CN104348549A - Slave node circuit for plastic optical fiber communication - Google Patents
Slave node circuit for plastic optical fiber communication Download PDFInfo
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- CN104348549A CN104348549A CN201310358822.2A CN201310358822A CN104348549A CN 104348549 A CN104348549 A CN 104348549A CN 201310358822 A CN201310358822 A CN 201310358822A CN 104348549 A CN104348549 A CN 104348549A
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Abstract
The invention relates to a slave node circuit for plastic optical fiber communication. The slave node circuit is integrally integrated, and comprises a control unit, a coding and decoding unit, a serial interface unit and a feedback ring detection processing unit, wherein the coding and decoding unit is connected with the control unit and is used for coding digital signals into coding signals transmitted on a light path according to the programming, the serial interface unit is connected with the control unit and is used for providing at least one path of standard TTL-serial communication interface, and the feedback ring detection processing unit is connected with the control unit, is used for providing sending output feedback detection signals and is used for monitoring whether the sending output is in a long emitting state or not, the slave node circuit is provided with at least two groups of photoelectric receiving and sending interfaces, each group of photoelectric receiving interfaces is connected with the coding and decoding unit, and each group of photoelectric receiving and sending interfaces is connected with the driving output unit; the slave node circuit can be controlled to be in a double-group light path communication state or a single-group light path communication state. The slave node circuit can promote the plastic optical fiber communication application.
Description
Technical field
The present invention relates to the information acquisition system of shared cause, particularly relate to acquiring electric energy information system.
Background technology
Acquiring electric energy information system adopts master-slave communication network usually.This system, through the development in more than 20 years, mainly contains three kinds of means of communications at present: low-voltage power carrier communication, RS485 bus communication, short-distance wireless communication.But these three kinds of means of communications all exist more serious defect, low-voltage power carrier Realtime Capability of Communication stability is inadequate, RS485 bus communication electromagnetism interference and anti-lightning ability weak, short-distance wireless communication is subject to Changes in weather impact and building blocks.Obviously, these three kinds of technological means are all not competent in the requirement in the face of the highly reliable communication of intelligent grid real-time stability.Optical-fibre communications capacity is large, and anti-electromagnetic interference capability is strong, environmental protection, has therefore in recent years occurred plastic fiber communication to be used for that master-slave communication network is most typical represents the research of acquiring electric energy information systematic difference.Relative to silica fiber and glass optical fiber, plastic fiber core diameter large (1mm), light weight, softness, more damage-resistant (vibrate and bend), has excellent hot strength and durability.And do not need complicated fastening means.Very be applicable to acquiring electric energy information system for field feature.The master-slave communication systematic difference state of the art that current plastic fiber is being Typical Representative with acquiring electric energy information system is as follows: divide according to main and subordinate node connected mode and optic path direction, there are following two kinds of fundamental modes: 1) series model: main and subordinate node series model is divided into monochromatic light road series model and double light path series model, wherein, during the tandem composition system of monochromatic light road, optical path signal can only by counterclockwise or clockwise one direction transmission.Its shortcoming is that light path will be interrupted when Single Point of Faliure, systemic breakdown, and fault can not be located, and makes on-site maintenance difficulty; During double light path pattern composition system, optical path signal also can transmit in the direction of the clock by counterclockwise transmission.Can only block the continuation transmission in other certain directions of node light path during Single Point of Faliure, but not affect the reverse transmission of other node light paths, therefore Single Point of Faliure can not cause systemic breakdown.In conjunction with remote software Functional Design, fault location can be realized.But the photoelectric device that if this pattern adopts single core to receive single core to be sent out, optical fiber consumption cost is monocycle pattern increase about a times comparatively, and optical-electric module device also uses at double.2) paralleling model: be singlely again forwarded to host node as concentrator acquiring electric energy information system by independently Fiber connection to hub from node.The organization plan of the similar early stage acquiring electric energy information system acquisition pulse ammeter of the program.But hub volume is large, system configuration lacks flexibility, and in-site installation space is easily limited.In addition, in the treatment circuit after light signal is converted to the signal of telecommunication: design adopts discrete device to carry out driving and logical process usually.Obviously this type of design takies pcb space greatly, and anti-electromagnetic interference capability is weak, and design production link is many, and cost is high.The design treatment mode of discrete device is unfavorable for the global design of ammeter function i ntegration simultaneously.
Visible, in order to advance the practical application of plastic fiber in the master-slave network system communication being representative with acquiring electric energy information system, be necessary to make improvement and bring new ideas to related device and application in fact.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiency existing for above-mentioned prior art, and proposes a kind of plastic fiber communication with from node circuit, can promote that plastic fiber communication is applied.
