CN202422126U - Data acquisition device based on LabView and USB (universal serial bus) 2.0 interface - Google Patents
Data acquisition device based on LabView and USB (universal serial bus) 2.0 interface Download PDFInfo
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- CN202422126U CN202422126U CN2011205662058U CN201120566205U CN202422126U CN 202422126 U CN202422126 U CN 202422126U CN 2011205662058 U CN2011205662058 U CN 2011205662058U CN 201120566205 U CN201120566205 U CN 201120566205U CN 202422126 U CN202422126 U CN 202422126U
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Abstract
The utility model discloses a data acquisition device based on LabView and USB (universal serial bus) 2.0 interface, wherein the acquisition device comprises a microprocessor, an A/D (analogue/digital) converter, a D/A (digital/analogue) converter, a temperature measurement sensor, an E<2>PROM (electrically erasable programmable read-only memory) storage module, a power supply module, and an input/output module. The data acquisition device disclosed by the utility model can be used for effectively solving the problems of bad stability and bad universality of the present acquisition device; and the data acquisition device is reasonable and scientific in design, and wide in engineering application field.
Description
Technical field:
The utility model relates to the data acquisition technology field, is specifically related to a kind of based on Labview and USB2.0 interface data collector.
Background technology:
Data acquisition (Data Acquisition) is exactly with the various parameter physical quantitys of measurand, chemistry amount, biomass etc.) do suitable conversion through various sensing elements after; Through steps such as signal condition, sampling, quantification, coding, transmission, deliver to the process that controller carries out data processing or stored record at last again.Data acquisition is a basic means of obtaining information; Data acquisition technology is as an important branch of information science; Be to serve as a comprehensive application technology forming of basis with technology such as sensor, signal measurement and processing, microcomputers; The operations such as collection, storage, processing and control of its research information data have very strong practicality.Along with science and technology development; Data acquisition system (DAS) has obtained application more and more widely, and simultaneously, people are to each item technology of data acquisition system; As: sampling rate, resolution, the linearity, precision, input range, control method and antijamming capability etc. have proposed increasingly high requirement; Particularly precision and sampling rate especially user and deviser the common major issue of paying close attention to, so at a high speed and the ultra-high-speed data acquisition system arise at the historic moment, and obtain fast development.Today; Data acquisition technology is widely used in various fields such as radar, communication, the underwater sound, remote sensing, geologic prospecting, vibration engineering, non-destructive monitoring, speech processes, intelligence instrument, industry automatic control and biomedical engineerings, and has received good effect.
Data acquisition is widely used in various tests and control system; From existing technology and product, the data acquisition technology of low speed, low resolution is quite ripe, implements also than being easier to; Monolithic ADC can meet the demands, and the stability of product and reliability are unquestionable.But high-speed data acquistion system is owing to receive the restriction of device (mainly being ADC), and real realization high speed, high-resolution product also are not a lot.To detect in real time and the growing needs of high speed acquisition data acquisition system (DAS) in order satisfying, to realize that high speed, the high resolving power of data acquisition have become a developing direction of data acquisition system (DAS).Existing high-speed ADC Device and products price all compares expensive; Some itself also exists instability; Shortcomings such as product ubiquity versatility is poor, purposes is single, measuring point is few, measuring distance is little, environmental suitability difference are far from forming seriation, modularization, standardized universal product.
Summary of the invention:
The technical matters that the utility model will solve provides a kind of based on Labview and USB2.0 interface data collector; This technical scheme effectively solves the problem of existing collector stability and versatility difference; This data acquisition utensil science reasonable in design has practical applications field widely.
The utility model is realized through following technical scheme:
A kind of based on Labview and USB2.0 interface data collector; Comprise the computing machine of adorning Labview pattern development software and data acquisition unit application software in this, said collector comprises microprocessor, A/D converter, D/A converter, sensor for measuring temperature, E2PROM memory module, power module and input/output module; Said microprocessor is the core cell of data acquisition unit; 8 tunnel analog signal conversion that said A/D converter will be imported are digital signal, link to each other with master controller through input 8+4 parallel data grabbing card; Said D/A converter is a simulating signal with 1 way word conversion of signals of computing machine output; Said sensor for measuring temperature is used for measures ambient temperature, can also carry out temperature compensation and correction to the measurement of simulating signal; Said E2PROM memory module is the reception and the transmission of I2C universal serial bus data; Said power module is that microprocessor provides working power with other module; Said input/output module is the input of 16 way switch amounts, the output that microprocessor provides; 8 road analog input signals link to each other with 8 input ends of A/D converter respectively; After A/D converter converts 12 position digital signals to; Link to each other with microprocessor through the 4+8 parallel bus; Microprocessor links to each other with the computing machine USB interface through the USB2.0 interface, and D/A converter, sensor for measuring temperature adopt serial mode to be connected with microprocessor respectively; The output terminal of power module is connected with the power end of microprocessor, and the E2PROM memory module links to each other with microprocessor through the I2C universal serial bus.
The further Technological improvement plan of the utility model is:
Said microprocessor adopts the CY7C68013 chip of EZ-USB FX2 series, its inner integrated RAM, 8051 single-chip microcomputers, IFO storer, general programmable interface (GPIF) and USB2.0 interface; Said A/D converter adopts the MAX197 chip; Said D/A converter adopts the MAX5384 chip; Said sensor for measuring temperature adopts the DS18B20 chip; Said E2PROM memory module adopts the AT24C02 chip; Power module adopts the SPX1117 chip.
The utility model compared with prior art has following obvious advantage:
The utility model adopts Labview pattern development software; The A/D converter of high-precision high-speed degree and microprocessor are realized 8 tunnel 12 bit data collections, 1 tunnel 8 D/A output, 16 way word I/O; Having digital temperature detects and Presentation Function; The maximum sample rate 100KHz of AD, this data acquisition unit has high cost performance, has application value widely in the engineering test field.
Description of drawings:
Fig. 1 is the system chart of the utility model.
Embodiment:
As shown in Figure 1; The utility model comprises the computing machine of adorning Labview pattern development software and data acquisition unit application software in this, and collector comprises microprocessor, A/D converter, D/A converter, sensor for measuring temperature, E2PROM memory module, power module and input/output module; Microprocessor is the core cell of data acquisition unit; 8 tunnel analog signal conversion that A/D converter will be imported are digital signal, link to each other with master controller through input 8+4 parallel data grabbing card; D/A converter is a simulating signal with 1 way word conversion of signals of computing machine output; Sensor for measuring temperature is used for measures ambient temperature, can also carry out temperature compensation and correction to the measurement of simulating signal; The E2PROM memory module is the reception and the transmission of I2C universal serial bus data; Power module is that microprocessor provides working power with other module; Input/output module is the input of 16 way switch amounts, the output that microprocessor provides; Microprocessor adopts the CY7C68013 chip of EZ-USB FX2 series; Its inner integrated RAM, 8051 single-chip microcomputers, IFO storer, general programmable interface (GPIF) and USB2.0 interface, A/D converter adopts the MAX197 chip, and D/A converter adopts the MAX5384 chip; Sensor for measuring temperature adopts the DS18B20 chip; The E2PROM memory module adopts the AT24C02 chip, and power module adopts the SPX1117 chip, and 8 road analog input signals link to each other with 8 input ends of A/D converter respectively; After A/D converter converts 12 position digital signals to; Link to each other with microprocessor through the 4+8 parallel bus, microprocessor links to each other with the computing machine USB interface through the USB2.0 interface, and D/A converter, sensor for measuring temperature adopt serial mode to be connected with microprocessor respectively; The output terminal of power module is connected with the power end of microprocessor; The E2PROM memory module links to each other with microprocessor through the I2C universal serial bus; Multichannel analog signals inputs to A/D converter, and the analog to digital conversion and the data transmission of the GPIF control A/D converter of microprocessor upload to computing machine under AUTO IN mode; Utilize Labview virtual instrument application software that 8 tunnel simulating signals of input are gathered, handle, analyzed and store; In VC++, dynamic link library (DLL) file that is easy to transplant is made in the various operations of softward interview USB, in Labview, directly loaded these DLL, thereby realized communicating by letter of computing machine and usb data collector.
