CN103152413A - Transmission method and system of data in passive optical network - Google Patents
Transmission method and system of data in passive optical network Download PDFInfo
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- CN103152413A CN103152413A CN2013100649366A CN201310064936A CN103152413A CN 103152413 A CN103152413 A CN 103152413A CN 2013100649366 A CN2013100649366 A CN 2013100649366A CN 201310064936 A CN201310064936 A CN 201310064936A CN 103152413 A CN103152413 A CN 103152413A
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Abstract
The invention provides a transmission method and system of data in a passive optical network. The transmission method comprises the following steps of: if terminal equipment hung under an ONU (Optical Network Unit) of a system which adopts a PTZ (Pan/Tilt/Zoom) control protocol and a PTZ control protocol address of terminal equipment of another ONU are repeated in address, when an OLT (Optical line Terminal) initiates communication with certain terminal equipment, sending a message containing an identification mark of the ONU corresponding to the terminal equipment and the PTZ control protocol address; and after the ONU receives the message containing the identification mark of the ONU, acquiring the identification mark of the ONU in the message, comparing the identification mark with the self identification mark of the ONU, and if the identification mark is the same as the self identification mark, sending the message according to the PTZ control protocol address in the message.
Description
Technical field
The present invention relates to the communications field, relate in particular to transmission method and the system of data in a kind of EPON.
Background technology
in present most cradle head control agreement, address bit is 8 bits, in the video monitoring system based on the EPON technology, when if in this system, controllable camera outnumbers 256, just certainly will there be a plurality of camera cradle head control protocol address to repeat, that downlink broadcast sends due to the EPON system to the cradle head control data, each camera can be received these data, cradle head control parameter configuration all the other parameters except address code are consistent in actual applications, the camera of cradle head control protocol address repetition will carry out identical action so, can't make a distinction, make troubles to monitoring.
Summary of the invention
The invention provides transmission method and the system of data in a kind of EPON, the technical problem that solves is if the cradle head control protocol address of the terminal equipment of the terminal equipment of hanging under ONU in the system of employing cradle head control agreement and another ONU repeats, and how to carry out transfer of data when the cradle head control protocol address repeats.
For solving the problems of the technologies described above, the invention provides following technical scheme:
The transmission method of data in a kind of EPON comprises:
If the cradle head control protocol address of the terminal equipment of hanging under an optical network unit ONU in the system of employing cradle head control agreement and the terminal equipment of another ONU repeats, optical line terminal OLT is when initiating with the communicating by letter of certain terminal equipment, and transmission comprises the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address;
ONU is after the message that receives the identify label that comprises ONU, obtain the identify label of ONU in described message, and described identify label and identify label are separately compared, if identical, send described message according to the cradle head control protocol address in this message.
Preferably, described method also has following features: the cradle head control protocol address of the terminal equipment of hanging under a described ONU and the terminal equipment of another ONU repeats to comprise:
System is device address that terminal equipment distributes when surpassing 8, and the device address that surpasses 8 can be that the device address of terminal equipment of 8 is identical by the part of system identification and cradle head control protocol address.
Preferably, described method also has following features:
Before wherein sending the message of the identify label comprise the ONU that described terminal equipment is corresponding and cradle head control protocol address, also comprise:
OLT obtains the corresponding relation of the identify label of the device address of each terminal equipment and ONU, and preserves described corresponding relation;
Described transmission comprises the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address, comprising:
Behind the device address that obtains user's input, according to the device address of user's input, in described corresponding relation, the identify label of the ONU that the device address of inquiring user input is corresponding;
If inquire, with the device address of user input rear 8 as the cradle head control protocol address, send the identify label of the ONU that comprises that inquiry obtains and the message of cradle head control protocol address.