The present invention is directed to above-mentioned technical problem and propose a kind of plastic fiber communication with from node circuit, should integrate from node circuit and form, it comprises: a control unit; One codec unit, is connected with this control unit, in order to being the code signal transmitted in light path according to programming by digital signal encoding; One serial interface unit, is connected with this control unit, in order to provide at least one road sign accurate TTL-serial communication interface; And a feedback loop check processing unit, being connected with this control unit, sending output feedack detection signal in order to provide, whether exporting for long emission state for monitoring to send; Wherein, at least two group optoelectronic transceiver interfaces should be provided with from node circuit, often organize photoelectricity and receive interface and be connected with this codec unit, often group photoelectricity is sent out interface and is connected with this driver output unit; Should can be controlled and be in two group light path communication state or single group light path communication state from node circuit.
Wherein, two groups of optoelectronic transceiver interfaces should be had from node circuit, these two groups of optoelectronic transceiver interfaces with pair to organize photoelectric conversion module and match and can support double light path loop systems; When signal sends, the signal this standard TTL-serial communication interface should can be sent to these two groups of optoelectronic transceiver interfaces from node circuit simultaneously export; When signal receives from optical fiber, in these two groups of optoelectronic transceiver interfaces, the photosignal of arbitrary group can export from TTL-serial communication interface; Further, when signal receives from optical fiber, in these two groups of optoelectronic transceiver interfaces, the photosignal of arbitrary group can export by the controlled optoelectronic transceiver interface from another group; Or, should from node circuit with pair to organize photoelectric conversion module and match and can support two separate single light path systems; Or, should from node circuit with singly organize photoelectric conversion module and match and can support a single light path system.
Wherein, should also comprise a driver output unit from node circuit, be connected with this codec unit, drive current when sending in order to provide signal, the transmission output current size of this driver output unit is by non-essential resistance programming Control.
Of the present invention from node circuit one application, the present invention proposes a kind of plastic fiber communication light path threeway controller, and it adopts two above-mentioned connecting and composing from node circuit is back-to-back; Wherein, one is in two group light path communication state from node circuit, and another is in single group light path communication state from node circuit.
Of the present invention from node circuit Another application, the present invention proposes a kind of plastic fiber communication light path four-way controller, and it adopts two above-mentioned connecting and composing from node circuit is back-to-back; Wherein, two are all in two group light path communication state from node circuit.
Of the present invention from node circuit Another application, the present invention proposes a kind of plastic fiber communication system, comprise a host node device and with this host node device by plastic fiber communication be connected at least one from node device, should comprise above-mentioned from node circuit from node device.
Wherein, remote command can should be received by two-way photoelectric conversion port from node device; Should can transfer light signal to by two path signal from node device for the response of remote command to send simultaneously; Should can without from node device process directly relaying each other from two groups of photoelectric conversion units of node device; Should can require to be configured to enable code communication mode according to host node from node device integrated circuit, thus make automatically there is codec functions from node device.
Wherein, also should comprise and this ammeter be connected by standard TTL-serial communication interface communication from node circuit from node device.
From node circuit Another application, the present invention proposes a kind of ammeter of the present invention, and it comprises above-mentioned from node circuit.
Of the present invention from another application of node circuit, the present invention proposes a kind of plastic fiber communication system, comprise a concentrator, at least one above-mentioned plastic fiber communication be connected with this concentrator communication light path threeway controller and at least one above-mentioned ammeter that is connected with each three ventilating controller communications; Wherein, this concentrator and light path three ventilating controller and between two light path three ventilating controller adopt each other twoly to be organized light path and is concatenated into ring, each light path three ventilating controller and coupled ammeter form a group, and the member in each group adopts monochromatic light road ring to be concatenated into ring.
Compared with prior art, plastic fiber communication of the present invention is with from node circuit, and by Integration Design, peripheral needs a small amount of device, can promote that plastic fiber communication is applied.
Accompanying drawing explanation
Fig. 1 is the structured flowchart that plastic fiber communication two-way photoelectricity of the present invention sends out interface.
Fig. 2 is the structured flowchart that plastic fiber communication two-way photoelectricity of the present invention receives interface.
Fig. 3 is the structured flowchart of plastic fiber communication host node circuit embodiments of the present invention.
Fig. 4 is the typical apply reference diagram of plastic fiber communication host node circuit of the present invention.
Fig. 5 is the structured flowchart of plastic fiber communication of the present invention from node circuit embodiment.
Fig. 6 is the typical apply reference diagram of plastic fiber communication of the present invention from node circuit.
The structured flowchart of Fig. 7 plastic fiber communication system one of the present invention embodiment.
Fig. 8 is the structured flowchart of light path three ventilating controller embodiment of the present invention.
Fig. 9 is the structured flowchart of ammeter embodiment of the present invention.
Figure 10 is the structured flowchart of plastic fiber communication system one embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, elaboration is further given to the present invention.
See Fig. 1 and Fig. 2, the present invention is when building plastic fiber communication system, it is no matter host node or from node, be provided with two-way optoelectronic transceiver interface, that is, each node, includes the transmission that two light-emitting diodes 111,112 carry out light signal, and includes the reception that two sensor devices 113,114 carry out light signal.
Implement one
The present invention proposes a kind of plastic fiber communication host node circuit 20, and see Fig. 3, it comprises and integrating: a control unit 201, and it comprises a 80c51 micro-processor kernel; A memory cell 202, it comprises 16K byte flash memory, 1/2K bytes Flash data storage, 1/2K byte SRAM and 256 byte ram spaces; A time-base circuit unit 203, in order to provide control unit clock reference and NRZ encoding and decoding clock signal; A codec unit 204, in order to being the code signal transmitted in light path according to programming by digital signal encoding; A driver output unit 205, drive current when sending in order to provide signal, drive current size is able to programme; A serial interface unit 206, in order to provide standard TTL mono-serial ports communication interface; And a feedback loop check processing unit 207, send output feedack detection signal in order to provide, for monitoring to send to export whether be in long emission state.This host node circuit 20 comprises following pin:
Visible, the functional characteristic of this host node circuit 20, roughly have (including, but are not limited to): photoelectricity driver element (i.e. driver output unit 205) sends the large I of output current by non-essential resistance programming Control, send semiconductor chip needs with the light meeting different brands; Both by the standard TTL communication serial ports that provides by user-defined protocol or transparent transmission mode Remote fiber communication, online programming can also be realized and upgrade innernal CPU control program; There is the internal control ring (i.e. feedback loop check processing unit 207) exporting monitoring, to forbid long generation of launching; Powering on can independent self-inspection; Automatically telecommunication path can be selected according to optical path states; There is provided inner encoding and decoding enable control pin; There is provided and send output enable signal enable control programming pin; External reset control pin is provided; Two group light path communication status signal instruction and failure alarm signal instruction are provided; Both can form with two groups of photoelectric conversion modules and support double light path loop systems or two separate single light path systems, and photoelectric conversion module support can also have been organized with list and form a single light path system; Opto-electronic conversion Received signal strength significant level is programmed for high level effectively or Low level effective.
A typical apply of this host node circuit 20, see Fig. 4, this typical apply roughly comprises: Main Processor Unit M; Host node circuit U 1; And photoelectric conversion module U2, U3, U4 and U5.Wherein, host node circuit U 1 pin Vcc, Gnd are power supply input pin, provide host node circuit U 1 working power.Host node circuit U 1 is connected by the TTL serial ports of standard with Main Processor Unit M, and host node circuit U 1, after the order receiving Main Processor Unit M, independently selects photoelectric conversion module U2 or U4 to give an order by the mode of transparent transmission.Host node circuit U 1 pin De is encoding and decoding enable signal input pin, represents and do not use inner codec functions when meeting high level (+5V), then the Signal transmissions un-encoded process in light path.Resistance R1 and electric capacity C1 is reset circuit, meets host node circuit U 1 pin/Reset; LED 1, LED2 are that light path 1 sends, Received signal strength instruction; LED 4, LED5 are that light path 2 sends, Received signal strength instruction; LED 3 is failure alarm signal instruction.Host node circuit U 1 pin Xin, the external crystal oscillator of Xout, provides internal timebase unit clock signal.Host node circuit U 1 pin Vcc_tx0 connects the input of opto-electronic conversion light emitting module U2 power supply, when sending, output+5V, pin Txout0 exports for filling with electric current, U2 emitting semiconductor drive current is provided, this size of current is according to emitting semiconductor saturation current, and can be limited by pin Res1 outer meeting resistance R2 size, resistance R2 resistance size is drawn divided by emitting semiconductor saturation current by the difference of pin Vcc_tx0 and emitting semiconductor saturation voltage drop.Pin Vcc_tx0, Ent0, Txout0 is in high-impedance state at ordinary times; During transmission, first pin Vcc_tx0, Ent0 opens output, and then pin Txout0 outputs signal.After transmission terminates, pin Vcc_tx0, Ent0, Txout0 return high-impedance state.Pin Ent0 sends the concrete requirement on devices programming that enable significant level can use according to U2.Host node circuit U 1 pin Rxin0 connects photoelectric conversion module U3 signal output pin, receives the signal from Optical Fiber Transmission; Pin Rxin0 inputs the tool requirement on devices programming that significant level can use according to U3.Host node circuit U 1 pin Vcc_tx1 connects the input of opto-electronic conversion light emitting module U4 power supply, when sending, output+5V, pin Txout1 exports for filling with electric current, U4 emitting semiconductor drive current is provided, this size of current is limited by pin Res2 outer meeting resistance R3 size according to emitting semiconductor saturation current, and resistance R3 resistance size is drawn divided by emitting semiconductor saturation current by the difference of pin Vcc_tx1 and emitting semiconductor saturation voltage drop.Pin Vcc_tx1, Ent1, Txout1 is in high-impedance state at ordinary times; During transmission, first pin Vcc_tx1, Ent1 opens output, and then pin Txout1 outputs signal.After transmission terminates, pin Vcc_tx1, Ent1, Txout1 return high-impedance state.Pin Ent1 sends the concrete requirement on devices programming that enable significant level can use according to U4.Host node circuit pin Rxin1 connects photoelectric conversion module U5 signal output pin, receives the signal from Optical Fiber Transmission; Rxin1 inputs the tool requirement on devices programming that significant level can use according to U5.
Compared with prior art, plastic fiber communication host node circuit 20 of the present invention is by design single circuit, this integrated circuit is used for the application of host node opto-electronic conversion post processing circuitry, realize communication link self-inspection and judgement, encoding and decoding, signal designation, automatically main controller is selected to send the descending path channels direction of order etc. under double light path series model, and these functions can by user's simple programming choice for use, its beneficial effect comprises: Integration Design, peripheral needs a small amount of device, both may be used for monochromatic light road master-slave system and also may be used for double light path master-slave system, can with Single-Input Single-Output electrooptical device with the use of also can with single core transmitting-receiving electrooptical device with the use of.
It should be noted that, in the present embodiment, driver output unit 205 is integrated in interior by this host node circuit 20, in other embodiments, and also can by external for driver output unit 205.
Implement two
The present invention proposes a kind of plastic fiber communication with from node circuit 30, and see Fig. 5, it comprises and integrating: control unit 301, in order to completion logic control treatment; A codec unit 302, in order to being the code signal transmitted in light path according to programming by digital signal encoding; A driver output unit 303, drive current when sending in order to provide signal, drive current size is able to programme; A serial interface unit 304, in order to provide standard TTL serial communication interface; And a feedback loop check processing unit 305, sending output feedack detection signal in order to provide, whether exporting for long emission state for monitoring to send.Following pin should be comprised from node circuit 30:
Visible, should from the functional characteristic of node circuit 30, roughly have and (comprise, but be not limited to): control unit, codec unit and driver element etc. are integrated, photoelectricity driver element sends output current size and sends semiconductor chip needs by non-essential resistance programming Control with the light meeting different brands; At least one road sign accurate TTL communication serial ports, at least two group optoelectronic transceiver signaling interfaces are provided; Inner integrated NRZ codec functions unit, can to forbid or enable in external control; There is the inner detection control ring of long transmitting, wipe out long fault of launching and occur; Double beam system can be formed with two groups of photoelectric conversion modules, at this moment: when signal sends, TTL communication rs 232 serial interface signal can be sent to two groups of optoelectronic transceiver interfaces simultaneously export, and, when signal receives from optical fiber, in two groups of optoelectronic transceiver signals, arbitrary group of photosignal can export from TTL communication serial ports, and, when signal receives from optical fiber, in two groups of optoelectronic transceiver signals, arbitrary group of photosignal is all able to programme from another group electro-optical signal output; Photoelectric conversion module can be organized with list and form single light path system, at this moment, when signal sends, TTL communication rs 232 serial interface signal can be sent to designated groups optoelectronic transceiver signaling interface and export, and, when signal receives from optical fiber, the able to programme transmission with electro-optic conversion signal relaying immediately of designated groups opto-electronic conversion Received signal strength exports; In addition, TTL communication serial ports receiving and transmitting signal also can be provided to indicate; Opto-electronic conversion receives input signal significant level and is programmed for high level effectively or Low level effective; Two-way can be provided to send enable signal.Should from node circuit 30 also can with outside self-powered circuit or codec functions circuit with the use of.
