CN105044419A - Virtual network oscilloscope based on FPGA - Google Patents
Virtual network oscilloscope based on FPGA Download PDFInfo
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- CN105044419A CN105044419A CN201510534137.XA CN201510534137A CN105044419A CN 105044419 A CN105044419 A CN 105044419A CN 201510534137 A CN201510534137 A CN 201510534137A CN 105044419 A CN105044419 A CN 105044419A
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Abstract
The invention especially relates to a virtual network oscilloscope based on a FPGA. The virtual network oscilloscope based on the FPGA comprises a signal acquisition circuit, a FPGA signal processing unit, a network interface, a server and a shared PC. The signal acquisition circuit collects a circuit board voltage signal. The collected circuit board voltage signal is transmitted to the server through the FPGA signal processing unit and a network switching circuit. The shared PC can realize waveform sharing through accessing the server. And a purpose that multiple users carry out simultaneous debugging or long-distance debugging through the multiple shared PC is realized. By using the virtual network oscilloscope based on the FPGA, a processing speed is fast, precision is high and a fidelity of a generated waveform is high; technical personnel can remotely logs in the server through the shared PC, checks the waveform in real time, communicates with on-site personnel in real time and provides a modification opinion so that real-time offsite cooperation debugging is reached; company personnel operation efficiency and debugging efficiency are greatly improved and product launching is accelerated.
Description
Technical field
The present invention relates to signal transacting and network communication technology field, particularly a kind of virtual network oscillograph based on FPGA.
Background technology
Along with the development of electron trade, domesticly there is increasing electronics corporation.And before electron trade launch, need through a large amount of debugging, wherein the most key is exactly the waveform testing of circuit board.
Usual circuit board adopts traditional oscillograph, and carry out waveform measurement, this method effectively cannot share data, make the observation waveform that the associate in strange land or expert also can be real-time, suggestion for revision is provided, can only operates by single separate unit oscillograph, inefficiency.
For traditional oscillograph debugging, data cannot share in different areas, and this problem of inefficiency, the present invention proposes a kind of virtual network oscillograph based on FPGA.Can should effectively solve data sharing problem based on the virtual network oscillograph of FPGA, and realize many people strange land and jointly debug, greatly can improve debugging efficiency.
FPGA(Field-ProgrammableGateArray), i.e. field programmable gate array, it is the product further developed on the basis of the programming devices such as PAL, GAL, CPLD.It occurs as a kind of semi-custom circuit in special IC (ASIC) field, has both solved the deficiency of custom circuit, overcomes again the shortcoming that original programming device gate circuit number is limited.
FPGA have employed logical cell array LCA(LogicCellArray) such concept, inside comprises configurable logic blocks CLB(ConfigurableLogicBlock), input/output module IOB(InputOutputBlock) and interconnector (Interconnect) three parts.Field programmable gate array (FPGA) is programming device, and as compared to conventional logic circuit and gate array (as PAL, GAL and CPLD device), FPGA has different structures.FPGA utilizes small-sized look-up table (16 × 1RAM) to realize combinational logic, each look-up table is connected to the input end of a d type flip flop, trigger drives other logical circuits again or drives I/O, thus constitute the basic logic unit module that not only can realize combination logic function but also can realize sequential logic function, these intermodules utilize metal connecting line to be connected to each other or are connected to I/O module.The logic of FPGA loads programming data by internally static storage cell and realizes, store value in a memory cell and determine connecting mode between the logic function of logical block and each module or between module and I/O, and the function finally determined achieved by FPGA, FPGA allows unlimited programming.
When powering up, data in EPROM are read in sheet by fpga chip programmes in RAM, and after having configured, FPGA enters duty.After power down, FPGA reverts to white tiles, and internal logic relation disappears, and therefore, FPGA can Reusability.The programming of FPGA need not be special FPGA programmable device, need only with general EPROM, PROM programmable device.When needs amendment FPGA function, only a slice EPROM need be changed.Like this, with a slice FPGA, different programming datas, can produce different circuit functions.Therefore, the use of FPGA is very flexible.
Summary of the invention
The present invention, in order to make up the defect of prior art, provides a kind of safety and stability, efficiently based on the virtual network oscillograph of FPGA.
The present invention is achieved through the following technical solutions:
A kind of virtual network oscillograph based on FPGA, it is characterized in that: comprise signal acquisition circuit, FPGA signal processing unit, network interface, server and shared PC, described signal acquisition circuit collecting circuit board voltage signal, the circuit board voltage signal collected is delivered to server by FPGA signal processing unit and network switch circuit, described shared PC by access services device can realize waveform share, and then realize many people by multiple stage share PC debug simultaneously or strange land debugging object.
Described FPGA signal processing unit carries out the screening of valid data, and converts the valid data filtered out to network signal, and by network signal by network switch mouth circuit, is delivered to server.
Described server adopts labview client to resolve the network signal received, and is become waveform, and the waveform fidelity obtained is high; The storage data of described server, can realize being shared by network, to reach the object of real time multi-human debugging or strange land debugging.
The invention has the beneficial effects as follows: should based on the virtual network oscillograph of FPGA, processing speed is fast, precision is high, and the waveform fidelity of generation is high, and technician is by shared PC telnet server, get final product real time inspection waveform, exchange in real time with field staff, suggestion for revision is provided, thus reach the debugging of real-time distributed collaborative, substantially increase associate to lead with efficiency and debugging efficiency, expedite product is gone on the market.
Accompanying drawing explanation
Accompanying drawing 1 is for the present invention is based on the virtual network oscillometric method schematic diagram of FPGA.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present invention, and below in conjunction with accompanying drawing, the present invention is described in detail.
Should based on the virtual network oscillograph of FPGA, comprise signal acquisition circuit, FPGA signal processing unit, network interface, server and shared PC, described signal acquisition circuit collecting circuit board voltage signal, the circuit board voltage signal collected is delivered to server by FPGA signal processing unit and network switch circuit, described shared PC by access services device can realize waveform share, and then realize many people by multiple stage share PC debug simultaneously or strange land debugging object.
Described FPGA signal processing unit carries out the screening of valid data, and converts the valid data filtered out to network signal, and by network signal by network switch mouth circuit, is delivered to server.
Described server adopts labview client to resolve the network signal received, and is become waveform, and the waveform fidelity obtained is high; The storage data of described server, can realize being shared by network, to reach the object of real time multi-human debugging or strange land debugging.
During actual use, be connected to by signal acquisition circuit on the electric signal of band survey, collecting circuit board voltage signal, the circuit board voltage signal through collecting delivers to FPGA signal processing unit.Described FPGA signal processing unit carries out the screening of valid data, and it is fast that FPGA signal processing unit has processing speed, the feature that precision is high.Then convert the valid data filtered out to network signal, and by network signal by network switch mouth circuit, be delivered to server.Labview client analytic signal in server is also become waveform, and waveform is presented on the labview virtual network oscillograph interface of server, and the fidelity of the waveform of server labview client display is very high.
After these waveforms generate, company technique personnel can by sharing PC telnet server, real time inspection waveform, exchange in real time with field staff, suggestion for revision is provided, thus reach the debugging of real-time distributed collaborative, substantially increase associate and lead with efficiency and debugging efficiency, expedite product is gone on the market.
Claims (3)
1. the virtual network oscillograph based on FPGA, it is characterized in that: comprise signal acquisition circuit, FPGA signal processing unit, network interface, server and shared PC, described signal acquisition circuit collecting circuit board voltage signal, the circuit board voltage signal collected is delivered to server by FPGA signal processing unit and network switch circuit, described shared PC by access services device can realize waveform share, and then realize many people by multiple stage share PC debug simultaneously or strange land debugging object.
2. the virtual network oscillograph based on FPGA according to claim 1, it is characterized in that: described FPGA signal processing unit carries out the screening of valid data, and convert the valid data filtered out to network signal, and by network signal by network switch mouth circuit, be delivered to server.
3. the virtual network oscillograph based on FPGA according to claim 1, is characterized in that: described server adopts labview client to resolve the network signal received, and is become waveform, and the waveform fidelity obtained is high; The storage data of described server, can realize being shared by network, to reach the object of real time multi-human debugging or strange land debugging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510534137.XA CN105044419A (en) | 2015-08-27 | 2015-08-27 | Virtual network oscilloscope based on FPGA |
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| CN201510534137.XA CN105044419A (en) | 2015-08-27 | 2015-08-27 | Virtual network oscilloscope based on FPGA |
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| CN105044419A true CN105044419A (en) | 2015-11-11 |
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| CN201510534137.XA Pending CN105044419A (en) | 2015-08-27 | 2015-08-27 | Virtual network oscilloscope based on FPGA |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106154036A (en) * | 2016-06-17 | 2016-11-23 | 上海交通大学 | Impulse waveform intelligence log analysis methodology and system |
| CN110457240A (en) * | 2019-08-15 | 2019-11-15 | 吉首大学 | A kind of data collection system and method for virtual oscilloscope |
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| US20110267037A1 (en) * | 2010-04-28 | 2011-11-03 | Hamid Kharrati | Multi-level triggering circuit |
| CN102411078A (en) * | 2011-12-07 | 2012-04-11 | 山东大学 | Portable digital storage oscilloscope (DSO) based on FPGA (Field-Programmable Gate Array) |
| CN202471791U (en) * | 2012-03-12 | 2012-10-03 | 滨州学院 | FPGA-based digital storage oscilloscope |
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Patent Citations (4)
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| CN101699437A (en) * | 2009-10-28 | 2010-04-28 | 深圳华为通信技术有限公司 | File sharing method and device |
| US20110267037A1 (en) * | 2010-04-28 | 2011-11-03 | Hamid Kharrati | Multi-level triggering circuit |
| CN102411078A (en) * | 2011-12-07 | 2012-04-11 | 山东大学 | Portable digital storage oscilloscope (DSO) based on FPGA (Field-Programmable Gate Array) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106154036A (en) * | 2016-06-17 | 2016-11-23 | 上海交通大学 | Impulse waveform intelligence log analysis methodology and system |
| CN110457240A (en) * | 2019-08-15 | 2019-11-15 | 吉首大学 | A kind of data collection system and method for virtual oscilloscope |
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Application publication date: 20151111 |