CN102980605A - An apparatus and a method for signal acquisition - Google Patents
An apparatus and a method for signal acquisition Download PDFInfo
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- CN102980605A CN102980605A CN2011102610094A CN201110261009A CN102980605A CN 102980605 A CN102980605 A CN 102980605A CN 2011102610094 A CN2011102610094 A CN 2011102610094A CN 201110261009 A CN201110261009 A CN 201110261009A CN 102980605 A CN102980605 A CN 102980605A
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Abstract
The present invention provides an apparatus and a method for signal acquisition. the signal acquisition apparatus comprises: a signal acquisition module used for collecting physical information, and converting the physical information to a corresponding signal source; a signal processing module which is connected with the signal acquisition module, and is used for performing a first signal processing on the signal source to obtain a first signal having a predetermined range; an interface module which is connected to the interface module and is used for transmitting the first signal; and a mobile terminal which has an audio interface matched with the interface module, the mobile terminal receives the first signal through the audio interface, and performs a second signal processing on the first signal to obtain relevant data of the physical information, and displays the relevant data of the physical information. The apparatus of the present invention is portable, low in cost, and not limited by application scenarios; so information collection, processing and sharing in large scale and in bulk is convenient to achieve.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of signal pickup assembly and method.
Background technology
Along with the development of science and technology, infotech more and more has been dissolved in the daily life, and the increasing electronic equipment such as electronic thermometer, psychrometer, detector is just changing people's life in the mode of uniqueness.The physical message of all these electronic equipment collections finally will show in the mode that people are easy to perception, and it all needs the process such as collection, processing through signal.
Existing signal pickup assembly generally all is to use the data acquisition card of specialty as the signals collecting front end, uses PC to process the rear end as signal.
The problem that prior art exists is, although the data acquisition card of specialty possesses higher sampling precision and sample frequency, but the physical quantity lower for change frequencies such as temperature, humidity, that accuracy requirement is not high, its fancy price have limited its popularization and application in these fields.In addition, although PC possesses powerful arithmetic capability, the volume that it is huge and power consumption have greatly limited the application scenario.To sum up, existing signal pickup assembly can't satisfy people now and physical message is easy to the demand obtaining, be convenient to share.
Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency.
For achieving the above object, one aspect of the present invention proposes a kind of signal pickup assembly, comprising: signal acquisition module is used for gathering physical message, and described physical message is converted to corresponding signal source; Signal processing module, described signal processing module links to each other with described signal acquisition module, is used for described signal source is carried out the first signal that first signal processes to obtain to have predetermined range; Interface module, described interface module links to each other with described signal processing module, is used for transmitting described first signal; Portable terminal, described portable terminal has audio interface, described audio interface and described interface module are complementary, and described portable terminal receives described first signal by described audio interface, and described first signal carried out the related data that secondary signal processes to obtain described physical message, and the related data that shows described physical message.
Signal pickup assembly according to the embodiment of the invention, in the situation of the hardware circuit that does not change portable terminal and structure, by using portable terminal that signal is processed, effectively utilized the stronger information processing capability of portable terminal, reduced the cost that signal is processed.In addition, the peripheral circuit of signal pickup assembly of the present invention is few, and is simple in structure, is easy to carry, and cost is low, and is not subjected to the restriction of application scenario, realizes easily information acquisition and processing extensive, mass.
The present invention also proposes a kind of signal acquisition method on the other hand, may further comprise the steps: S1: gather physical message, and described physical message is converted to corresponding signal source; S2: described signal source is carried out the first signal that first signal processes to obtain to have predetermined range; S3: described first signal is transferred to portable terminal by audio interface; And S4: described portable terminal carries out the related data that secondary signal processes to obtain described physical message to described first signal, and the related data of described physical message is shown.
According to the signal acquisition method of the embodiment of the invention, realize the sampling and processing of physical message by using portable terminal, process is simple, easily operation.
The aspect that the present invention adds and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or the additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the synoptic diagram of the signal pickup assembly of one embodiment of the invention;
Fig. 2 is the structural representation of the signal pickup assembly of one embodiment of the invention;
Fig. 3 is the structural representation of the signal processing module of one embodiment of the invention;
Fig. 4 is the synoptic diagram of the interface module of one embodiment of the invention;
Fig. 5 is the structural representation of the portable terminal of one embodiment of the invention;
Fig. 6 is the structural representation of the audio frequency multimedia digital coder/decoder of one embodiment of the invention; And
Fig. 7 is the process flow diagram of the signal acquisition method of one embodiment of the invention.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein identical or similar label represents identical or similar element 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 present invention, and can not be interpreted as limitation of the present invention.
Wherein, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance.
Specifically describe signal pickup assembly according to the embodiment of the invention below with reference to Fig. 1 and Fig. 2.Fig. 1 is the synoptic diagram of the signal pickup assembly of one embodiment of the invention, and Fig. 2 is the structural representation of the signal pickup assembly of another embodiment of the present invention.
As depicted in figs. 1 and 2, the signal pickup assembly according to the embodiment of the invention comprises: signal acquisition module 100, signal processing module 200, interface module 300 and portable terminal 400, and portable terminal 400 has audio interface 410.
Wherein, signal acquisition module 100 is used for gathering physical message, and physical message is converted to corresponding signal source.Signal processing module 200 links to each other with signal acquisition module 100, is used for signal source is carried out the first signal that first signal processes to obtain to have predetermined range.Interface module 300 links to each other with signal processing module 200, is used for the transmission first signal.Audio interface 410 and the interface module 300 of portable terminal 400 are complementary, and portable terminal 400 receives first signal by audio interface 410, and first signal carried out the related data that secondary signal processes to obtain physical message, and the related data that shows physical message.
Wherein, predetermined range is the range of the electric signal that can process of portable terminal 400.
Particularly, signal acquisition module 100 can comprise temp probe and universal measurement probe, and temp probe is replaceable to realize the collection of different physical messages with the universal measurement probe.Signal acquisition module 100 is converted to discernible corresponding signal source by corresponding probe with physical message, for example, temp probe can cause that according to temperature variation thereby medium volume change in the probe causes the principle of resistance change, with the formal output of resistance value with DC voltage or electric current, the corresponding signal source that DC voltage or electric current are namely exported.
Generally uncertain by the signal source that signal acquisition module 100 is obtained, its range and frequency all can not accurately be estimated, and therefore need to process signal source.In one embodiment of the invention, as shown in Figure 3, signal processing module 200 comprises processing of signal sources circuit 210 and power circuit 220.Wherein, the range that processing of signal sources circuit 210 is used for zooming in or out signal source to be obtaining to have the first signal of predetermined range, and first signal was gone directly to cross to hand over.Power circuit 220 is used to signal acquisition module 100 and processing of signal sources circuit 210 that voltage is provided.
In one embodiment of the invention, interface module 300 can be 3.5mm four-part form earphone interface.As shown in Figure 4,3.5mm four-part form earphone interface comprises four pin: GND (common port) 310, MIC (microphone or microphone) 320, Right Channel (R channel) 330 and Left Channel (L channel) 340.First signal is transferred to portable terminal 400 by MIC pin 320.
In one embodiment of the invention, as shown in Figure 5, portable terminal 400 also can comprise audio frequency multimedia digital coder/decoder 420, the first processing unit 430, display unit 440.Wherein, audio frequency multimedia digital coder/decoder 420 is connected with audio interface 410, be used for to receive first signal, and first signal is amplified processing, and the first signal after will amplifying is converted to digital signal, and digital signal is carried out the filtering first time.The first processing unit 430 is used for obtaining according to filtered digital signal for the first time the related data of physical message.Display unit 440 is used for showing the related data of physical message.
Particularly, as shown in Figure 6, audio frequency multimedia digital coder/decoder 420 can comprise amplifying circuit 421, analog to digital converter 422 and filtering circuit 423.Wherein, amplifying circuit 421 is used for first signal is amplified.First signal after analog to digital converter 422 is used for amplifying is converted to digital signal, and the range of analog to digital converter 422 is identical with predetermined range.Filtering circuit 423 is used for digital signal is carried out the filtering first time.
The first processing unit 430 can be the CPU of portable terminal 400, realizes the digital-to-analog conversion of digital signal etc. by this CPU, to obtain the related data of the corresponding physical message of above-mentioned digital signal.
Display unit 440 can show the related data of the physical message that obtains according to the first processing unit 430 intuitively, for example, shows by forms such as histogram, curve and forms.Display unit 440 can be the display screen that portable terminal 400 carries.
In one embodiment of the invention, as shown in Figure 5, portable terminal 400 also can comprise the second processing unit 450.Particularly, the second processing unit 450 is connected between audio frequency multimedia digital coder/decoder 420 and the first processing unit 430, is used for filtered digital signal for the first time carried out that numeral is amplified and the filtering second time.The second processing unit 450 can be a DSP (Digital Signal Processor, digital signal processor), mainly finishes the gain of digital signal and filtering to send to the digital signal of the first processing unit 430 more stable, accurately.
Need to prove, the user can select whether to close according to needed result all or part of function of the second processing unit 450, for example, if want to obtain preferably digital signal, can open the function of the second processing unit 450, needn't specifically know the numerical value of digital signal if only be concerned about the large or little of digital signal, perhaps not strict to the numerical value requirement of digital signal, can close the function of the second processing unit 450 to economize on resources.
In one embodiment of the invention, as shown in Figure 5, portable terminal 400 also can comprise shared cell 460.Shared cell 460 is used for by network the related data of physical message being uploaded onto the server.Utilize shared cell 460 can realize sharing of field data.
In one embodiment of the invention, as shown in Figure 5, portable terminal 400 also can comprise storage unit 470.Storage unit 470 is used for the related data of storage physical message.Thus, the user can obtain the historical data of physical message at any time.
Signal pickup assembly according to the embodiment of the invention, in the situation of the hardware circuit that does not change portable terminal and structure, by using portable terminal signal is processed, effectively utilized the stronger information processing capability of portable terminal, reduced the cost that signal is processed, and can realize easily that by portable terminal the network of Information Monitoring data is shared.In addition, the peripheral circuit of signal pickup assembly of the present invention is few, and is simple in structure, is easy to carry, and cost is low, and is not subjected to the restriction of application scenario, realizes easily information acquisition and processing extensive, mass.
For realizing above-described embodiment, the present invention also proposes a kind of information collecting method.
Fig. 7 is the process flow diagram of the signal acquisition method of one embodiment of the invention.As shown in Figure 7, the signal acquisition method according to the embodiment of the invention may further comprise the steps:
Step S101: gather physical message, and physical message is converted to corresponding signal source.
Step S102: signal source is carried out the first signal that first signal processes to obtain to have predetermined range.
Step S103: first signal is transferred to portable terminal by audio interface.
Step S104: portable terminal carries out the related data that secondary signal processes to obtain physical message to first signal, and the related data of physical message is shown.
Particularly, at first amplify described first signal, the first signal after then will amplifying is converted to digital signal, again digital signal is carried out the filtering first time, obtains the related data of physical message according to filtered digital signal.
In one embodiment of the invention, can carry out to the digital signal of first signal conversion also after digital signal being carried out for the first time filtering that numeral is amplified and for the second time filtering, so that acquisition is stablized more, digital signal accurately.
In one embodiment of the invention, also the related data of physical message can be uploaded onto the server.Thus, realize sharing of field data.
In one embodiment of the invention, also can store the related data of physical message.Thus, the user can obtain the historical data of physical message at any time.
According to the signal acquisition method of the embodiment of the invention, by collection, processing and the demonstration of portable terminal realization physical message, process is simple, easily operation.
In sum, signal pickup assembly and the method according to the embodiment of the invention has following beneficial effect at least:
(1) the signal pickup assembly peripheral circuit is few, and is simple in structure, is easy to carry, and cost is low.
(2) in the situation of the hardware circuit that does not change portable terminal and structure, by using portable terminal signal is processed, effectively utilized the stronger information processing capability of portable terminal, reduced the cost that signal is processed, and can realize easily that by portable terminal the network of Information Monitoring data is shared.
(3) can be easy and conveniently with lower cost realize extensive, mass information acquisition, process and share.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment that scope of the present invention is by claims and be equal to and limit.
Claims (13)
1. a signal pickup assembly is characterized in that, comprising:
Signal acquisition module is used for gathering physical message, and described physical message is converted to corresponding signal source;
Signal processing module, described signal processing module links to each other with described signal acquisition module, is used for described signal source is carried out the first signal that first signal processes to obtain to have predetermined range;
Interface module, described interface module links to each other with described signal processing module, is used for transmitting described first signal;
Portable terminal, described portable terminal has audio interface, described audio interface and described interface module are complementary, and described portable terminal receives described first signal by described audio interface, and described first signal carried out the related data that secondary signal processes to obtain described physical message, and the related data that shows described physical message.
2. signal pickup assembly according to claim 1 is characterized in that, described signal acquisition module comprises temp probe and universal measurement probe.
3. signal pickup assembly according to claim 1 is characterized in that, described signal processing module further comprises:
Processing of signal sources circuit, the range that is used for zooming in or out described signal source to be obtaining to have the first signal of predetermined range, and described first signal was gone directly to cross to hand over; With
Power circuit is used to described signal acquisition module and described processing of signal sources circuit that voltage is provided.
4. signal pickup assembly according to claim 1 is characterized in that, described portable terminal further comprises:
Audio frequency multimedia digital coder/decoder, described audio frequency multimedia digital coder/decoder is connected with described audio interface, be used for receiving described first signal, described first signal is amplified processing, and the first signal after the described amplification is converted to digital signal, and described digital signal is carried out the filtering first time;
The first processing unit, be used for according to the described first time filtered digital signal obtain the related data of described physical message; With
Display unit is for the related data that shows described physical message.
5. signal pickup assembly according to claim 4 is characterized in that, described portable terminal also comprises:
The second processing unit, described the second processing unit are connected between described audio frequency multimedia digital coder/decoder and described the first processing unit, be used for to the described first time filtered digital signal carry out that numeral is amplified and the filtering second time.
6. signal pickup assembly according to claim 4 is characterized in that, described portable terminal also comprises:
Shared cell is used for the related data of described physical message is uploaded onto the server.
7. signal pickup assembly according to claim 4 is characterized in that, described portable terminal also comprises:
Storage unit is for the related data of storing described physical message.
8. signal pickup assembly according to claim 4 is characterized in that, described audio frequency multimedia digital coder/decoder further comprises:
Amplifying circuit is used for described first signal is amplified;
Analog to digital converter is used for the first signal after the described amplification is converted to digital signal, and the range of described analog to digital converter is identical with described predetermined range; With
Filtering circuit is used for described digital signal is carried out the filtering first time.
9. a signal acquisition method is characterized in that, may further comprise the steps:
S1: gather physical message, and described physical message is converted to corresponding signal source;
S2: described signal source is carried out the first signal that first signal processes to obtain to have predetermined range;
S3: described first signal is transferred to portable terminal by audio interface; And
S4: described portable terminal carries out the related data that secondary signal processes to obtain described physical message to described first signal, and the related data of described physical message is shown.
10. signal acquisition method according to claim 9 is characterized in that, described step S4 further comprises:
S41: amplify described first signal;
S42: the first signal after the described amplification is converted to digital signal;
S43: described digital signal is carried out the filtering first time; And
S44: the related data of obtaining described physical message according to described filtered digital signal.
11. signal acquisition method according to claim 10 is characterized in that, before described step S44, also comprises:
To the described first time filtered digital signal carry out that numeral is amplified and for the second time filtering.
12. signal acquisition method according to claim 9 is characterized in that, also comprises:
Store the related data of described physical message.
13. signal acquisition method according to claim 9 is characterized in that, also comprises:
The related data of described physical message is uploaded onto the server.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110261009.4A CN102980605B (en) | 2011-09-05 | 2011-09-05 | An apparatus and a method for signal acquisition |
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| CN201110261009.4A CN102980605B (en) | 2011-09-05 | 2011-09-05 | An apparatus and a method for signal acquisition |
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| CN104977477A (en) * | 2014-04-10 | 2015-10-14 | 广州杰赛科技股份有限公司 | Radiation detection device based on audio interface |
| CN104980566A (en) * | 2014-04-10 | 2015-10-14 | 广州杰赛科技股份有限公司 | Radiation detection warning system based on audio interface |
| CN110095157A (en) * | 2019-05-21 | 2019-08-06 | 深圳洲斯移动物联网技术有限公司 | Temperature/humiditydetection detection system |
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