CN104502663B - A kind of optical fiber current mutual inductor device - Google Patents
A kind of optical fiber current mutual inductor device Download PDFInfo
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- CN104502663B CN104502663B CN201410778495.0A CN201410778495A CN104502663B CN 104502663 B CN104502663 B CN 104502663B CN 201410778495 A CN201410778495 A CN 201410778495A CN 104502663 B CN104502663 B CN 104502663B
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Abstract
The invention discloses a kind of optical fiber current mutual inductor device, including：Optical fiber current mutual inductor, combining unit and state quantity data monitoring modular, wherein, optical fiber current mutual inductor is coupled by switch state and sampled value interface with combining unit, and optical fiber current mutual inductor is also coupled by emulation mode amount interface with state quantity data monitoring modular；Wherein, combining unit receives switch state and sample values from optical fiber current mutual inductor, and is sent to state quantity data monitoring modular；Emulation mode amount data are sent to state quantity data monitoring modular by optical fiber current mutual inductor.The monitoring to optical fiber current mutual inductor running status amount can be achieved using the present invention.
Description
Technical field
The present invention relates to optical fiber current mutual inductor technical field, and in particular to a kind of optical fiber current mutual inductor device.
Background technology
Optical fiber current mutual inductor is a kind of electronic current mutual inductor, have electromagnetism interference performance is good, measurement range is big,
Response band is wide, measurable alternating current-direct current and it is convenient for installation and maintenance the advantages that, as electronic current mutual inductor development
Trend.In actual applications, the scene operation of optical fiber current mutual inductor can be influenceed by various external factors and internal factor,
Such as environment temperature, vibration, impact, electromagnetic interference, opto-electronic device ageing of performance, optical path loss increase, etc..These factors
The inside Key state for causing optical fiber current mutual inductor is changed, long-term use of stability and reliability are poor, unfavorable
In the application of optical fiber current mutual inductor Related product.
The content of the invention
In view of this, the present invention proposes a kind of optical fiber current mutual inductor device, and it is mutual to monitor fibre-optic current in the process of running
Multiple quantity of states of sensor, for failure predication and diagnosis.
The present invention provides a kind of optical fiber current mutual inductor device, including：Optical fiber current mutual inductor, combining unit and quantity of state
Data monitoring module, wherein, optical fiber current mutual inductor is coupled by switch state and sampled value interface with combining unit, optical fiber
Current transformer is also coupled by emulation mode amount interface with state quantity data monitoring modular；Wherein, combining unit is received and come from
The switch state and sample values of optical fiber current mutual inductor, and it is sent to state quantity data monitoring modular；Fibre-optic current is mutual
Emulation mode amount data are sent to state quantity data monitoring modular by sensor.
Preferably, wherein optical fiber current mutual inductor is connected by optical fiber or cable with combining unit, optical fiber current mutual inductor
Also it is connected by optical fiber or cable with state quantity data monitoring modular.
Preferably, wherein the transmission of switch state and sample values and emulation mode amount data is based on space division multiplexing skill
Art.
Preferably, wherein the transmission of emulation mode amount data is based on time-division multiplex technology.
Preferably, wherein state quantity data monitoring modular is needed by emulation mode amount interface to optical fiber current mutual inductor transmission
The address of the emulation mode amount to be inquired about, optical fiber current mutual inductor beam back the current parameter value of emulation mode amount corresponding to address.
Preferably, wherein switch state and sample values include alarm switch state quantity data, wherein alarm switch
State quantity data is used to indicate light path abnormality, circuit abnormality state, communication abnormality state, light source driving abnormality, light
Power abnormality, half-wave voltage abnormality, abnormality of temperature sensors state and/or FPGA abnormalities.
Preferably, wherein switch state and sample values include service switch state quantity data, wherein service switch
State quantity data is used to indicate light path service mode, maintenance circuit state, communication service mode, light source driving service mode, light
Power service mode, half-wave voltage service mode, temperature sensor service mode and/or FPGA service modes.
Preferably, wherein emulation mode amount data are used to indicate light source drive current value, light source drive voltage value, light source system
Cold current value, light source refrigeration voltage value, light-source temperature value, light source power value, half-wave voltage value, sensing head temperature value, collector
Temperature value and/or reference source magnitude of voltage.
Preferably, wherein the transmission protocol data frame structure of switch state and sampled value interface includes start bit, data
Position, mode bit and check bit, wherein data bit include sample values, and mode bit includes switch state data.
Preferably, wherein the transmission protocol data frame structure of emulation mode amount interface includes start bit, data bit and verification
Position, wherein data bit include status register address and status register value, each status register and every emulation mode amount
Correspond.
Beneficial effects of the present invention：
1st, the embodiment of the present invention makes optical fiber current mutual inductor possess the ability being monitored to oneself state, and it is obtained in real time
The state quantity data taken can diagnose for equipment operation failure and provide practical foundation, help to improve the stabilization of optical fiber current mutual inductor
Property and reliability.
2nd, the quantity of state of optical fiber current mutual inductor is divided into switch state and emulation mode amount by the embodiment of the present invention, is opened the light
Quantity of state is sub-divided into alarm switch quantity of state and service switch quantity of state, and quantity of state is supervised from three levels on the whole
Survey, and devise the transmission means of space division multiplexing and time division multiplexing combination in the data transmission, data transfer real-time is high, can expand
Malleability can be good, and sample data is sufficient, is ready to carry out comprehensive analysis to switch state and emulation mode amount；
3rd, the state information and sampled value that background process equipment utilization is obtained, can be pre- in time before the failure occurs
Alert, fast positioning after failure occurs is significant to the reliability of raising whole system network.
Brief description of the drawings
Fig. 1 is the structured flowchart of the optical fiber current mutual inductor device of the embodiment of the present invention.
Fig. 2 is the connection diagram of the optical fiber current mutual inductor device of the embodiment of the present invention.
Fig. 3 is the state quantity data classification schematic diagram of the optical fiber current mutual inductor device monitoring of the embodiment of the present invention.
Fig. 4 is the switch state data of the embodiment of the present invention and the host-host protocol figure of sample values.
Fig. 5 is the emulation mode amount data query transmission descending protocol figure of the embodiment of the present invention.
Fig. 6 is that the emulation mode amount data query of the embodiment of the present invention transmits up protocol figure.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical scheme is described in detail.
Fig. 1 shows the structured flowchart of the optical fiber current mutual inductor device 100 of the embodiment of the present invention, including fibre-optic current is mutual
Sensor 101, combining unit 102 and state quantity data monitoring modular 103；With reference to figure 2, optical fiber current mutual inductor 101 passes through switch
Quantity of state and sampled value interface 120 couple with combining unit 102, and optical fiber current mutual inductor 101 also passes through emulation mode amount interface
130 couple with state quantity data monitoring modular 103.
During work, on the one hand, combining unit 102 receives switch state and sampled value number from optical fiber current mutual inductor 101
According to then sending the data to state quantity data monitoring modular 103；On the other hand, state quantity data monitoring modular 103 is from optical fiber
Current transformer 101 receives emulation mode amount data.
On combining unit, it is physical assemblies, and its its most important function in optical fiber current mutual inductor device is to adopt
The merging and transmission service of sample value, optical fiber current mutual inductor are communicated by combining unit with host computer realization, usual combining unit
Sample values are exported to host computer by optical fiber.Combining unit can be realized independently, can also make one jointly with transformer
Individual component parts.In Fig. 1 and Fig. 2 embodiments, combining unit 101 is realized to be independent.
On state quantity data monitoring modular, it is physical assemblies, and its major function is to obtain optical fiber current mutual inductor
Working condition parameter.Not limited to this, state quantity data monitoring modular can also obtain optical fiber current mutual inductor by combining unit
Sampled value, and analyzed and processed, obtain the relation curve of optical fiber current mutual inductor sampled value and working condition parameter.State
Data monitoring module can be that self-contained unit can also be PC.
In actual applications, optical fiber current mutual inductor 101 can pass through optical fiber or cable and combining unit 102 and quantity of state
Data monitoring module 103 connects respectively.
With reference to figure 3, the quantity of state that can be monitored on optical fiber current mutual inductor device 100, mainly include fibre-optic current mutual inductance
" switch state " of device 101 and " emulation mode amount ", according to the significance level of state information, switch state can be drawn again
It is divided into two classes：" alarm switch quantity of state " and " service switch quantity of state ", the significance level of alarm switch quantity of state is higher than maintenance
Switch state, these quantity of states show as the various quantity of state parameters during optical fiber current mutual inductor self-operating.
Wherein, alarm switch quantity of state includes：Light path abnormality, circuit abnormality state, communication abnormality state, light source drive
Dynamic abnormality, luminous power abnormality, half-wave voltage abnormality, abnormality of temperature sensors state and/or FPGA exception shapes
State.
Service switch quantity of state includes：Light path service mode, maintenance circuit state, communication service mode, light source driving dimension
Repair state, luminous power service mode, half-wave voltage service mode, temperature sensor service mode and/or FPGA service modes.
Emulation mode amount includes：Light source drive current value, light source drive voltage value, light source refrigeration current value, light source refrigeration
Magnitude of voltage, light-source temperature value, light source power value, half-wave voltage value, sensing head temperature value, collector temperature value and/or reference source
Magnitude of voltage.
In an embodiment of the present invention, switch state data and sample values are connect by switch state and sampled value
Mouth 120 is together transmitted, and emulation mode amount data are transmitted by emulation mode amount interface 130.
In an embodiment of the present invention, optical fiber current mutual inductor device 100 can be entered on hardware using space division multiplexing technology
Row data transfer, switch state is set to divide different port to transmit with emulation mode amount, switch state is by switch state and adopts
Sample value interface 120 is transmitted, and emulation mode amount is transmitted by emulation mode amount interface 130, it can be ensured that switch state real-time Transmission, mould
Intend quantity of state output and reach enough accuracy and quantity, while can also obtain enough sample datas, take into account transmission real-time and
Required of both accuracy, this helps to carry out comprehensive descision to switch state and emulation mode amount, reaches raising and judges
The purpose of accuracy.
In an embodiment of the present invention, optical fiber current mutual inductor device 100 is using time-division multiplex technology transmission emulation mode
Data are measured, realizes that neatly inquiry needs the state information paid close attention to using time-division multiplex technology, provides the user authentic data.
Specifically, in an embodiment of the present invention, based on time-multiplexed state quantity data transmission include inquire about and when
Divide multiplexing two parts.Query portion is state quantity data monitoring modular by emulation mode amount interface 130 to fibre-optic current mutual inductance
Device 101 sends the address for the quantity of state for needing to inquire about, and then optical fiber current mutual inductor 101 returns to quantity of state corresponding to the address
Current parameter value.Time division multiplexing part is inquired about at the time of referring to different to different quantity of state point, and each moment inquires about a shape
State amount, wherein the acquisition flow of each quantity of state is identical.Above-mentioned processing also referred to as time division multiplexing inquiring technology, can improve quantity of state
The flexibility of inquiry and scalability, running into has the increased situation of new quantity of state, with can easily adding new quantity of state
Location information, it is not necessary to the existing queries of change.
Switch state and sampled value interface 120 and emulation mode amount interface 130 can use serial communication protocol.Wherein,
The specific data frame that switch state and sampled value interface 120 transmit data includes start bit, data bit, mode bit and verification
Position, wherein data bit include sample values, and mode bit includes switch state data, mode bit together with data bit in real time to
Combining unit is transmitted.The specific data frame that emulation mode amount interface 130 transmits data includes start bit, data bit and check bit,
Wherein data bit includes status register address and status register value, and each status register and every emulation mode amount are one by one
It is corresponding.It is described in detail below.
Fig. 4 shows the switch state data of use of the embodiment of the present invention and the host-host protocol of sample values.The association
View includes start bit, data bit, mode bit and check bit.Start bit is hexadecimal 0xA5, and data bit includes protection passage 1 and adopted
Sample value, the sampled value of passage 2 is protected, the sampled value of Measurement channel 1, being including but not limited to 32 has symbol integer data, from high by 8
Position data start to send.
Mode bit includes the part of ST0, ST1, ST2, ST3 tetra-.Wherein, ST0 is used for validity and the alarm for representing sampled value
On off state amount instruction；ST2 is used to represent service switch state amount instruction；ST1 and ST3 is reserved byte, is expanded for mode bit
Exhibition.
Specifically, 8 of ST0 are defined as follows (in Fig. 4 " content of note 1 ")：
bit0(LSB):The protection sampled value of passage 1,0：Effectively；1：It is invalid
bit1:The protection sampled value of passage 2,0：Effectively；1：It is invalid
bit2:The sampled value of Measurement channel 1,0：Effectively；1：It is invalid
bit3:Light source (driving) abnormality alarming, 0：Normally；1：It is abnormal
bit4:Luminous power abnormality alarming, 0：Normally；1：It is abnormal
bit5:Half-wave voltage abnormality alarming, 0：Normally；1：It is abnormal
bit6:Abnormality of temperature sensors alerts, and 0：Normally；1：It is abnormal
bit7:FPGA abnormality alarmings, 0：Normally；1：It is abnormal
Specifically, 8 of ST2 are defined as follows (in Fig. 4 " content of note 2 ")：
bit0(LSB):It is reserved
bit1:It is reserved
bit2:It is reserved
bit3:Light source (driving) maintenance alarm, 0：Normally；1：Maintenance
bit4:Luminous power maintenance alarm, 0：Normally；1：Maintenance
bit5:Half-wave voltage maintenance alarm, 0：Normally；1：Maintenance
bit6:Temperature sensor maintenance alarm, 0：Normally；1：Maintenance
bit7:FPGA maintenance alarms, 0：Normally；1：Maintenance
Specifically, switch state and sampled value host-host protocol use CRC check.Verification data samples from protection passage 1
Value D0 starts, and ends to mode bit ST3, and proper polynomial is x8+x2+x1+x0 (in Fig. 4 " content of note 3 ").
Fig. 5 shows the emulation mode amount data query transmission descending protocol that the embodiment of the present invention uses.The agreement is used for
State detector issues querying command to optical fiber current mutual inductor.Agreement includes start bit, data bit and check bit.Data bit bag
Include status register address.Status register address is used to distinguish different emulation mode amounts.Status register and emulation mode
The corresponding relation of amount is as follows：
Status register address 0：Light source drive current value；
Status register address 1：Light source drive voltage value；
Status register address 2：Light source refrigeration current value；
Status register address 3：Light source refrigeration voltage value；
Status register address 4：Light-source temperature value；
Status register address 5：Light source power value；
Status register address 6：Half-wave voltage value；
Status register address 7：Sensing head temperature value；
Status register address 8：Collector temperature value；
Status register address 9：Reference source magnitude of voltage.
For the address of newly-increased emulation mode amount, address need to only be carried out adding up, communications protocol does not have to change.School
Test and use CRC check.Verification data includes register address ADDR, proper polynomial be x8+x2+x1+x0 (in Fig. 5 " note 4 "
Content).
Pass through downgoing communication agreement, it would be desirable to which the quantity of state address of acquisition is sent to optical fiber current mutual inductor, fibre-optic current
Transformer can return to corresponding analog value.By the inquiry mode that is time-multiplexed, different conditions amount is being looked at different moments
Ask, that is, improve the speed of single status amount acquisition, also increase the flexibility of quantity of state acquisition.
Fig. 6 shows that the emulation mode amount data query that the embodiment of the present invention uses transmits up agreement.The agreement is used for
Optical fiber current mutual inductor returns to Query Result to state monitor.Agreement includes start bit, data bit and check bit.Data include
Status register address, status register value.Status register value, which is including but not limited to 32, symbol shape data, first sends out
High byte.
For the Query Result of different address, Query Value is returned to using the agreement, while returns to the address of inquiry, is used for
Background authentication.Verification uses CRC check.Verification data is ended, proper polynomial x8+x2+ since ADDR to data bit D3
X1+x0 (in Fig. 6 " content of note 5 ").
Due to state quantity data monitoring modular can be according to the quantity of state parameter received to optical fiber current mutual inductor fortune
Row state is analyzed, when note abnormalities parameter when mean equipment operation exception, thus can just adopt before the failure occurs
Corresponding measure is taken, such as sends alarm, reminds operating personnel that equipment is repaired or replaced.It is this to optical fiber current mutual inductor from
Monitoring information can be transferred to background devices and carry out resultant fault prediction and judgement by the function of body monitoring running state, solve
The stability and integrity problem of optical fiber current mutual inductor longtime running, realize failure and give warning in advance, failed synchronization alarm, soon
Speed diagnosis positioning failure, accelerates overhaul of the equipments speed.Also, can also be that equipment is improved by the long-time statistical to fault type
Strong foundation is provided with upgrading.
More than, technical scheme is described in detail in conjunction with specific embodiments, described specific implementation
Example is used to help understand the thought of the present invention.The derivation that those skilled in the art make on the basis of the specific embodiment of the invention
Fallen within modification within the scope of the present invention.
Claims (8)
- A kind of 1. optical fiber current mutual inductor device, it is characterised in that including：Optical fiber current mutual inductor, combining unit and quantity of state Data monitoring module, wherein, the optical fiber current mutual inductor passes through switch state and sampled value interface and the combining unit Coupling, the optical fiber current mutual inductor are also coupled by emulation mode amount interface with the state quantity data monitoring modular；Wherein,The combining unit receives switch state and sample values from the optical fiber current mutual inductor, and is sent to institute State state quantity data monitoring modular；Emulation mode amount data are sent to the state quantity data and supervised by the optical fiber current mutual inductor Survey module；The emulation mode amount data are used to indicate light source drive current value, light source drive voltage value, light source refrigeration current value, light Source refrigeration voltage value, light-source temperature value, light source power value, half-wave voltage value, sensing head temperature value, collector temperature value and/or Reference source magnitude of voltage；The transmission protocol data frame structure of the emulation mode amount interface includes start bit, data bit and check bit, wherein data Position includes status register address and status register value, and each status register corresponds with every emulation mode amount.
- 2. optical fiber current mutual inductor device as claimed in claim 1, it is characterised in that wherein described optical fiber current mutual inductor leads to Cross optical fiber or cable to be connected with the combining unit, the optical fiber current mutual inductor also passes through optical fiber or cable and the quantity of state Data monitoring module connects.
- 3. optical fiber current mutual inductor device as claimed in claim 1, it is characterised in that wherein described switch state and sampling The transmission of Value Data and the emulation mode amount data is based on space division multiplexing technology.
- 4. optical fiber current mutual inductor device as claimed in claim 1, it is characterised in that wherein described emulation mode amount data Transmission is based on time-division multiplex technology.
- 5. optical fiber current mutual inductor device as claimed in claim 4, it is characterised in that wherein described state quantity data monitoring mould Block sends the address for the emulation mode amount for needing to inquire about, institute by the emulation mode amount interface to the optical fiber current mutual inductor State the current parameter value that optical fiber current mutual inductor beams back emulation mode amount corresponding to the address.
- 6. optical fiber current mutual inductor device as claimed in claim 1, it is characterised in that wherein described switch state and sampling Value Data includes alarm switch state quantity data, and wherein alarm switch state quantity data is used to indicate light path abnormality, circuit Abnormality, communication abnormality state, light source driving abnormality, luminous power abnormality, half-wave voltage abnormality, temperature pass Sensor abnormality and/or FPGA abnormalities.
- 7. optical fiber current mutual inductor device as claimed in claim 1, it is characterised in that wherein described switch state and sampling Value Data includes service switch state quantity data, and wherein service switch state quantity data is used to indicate light path service mode, circuit Service mode, communication service mode, light source driving service mode, luminous power service mode, half-wave voltage service mode, temperature pass Sensor service mode and/or FPGA service modes.
- 8. optical fiber current mutual inductor device as claimed in claim 1, it is characterised in that wherein described switch state and sampling The transmission protocol data frame structure of value interface includes start bit, data bit, mode bit and check bit, and wherein data bit includes sampling Value Data, mode bit include switch state data.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106093824A (en) * | 2016-05-31 | 2016-11-09 | 全球能源互联网研究院 | A kind of internal state quantity monitoring method of electronic mutual inductor |
| CN107991641A (en) * | 2017-10-27 | 2018-05-04 | 中国电力科学研究院有限公司 | It is a kind of based on optical fiber current mutual inductor independently double sampled sampling method for detecting abnormality and system |
| CN109164288A (en) * | 2018-07-10 | 2019-01-08 | 北京四方继保自动化股份有限公司 | The state monitoring method of optical fiber current mutual inductor |
| CN109212454A (en) * | 2018-08-22 | 2019-01-15 | 国网辽宁省电力有限公司电力科学研究院 | A kind of state monitoring method of the optical current mutual inductor based on FT3 frame format |
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