CN104268300A - Multifunctional data acquisition system - Google Patents
Multifunctional data acquisition system Download PDFInfo
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- CN104268300A CN104268300A CN201410480641.1A CN201410480641A CN104268300A CN 104268300 A CN104268300 A CN 104268300A CN 201410480641 A CN201410480641 A CN 201410480641A CN 104268300 A CN104268300 A CN 104268300A
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- acquisition system
- fpga
- data acquisition
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- usb port
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Abstract
The invention provides a multifunctional data acquisition system and relates to an acquisition system, in particular to a multifunctional data acquisition system based on a USB port. The multifunctional data acquisition system consists of a differential driver, an ADC, an FPGA, a clock chip, a microcontroller with a USB port, a power circuit and a debugging expansion interface, supports four analog signal inputs and performs sampling through the high-speed ADC, processes digitized data through the FPGA, and can achieve waveform sampling, pulse counting, multi-pulse amplitude analysis, charge distribution method signal reading and other functions. Lower computer hardware and a PC are communicated through the USB port, and upper computer software performs writing through Labview, is responsible for hardware initialization and parameter configuration, reads acquired data and performs online data processing and real-time result displaying.
Description
Technical field
The present invention relates to a kind of acquisition system, be specifically related to a kind of more Function Data Collect System based on USB interface.
Background technology
In the project of some nuclear electronics, different demands is had: have plenty of direct collection signal waveform to the collection of signal, have plenty of and the amplitude spectrum of signal is analyzed, also have plenty of and synchronous acquisition is carried out to 2 road signals, and calculate particle incoming position according to the Amplitude Ratio of signal.If the instrument of the standard of employing, then each project all needs to be equipped with different instruments, as oscillograph, multichannel analyzer etc.In order to meet the different needs, this work proposes a set of more Function Data Collect System based on USB interface of meter.
Summary of the invention
The present invention aims to provide a kind of more Function Data Collect System based on USB interface.
Technical program of the present invention lies in:
A kind of more Function Data Collect System, native system is made up of the microcontroller of differential driver, ADC, FPGA, clock chip, band USB interface, power circuit and debugging, expansion interface.
Preferably, described ADC chip is AD9521.
Preferably, described fpga chip is EP3C55.
Preferably, described clock chip adopts LMK03001 precision interval clock chip.
Preferably, described debugging, expansion interface circuit adopt CY7C68013.
Technique effect of the present invention is:
This system supports 4 tunnel simulating signal inputs, and sampled by high-speed ADC, the data after digitizing, by FPGA process, can realize the functions such as waveform sampling, step-by-step counting, multichannel pulse amplitude analysis, the reading of Charge Division Method signal.Lower computer hardware and PC are by USB interface communication, and upper computer software adopts Labview to write, and is responsible for initiating hardware and parameter configuration, read image data and carry out the real-time display of On-line data processing and result.
Accompanying drawing explanation
Fig. 1 is present system structured flowchart.
Embodiment
A kind of more Function Data Collect System, native system is made up of the microcontroller of differential driver, ADC, FPGA, clock chip, band USB interface, power circuit and debugging, expansion interface.Described ADC chip is AD9521.Described fpga chip is EP3C55.Described clock chip adopts LMK03001 precision interval clock chip.Described debugging, expansion interface circuit adopt CY7C68013.Whole system power supply used is+5V voltage.
USB drive adopt the Quick that provides of Bitwise company ?USB firmware, this firmware utilizes the IO of CY7C68013 to define an external bus, and user only need call corresponding API function in Driver Library in host computer PC just can initiate the read-write operation of order or data to bus.And FPGA is equivalent to one of this bus from equipment, user need design the read-write that an interface logic carrys out response bus in FPGA, thus realizes the function being read FPGA internal register, FIFO and RAM by USB.In addition, this firmware also achieves the function being configured FPGA by PS pattern.
The data stream of simulating signal after ADC sampling of four-way directly delivers to FPGA, is realized the algorithm of various data processing by FPGA.According to the demand of different application, different data processing algorithms can be realized in FPGA, there is very large dirigibility.In research herein, achieve the function such as signal reading of waveform acquisition, step-by-step counting, pulse height multi-channel analysis, position sensitive detector.
Claims (5)
1. a more Function Data Collect System, is characterized in that: native system is made up of the microcontroller of differential driver, ADC, FPGA, clock chip, band USB interface, power circuit and debugging, expansion interface.
2. as claim 1 more Function Data Collect System, it is characterized in that: described ADC chip is AD9521.
3. as claim 1 more Function Data Collect System, it is characterized in that: described fpga chip is EP3C55.
4. as claim 1 more Function Data Collect System, it is characterized in that: described clock chip adopts LMK03001 precision interval clock chip.
5. as claim 1 more Function Data Collect System, it is characterized in that: described debugging, expansion interface circuit adopt CY7C68013.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480641.1A CN104268300A (en) | 2014-09-19 | 2014-09-19 | Multifunctional data acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480641.1A CN104268300A (en) | 2014-09-19 | 2014-09-19 | Multifunctional data acquisition system |
Publications (1)
| Publication Number | Publication Date |
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| CN104268300A true CN104268300A (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410480641.1A Pending CN104268300A (en) | 2014-09-19 | 2014-09-19 | Multifunctional data acquisition system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767528A (en) * | 2015-04-22 | 2015-07-08 | 四川正冠科技有限公司 | PPM ADC difference sampling system |
| CN104779953A (en) * | 2015-03-30 | 2015-07-15 | 苏州固基电子科技有限公司 | Single-ended signal converting device |
| CN106340174A (en) * | 2016-11-04 | 2017-01-18 | 合肥天讯亿达光电技术有限公司 | Four-channel high-speed data acquisition control system |
| CN107817512A (en) * | 2017-03-31 | 2018-03-20 | 江苏天瑞仪器股份有限公司 | A kind of hardware circuit design method of digital multichannel pulse scope-analyzer |
| CN107817513A (en) * | 2017-03-31 | 2018-03-20 | 江苏天瑞仪器股份有限公司 | The hardware circuit design of digital multichannel pulse scope-analyzer |
-
2014
- 2014-09-19 CN CN201410480641.1A patent/CN104268300A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779953A (en) * | 2015-03-30 | 2015-07-15 | 苏州固基电子科技有限公司 | Single-ended signal converting device |
| CN104767528A (en) * | 2015-04-22 | 2015-07-08 | 四川正冠科技有限公司 | PPM ADC difference sampling system |
| CN106340174A (en) * | 2016-11-04 | 2017-01-18 | 合肥天讯亿达光电技术有限公司 | Four-channel high-speed data acquisition control system |
| CN107817512A (en) * | 2017-03-31 | 2018-03-20 | 江苏天瑞仪器股份有限公司 | A kind of hardware circuit design method of digital multichannel pulse scope-analyzer |
| CN107817513A (en) * | 2017-03-31 | 2018-03-20 | 江苏天瑞仪器股份有限公司 | The hardware circuit design of digital multichannel pulse scope-analyzer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |
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| WD01 | Invention patent application deemed withdrawn after publication |