CN106681179A - Real-time synchronization data acquisition device - Google Patents
Real-time synchronization data acquisition device Download PDFInfo
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- CN106681179A CN106681179A CN201510761162.1A CN201510761162A CN106681179A CN 106681179 A CN106681179 A CN 106681179A CN 201510761162 A CN201510761162 A CN 201510761162A CN 106681179 A CN106681179 A CN 106681179A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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Abstract
The invention discloses a real-time synchronization data acquisition device which comprises the components of a master control equipment interface which is connected with master control equipment that performs data acquisition, a controlled equipment interface which is connected with controlled equipment of which the data are to be acquired, a control unit which is connected between the master control equipment interface and the controlled equipment interface, and a synchronization interface which is connected with the control unit, wherein the control unit makes master control equipment perform synchronous data acquisition from controlled equipment according to a synchronization signal received from the synchronization interface through the master control equipment interface and the controlled equipment interface. The synchronization data acquisition device discloses in the invention can realize synchronization signal receiving and transmitting and synchronization of a data acquisition signal and a command, thereby realizing real-time continuous acquisition and communication protocol conversion of the data, and realizing high meaning in improving signal acquisition accuracy, real-time performance and usability in a power field.
Description
Technical field
The present invention relates to a kind of real-time synchronization data acquisition unit applied in power domain.
Background technology
Signal is synchronously basic demand of the power system to transmission signal.Synchronous at present is (such as the second by outer synchronous signal
Pulse, IRIG-B codes etc.) come what is synchronized.
In the check test of current transformer, need to realize that standard mutual inductor sampled data is realized with the signal of tested transformer
Complete Synchronization, and standard mutual inductor adopts at present analog signal output mostly.This is accomplished by carrying out data syn-chronization to analogue signal
Sampling, after obtaining digital signal, carries out the calculating of index of correlation.Standard signal sampling is realized using high-precision meter.One
As high-precision meter possess the high-speed interfaces such as GPIB mouths, but existing GPIB cards (CN201084145Y, CN at present
201616025 201716040 U etc. of U, CN201072549Y, CN) interface do not possess synchronizing signal transmission-receiving function, uses
Extra increase synchronizing signal is needed in power system；In addition, power system sampled output signal is typically adopted
The standard agreements such as IEC61850-9-1, IEC61850-9-2 are exported, and using existing GPIB calorie requirements data conversion is carried out,
Increased and apply difficulty；Power system interface form is more, and existing GPIB cards only support a kind of interface (USB interface)
Form, needs additionally to carry out interface conversion；Existing GPIB cards are designed as being connected with PC etc., its data acquisition it is real-time
Property is unsatisfactory for application requirement, while this kind of control mode cannot also realize the high sampling rate continuous acquisition of data.
Therefore, in order to the application such as check test for preferably carrying out current transformer, one kind is needed to possess high-precision meter
Interface and possess synchronizing signal transmitting-receiving, support communication of power system agreement, interface versatile and embedded system connection,
A kind of synchronous data collection device that real time continuous data is gathered can be realized.
The content of the invention
It is an object of the invention to provide a kind of real-time synchronization data acquisition unit, can realize synchronizing signal transmitting-receiving and real-time continuous number
According to gathering and supporting multiple interfaces and communications protocol, so as to improve power system in the accuracy of signals collecting, real-time and easily
The property used.
The present invention provides a kind of real-time synchronization data acquisition unit, including：Main control device interface, sets with the master control of gathered data
Standby connection；Controlled device interface, is connected with the controlled device of data to be collected；Control unit, is connected to main control device interface
Between controlled device interface, control main control device is from controlled device synchronous acquisition；Sync cap, connects with control unit
Connect, wherein control unit is divided according to the synchronizing signal received from sync cap by main control device interface and controlled device interface
Kong Zhi not main control device and controlled device.
According to an aspect of the present invention, described control unit includes：Main control unit；Main control device control unit, one end
It is connected with one end of main control unit, the other end is connected with main control device interface, controls main control device interface and main control unit
Between interaction；Controlled device control unit, one end is connected with the other end of main control unit, and the other end connects with controlled device
Mouth connection, controls interacting between controlled device interface and main control unit；Synchronous control unit, one end and main control unit
Connection, the other end is connected with sync cap, and the external signal of motor synchronizing in future interface is provided to main control unit；Main control list
Unit is controlled according to the signal that synchronous control unit is provided to main control device control unit and controlled device control unit, and then
Control main control device and controlled device.
According to an aspect of the present invention, the sync cap includes：Outer synchronous input interface, one end is defeated with external synchronization signal
Outgoing interface connects, and one end is connected with the synchronous control unit, and it receives outer synchronous signal from external synchronization signal output interface
And provide to the synchronous control unit；Main control device sync cap, one end is connected with the main control device, the other end and institute
State synchronous control unit to be connected, the synchronizing signal that described control unit is produced is sent to into the main control device between signal
Synchronization；Controlled device sync cap, one end is connected with the controlled device, and the other end is connected with the synchronous control unit,
The synchronizing signal that described control unit is produced is sent to into the controlled device for the synchronization between signal.
According to an aspect of the present invention, the form of the sync cap includes optical interface and electrical interface, and the optical interface includes
ST interfaces, the electrical interface includes coaxial cable interface；
According to an aspect of the present invention, the form of the main control device interface includes optical interface and electrical interface, the optical interface bag
ST interfaces, FC interfaces, SC interfaces are included, the electrical interface includes Ethernet interface, serial interface.
According to an aspect of the present invention, the form of the controlled device interface includes gpib interface, USB interface.
Compared with immediate prior art, the invention has the advantages that：1) support synchronous signal transmitting-receiving, can be real
Existing data acquisition signal and the synchronization of order；2) the real-time continuous sampling of data can be realized；3) possess high-precision meter to commonly use
Gpib interface or USB interface, can control high-precision meter, for realizing the accurate sampling of signal；4) electric power neck is supported
The various communications protocols conversion in domain；5) interface shape is various, meets the interface shape under different demands.Therefore, the present invention
Can be good at solving deficiency of the current universal data acquisition unit in power system application especially in electric-power metering field side
The deficiency in face, collection accuracy, real-time and the ease for use to improving signal has great significance.
Description of the drawings
Fig. 1 is the structured flowchart of the synchronous data collection device according to the embodiment of the present invention；
Fig. 2 is the detailed block diagram of the synchronous data collection device according to the embodiment of the present invention.
Wherein, description of reference numerals is as follows：
Synchronous acquisition device 10
Main control device 11
Controlled device 12
Controlled device interface 1
Control unit 2
Main control device interface 3
Sync cap 4
Controlled device control unit 21
Main control unit 22
Main control device control unit 23
Synchronous control unit 24
Controlled device sync cap 41
Outer synchronous input interface 42
Main control device sync cap 43.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in further detail.It is understood that described herein
Specific embodiment is only used for explaining the present invention, rather than limitation of the invention.It also should be noted that, for the ease of retouching
State, part related to the present invention rather than entire infrastructure are illustrate only in accompanying drawing.
Embodiment one：
The present embodiment provides a kind of real-time synchronization data acquisition unit, and its structured flowchart is as shown in Figure 1.The synchronous data collection
Device 10 includes main control device interface 3, and the main control device interface 3 is connected with the main control device 11 of data to be collected, uses
In the control signal that main control device 11 is issued is received, while by the data is activation for collecting to main control device 11；Controlled device
Interface 1, is connected with the controlled device 12 of data to be collected, and for controlling the parameter setting of controlled device, gathered data is read
The operation such as take；Control unit 2, is connected between the main control device interface 1 and the controlled device interface 1；Synchronously connect
Mouth 4, is connected with described control unit 2, and wherein described control unit 2 is according to the synchronization received from the sync cap 4
Signal controls respectively the main control device 11 with the quilt by the main control device interface 3 and the controlled device interface 1
Control equipment 12.The main control device of gathered data can be combining unit, tester, state monitor, electric energy meter, record ripple
The embedded devices such as instrument.Controlled device 12 can be the equipment such as circuit tester, energy meter, oscillograph, and main control device 11 passes through
The control real-time synchronization ground of control unit 2 is from controlled device gathered data.
The form of sync cap includes optical interface and electrical interface, and wherein optical interface includes ST interfaces, and electrical interface includes coaxial cable
Line interface.The form of main control device interface 3 also includes optical interface and electrical interface；Wherein optical interface includes ST interfaces, and FC connects
Mouth, SC interfaces etc.；Electrical interface includes Ethernet interface, serial interface (including but not limited to RS232, RS422, RS485
Deng) etc..The interface shape of controlled device interface 1 includes gpib interface, USB interface etc..
Fig. 2 shows the detailed structure view of the real-time synchronization data acquisition unit 10.As shown in Fig. 2 synchronous acquisition device
Control unit 2 in 10 includes main control unit 22, and the chip of the main control unit is, for example, MPC8313 etc.；Master control sets
Standby control unit 23, one end of main control device control unit 23 is connected with one end of the main control unit 22, the other end
It is connected with the main control device interface 3, controls interacting between the main control device interface 2 and the main control unit 22；
On the one hand main control device control unit 23 receives the data of the transmission of main control device interface 3 and carries out protocol analysis sum to data
Change according to type, by the data is activation handled well to main control unit 22, the number on the other hand sending main control unit 22
According to framing is carried out, according to main control device interface protocol data is activation is carried out.
Control unit 2 also includes controlled device control unit 21, one end of controlled device control unit 21 and the main control
The other end connection of unit 22, that is to say, that main control unit 22 is connected to main control device control unit 23 and sets with controlled
Between standby control unit 21, main control device 11 is controlled by main control device control unit 23 and controlled device control unit 21
With controlled device 12.The other end of controlled device control unit 21 is connected with the controlled device interface 1, controls the quilt
Interacting between control equipment interface 1 and the main control unit 22, the one side of controlled device control unit 21 is by main control list
The order of unit 22 carries out framing, is transmitted according to controlled device interface protocol, the letter on the other hand sending controlled device
Number and data, protocol analysis and data type conversion are carried out, by the data is activation handled well to main control unit 22.
The Ethernet process part that the main control device control unit 23 is supported includes but is not limited to IEC61850-9-1,
The agreements such as IEC61850-9-2, IEC61850-9-2LE, IEC60044-8 and GOOSE, serial ports process part is supported different
The standard serial port communications protocol of baud rate, parameter can configure.
The controlled device control unit 21 can support GPIB standard communication protocols, can support using the order of SCPI grammers
Collection, to different instrument, it sends and receives order and has versatility.
Control unit 2 also includes synchronous control unit 24, one end of synchronous control unit 24 and the main control unit 22
Connection, the other end is connected with the sync cap 4, will provide to the master control from the external signal of the sync cap 4
Unit processed, the chip of the synchronous control unit is, for example, EP4CE55 etc.；
The command process of main control device control unit is followed by main control unit 22 data is activation of controlled device control unit
End, sends the order of main control device to controlled device；The data or command process of controlled device control unit are followed by simultaneously
To main control device control unit, send the data of controlled device or order to main control device.Main control unit 22 is processing life
When order or data, according to the synchronizing signal that synchronous control unit 24 is provided, process is synchronized to data or order,
Realize the synchronization of all data and order；Main unit processed can control synchronous signal receiver and the transmission of synchronizing signal control unit.
Synchronous control unit 24 to the synchronizing signal that main control unit 22 is provided is by being connected with synchronous control unit 24
Sync cap 4 is being input into.
Sync cap 4 in synchronous acquisition device 10 include outer synchronous input interface 42, the one of outer synchronous input interface 42
End is connected with external synchronization signal output interface, and the other end is connected with the synchronous control unit 24 in control unit 2, from it is outer together
Step signal output interface receives outer synchronous signal, provides to the synchronous control unit.
Sync cap 4 also includes main control device sync cap 43, and one end of main control device sync cap 43 sets with the master control
Standby 12 connection, the other end is connected with the synchronous control unit 24, the synchronizing signal that described control unit is produced is sent to
The main control device 12, for the synchronization between signal.
Sync cap 4 also includes controlled device sync cap 41, and one end of controlled device sync cap 41 controlled sets with described
Standby 11 connection, the other end is connected with the synchronous control unit 24, the synchronizing signal that described control unit is produced is sent to
The controlled device, for the synchronization between signal.
One end of synchronous control unit 24 respectively with outer synchronous input interface, controlled device sync cap 41, main control device
Sync cap 43 is connected, and the other end is connected with main control unit 22.For by outer synchronous input signal (including pulse per second (PPS)
Signal, IRIG-B codes etc.) processed after, be sent to main control unit, be main control unit 22 provide synchronizing signal,
Here synchronizing signal is mainly provided when the synchronization of data acquisition is proceeded by certain specific moment to main control unit 22
Between information, main control unit 22 starts from described controlled to set according to the synchronizing signal control main control device for receiving at the moment of regulation
Standby gathered data；And the control according to main control unit 22 is required, to controlled device sync cap 1 and main control device synchronization
Interface 3 sends different types of synchronizing signal (including pps pulse per second signal, IRIG-B codes etc.), for synchronous controlled device and
The data sampling of main control device and transmitting-receiving.
Controlled device sync cap and the synchronizing signal of main control device sync cap output have two sources, and one is internal system
The interior synchronizing signal produced on the basis of source, another kind is the external synchronization signal produced on the basis of outer synchronous signal.It is wherein interior
It is synchronous be used for need not with external equipment Complete Synchronization when use, produced using the high accuracy real-time clock inside harvester
Synchronizing signal, is sent to controlled device sync cap and main control device is same through synchronizing signal protocol conversion in the case of necessary
Step interface.External synchronization signal is the synchronizing signal that external sync equipment (such as GPS) is produced, for high-precision calibration test
Deng the occasion required with external equipment stringent synchronization.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that this
Invention is not limited to specific embodiment described here, and various obvious changes, weight can be carried out for a person skilled in the art
New adjustment and replacement are without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
More other Equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (11)
1. a kind of real-time synchronization data acquisition unit, including：
Main control device interface, is connected with the main control device of gathered data；
Controlled device interface, is connected with the controlled device of data to be collected；
Control unit, is connected between the main control device interface and the controlled device interface, control the main control device from
The controlled device synchronous acquisition；
Sync cap, is connected with described control unit, wherein
Described control unit is according to the synchronizing signal received from the sync cap by the main control device interface and described
Controlled device interface controls respectively the main control device with the controlled device.
2. synchronous data collection device according to claim 1, wherein described control unit includes：
Main control unit；
Main control device control unit, one end is connected with one end of the main control unit, the main control device control unit it is another
One end is connected with the main control device interface, controls interacting between the main control device interface and the main control unit；
Controlled device control unit, one end is connected with the other end of the main control unit, and controlled device control unit
The other end is connected with the controlled device interface, controls interacting between the controlled device interface and the main control unit；
Synchronous control unit, one end is connected with the main control unit, and the other end is connected with the sync cap, will be from institute
The external signal for stating sync cap is provided to the main control unit；
The signal that the main control unit is provided according to the synchronous control unit is to the main control device control unit and described
Controlled device control unit is controlled, and then controls the main control device and the controlled device.
3. synchronous data collection device according to claim 2, the main control unit is according to the synchronous control unit
The signal of offer the main control device control unit and the controlled device control unit are controlled including：
The main control unit will be sent to the controlled device after the data and command process of the main control device control unit
Control unit, by the order of the main control device controlled device is sent to；
The controlled unit will be sent to the main control device after the data and command process of the controlled device control unit
Control unit, by the order of the controlled device main control device is sent to.
4. synchronous data collection device according to claim 2, wherein the main control device control unit controls the master
Control equipment interface and the main control unit interact including：
The main control device control unit receives the data that the main control device interface sends, and data are carried out protocol analysis and
Data type dress is changed, and by the data is activation handled well the main control unit is given；
The data that the main control device control unit sends the main control unit carry out framing, assist according to main control device interface
View carries out data is activation.
5. synchronous data collection device according to claim 2, wherein the controlled device control unit controls the quilt
Control equipment interface and the main control unit interact including：
The controlled device control unit receives the data that the controlled device interface sends, and data are carried out protocol analysis and
Data type dress is changed, and by the data is activation handled well the main control unit is given；
The data that the controlled device control unit sends the main control unit carry out framing, assist according to controlled device interface
View carries out data is activation.
6. real-time synchronization data acquisition unit according to claim 2, wherein the sync cap includes：
Outer synchronous input interface, one end is connected with external synchronization signal output interface, and one end is connected with the synchronous control unit, its from
External synchronization signal output interface receives outer synchronous signal and provides to the synchronous control unit；
Main control device sync cap, one end is connected with the main control device, and the other end is connected with the synchronous control unit, will
The synchronizing signal that described control unit is produced is sent to the main control device for the synchronization between signal；
Controlled device sync cap, one end is connected with the controlled device, and the other end is connected with the synchronous control unit, will
The synchronizing signal that described control unit is produced is sent to the controlled device for the synchronization between signal.
7. the synchronizing signal that real-time synchronization data acquisition unit according to claim 6, wherein described control unit are produced
Produce including the interior synchronizing signal produced on the basis of the inside sources of the harvester and on the basis of outer synchronous signal
External synchronization signal.
8. real-time synchronization data acquisition unit according to claim 6, wherein the synchronous control unit is according to the master
The control of control unit is required, different types of to the controlled device sync cap and main control device sync cap transmission
Synchronizing signal, makes the controlled device and main control device synchronization.
9. according to arbitrary described real-time synchronization data acquisition unit in claim 1-8, wherein the form of the sync cap
Including optical interface and electrical interface, the optical interface includes ST interfaces, and the electrical interface includes coaxial cable interface.
10. according to arbitrary described real-time synchronization data acquisition unit in claim 1-8, wherein the main control device interface
Form include optical interface and electrical interface, the optical interface includes ST interfaces, FC interfaces, SC interfaces, the electrical interface bag
Include Ethernet interface, serial interface.
11. according to arbitrary described real-time synchronization data acquisition unit in claim 1-8, wherein the controlled device interface
Form include gpib interface, USB interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510761162.1A CN106681179A (en) | 2015-11-10 | 2015-11-10 | Real-time synchronization data acquisition device |
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| CN201510761162.1A CN106681179A (en) | 2015-11-10 | 2015-11-10 | Real-time synchronization data acquisition device |
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