CN1794141A - Manufacturing method of PCI Express data collection card - Google Patents
Manufacturing method of PCI Express data collection card Download PDFInfo
- Publication number
- CN1794141A CN1794141A CN 200510022521 CN200510022521A CN1794141A CN 1794141 A CN1794141 A CN 1794141A CN 200510022521 CN200510022521 CN 200510022521 CN 200510022521 A CN200510022521 A CN 200510022521A CN 1794141 A CN1794141 A CN 1794141A
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- CN
- China
- Prior art keywords
- digital signal
- pci express
- processing module
- signal processing
- express data
- Prior art date
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Abstract
A method for preparing PCI Express data collection card includes obtaining digital signal by converting external analog signal with A/ D conversion module, storing digital signal in RAM storage after it is processed by digital signal processing module, delivering external digital signal directly to digital signal processing module and storing it in RAM storage then delivering required result to computer for processing through PCI Express bus.
Description
Technical field
The present invention is a kind of method for making of PCI Express data collecting card, and it adopts PCI Express interface to be connected with computing machine, realizes the high speed acquisition of digital and analog signaling.And can carry out pre-service to signal, take less computer resource.
Background technology
High-speed data acquisition card in the market has many defectives or weak point: some adopts a large amount of RAM storage data, and is with high costs; It is few that some handles way, only can support several roads.Also some processing speed is not real-time.
Along with the develop rapidly of computing machine, its processing speed and interface rate are also more and more faster.Therefore directly utilize it to carry out high-speed data acquisition and become possibility.But the general calculation machine does not provide external analog and digital channel.
Summary of the invention
For above purpose, the invention provides a kind of method for making of PCI Express data collecting card, after being changed through the A/D modular converter, simulating signal obtains digital signal, and described digital signal is deposited in the memory RAM through digital signal processing module; External digital signal is directly given digital signal processing module, and stores in the memory RAM, gives Computer Processing with required result via PCI Express bus then.Make like this, the dirigibility that has improved structure has stronger versatility again, is suitable for secondary development, and system is easy to safeguard.User's use cost is reduced, can realize large-area popularization.
Description of drawings
In claims of present patent application, pointed out theme of the present invention particularly, and clearly it has been proposed patent protection.Yet with reference to following detailed description and accompanying drawing, relevant structure that can better understand the present invention and implementation method with and purpose, feature and advantage.
Accompanying drawing is a system principle diagram of the present invention;
Embodiment
In the following detailed description, having described specific details comprehensively understands the present invention so that provide.Yet the professional and technical personnel will appreciate that the present invention also can implement with other similar details.
The present invention is made up of A/D modular converter, digital signal processing module, RAM and PCI Express interface module.External analog signal obtains digital signal after changing through the A/D modular converter, and described digital signal is deposited in the memory RAM through digital signal processing module; External digital signal is directly given digital signal processing module, and stores in the memory RAM, gives Computer Processing with required result via PCI Express bus then.Because the high speed data transfer ability of PCI Experss, make that used RAM can be very little in the native system, only need as metadata cache.
The present invention has real-time, and structure is flexible, and highly versatile is suitable for the scale design.Simultaneously can provide API and remote network interfaces, be convenient to secondary development, be suitable for various data acquisition equipments.
Though herein declarative description certain this feature of the present invention and a kind of implementation method, for the professional and technical personnel, many modifications, replacement, variation and equivalent substitution will appear.Therefore, protection scope of the present invention is as the criterion by the scope of appended claim.
Claims (2)
1. the method for making of a PCI Express data collecting card, it is characterized in that method for making may further comprise the steps: obtain digital signal after external analog signal is changed through the A/D modular converter, described digital signal is deposited in the memory RAM through digital signal processing module; External digital signal is directly given digital signal processing module, and stores in the memory RAM, gives Computer Processing with required result via PCI Express bus then.
2. according to claims 1 described a kind of PCI Express data collecting card, it is characterized in that: its digital signal processing module adopts FPGA to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510022521 CN1794141A (en) | 2005-12-22 | 2005-12-22 | Manufacturing method of PCI Express data collection card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510022521 CN1794141A (en) | 2005-12-22 | 2005-12-22 | Manufacturing method of PCI Express data collection card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1794141A true CN1794141A (en) | 2006-06-28 |
Family
ID=36805635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510022521 Pending CN1794141A (en) | 2005-12-22 | 2005-12-22 | Manufacturing method of PCI Express data collection card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1794141A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009049546A1 (en) * | 2007-10-19 | 2009-04-23 | Huawei Technologies Co., Ltd. | Solid-state hard disk controller circuit and solid-state hard disk |
| CN101887401A (en) * | 2010-06-24 | 2010-11-17 | 苏州飞鱼星电子技术有限公司 | Apparatus for acquiring and storing high speed data in real time |
| CN102662604A (en) * | 2012-03-06 | 2012-09-12 | 中国科学技术大学 | High speed data collection card for magnetic resonance system |
-
2005
- 2005-12-22 CN CN 200510022521 patent/CN1794141A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009049546A1 (en) * | 2007-10-19 | 2009-04-23 | Huawei Technologies Co., Ltd. | Solid-state hard disk controller circuit and solid-state hard disk |
| CN101887401A (en) * | 2010-06-24 | 2010-11-17 | 苏州飞鱼星电子技术有限公司 | Apparatus for acquiring and storing high speed data in real time |
| CN102662604A (en) * | 2012-03-06 | 2012-09-12 | 中国科学技术大学 | High speed data collection card for magnetic resonance system |
| CN102662604B (en) * | 2012-03-06 | 2015-06-24 | 中国科学技术大学 | High speed data collection card for magnetic resonance system |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |