CN202748658U - Ethernet multi-path data acquisition device - Google Patents
Ethernet multi-path data acquisition device Download PDFInfo
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- CN202748658U CN202748658U CN2012204188764U CN201220418876U CN202748658U CN 202748658 U CN202748658 U CN 202748658U CN 2012204188764 U CN2012204188764 U CN 2012204188764U CN 201220418876 U CN201220418876 U CN 201220418876U CN 202748658 U CN202748658 U CN 202748658U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The present utility model discloses an Ethernet multi-path data acquisition device. The device comprises a multi-path signal selection circuit, a signal conditioning and amplifying circuit, an analog to digital conversion circuit, a microprocessor circuit and an Ethernet interface circuit; a signal input end of the multi-path signal selection circuit is used for connecting external multi-path simulation signals, an output end is connected with a signal input end of the analog to digital conversion circuit through the signal conditioning and amplifying circuit, a signal output end of the analog to digital conversion circuit is connected with a signal input end of the microprocessor circuit, and a signal output end of the microprocessor circuit is connected with a remote control center through the Ethernet interface circuit. By adopting the device, collected simulation data can be remotely transmitted in real time through the Ethernet, and real-time reference data can be provided for working personnel of the remote control center. The device is suitable for data acquisition of wide span structures within the industrial measurement and control field.
Description
Technical field
The utility model belongs to the industrial measurement and control field, relates to a kind of multi-path data collecting device, is specifically related to a kind of Ethernet multi-path data collecting device.
Background technology
At the modern industry measurement and control area, data acquisition technology has a great development than the initial stage, and the performance index such as data-handling capacity, arithmetic speed all improve a lot than before.And along with the development of technology, have higher requirement to the precision of data harvester, speed, reliability etc. in the industrial measurement and control field.But, the data collector of at present industrial measurement and control field use exists dominant frequency lower, can not realize by Ethernet the shortcoming of big data quantity, long-range, real-time processing to the data that gather, can not satisfy present industrial measurement and control field to the multiple analog parameter carry out for a long time, real-time data acquisition and data are carried out the requirement of remote transmission by Industrial Ethernet, can not satisfy that precision to the data harvester is high, speed is fast, the requirement of good reliability simultaneously.
Summary of the invention
The technical problems to be solved in the utility model, provide a kind of Ethernet multi-path data collecting device, have that precision height, speed are fast, the characteristics of good reliability, can carry out for a long time the multiple analog parameter simultaneously, real-time data acquisition and data are carried out remote transmission by Industrial Ethernet.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of Ethernet multi-path data collecting device comprises multiple signals selection circuit, signal condition, amplifying circuit, analog to digital conversion circuit, microcontroller circuit and ethernet interface circuit;
Described multiple signals select the signal input part of circuit to be used for connecting outside multichannel analog signals, and output terminal connects the signal input part of analog to digital conversion circuit by signal condition, amplifying circuit;
The signal output part of analog to digital conversion circuit connects the signal input part of microcontroller circuit, and the signal output part of microcontroller circuit is used for connecting remote control center by ethernet interface circuit.
As to restriction of the present utility model: described microcontroller circuit adopts the TMS320LF2047 digital processing chip.
As another kind of the present utility model is limited: described multiplexed signal sampling circuit comprises multiplexed selector switch chip, the sixteen bit input end of described multiplexed selector switch chip is used for receiving outside multi-channel analog data, and control end is used for receiving the control signal that microcontroller circuit sends.
As the further restriction to aforesaid way:
Described signal condition, amplifying circuit comprise the first operational amplifier and the second operational amplifier;
For the analog output that connects multiplexed selector switch chip, inverting input connects the output terminal of self to the in-phase input end of described the first operational amplifier by the 4th resistance by the first resistance;
The in-phase input end of described the second operational amplifier connects power supply, and reverse input end connects the output terminal of self, and the output terminal of the second operational amplifier also connects the in-phase input end of the first operational amplifier by the second resistance simultaneously.
As the further restriction to aforesaid way: analog to digital conversion circuit adopts modulus conversion chip ADS8323.
As further limiting again aforesaid way: described ethernet interface circuit adopts ethernet control chip RTL8139, and the sixteen bit input end of described ethernet control chip connects the sixteen bit signal output part of TMS 320LF2047 digital processing chip.
Owing to adopted above-mentioned technical scheme, the utility model compared with prior art, obtained technical progress is:
(1) microcontroller circuit is connected with remote control center by ethernet interface circuit, has realized the remote transmission of image data;
(2) adopt digital processing chip TMS320LF2407 as the microprocessor of digital signal, can carry out little processing to high-speed digital signal, and can pack to each sensor digital quantity according to the TPC/IP protocol format;
(3) signal condition, amplifying circuit adopt the first operational amplifier and the second operational amplifier to consist of, have temperature and float little, good stability, advantage that reliability is high, can select the simulating signal of circuit output to carry out high-speed computation amplification and conditioning to multiple signals, thereby guarantee that digital processing chip TMS320LF2407 can realize a large amount of simulating signals is carried out high speed processing, prolongs the serviceable life of digital processing chip TMS320LF2407;
(4) high speed analog-digital conversion conversion chip ADS8323 is the high-speed digital-analog number conversion chip of sixteen bit, can carry out high speed A/D conversion to the simulating signal of obtaining, and has improved the work efficiency of whole device.
(5) the integrated ethernet control chip RTL8139 of the height that adopts makes up ethernet interface circuit, described integrated chip the MAC sublayer of IEEE802.3 consensus standard and the performance of Physical layer, support Ethernet full-duplex communication mode, support UTP, AUI and BNC automatically to detect, support the instantaneous read-write of storer, transmitting-receiving speed can reach 100Mbps simultaneously, can be connected with digital processing chip TMS320LF2407 easily.
(6) micro-processor interface circuit and the ethernet interface circuit built of digital processing chip TMS320LF2407 and ethernet control chip RTL8139 can make image data after the conversion be published on and carry out remote transmission on the Ethernet, has the short advantage of delay time.
As fully visible, the utility model data collector carries out the remote data transmission through Ethernet, has the advantage that transmission speed is fast, the bit error rate is low, transmitted data amount is unrestricted, transmission range is long.Simultaneously, adopt 16 parallel communication fashion collaborative work between the utility model microcontroller circuit and the analog to digital conversion point road, for the mass data that gathers can be in real time for a long time, fast, reliable analog to digital conversion and processing provide assurance.
The utility model is applicable to the data acquisition of longspan structure in the industrial measurement and control field.
The utility model is described in further detail below in conjunction with Figure of description and specific embodiment.
Description of drawings
Fig. 1 is the electrical block diagram of the utility model embodiment;
Fig. 2 be among the utility model embodiment multiplexer circuit schematic diagram;
Fig. 3 is the schematic diagram of signal condition, amplifying circuit among the utility model embodiment;
Fig. 4 is the schematic diagram of analog to digital conversion circuit among the utility model embodiment.
Embodiment
Embodiment
Present embodiment is a kind of Ethernet multi-path data collecting device, and structure as shown in Figure 1.It comprises multiple signals selection circuit, signal condition, amplifying circuit, analog to digital conversion circuit, microcontroller circuit and ethernet interface circuit.
Multiple signals select the signal input part of circuit to be used for connecting outside multichannel analog signals, and signal output part connects the signal input part of analog to digital conversion circuit by signal condition, amplifying circuit.
The signal output part of analog to digital conversion circuit connects the signal input part of ethernet interface circuit by microcontroller circuit, the signal output part of ethernet interface circuit is used for connecting remote control center, and described microcontroller circuit also sends control signal and selects circuit to multiple signals.
The principle of present embodiment multiplexer circuit as shown in Figure 2, it comprises multiplexed selection chip U1 (adopt MPC506 chip).Sixteen bit input end S1-S15 of multiplexed selection chip U1 is respectively applied to connect external analog signal, and four control end A0-A3 receive the control signal that microcontroller circuit sends.Series circuit by the first capacitor C1 and the second capacitor C2 between described multiplexed selection chip U1 the first pin V+ and the 27 pin V-connects together.
Shown in Figure 3 is the schematic diagram of present embodiment signal condition, amplifying circuit, this circuit comprise the first operational amplifier U2(adopt OPA132 at a high speed, high precision operating amplifier), the second operational amplifier U3(adopt OPA353 at a high speed, high precision operating amplifier).For the output pin MUXOUT that connects multiplexed selection chip U1, output terminal connects the inverting input of self to the in-phase input end of the first operational amplifier U2 by the 4th resistance R 4 by the first resistance R 1; The in-phase input end of the second operational amplifier U3 is used for connection+2.5V power supply, and output terminal connects the inverting input of self, and the output terminal of the second operational amplifier U3 also connects the in-phase input end of the first operational amplifier U2 by the second resistance R 2 simultaneously.
Shown in Figure 4 is the schematic diagram of present embodiment analog to digital conversion circuit, and this circuit comprises that modulus conversion chip U4(adopts high digital-to-analogue number conversion chip ADS8323).The input end of modulus conversion chip U4+IN connects the output terminal of the first operational amplifier 2 in signal condition, the amplifying circuit, and input end-IN connects the output terminal of the second operational amplifier U3 in signal condition, the amplifying circuit, the output terminal D of modulus conversion chip U4
OUTThe input end that connects microcontroller circuit.
Microcontroller circuit in the present embodiment adopts digital processing chip TMS320LF2407, and ethernet interface circuit adopts ethernet control chip RTL8139.Build respectively microcontroller circuit and ethernet interface circuit by two above-mentioned chips, wherein the sixteen bit signal input part of digital processing chip TMS320LF2407 connects the signal output part of analog-digital chip U4, and output terminal connects the signal input part of ethernet control chip RTL8139; The signal output part of ethernet control chip RTL8139 is used for connecting remote control center.
The specific works principle of present embodiment is: microcontroller circuit adopts dsp processor, dsp processor sends the channel selecting order to multiplexed selector switch chip U1, make multiplexed selector switch chip U1 select to obtain analog input signal from the outside, the signal of selecting sends signal condition to, amplifying circuit is processed, be the voltage signal of 0-5V with analog signal conditioner, conditioned signal sends analog to digital conversion circuit to and carries out mould/number conversion, the digital signal of conversion is sent into and is carried out the computing of data amplitude among the digital processing chip TMS320LF2407, the frequency spectrum algorithm process, network communication protocol processing etc., and final operation result is sent to remote control center by ethernet control chip RTL8139, the staff of remote control center finally obtains the data that collect.
Present embodiment is used for being connected with remote control center by ethernet interface circuit, the data that collect can be sent in large quantities, in real time, at a distance to the control personnel of remote control center, can satisfy existing site measuring and control to image data multiple analog parameter carry out for a long time, real-time data acquisition and data are carried out the requirement of remote transmission by Industrial Ethernet, also can satisfy that existing site measuring and control is high to the precision of data harvester simultaneously, speed soon, the requirement of good reliability.
Claims (6)
1. an Ethernet multi-path data collecting device is characterized in that: comprise multiple signals selection circuit, signal condition, amplifying circuit, analog to digital conversion circuit, microcontroller circuit and ethernet interface circuit;
Described multiple signals select the signal input part of circuit to be used for connecting outside multichannel analog signals, and output terminal connects the signal input part of analog to digital conversion circuit by signal condition, amplifying circuit;
The signal output part of analog to digital conversion circuit connects the signal input part of microcontroller circuit, and the signal output part of microcontroller circuit is used for connecting remote control center by ethernet interface circuit.
2. a kind of Ethernet multi-path data collecting device according to claim 1 is characterized in that: described microcontroller circuit employing TMS320LF2047 digital processing chip.
3. a kind of Ethernet multi-path data collecting device according to claim 1 and 2, it is characterized in that: described multiplexed signal sampling circuit comprises multiplexed selector switch chip, the sixteen bit input end of described multiplexed selector switch chip is used for receiving outside multi-channel analog data, and control end is used for receiving the control signal that microcontroller circuit sends.
4. a kind of Ethernet multi-path data collecting device according to claim 3, it is characterized in that: described signal condition, amplifying circuit comprise the first operational amplifier and the second operational amplifier;
For the analog output that connects multiplexed selector switch chip, inverting input connects the output terminal of self to the in-phase input end of described the first operational amplifier by the 4th resistance by the first resistance;
The in-phase input end of described the second operational amplifier connects power supply, and reverse input end connects the output terminal of self, and the output terminal of the second operational amplifier also connects the in-phase input end of the first operational amplifier by the second resistance simultaneously.
5. a kind of Ethernet multi-path data collecting device as claimed in claim 4 is characterized in that: analog to digital conversion circuit employing modulus conversion chip ADS8323.
6. a kind of Ethernet multi-path data collecting device as claimed in claim 5, it is characterized in that: described ethernet interface circuit adopts ethernet control chip RTL8139, and the sixteen bit input end of described ethernet control chip connects the sixteen bit signal output part of TMS 320LF2047 digital processing chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204188764U CN202748658U (en) | 2012-08-22 | 2012-08-22 | Ethernet multi-path data acquisition device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012204188764U CN202748658U (en) | 2012-08-22 | 2012-08-22 | Ethernet multi-path data acquisition device |
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| CN202748658U true CN202748658U (en) | 2013-02-20 |
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| CN2012204188764U Expired - Fee Related CN202748658U (en) | 2012-08-22 | 2012-08-22 | Ethernet multi-path data acquisition device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959673A (en) * | 2016-01-08 | 2017-07-18 | 西门子公司 | A kind of field data transmitting device, method and system |
| CN107015514A (en) * | 2017-06-07 | 2017-08-04 | 东莞市卓茂仪器有限公司 | A kind of signal for faster collection and control system based on Ethernet interface |
| CN109638636A (en) * | 2017-10-09 | 2019-04-16 | 科大国盾量子技术股份有限公司 | One kind is for semiconductor laser control and state monitoring apparatus |
| CN110032114A (en) * | 2019-04-24 | 2019-07-19 | 江苏泰坤环保科技有限公司 | A kind of high-precision analog signal acquisition processing circuit |
-
2012
- 2012-08-22 CN CN2012204188764U patent/CN202748658U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959673A (en) * | 2016-01-08 | 2017-07-18 | 西门子公司 | A kind of field data transmitting device, method and system |
| CN107015514A (en) * | 2017-06-07 | 2017-08-04 | 东莞市卓茂仪器有限公司 | A kind of signal for faster collection and control system based on Ethernet interface |
| CN109638636A (en) * | 2017-10-09 | 2019-04-16 | 科大国盾量子技术股份有限公司 | One kind is for semiconductor laser control and state monitoring apparatus |
| CN110032114A (en) * | 2019-04-24 | 2019-07-19 | 江苏泰坤环保科技有限公司 | A kind of high-precision analog signal acquisition processing circuit |
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Granted publication date: 20130220 Termination date: 20130822 |