CN109769155A - A kind of control method of fiber port - Google Patents
A kind of control method of fiber port Download PDFInfo
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- CN109769155A CN109769155A CN201910025662.7A CN201910025662A CN109769155A CN 109769155 A CN109769155 A CN 109769155A CN 201910025662 A CN201910025662 A CN 201910025662A CN 109769155 A CN109769155 A CN 109769155A
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Abstract
The invention discloses a kind of control methods of fiber port, the following steps are included: microprocessor controls N number of fiber port using N circuit-switched data gating signal line, all the way EID control bus and a paths of LEDs control bus management；The corresponding fiber port of data strobe signal line all the way；Microprocessor controls the on-off of N circuit-switched data gating signal line by time-sharing format, data strobe signal line all the way is only gated in each time slot, it realizes the access for corresponding to fiber port to the circuit-switched data gating signal line, completes the access to N number of fiber port in a polling cycle by multiple time-sharing operations；When data strobe signal line is strobe state all the way, EID device corresponding to the fiber port and LED carry out relevant operation respectively for EID control bus and LED control bus.The present invention passes through the EID device and LED of EID control bus and the multiple ports of LED control bus Time-sharing control, saves great amount of hardware resources, reduces power consumption and cost, promotes the speed of service.
Description
Technical field
The present invention relates to optical communication fields, and in particular to a kind of control method of fiber port.
Background technique
Currently, distributing connection equipment mainly uses fibre distribution frame (ODF) or optical cross box (OCC)；Fibre distribution frame or light
Handing over the most important component of case is exactly fiber adapter array；Wherein, fibre distribution frame or optical cross box are divided into the sub- frame of multiple wirings,
Each sub- frame of wiring is made of multiple distribution boards, and the fiber adapter of more than ten sequentially number arrangement is equipped in each distribution board.
To carry out wiring management, it is equipped with port-mark recording sheet in fibre distribution frame or optical cross box, for recording and identifying fiber adapters
The fibre core serial number or transmission road sequence information of the connected optical fiber of device；It is inserted on the tail optical fiber of the fiber active linker of fiber adapter often
Upper flag form label is often pasted, record has the fibre core serial number or transmission for identifying this fiber active linker connection optical fiber on flag form label
Road sequence information.Conventional optical fiber distributing management is exactly to identify and manage respectively the fibre on fiber adapter and fiber active linker
Core serial number or transmission road sequence information, thus scheduling and maintenance management of the guidance to optical fiber distributing；But due to FTTH (Fiber-To-
The-Home, fiber to the home) pulling is built, ODN (Optical Distribution Network, optical distribution network) welcomes outburst
Formula increases；Since FTTH mainly uses PON (Passive Optical Network, passive optical network) technology, it is by one
OLT (Optical Line Terminal, optical line terminal) branch gives tens of a ONU (Optical Network up to a hundred
Unit, optical network unit), this allow for ODN net user terminal produce magnanimity fibre circuit need to carry out wiring scheduling and
Maintenance management, above-mentioned optical fiber distributing Managed Solution are no longer applicable in current efficient, precisely requirement.
To solve the above problems, usually to optical fiber distributing in the way of EID electronic label technology and electronics automatic collection
It is managed, to prevent the issuable mistake of labor management, and network operation is instructed using computer networking technology,
So as to highlight out the port operated in thickly dotted fiber optic distribution frame adapter arrays rapidly, with
Labor intensity is reduced, specific as follows:
One wiring ports indicator is installed on the sub- frame of each wiring of optical fiber wiring equipment, shows that optical fiber to be operated is suitable
The number of distribution board where orchestration and fiber adapter number；Only one wiring ports indicates in an optical fiber wiring equipment
Device and execute-in-place computer interconnect, and for main wiring ports indicator, remaining is from wiring ports indicator, with main wiring end
The private port connection of mouth indicator is interconnected with bus mode, is managed by main wiring port indicator；The main wiring
EID (Electronic Identity, the electronics body of its place optical fiber wiring equipment identity of characterization are installed in the indicator of port
Part mark) label, as host apparatus identity information label.
Since the fiber port of fibre distribution frame or optical cross box is excessive, to EID label in place and wiring ports indicator
Control is excessively complicated, to solve the above-mentioned problems, currently, being controlled in service board using MCU, although this kind of scheme interface
Mode is simple, but needs that MCU unit is added in each service board, further relates to solely exploitation and burning program, not only its ESD is anti-
Shield standard (electrostatic protection standard) is difficult to reach requirement of the operator for outdoor optical distribution plant, and the upgrade maintenance in later period
High expensive.
Summary of the invention
The technical problem to be solved by the present invention is to existing solution optical fiber distributing scheduling and the excessive scheme of control line is managed,
It is not only to increase cost input, but also ESD protection standard is difficult to reach requirement by using MCU control mode in service board,
The problem of upgrade maintenance high expensive.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that the control for providing a kind of fiber port is real
Existing method, the following steps are included:
Microprocessor utilizes N circuit-switched data gating signal line, all the way EID control bus and a paths of LEDs control bus management control
Make N number of fiber port；The corresponding fiber port of data strobe signal line all the way；
Microprocessor controls the on-off of N circuit-switched data gating signal line by time-sharing format, and one is only gated in each time slot
Circuit-switched data gating signal line realizes the access for corresponding to fiber port to the circuit-switched data gating signal line, passes through multiple time-sharing operations
The access to N number of fiber port is completed in a polling cycle；
When data strobe signal line is strobe state all the way, EID control bus and LED control bus are respectively to the optical fiber
The corresponding EID device in port and LED carry out relevant operation.
In the above-mentioned methods, N circuit-switched data gating signal line using microprocessor, decoder and N number of is correspondingly connected with
NMOS tube or the circuit connection of NPN triode are realized；
Microprocessor connects decoder input terminal by the road M control line, and decoder exports N circuit-switched data gating signal line, often
Circuit-switched data gating signal line is correspondingly connected with a NMOS tube or NPN triode, controls EID device by NMOS tube or NPN triode
The gating or cut-off of part and LED cathode and GND；Wherein, 2M≥N。
In the above-mentioned methods, when optical fibre management system includes multiple intelligent blocks, microprocessor is utilized respectively the road N
Data strobe signal line, all the way EID control bus and the N number of light of each intelligent block of paths of LEDs control bus management control
Fine port.
In the above-mentioned methods, microprocessor is capable of the maximum quantity of concurrent management intelligence block by the practical core of optical cross box
Several and microprocessor internal resource determines.
In the above-mentioned methods, EID device corresponding to the fiber port and LED carry out relevant operation and include:
Plug state detection is carried out to EID device, reads and writes registration code operation to specified EID device；
LED is lighted or is extinguished, the operation of quick flashing or slow flash.
In the above-mentioned methods, it completes to include N+1 time slot to a polling cycle of the access of N number of fiber port；
Top n time slot is polled N number of pair of EID device, and carries out relevant operation to LED, specifically:
The plug state of a corresponding fiber port EID device is detected in each time slot, and is operated according to plug state
The LED of corresponding ports is lighted or is extinguished；
In the last one time slot, registration code operation is read and write to specified EID device according to order.
In the above-mentioned methods, in a polling cycle, the last one time slot is greater than top n time slot.
In the above-mentioned methods, it completes to read and write specified EID device registration code behaviour when no in the last one time slot
When making, next polling cycle continues for carrying out reading and writing specified EID device registration code operation, and completes to finger
Determine the next cycle that EID device reads and writes after registration code operation and restores normal poll.
In the above-mentioned methods, before each polling cycle starts to be polled N number of pair of EID device, increase a reset
Time slot, for the charging waiting time to EID device.
The present invention, original creation by microprocessor plus in a manner of logical combination device, providing a kind of novel circuit topology
Method set up the reading aspect of matrix form, using the control mode of common cathode, respectively with the anode of LED line, monobus
The various states of positive Time-sharing control LED and monobus, can a plurality of LED control line of parallel control and 6 monobus signals, can be with
Great amount of hardware resources is saved, has huge advantage in power consumption and cost control；And microprocessor is compared on timing management
MCU control mode is more fast, and using parallel processing manner, the speed of service has very big promotion compared to MCU control mode；In addition,
In later maintenance upgrading, it is only necessary to relay management unit is replaced, does not need to be related to the replacement of a large number of services unit, it will not be to fortune
The intelligentized updating of battalion quotient is made troubles, and does not need to stop optical fiber transmission services in escalation process.
Detailed description of the invention
Fig. 1 is a kind of circuit topological structure schematic diagram of the control method of fiber port provided by the invention；
Fig. 2 is EID device reset answer timing diagram in the present invention；
Fig. 3 is to be realized by the composite module of 238 decoders and electronic switch to 13 EID chips and 13 in the present invention
The circuit diagram of LED light addressing；
Fig. 4 is service board internal logic control schematic diagram in the present invention
Specific embodiment
The present invention provides a kind of novel circuit topological structure realizing intelligent optical fiber wiring system and communicating to control node, solutions
It has determined when controlling EID label in place and wiring ports indicator, control line is excessive, connector core number is caused excessively to become larger
The problem of；Meanwhile the cathode of matched port led and single wire bus device uses time-division multiplexing method, saves logical device
Control pin, reach the normal operating to monobus and go out any combination to the bright sudden strain of a muscle of port led, optimization system function
Consumption and cost have the advantage for realizing that logic circuit building method is simple, communication stability is high, are suitable for large-scale promotion.Below
The present invention is described in detail in conjunction with Figure of description and specific embodiment.
As shown in Figure 1, relay management unit is communicated with master control administrative unit by 485, relay management unit passes through
RJ45 connector and microprocessor communication, a kind of control method of fiber port provided by the invention, comprising the following steps:
Microprocessor (can be FPGA, Field-Programmable Gate Array, field programmable gate array)
N number of fiber port is controlled using N circuit-switched data gating signal line, all the way EID control bus and a paths of LEDs control bus management；One
Circuit-switched data gating signal line corresponds to a fiber port；
Microprocessor controls the on-off of N circuit-switched data gating signal line by time-sharing format, and one is only gated in each time slot
Circuit-switched data gating signal line realizes the access for corresponding to fiber port to the circuit-switched data gating signal line, passes through multiple time-sharing operations
The access to N number of fiber port is completed in one cycle；
When data strobe signal line is strobe state all the way, EID control bus and LED control bus are respectively to the optical fiber
The corresponding EID device in port and LED carry out relevant operation；I.e. EID control bus and LED control bus use in one cycle
Time-multiplexed mode realizes that the relevant operation to N number of EID device and N number of LED, relevant operation here include to EID device
It carries out plug state detection, read and write registration code operation to specified EID device；And LED is lighted or is extinguished, fastly
It dodges or slow flash operates.
When optical fibre management system includes multiple intelligent blocks, microprocessor is utilized respectively N circuit-switched data gating signal
Line, all the way EID control bus and the N number of fiber port of each intelligent block of paths of LEDs control bus management control；Multiple intelligence
It is mutually indepedent between energy block, it does not interfere with each other.
In the present invention, microprocessor is capable of the maximum quantity of concurrent management intelligence block by the practical core number of optical cross box
And depending on microprocessor internal resource, under normal circumstances, the quantity of intelligent block is 6；And each intelligent block
Under may descend to hang 13 LED and 13 EID devices, i.e., have 13 fiber ports under each intelligent block.
Under normal circumstances, it completes to include N+1 time slot to a polling cycle of the access of N number of fiber port；When top n
Gap is polled N number of pair of EID device, and carries out relevant operation to LED, specifically:
The plug state of a corresponding fiber port EID device is detected in each time slot, and is operated according to plug state
The LED of corresponding ports is lighted or is extinguished；
In the last one time slot, registration code operation is read and write to specified EID device according to order.
In order to there is time enough to complete to read and write specified EID device registration code operation, in the present invention, finally
One time slot is greater than top n time slot；If reading and writing note to specified EID device still without completion in the last one time slot
Volume code operation, next next polling cycle continue for carrying out reading and writing specified EID device registration code operation,
In the next cycle for completing specified EID device to be read and write after registration code operates just restore normal poll.
Since the time that single wire bus device (EID device) connects cathode is too short, lead to be unable to normal reset response, therefore
Before poll, increase a reset time slot, increases detection single wire bus device or chip (by taking DS2431 chip as an example) reset answer
It is the preceding charging waiting time to chip, too of short duration to reduce power-on time, cause repeating query operation EID chip that can not work
Abnormal conditions, actual effect proof have good effect, especially under the mode that can not improve bus voltage, extension is powered on
Waiting time guarantees in the short time, can chip work normally more significant improvement to monobus device
When part repeating query, related device can be accurately read.
Be illustrated for completing to the access of 13 fiber ports below, polling cycle be 20ms (or 40ms, this
A needs are changed parameter in microprocessor program and are achieved), including 15 time slots, preceding 14 time slots are every time slot 1ms, most
The latter time slot is 6ms；
First time slot is to reset time slot, increases the charging waiting time (as shown in Figure 2) of EID device；
Successively 13 EID devices are polled since second time slot, and relevant operation is carried out to LED, i.e., each
The plug state of corresponding a port EID device is detected in time slot 1ms, and the LED light of corresponding ports is operated according to plug state
It lights or extinguishes；
The time slot of the last one 6ms reads and writes registration code operation to specified EID device according to order, if last
Without completing to read and write specified EID device registration code operation in the time slot of one 6ms, the last one time slot is extended one
A polling cycle, i.e., the last one time slot extends to 26ms, if be still unable to complete, continues to extend, until the last one when
It can complete to read and write specified EID device registration code operation in gap, complete after operating, restore the normal poll of next round.
In the present invention, N circuit-switched data gating signal line uses microprocessor, decoder and N number of NMOS being correspondingly connected with
The circuit connection of pipe or NPN triode realizes that this scheme is simple and easy, and switching speed is fast, low in energy consumption.
Microprocessor connects decoder input terminal by the road M control line, and decoder exports N circuit-switched data gating signal line, often
Circuit-switched data gating signal line is correspondingly connected with a NMOS tube or NPN triode, controls EID device by NMOS tube or NPN triode
The gating or cut-off of part and LED cathode and GND；Wherein, 2M≥N。
As shown in figure 3, below by 13 circuit-switched data gating signal lines gating or cut-off for be described in detail, at this time
M takes 4, i.e. microprocessor is connect by 4 road control line A, B, C, D with 2 group of 238 decoder, and 238 decoders export the choosing of 13 circuit-switched datas
Messenger line；Every circuit-switched data gating signal line is correspondingly connected with a NMOS tube, controls EID device and LED cathode by NMOS tube
Gating or cut-off with GND, realization (contain: intelligent connector EID chip corresponding to 12 golden fingers 13 EID chips
DS2431G+, 1 this disk EID chip DS2431P+) and 13 LED (contain: port led LED corresponding to 12 golden fingers,
1 disk lamp) addressing (corresponding signal wire COM [1:13]), specifically:
In the 14th time slot, microprocessor inputs four road level to 238 decoders by 4 road control line A, B, C, D
1100, corresponding 13rd circuit-switched data gating signal line exports high level at this time, and NMOS transistor conduction connected to it is correspondingly connected with
LED cathode and EID device ground foot ground connection gating, can access to LED the and EID device；
At this point, EID control bus sends handshake, if EID device corresponding with the 13rd circuit-switched data gating signal line
In place, then EID control bus can detect the answer signal of corresponding EID device, realize the inspection to the EID device plug state
It surveys；LED control bus output high level or low level, LED corresponding with the 13rd circuit-switched data gating signal line will be lit or extinguish.
Gating to other data strobe signal lines and the control and above-mentioned mistake to corresponding EID device and LED
Cheng Xiangtong, details are not described herein.
As shown in Figure 1, 2, relay management unit is communicated with master control administrative unit by 485, and relay management unit is logical
RJ45 connector is crossed to 6 tunnels of input control signal (including signal control line one-wire bus, LED control bus Led
Control, by the tetra- road control line of A, B, C, D of microprocessor connection decoder, the signal level combination of four road control lines passes through
238 decoders can control the level change of 13 groups of signals), to realize to 13 EID devices, the control of 13 LED.
Operation for service board contains 5 big modules: timer module (Time), light control module (Led_
Control), serial monitoring module (Uart_Monitor), register module (Register_Control) and EID control module
(Ds2431_Control3) see Fig. 4).
Timer module exports 3 time control signals Cnt_1ms, Flag_250ms and Flag_500ms, that is, generates
Base when base, 500ms timing when base, 250ms timing when 1ms timing.1 Clock (2.048MHz) period Cnt_1ms of every mistake is with regard to certainly
Add 1, Cnt_1ms often to add for 1 circle time just crossed 1ms, is added to 2047 always and continues from adding, so in cycles from 0 again.Flag_
The every 500ms that crosses of 500ms is overturn 1 time, and the every 250ms that crosses of Flag_250ms is overturn 1 time, this 3 signals are supplied to entire engineering conduct
The foundation of time control.Cnt_1ms signal is mainly used to control polling time slot；Flag_250ms and Flag_500ms signal is main
For controlling the quick flashing and slow flash of LED.
Register module is the bridge of data exchange between MCU and microprocessor, and MCU is by this module to microprocessor
Internal register and RAM read and write operation, i.e. MCU unit is read and write by internal bus in the register module of microprocessor
Hold, microprocessor module carries out corresponding operation for the different content of register, if MCU is by 01 register write of microprocessor
Entering value 1, microprocessor monitors trigger light control module after and light 1 signal lamp, otherwise, and by this register write-in value 0, then micro process
Device then extinguishes 0 signal lamp.
Light control module, when using the signal Flag_250ms and Flag_500ms of Time module output according to related register
The base when difference that the state (go out, is bright, slow flash and quick flashing) of point multiplexing control LED is generated according to timer module, generation clock
Different lamp states.
Serial monitoring module, whether according to asynchronous serial port bus protocol, monitoring in asynchronous serial port bus has data flow and 8 words
Activation code Lead_Code matching is saved, wakes up MCU if discovery has matched data flow.
EID control module is realized the control to EID device according to one-wire bus protocol and DS2431 timing, is realized
The status inquiry in place of EID device reads and writees data to EID device.The module includes: to the control of EID device
1,6 groups of poll totally 78 EID devices, and record presence.
2, it records the state change information in place in 6 groups of EID devices and wakes up MCU.
3, relevant operation (high fast reading 32bytes, writing 8bytes and reading 8bytes registration code) is carried out to EID device.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. a kind of control method of fiber port, which comprises the following steps:
Microprocessor is controlled N number of using N circuit-switched data gating signal line, all the way EID control bus and a paths of LEDs control bus management
Fiber port；The corresponding fiber port of data strobe signal line all the way；
Microprocessor controls the on-off of N circuit-switched data gating signal line by time-sharing format, and a number is only gated in each time slot
According to gating signal line, the access that fiber port is corresponded to the circuit-switched data gating signal line is realized, by multiple time-sharing operations one
The access to N number of fiber port is completed in a polling cycle；
When data strobe signal line is strobe state all the way, EID control bus and LED control bus are respectively to the fiber port
Corresponding EID device and LED carry out relevant operation.
2. the method according to claim 1, wherein N circuit-switched data gating signal line uses microprocessor, decoder
And N number of NMOS tube being correspondingly connected with or the circuit connection of NPN triode are realized；
Microprocessor connects decoder input terminal by the road M control line, and decoder exports N circuit-switched data gating signal line, every number
Be correspondingly connected with a NMOS tube or NPN triode according to gating signal line, by NMOS tube or NPN triode control EID device and
The gating or cut-off of LED cathode and GND；Wherein, 2M≥N。
3. the method according to claim 1, wherein when optical fibre management system includes multiple intelligent blocks
When, microprocessor is utilized respectively N circuit-switched data gating signal line, all the way EID control bus and paths of LEDs control bus management control
The N number of fiber port of each intelligence block.
4. according to the method described in claim 3, it is characterized in that, microprocessor can concurrent management intelligence block most
Big quantity is determined by the practical core number and microprocessor internal resource of optical cross box.
5. the method according to claim 1, wherein EID device corresponding to the fiber port and LED carry out phase
Closing operation includes:
Plug state detection is carried out to EID device, reads and writes registration code operation to specified EID device；
LED is lighted or is extinguished, the operation of quick flashing or slow flash.
6. according to the method described in claim 5, it is characterized in that, completing a poll week of the access to N number of fiber port
Phase includes N+1 time slot；
Top n time slot is polled N number of pair of EID device, and carries out relevant operation to LED, specifically:
The plug state of a corresponding fiber port EID device is detected in each time slot, and is operated and corresponded to according to plug state
The LED of port is lighted or is extinguished；
In the last one time slot, registration code operation is read and write to specified EID device according to order.
7. according to the method described in claim 6, it is characterized in that, the last one time slot is greater than preceding N in a polling cycle
A time slot.
8. according to the method described in claim 6, it is characterized in that, completing when no in the last one time slot to specified EID
When device reads and writes registration code operation, next polling cycle continues for carrying out reading and writing note to specified EID device
Volume code operation, and the normal wheel of next cycle recovery after completing to read and write specified EID device registration code operation
It askes.
9. according to the method described in claim 6, it is characterized in that, starting to carry out N number of pair of EID device in each polling cycle
Before poll, increase a reset time slot, for the charging waiting time to EID device.
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| CN201910025662.7A CN109769155B (en) | 2019-01-11 | 2019-01-11 | Control implementation method of optical fiber port |
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| CN109769155B (en) | 2021-09-21 |
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