Should from a typical apply of node circuit 30, see Fig. 6, this typical apply roughly comprises: from processing unit S; From node circuit U6; And photoelectric conversion module U7, U8, U9 and U10.Wherein, be power supply input pin from node circuit U1 pin Vcc, Gnd, provide from node circuit U6 working power.Being connected by the TTL serial ports of standard with from processing unit S from node circuit U6, from node circuit U6 receiving after the order of processing unit S, returning response command by photoelectric conversion module U7, U9 to network host node by the mode of transparent transmission simultaneously.Be encoding and decoding enable signal input pin from node circuit U1 pin De, represent when meeting high level (+5V) and do not use inner codec functions, then the Signal transmissions un-encoded process in light path.LED 6 is for send signal designation by U7; LED 7 is for receiving network signal instruction by U8; LED 8 is for send signal designation by U9; LED 9 is for receiving network signal instruction by U10; When not having communication signal, coherent signal indicator light extinguishes.From node circuit U6 pin Txled0, Rxled0, Txled1, Rxled1 output low level is effective.Opto-electronic conversion light emitting module U7 power supply input pin is connect from node circuit U6 pin Vcc_tx0, when sending, output+5V, pin Txout0 exports for filling with electric current, U7 emitting semiconductor drive current is provided, this size of current is limited by pin Res1 outer meeting resistance R4 size according to emitting semiconductor saturation current, and resistance R4 resistance size is drawn divided by emitting semiconductor saturation current by the difference of Vcc_tx0 and emitting semiconductor saturation voltage drop.Pin Vcc_tx0, Ent0, Txout0 is in high-impedance state at ordinary times; During transmission, first pin Vcc_tx0, Ent0 opens output, and then pin Txout0 outputs signal.After transmission terminates, pin Vcc_tx0, Ent0, Txout0 return high-impedance state.Pin Ent0 sends the concrete requirement on devices programming that enable significant level can use according to U7.Connect photoelectric conversion module U8 signal output pin from node circuit U6 pin Rxin0, receive the signal from Optical Fiber Transmission; Pin Rxin0 inputs the tool requirement on devices programming that significant level can use according to U8.The input of opto-electronic conversion light emitting module U9 power supply is connect from node circuit U6 pin Vcc_tx1, when sending, output+5V, pin Txout1 exports for filling with electric current, U9 emitting semiconductor drive current is provided, this size of current is limited by pin Res2 outer meeting resistance R5 size according to emitting semiconductor saturation current, and resistance R5 resistance size is drawn divided by emitting semiconductor saturation current by the difference of pin Vcc_tx1 and emitting semiconductor saturation voltage drop.Pin Vcc_tx1, Ent1, Txout1 is in high-impedance state at ordinary times; During transmission, first pin Vcc_tx1, Ent1 opens output, and then pin Txout1 outputs signal.After transmission terminates, pin Vcc_tx1, Ent1, Txout1 return high-impedance state.Pin Ent1 sends the concrete requirement on devices programming that enable significant level can use according to U9.Connect photoelectric conversion module U10 signal output pin from node circuit U6 pin Rxin1, receive the signal from Optical Fiber Transmission; Pin Rxin1 inputs the tool requirement on devices programming that significant level can use according to U10.From node circuit pin Chs be U6 mode of operation select signal programming input pin.When from design of node being two right/group (one receive one be a pair/group) optical-electric module transmitting-receiving, pin Chs connects low level; Use U6 binary channels (i.e. Txout0, Rxin0, Ent0; Txout1, Rxin1, Ent1 group pin) carry out Optical Fiber Transmission; When from design of node being a pair/group (receipts one are a pair/group) optical-electric module transmitting-receiving, pin Chs connects high level, uses U6 passage 0 (i.e. Txout0, Rxin0, Ent0 group pin) to carry out Optical Fiber Transmission; In such a mode, pin Vcc_tx1, Txout1, Ent1 are unsettled, and pin Rxin1 connects low level.
Compared with prior art, of the present invention from node circuit 30 by design single integrated circuit, this integrated circuit is used for apply from node opto-electronic conversion post processing circuitry, automatic relay communication function, transparent transmission function, codec functions under connection in series-parallel pattern are provided, signal designation function etc., and these functions completely can by user's simple programming choice for use, its beneficial effect comprises: Integration Design, peripheral needs a small amount of device, both may be used for monochromatic light road master-slave system and also may be used for double light path master-slave system; Can with Single-Input Single-Output electrooptical device with the use of also can with single core transmitting-receiving electrooptical device with the use of.
It should be noted that, in the present embodiment, driver output unit 303 should be integrated in interior from node circuit 30, in other embodiments, also can by external for driver output unit 303.
Implement three
The present invention proposes a kind of plastic fiber communication system 40, it is an acquiring electric energy information system, see Fig. 7, this system 40 roughly comprises: a host node device 401, wherein, concentrator 4011 is equivalent to the Main Processor Unit M in Fig. 4, host node module 4012 be equivalent in Fig. 4 except the part outside Main Processor Unit M; Multiple from node device 402, wherein, ammeter 4021 be equivalent in Fig. 6 from processing unit S, from node module 4022 be equivalent to Fig. 6 except from the part outside processing unit S.Wherein, being connected to host node device 401 and representing light path from the lines of the band arrow between node device 402, when receiving the optical-electric module that single core sends out when adopting conventional single core, representing that two optical fiber form dicyclos and connect; During the single core transmitting-receiving optical-electric module realized when adopting the encapsulating structure of the embodiment of the present invention one, represent that forming dicyclo by an optical fiber connects.The operation principle of this acquiring electric energy information system 40, is described in detail as follows:
1, when after system electrification, host node module does not need concentrator order can start to carry out system communications link self-inspection, when finding the arbitrary fault of system double loop or all depositing after a failure, providing instruction of reporting to the police.
