CN207123738U - A kind of arbitrarily signal generating device based on terminal fitting - Google Patents
A kind of arbitrarily signal generating device based on terminal fitting Download PDFInfo
- Publication number
- CN207123738U CN207123738U CN201721092115.3U CN201721092115U CN207123738U CN 207123738 U CN207123738 U CN 207123738U CN 201721092115 U CN201721092115 U CN 201721092115U CN 207123738 U CN207123738 U CN 207123738U
- Authority
- CN
- China
- Prior art keywords
- generating device
- terminal fitting
- signal generating
- serial port
- digital
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003139 buffering effect Effects 0.000 claims abstract description 15
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000004088 simulation Methods 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims 1
- 238000012545 processing Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000000872 buffer Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
The utility model embodiment discloses a kind of arbitrarily signal generating device based on terminal fitting, can export high-precision dynamic waveform for a long time.The utility model is included based on the arbitrarily signal generating device embodiment that terminal is fitted：Digital signal processor and digital analog converter；The digital signal processor connects terminal；The digital signal processor includes random access memory and dma controller；The random access memory sets two buffering areas；The dma controller connects the buffering area and the digital analog converter.
Description
Technical field
Signal generator field is the utility model is related to, more particularly to a kind of arbitrary signal based on terminal fitting occurs
Device.
Background technology
The development of power system particularly increasing wind-force, photovoltaic, divides along with the consideration being deteriorated to the quality of power supply
The low quality electricity generation system such as cloth, and such as disturbance of high ferro, electric automobile, energy storage to power network so as to acutely being disturbed
The research of dynamic distorted signal attracts attention all the more.Enter usually using voltage source, current source (signal generator is signal source)
The inspection work of row each quasi-instrument, meter, or the feature of research network system.But traditional source be generally only can be merely
Direct current or exchange and superposition harmonic wave are exported, is substantially inadequate for the power grid environment emulation under complex situations at this stage.By
This has derived the function signal generation apparatus more increasingly complex than conventional power source, may be generally referred to as arbitrarily signal generating device
(referred to as any source).This kind of special source can export the signal more increasingly complex than conventional power source, possess higher output band
Wide and dynamic property, and signal settling time, and still there is good output accuracy faster.
Current any source produces the numeral letter required for DAC using embedded microcontroller such as single-chip microcomputer, DSP
Number, such design can be restricted any source " any output " ability, specifically be mainly manifested in the total of institute's output waveform
In length.During using microcontroller to be fitted waveform, it will usually using RAM stored waveform data, then using hardware scanning ripple
Graphic data consigns to DAC again.But this mode can be limited to RAM size, the length of an output waveform is influenceed, can be caused
The output of aperiodic waveform is restricted.
Utility model content
The utility model embodiment discloses a kind of arbitrarily signal generating device based on terminal fitting, can export for a long time
High-precision dynamic waveform.
The utility model embodiment provides a kind of arbitrarily signal generating device based on terminal fitting, including：Data signal
Processor and digital analog converter；
The digital signal processor connects terminal；
The digital signal processor includes random access memory and dma controller；
The random access memory sets two buffering areas；
The dma controller connects the buffering area and the digital analog converter.
Preferably, the digital signal processor also includes serial port, and the serial port connects the dma controller
With the digital analog converter.
Preferably, the digital analog converter includes branch module；
The branch module includes reference voltage source chip, high-operational amplifier amplifier and two 16 digit weighted-voltage D/A converters；
One 16 digit weighted-voltage D/A converter connects reference voltage source chip, the serial port and the high-operational amplifier
Amplifier；
Another 16 digit weighted-voltage D/A converter connects the serial port and signal output part.
Preferably, the serial port has at least one.
Preferably, the number of the branch module is identical with the number of the serial port.
As can be seen from the above technical solutions, the utility model embodiment has advantages below：
The utility model embodiment, which provides a kind of arbitrarily signal generating device based on terminal fitting, to be included：At data signal
Manage device and digital analog converter；The digital signal processor connects terminal；The digital signal processor includes depositing at random
Access to memory and dma controller；The random access memory sets two buffering areas；The dma controller connection is described slow
Rush area and the digital analog converter.In the present embodiment, opened up by digital signal processor in random access memory
Two buffering areas, by way of alternate buffering by digital analog converter generate analog waveform signal realize it is continual
Output, can export high-precision dynamic waveform for a long time.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is an a kind of reality of the arbitrarily signal generating device based on terminal fitting provided in the utility model embodiment
Apply the structural representation of example；
Fig. 2 is a kind of output control of the arbitrarily signal generating device based on terminal fitting provided in the utility model embodiment
Flow chart processed；
Fig. 3 be the utility model embodiment in provide it is a kind of based on terminal fitting arbitrarily signal generating device another
The overall structure diagram of embodiment；
Fig. 4 is a kind of voltage power amplifier design figure provided in the utility model embodiment；
Fig. 5 is a kind of current amplification design drawing provided in the utility model embodiment.
Embodiment
The utility model embodiment discloses a kind of arbitrarily signal generating device based on terminal fitting, can export for a long time
High-precision dynamic waveform.
