CN108418648A - A kind of signal processing apparatus, method and a kind of intelligent gateway device - Google Patents
A kind of signal processing apparatus, method and a kind of intelligent gateway device Download PDFInfo
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- CN108418648A CN108418648A CN201710071921.0A CN201710071921A CN108418648A CN 108418648 A CN108418648 A CN 108418648A CN 201710071921 A CN201710071921 A CN 201710071921A CN 108418648 A CN108418648 A CN 108418648A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0254—Optical medium access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2869—Operational details of access network equipments
- H04L12/2878—Access multiplexer, e.g. DSLAM
- H04L12/2879—Access multiplexer, e.g. DSLAM characterised by the network type on the uplink side, i.e. towards the service provider network
- H04L12/2885—Arrangements interfacing with optical systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2869—Operational details of access network equipments
- H04L12/2878—Access multiplexer, e.g. DSLAM
- H04L12/2887—Access multiplexer, e.g. DSLAM characterised by the offered subscriber services
- H04L12/2889—Multiservice, e.g. MSAN
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- Computer Networks & Wireless Communication (AREA)
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- Optical Communication System (AREA)
Abstract
The embodiment of the present invention provides a kind of signal processing apparatus, method and a kind of intelligent gateway device, including wavelength-division multiplex unit, at least one electrooptical device, first signal processing unit and second signal processing unit, wavelength-division multiplex unit receives the optical signal comprising two kinds of different-wavebands and carries out wavelength-division multiplex processing, obtain the first optical signal and the second optical signal, and it is transmitted to electrooptical device and carries out opto-electronic conversion processing respectively, first electric signal is converted to radiofrequency signal by the first signal processing unit, second electric signal is converted to the first data-signal by second signal processing unit；The embodiment of the present invention is handled the signal of different-waveband using independently arranged signal processing unit, its design structure is simple, so that manufacturer can also control the core technology of intelligent gateway, greatly reduce the difficulty and cost of production, its networking mode is also simple simultaneously, the communication performance and user experience for ensuring product, also meet the business demand of operator.
Description
Technical field
The present invention relates to a kind of field of communication technology more particularly to signal processing apparatus, a kind of method and intelligent gateways
Equipment.
Background technology
With FTTH (Fiber To The Home, optical fiber directly arrive family) market large-area applications at home, connect
Enter bandwidth to be significantly enhanced.It has higher service transparency, is theoretically adapted to various rates and standard signal.Together
When have the advantages that low cost, easy care, be considered as following developing direction of access net.
Current telecommunications networks, cable TV network, computer network it is just compatible with interpenetrate, gradually develop into complete
The unified communication network of ball.The integration of three networks has been raised to China's strategic height, and traditional wired TV coaxial cable net
Network and internet are two independent networks, need to be laid with two kinds of networks, it is higher to set up cost.How to reduce laying cost is
One problem of networking.
Currently on the market, have part gateway equipment by an optical fiber can support CATV (Cable Television,
Cable television) and Internet service, in this way coaxial cable cable TV network is eliminated when being laid with network.This gateway device
The main scheme for using three wave band optical modules, which is a kind of single fiber three-way optical module, can be carried simultaneously by single fiber access
For CATV and two kinds of internet business.But use this optical module gateway device cost it is higher, while core technology by
It is formed on three band of light modular manufacture producers.
BOB (BOSA on Board) technology is referred to BOSA (Bi-Directional Optical Sub-
Assembly, optical transceiver module interface module) it is directly welded on the pcb board of equipment, reduce optical mode metal shell in the block
Equal structural members cost, reduces optical mode pcb board material cost in the block, totally significantly reduces gateway device cost.And equipment
Manufacturer can be with the core technology of control gateway device, it is ensured that the communication performance and user experience of product, while can basis
The business of operator needs, and the parameter index of product is flexibly arranged.
Invention content
An embodiment of the present invention provides a kind of signal processing apparatus, method and a kind of intelligent gateway devices, existing to solve
There is the problem of gateway device networking cost height and networking mode complexity.
In order to solve the above technical problems, an embodiment of the present invention provides a kind of signal processing apparatus, including：Wavelength-division multiplex list
First, at least one electrooptical device, the first signal processing unit and second signal processing unit；
The wavelength-division multiplex unit for receiving the optical signal for including two kinds of different-wavebands, to it is described include two kinds of difference waves
The optical signal of section carries out wavelength-division multiplex processing, obtains the first optical signal and the second optical signal, and by first optical signal and institute
The second optical signal transmission is stated to the electrooptical device；
The electrooptical device is used to carry out opto-electronic conversion processing to first optical signal and the second optical signal respectively,
It is correspondingly generated the first electric signal and the second electric signal；
First electric signal is converted to and is penetrated for receiving first electric signal by first signal processing unit
Frequency signal；
The second signal processing unit is converted to for receiving second electric signal, and by second electric signal
One data-signal.
The embodiment of the present invention also provides a kind of intelligent gateway device, including signal processing apparatus above-mentioned.
The embodiment of the present invention also provides a kind of signal processing method, including：
Receive the optical signal for including two kinds of different downstream bands；
To it is described include that the optical informations of two kinds of different downstream bands carries out wavelength-division multiplex processing, obtain the first optical signal and the
Two optical signals；
Opto-electronic conversion processing is carried out respectively to first optical signal and second optical signal, is correspondingly generated the first electricity
Signal and the second electric signal；
First electric signal progress signal processing is obtained into radiofrequency signal, and signal is carried out to second electric signal
Processing obtains the first data-signal.
The beneficial effects of the invention are as follows：
Signal processing apparatus, method and a kind of intelligent gateway device provided according to embodiments of the present invention, passes through wavelength-division
Multiplexing Unit receives the optical signal comprising two kinds of different-wavebands and carries out wavelength-division multiplex processing, obtains the first optical signal and the second light letter
Number, and first optical signal and second optical signal transmission are carried out at opto-electronic conversion respectively to the electrooptical device
First electric signal is converted to radiofrequency signal by reason, the first signal processing unit, and second signal processing unit turns the second electric signal
It is changed to the first data-signal；The embodiment of the present invention uses independently arranged first signal processing unit and second signal processing unit
The service signal of respectively different wave band is handled so that and production firm can also control the core technology of intelligent gateway, and
The design structure is simple, greatly reduces the cost of production, meanwhile, using signal processing apparatus provided in an embodiment of the present invention and
Intelligent gateway device carries out networking, and networking mode is simple, and cost is also low, it is ensured that the communication performance and user experience of product,
Meet the business demand of operator.
Description of the drawings
Fig. 1 is the structure diagram for the signal processing apparatus that the embodiment of the present invention one provides；
Fig. 2 is the second structure diagram of the signal processing apparatus that the embodiment of the present invention one provides；
Fig. 3 is the third structure diagram for the signal processing apparatus that the embodiment of the present invention one provides；
Fig. 4 is the 4th kind of structure diagram of the signal processing apparatus that the embodiment of the present invention one provides；
Fig. 5 is the 5th kind of structure diagram of the signal processing apparatus that the embodiment of the present invention one provides；
Fig. 6 is the structure diagram of signal processing apparatus provided by Embodiment 2 of the present invention；
Fig. 7 is the second structure diagram of signal processing apparatus provided by Embodiment 2 of the present invention；
Fig. 8 is the third structure diagram of signal processing apparatus provided by Embodiment 2 of the present invention；
Fig. 9 is the structure diagram for the intelligent gateway device that the embodiment of the present invention three provides；
Figure 10 is the flow chart for the signal processing method that the embodiment of the present invention four provides.
Specific implementation mode
The embodiment of the present invention is described in further detail below by specific implementation mode combination attached drawing.
Embodiment one：
In order to solve the problems, such as that existing gateway equipment network is of high cost and networking mode is complicated, one kind is present embodiments provided
Signal processing apparatus, including wavelength-division multiplex unit (Wavelength Division Multiplexing, abbreviation WDM), photoelectricity
Switching device, the first signal processing unit and second signal processing unit, first signal processing unit is by wavelength-division multiplex unit
It is converted into being sent to video terminal use after radiofrequency signal with the cable TV signal that electrooptical device is handled, this second
The internet signal obtained after wavelength-division multiplex unit and electrooptical device processing is converted into the first data by signal processing unit
Signal, and extract internet data therein and be sent to user equipment.It will be received comprising two by the signal processing apparatus
The optical signal of the different downstream bands of kind is detached, and the processing of independent signal processing unit is then carried out, this separately two-way
Mode reduces the integrated level requirement of signal processing apparatus, to reduce production cost, and greatly facilitates the more nets of user
Installation.
Fig. 1 is referred to, Fig. 1 is the structure diagram for the signal processing apparatus that the embodiment of the present invention one provides, the signal processing
Device 1 includes：11, electrooptical devices 12 of wavelength-division multiplex unit, and connect respectively with the electrooptical device 12
First signal processing unit 13 and second signal processing unit 14 are wherein：
The wavelength-division multiplex unit 11 includes two kinds of different waves for receiving the optical signal for including two kinds of different-wavebands, and to this
Section optical signal carry out wavelength-division multiplex processing, obtain the first optical signal and the second optical signal, by first optical signal and this second
Optical signal transmission is to the electrooptical device 12, wherein first optical signal includes cable television service optical signal, second light
Signal includes Internet service optical signal.
The input terminal of the electrooptical device 12 is connect with the output end of the wavelength-division multiplex unit 11, for respectively to this
One optical signal and the second optical signal carry out opto-electronic conversion processing, are correspondingly generated the first electric signal and the second electric signal.
The input terminal of first signal processing unit 13 is connect with the first output end of electrooptical device 12, for receiving
First electric signal, and first electric signal is converted into radiofrequency signal.