Preferably, described method also has following features: when terminal equipment in system add up to M the time, when described system adds new terminal equipment, the binary expression formula of the integer M+1 system that is configured to is the device address of this terminal equipment that newly adds, wherein M is positive integer;
Before wherein sending the message of the identify label comprise the ONU that described terminal equipment is corresponding and cradle head control protocol address, also comprise:
OLT obtains the corresponding relation of the identify label of the device address of each terminal equipment and ONU;
OLT according to from small to large arranged sequentially of device address, obtains the identify label of whole ONU corresponding to same cradle head control protocol address with rear 8 identical terminal equipments in the device address;
Described transmission comprises the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address, comprising:
Behind the device address that obtains user's input, the device address according to user's input obtains cradle head control protocol address corresponding to this device address;
In the identify label of whole ONU corresponding to described cradle head control protocol address, with this device address as binary expression formula, the decimal system numerical value and 256 that this expression formula is converted to is made quotient after division and is added N as a result after one, that determines N ONU in the identify label of whole ONU that described cradle head control protocol address is corresponding is designated ONU sign corresponding to described terminal equipment, and wherein N is positive integer.
Preferably, described method also has following features: the device address of terminal equipment obtains in the following way, comprising:
Mode one: after ONU received the exterior arrangement instruction and obtains the device address of terminal equipment, when registering to OLT, the field in extended operation, in administering and maintaining the OAM agreement sent the device address of the terminal equipment of hanging under this ONU; OLT expands by reception the content that in the OAM agreement, field is carried, and obtains the corresponding relation of the identify label of device address that described system distributes for each terminal equipment and ONU; Perhaps,
Mode two: OLT is after the terminal equipment that newly adds being detected, and the ONU of the terminal equipment that newly adds by the downward extension of field in expansion OAM agreement sends the local device address that is configured to this terminal equipment configuration that newly adds.
Preferably, described method also has following features: the device address of described user's input, obtain in the following way, and comprising:
Receive outside input by numeral 0～9 Serial No. that forms;
According to the corresponding relation of the device address of Serial No. and terminal equipment, determine the device address of described user's input.
The transmission system of data in a kind of EPON adopts the system of cradle head control agreement to comprise OLT and ONU, wherein:
The first dispensing device in OLT, when being used for the cradle head control protocol address repetition of the terminal equipment hang and the terminal equipment of another ONU under an ONU, when OLT initiated with the communicating by letter of certain terminal equipment, transmission comprised the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address;
The first deriving means in ONU is connected with described the first dispensing device, is used for obtaining the identify label of ONU in described message after the message that receives the identify label that comprises ONU;
Comparison means in ONU is connected with described the first deriving means, is used for described identify label and identify label are separately compared;
The second dispensing device in ONU is connected with described comparison means, if for identical, sends described message according to the cradle head control protocol address in this message.
Preferably, described system also has following features: the cradle head control protocol address of the terminal equipment of hanging under a described ONU and the terminal equipment of another ONU repeats to comprise:
System is device address that terminal equipment distributes when surpassing 8, and the device address that surpasses 8 can be that the address of terminal equipment of 8 is identical by the part of system identification and cradle head control protocol address.
Preferably, described system also has following features: wherein said system also comprises:
The first deriving means is used for obtaining the corresponding relation of the identify label of the device address of each terminal equipment and ONU, and preserves described corresponding relation;
Described the first dispensing device comprises:
Enquiry module is connected with described the first deriving means, is used for behind the device address that obtains user's input, and according to the device address of user's input, in described corresponding relation, the identify label of the ONU that the device address of inquiring user input is corresponding;
The first sending module is connected with described enquiry module, if be used for inquiring, with the device address of user's input rear 8 as the cradle head control protocol address, send the identify label of the ONU that comprises that inquiry obtains and the message of cradle head control protocol address.
Preferably, described system also has following features:
Described OLT also comprises:
The second deriving means is used for obtaining the corresponding relation of the identify label of the device address of each terminal equipment and ONU;
Save set is connected with described the second deriving means, is used for rear 8 the identical terminal equipments in device address obtaining the identify label of whole ONU corresponding to same cradle head control protocol address according to from small to large arranged sequentially of device address;
Described the first dispensing device comprises:
The second acquisition module is connected with described save set, is used for behind the device address that obtains user's input, and the device address according to user's input obtains cradle head control protocol address corresponding to this device address;
Determination module, be connected with described the second acquisition module, be used for the identify label at whole ONU corresponding to described cradle head control protocol address, with this device address as binary expression formula, the decimal system numerical value and 256 that this expression formula is converted to is made quotient after division and is added N as a result after one, that determines N ONU in the identify label of whole ONU that described cradle head control protocol address is corresponding is designated ONU sign corresponding to described terminal equipment, and wherein N is positive integer;
The second sending module is connected with determination module with described the second acquisition module, is used for sending comprising the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address.
Preferably, described system also has following features: the device address of described terminal equipment obtains in the following way, comprising:
Mode one: after ONU received the exterior arrangement instruction and obtains the device address of terminal equipment, when registering to OLT, the field in extended operation, in administering and maintaining the OAM agreement sent the device address of the terminal equipment of hanging under this ONU; OLT expands by reception the content that in the OAM agreement, field is carried, and obtains the corresponding relation of the identify label of device address that described system distributes for each terminal equipment and ONU; Perhaps,
Mode two: OLT is after the terminal equipment that newly adds being detected, and the ONU of the terminal equipment that newly adds by the downward extension of field in expansion OAM agreement sends the local device address that is configured to this terminal equipment configuration that newly adds
Preferably, described system also has following features: described OLT also comprises:
Receiving system, be used for to receive outside input by numeral 0～9 Serial No. that forms;
Determine device, be connected with the first dispensing device with described receiving system, be used for the corresponding relation according to the device address of Serial No. and terminal equipment, determine the device address of described user's input.
Compared with prior art, embodiment provided by the invention, when the cradle head control protocol address of the terminal equipment of hanging under ONU in the system that adopts the cradle head control agreement and the terminal equipment of another ONU repeats, identify this terminal equipment in conjunction with the identify label of ONU, the man-to-man control of realization to the terminal equipment of identical cradle head control agreement under different ONU, convenient dilatation to system.
Description of drawings
Fig. 1 is the schematic flow sheet of the transmission method embodiment of data in EPON provided by the invention;
Fig. 2 is the schematic diagram of the management system of the cradle head control agreement based on the EPON technology provided by the invention;
Fig. 3 is the structural representation of the transmission system embodiment of data in EPON provided by the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.Need to prove, in the situation that do not conflict, the embodiment in the application and the feature in embodiment be combination in any mutually.
Fig. 1 is the schematic flow sheet of the transmission method embodiment of data in EPON provided by the invention.Embodiment of the method shown in Figure 1 comprises:
If the cradle head control protocol address of the terminal equipment of hanging under ONU in the system of step 101 employing cradle head control agreement and the terminal equipment of another ONU repeats, OLT is when initiating with the communicating by letter of certain terminal equipment, and transmission comprises the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address;
Wherein, only supporting the address due to the cradle head control agreement is 8 binary addresses, and 8 bit address that system therefore can recognize are as the cradle head control protocol address;
Step 102, ONU are after the message that receives the identify label that comprises ONU, obtain the identify label of ONU in described message, and described identify label and identify label are separately compared, if identical, send described message according to the cradle head control protocol address in this message.
Compare with the single employing cradle head control of prior art protocol address marking terminal equipment, embodiment of the method provided by the invention, when the cradle head control protocol address repetition of the terminal equipment of hanging under ONU in the system that is adopting the cradle head control agreement and the terminal equipment of another ONU, identify this terminal equipment in conjunction with the identify label of ONU, the man-to-man control of realization to the terminal equipment of identical cradle head control agreement under different ONU, convenient dilatation to system.
Wherein, the identify label of described ONU is carried by preamble field.Certainly, can also select other fields, the field of wherein selecting can message protocol in undefined field, and configure all ONU and all this field resolved when receiving message and get final product.
Certainly, this ONU identify label is a kind of sign of unique definite ONU, as long as namely can the information of a unique definite ONU all can in a plurality of ONU, for example, ONU in system is carried out number consecutively, as identify label, be which numbering as long as which ONU ONU and OLT know when numbering.OLT knows that the identify label of each ONU gets final product.
The present invention is simple for realizing, adopting the identify label of ONU is logical links mark (Logical Link Identifier, LLID).
Wherein, described OLT is the corresponding relation that obtains in the following way the identify label of device address that described system distributes for each terminal equipment and ONU, comprising:
ONU is when registering to OLT, and the field in extended operation, in administering and maintaining the OAM agreement sends the device address of the terminal equipment of hanging under this ONU;
OLT expands by reception the content that in the OAM agreement, field is carried, and obtains the corresponding relation of the identify label of device address that described system distributes for each terminal equipment and ONU.
A kind of management agreement in OAM agreement EPON system, the administrative message that can keep between OLT and ONU is mutual, expansion OAM agreement is that telecom operators are to the expansion of this standard, the different operators definition is slightly different, have simultaneously a little self-defining fields in this agreement, these self-defining fields that the present invention utilizes have just accomplished the cradle head control protocol address is passed to OLT, certainly, in practical application, also other cradle head control property parameters can be sent to OLT.
Wherein, above-mentionedly illustrated that the cradle head control agreement can only identify 8 binary addresses, therefore in described system, the cradle head control protocol address of at least two terminal equipments repeats to comprise:
System is device address that terminal equipment distributes when surpassing 8, and the device address that surpasses 8 can be that the device address of terminal equipment of 8 is identical by the part of system identification and cradle head control protocol address.
specifically, if the device address of terminal equipment is 8, the cradle head control protocol address is the device address of this terminal equipment, if occur the device address more than 9 in system, this will be over the scope of The Cloud Terrace agreement support, therefore, the cradle head control protocol address that system can identify is rear 8, therefore to surpass the cradle head control protocol address of the terminal equipment of 8 be just in time that the cradle head control protocol address of terminal equipment of 8 is identical with the device address in the device address, for example, when the identification equipment address is 10.00.00.00.00, the cradle head control protocol address that obtains is 00.00.00.00, identical with the cradle head control protocol address of already present terminal equipment.
Need to prove, the number of the terminal equipment of hanging under ONU can be one or more, in quantity when being a plurality of, the cradle head control protocol address that can configure a plurality of terminal equipments under same ONU does not repeat mutually, thereby guarantees a plurality of terminal equipments under same ONU are realized man-to-man management.
The below describes with a concrete application example:
Fig. 2 is the schematic diagram of the management system of the cradle head control agreement based on the EPON technology provided by the invention.In system shown in Figure 2, mostly adopt the RS485 data to be transferred to by broadcast mode based on the management system downgoing control signal of the cradle head control agreement of EPON technology and pass to The Cloud Terrace after ONU processes, and the cradle head control protocol address is 8 bits, this a problem will occur: when the camera of cradle head control in system surpasses 256, the cradle head control protocol address of the terminal equipment under different ONU repeats, how to distinguish these terminal equipments addresses?
Describe below by two embodiment:
Embodiment one
System is the situation that 1 ONU controls 1 cradle head control terminal equipment, when described system adds new terminal equipment, the device address of the terminal equipment that newly adds, can pass through human configuration, certainly, can also be after OLT detecting new equipment and is adding, for this terminal equipment that newly adds produces a device address, and be handed down to the ONU of lower this terminal equipment of extension by the field in expansion OAM agreement, certainly, the minimum requirements of configuration is that the device address of the terminal equipment under same ONU is different.
Certainly, if adopt the device address of the former configurating terminal device, OLT is the device address that can't learn terminal equipment, therefore when ONU initiates registration to OLT, inform the device address of its lower terminal equipment of hanging of OLT, wherein the address of this terminal equipment can send by the field in expansion OAM agreement.
How the below is to realizing how terminal equipment of unique identification describes OLT, comprises step a～d, wherein:
The corresponding relation of the identify label of step a, device address that the system that obtains distributes for each terminal equipment and ONU;
Wherein, ONU is when registering to OLT, and the field in extended operation, in administering and maintaining the OAM agreement sends the device address of the terminal equipment of hanging under this ONU; OLT expands by reception the content that in the OAM agreement, field is carried, and obtains the corresponding relation of the identify label of device address that described system distributes for each terminal equipment and ONU.
The corresponding relation of the identify label of step b, the device address of preserving each terminal equipment and ONU;
Step c, after obtaining the device address of user input, according to the device address of user's input, in described corresponding relation, the identify label of the ONU that the device address of inquiring user input is corresponding;
wherein, the device address of user's input can obtain in the following way, comprise: receive outside input by numeral 0～9 Serial No. that forms, corresponding relation according to the device address of Serial No. and terminal equipment, determine the device address of described user's input, for example, the binary expression formula that the Serial No. of user input is set is the device address of the terminal equipment that will control, if the user inputs 0, the indicate device address of the terminal equipment controlled is 00.00.00.00, if the Serial No. of input is 256, the device address of expression control is 1.00.00.00.00.
If steps d inquires, with the device address of user input rear 8 as the cradle head control protocol address, send the identify label of the ONU that comprises that inquiry obtains and the message of cradle head control protocol address.
This shows, when the cradle head control agreement surpassed 8, the terminal equipment that under different ONU, the cradle head control protocol address repeats recognized a terminal equipment by the identity information of ONU is unique, realizes man-to-man control.
Embodiment two
System is the situation that 1 ONU controls 1 cradle head control terminal equipment, in order to facilitate the user to select the terminal equipment that to control by numeric keypad, the device address of the terminal equipment that newly adds, can certainly adopt the dual mode of embodiment one to be configured, not only different from the device address of existing terminal equipment under same ONU when the device address of this terminal equipment that newly adds, also have following features:
When terminal equipment in system add up to M the time, when described system adds new terminal equipment, the binary expression formula of the integer M+1 system that is configured to is the device address of this terminal equipment that newly adds, wherein M is positive integer.
Wherein, in system, the sum of terminal equipment can be obtained by statistics in the register flow path that receives ONU by OLT.
How unique from a plurality of terminal equipments what above need to control how to confirm is which terminal equipment is illustrated, and the below is to after determining the terminal equipment that will control, find corresponding terminal equipment to describe:
Because the cradle head control agreement can not be identified and surpasses the address of 8, therefore when the cradle head control protocol address duplicates, come the unique identification terminal equipment in conjunction with the sign of the ONU of lower this terminal equipment of extension.Specifically, in the The Cloud Terrace initialization procedure, the The Cloud Terrace initiation parameter is sent to ONU, triggering ONU registers by expansion OAM to OLT, report the cradle head control protocol address of the lower terminal equipment of hanging separately, OLT records the corresponding relation of the identify label of the device address of each terminal equipment and ONU after receiving these registration messages.In this application example, the sign of ONU adopts the logical links mark, and carries by the lead code in message.
How the below is to realizing how terminal equipment of unique identification describes OLT, comprises steps A～E, wherein:
The corresponding relation of the identify label of steps A, device address that the system that obtains distributes for each terminal equipment and ONU;
Wherein, ONU is when registering to OLT, and the field in extended operation, in administering and maintaining the OAM agreement sends the device address of the terminal equipment of hanging under this ONU; OLT expands by reception the content that in the OAM agreement, field is carried, and obtains the corresponding relation of the identify label of device address that described system distributes for each terminal equipment and ONU.
Step B, OLT according to from small to large arranged sequentially of device address, obtain the identify label of whole ONU corresponding to same cradle head control protocol address with rear 8 identical terminal equipments in the device address;
Wherein the device address refer to from small to large with the device address as a binary expression formula after, decimal system numerical value corresponding to this expression formula sorts from small to large;
For example, for divided by after 256, remainder is the device address of 0 terminal equipment, decimal system numerical value corresponding to the binary expression formula of these device addresses is respectively 0,256,512,768,1024 ...; According to from small to large arranged sequentially of device address, obtain the identify label of whole ONU corresponding to same cradle head control protocol address.
Step C, after obtaining the device address of user input, the device address according to user's input obtains cradle head control protocol address corresponding to this device address, namely rear 8 of the device address;
Step D, in the identify label of whole ONU corresponding to described cradle head control protocol address, with this device address as binary expression formula, the decimal system numerical value and 256 that this expression formula is converted to is made quotient after division and is added N as a result after one, that determines N ONU in the identify label of whole ONU that described cradle head control protocol address is corresponding is designated ONU sign corresponding to described terminal equipment, and wherein N is positive integer.
For example, if this device address is as binary expression formula, the decimal system numerical value that this expression formula is converted to is 256, be business after division to add one result be 2 with 256, the 2nd sign identify label of ONU corresponding to this device address just in the identify label of whole ONU that cradle head control protocol address 00.00.00.00 is corresponding.
Step e, transmission comprise the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address.
As seen from the above, by the device address is processed, the information of can supported cradle head control agreement and can unique identification terminal equipment, compare with the identify label of ONU with direct apparatus for establishing address in embodiment one, what embodiment one inquired about is the ONU sign of armamentarium address, and what embodiment two inquired about is the ONU sign with repetition cradle head control protocol address, and its hunting zone obviously reduces, therefore, search speed wants fast a lot.
Wherein, above-mentioned terminal equipment can be camera, and the management system of this cradle head control agreement can be a video monitoring system; Certainly, being not limited to this, can be also other systems that use the cradle head control consultative management.
Fig. 3 is the flow structure schematic diagram of the transmission system embodiment of data in EPON provided by the invention.Adopt the system of cradle head control agreement to comprise OLT and ONU in system shown in Figure 3 embodiment, wherein:
The first dispensing device 301 in OLT, when being used for the cradle head control protocol address repetition of the terminal equipment hang and the terminal equipment of another ONU under an ONU, when OLT initiated with the communicating by letter of certain terminal equipment, transmission comprised the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address;
The first deriving means 302 in ONU is connected with described the first dispensing device 301, is used for obtaining the identify label of ONU in described message after the message that receives the identify label that comprises ONU;
Comparison means 303 in ONU is connected with described the first deriving means 302, is used for described identify label and identify label are separately compared;
The second dispensing device 304 in ONU is connected with described comparison means 303, if for identical, sends described message according to the cradle head control protocol address in this message.
Wherein, the identify label of described ONU is to carry by the field that defined all ONU in message all resolve after receiving this message.
Wherein, all ONU field of all resolving after receiving this message is preamble field.
Wherein, the identify label of described ONU is logical links label L LID.
The cradle head control protocol address of the terminal equipment of wherein, hanging under a described ONU and the terminal equipment of another ONU repeats to comprise:
System is device address that terminal equipment distributes when surpassing 8, and the device address that surpasses 8 can be that the address of terminal equipment of 8 is identical by the part of system identification and cradle head control protocol address.
Wherein said system also comprises:
The first deriving means is used for obtaining the corresponding relation of the identify label of the device address of each terminal equipment and ONU, and preserves described corresponding relation;
Described the first dispensing device comprises:
Enquiry module is connected with described the first deriving means, is used for behind the device address that obtains user's input, and according to the device address of user's input, in described corresponding relation, the identify label of the ONU that the device address of inquiring user input is corresponding;
The first sending module is connected with described enquiry module, if be used for inquiring, with the device address of user's input rear 8 as the cradle head control protocol address, send the identify label of the ONU that comprises that inquiry obtains and the message of cradle head control protocol address.
Optionally, described OLT also comprises:
The second deriving means is used for obtaining the corresponding relation of the identify label of the device address of each terminal equipment and ONU;
Save set is connected with described the second deriving means, is used for rear 8 the identical terminal equipments in device address obtaining the identify label of whole ONU corresponding to same cradle head control protocol address according to from small to large arranged sequentially of device address;
Described the first dispensing device comprises:
The second acquisition module is connected with described save set, is used for behind the device address that obtains user's input, and the device address according to user's input obtains cradle head control protocol address corresponding to this device address;
Determination module, be connected with described the second acquisition module, be used for the identify label at whole ONU corresponding to described cradle head control protocol address, with this device address as binary expression formula, the decimal system numerical value and 256 that this expression formula is converted to is made quotient after division and is added N as a result after one, that determines N ONU in the identify label of whole ONU that described cradle head control protocol address is corresponding is designated ONU sign corresponding to described terminal equipment, and wherein N is positive integer;
The second sending module is connected with determination module with described the second acquisition module, is used for sending comprising the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address.
Wherein, the device address of described terminal equipment obtains in the following way, comprising:
Mode one: after ONU received the exterior arrangement instruction and obtains the device address of terminal equipment, when registering to OLT, the field in extended operation, in administering and maintaining the OAM agreement sent the device address of the terminal equipment of hanging under this ONU; OLT expands by reception the content that in the OAM agreement, field is carried, and obtains the corresponding relation of the identify label of device address that described system distributes for each terminal equipment and ONU;
Mode two: OLT is after the terminal equipment that newly adds being detected, and the ONU of the terminal equipment that newly adds by the downward extension of field in expansion OAM agreement sends the local device address that is configured to this terminal equipment configuration that newly adds
Wherein, described OLT also comprises:
Receiving system, be used for to receive outside input by numeral 0～9 Serial No. that forms;
Determine device, be connected with the first dispensing device with described receiving system, be used for the corresponding relation according to the device address of Serial No. and terminal equipment, determine the device address of described user's input.
Compare with the single employing cradle head control of prior art protocol address marking terminal equipment, system embodiment provided by the invention, when the cradle head control protocol address repetition of the terminal equipment of hanging under ONU in the system that is adopting the cradle head control agreement and the terminal equipment of another ONU, identify this terminal equipment in conjunction with the identify label of ONU, the man-to-man control of realization to the terminal equipment of identical cradle head control agreement under different ONU, convenient dilatation to system.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the described protection range of claim.
Claims (12)
1. the transmission method of data in an EPON, is characterized in that, comprising:
If the cradle head control protocol address of the terminal equipment of hanging under an optical network unit ONU in the system of employing cradle head control agreement and the terminal equipment of another ONU repeats, optical line terminal OLT is when initiating with the communicating by letter of certain terminal equipment, and transmission comprises the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address;
ONU is after the message that receives the identify label that comprises ONU, obtain the identify label of ONU in described message, and described identify label and identify label are separately compared, if identical, send described message according to the cradle head control protocol address in this message.
2. method according to claim 1, is characterized in that, the cradle head control protocol address of the terminal equipment of hanging under a described ONU and the terminal equipment of another ONU repeats to comprise:
System is device address that terminal equipment distributes when surpassing 8, and the device address that surpasses 8 can be that the device address of terminal equipment of 8 is identical by the part of system identification and cradle head control protocol address.
3. method according to claim 2 is characterized in that:
Before wherein sending the message of the identify label comprise the ONU that described terminal equipment is corresponding and cradle head control protocol address, also comprise:
OLT obtains the corresponding relation of the identify label of the device address of each terminal equipment and ONU, and preserves described corresponding relation;
Described transmission comprises the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address, comprising:
Behind the device address that obtains user's input, according to the device address of user's input, in described corresponding relation, the identify label of the ONU that the device address of inquiring user input is corresponding;
If inquire, with the device address of user input rear 8 as the cradle head control protocol address, send the identify label of the ONU that comprises that inquiry obtains and the message of cradle head control protocol address.
4. method according to claim 2, it is characterized in that, when terminal equipment in system add up to M the time, when described system adds new terminal equipment, the binary expression formula of integer M+1 is configured to the device address that system is this terminal equipment that newly adds, and wherein M is positive integer;
Before wherein sending the message of the identify label comprise the ONU that described terminal equipment is corresponding and cradle head control protocol address, also comprise:
OLT obtains the corresponding relation of the identify label of the device address of each terminal equipment and ONU;
OLT according to from small to large arranged sequentially of device address, obtains the identify label of whole ONU corresponding to same cradle head control protocol address with rear 8 identical terminal equipments in the device address;
Described transmission comprises the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address, comprising:
Behind the device address that obtains user's input, the device address according to user's input obtains cradle head control protocol address corresponding to this device address;
In the identify label of whole ONU corresponding to described cradle head control protocol address, with this device address as binary expression formula, the decimal system numerical value and 256 that this expression formula is converted to is made quotient after division and is added N as a result after one, that determines N ONU in the identify label of whole ONU that described cradle head control protocol address is corresponding is designated ONU sign corresponding to described terminal equipment, and wherein N is positive integer.
5. according to claim 3 or 4 described methods, is characterized in that, the device address of terminal equipment obtains in the following way, comprising:
Mode one: after ONU received the exterior arrangement instruction and obtains the device address of terminal equipment, when registering to OLT, the field in extended operation, in administering and maintaining the OAM agreement sent the device address of the terminal equipment of hanging under this ONU; OLT expands by reception the content that in the OAM agreement, field is carried, and obtains the corresponding relation of the identify label of device address that described system distributes for each terminal equipment and ONU; Perhaps,
Mode two: OLT is after the terminal equipment that newly adds being detected, and the ONU of the terminal equipment that newly adds by the downward extension of field in expansion OAM agreement sends the local device address that is configured to this terminal equipment configuration that newly adds.
6. according to claim 3 or 4 described methods, is characterized in that, the device address of described user's input obtains in the following way, comprising:
Receive outside input by numeral 0～9 Serial No. that forms;
According to the corresponding relation of the device address of Serial No. and terminal equipment, determine the device address of described user's input.
7. the transmission system of data in an EPON, is characterized in that, adopts the system of cradle head control agreement to comprise OLT and ONU, wherein:
The first dispensing device in OLT, when being used for the cradle head control protocol address repetition of the terminal equipment hang and the terminal equipment of another ONU under an ONU, when OLT initiated with the communicating by letter of certain terminal equipment, transmission comprised the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address;
The first deriving means in ONU is connected with described the first dispensing device, is used for obtaining the identify label of ONU in described message after the message that receives the identify label that comprises ONU;
Comparison means in ONU is connected with described the first deriving means, is used for described identify label and identify label are separately compared;
The second dispensing device in ONU is connected with described comparison means, if for identical, sends described message according to the cradle head control protocol address in this message.
8. system according to claim 7, is characterized in that, the cradle head control protocol address of the terminal equipment of hanging under a described ONU and the terminal equipment of another ONU repeats to comprise:
System is device address that terminal equipment distributes when surpassing 8, and the device address that surpasses 8 can be that the address of terminal equipment of 8 is identical by the part of system identification and cradle head control protocol address.
9. method according to claim 8 is characterized in that:
Wherein said system also comprises:
The first deriving means is used for obtaining the corresponding relation of the identify label of the device address of each terminal equipment and ONU, and preserves described corresponding relation;
Described the first dispensing device comprises:
Enquiry module is connected with described the first deriving means, is used for behind the device address that obtains user's input, and according to the device address of user's input, in described corresponding relation, the identify label of the ONU that the device address of inquiring user input is corresponding;
The first sending module is connected with described enquiry module, if be used for inquiring, with the device address of user's input rear 8 as the cradle head control protocol address, send the identify label of the ONU that comprises that inquiry obtains and the message of cradle head control protocol address.
10. system according to claim 8 is characterized in that:
Described OLT also comprises:
The second deriving means is used for obtaining the corresponding relation of the identify label of the device address of each terminal equipment and ONU;
Save set is connected with described the second deriving means, is used for rear 8 the identical terminal equipments in device address obtaining the identify label of whole ONU corresponding to same cradle head control protocol address according to from small to large arranged sequentially of device address;
Described the first dispensing device comprises:
The second acquisition module is connected with described save set, is used for behind the device address that obtains user's input, and the device address according to user's input obtains cradle head control protocol address corresponding to this device address;
Determination module, be connected with described the second acquisition module, be used for the identify label at whole ONU corresponding to described cradle head control protocol address, with this device address as binary expression formula, the decimal system numerical value and 256 that this expression formula is converted to is made quotient after division and is added N as a result after one, that determines N ONU in the identify label of whole ONU that described cradle head control protocol address is corresponding is designated ONU sign corresponding to described terminal equipment, and wherein N is positive integer;
The second sending module is connected with determination module with described the second acquisition module, is used for sending comprising the identify label of the ONU that described terminal equipment is corresponding and the message of cradle head control protocol address.
11. according to claim 9 or 10 described systems is characterized in that, the device address of described terminal equipment obtains in the following way, comprising:
Mode one: after ONU received the exterior arrangement instruction and obtains the device address of terminal equipment, when registering to OLT, the field in extended operation, in administering and maintaining the OAM agreement sent the device address of the terminal equipment of hanging under this ONU; OLT expands by reception the content that in the OAM agreement, field is carried, and obtains the corresponding relation of the identify label of device address that described system distributes for each terminal equipment and ONU; Perhaps,
Mode two: OLT is after the terminal equipment that newly adds being detected, and the ONU of the terminal equipment that newly adds by the downward extension of field in expansion OAM agreement sends the local device address that is configured to this terminal equipment configuration that newly adds
12. according to claim 9 or 10 described systems is characterized in that, described OLT also comprises:
Receiving system, be used for to receive outside input by numeral 0～9 Serial No. that forms;
Determine device, be connected with the first dispensing device with described receiving system, be used for the corresponding relation according to the device address of Serial No. and terminal equipment, determine the device address of described user's input.
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| CN201310064936.6A CN103152413B (en) | 2013-03-01 | 2013-03-01 | The transmission method of data and system in a kind of EPON |
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