Referring to Fig. 1, a kind of arbitrarily signal generating device based on terminal fitting provided in the utility model embodiment
One embodiment includes：
Digital signal processor and digital analog converter；
Digital signal processor connects terminal；
Digital signal processor includes random access memory and dma controller；
Random access memory sets two buffering areas；
Dma controller connects the buffering area and the digital analog converter.
Further, digital signal processor also includes serial port, serial port connection dma controller and digital simulation
Converter.
Further, digital analog converter includes branch module；
The branch module includes reference voltage source chip, high-operational amplifier amplifier and two 16 digit weighted-voltage D/A converters；
One 16 digit weighted-voltage D/A converters connection reference voltage source chip, serial port and high-operational amplifier amplifier；
Another 16 digit weighted-voltage D/A converter connects serial port and signal output part.
Further, serial port has at least one, and such as Fig. 1, the serial port being connected with dma controller is 3, with string
The branch module of row port connection is 3, and branch module all includes reference voltage source chip such as ADR4530 in Fig. 1, high accuracy
Two AD5545 in amplifier amplifier such as OPA2277 and two 16 digit weighted-voltage D/A converter such as Fig. 1 in Fig. 1,16 digits
Reference voltage source chip such as ADR4530 in Fig. 1, the serial port be such as described in the AD5545 connections in Fig. 1 for weighted-voltage D/A converter
SPORT1 or SPORT2 or SPORT3 and the high-operational amplifier amplifier in Fig. 1；Another 16 digit weighted-voltage D/A converter connects
Corresponding serial port and signal output part..
Further, the number of the branch module is identical with the number of the serial port.
In the present embodiment, carried out by using computer mutual between waveform fitting, and computer and microcontroller
Communication-cooperation operates, and the resource for reducing microcontroller uses, and improves the length of single output waveform, it is possible to achieve when longer
Between aperiodic waveform output on yardstick, two bufferings are opened in random access memory by digital signal processor
Area, continual output is realized by digital analog converter generation analog waveform signal by way of alternate buffering, can
Export high-precision dynamic waveform for a long time.
A kind of one application examples of the arbitrarily signal generating device based on terminal fitting provided in the utility model embodiment
For：Such as Fig. 3, by computer fitting and generation discrete digital signal, and data signal is sent to by microcontroller by Ethernet
Device, digital analog converter (Digital to analog converter, DAC) generation analog signal is write by microcontroller,
Exported again through power amplification.The ethernet frame of Wave data uses custom protocol, and frame length is 11 word when using the output of 3 tunnels
Section.Frame data field definition of order is respectively：Point sequence number (2 byte), port number (1 byte), passage (2 byte X3).With per second 5
Ten thousand match points, the requirement of 3 tunnels output, baud rate 4.4Mbps, are sufficient for requiring using 100 m ethernet.It can use
In general home computer carrys out fitted signal, requires also otherwise varied to the minimalist configuration of computer with the raising of fitting points.
With the requirement of 50,000 match points per second, meet the performance in the generations of INTEL i3 six it is achieved that lower allocation of computer may
The fluency of multitask running in fit procedure can be influenceed.Ethernet uses the electric Ethernet of RJ45 specification interfaces, ether network control
Device processed must be 100,000,000 ranks.Embedded microcontroller is grasped using BF609 DSP serial ADI, and using UCOSIII multitasks
Make system.
Such as Fig. 2, work of the computer first to digital signal processor (Digital Signal Processing, DSP)
State, parameter carry out necessary setting, the gear of control output circuit, now digital signal processor (Digital Signal
Processing, DSP) setting must be returned to computer, and successfully instruction, whole system just can be performed down.Then, it is digital
Signal processor (Digital Signal Processing, DSP) opens a receiving thread and initially enters circular wait reception
Wave data.The data of one second are sent to digital signal processor (Digital Signal by computer successively
Processing, DSP), digital signal processor (Digital Signal Processing, DSP) deposits data deposit at random
After access to memory (random access memory, RAM), open another output thread and start DMA (Direct Memory
Access, direct memory access) high-velocity scanning random access memory (random access memory, RAM) address, and lead to
Cross synchronous serial interface SPORT (synchronous serial Port) and squeeze into discrete digital amount in DAC and exported.
Such as Fig. 1, digital signal processor (Digital Signal Processing, DSP) is in random access memory
Two block buffers are opened in (random access memory, RAM), are realized by way of alternate buffering continual defeated
Go out.After computer has sent the data of one second, continue to send the data of next second, digital signal processor (Digital
Signal Processing, DSP) data of next second are stored in another buffering area, now DMA (Direct Memory
Access, direct memory access) data of one second still in scanning.
Digital-to-analogue conversion uses 16bit DA5545 high-speed figures analog converter (Digital to analog
Converter, DAC), it is desirable to its settling time is short enough, to deal with high frequency aperiodic waveform.
Such as Fig. 4 and Fig. 5, for voltage output power amplification loop, high-amplification-factor and essence are provided using accurate amplifier
Close feedback element, reach the purpose of high pressure and power amplification by driving mosfet, and complete to bear by partial pressure feedback resistance
Feedback.Likewise, Current Output Power amplification also completes negative-feedback using high-precision sample resistance.