The input terminal of the second signal processing unit 14 is connect with the second output terminal of electrooptical device 12, for receiving
Second electric signal, and second electric signal is converted into the first data-signal.
In the present embodiment, first signal processing unit 13 by the first electric signal when being converted to radiofrequency signal, specifically
According to country variant, the CATV RF indexes requirement in area, which is converted to and meets penetrating for RF index requirement
Frequency signal, similarly, second signal processing unit 14 are interacted particular by corresponding internet and are assisted when converting the second electric signal
View is converted, and second signal processing unit 14 is when obtaining the first data-signal, it is also necessary to according to currently used internet
Interaction mechanism and interaction protocol between user realize conversion, the specific data packet of extraction.
In the present embodiment, it comprising the optical signal of two kinds of different-wavebands can should be the mixed light letter inputted by single fiber
Number, which includes at least cable television optical signal and internet optical signal, when mixing optical signal passes through wavelength-division multiplex
After unit 11, wavelength-division multiplex unit 11 is divided into two bundles optical signal by wavelength-division multiplex by optical signal is mixed, wherein light beam is believed
Number include cable television optical signal, the second beam optical signal includes internet optical signal.Two-beam signal is exported to photoelectric converter
Part 12, which is respectively converted into electric signal by two-beam signal, and exports to the first signal processing unit 13
With second signal processing unit 14, then converted respectively by the first signal processing unit 13 and second signal processing unit 14.
As shown in Fig. 2, second of structure chart of the signal processing apparatus 1 provided for this example, specifically, in this example
In, which includes radio frequency switching circuitry 131, the radio frequency switching circuitry 131 and the electrooptical device
12 the first output end connection, for the cable TV signal for including in first optical signal to be converted to radiofrequency signal, concurrently
It send to external video terminal.
Further, in order to ensure that the radiofrequency signal that exports can reach preset transmitting after radio frequency switching circuitry 131 is converted
It is required that as shown in figure 3, first signal processing unit 13 further includes compensation circuit 132, which penetrates for receiving
The radiofrequency signal that frequency converter circuit 131 obtains after converting, adjustment is compensated according to preset offset rule to the radiofrequency signal,
Specifically, compensating adjustment to radiofrequency signal according to preset radiofrequency signal parameter, it is then then forwarded to video terminal.
In practical applications, each video terminal is all different the reception setting of radiofrequency signal, each radio frequency band institute
The business of carrying also differs, and therefore, the first signal processing unit 13 is converted in the first optical signal that will be after opto-electronic conversion
After radiofrequency signal, the parameters such as amplitude of obtained radiofrequency signal can not meet connecing for the RF receiving circuit of video terminal
Receipt part will realize that video terminal can be accurately received and recognize corresponding business information, and the first signal processing unit 13 is also
It needs to compensate the radiofrequency signal that radio frequency conversion circuit 131 is converted to by compensation circuit 132, it is preferred that the compensation
Circuit 132 is amplified signal according to preset signal parameter, compensates, or even adjusts the first signal by compensation circuit 132
The matching impedance of processing unit 13 is adjusted radiofrequency signal so that final radiofrequency signal meets the reception item of video terminal
Part.Preferably, which specifically may be used micro-control unit MCU, gain circuitry, compensation circuit and monitoring circuit
It realizes, micro-control unit MCU monitors circuit by control and is monitored to each parameter of transformed radiofrequency signal, such as RF width
Degree, voltage etc., gain circuitry and compensation circuit compensate enhanced processing according to the concrete condition of monitoring to radiofrequency signal so that
The radiofrequency signal of first signal processing unit, 13 final output is stable radio-frequency signal of wired TV and meets video terminal
The radiofrequency signal of condition of acceptance.
In the present embodiment, the second output terminal of the input terminal Yu electrooptical device 12 of the second signal processing unit 14
Connection, treated for receiving 12 opto-electronic conversion of electrooptical device second electric signal convert second electric signal
For the first data-signal, specifically, second electric signal includes internet signal, the preferred second signal processing unit 14 is wrapped
Include data processing unit, which is converted to the first data-signal by internet signal, and be additionally operable to from this
Internet data is extracted in one data-signal and is sent to user equipment, specifically the extraction interconnection netting index from first data-signal
It is sent by network interface according to packet.
In the present embodiment, which further includes receiving the second data uploaded from user equipment
Signal, and be uplink signal by second data signal modulation, and opto-electronic conversion and multiplex are carried out to the uplink signal
It is sent after processing.
Preferably, when second signal processing unit 14 carries out conversion process to the second data-signal, second signal processing
Unit 14 is to be selected to be converted to second data-signal into the uplink with communication protocol corresponding wavelength according to current communication protocol
Signal, for example, the communication protocol provide uplink signal wavelength be 1310nm when, transfer process is：Second signal processing unit
Second data signal modulation according to the regulation of communication protocol is uplink signal that wavelength is 1310nm by 14, then via opto-electronic conversion
Device 12 and wavelength-division multiplex unit 11 are converted, after multiplex processing, obtain meeting uplink optical signal as defined in the communication protocol,
It is transferred on fiber plant by single fiber optical fiber again.
Certainly, in the present embodiment, the second signal processing unit 14 to the second data-signal carry out conversion process when,
Can also be by the second data signal modulation at the uplink signal of other wavelength, specifically signal processing apparatus is currently worked logical
Agreement is believed to determine, for example can be the uplink signal of 1260nm wavelength, can also be the uplink signal etc. of 1460nm wavelength.
It in the present embodiment, can also be by the first signal processing for convenience to the Assembling Production of the signal processing apparatus 1
Unit 13 and the electrooptical device 12 encapsulate production together, specifically as shown in figure 4, can be by 13 He of the first signal processing unit
The electrooptical device 12 is used together a PCB single board and is packaged assembly.
As shown in figure 4, it is mono- a PCB to be used together in the first signal processing unit 13 and the electrooptical device 12
Plate is packaged assembly.After the wavelength-division multiplex unit 11 receives the mixing optical signal of single fiber input, by the mixing optical signal
In cable television optical signal and internet optical signal carry out separating treatment, output is to electrooptical device 12, photoelectric converter
Part 12 will respectively export after cable television optical signal and the conversion of internet optical signal into corresponding electric signal processing unit.
Preferably, after cable television optical signal is converted to the first electric signal by electrooptical device 12, pass through veneer cabling
It is transferred to the conversion of radio frequency switching circuitry 131, then is launched by compensation circuit 132；And electrooptical device 12 is by internet light
After signal is converted to the second electric signal, second signal processing unit 14 is transferred to by veneer cabling and sends user equipment to.
As shown in figure 5, can also a PCB be used together for second signal processing unit 14 and the electrooptical device 12
Veneer is packaged assembly.Specific processing procedure with it is essentially identical in Fig. 4.
Signal processing apparatus provided in an embodiment of the present invention, by using independently arranged first signal processing unit and
Binary signal processing unit is respectively handled different service signals so that production firm can also control the core of intelligent gateway
Heart technology, and the design structure is simple, greatly reduces the cost of production, meanwhile, using letter provided in an embodiment of the present invention
Number processing unit and intelligent gateway device carry out networking, and networking mode is simple, and cost is also low, it is ensured that the communication performance of product and
User experience also meets the business demand of operator.
Embodiment two：
In the present embodiment, with the quantity of at least one electrooptical device be two to signal provided by the invention at
Reason device is described in detail.As shown in fig. 6, Fig. 6 is the structure diagram of signal processing apparatus provided in this embodiment, the signal
Processing unit 1 includes wavelength-division multiplex unit 11, the first electrooptical device 21, the second electrooptical device 22, and with first
The first signal processing unit 13 that electrooptical device 21 connects, the second signal processing being connect with the second electrooptical device 22
Unit 14, wherein the first electrooptical device 21 is served only for the first optical signal being converted to the first electric signal, the second opto-electronic conversion
Device 22 is served only for the second optical signal being converted to the second electric signal.
Wherein, which includes two kinds for receiving the optical signal for including two kinds of different-wavebands, and to this
The optical signal of different-waveband carries out wavelength-division multiplex processing, obtains the first optical signal and the second optical signal, and respectively believe the first light
Number output to the first electrooptical device 21 is converted to the first electric signal, and the second optical signal is exported to the second electrooptical device
22 are converted to the second electric signal.
The input terminal of first signal processing unit 13 is connect with the first electrooptical device 21, for receiving first electricity
Signal, and first electric signal is converted into radiofrequency signal.
The input terminal of the second signal processing unit 14 is connect with the second electrooptical device 22, for receiving second electricity
Signal, and second electric signal is converted into the first data-signal.
In the present embodiment, as shown in fig. 7, first signal processing unit 13 includes radio frequency switching circuitry 131, the radio frequency
The input terminal of conversion circuit 131 is connect with the output end of first electrooptical device 21, for converting first electric signal
For radiofrequency signal, and it is sent on external video terminal.
Further, which further includes compensation circuit 132, and concrete structure is as shown in figure 8, the benefit
Circuit 132 is repaid for receiving the radiofrequency signal obtained after radio frequency switching circuitry 131 is converted, this is penetrated according to preset offset rule
Frequency signal compensates adjustment, and the radiofrequency signal adjusted is exported to video terminal.
In practical applications, which can be used photodiode to realize, photodiode will
The first optical signal that wavelength-division multiplex unit 11 transmits is converted to the first electric signal, then is converted to by radio frequency switching circuitry 131
Radiofrequency signal makees further compensation adjustment by compensation circuit 132 so that radiofrequency signal meets the reception item of video terminal
Part.