The utility model does not relate to all identical with the prior art prior art that maybe can adopt of part to be realized.
Claims (7)
1. one kind based on Labview and USB2.0 interface data collector, and it is characterized in that: said collector comprises microprocessor, A/D converter, D/A converter, sensor for measuring temperature, E2PROM memory module, power module and input/output module; Said microprocessor is the core cell of data acquisition unit; 8 tunnel analog signal conversion that said A/D converter will be imported are digital signal, link to each other with master controller through input 8+4 parallel data grabbing card; Said D/A converter is a simulating signal with 1 way word conversion of signals of computing machine output; Said sensor for measuring temperature is used for measures ambient temperature, can also carry out temperature compensation and correction to the measurement of simulating signal; Said E2PROM memory module is the reception and the transmission of I2C universal serial bus data; Said power module is that microprocessor provides working power with other module; Said input/output module is the input of 16 way switch amounts, the output that microprocessor provides; 8 road analog input signals link to each other with 8 input ends of A/D converter respectively; After A/D converter converts 12 position digital signals to; Link to each other with microprocessor through the 4+8 parallel bus; Microprocessor links to each other with the computing machine USB interface through the USB2.0 interface, and D/A converter, sensor for measuring temperature adopt serial mode to be connected with microprocessor respectively; The output terminal of power module is connected with the power end of microprocessor, and the E2PROM memory module links to each other with microprocessor through the I2C universal serial bus.
2. according to claim 1 a kind of based on Labview and USB2.0 interface data collector; It is characterized in that: said microprocessor adopts the CY7C68013 chip of EZ-USB FX2 series, its inner integrated RAM, 8051 single-chip microcomputers, IFO storer, general programmable interface GPIF and USB2.0 interface.
3. according to claim 1 a kind of based on Labview and USB2.0 interface data collector, it is characterized in that: said A/D converter adopts the MAX197 chip.
4. according to claim 1 a kind of based on Labview and USB2.0 interface data collector, it is characterized in that: said D/A converter adopts the MAX5384 chip.
5. according to claim 1 a kind of based on Labview and USB2.0 interface data collector, it is characterized in that: said sensor for measuring temperature adopts the DS18B20 chip.
6. according to claim 1 a kind of based on Labview and USB2.0 interface data collector, it is characterized in that: said E2PROM memory module adopts the AT24C02 chip.
7. according to claim 1 a kind of based on Labview and USB2.0 interface data collector, it is characterized in that: power module adopts the SPX1117 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205662058U CN202422126U (en) | 2011-12-30 | 2011-12-30 | Data acquisition device based on LabView and USB (universal serial bus) 2.0 interface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205662058U CN202422126U (en) | 2011-12-30 | 2011-12-30 | Data acquisition device based on LabView and USB (universal serial bus) 2.0 interface |
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| Publication Number | Publication Date |
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| CN202422126U true CN202422126U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205662058U Expired - Fee Related CN202422126U (en) | 2011-12-30 | 2011-12-30 | Data acquisition device based on LabView and USB (universal serial bus) 2.0 interface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838654A (en) * | 2019-11-20 | 2020-02-25 | 石门依云电子商务有限公司 | Intelligent socket based on power line carrier |
-
2011
- 2011-12-30 CN CN2011205662058U patent/CN202422126U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838654A (en) * | 2019-11-20 | 2020-02-25 | 石门依云电子商务有限公司 | Intelligent socket based on power line carrier |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20121230 |