CN206515666U - Ship failure wave-recording harvester - Google Patents
Ship failure wave-recording harvester Download PDFInfo
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- CN206515666U CN206515666U CN201720201500.0U CN201720201500U CN206515666U CN 206515666 U CN206515666 U CN 206515666U CN 201720201500 U CN201720201500 U CN 201720201500U CN 206515666 U CN206515666 U CN 206515666U
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Abstract
The utility model provides a kind of ship failure wave-recording harvester, including shell, backboard in shell and the master cpu plate with backboard grafting, on-off model plate, of ac signal plate, DC quantity signal plate, power panel, the on-off model plate, of ac signal plate, DC quantity signal plate is respectively used to the on-off model of collection, of ac signal and DC quantity signal input to master cpu plate by backboard, the master cpu plate includes master cpu, fpga chip, isolated amplifier, analog-digital converter, photoelectric isolating circuit, the flat change-over circuit of PHY electrical, SFP optical transceiver modules.The utility model realizes the cluster sampling of power network bottom analog quantity and on-off model, alleviate the data processing load of recording main frame, user can be according to the actual features flexible arrangement collecting unit of power monitoring network position and quantity, and sample information is uploaded by optical fiber, save the consumption of secondary cable.
Description
Technical field
The utility model is related to power monitoring field, specifically a kind of ship failure wave-recording harvester.
Background technology
Fault wave recording device is a kind of smart machine generally used in national grid, when power system is normally run
When, device only carries out the collection and monitoring in real time of data, and recording will be triggered when the disturbance such as short circuit or vibration occurs in system
Situation of change and relay protection, breaker of the analog quantity such as the voltage of overall process, electric current etc. before and after failure under process, complete documentation
The action situation of switching value, technical staff can obtain desired fault message from the recorded wave file of preservation, not only can be real
The quick positioning of existing electric fault and accurate judgement, and be conducive to finding the defect of relay protection and automatics, it is easy to day
Further improve afterwards and perfect.If being included marine vessel power monitoring system, administrative staff can be undoubtedly greatly improved
Operating efficiency, is that the safe and stable operation of Ship Electrical Power System escorts.
At present, most of fault wave recording device is also confined to land large power system, field peculiar to vessel or one both at home and abroad
Piece blank.The usual sampling plan using simulation centralization, the i.e. analog signalses of bottom transformer collection and switching device
Status signal input fault wave recording device by way of hardwire, the process of A/D samplings is completed by wave recording device.But it is due to
Limited by equipment volume and data-handling capacity, the sampling channel quantity of separate unit wave recording device often only has 20 or so,
Realizing the covering of the whole network monitoring point can only be completed by way of increasing device quantity, and this further relates to the time be difficult to together
The problem of step.Meanwhile, the transmission of analog quantity needs substantial amounts of cable, not only adds difficulty of construction and maintenance cost, Er Qierong
It is easily introduced electromagnetic interference.
Utility model content
For deficiencies of the prior art, the utility model provides a kind of ship failure wave-recording harvester, can
With the requirement for the covering for meeting the whole network monitoring point in field peculiar to vessel, and it need not additionally increase wave recording device and can be achieved, drop significantly
Low difficulty of construction and maintenance cost, the reduction of number of cables also prevent the generation of electromagnetic interference.
A kind of ship failure wave-recording harvester, including shell, the backboard in shell and the master with backboard grafting
Control CPU board, on-off model plate, of ac signal plate, DC quantity signal plate, power panel, the on-off model plate, of ac
Signal plate, DC quantity signal plate are respectively used to the on-off model of collection, of ac signal and DC quantity signal passing through the back of the body
Plate inputs to master cpu plate, and the master cpu plate includes master cpu, fpga chip, isolated amplifier, analog-digital converter, light
The flat change-over circuit of electric isolating circuit, PHY electrical, SFP optical transceiver modules, master cpu are connected by PCIe buses with fpga chip, every
Signal input part from amplifier is used to access analog signalses, the signal output part of isolated amplifier by analog-digital converter with
The signal input part connection of fpga chip, the signal input part of photoelectric isolating circuit is used to access on-off model, Phototube Coupling
The signal output part of circuit and the signal input part of fpga chip are connected, and signal output part and the PHY electrical flat turn of fpga chip are changed
The signal input part connection of circuit, the signal output part of the flat change-over circuit of PHY electrical is connected with SFP optical transceiver modules, the transmitting-receiving of SFP light
Module is used to be connected with recording main frame by multimode fibre.
Further, master cpu plate, on-off model plate, of ac signal plate, DC quantity signal plate and power panel difference
It is connected by Harding's connector with backboard.
Further, the master cpu is based on Vxworks embedded real-time operating systems, from PowerPC frameworks
MPC8308 communication processors.
Further, the fpga chip uses the EP4CGX50 devices of altera corp.
The utility model introduces failure wave-recording technology among marine vessel power monitoring system, devises a kind of digitlization distribution
Formula collecting unit, realizes the cluster sampling of power network bottom analog quantity and on-off model, at the data for alleviating recording main frame
Reason burden.User can be according to the actual features flexible arrangement collecting unit of power monitoring network position and quantity, and pass through light
Fibre uploads sample information, saves the consumption of secondary cable.Collecting unit uses veneer Distributed Design, mainly including master control
CPU board, of ac signal plate, DC quantity signal plate, on-off model plate and power panel, the type of collection plate can be according to scene
Situation is adjusted accordingly.The data that the utility model is applied to the Ship Electrical Power System failure wave-recording of various voltage class are adopted
Collection.
Brief description of the drawings
Fig. 1 is the electrical block diagram of the utility model ship failure wave-recording harvester.
In figure：10-backboard, 20-master cpu plate, 30-on-off model plate, 40-of ac signal plate, 50-straight
Flow signal plate, 60-power panel, 21-master cpu, 22-fpga chip, 23-isolated amplifier, 24-analog-digital converter,
25-photoelectric isolating circuit, the flat change-over circuit of 26-PHY electrical, 27-SFP optical transceiver modules, 28-RJ-45 interfaces, 29-USB
Interface, 41-common mode inductance coil, 42-voltage transformer, 43-current transformer, 44-excess voltage protection.
Embodiment
Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model is carried out clearly and completely
Description.
Fig. 1 show the electrical block diagram of the utility model ship failure wave-recording harvester, the ship failure
Recording harvester, which includes shell, the backboard 10 in shell and the master cpu plate 20 with the grafting of backboard 10, switching value, to be believed
Number plate 30, of ac signal plate 40, DC quantity signal plate 50, power panel 60.
The utility model collecting unit carries out installation fixation using front panel mode, guide rail truss, the preceding outlet mode of connection,
There is no rear service clearance.Shell is made of metal material, closed dust design, fan-free, natural heat dissipation.
Traditional electrical quantity collection is typically all to pass through cable by devices such as the secondary side of routine transformer and protection, observing and controlling
Sampling module be connected realize A/D change.The analog signalses that collecting unit in the utility model then exports transformer
With passive contact export on-off model merges, and by isolation amplification, A/D change, Manchester's code, finally according to
Digital quantity is transmitted directly to recording main frame by IEEE802.3 agreements by optical transceiver module.
60 points of master cpu plate 20, on-off model plate 30, of ac signal plate 40, DC quantity signal plate 50 and power panel
It is not connected by Harding's connector with backboard 10.
The of ac signal plate 40 includes common mode inductance coil 41, voltage transformer 42, current transformer 43, overvoltage
Protection circuit 44, the current signal of 0~100V voltage signal and 0~5A can be converted into 0 by it by secondary transformer
~3.53V voltage signal, is then connected by excess voltage protection 44, Harding's connector with backboard 10, by the electricity of sensing
Pressure signal is transferred to master cpu plate 20.
The DC quantity signal plate 50 is used for the sampling work for completing direct current signal.DC voltage or electric current are single by gathering
Hall sensor inside member is changed into 0~± 10V low-voltage or 4~20mA weak current.Weak electric signal is connected by outer end
Connect device and enter board, changed by EMI filter protective circuits, signal processor, isolated amplifier, signal transacting and isolation level
The links such as circuit, are connected finally by backboard 10 with master cpu plate 20.
The master cpu plate 20 includes master cpu 21, fpga chip 22, isolated amplifier 23, analog-digital converter 24, light
The flat change-over circuit 26 of electric isolating circuit 25, PHY electrical, SFP optical transceiver modules 27, RJ-45 interfaces 28, USB interface 29.
Master cpu 21 is connected by PCIe buses with fpga chip 22, the signal input part of isolated amplifier 23 and Harding
Connector is connected, and to access analog signalses, the signal output part of isolated amplifier 23 passes through analog-digital converter 24 and FPGA cores
The signal input part connection of piece 22, the signal input part of photoelectric isolating circuit 25 is connected with Harding's connector, to access switching value
Signal, the signal output part of photoelectric isolating circuit 25 is connected with the signal input part of fpga chip 22, the signal of fpga chip 22
Output end is connected with the signal input part of the flat change-over circuit of PHY electrical 26, the signal output part and SFP of the flat change-over circuit 26 of PHY electrical
Optical transceiver module 27 is connected, and SFP optical transceiver modules 27 are used to be connected with recording main frame by multimode fibre, and multimode fibre can be used
The multimode fibre of 62.5/125 μm of specification, its maximum communication distance is 275m, and baud rate can reach 100Mbit/s.
SFP optical transceiver modules 27 are a kind of international standard interface devices that kilomegabit electric signal is converted to optical signal, tool
Have the advantages that compact conformation, power consumption are relatively low, support hot plug, cabinet space can be effectively saved, radiating is reduced, conveniently replace
Change, therefore as the communication interface between collecting unit and recording main frame.
The operation principle of SFP optical transceiver modules 27：Laser-driven chip is first by the differential logic signal of input (T+/-)
The laser drive signal of plan is modulated into, laser diode sends corresponding optical signal, receiving terminal is sent to by optical fiber.Light is believed
Number can occur certain decay or deformation after remote transmission, SFP Optical Receivers is converted into after electric signal (R+/-),
By the data signal for suitably amplifying the standard of being reduced into.MODDEF1 and MODDEF2 are respectively I2C clock line and data wire, main
To be used for reading the relevant information in EEPROM storage chips, such as type of SFP modules, the state of current lasers, module longevity
Order the functions such as prediction, fault location.The input that Tx Fault and LOS high-low-position change are then used to refer to whether there is optical signal is defeated
Go out, it can be resetted by TX Disable once SFP detects abnormal conditions.
Exchanged to meet high speed of the high-volume sampled data between processor, memory and I/O equipment, this practicality is new
Using PCIe buses as the communication interface between chip chamber and plate inside type collecting unit, by using the side of end-to-end serial connection
Formula transmits Low Voltage Differential Signal, the problems such as overcoming the intrinsic signal skew of parallel bus, cross-talk, narrower bandwidth.With biography
The pci bus of system is compared, PCIe buses have response speed faster, slot volume-diminished, support transmitted in both directions and hot plug work(
The advantages such as energy, meet ship failure wave-recording dress very much in terms of real-time network communication, saving cabin space, reduction maintenance difficulties
The design requirement put.
In the present embodiment, the master cpu 21 is based on Vxworks embedded real-time operating systems, from PowerPC framves
The MPC8308 communication processors of structure, the instruction buffer of data buffer storage and 16KB of the e300c3 kernels therein with 16KB, operation
Frequency is up to 400MHz, can provide 266MHz message transmission rate.In addition, MPC8308 processors additionally provide 1 32
Ethernet controller, 1 local bus controller, 2 I of DDR2 Memory Controllers, 2 10/100/1000Mbit/s2C
Bus, 1 PCIe interface and Serial Peripheral Interface (SPI) (RJ-45 interfaces 28 and USB interface 29).Can be right by RJ-45 interfaces 28
Collecting unit is managed operation, and USB interface 29 is then used for carrying out parameter configuration and software upgrading.
Fpga chip 22 uses the EP4CGX50 devices of altera corp, passes through PCIe buses and MPC8308 processing
Device is connected, and realizes the direct-connected of multiple network interfaces.Meanwhile, multiple MII interfaces are realized by hardware description language, for completing
The connection of 100Mbit/s SFP communication interfaces.The input of 16 analog quantitys of multichannel and the level conversion of switching value are by FPGA cores
Piece 22 is gathered, and is stored by internal BUFFER, is finally scheduled by processor and is converted to MII interface data, then
It is sent to after being changed through the flat change-over circuit 26 of PHY electrical by SFP optical transceiver modules 27 in recording main frame.
The utility model is placed in the site control cabinet of ship net, can be according to how much spirits of different monitoring area sampling point
The quantity of increase and decrease collecting unit living, realizes analog quantity and the cluster sampling of switching value and numeral is changed, and its technical advantage is：
1) of ac, DC quantity and switching value sampling are completed by collecting unit, and function is more concentrated.Different sampled points
Signal integration realize bottom data share, both improve resource utilization, development cost reduced again.
2) distributed frame saves cabin space-consuming, improves extension redundancy.Collecting unit passes through a small amount of optical fiber and record
Ripple main frame is communicated, and saves substantial amounts of secondary cable, wiring and maintenance are more prone to, by the quantity for increasing and decreasing collecting unit
The extension and upgrading of number of channels and memory capacity can be achieved.
3) analog-to-digital conversion is preposition, mitigates recording host data processing load.The digitized processing of analog quantity gives front end
Collecting unit is completed, and recording main frame is only needed to extract sample information from the network message of upload, drastically increased
The processing speed of recording main frame.
4) contour structures are simple, size is small, lightweight, are especially suitable for the narrow and small cabin spaces of ship and installed, a whole set of
Equipment has high-protection level, with anti-vibration and impact capacity, waterproof and dustproof, salt spray proof, anticorrosion, high-low temperature resistant, electromagnetism
The advantages of radiating small.
5) performance indications such as sampling resolution, sampling precision, sample frequency, overload capacity can meet Ship Electrical Power System
The demand of failure wave-recording.
It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
It is any to belong to those skilled in the art in the technical scope that the utility model is disclosed in this, the change that can be readily occurred in
Change or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with power
The protection domain that profit is required is defined.
Claims (4)
1. a kind of ship failure wave-recording harvester, it is characterised in that：Backboard (10) including shell, in shell and with
The master cpu plate (20), on-off model plate (30), of ac signal plate (40), DC quantity signal plate of backboard (10) grafting
(50), power panel (60), the on-off model plate (30), of ac signal plate (40), DC quantity signal plate (50) are used respectively
In the on-off model of collection, of ac signal and DC quantity signal are inputed into master cpu plate (20) by backboard (10),
The master cpu plate (20) include master cpu (21), fpga chip (22), isolated amplifier (23), analog-digital converter (24),
Photoelectric isolating circuit (25), the flat change-over circuit of PHY electrical (26), SFP optical transceiver modules (27), master cpu (21) are total by PCIe
Line is connected with fpga chip (22), and the signal input part of isolated amplifier (23) is used to access analog signalses, isolated amplifier
(23) signal output part is connected by analog-digital converter (24) with the signal input part of fpga chip (22), photoelectric isolating circuit
(25) signal input part is used to access on-off model, signal output part and the fpga chip (22) of photoelectric isolating circuit (25)
Signal input part connection, the signal input part of the signal output part of fpga chip (22) and the flat change-over circuit of PHY electrical (26) connects
Connect, the signal output part of the flat change-over circuit of PHY electrical (26) is connected with SFP optical transceiver modules (27), SFP optical transceiver modules (27) are used
It is connected in by multimode fibre with recording main frame.
2. ship failure wave-recording harvester as claimed in claim 1, it is characterised in that：Master cpu plate (20), switching value letter
Number plate (30), of ac signal plate (40), DC quantity signal plate (50) and power panel (60) pass through Harding's connector and the back of the body respectively
Plate (10) is connected.
3. ship failure wave-recording harvester as claimed in claim 1, it is characterised in that：The master cpu (21) is based on
Vxworks embedded real-time operating systems, from the MPC8308 communication processors of PowerPC frameworks.
4. ship failure wave-recording harvester as claimed in claim 1, it is characterised in that：The fpga chip (22) uses
The EP4CGX50 devices of altera corp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720201500.0U CN206515666U (en) | 2017-03-02 | 2017-03-02 | Ship failure wave-recording harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720201500.0U CN206515666U (en) | 2017-03-02 | 2017-03-02 | Ship failure wave-recording harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206515666U true CN206515666U (en) | 2017-09-22 |
Family
ID=59869393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720201500.0U Active CN206515666U (en) | 2017-03-02 | 2017-03-02 | Ship failure wave-recording harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206515666U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108255755A (en) * | 2017-12-08 | 2018-07-06 | 天津津航计算技术研究所 | PCIE functional universal communication interface modules based on FPGA |
| CN113093696A (en) * | 2021-03-26 | 2021-07-09 | 中国舰船研究设计中心 | Marine miniaturized distributing type acquisition control device |
-
2017
- 2017-03-02 CN CN201720201500.0U patent/CN206515666U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108255755A (en) * | 2017-12-08 | 2018-07-06 | 天津津航计算技术研究所 | PCIE functional universal communication interface modules based on FPGA |
| CN108255755B (en) * | 2017-12-08 | 2020-03-27 | 天津津航计算技术研究所 | PCIE general multifunctional communication interface module based on FPGA |
| CN113093696A (en) * | 2021-03-26 | 2021-07-09 | 中国舰船研究设计中心 | Marine miniaturized distributing type acquisition control device |
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