Preferably, in the present embodiment, the compensation circuit 132 can specifically include micro-control unit MCU, gain circuitry,
Compensation circuit realizes that micro-control unit MCU monitors circuit to each of transformed radiofrequency signal by control with monitoring circuit
Parameter is monitored, such as RF amplitudes, voltage, gain circuitry and compensation circuit according to the concrete condition of monitoring to radiofrequency signal into
Row compensation enhanced processing so that the radiofrequency signal of 13 final output of the first signal processing unit is that stable cable television radio frequency is believed
Number and meet the radiofrequency signal of video terminal condition of acceptance.
In the present embodiment, the second signal processing unit 14 is by internet signal when being converted to the first data-signal,
It is realized particular by a data processing unit is arranged in the second signal processing unit 14, wherein second photoelectricity turns
The input terminal of parallel operation part 22 is connect with the second output terminal of the wavelength-division multiplex unit 11, the input terminal of the data processing unit and
The output end of two electrooptical devices 22 connects, for being exported second electrooptical device 22 according to preset communication protocol
Internet signal be converted to first data-signal, and extract internet data packet from first data-signal and pass through connection
The cable of network interface is sent.
Preferably, which specifically may be used BOSA (Bi-Directional Optical
Sub-Assembly, optical transceiver module interface module) and laser diode drive-receive chip to realize, the BOSA work
When, which needs to drive-receive chip to be driven by laser diode so that BOSA realizations switch to the second optical signal
Second electric signal.
Preferably, which is realized using passive optical-fiber network chip (PON chips), is carried in PON chips
After taking processing, internet data packet is obtained, by kilomega network port transmission to user equipment.
In the present embodiment, when first optical signal includes the downlink optical signal that wavelength is 1550nm, first photoelectricity
The downlink optical signal that the wavelength that switching device 21 receives 11 output of wavelength-division Multiplexing Unit is 1550nm, and the downlink light that will be received
Signal carries out opto-electronic conversion, obtains corresponding first electric signal, which carries out first signal
Conversion, exports stable CATV radiofrequency signals.
When second optical signal includes the downlink optical signal that wavelength is 1490nm, the downlink optical signal of the 1490nm leads to
It crosses another optical fiber and is converted to the second electric signal into the second electrooptical device 22, then converted by second signal processing unit 14
For the first data-signal；Drive-receive chip drives BOSA to work by laser diode during conversion, to the second electricity
Signal is converted, is compensated, then by PON chip processings after, obtain corresponding first data-signal, and use is transferred to by network interface
Family equipment.
Further, which is additionally operable to receive the second data-signal that user equipment is sent, and
Second data-signal is converted into electric signal, then is converted to the electric signal and present communications by the second electrooptical device 22
The uplink optical signal of the corresponding wavelength of agreement, such as the uplink optical signal of 1310nm is converted to, pass through wavelength-division multiplex unit 11
It is sent on local side apparatus after multiplex processing.
The wavelength of the optical signal referred to for the present embodiment be not only defined in above-mentioned offer 1550nm, 1490nm,
1310nm, the optical signal can also include the optical signal of other wavelength, such as：1260nm, 1460nm, 1530nm etc..
Embodiment three：
Fig. 9 is referred to, Fig. 9 is the structure diagram of intelligent gateway device provided in an embodiment of the present invention, which sets
Standby 3 include that above-described embodiment may be used in main control module 31 (PON chips) and signal processing apparatus 1, the signal processing apparatus 1
Any one signal processing apparatus 1 provided in one and two, it is preferred that carried out for two electrooptical devices are set below
Explanation.
In the present embodiment, which includes wavelength-division multiplex unit 11, the first electrooptical device 21, the
Two electrooptical devices 22, the first signal processing unit 13 and second signal processing unit 14；The main control module 31 is total by IIC
Line is connect with the signal processing apparatus 1, for controlling the optical signal that includes two kind different-waveband of the signal processing apparatus 1 to input
It is handled, wavelength-division multiplex unit 11 receives the optical signal for including two kinds of different-wavebands by single fiber optical fiber, includes two kinds by this
The optical signal of different-waveband carries out wavelength-division multiplex processing, obtains the first optical signal and the second optical signal, wherein the first optical signal passes
The first electrooptical device 21 is transported to, the sub- device 21 of first opto-electronic conversion carries out opto-electronic conversion processing to the first optical signal, raw
At the first electric signal, then first electric signal is converted into radiofrequency signal by the first signal processing unit 13 and is sent.
Preferably, which includes radio frequency switching circuitry 131 and compensation circuit 132, passes through radio frequency
The first electric signal that this is received is converted to radiofrequency signal by conversion circuit 131, then by compensation circuit 132 to the radiofrequency signal
Adjustment is compensated, standard compliant radiofrequency signal is exported.
The wavelength-division multiplex unit 11 turns second optical signal transmission to second electrooptical device 22, second photoelectricity
Parallel operation part 22 carries out opto-electronic conversion processing to the second optical signal, generates the second electric signal, then will by second signal processing unit 14
Second electric signal is converted to the first data-signal, it is preferred that can be arranged at a data in second signal processing unit 14
Manage unit, the first data-signal be converted to according to preset internet interaction protocol by the data processing unit, and from this
Internet data packet is extracted in one data-signal, and the internet data packet extracted is sent.
