU is also normal.
In consideration of it, detecting ONU in such a way that accuracy is higher receives optical power, it is a technical problem to be solved urgently.
Summary of the invention
In order to solve the above-mentioned technical problem, the embodiment of the invention provides the detection methods and equipment of a kind of dim light ONU.
This application provides:
A kind of detection method of dim light optical network unit ONU, comprising:
It acquires ONU and receives optical power value and the distance measurement value of Optical Distribution Network ODN the first of optical line terminal OLT side；
Optical power value and ODN distance measurement value are received according to the first of the ONU, determines that the ONU is received the second of the side OLT
Optical power value, described second receives optical power value to receive the receipts light function after deducting after fiber-loss in optical power value by described first
Rate value；
Optical power value is received according to the second of the ONU, determines the dim light of the ONU.
Wherein, described to receive optical power value and ODN distance measurement value according to the first of the ONU, determine the ONU in the side OLT
Second receive optical power value, comprising: according to the ODN distance measurement value, determine optical power loss value of the ONU on ODN；According to
ONU receives the optical power loss value of optical power value and the ONU on ODN the first of the side OLT, determines the ONU in OLT
The second of side receives optical power value.
Wherein, described to receive optical power value according to the second of the ONU, before obtaining the Dim light measurement result of the ONU, also
Include: that same PON mouthfuls of statistics lower whole ONU second receives optical power value, it is average to obtain described PON mouthfuls of the second receipts optical power
Value；It is described to receive optical power value according to the second of the ONU, determine the dim light of the ONU, comprising: according to the second of current ONU
The difference between optical power value and the second of affiliated PON mouthfuls of current ONU the receipts optical power average value is received, determines the dim light of the ONU
Property.
Wherein, described to receive optical power value according to the second of the ONU, determine the dim light of the ONU, including one of following
Or two:
Optical power value and the second of affiliated PON mouthfuls of current ONU is received by the second of current ONU to receive between optical power average value
Difference and preset threshold value comparison, determine the dim light of the ONU；
Optical power value and the second of affiliated PON mouthfuls of current ONU is received by the second of current ONU to receive between optical power average value
Difference compared with receiving the standard deviation of optical power value with affiliated PON mouthfuls of current ONU lower whole ONU second, determines the dim light of the ONU
Property.
Wherein, described to receive optical power by the difference of current ONU, with affiliated PON mouthfuls of current ONU lower whole ONU second
The standard deviation of value compares, and determines the dim light of the ONU, comprising: the absolute value of the difference described in current ONU and current ONU institute
When PON mouthfuls of the category standard deviation comparison results that whole ONU second receive optical power values down meet different predetermined conditions, described in determination
ONU is the dim light ONU of different stage, and the rank is used to indicate the degree of ONU dim light.
Wherein, whole ONU second receives light under the absolute value Yu current ONU of the difference described in current ONU are PON mouthfuls affiliated
When the standard deviation comparison result of performance number meets different predetermined conditions, determine that the ONU is the dim light ONU of different stage,
Include:
Whole ONU second receives optical power value under the absolute value of the difference described in current ONU and current ONU are PON mouthfuls affiliated
When standard deviation comparison result meets the first predetermined condition, determine that the ONU is level-one dim light ONU；
Whole ONU second receives optical power value under the absolute value of the difference described in current ONU and current ONU are PON mouthfuls affiliated
When standard deviation comparison result meets the second predetermined condition, determine that the ONU is second level dim light ONU；
Whole ONU second receives optical power value under the absolute value of the difference described in current ONU and current ONU are PON mouthfuls affiliated
When standard deviation comparison result is not up to first predetermined condition and the second predetermined condition, determine that the ONU is non-dim light
ONU；
Wherein, the level-one dim light ONU is different from the dim light degree of the second level dim light ONU.
Wherein, described according to the second of the ONU the receipts optical power value, before the dim light for determining the ONU, further includes:
It counts same PON mouthfuls lower whole ONU second and receives optical power value, obtain described PON mouthfuls lower whole ONU second and receive optical power value
Standard deviation.
A kind of detection device of dim light optical network unit ONU, comprising:
Acquisition device receives optical power value and Optical Distribution Network the first of optical line terminal OLT side for acquiring ONU
The distance measurement value of ODN；
Analytical equipment determines that the ONU exists for receiving optical power value and ODN distance measurement value according to the first of the ONU
The second of the side OLT receives optical power value, and the second receipts optical power value is that will detain after fiber-loss in the first receipts optical power value
Except receipts optical power value later；Optical power value is received according to the second of the ONU, determines the dim light of the ONU.
Wherein, the analytical equipment is also used to count same PON mouthfuls lower whole ONU second and receives optical power value, obtains institute
State PON mouthfuls second receives optical power average value；And specifically for receiving optical power value and current ONU according to the second of current ONU
The second of affiliated PON mouthfuls receives the difference between optical power average value, determines the dim light of the ONU.
Wherein, the analytical equipment, specifically for determining the dim light of the ONU by one of following or two ways:
Optical power value and the second of affiliated PON mouthfuls of current ONU is received by the second of current ONU to receive between optical power average value
Difference and preset threshold value comparison；
Optical power value and the second of affiliated PON mouthfuls of current ONU is received by the second of current ONU to receive between optical power average value
Compared with difference, the standard deviation for descending whole ONU second to receive optical power value with affiliated PON mouthfuls of current ONU.
A kind of detection device of dim light optical network unit ONU, comprising:
Acquisition device is configured to acquisition ONU in the first receipts optical power value and Optical Distribution Network of optical line terminal OLT side
The distance measurement value of ODN；
Analytical equipment, comprising: be stored with the memory of dim light ONU detection program；And processor, it is configured to execute institute
Dim light ONU detection program is stated to execute the operation of the detection method of above-mentioned dim light ONU.
A kind of computer readable storage medium is stored with dim light ONU detection program on the computer readable storage medium,
The step of dim light ONU detection program realizes the detection method of above-mentioned dim light ONU when being executed by processor.
The embodiment of the present invention by analysis the side OLT receive optical power come determine the side ONU whether dim light, not only accuracy is higher,
And can have a wide range of application, it not only facilitates maintenance personal and accurately finds out dim light route, thus accelerate PON network maintenance progress,
Maintenance cost is reduced, and is applicable to the detection of magnanimity fixed network terminal equipment, facilitates large scale deployment application, has reached reduction
Hardware disposes the effect of quantity and scale, saves lower deployment cost.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the detection method flow diagram of one dim light ONU of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the detection device of two dim light ONU of the embodiment of the present invention；
Fig. 3 is the exemplary deployment schematic diagram of dim light of embodiment of the present invention ONU detection device in pon；
Fig. 4 is the exemplary implementation process schematic diagram of dim light of embodiment of the present invention ONU detection method in pon.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Be in the related technology whether be lower than simply by the receipts optical power of ONU threshold value determine ONU whether dim light.This mode is extremely
Have following defects that first less, accuracy is low, leads to not accurately find out dim light route, affect the network operation of PON into
Degree increases the human cost and time cost of PON network maintenance.On the other hand, it is applied because a threshold value need to be preset
It is limited, can not large-scale application magnanimity fixed network terminal equipment in PON detection, cause hardware lower deployment cost to increase.
For the drawbacks described above of the relevant technologies, the application provides a kind of technical solution for detecting dim light ONU, passes through analysis
The side OLT receive optical power come determine the side ONU whether dim light, not only accuracy is higher, but also can have a wide range of application, and not only facilitates dimension
It repairs personnel and accurately finds out dim light route, to accelerate PON network maintenance progress, reduce maintenance cost, and be applicable to magnanimity
The detection of fixed network terminal equipment facilitates large scale deployment application, has achieved the effect that reduce hardware deployment quantity and scale, save
Lower deployment cost.
The implementation of technical scheme is described in detail below.
Embodiment one
As shown in Figure 1, a kind of detection method of dim light ONU, comprising:
Step 101, acquisition ONU receives light function the first of the side optical line terminal (OLT, optical line terminal)
The distance measurement value of rate value and Optical Distribution Network (ODN, Optical Distribution Network)；
Step 102, optical power value and ODN distance measurement value are received according to the first of the ONU, determines the ONU in the side OLT
Second receive optical power value, described second to receive optical power value be that described first will receive in optical power value after fiber-loss after deduction
Receipts optical power value；
Step 103, optical power value is received according to the second of the ONU, determines the dim light of the ONU.
In the present embodiment, optical power value and ODN distance measurement value are received according to the first of ONU, determines that ONU is received in the side OLT second
The mode of optical power value can there are many.In a kind of implementation, it is described according to the first of the ONU receive optical power value and
ODN distance measurement value determines that the ONU receives optical power value the second of the side OLT, may include: to be determined according to the ODN distance measurement value
Optical power loss value of the ONU on ODN；Optical power value and the ONU are received in ODN the first of the side OLT according to ONU
On optical power loss value, determine the ONU the side OLT second receive optical power value.Here, the optical power loss value refers to
The theoretical optical power loss of optical fiber.
In a kind of implementation, the optical power loss value can be obtained by following relational expression: optical power loss value=
Distance measurement value × uplink optical fiber wavelength attenuation coefficient.It is, of course, also possible to using other calculations, in this regard, not limiting herein.
In a kind of implementation, the second receipts optical power value can be obtained by following relational expression: second receive optical power value=
First receives optical power value+optical power loss value.It is, of course, also possible to using other calculations.For example, increasing in above-mentioned relation formula
Weight tuple or other coefficients etc..The specific calculation for receiving optical power value for second, herein with no restriction.
It should be noted that the first receipts optical power value herein refers to the initial data that the side OLT is collected by collector,
Second receipts optical power value is the data for considering to be calculated after loss on ODN.
In the present embodiment, determine that the mode of the dim light of the ONU can have according to the second of the ONU the receipts optical power value
It is a variety of.It is described to receive optical power value according to the second of the ONU in a kind of implementation, determine the dim light of the ONU, it can be with
It include: to receive optical power value and the second of affiliated PON mouthfuls of current ONU according to the second of current ONU to receive between optical power average value
Difference determines the dim light of the ONU.Here, optical power value is received according to the second of the ONU, obtains the dim light inspection of the ONU
It surveys before result, can also include: that same PON mouthfuls of statistics lower whole ONU second receives optical power value, obtain described PON mouthfuls
Second receives optical power average value.
In the present embodiment, determine that the concrete mode of the dim light of the ONU can have according to the second of ONU the receipts optical power value
It is a variety of.In a kind of implementation, receive optical power value according to the second of the ONU, determine the ONU dim light can there are many
Including one of following or two: 1) receiving optical power value and the second of affiliated PON mouthful of current ONU the receipts light function for the second of current ONU
Difference and preset threshold value comparison between rate average value, determine the dim light of the ONU；2) light is received by the second of current ONU
The second of performance number and affiliated PON mouthfuls of current ONU receive difference between optical power average value, with current ONU it is PON mouthfuls affiliated under it is complete
The standard deviation that portion ONU second receives optical power value compares, and determines the dim light of the ONU.
In a kind of implementation, it is described by the difference of current ONU, with affiliated PON mouthful of current ONU time whole ONU the
The standard deviation of two receipts optical power values compares, and determines the dim light of the ONU, may include: the absolute of the difference described in current ONU
Value meets different predetermined items from affiliated PON mouthfuls of the current ONU lower whole ONU second standard deviation comparison result for receiving optical power value
When part, determine that the ONU is the dim light ONU of different stage, the rank is used to indicate the degree of ONU dim light.
Specifically, whole ONU second is received under the absolute value of the difference described in current ONU and current ONU are PON mouthfuls affiliated
When the standard deviation comparison result of optical power value meets different predetermined conditions, determine that the ONU is the dim light of different stage
ONU may include one or more following:
1) whole ONU second receives optical power value under the absolute value of the difference described in current ONU and current ONU are PON mouthfuls affiliated
Standard deviation comparison result meet the first predetermined condition when, determine the ONU be level-one dim light ONU；
2) whole ONU second receives optical power value under the absolute value of the difference described in current ONU and current ONU are PON mouthfuls affiliated
Standard deviation comparison result meet the second predetermined condition when, determine the ONU be second level dim light ONU；
3) whole ONU second receives optical power value under the absolute value of the difference described in current ONU and current ONU are PON mouthfuls affiliated
Standard deviation comparison result when being not up to first predetermined condition and the second predetermined condition, determine that the ONU is non-dim light
ONU；
Wherein, the level-one dim light ONU is different from the dim light degree of the second level dim light ONU.
For example, the first predetermined condition can be, " difference described in current ONU is less than 0 and its absolute value is greater than under affiliated PON mouthfuls
Whole ONU second receive 2 times of the standard deviation of optical power values ", level-one corresponding to this condition indicates the dim light of general level.Compare again
Such as, the second predetermined condition can be that " difference described in current ONU is less than 0 and its absolute value is greater than affiliated PON mouthful time whole ONU the
Two receive 3 times of standard deviation of optical power values ", second level corresponding to this condition indicates the dim light of severity.
In another implementation, different dim light grades can also be distinguished by the way that multiple threshold values are arranged, i.e., it is above-mentioned various
A determining threshold value can be set in predetermined condition.For example, two threshold values can be set: indicating the first threshold of general level dim light
Value indicates the second threshold of severity dim light, if the second of current ONU receives optical power value and affiliated PON mouthfuls of current ONU
When second difference for receiving between optical power average value is greater than first threshold, it can be considered that ONU is level-one dim light ONU, i.e. ONU is general
The dim light ONU of degree, if the second receipts optical power value of current ONU and the second of affiliated PON mouthfuls of current ONU the receipts optical power are average
When difference between value is greater than second threshold, it can be considered that ONU is second level dim light ONU, i.e. ONU is the dim light ONU of severity.Such as
The difference that the second of the current ONU of fruit is received between optical power value and the second of affiliated PON mouthfuls of current ONU the receipts optical power average value is little
When first threshold, it can be considered that ONU is non-dim light ONU.
It should be noted that above-mentioned first predetermined condition, the second predetermined condition are example, it can basis in practical application
Application scenarios need to adjust the first predetermined condition, the second predetermined condition.In above-mentioned example, ONU dim light is divided into two-stage: level-one
(general level), second level (severity).In practical application, which can be adjusted according to actual needs.For example it is arranged
For level Four, it can accordingly be pre-configured four predetermined conditions.For another example, the more fine-grained dim lights such as six grades, eight grades can also be set
Classification.It is classified it is of course also possible to which a dim light is only arranged, predetermined condition and dim light classification may not be one-to-one relationship.
In addition, the predetermined condition of dim light classification can also be realized by the way that different threshold values is arranged.In this regard, not limiting herein.
It is described to receive optical power value according to the second of the ONU in a kind of implementation, determine the ONU dim light it
Before, it can also include: same PON mouthful of statistics lower whole ONU second receipts optical power value, obtain described PON mouthfuls whole ONU the down
Two receive the standard deviation of optical power value.
In a kind of implementation, the second of one PON mouthfuls receives optical power average value and can calculate one of in the following way
It obtains, but not limited to this:
The calculating average value that mode one, directly second using one PON mouthfuls lower whole ONU receive optical power value.
Mode two is removed the maximum value and minimum value that one PON mouthfuls are descended in whole ONU second receipts optical power values, then
Optical power value, which is received, based on remaining second again calculates average value.
In a kind of implementation, one PON mouthfuls of standard deviation can be calculated one of in the following way, but be not limited to
This:
Mode one, directly second using one PON mouthfuls lower whole ONU receive optical power value and calculate standard deviation.
Mode two removes the maximum value and minimum value that one PON mouthfuls are descended in whole ONU second receipts optical power values, then base
Optical power value, which is received, in remaining second calculates standard deviation.
It should be noted that above-mentioned PON mouthfuls of the second receipts optical power average value and standard deviation can also be using other calculating
Mode.A part is chosen in optical power value to be calculated for example, receiving from ONU second all under PON mouthfuls.For specifically calculating
Mode can be adjusted, herein with no restriction according to the needs of practical application scene.
Embodiment two
A kind of detection device of dim light ONU, as shown in Fig. 2, may include:
Acquisition device 21 receives optical power value and Optical Distribution Network the first of optical line terminal OLT side for acquiring ONU
The distance measurement value of ODN；
Analytical equipment 22 determines the ONU for receiving optical power value and ODN distance measurement value according to the first of the ONU
Receive optical power value the second of the side OLT, described second receive optical power value be will be in the first receipts optical power value after fiber-loss
Receipts optical power value after deduction；Optical power value is received according to the second of the ONU, determines the dim light of the ONU.
In a kind of implementation, the analytical equipment 22, it may also be used for count same PON mouthfuls lower whole ONU second receipts
Optical power value, obtain described PON mouthfuls second receive optical power average value；And specifically for receiving light according to the second of current ONU
Difference between performance number and the second of affiliated PON mouthfuls of current ONU the receipts optical power average value, determines the dim light of the ONU.
In a kind of implementation, the analytical equipment 22 is particularly used in and determines institute by one of following or two ways
State the dim light of ONU:
Optical power value and the second of affiliated PON mouthfuls of current ONU is received by the second of current ONU to receive between optical power average value
Difference and preset threshold value comparison；
Optical power value and the second of affiliated PON mouthfuls of current ONU is received by the second of current ONU to receive between optical power average value
Compared with difference, the standard deviation for descending whole ONU second to receive optical power value with affiliated PON mouthfuls of current ONU.
Acquisition device 21, analytical equipment 22 in the present embodiment in the detection device of dim light ONU can be software, hard respectively
The combination of part or both.
The other technologies details of the present embodiment can refer to embodiment one.
Embodiment three
A kind of detection device of dim light ONU, comprising:
Acquisition device is configured to acquisition ONU in the first receipts optical power value and Optical Distribution Network of optical line terminal OLT side
The distance measurement value of ODN；
Analytical equipment, comprising: be stored with the memory of dim light ONU detection program；And processor, it is configured to execute institute
Dim light ONU detection program is stated to execute the operation of the detection method of dim light ONU described in embodiment one.
The other technologies details of the present embodiment can refer to embodiment one.
Example IV
A kind of computer readable storage medium is stored with dim light ONU detection program on the computer readable storage medium,
The step of dim light ONU detection program realizes the detection method of dim light ONU described in embodiment one when being executed by processor.
The other technologies details of the present embodiment can refer to embodiment one.
The example implementations of the various embodiments described above are described in detail below.It should be noted that hereafter each reality
Example can any combination.Also, in practical applications, the various embodiments described above can also have other implementations, in Examples below
Each process, implementation procedure etc. can also be adjusted according to the needs of practical application.
Example 1
As shown in figure 3, being the exemplary deployment schematic diagram of the detection device of dim light ONU in pon.
As shown in figure 3, the detection device of dim light ONU includes acquisition device and analytical equipment, wherein acquisition device and OLT
Connection, the ONU for being responsible for acquiring the optical module of OLT from OLT receives optical power value and distance measurement value, and is sent to analytical equipment.Analysis
Device is connect with acquisition device, and the receipts optical power value and distance measurement value for being responsible for being sent based on acquisition device are analyzed, and determines ONU's
Dim light.Detailed process can refer to embodiment one, repeat no more.
Example 2
As shown in figure 4, to determine that ONU is weak by being analyzed receipts optical power value and distance measurement value in dim light ONU detection
The exemplary implementation process schematic diagram of photosensitiveness.
As shown in figure 4, the testing process of each PON mouthfuls lower ONU dim light may include: in PON
Step 401, start；
Step 402, if having PON mouthfuls untreated? if it is continue step 403, if without untreated PON
Mouthful, it can directly terminate current process；
Step 403, all ONU are read under a PON mouth that do not analyze in the first receipts optical power value A and ranging of the side OLT
Value L；
Wherein, the first receipts optical power value A and distance measurement value L is from the collected initial data in the side OLT.
Step 404, optical fiber bring optical power loss value F:F=L × optical fiber upstream wavelength of OLT to each ONU declines
Subtract coefficient；
Step 405, it calculates each ONU and receives the receipts optical power value A+ optical power damage of optical power B:B=first the second of the side OLT
Consumption value F；
Step 406, calculate it is PON mouthfuls current under all ONU second receive the average value M and standard deviation S of optical power B；
Step 407, it takes an ONU to receive optical power B in the side OLT second, calculates the second difference for receiving optical power B and average value M
Value C:C=B-M；
Step 408, judge whether C < -3 × S is true, continue step 410 if setting up, continue to walk if invalid
Rapid 409；
Step 409, judge whether C < -2 × S is true, continue step 411 if setting up, determined if invalid
ONU is non-dim light ONU, jumps directly to step 412；
Step 410, it determines the serious dim light of ONU, jumps directly to step 412；
Step 411, it determines ONU dim light, continues step 412；
Step 412, judge whether there are also unchecked ONU, if there is then return step 407 unchecked ONU, if do not had
There are then return step 402 unchecked ONU.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be instructed by program
Related hardware (such as processor) is completed, and described program can store in computer readable storage medium, as read-only memory,
Disk or CD etc..Optionally, one or more integrated circuits also can be used in all or part of the steps of above-described embodiment
It realizes.Correspondingly, each module/unit in above-described embodiment can take the form of hardware realization, such as pass through integrated circuit
It realizes its corresponding function, can also be realized in the form of software function module, such as be stored in and deposited by processor execution
Program/instruction in reservoir realizes its corresponding function.The application is not limited to the knot of the hardware and software of any particular form
It closes.
The advantages of basic principles and main features and the application of the application have been shown and described above.The application is not by upper
The limitation for stating embodiment, the above embodiments and description only describe the principles of the application, are not departing from the application
Under the premise of spirit and scope, the application be will also have various changes and improvements, these changes and improvements both fall within claimed
Within the scope of the application.
Claims (12)
1. a kind of detection method of dim light optical network unit ONU characterized by comprising
It acquires ONU and receives optical power value and the distance measurement value of Optical Distribution Network ODN the first of optical line terminal OLT side；
Optical power value and ODN distance measurement value are received according to the first of the ONU, determines that the ONU receives light function the second of the side OLT
Rate value, described second receives optical power value to receive the receipts optical power after deducting after fiber-loss in optical power value by described first
Value；
Optical power value is received according to the second of the ONU, determines the dim light of the ONU.
2. detection method according to claim 1, which is characterized in that it is described according to the first of the ONU receive optical power value,
And ODN distance measurement value, determine that the ONU receives optical power value the second of the side OLT, comprising:
According to the ODN distance measurement value, optical power loss value of the ONU on ODN is determined；
Receive optical power loss value on ODN of optical power value and the ONU the first of the side OLT according to ONU, determine described in
ONU receives optical power value the second of the side OLT.
3. detection method according to claim 1, which is characterized in that
It is described to receive optical power value according to the second of the ONU, before obtaining the Dim light measurement result of the ONU, further includes: statistics
Same PON mouthfuls lower whole ONU second receives optical power value, and obtain described PON mouthfuls second receives optical power average value；
It is described to receive optical power value according to the second of the ONU, determine the dim light of the ONU, comprising: according to the of current ONU
Two receive the difference between optical power value and the second of affiliated PON mouthfuls of current ONU the receipts optical power average value, determine that the ONU's is weak
Photosensitiveness.
4. detection method according to any one of claims 1 to 3, which is characterized in that described to be received according to the second of the ONU
Optical power value, determines the dim light of the ONU, including one of following or two:
The second of current ONU is received the difference between optical power value and the second of affiliated PON mouthfuls of current ONU the receipts optical power average value
With preset threshold value comparison, the dim light of the ONU is determined；
The second of current ONU is received the difference between optical power value and the second of affiliated PON mouthfuls of current ONU the receipts optical power average value
Value compared with receiving the standard deviation of optical power value with affiliated PON mouthfuls of current ONU lower whole ONU second, determines the dim light of the ONU.
5. detection method according to claim 4, which is characterized in that described by the difference of current ONU and current
The standard deviation that affiliated PON mouthfuls of ONU lower whole ONU second receives optical power value compares, and determines the dim light of the ONU, comprising:
Whole ONU second receives the standard of optical power value under the absolute value of the difference described in current ONU and current ONU are PON mouthfuls affiliated
When poor comparison result meets different predetermined conditions, determine that the ONU is the dim light ONU of different stage, the rank is used for
Indicate the degree of ONU dim light.
6. detection method according to claim 5, which is characterized in that the absolute value of the difference described in current ONU with
The standard deviation comparison result that affiliated PON mouthfuls of current ONU lower whole ONU second receives optical power value meets different predetermined conditions
When, determine that the ONU is the dim light ONU of different stage, comprising:
Whole ONU second receives the standard of optical power value under the absolute value of the difference described in current ONU and current ONU are PON mouthfuls affiliated
When poor comparison result meets the first predetermined condition, determine that the ONU is level-one dim light ONU；
Whole ONU second receives the standard of optical power value under the absolute value of the difference described in current ONU and current ONU are PON mouthfuls affiliated
When poor comparison result meets the second predetermined condition, determine that the ONU is second level dim light ONU；
Whole ONU second receives the standard of optical power value under the absolute value of the difference described in current ONU and current ONU are PON mouthfuls affiliated
When poor comparison result is not up to first predetermined condition and the second predetermined condition, determine that the ONU is non-dim light ONU；
Wherein, the level-one dim light ONU is different from the dim light degree of the second level dim light ONU.
7. detection method according to claim 4, which is characterized in that
It is described to receive optical power value according to the second of the ONU, before the dim light for determining the ONU, further includes:
It counts same PON mouthfuls lower whole ONU second and receives optical power value, obtain described PON mouthfuls lower whole ONU second and receive optical power
The standard deviation of value.
8. a kind of detection device of dim light optical network unit ONU characterized by comprising
Acquisition device receives optical power value and Optical Distribution Network ODN the first of optical line terminal OLT side for acquiring ONU
Distance measurement value；
Analytical equipment determines the ONU in the side OLT for receiving optical power value and ODN distance measurement value according to the first of the ONU
Second receive optical power value, described second to receive optical power value be that described first will receive in optical power value after fiber-loss after deduction
Receipts optical power value；Optical power value is received according to the second of the ONU, determines the dim light of the ONU.
9. detection device according to claim 8, which is characterized in that
The analytical equipment is also used to count same PON mouthfuls lower whole ONU second and receives optical power value, obtains described PON mouthfuls
Second receives optical power average value；And specifically for PON mouthfuls affiliated according to the second of current ONU the receipts optical power value and current ONU
Second receive optical power average value between difference, determine the dim light of the ONU.
10. detection device according to claim 8 or claim 9, which is characterized in that the analytical equipment is specifically used for by such as
One of lower or two ways determines the dim light of the ONU:
The second of current ONU is received the difference between optical power value and the second of affiliated PON mouthfuls of current ONU the receipts optical power average value
With preset threshold value comparison；
The second of current ONU is received the difference between optical power value and the second of affiliated PON mouthfuls of current ONU the receipts optical power average value
Compared with value, the standard deviation for descending whole ONU second to receive optical power value with affiliated PON mouthfuls of current ONU.
11. a kind of detection device of dim light optical network unit ONU characterized by comprising
Acquisition device is configured to acquisition ONU in the first receipts optical power value and Optical Distribution Network ODN of optical line terminal OLT side
Distance measurement value；
Analytical equipment, comprising: be stored with the memory of dim light ONU detection program；And processor, it is configured to execute described weak
Light ONU detects the operation that program requires the detection method of any one of 1 to the 7 dim light ONU with perform claim.
12. a kind of computer readable storage medium, which is characterized in that be stored with dim light on the computer readable storage medium
ONU detects program, and the dim light ONU detection program is realized weak as described in any one of claims 1 to 7 when being executed by processor
The step of detection method of light ONU.
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