CN104199306A - Matlab-based data gathering system - Google Patents
Matlab-based data gathering system Download PDFInfo
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- CN104199306A CN104199306A CN201410426673.3A CN201410426673A CN104199306A CN 104199306 A CN104199306 A CN 104199306A CN 201410426673 A CN201410426673 A CN 201410426673A CN 104199306 A CN104199306 A CN 104199306A
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Abstract
The invention discloses a matlab-based data gathering system. The matlab-based data gathering system comprises a data gathering module, a database module and a matlab data analyzing module which are connected with each other, and the data gathering module is used for realizing a signal gathering function and comprises a sensor, a signal conditioning circuit, a data gathering card, and a PC machine for installing the data gathering card and matlab software; the database module is used for storing data acquired by the data gathering module in a file format; the matlab data analyzing module is used for reading data from the database module and analyzing the data, and the analysis comprises data frequency spectrum analysis and data power spectrum analysis. By means of said mode, the matlab-based data gathering system only uses the hardware resource of a computer and a matlab platform software developed data gathering and analyzing system, the structure is simple, the equipment amount is small, the agility is high, the cost is low, and the small and medium-sized centralized data gathering requirements are satisfied.
Description
Technical field
The present invention relates to information software field, particularly relate to a kind of data acquisition system (DAS) based on matlab.
Background technology
The main task of data acquisition system (DAS) to producing, the various parameters of testing ground gather as analog quantitys such as temperature, pressure, flow, displacements, convert the acceptable Serial No. of computing machine to, then enter computing machine, for different, need to do corresponding storage, processing, demonstration or printing by computing machine.In the every field of society, comprise scientific research and experimental study, data acquisition system (DAS) has irreplaceable effect, and data acquisition and processing (DAP) must be more timely, and work efficiency is just higher, and the economic benefit obtaining is just larger.The quality of data acquisition system (DAS) performance depends primarily on its precision and speed, and this data acquisition system (DAS) guarantees under the condition of precision again, also will improve as much as possible sample rate, with the requirement that meets Real-time Collection, processes and control in real time in real time.
Matlab is the exploitation of MatWorks company, the most popular, most widely used scientific engineering computing software in the world at present, it is widely used in the every profession and trades such as automatic control, mathematical operation, signal analysis, computer technology, image processing, financial analysis, space industry, auto industry, biomedical engineering, Language Processing and radar engineering, is also the main tool that domestic and international colleges and universities and research department carry out many scientific researches.Because it has powerful calculating and drawing function, a large amount of reliable and stable algorithms libraries and succinct programming language efficiently, become mathematical computations instrument aspect de facto standards.Data acquisition and the combination of Matlab platform software will be brought to great convenience to practical application.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of data acquisition system (DAS) based on matlab, be a kind of and utilize the hardware resource of computing machine itself and the data collection and analysis system of matlab platform software exploitation, simple in structure, equipment amount is little, dirigibility is high, cost is low, and the intensive data that can meet middle and small scale gathers requirement.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of data acquisition system (DAS) based on matlab is provided, comprise: interconnected data acquisition module, database module and matlab data analysis module, described data acquisition module is used for realizing signals collecting function, and it comprises interconnected sensor, signal conditioning circuit and data collecting card and described data collecting card is installed and the PC of matlab software; Described database module is for storing the data that data acquisition module obtains and saving as file; Described matlab data analysis module is used for from database module reading out data and to data analysis, and it comprises data spectrum analysis, data power analysis of spectrum.
In a preferred embodiment of the present invention, the described data acquisition system (DAS) based on matlab also comprises matlab graphic user interface.
In a preferred embodiment of the present invention, described data collecting card is sound card.
In a preferred embodiment of the present invention, described sound card has some.
The invention has the beneficial effects as follows: a kind of data acquisition system (DAS) based on matlab of the present invention, be a kind of and utilize the hardware resource of computing machine itself and sound signal collecting and the analytic system of matlab platform software exploitation, the realization of sound signal collecting function is that the simulating signal that the sound card in the pc machine of being controlled by matlab obtains sensor is converted to digital signal and is stored in database module, and signal analysis function is that the data that collect are carried out to spectrum analysis, data power analysis of spectrum.Feature simple in structure, that equipment amount is little, dirigibility is high, cost is low that this system has, the intensive data that can meet middle and small scale gathers requirement.
Accompanying drawing explanation
Fig. 1 is the structural framing figure of a kind of data acquisition system (DAS) based on matlab of the present invention.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of data acquisition system (DAS) based on matlab, comprise: interconnected data acquisition module, database module and matlab data analysis module, described data acquisition module is used for realizing signals collecting function, and it comprises interconnected sensor, signal conditioning circuit and data collecting card and described data collecting card is installed and the PC of matlab software; Described database module is for storing the data that data acquisition module obtains and saving as file; Described matlab data analysis module is used for from database module reading out data and to data analysis, and it comprises data spectrum analysis, data power analysis of spectrum.
Wherein, the described data acquisition system (DAS) based on matlab also comprises matlab graphic user interface, and this interface operation is convenient, and can carry out function expansion according to user's demand.
Described data collecting card is sound card, and sound card has become a standard configuration of multimedia computer, utilizes sound card sample and export, and does not just need to buy special capture card, can reduce the cost of development of virtual instrument.And described sound card has some, in same PC, can insert described some sound cards, form multichannel data acquisition system, this system has very large dirigibility.
System configuration process is: sound card is inserted in the PCI slot in PC, and sound card driver is installed, sensor, signal conditioning circuit and sound card are interconnected, this has just formed the hardware device of sound collection.In the data acquisition carrying at matlab, have the special operand function generating for sound card, this operand of initialization can be set up communicating by letter of matlab and sound card, and for creating sound card equipment object increase data acquisition channel and triggering mode.While carrying out data acquisition, by matlab graphic user interface, corresponding parameter is set and controls the triggering mode of the sample frequency of sound card, sampling time, signal I/O scope, sampling, sampling number according to store path etc.
The present invention has disclosed a kind of data acquisition system (DAS) based on matlab, be a kind of and utilize the hardware resource of computing machine itself and sound signal collecting and the analytic system of matlab platform software exploitation, the realization of sound signal collecting function is to control the sound card in pc machine by matlab, the simulating signal that sensor is obtained is converted to digital signal and is stored in database module, and signal analysis function is that the data that collect are carried out to spectrum analysis, data power analysis of spectrum.Feature simple in structure, that equipment amount is little, dirigibility is high, cost is low that this system has, the intensive data that can meet middle and small scale gathers requirement.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. the data acquisition system (DAS) based on matlab, it is characterized in that, comprise: interconnected data acquisition module, database module and matlab data analysis module, described data acquisition module is used for realizing signals collecting function, and it comprises interconnected sensor, signal conditioning circuit and data collecting card and described data collecting card is installed and the PC of matlab software; Described database module is for storing the data that data acquisition module obtains and saving as file; Described matlab data analysis module is used for from database module reading out data and to data analysis, and it comprises data spectrum analysis, data power analysis of spectrum.
2. the data acquisition system (DAS) based on matlab according to claim 1, is characterized in that, the described data acquisition system (DAS) based on matlab also comprises matlab graphic user interface.
3. the data acquisition system (DAS) based on matlab according to claim 1, is characterized in that, described data collecting card is sound card.
4. the data acquisition system (DAS) based on matlab according to claim 3, is characterized in that, described sound card has some.
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| CN201410426673.3A CN104199306A (en) | 2014-08-27 | 2014-08-27 | Matlab-based data gathering system |
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| CN201410426673.3A CN104199306A (en) | 2014-08-27 | 2014-08-27 | Matlab-based data gathering system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105137804A (en) * | 2015-08-21 | 2015-12-09 | 中国科学院上海技术物理研究所 | Laboratory simulation method for flight attitude disturbance |
| CN107340746A (en) * | 2017-09-05 | 2017-11-10 | 安徽婧文科技有限公司 | Ground Connection in Intelligent Building data acquisition and analysis system |
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| CN203012127U (en) * | 2013-01-24 | 2013-06-19 | 郑州大学 | Sound localization device |
| CN203100824U (en) * | 2012-12-14 | 2013-07-31 | 中国人民解放军第二炮兵工程大学 | Level measurement device based on standing sound wave method and audio card |
| CN103928065A (en) * | 2014-04-17 | 2014-07-16 | 中国人民解放军陆军军官学院 | Reactor internal component critical heat flux real-time monitoring method based on sonic sensor |
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| CN1624581A (en) * | 2004-12-07 | 2005-06-08 | 天津大学 | Imaging method and device of transmitting sound wave in solid or liquid |
| CN102102870A (en) * | 2011-01-14 | 2011-06-22 | 华北电力大学 | Furnace chamber ash-dirt subarea on-line monitoring device based on acoustic thermometry |
| CN203100824U (en) * | 2012-12-14 | 2013-07-31 | 中国人民解放军第二炮兵工程大学 | Level measurement device based on standing sound wave method and audio card |
| CN203012127U (en) * | 2013-01-24 | 2013-06-19 | 郑州大学 | Sound localization device |
| CN103928065A (en) * | 2014-04-17 | 2014-07-16 | 中国人民解放军陆军军官学院 | Reactor internal component critical heat flux real-time monitoring method based on sonic sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105137804A (en) * | 2015-08-21 | 2015-12-09 | 中国科学院上海技术物理研究所 | Laboratory simulation method for flight attitude disturbance |
| CN107340746A (en) * | 2017-09-05 | 2017-11-10 | 安徽婧文科技有限公司 | Ground Connection in Intelligent Building data acquisition and analysis system |
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Application publication date: 20141210 |