In the present embodiment, which is additionally operable to receive the second data letter that user equipment uploads
Number, and by second data signal modulation be uplink signal, and to the uplink signal carry out opto-electronic conversion and multiplex processing after
It sends.Preferably, the second data signal modulation is electric signal by this, is then converted by the second electrooptical device 22
The uplink optical signal for being 1310nm for wavelength is sent after carrying out multiplex processing via the wavelength-division multiplex unit.
In practical applications, existing CATV light-receivings may be used in the first signal processing unit 13 provided in this embodiment
Module realizes that the CATV optical receiver modules include MCU (Microcontroller Unit, micro-control unit), Amplifier+
AGC (automatic growth control), RF On/Off, Equalization Circuit (compensation circuit), RF monitoring (RF
Monitoring), Temperature monitoring (monitoring temperature), Impedance Matching Circuit (impedance matching),
The optical signal comprising two kinds of different-wavebands received is carried out wavelength-division multiplex processing by the wavelength-division multiplex unit, obtains the first light letter
Number, which is exported to the first electrooptical device 21 and is converted, the first electric signal is obtained, finally by CATV
Optical receiver module carries out the processing such as radio frequency conversion, signal compensation, to obtain the condition of acceptance radiofrequency signal for meeting video equipment；
BOB (BOSA on Board) optical network units may be used to realize in second signal processing unit 14, the BOB light
Network element is compatible with Gpon, Epon two kinds of transmission code stream formats of SFF-8472 agreements, which will receive
The optical signal for including two kinds of different-wavebands carries out wavelength-division multiplex processing, obtains the second optical signal, by second optical signal export to
Second electrooptical device 22 is converted, and the second electric signal is obtained, it is preferred that second electrooptical device 22 includes BOSA
With laser diode drive-receive chip, converted finally by the second electric signal of BOB optical network units pair, obtain first
Data-signal.
Specifically, first optical signal is the optical signal of the downstream band of 1550nm wavelength, which is
The optical signal of the downstream band of 1490nm wavelength, the optical signal of both wavelength enter the present embodiment by single fiber optical fiber respectively and carry
The intelligent gateway device 3 of confession, is specifically divided into two-beam signal by wavelength-division multiplex unit, one of them includes that wavelength is 1550nm
CATV optical signals, another includes the internet optical signal that wavelength is 1490nm.Including the CATV light that wavelength is 1550nm
Signal is input to by optical fiber in the first electrooptical device 21, and the first electrooptical device 21 is converted to CATV optical signals
First electric signal, it is defeated under AGC of first electric signal in CATV optical receiver modules, compensation circuit, the collective effect of match circuit
Go out stable CATV radiofrequency signals.
Preferably, CATV radiofrequency signals can carry out output control by built-in RF On/Off.CATV optical receiver modules
The working condition of internal MCU real-time monitoring modules, including：RF amplitudes, temperature, voltage, 1550nm luminous powers.
And another includes the internet optical signal that wavelength is 1490nm, enters the second opto-electronic conversion by another optical fiber
In device 22, internet optical signal is converted to the second electric signal by the second electrooptical device 22, and the second electric signal is in BOB light nets
The first data-signal is converted under the action of network unit, and user equipment is transferred to by network interface.
In the present embodiment, which is additionally operable to receive the second data-signal, and by second data-signal
It is modulated to uplink signal, after second electrooptical device 22 and the wavelength-division multiplex unit 11 processing, local side is sent to and sets
It is standby, it is preferred that the modulated uplink signal is that wavelength is 1310nm uplink signals, and specific data flow is as follows：User
Equipment upload the second data-signal by kilomega network port transmission to intelligent gateway device 3 provided in this embodiment, by PON chips
It after processing, is sent to BOB optical network units and is converted to electric signal, being converted to wavelength via second electrooptical device 22 is
The optical signal of 1310nm is transferred to local side apparatus after being reflected via WDM units by single fiber optical fiber.
In the present embodiment, can also be other wavelength, example for the wavelength of the optical signal of signal processing apparatus conversion
Such as：It can select which wave band any wave band in O, E, S, C, L, U wave band, specific signal processing apparatus selection work in,
It is determined according to its current communication protocol, e.g., 1 corresponding wave band of preset agreement is O wave bands, 2 corresponding wave of agreement
Section is L-band etc..
In addition, the signal processing apparatus of intelligent gateway device provided in this embodiment can also be that only one photoelectricity of setting turns
Parallel operation part, when an electrooptical device is arranged, which receives the mixing optical signal of single fiber input
Afterwards, by the cable television optical signal and internet optical signal progress separating treatment in the mixing optical signal, output to opto-electronic conversion
Device, electrooptical device export after converting cable television optical signal and internet optical signal to corresponding electric signal respectively
It manages in unit.
Example IV：
Referring to FIG. 10, Figure 10 is the flow chart of signal processing method provided in an embodiment of the present invention, it as shown in Figure 10, should
Method is applicable to processing of the home gateway to signal, and the conversion of cable television is especially used to receive, below based on passing through family
Gateway realizes that the application scenarios of internet and TV used are further described this method simultaneously, which processes
Journey is as follows：
S601, the optical signal for including two kinds of different downstream bands is received by single fiber optical fiber, which is specifically at least
Mixing optical signal including cable TV signal and internet signal；
S602, the optical signal for by this including two kinds of different downstream bands carry out wavelength-division multiplex processing, obtain the first optical signal
With the second optical signal；
In the present embodiment, after home gateway receives the mixing optical signal, by wavelength-division multiplex unit by the mixing
Optical signal carries out partial wave processing, obtains cable TV signal and internet signal.
First optical signal and second optical signal are carried out opto-electronic conversion processing by S603 respectively, corresponding to generate first
Electric signal and the second electric signal；
It in this step, specifically can be by sharing one for the conversion process of the first optical signal and the second optical signal
The mode of electrooptical device is realized, can also be realized by way of two electrooptical devices, when the signal processing
When an electrooptical device is only arranged in device, the input terminal of the electrooptical device connects with the output end of wavelength-division multiplex unit
It connects, the first output end of the electrooptical device is connect with the first signal processing unit, for the first optical signal to be converted into
One electric signal output gives the first signal processing unit；The second output and the second signal processing unit of the electrooptical device connect
It connects, for the second optical signal to be converted to the second electric signal, and exports and handled to second signal processing unit.
When the signal processing apparatus includes two electrooptical devices, wavelength-division multiplex unit believes the first light isolated
Number output give the first electrooptical device carry out opto-electronic conversion, obtain the first electric signal and export to the first signal processing unit；
The second optical signal isolated is exported and carries out opto-electronic conversion to the second electrooptical device by wavelength-division multiplex unit, obtains the second electricity
Signal is simultaneously exported to second signal processing unit.
First electric signal is obtained radiofrequency signal by S604 by signal processing, and by second electric signal by believing
Number processing obtains the first data-signal.
In the present embodiment, which is obtained radiofrequency signal by signal processing and includes by this：By wired electricity
Radio frequency conversion process is carried out depending on signal and exports radiofrequency signal, and tune is compensated to the radiofrequency signal according to preset offset rule
It is whole.
In practical applications, each video terminal is all different the reception setting of radiofrequency signal, each radio frequency band institute
The business of carrying also differs, and therefore, transformed first optical signal is being converted to radiofrequency signal by the first signal processing unit
Afterwards, the parameters such as amplitude of obtained radiofrequency signal can not meet the condition of acceptance of the RF receiving circuit of video terminal,
Realize that video terminal can be accurately received and recognize corresponding business information, the first signal processing unit will also need to after converting
Radiofrequency signal compensate, by amplifying to signal, compensate, in addition the first signal processing unit of adjustment matching impedance to penetrating
Frequency signal is adjusted so that final radiofrequency signal meets the condition of acceptance of video terminal.
Second electric signal is obtained the first data-signal by this by signal processing：It will according to preset communication protocol
The internet signal is converted to the first data-signal, and extracts internet data packet from first data-signal and sent out by network interface
It sees off.
In the present embodiment, after carrying out signal processing to second electric signal and obtaining the first data-signal, further include：
The second data-signal that user equipment uploads is received, and is uplink signal by second data signal modulation, and to the uplink
Signal is sent after carrying out opto-electronic conversion and multiplex processing.
In conclusion signal processing apparatus provided in an embodiment of the present invention, method and a kind of intelligent gateway device, pass through
Wavelength-division multiplex unit receives the optical signal comprising two kinds of different-wavebands and carries out wavelength-division multiplex processing, obtains the first optical signal and second
Optical signal, and first optical signal and second optical signal transmission are carried out at opto-electronic conversion respectively to the electrooptical device
First electric signal is converted to radiofrequency signal by reason, the first signal processing unit, and second signal processing unit turns the second electric signal
It is changed to the first data-signal；The embodiment of the present invention uses independently arranged first signal processing unit and second signal processing unit
The service signal of respectively different wave band is handled so that and production firm can also control the core technology of intelligent gateway, and
The design structure is simple, greatly reduces the cost of production, meanwhile, using signal processing apparatus provided in an embodiment of the present invention and
Intelligent gateway device carries out networking, and networking mode is simple, and cost is also low, it is ensured that the communication performance and user experience of product,
Meet the business demand of operator.
Obviously, those skilled in the art should be understood that each module of the embodiments of the present invention or each step can be used
General computing device realizes that they can be concentrated on a single computing device, or be distributed in multiple computing device institutes
On the network of composition, optionally, they can be realized with the program code that computing device can perform, it is thus possible to by them
It is stored in computer storage media (ROM/RAM, magnetic disc, CD) and is performed by computing device, and in some cases, it can
With the steps shown or described are performed in an order that is different from the one herein, or they are fabricated to each integrated circuit dies
Block, or by them multiple modules or step be fabricated to single integrated circuit module and realize.So the present invention does not limit
It is combined in any specific hardware and software.
It cannot recognize being further described made by the embodiment of the present invention the above content is specific embodiment is combined
The specific implementation of the fixed present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs,
Without departing from the inventive concept of the premise, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention
Protection domain.
Claims (11)
1. a kind of signal processing apparatus, including：Wavelength-division multiplex unit, at least one electrooptical device, and respectively with it is described
The first signal processing unit and second signal processing unit of electrooptical device connection；
The wavelength-division multiplex unit for receiving the optical signal for including two kinds of different-wavebands, to it is described include two kinds of different-wavebands
Optical signal carries out wavelength-division multiplex processing, obtains the first optical signal and the second optical signal, and by first optical signal and described the
Two optical signal transmissions are to the electrooptical device；
The electrooptical device is corresponding for carrying out opto-electronic conversion processing to first optical signal and the second optical signal respectively
Ground generates the first electric signal and the second electric signal；
First signal processing unit is converted to radio frequency letter for receiving first electric signal, and by first electric signal
Number；
Second electric signal is converted to the first number by the second signal processing unit for receiving second electric signal
It is believed that number.
2. signal processing apparatus according to claim 1, which is characterized in that when the electrooptical device is one,
The input terminal of the electrooptical device is connect with the output end of the wavelength-division multiplex unit, for the wavelength-division multiplex unit
The first optical signal and the second optical signal of output carry out opto-electronic conversion, and the electric signal output being converted to described first is believed
Number processing unit and second signal processing unit.
3. signal processing apparatus according to claim 1, which is characterized in that when the electrooptical device is two,
First electrooptical device is set between the wavelength-division multiplex unit and first signal processing unit, for by described the
One optical signal is converted to the first electric signal, and exports to first signal processing unit；
Second electrooptical device is set between the wavelength-division multiplex unit and the second signal processing unit, is used for institute
It states the second optical signal and is converted to the second electric signal, and export to the second signal processing unit.
4. signal processing apparatus according to any one of claims 1 to 3, which is characterized in that the first signal processing list
Member includes radio frequency switching circuitry and compensation circuit；
The radio frequency switching circuitry is used to first electric signal being converted to radiofrequency signal, and exports to the compensation circuit；
The compensation circuit is used to according to preset offset rule compensate adjustment to the radiofrequency signal, wherein described the
One electric signal includes cable TV signal.
5. signal processing apparatus according to claim 4, which is characterized in that the second signal processing unit is used for,
When second electric signal is internet signal, the internet signal is converted to described first according to preset communication protocol
Data-signal, and extract internet data packet from first data-signal and sent by network interface.
6. signal processing apparatus according to claim 5, which is characterized in that the second signal processing unit is additionally operable to connect
The second data-signal that user equipment uploads is received, and is uplink signal by second data signal modulation, via the photoelectricity
It is sent after switching device and the wavelength-division multiplex cell processing.
7. a kind of intelligent gateway device, which is characterized in that including such as claim 1 to 6 any one of them signal processing apparatus.
8. a kind of signal processing method, which is characterized in that including：
Receive the optical signal for including two kinds of different downstream bands；
To it is described include that the optical informations of two kinds of different downstream bands carries out wavelength-division multiplex processing, obtain the first optical signal and the second light
Signal；
Opto-electronic conversion processing is carried out respectively to first optical signal and second optical signal, is correspondingly generated the first electric signal
With the second electric signal；
Signal processing is carried out to first electric signal and obtains radiofrequency signal, and signal processing is carried out to second electric signal
Obtain the first data-signal.
9. signal processing method according to claim 8, which is characterized in that described to carry out signal to first electric signal
Processing obtains radiofrequency signal and includes：Radio frequency conversion process is carried out to first electric signal and exports radiofrequency signal, according to preset
Offset rule compensates adjustment to the radiofrequency signal, wherein first electric signal includes cable TV signal.
10. signal processing method according to claim 9, which is characterized in that described to carry out letter to second electric signal
Number processing obtains the first data-signal and includes：The internet signal is converted into the first data letter according to preset communication protocol
Number, and extract internet data packet from first data-signal and sent by network interface, wherein second electric signal
Including internet signal.
11. signal processing method according to claim 10, which is characterized in that carrying out signal to second electric signal
After processing obtains the first data-signal, further include：The second data-signal that user equipment uploads is received, and described second is counted
It is believed that number being modulated to uplink signal, and sent after carrying out opto-electronic conversion and multiplex processing to the uplink signal.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109672493A (en) * | 2018-11-27 | 2019-04-23 | 北京市天元网络技术股份有限公司 | The method and apparatus for determining wave-division device path |
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