If system is normal after 2 self-inspections, then when concentrator sends signal to ammeter, host node module automatically two group in light path ring carries out data transparent transmission with selecting one; If find after self-inspection that one of them loop exists fault, then avoid when concentrator sends signal selecting fault ring; If two groups of light path rings all faults, then when concentrator sends signal to ammeter, host node module opens two group light path ring access port Tx0, Tx1 sends simultaneously, and monitor dicyclo receiving port Rx0, the signal of Rx1, after having a wherein ring Received signal strength detected, host node module receives this signal and forwards to concentrator.In other words, under normal circumstances, the command response sent from port Tx0 returns from port Rx0 and is received loop; The command response sent from port Tx1 returns from port Rx1 and is received; If dicyclo fault, then the command response that front port Tx0 in fault point sends returns from port Rx1; The command response that fault point rear port Tx1 sends returns from port Rx0.Thus, realize by fault ammeter get rid of outside system communication, and other ammeters and concentrator communication unaffected.
3, no matter which receives signal from from node module, also forward to next stage when sending this signal to ammeter simultaneously and (now design as Fig. 4 from node module, pin Chs, Rep all connect low level), under normal circumstances, concentrator host node can detect the inverse signal self sent.And after this ammeter also returns concentrator host node along this loop from the response command of node.If certain node failure can not forward to next stage in Tx0 ring, then concentrator host node cannot detect the inverse signal (host node sends self) of this loop, can judge that this loop has fault; On the other hand, the Tx0 whole node ammeters sent in loop before malfunctioning node can both receive the order that concentrator is sent, if there is ammeter to respond the order of concentrator, because the return information of ammeter can be sent to two-way module from node, then response command borrows Tx1 hoop concentrator to return.
Visible, the key property of this system 40 has: adopt from node circuit 30 (should comprise from node circuit 30 and the some table that is connected from node circuit 30 communication with this from node device) from node device, further, host node device can adopt host node circuit 20; Remote command can be received by two-way photoelectric conversion port from node device; Light signal can be transferred to by two path signal from node device for the response of remote command to send simultaneously; Can without from node device process directly relaying each other from two groups of photoelectric conversion units of node device, namely wherein the photosignal message number electro-optical signal mouth can organizing B from another of one group of A sends; And the photosignal message number organizing B also can send from the electro-optical signal mouth of group A, thus form the automatic relay of long-range light path communication; Can require to be configured to enable code communication mode according to host node device from node device circuit, thus make automatically there is codec functions from node device.
Compared with prior art, plastic fiber communication system 40 of the present invention, by being configured to ammeter end from node circuit 30, can realize the master-slave communication system of plastic fiber easily, efficiently.
Implement four
The present invention proposes a kind of plastic fiber communication light path threeway controller 50, and see Fig. 8, it roughly comprises: two from node circuit U11, U12; The first light path be made up of photoelectric conversion module U13, U14; The second light path be made up of photoelectric conversion module U15, U16; The 3rd light path be made up of photoelectric conversion module U17, U18.Its operation principle roughly comprises: the signal that photoelectric conversion module U14 receives sends to photoelectric conversion module U15, U17 simultaneously; The signal that photoelectric conversion module U16 receives sends to photoelectric conversion module U13, U17 simultaneously; The signal that photoelectric conversion module U18 receives sends to U13, U15 simultaneously.
Visible, the key property of this light path three ventilating controller 50 has: adopt two and connect and compose from node circuit 30 is back-to-back; Wherein, one is in two group light path communication state from node circuit 30, another is in single group light path communication state from node circuit 30, the signal sent from node circuit 30 being programmed for the communication of single group light path returns rear automatic disappearance by loop, no longer to being programmed for sending from node circuit 30 of two group light path communication.It should be noted that, two also can form a plastic fiber communication light path four-way controller from the back-to-back connection of node circuit 30, and at this moment, two are all in two group light path communication state from node circuit 30.
Compared with prior art, plastic fiber communication light path threeway controller 50 of the present invention builds from node circuit by adopting, and can realize the communication system of plastic fiber easily, efficiently.
Implement five
The present invention proposes a kind of ammeter 60, it has aforesaid from node circuit 30, see Fig. 9, it roughly comprises: ammeter Main Processor Unit X and the communication module formed from node circuit U19 be connected with this ammeter Main Processor Unit X, wherein, work in monotype from node circuit U19, namely only use a pair/group optoelectronic transceiver transducer.Pin Chs pin connects high level, and pin Rep pin connects low level.The signal that pin Rxin0 receives is sent to ammeter Main Processor Unit, and this signal sends next ammeter 60 from pin Txout0 simultaneously.
Compared with prior art, ammeter 60 of the present invention, by adopting from node circuit 30, can realize the plastic fiber communication of ammeter easily, efficiently.
Implement six
The present invention proposes another kind of plastic fiber communication system 70, as in the above embodiments three, it is also an acquiring electric energy information system, see Figure 10, this system 70 roughly comprises: concentrator JZQ, the some light paths three ventilating controller STKZQ (adopting the light path threeway controller architecture of previous embodiment five) be connected with concentrator JZQ and the corresponding multiple ammeter DB (adopting the monotype ammeter structure of embodiment six) be articulated on light path three ventilating controller STKZQ.This system 70 is a kind of typical principal and subordinate's optical communication mixture of networks systems.The feature of this mixed mode is: major loop (between concentrator JZQ and three ventilating controller STKZQ) is designed to double light path ring structure; Minor loop (between light path three ventilating controller STKZQ and ammeter DB) is monochromatic light road ring mode.
Visible, the key property of this system 70 has: adopt aforesaid light path three ventilating controller 50 by host node (concentrator) and have under its command from node (ammeter) point team management, adopting the ring series connection of monochromatic light road in group from node; Concentrator two organized light path ring and is connected with adopting between light path three ventilating controller and light path three ventilating controller.
Compared with prior art, the beneficial effect of plastic fiber communication system 70 of the present invention comprises: 1) owing to adopting the communication of major loop light path, when certain ammeter node failure, the only communication of impact local ammeter, whole system can not be caused to paralyse, fault is confined in the scope that can control and determine.2) the ammeter optical communication electrooptical device technology that single core can be adopted to receive single core send out, has saved cost.3) threeway controller housing can design by single-phase electric meter shell size, is conveniently arranged on nearby in ammeter box, simultaneously can be less demanding to ammeter electrooptical device transmission range.
Foregoing is only preferred embodiment of the present invention; not for limiting embodiment of the present invention; those of ordinary skill in the art are according to central scope of the present invention and spirit; can carry out corresponding flexible or amendment very easily, therefore protection scope of the present invention should be as the criterion with the protection range required by claims.
Claims (10)
1. plastic fiber communication is with from a node circuit, it is characterized in that, should integrate from node circuit and form, it comprises: a control unit; One codec unit, is connected with this control unit, in order to being the code signal transmitted in light path according to programming by digital signal encoding; One serial interface unit, is connected with this control unit, in order to provide at least one road sign accurate TTL-serial communication interface; And a feedback loop check processing unit, being connected with this control unit, sending output feedack detection signal in order to provide, whether exporting for long emission state for monitoring to send; Wherein, at least two group optoelectronic transceiver interfaces should be provided with from node circuit, often organize photoelectricity and receive interface and be connected with this codec unit, often group photoelectricity is sent out interface and is connected with this driver output unit; Should can be controlled and be in two group light path communication state or single group light path communication state from node circuit, this circuit can adapt to the effective incoming level of different photoelectric conversion signal in addition.
2. according to plastic fiber communication according to claim 1 with from node circuit, it is characterized in that, two groups of optoelectronic transceiver interfaces should be had from node circuit, these two groups of optoelectronic transceiver interfaces with pair to organize photoelectric conversion module and match and can support double light path loop systems; When signal sends, the signal this standard TTL-serial communication interface should can be sent to these two groups of optoelectronic transceiver interfaces from node circuit simultaneously export; When signal receives from optical fiber, in these two groups of optoelectronic transceiver interfaces, the photosignal of arbitrary group can export from TTL-serial communication interface; Further, when signal receives from optical fiber, in these two groups of optoelectronic transceiver interfaces, the photosignal of arbitrary group can export by the controlled optoelectronic transceiver interface from another group; Or, should from node circuit with pair to organize photoelectric conversion module and match and can support two separate single light path systems; Or, should from node circuit with singly organize photoelectric conversion module and match and can support a single light path system.
3. according to plastic fiber communication according to claim 1 with from node circuit, it is characterized in that, a driver output unit should be also comprised from node circuit, be connected with this codec unit, drive current when sending in order to provide signal, the transmission output current size of this driver output unit is by non-essential resistance programming Control.
4. a plastic fiber communication light path threeway controller, is characterized in that, adopts two plastic fiber communication according to claim 1 to connect and compose with from node circuit is back-to-back; Wherein, one is in two group light path communication state from node circuit, and another is in single group light path communication state from node circuit.
5. a plastic fiber communication light path four-way controller, is characterized in that, adopts two plastic fiber communication according to claim 1 to connect and compose with from node circuit is back-to-back; Wherein, two are all in two group light path communication state from node circuit.
6. a plastic fiber communication system, comprise a host node device and with this host node device by plastic fiber communication be connected at least one from node device, it is characterized in that, plastic fiber communication according to claim 1 should be comprised with from node circuit from node device.
7. according to plastic fiber communication system according to claim 6, it is characterized in that, should can receive remote command by two-way photoelectric conversion port from node device; Should can transfer light signal to by two path signal from node device for the response of remote command to send simultaneously; Should can without from node device process directly relaying each other from two groups of photoelectric conversion units of node device; Should can require to be configured to enable code communication mode according to host node from node device integrated circuit, thus make automatically there is codec functions from node device.
8. according to plastic fiber communication system according to claim 6, it is characterized in that, also should comprise and this ammeter be connected by standard TTL-serial communication interface communication from node circuit from node device.
9. an ammeter, is characterized in that, comprises plastic fiber communication according to claim 1 with from node circuit.
10. a plastic fiber communication system, comprise a concentrator, it is characterized in that, this system also comprises the plastic fiber communication at least one as claimed in claim 4 that is connected with this concentrator communication light path threeway controller and the ammeter at least one as claimed in claim 9 that is connected with each three ventilating controller communications; Wherein, this concentrator and light path three ventilating controller and between two light path three ventilating controller adopt each other twoly to be organized light path and is concatenated into ring, each light path three ventilating controller and coupled ammeter form a group, and the member in each group adopts monochromatic light road ring to be concatenated into ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310358822.2A CN104348549A (en) | 2013-08-08 | 2013-08-08 | Slave node circuit for plastic optical fiber communication |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310358822.2A CN104348549A (en) | 2013-08-08 | 2013-08-08 | Slave node circuit for plastic optical fiber communication |
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| CN104348549A true CN104348549A (en) | 2015-02-11 |
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| CN201310358822.2A Pending CN104348549A (en) | 2013-08-08 | 2013-08-08 | Slave node circuit for plastic optical fiber communication |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1689054A (en) * | 2002-08-30 | 2005-10-26 | 梁宽淑 | Fiber optic security system and control method thereof |
| CN101388730A (en) * | 2008-10-22 | 2009-03-18 | 南京航空航天大学 | Power unit for single optical fiber communication and controlling method thereof |
| CN101820558A (en) * | 2010-04-23 | 2010-09-01 | 烽火通信科技股份有限公司 | Method for detecting long luminance ONU in passive optical network |
| CN102164006A (en) * | 2011-03-15 | 2011-08-24 | 成都新易盛通信技术有限公司 | Dual-channel compact small from-factor pluggable circuit |
| CN202019359U (en) * | 2011-03-15 | 2011-10-26 | 成都新易盛通信技术有限公司 | Two-channel compact small pluggable optical module circuit |
| CN202334531U (en) * | 2011-12-05 | 2012-07-11 | 珠海市康定电子股份有限公司 | Plastic silica fiber converter and electric energy meter remote reading system |
| CN202383830U (en) * | 2011-12-30 | 2012-08-15 | 珠海市康定电子股份有限公司 | Electric meter-reading module based on plastic optical fiber (POF) self-healing double loop network and electric meter-reading system |
| CN202565277U (en) * | 2012-05-17 | 2012-11-28 | 吴琦 | Plastic optical fiber exchanger circuit |
| CN103209028A (en) * | 2013-04-15 | 2013-07-17 | 浙江工业大学 | Intelligent optical network unit (ONU) optical transceiver module capable of automatically monitoring light-emitting faults |
| CN103236890A (en) * | 2013-04-15 | 2013-08-07 | 浙江工业大学 | ONU (optical network unit) intelligent optical transceiver module capable of automatically closing long-emission laser device |
-
2013
- 2013-08-08 CN CN201310358822.2A patent/CN104348549A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1689054A (en) * | 2002-08-30 | 2005-10-26 | 梁宽淑 | Fiber optic security system and control method thereof |
| CN101388730A (en) * | 2008-10-22 | 2009-03-18 | 南京航空航天大学 | Power unit for single optical fiber communication and controlling method thereof |
| CN101820558A (en) * | 2010-04-23 | 2010-09-01 | 烽火通信科技股份有限公司 | Method for detecting long luminance ONU in passive optical network |
| CN102164006A (en) * | 2011-03-15 | 2011-08-24 | 成都新易盛通信技术有限公司 | Dual-channel compact small from-factor pluggable circuit |
| CN202019359U (en) * | 2011-03-15 | 2011-10-26 | 成都新易盛通信技术有限公司 | Two-channel compact small pluggable optical module circuit |
| CN202334531U (en) * | 2011-12-05 | 2012-07-11 | 珠海市康定电子股份有限公司 | Plastic silica fiber converter and electric energy meter remote reading system |
| CN202383830U (en) * | 2011-12-30 | 2012-08-15 | 珠海市康定电子股份有限公司 | Electric meter-reading module based on plastic optical fiber (POF) self-healing double loop network and electric meter-reading system |
| CN202565277U (en) * | 2012-05-17 | 2012-11-28 | 吴琦 | Plastic optical fiber exchanger circuit |
| CN103209028A (en) * | 2013-04-15 | 2013-07-17 | 浙江工业大学 | Intelligent optical network unit (ONU) optical transceiver module capable of automatically monitoring light-emitting faults |
| CN103236890A (en) * | 2013-04-15 | 2013-08-07 | 浙江工业大学 | ONU (optical network unit) intelligent optical transceiver module capable of automatically closing long-emission laser device |
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Effective date of registration: 20151223 Address after: 518000, 2, building 808, Minle Industrial Zone, people's street, Longhua District, Guangdong, Shenzhen Applicant after: YANG ZEQING Address before: 518100 Guangdong city of Shenzhen province Longhua new city streets fortress Lake Villa 3-306 Applicant before: Yang Zeqing |
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