CN103440162A - LABVIEW-based design of multifunctional sensor experiment system - Google Patents
LABVIEW-based design of multifunctional sensor experiment system Download PDFInfo
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- CN103440162A CN103440162A CN201310412575XA CN201310412575A CN103440162A CN 103440162 A CN103440162 A CN 103440162A CN 201310412575X A CN201310412575X A CN 201310412575XA CN 201310412575 A CN201310412575 A CN 201310412575A CN 103440162 A CN103440162 A CN 103440162A
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Abstract
A multifunctional sensor experiment box integrates various tested bodies and has the functions of a capacitive sensor, an inductive sensor, a photoelectric sensor, a hall sensor, an eddy current displacement sensor, a piezoresistive sensor, a piezoelectric sensor, a temperature sensor and the like. LABVIEW is a graphical programming language, and by virtue of the LABVIEW, a self-owned virtual instrument can be conveniently established, so that a convenient approach is provided for realization of an instrument programming and data acquiring system.
Description
Technical field
The field of the present invention relates to belongs to sensor technology, relates to specifically a kind of method for designing of the Multifunction Sensor experimental system based on LABVIEW.
Technical background
The Multifunction Sensor experimental box integrates various measured bodies, comprises capacitive transducer, inductance sensor. the functions such as photoelectric sensor, Hall element, eddy current displacement sensor, piezoresistive transducer, piezoelectric transducer, temperature sensor.LABVIEW is a kind of patterned programming language, utilizes it can set up easily the virtual instrument of oneself, for realizing instrument programming and data acquisition system (DAS), provides convenient way.
LABVIEW is a kind of patterned programming language, utilizes it can set up easily the virtual instrument of oneself, for realizing instrument programming and data acquisition system (DAS), provides convenient way.LABVIEW supports the hardware of NI company, provide Drivers Library, but hardware price is relatively expensive.But LABVIEW provides CLF (Call Labrary Function Node) node, makes the user call outside DLL dynamic link library file by the CLF node, thereby solved the problem of applying domestic hardware device in the LABVIEW environment.
Summary of the invention
These software systems complete experiment based on the Multifunction Sensor experiment porch, call the packaged function of dynamic link library file by top-down method for designing by the CLF node, build the basic performance data acquisition operations of software by VI reference node call function simple, data are preserved convenient, are convenient to generate laboratory report.
The accompanying drawing explanation
Fig. 1 is operational flow diagram of the present invention
Embodiment
The composition of software systems: according to top-down method for designing, according to function, the sensor experiment software systems are divided into to experiment management module, data acquisition module, curve fitting module and laboratory report and generate four module altogether.Each module by several independently sub-VI realize, then by VI, quote handle, open that VI quotes, reference node calls and close and quote these three functions and complete the dynamic call of antithetical phrase VI, thereby form the basic function of whole software systems.By the dynamic call of VI, only graftabl when calling, call while finishing and discharge, and can effectively reduce EMS memory occupation and faster procedure loading procedure.
Experiment management: the experiment management module is responsible for the form of the laboratory report to generating and is set, and the experiment essential informations such as experimenter, experimental facilities, experimental situation, experiment title are set, for the generation of laboratory report provides service.
Data acquisition: data acquisition module is responsible for data by the USB-7660 data collecting module collected to computing machine, will completing the management to capture card equipment on the one hand, and the drainage pattern of capture card, acquisition channel etc. are arranged; On the other hand the data of collection are shown, preserved.In flow chart, set the collection period of 200ms by the while construction of condition, the closing of the start and stop by if construction of condition data acquisition in the while loop structure, the preservation of data, equipment.The ZT7660_OpenDevice function called by the CLF node in USB-7660 data collecting card DLL library file in this module is opened equipment, the ZT7660_AIonce function is arranged and data acquisition equipment, calls ZT7660_CloseDevice functional relationships hull closure.Reset function by the array of LABVIEW and will collect the data formation 1 dimension group in internal memory, show in the waveform chart.
Curve: curve fitting module is called the linear fit VI that LABVIEW carries to the input and output amount of sensor and is carried out matching, and form two-dimensional array through the binding function, thereby complete the calculating at drafting, matching, sensitivity and the zero point of Sensor curve.2.4 the MS Office Report function of the Report Generation Toolkit for Microsoft Office kit that report generation laboratory report generation module utilizes LABVIEW to provide generates laboratory report.
Claims (4)
1. the Multifunction Sensor experimental box integrates various measured bodies, comprises the functions such as capacitive transducer, inductance sensor, photoelectric sensor, Hall element, eddy current displacement sensor, piezoresistive transducer, piezoelectric transducer, temperature sensor.LABVIEW is a kind of patterned programming language, utilizes it can set up easily the virtual instrument of oneself, for realizing instrument programming and data acquisition system (DAS), provides convenient way.
2. a kind of Multifunction Sensor experimental system based on LABVIEW according to claim 1, it is characterized in that: make the user call outside DLL dynamic link library file by the CLF node, thereby solved the problem of the domestic hardware device of application in the LABVIEW environment.
3. a kind of Multifunction Sensor experimental system based on LABVIEW according to claim 2, is characterized in that: can set up easily the virtual instrument of oneself, for realizing instrument programming and data acquisition system (DAS), provide convenient way.
4. a kind of Multifunction Sensor experimental system based on LABVIEW according to claim 3, it is characterized in that: the DLL dynamic link library file that calls the USB-7660 data collecting card by LABVIEW CLF node, the measurement data of pick-up transducers is to PC, the conditioning of settling signal in the LABVIEW environment, thereby build the multi-channel data acquisition platform of a USB, complete the data acquisition pretreatment system that an Eco-power computer software environment combines with multifunctional laboratory box.
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| CN201310412575XA CN103440162A (en) | 2013-09-10 | 2013-09-10 | LABVIEW-based design of multifunctional sensor experiment system |
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| CN201310412575XA CN103440162A (en) | 2013-09-10 | 2013-09-10 | LABVIEW-based design of multifunctional sensor experiment system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977493A (en) * | 2014-05-29 | 2014-08-13 | 北京航空航天大学 | Experimental platform for noninvasive ventilation leak detection |
| CN104536812A (en) * | 2014-12-30 | 2015-04-22 | 北京无线电计量测试研究所 | LabVIEW-based dynamic link library calling method |
| CN105069178A (en) * | 2015-07-30 | 2015-11-18 | 武汉格林族信息科技有限公司 | Experimental data acquisition and analysis system and method |
| CN108183769A (en) * | 2017-12-28 | 2018-06-19 | 北京理工大学 | A kind of diverse sampling rates CAN bus data analysis method based on LabVIEW |
| CN109271207A (en) * | 2018-09-21 | 2019-01-25 | 武汉烽理光电技术有限公司 | The method of the high-speed collection card driving of USB3.0 is called based on MATLAB |
-
2013
- 2013-09-10 CN CN201310412575XA patent/CN103440162A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977493A (en) * | 2014-05-29 | 2014-08-13 | 北京航空航天大学 | Experimental platform for noninvasive ventilation leak detection |
| CN104536812A (en) * | 2014-12-30 | 2015-04-22 | 北京无线电计量测试研究所 | LabVIEW-based dynamic link library calling method |
| CN104536812B (en) * | 2014-12-30 | 2018-04-03 | 北京无线电计量测试研究所 | A kind of call method of the dynamic link library based on LabVIEW |
| CN105069178A (en) * | 2015-07-30 | 2015-11-18 | 武汉格林族信息科技有限公司 | Experimental data acquisition and analysis system and method |
| CN108183769A (en) * | 2017-12-28 | 2018-06-19 | 北京理工大学 | A kind of diverse sampling rates CAN bus data analysis method based on LabVIEW |
| CN109271207A (en) * | 2018-09-21 | 2019-01-25 | 武汉烽理光电技术有限公司 | The method of the high-speed collection card driving of USB3.0 is called based on MATLAB |
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Application publication date: 20131211 |