CN204302410U - The automatic measuring and analysing meter of a kind of intelligent wave shape parameter - Google Patents
The automatic measuring and analysing meter of a kind of intelligent wave shape parameter Download PDFInfo
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- CN204302410U CN204302410U CN201420762081.4U CN201420762081U CN204302410U CN 204302410 U CN204302410 U CN 204302410U CN 201420762081 U CN201420762081 U CN 201420762081U CN 204302410 U CN204302410 U CN 204302410U
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Abstract
The automatic measuring and analysing meter of a kind of intelligent wave shape parameter, comprises signal input circuit, signal conditioning circuit, A/D change-over circuit, fpga logic control circuit, DSP operational analysis circuit, serial ports RS-232 telecommunication circuit, display circuit, power circuit and clock circuit.Compared with prior art, the beneficial effects of the utility model are: this instrument have employed the backlight large screen color liquid crystal display of international popular, utilize the sample circuit of high-speed, high precision, advanced Digital Signal Processing, and subspace pattern recognition method, digital filtering, FFT, waveform computing can be used and compare, waveform parameter analytic function that windowing etc. is powerful, automatically carry out spectrum analysis, waveform parameter analysis, and the waveform automatically tested is shown in real time.
Description
Technical field
The utility model relates to the automatic measuring and analysing meter of a kind of intelligent wave shape parameter, belongs to automatic test field.
Background technology
In automatic test field, usually need the voltage of some characteristic points or the waveform characteristic of electric current of understanding circuit, determine the duty of characteristic point with this.By its waveform parameter of testing and analysis, the ruuning situation etc. of equipment can be understood.Method of testing in the past, is the voltage or the current waveform that utilize oscillograph observation test point place, and records its Wave data, then make comparisons with the Wave data under artificial method and normal condition, to determine the duty character at this test point place.But its degree of accuracy of the method for this manual testing is poor, and some transient processes of test point are also not easily found, and the repeatability of test is also bad.
Summary of the invention
The purpose of this utility model is to provide a kind of waveform parameter measuring and analysing meter of Novel intelligent integrating high speed acquisition, control, storage, display, analytic function.
For achieving the above object, the utility model realizes by the following technical solutions:
The automatic measuring and analysing meter of a kind of intelligent wave shape parameter, comprise signal input circuit, signal conditioning circuit, A/D change-over circuit, display circuit, power circuit and clock circuit, it is characterized in that: in circuit, be also provided with independently fpga logic control circuit, DSP operational analysis circuit and serial ports RS-232 telecommunication circuit; Signal input circuit, is connected with A/D change-over circuit by signal conditioning circuit, and fpga logic control circuit is connected with clock circuit, A/D change-over circuit, DSP operational analysis circuit respectively; DSP operational analysis circuit is connected with display circuit by serial ports RS-232 telecommunication circuit; A/D change-over circuit, fpga logic control circuit, serial ports RS-232 telecommunication circuit, display circuit, power circuit are all connected with DSP operational analysis circuit with clock circuit.
Described fpga logic control circuit, DSP operational analysis circuit have digital signal processing function, waveform parameter analytic function, high accuracy analysis can be made to signal time domain specification, frequency domain characteristic and correlation properties, and to the random waveform energy real-time testing automatically gathered, use subspace pattern recognition method, digital filtering, FFT, waveform computing and compare, analytic function that windowing etc. is powerful, automatically carry out spectrum analysis, waveform parameter analysis, automatic test waveform is shown in real time.
This measuring and analysing meter can pass through RS-232 interface, carries out data communication with computer.
Compared with prior art, the beneficial effects of the utility model are:
The automatic measuring and analysing meter of intelligent wave shape parameter of the present utility model is a kind of brand new digital tester being different from traditional measuring instrument.What this measuring and analysing meter adopted is the backlight large screen color liquid crystal display of international popular, advanced Digital Signal Processing, powerful waveform parameter analytic function, can to signal time domain specification, frequency domain characteristic and correlation properties make high accuracy analysis, and to the random waveform energy real-time testing automatically gathered, use subspace pattern recognition method, digital filtering, FFT, waveform computing and comparing, the analytic function that windowing etc. are powerful, automatically spectrum analysis is carried out, waveform parameter is analyzed, automatic test waveform is shown in real time, waveform parameter analysis result shows in real time, achieve and real-time analysis monitoring is carried out to the duty character of circuit.
This instrument is a kind of novel high-performance electron electric power waveform parameter test analytical instrument integrating high speed acquisition, control, storage, display, analytic function, has higher practical value and application prospect.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further described:
As shown in Figure 1, the automatic measuring and analysing meter of intelligent wave shape parameter of the present utility model, comprises signal input circuit, signal conditioning circuit, A/D change-over circuit, fpga logic control circuit, DSP operational analysis circuit, serial ports RS-232 telecommunication circuit, display circuit, power circuit and clock circuit.
Described signal input circuit, be connected with A/D change-over circuit by signal conditioning circuit, fpga logic control circuit is connected with clock circuit, A/D change-over circuit, DSP operational analysis circuit respectively, and DSP operational analysis circuit is connected with display circuit by serial ports RS-232 telecommunication circuit; A/D change-over circuit, fpga logic control circuit, serial ports 232 telecommunication circuit, display circuit, power circuit are all connected with DSP operational analysis circuit with clock circuit.Instrument has RS-232 interface, realizes connecting machine communication with computer by data wire.
Signal conditioning circuit is made up of frequency overlapped-resistable filter, amplifier buffer circuit, signal amplification circuit etc.A/D change-over circuit is changed special chip ADS7656 by A/D and is formed.AD7656 is high integration, 6 passages, 16bit Approach by inchmeal (SAR) type ADC, it has the sample rate that maximum 4LSBS INL and every passage reach 250kSPS, has iCMOS (industrial CMOS) technique fpga logic control circuit chip EP3C10E144I7N and has powerful controlling functions.Dsp chip TMS320F28335PGFA is as the core parts calculating, analyze in this automatically measuring and analysing meter.Serial ports RS-232 telecommunication circuit by: communication dedicated chip MAX232 forms.Display circuit by: color liquid crystal giant-screen forms.Display test waveform parameter is in real time realized by serial port and dsp chip serial communication work
The utility model operationally, signal is successively through signal input circuit, signal conditioning circuit enters A/D change-over circuit, then binary digital information is converted the signal into by A/D change-over circuit, fpga logic decoded signal is as A/D control signal, control A/D change-over circuit is carried out using the real time data after Collect conversion as computational analysis basis to sampling time sequence, deliver to DSP operational analysis circuit, be used for carrying out computing to gathering the digital information come, analyze, DSP operational analysis circuit is by its computing, data result after analysis is under fpga logic control circuit controls, by serial ports RS-232 telecommunication circuit, real-time transmission is delivered in display circuit and is shown, clock circuit provides time reference for whole circuit, the logic control function that wherein fpga logic control circuit is powerful, achieve and control and coordinate DSP, ADC, data between LCD and the transmission of control signal, process, display.
Be only general principle of the present utility model above, not impose any restrictions the utility model, every foundation the utility model carries out equivalent variations and modification to it, all within the category of the art of this patent protection scheme.
Claims (2)
1. the automatic measuring and analysing meter of intelligent wave shape parameter, comprise signal input circuit, signal conditioning circuit, A/D change-over circuit, display circuit, power circuit and clock circuit, it is characterized in that: in circuit, be also provided with independently fpga logic control circuit, DSP operational analysis circuit and serial ports RS-232 telecommunication circuit; Signal input circuit, is connected with A/D change-over circuit by signal conditioning circuit, and fpga logic control circuit is connected with clock circuit, A/D change-over circuit, DSP operational analysis circuit respectively; DSP operational analysis circuit is connected with display circuit by serial ports RS-232 telecommunication circuit; A/D change-over circuit, fpga logic control circuit, serial ports RS-232 telecommunication circuit, display circuit, power circuit are all connected with DSP operational analysis circuit with clock circuit.
2. intelligent wave shape parameter measuring and analysing meter according to claim 1, it is characterized in that: described fpga logic control circuit, DSP operational analysis circuit has digital signal processing function, waveform parameter analytic function, can to signal time domain specification, frequency domain characteristic and correlation properties make high accuracy analysis, and to the random waveform energy real-time testing automatically gathered, use subspace pattern recognition method, digital filtering, FFT, waveform computing and comparing, the analytic function that windowing etc. are powerful, automatically spectrum analysis is carried out, waveform parameter is analyzed, automatic test waveform is shown in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420762081.4U CN204302410U (en) | 2014-12-05 | 2014-12-05 | The automatic measuring and analysing meter of a kind of intelligent wave shape parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420762081.4U CN204302410U (en) | 2014-12-05 | 2014-12-05 | The automatic measuring and analysing meter of a kind of intelligent wave shape parameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204302410U true CN204302410U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420762081.4U Expired - Fee Related CN204302410U (en) | 2014-12-05 | 2014-12-05 | The automatic measuring and analysing meter of a kind of intelligent wave shape parameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204302410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203821A (en) * | 2015-09-24 | 2015-12-30 | 浪潮(北京)电子信息产业有限公司 | Method and device for analyzing reference clock phase jitter |
| CN108107321A (en) * | 2017-12-14 | 2018-06-01 | 科大智能电气技术有限公司 | A kind of electric power system fault waveform comparison method |
-
2014
- 2014-12-05 CN CN201420762081.4U patent/CN204302410U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203821A (en) * | 2015-09-24 | 2015-12-30 | 浪潮(北京)电子信息产业有限公司 | Method and device for analyzing reference clock phase jitter |
| CN105203821B (en) * | 2015-09-24 | 2018-03-20 | 浪潮(北京)电子信息产业有限公司 | A kind of method and device analyzed reference clock phase jitter |
| CN108107321A (en) * | 2017-12-14 | 2018-06-01 | 科大智能电气技术有限公司 | A kind of electric power system fault waveform comparison method |
| CN108107321B (en) * | 2017-12-14 | 2020-03-17 | 科大智能电气技术有限公司 | Fault waveform comparison method for power system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 114051, Liaoning, Anshan MTR Eastern Science and technology road, No. 108 Patentee after: Monternet Rongxin Technology Group Limited by Share Ltd Address before: 114051 Anshan high tech Zone, Liaoning province science and technology road, No. 108 Patentee before: Rongxin Power Electronic Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20201205 |