Detailed Jie has been carried out to a kind of arbitrarily signal generating device based on terminal fitting provided by the utility model above
Continue, for those of ordinary skill in the art, according to the thought of the utility model embodiment, in embodiment and using model
There will be changes are placed, in summary, this specification content should not be construed as to limitation of the present utility model.
Claims (5)
- A kind of 1. arbitrarily signal generating device based on terminal fitting, it is characterised in that including：Digital signal processor sum type matrix Intend converter；The digital signal processor connects terminal；The digital signal processor includes random access memory and dma controller；The random access memory sets two buffering areas；The dma controller connects the buffering area and the digital analog converter.
- 2. the arbitrarily signal generating device according to claim 1 based on terminal fitting, it is characterised in that the data signal Processor also includes serial port, and the serial port connects the dma controller and the digital analog converter.
- 3. the arbitrarily signal generating device according to claim 2 based on terminal fitting, it is characterised in that the digital simulation Converter includes branch module；The branch module includes reference voltage source chip, high-operational amplifier amplifier and two 16 digit weighted-voltage D/A converters；One 16 digit weighted-voltage D/A converter connects the reference voltage source chip, the serial port and high-operational amplifier amplification Device；Another 16 digit weighted-voltage D/A converter connects the serial port and signal output part.
- 4. the arbitrarily signal generating device according to claim 3 based on terminal fitting, it is characterised in that the serial port Have at least one.
- 5. the arbitrarily signal generating device according to claim 4 based on terminal fitting, it is characterised in that the branch module Number it is identical with the number of the serial port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721092115.3U CN207123738U (en) | 2017-08-29 | 2017-08-29 | A kind of arbitrarily signal generating device based on terminal fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721092115.3U CN207123738U (en) | 2017-08-29 | 2017-08-29 | A kind of arbitrarily signal generating device based on terminal fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207123738U true CN207123738U (en) | 2018-03-20 |
Family
ID=61602649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721092115.3U Active CN207123738U (en) | 2017-08-29 | 2017-08-29 | A kind of arbitrarily signal generating device based on terminal fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207123738U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561982A (en) * | 2017-08-29 | 2018-01-09 | 广东电网有限责任公司电力科学研究院 | A kind of arbitrarily signal generating device and its output control method based on terminal fitting |
| CN113608161A (en) * | 2021-08-02 | 2021-11-05 | 国网山东省电力公司营销服务中心(计量中心) | Cascadable AC and DC superimposed power supply |
-
2017
- 2017-08-29 CN CN201721092115.3U patent/CN207123738U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561982A (en) * | 2017-08-29 | 2018-01-09 | 广东电网有限责任公司电力科学研究院 | A kind of arbitrarily signal generating device and its output control method based on terminal fitting |
| CN113608161A (en) * | 2021-08-02 | 2021-11-05 | 国网山东省电力公司营销服务中心(计量中心) | Cascadable AC and DC superimposed power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107169244B (en) | An electromechanical-electromagnetic transient hybrid simulation interface system and method | |
| CN106844256B (en) | A Design Method of Internal Interface of Active Distribution Network Real-time Simulator Based on Multiple FPGAs | |
| CN207123738U (en) | A kind of arbitrarily signal generating device based on terminal fitting | |
| CN105162437B (en) | A kind of waveshape generating device and method | |
| CN112134713A (en) | Method and device for connecting intelligent network card and server | |
| CN107561982A (en) | A kind of arbitrarily signal generating device and its output control method based on terminal fitting | |
| CN112485516A (en) | Electric energy meter and non-intrusive load identification chip architecture | |
| CN203720258U (en) | High-speed synchronous data sampling device for voltage and current transient signals | |
| CN1180356C (en) | A Realization Method of Dual-Channel Shared Memory | |
| US20230178993A1 (en) | Systems and techniques for renewable energy generation | |
| CN106786766A (en) | A kind of method for improving wind-powered electricity generation maximum grid connection capacity based on P2G technologies | |
| CN103365234B (en) | The voltage controlled current signal generator of solar battery array simulator | |
| CN106897114B (en) | A digital-analog interface and its driving method of an FPGA-based real-time simulator | |
| CN203617787U (en) | Power scheduling system | |
| CN107422156A (en) | A kind of dynamic distortion power source based on high speed DMA fitting | |
| CN207182059U (en) | A kind of PLC control system | |
| CN212379837U (en) | A digital-analog interface circuit of real-time simulator for active distribution network based on FPGA | |
| CN112363001A (en) | High-precision metering method and system for platform area intelligent fusion terminal | |
| CN104468452B (en) | A kind of data transmission device based on OFDM | |
| CN207367474U (en) | Half full-scale investigation device of Wind turbines | |
| CN217282958U (en) | Test signal switching device for wind turbine generator system | |
| CN201060245Y (en) | SVC signal generating device | |
| CN110750889A (en) | Real-time simulator Ethernet communication device based on FPGA | |
| CN213689869U (en) | Load box for testing hydrogen energy generator | |
| CN116094169B (en) | A distribution network topology model generation method and terminal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |