CN203054841U - Data collection and transmission device - Google Patents
Data collection and transmission device Download PDFInfo
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- CN203054841U CN203054841U CN2012207129344U CN201220712934U CN203054841U CN 203054841 U CN203054841 U CN 203054841U CN 2012207129344 U CN2012207129344 U CN 2012207129344U CN 201220712934 U CN201220712934 U CN 201220712934U CN 203054841 U CN203054841 U CN 203054841U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The utility model provides a data collection and transmission device which comprises a collection module, a processing module, an analog to digital (A/D) conversion module, an interface module, an optical transmission module and a controller module. The collection module collects data and generates analog signals, the processing module is connected with the collection module and processes the analog signals, the A/D conversion module is connected with the processing module and converts the analog signals which are processed by the processing module into digital signals, and the optical transmission module is connected with the interface module. The controller module is connected with the A/D conversion module, and sets a sampling rate of the A/D conversion module. The digital signals are transmitted through the interface module and the optical transmission module. The data collection and transmission device has the advantages of high data transmission rate and low system power consumption, and is high in accuracy of system sampling, and stable and reliable.
Description
Technical field
The utility model relates to the data acquisition system (DAS) field, particularly a kind of data acquisition and transmitting device.
Background technology
Along with science and technology development, more and more higher for the requirement of power consumption.Low-power consumption in the data acquisition system (DAS) requires also to become an important indicator.Usually, the data acquisition system (DAS) master chip generally adopts single-chip microcomputer or DSP(Digital Signal Processing, digital signal processing) chip, but because the restriction of application scenario and technical conditions can't be satisfied strict low-power consumption requirement.
The data transmission communication also is one of critical function of data acquisition system (DAS), at present most serial communication modes that adopt.Traditional singlechip chip clock frequency is low and peripheral hardware speed is slow, has limited speed and the performance of data transmission greatly, can't satisfy the requirement of high speed serial communication.
In sum, the data acquisition system (DAS) of present stage has requirement for high speed serial communication and low-power consumption, and traditional data acquisition system (DAS) maybe can only satisfy one of them.
The utility model content
The purpose of this utility model is intended to one of solve the problems of the technologies described above at least.
For this reason, the purpose of this utility model is to propose a kind of message transmission rate height and low data acquisition and the transmitting device of system power dissipation.In addition, this apparatus system sampling precision height, reliable and stable.
For achieving the above object, the utility model proposes a kind of data acquisition and transmitting device, comprising: acquisition module, described acquisition module image data also generates simulating signal; Processing module, described processing module links to each other with described acquisition module, and described processing module is handled described simulating signal; The A/D modular converter, described A/D modular converter links to each other with described processing module, and the described analog signal conversion that described A/D modular converter will be handled through described processing module is digital signal; Interface module and the light delivery module that links to each other with described interface module; And controller module, described controller module links to each other with described A/D modular converter, and described controller module is set the sampling rate of described A/D modular converter, and sends described digital signal by described interface module and described light delivery module.
Have message transmission rate height and the low characteristics of system power dissipation according to the data acquisition that the utility model proposes and transmitting device, and systematic sampling precision height, reliable and stable.
Wherein, described A/D modular converter has the SPI interface, and described controller module is set the sampling rate of described A/D modular converter by described SPI interface.
Further, described interface module is the high speed serial port module, and the transfer rate of described high speed serial port module is greater than 1Mbps.
Further, described controller module is FPGA.
Further, described processing module comprises impedance matching submodule and filtering submodule.
Data acquisition and transmitting device also comprise: the crystal oscillator module, and described crystal oscillator module links to each other with described controller module, and described crystal oscillator module provides system clock to described controller module.
The aspect that the utility model is additional and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or the additional aspect of the utility model and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is according to the data acquisition of an embodiment of the utility model and the synoptic diagram of transmitting device;
Fig. 2 is according to the data acquisition of another embodiment of the utility model and the synoptic diagram of transmitting device; And
Fig. 3 is the routine processes process flow diagram according to the timing sampling of the data acquisition of the utility model embodiment and transmitting device.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical or similar label is represented identical or similar elements or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Disclosing hereinafter provides many different embodiment or example to be used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter parts and the setting to specific examples is described.Certainly, they only are example, and purpose does not lie in restriction the utility model.In addition, the utility model can be in different examples repeat reference numerals and/or letter.This repetition is in order to simplify and purpose clearly, itself not indicate the relation between the various embodiment that discuss of institute and/or the setting.In addition, various specific technology and examples of material that the utility model provides, but those of ordinary skills can recognize the property of can be applicable to of other technologies and/or the use of other materials.In addition, first feature described below second feature it " on " structure can comprise that first and second features form the embodiment of direct contact, can comprise that also additional features is formed on the embodiment between first and second features, such first and second features may not be direct contacts.
In description of the present utility model, need to prove, unless otherwise prescribed and limit, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly to link to each other, and also can link to each other indirectly by intermediary, for the ordinary skill in the art, can understand the concrete implication of above-mentioned term as the case may be.
With reference to following description and accompanying drawing, with these and other aspects of clear embodiment of the present utility model.In these descriptions and accompanying drawing, some specific implementations among the embodiment of the present utility model are specifically disclosed, represent to implement some modes of the principle of embodiment of the present utility model, but should be appreciated that the scope of embodiment of the present utility model is not limited.On the contrary, embodiment of the present utility model comprises spirit and interior all changes, modification and the equivalent of intension scope that falls into institute's additional claims.
Data acquisition and the transmitting device that the utility model embodiment is proposed is described with reference to the accompanying drawings.
Fig. 1 is according to the data acquisition of an embodiment of the utility model and the synoptic diagram of transmitting device.As shown in Figure 1, data acquisition and transmitting device 100 that the utility model embodiment proposes comprise: acquisition module 110, processing module 120, A/D modular converter 130, interface module 140, light delivery module 150 and controller module 160.
Wherein, acquisition module 110 image data and generate simulating signal.Processing module 120 links to each other with acquisition module 110, and 120 pairs of simulating signals of processing module are handled.Wherein, processing module 120 comprises impedance matching submodule and filtering submodule.Particularly, in an example of the present utility model, choose low-power consumption amplifier ADA4841-1 and constitute impedance matching submodule 121 and filtering submodule 122.Wherein, ADA4841-1 is the amplifier of low-power consumption, low noise, low distortion and rail-to-rail output, and maximum static current is 1.5mA.Thus, increase 130 input impedance of A/D modular converter by the amplifier follow circuit.
A/D modular converter 130 links to each other with processing module 120, and the analog signal conversion that A/D modular converter 130 was handled treated module 120 is digital signal.Interface module 140 is the high speed serial port module, and wherein, the transfer rate of high speed serial port module is greater than 1Mbps.Particularly, the communication baud rate of high speed serial port module can be 2Mbps, can self-defined communications protocol, and no coded system directly becomes data high-low level and sends.Thus, realize the high-speed transfer of data by the high speed serial port module.
In an example of the present utility model, as shown in Figure 2, data acquisition and transmitting device 100 also comprise: crystal oscillator module 170.Particularly, crystal oscillator module 170 links to each other with controller module 160, and crystal oscillator module 170 provides system clock to controller module 160.Wherein, crystal oscillator module 170 can be the clock crystal oscillator circuit that is made of the external active crystal oscillator.
Through linear power supply and power consumption analysis, in an example of the present utility model, each module of data acquisition and transmitting device 100 is all used the unified power supply of the externally fed power supply of 3.3V and datum is provided.
In an example of the present utility model, A/D modular converter 130 has SPI(SerialPeripheral Interface, Serial Peripheral Interface) interface (not shown), controller module 160 is set the sampling rate of A/D modular converter 130 by the SPI interface.Wherein, A/D modular converter 130 can be made of as the low-power consumption modulus conversion chip the AD7685 of band SPI communication interface.Particularly, controller module 160 is set the sampling rate of modulus conversion chip with the SPI communication modes by the SPI interface, and sampling rate for example is 100KSPS(kilo Samples perSecond, per second sampling thousand times).
In an embodiment of the present utility model, controller module 160 is FPGA.Wherein, FPGA(Field-Programmable Gate Array, field programmable gate array) chip employing high speed complementation metal-oxide semiconductor (MOS) (Complementary Metal Oxide Semiconductor is called for short CMOS) technology, low in energy consumption.FPGA mainly partly is made up of input-output unit able to programme, basic programmable logic cells, complete Clock management, embedded block formula RAM, abundant interconnection resource, embedded bottom functional unit and embedded application specific hardware modules etc.
Further, in an example of the present utility model, FPGA is made of the low-power consumption IGLOO Series FPGA-AGL060V2 of Actel company, the power supply of 1.2V kernel, 3.3V exterior I O power supply.Particularly, FPGA is by the SPI communication, and control analog digital conversion chip carries out data sampling to signal, and the collection signal digital amount that is converted to is handled, according to self-defined communications protocol framing, data are sent through high speed serial port module (interface module 140) and light delivery module 150.
Further, adopt the timing sampling mode to carry out data sampling by FPGA control modulus conversion chip.Wherein, finish tasks such as signals collecting, image data framing, serial data transmission in the time at timing sampling.Particularly, can estimate timing according to following formula: t=t
Conv+ t
Sample+ t
Framing+ t
Uant, in the formula, t is the unitary sampling timing, unit is microsecond; t
ConvBe analog-digital chip switching time, unit is microsecond; t
SampleBe the analog-digital chip data transmission period, unit is microsecond; t
FramingFor sampling obtains the data framing time, unit is microsecond; t
UartFor ganging up the news time, unit is microsecond.
Below in conjunction with Fig. 3 the data acquisition that the utility model proposes and the timing sampling process of transmitting device 100 are described.
As shown in Figure 3, the routine processes process of timing sampling comprises the steps:
Step S301, beginning.
Step S302, the unitary sampling time counting begins.
Step S303, AD conversion and SPI number pass.
Step S304 is according to self-defined communications protocol data framing.
Step S305, high-speed serial data sends.
Step S306 judges whether unitary sampling time counting value arrives.If count value arrives, then return step S302, otherwise execution in step S307.
Step S307 waits for.Arrive up to unitary sampling time counting value, return execution in step S302.
According to data acquisition and the transmitting device of the utility model embodiment, have the low characteristics of message transmission rate height and system power dissipation, and systematic sampling precision height, reliable and stable.
In addition, the data acquisition of the utility model embodiment and transmitting device, carry out according to the low-power dissipation system designing requirement fully from parts selection, circuit design and software design etc., not only satisfy the requirement of high speed serial communication, and can reach the power consumption levels of continuous service tens milliwatts, be applicable to the acquisition system that message transmission rate and system power dissipation are had higher requirements.This device has message transmission rate height and the low characteristics of system power dissipation, and systematic sampling precision height, reliable and stable.
In the description of this instructions, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present utility model or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment that scope of the present utility model is by claims and be equal to and limit.
Claims (6)
1. a data acquisition and transmitting device is characterized in that, comprising:
Acquisition module, described acquisition module image data also generates simulating signal;
Processing module, described processing module links to each other with described acquisition module, and described processing module is handled described simulating signal;
The A/D modular converter, described A/D modular converter links to each other with described processing module, and the described analog signal conversion that described A/D modular converter will be handled through described processing module is digital signal;
Interface module and the light delivery module that links to each other with described interface module; And
Controller module, described controller module links to each other with described A/D modular converter, and described controller module is set the sampling rate of described A/D modular converter, and sends described digital signal by described interface module and described light delivery module.
2. data acquisition as claimed in claim 1 and transmitting device is characterized in that, described A/D modular converter has the SPI interface, and described controller module is set the sampling rate of described A/D modular converter by described SPI interface.
3. data acquisition as claimed in claim 1 and transmitting device is characterized in that, described interface module is the high speed serial port module, and the transfer rate of described high speed serial port module is greater than 1Mbps.
4. data acquisition as claimed in claim 1 and transmitting device is characterized in that, described controller module is FPGA.
5. data acquisition as claimed in claim 1 and transmitting device is characterized in that, described processing module comprises impedance matching submodule and filtering submodule.
6. data acquisition as claimed in claim 1 and transmitting device is characterized in that, also comprise:
The crystal oscillator module, described crystal oscillator module links to each other with described controller module, and described crystal oscillator module provides system clock to described controller module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207129344U CN203054841U (en) | 2012-12-20 | 2012-12-20 | Data collection and transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207129344U CN203054841U (en) | 2012-12-20 | 2012-12-20 | Data collection and transmission device |
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| CN203054841U true CN203054841U (en) | 2013-07-10 |
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| CN2012207129344U Expired - Fee Related CN203054841U (en) | 2012-12-20 | 2012-12-20 | Data collection and transmission device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104574917A (en) * | 2015-01-29 | 2015-04-29 | 中国矿业大学 | Real-time monitoring system for microearthquake generated by rock burst |
| CN106559027A (en) * | 2015-09-17 | 2017-04-05 | 北汽福田汽车股份有限公司 | For the data isolation acquisition system and method and vehicle of vehicular electric machine controller |
| CN106843023A (en) * | 2015-12-03 | 2017-06-13 | 国网智能电网研究院 | A kind of electric power data acquisition system based on FPGA |
| CN107911090A (en) * | 2017-12-12 | 2018-04-13 | 成都互聚科技有限公司 | Computer network gathered data processing system based on dsp processor |
-
2012
- 2012-12-20 CN CN2012207129344U patent/CN203054841U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104574917A (en) * | 2015-01-29 | 2015-04-29 | 中国矿业大学 | Real-time monitoring system for microearthquake generated by rock burst |
| CN104574917B (en) * | 2015-01-29 | 2018-10-02 | 中国矿业大学 | A kind of bump Real-time Detecting System for Microseism |
| CN106559027A (en) * | 2015-09-17 | 2017-04-05 | 北汽福田汽车股份有限公司 | For the data isolation acquisition system and method and vehicle of vehicular electric machine controller |
| CN106843023A (en) * | 2015-12-03 | 2017-06-13 | 国网智能电网研究院 | A kind of electric power data acquisition system based on FPGA |
| CN107911090A (en) * | 2017-12-12 | 2018-04-13 | 成都互聚科技有限公司 | Computer network gathered data processing system based on dsp processor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20171220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |