CN105606875A - Adaptive analog quantity acquisition device - Google Patents
Adaptive analog quantity acquisition device Download PDFInfo
- Publication number
- CN105606875A CN105606875A CN201610081205.6A CN201610081205A CN105606875A CN 105606875 A CN105606875 A CN 105606875A CN 201610081205 A CN201610081205 A CN 201610081205A CN 105606875 A CN105606875 A CN 105606875A
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- acquisition chip
- voltage
- analog quantity
- analog
- quantity acquisition
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
Abstract
The invention relates to an adaptive analog quantity acquisition device. The adaptive analog quantity acquisition device comprises a CPU, an SATA hard disk, a CPLD device, analog quantity acquisition chips, a detection acquisition chip, a switching switch, a conditioning circuit and voltage access ends, wherein the voltage access ends are multiple in number and respectively correspond to different voltages, the analog quantity acquisition chips are multiple in number and correspond to the voltage access ends in one-to-one correspondence, the CPU is respectively connected with the SATA hard disk and the CPLD device, the CPLD device is respectively connected with the switching switch, each analog quantity acquisition chip and the detection acquisition chip, each analog quantity acquisition chip and the detection acquisition chip are connected with the switching switch, the switching switch is connected with the conditioning circuit, and each voltage access end is respectively connected with the conditioning circuit. The adaptive analog quantity acquisition device can automatically test various types of voltage signals, artificial supervision is not required, batch tests can be carried out, the time is saved, the product test period is shortened, and the adaptive analog quantity acquisition device further has advantages of strong pertinence, simple operation and high efficiency.
Description
Technical field
The present invention relates to the technical field of analog acquisition, is a kind of adaptive modeling amount harvester specifically.
Background technology
In industrial automatic control occasion and test environment, need a large amount of analog signals collections, analog quantity is very high to demand on signal quality, and require working environment relatively stable, the collection signal cycle is longer, in order to reduce cost of labor, increase work efficiency, need in batches carry out fast the test job of various varying voltage signal level, of a great variety at the voltage of automation control industry, but mainly taking ± 5V, ± 10V, ± 28V be as main. Generally, gathering every kind of voltage signal all needs different test capture cards, and need to manually connect accordingly, and whole process all needs artificial supervision, while very expending people, is unfavorable for batch capture.
Summary of the invention
It is a kind of adaptive modeling amount harvester specifically that the technical problem to be solved in the present invention is to provide.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is:
Adaptive modeling amount harvester of the present invention, comprising: CPU, SATA hard disk, CPLD device, analog acquisition chip, detection acquisition chip, change-over switch, modulate circuit and voltage incoming end; Wherein voltage incoming end is multiple, corresponding different voltage respectively, and analog acquisition chip is also multiple, and corresponding one by one with voltage incoming end; CPU is connected with CPLD device with SATA hard disk respectively, and CPLD device is connected with change-over switch, each analog acquisition chip and detection acquisition chip respectively, and each analog acquisition chip is connected with change-over switch respectively again with detection acquisition chip; Change-over switch is connected with modulate circuit, and each voltage incoming end connects respectively again modulate circuit.
The present invention can also adopt following technical measures:
Described voltage incoming end is three, the on-the-spot voltage signal of respectively corresponding access ± 5V, ± 10V, ± 28V; Analog acquisition chip also corresponds to three.
Described CPU is the MPC8315EPowerPC of Freescale company.
CPLD device is the EPM1270 PLD of altera corp.
The AD7610 chip that each analog acquisition chip and detection acquisition chip are Analog Devices Inc.
Change-over switch is the ADG1208 analog switch of Analog Devices Inc.
Modulate circuit is voltage attenuation circuit.
Advantage and good effect that the present invention has are:
In adaptive modeling amount harvester of the present invention, arrange simultaneously multiple voltage incoming ends and with voltage incoming end analog acquisition chip one to one, change-over switch connects respectively CPLD device, analog acquisition chip and detection acquisition chip, know that by detecting acquisition chip which kind of voltage signal the signal collecting is, then change-over switch is switched to the analog acquisition chip that is connected to corresponding varying voltage signal to carry out voltage signal acquisition, analyze and storage, the various voltage signals of automatic test are realized, do not need artificial supervision, and can carry out batch testing, save the time, shorten the test period of product. pointed strong, implement simple and efficiency high.
Brief description of the drawings
Fig. 1 is the configuration diagram of adaptive modeling amount harvester of the present invention.
Detailed description of the invention
Referring to specific embodiment, the present invention will be described in detail.
As shown in Figure 1, adaptive modeling amount harvester of the present invention, comprising: CPU, SATA hard disk, CPLD device, analog acquisition chip, detection acquisition chip, change-over switch, modulate circuit and voltage incoming end; Wherein voltage incoming end is multiple, corresponding different voltage respectively, and analog acquisition chip is also multiple, and corresponding one by one with voltage incoming end, due to the voltage in automation industry mainly with ± 5V, ± 10V, ± 28V are main, so voltage incoming end is three, be designated as voltage incoming end A, voltage incoming end B and voltage incoming end C, the on-the-spot voltage signal of respectively corresponding access ± 5V, ± 10V, ± 28V; Analog acquisition chip also corresponds to three, is designated as analog acquisition chip A, analog acquisition chip B and analog acquisition chip C, the voltage signal of corresponding collection ± 5V, ± 10V, ± 28V; CPU is connected with CPLD device with SATA hard disk respectively, SATA hard-disc storage gathers and test data, CPLD device is connected with change-over switch, each analog acquisition chip and detection acquisition chip respectively, and each analog acquisition chip is connected with change-over switch respectively again with detection acquisition chip; Change-over switch is connected with modulate circuit, and each voltage incoming end connects respectively again modulate circuit.
After three kinds of different voltage signals are connected with the voltage incoming end of harvester, the level signal that first by signal conditioning circuit, voltage conditioning can be received for analog acquisition chip, re-using change-over switch is connected to the voltage signal after conditioning to detect on acquisition chip, according to gathering the voltage signal coming up, determine which three kinds of voltages are respectively, then switch three kinds of voltage signals are switched respectively on corresponding analog acquisition chip by control, carry out normal voltage signal acquisition test, and data are remained, after automatic test, analyze the data of preserving, understand signal level variation situation.
CPU is the MPC8315EPowerPC of Freescale company. CPLD device is the EPM1270 PLD of altera corp. The AD7610 chip that each analog acquisition chip and detection acquisition chip are Analog Devices Inc. Change-over switch is the ADG1208 analog switch of Analog Devices Inc. Modulate circuit is voltage attenuation circuit.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention with preferred embodiment openly as above, but, not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (7)
1. an adaptive modeling amount harvester, is characterized in that, comprising: CPU, SATA hard disk, CPLD device, analog acquisition chip, detection acquisition chip, change-over switch, modulate circuit and voltage incoming end; Wherein voltage incoming end is multiple, corresponding different voltage respectively, and analog acquisition chip is also multiple, and corresponding one by one with voltage incoming end; CPU is connected with CPLD device with SATA hard disk respectively, and CPLD device is connected with change-over switch, each analog acquisition chip and detection acquisition chip respectively, and each analog acquisition chip is connected with change-over switch respectively again with detection acquisition chip; Change-over switch is connected with modulate circuit, and each voltage incoming end connects respectively again modulate circuit.
2. adaptive modeling amount harvester according to claim 1, is characterized in that: voltage incoming end is three, the on-the-spot voltage signal of respectively corresponding access ± 5V, ± 10V, ± 28V; Analog acquisition chip also corresponds to three.
3. adaptive modeling amount harvester according to claim 1 and 2, is characterized in that: CPU is the MPC8315EPowerPC of Freescale company.
4. adaptive modeling amount harvester according to claim 3, is characterized in that: the EPM1270 PLD that CPLD device is altera corp.
5. adaptive modeling amount harvester according to claim 4, is characterized in that: the AD7610 chip that each analog acquisition chip and detection acquisition chip are Analog Devices Inc.
6. adaptive modeling amount harvester according to claim 5, is characterized in that: the ADG1208 analog switch that change-over switch is Analog Devices Inc.
7. adaptive modeling amount harvester according to claim 5, is characterized in that: modulate circuit is voltage attenuation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610081205.6A CN105606875A (en) | 2016-02-04 | 2016-02-04 | Adaptive analog quantity acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610081205.6A CN105606875A (en) | 2016-02-04 | 2016-02-04 | Adaptive analog quantity acquisition device |
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| CN105606875A true CN105606875A (en) | 2016-05-25 |
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| CN201610081205.6A Pending CN105606875A (en) | 2016-02-04 | 2016-02-04 | Adaptive analog quantity acquisition device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110457246A (en) * | 2019-07-03 | 2019-11-15 | 天津市英贝特航天科技有限公司 | A kind of high speed acquisition module based on VPX standard interface |
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| CN103328994A (en) * | 2010-12-22 | 2013-09-25 | 爱德万测试(新加坡)私人有限公司 | Calibration module for a tester and tester |
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