CN109828494A - Data acquisition device - Google Patents
Data acquisition device Download PDFInfo
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- CN109828494A CN109828494A CN201910035814.1A CN201910035814A CN109828494A CN 109828494 A CN109828494 A CN 109828494A CN 201910035814 A CN201910035814 A CN 201910035814A CN 109828494 A CN109828494 A CN 109828494A
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Abstract
The present invention provides a kind of data acquisition device, which includes: control unit, network communication chip, input unit, multiple relay circuit structures, and input unit includes multiple selector, data cleansing device and ADC；Data cleansing device is connected between multiple selector and ADC, and ADC is connect by the first electrical isolation circuit with control unit, and network communication chip is connect by the second electrical isolation circuit with control unit；Each relay circuit structure includes relay and triode, and relay is connect with triode, and triode is connect by third electrical isolation circuit with control unit；Data cleansing device will uniform that treated that at least electric analoging signal is conveyed to ADC all the way；ADC will at least digital signal be conveyed to control unit all the way；Control unit generates digital data, and digital data is sent to receiving device.Deploying computer is not needed, can satisfy the demand of particular surroundings, such as in environment such as agricultural, the monitoring of combustion gas well.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of data acquisition devices.
Background technique
With the development of communication technology, in all kinds of environment, all there is the demand of acquisition data.Currently, number can be used
After data are acquired and are handled according to acquisition system, by the data transmitting and receiving terminal after processing, such as it is sent to service
Device etc..
In the prior art, it provides a kind of based on hybrid computer acquisition system.It is by general purpose computer and single-chip microcontroller
It is connected by STD bus.The part that single-chip computer and its peripheral circuit is constituted is the requirement for aiming at the functions such as data acquisition
And configure, computer undertakes the human-computer dialogue of data collection system, the calculating of large capacity, record, printing, graphical display etc. and appoints
Business.
However in the prior art, it since single-chip microcontroller needs to communicate by interface with computer, needs to change planes in collection site
In need deploying computer, and then be not able to satisfy the demand of particular surroundings, such as in environment such as agricultural, the monitoring of combustion gas well, these
Setting computer is not easy in environment.
Summary of the invention
The present invention provides a kind of data acquisition device, when to solve to acquire data in the prior art, is not easy to set
The problem of setting computer.
The present invention provides a kind of data acquisition device, comprising:
Control unit, network communication chip, input unit and at least one relay circuit structure, wherein described defeated
Entering unit includes multiple selector, data cleansing device and A/D converter ADC；
Wherein, the data cleansing device is connected between the multiple selector and the ADC, and the ADC passes through first
Electrical isolation circuit is connect with described control unit, and the network communication chip passes through the second electrical isolation circuit and the control
Unit connection；
Each of at least one relay circuit structure relay circuit structure includes relay and triode,
The relay is connect with the triode, and the triode is connect by third electrical isolation circuit with described control unit；
The multiple selector is converted to the analog input signal at least for receiving analog input signal
Electric analoging signal all the way, and electric analoging signal is conveyed to the data cleansing device all the way by described at least；
The data cleansing device is uniformed for electric analoging signal to carry out homogenization processing all the way to described at least
Treated at least electric analoging signal all the way, wherein that treated is at least each in electric analoging signal all the way for the homogenization
A road electric analoging signal amplification factor having the same and polarization value, and by the homogenization treated at least electrical analogue all the way
Signal is conveyed to the ADC；
The ADC is raw for the homogenization, treated that at least electric analoging signal carries out analog-to-digital conversion process all the way
At at least digital signal all the way, and by described at least, digital signal is conveyed to described control unit all the way；
Described control unit, for it is described at least all the way digital signal carry out digital sensors numerical value translation at
Reason generates digital data, and the digital data is sent to receiving device by the network communication chip.
Further, described device, further includes: input channel range encoder；
Wherein, the input channel range encoder is connected between described control unit and the data cleansing device；
The input channel range encoder, at least electrical analogue to be believed all the way described in obtaining in the data cleansing device
Number, and receive the process instruction of described control unit transmission；According to the process instruction, at least electric analoging signal all the way
It is handled, obtain that treated at least electric analoging signal all the way, wherein treated at least electric analoging signal all the way
Semaphore per electric analoging signal all the way is consistent；And treated that at least electric analoging signal is conveyed to the data all the way by described
Washer；
The data cleansing device, specifically for treated that at least electric analoging signal carries out at homogenization all the way to described
Reason, obtains homogenization treated at least electric analoging signal all the way, and by the homogenization treated at least electrical analogue all the way
Signal is conveyed to the ADC.
Further, the data cleansing device, is also used to:
Determine it is described at least the range of electric analoging signal is inconsistent all the way when, by the ADC to described control unit
Send feedback message, wherein feedback message characterization is described, and at least the range of electric analoging signal is inconsistent all the way；
Described control unit is also used to send the process instruction, the processing to the input channel range encoder
It include per the range information of selector all the way and per the corresponding relationship between the semaphore of electric analoging signal all the way in instruction；
The input channel range encoder, specifically at least electric mould all the way described in obtaining in the data cleansing device
Quasi- signal；According to the corresponding relationship in the process instruction, electric analoging signal is handled all the way to described at least, is obtained
Treated at least electric analoging signal all the way.
It further, include at least the believing in electric analoging signal per electrical analogue all the way all the way in the feedback message
Number semaphore；
Described control unit is also used to disappear by the network communication chip to the receiving device transmission feedback
Breath；
The receiving device, for sending the amount per selector all the way in the multiple selector to described control unit
Journey information；
Described control unit, being also used to will be described per the range information of selector all the way and described per electric analoging signal all the way
Semaphore corresponded to, obtain the corresponding relationship.
Further, described device, further includes: watchdog module；
Wherein, the watchdog module is connect with described control unit；
The watchdog module, for when detecting that described control unit is accidentally shut down, by described control unit weight
New starting.
Further, described device, further includes: power circuit；
Wherein, the power circuit is connect with described control unit, and the power circuit is connect with external power supply.
Further, described device, further includes: dc chopper；
Wherein, the junction that the dc chopper is connected to the power circuit and described control unit is attached；
The dc chopper, for adjusting the duty ratio of the direct current on the power circuit, to control the power supply
Size of the circuit output to the effective voltage of described control unit.
Further, the data cleansing device is connect by the first electrical isolation circuit with described control unit；
Described control unit is also used to send homogenization control instruction to the data cleansing device, so that the data are clear
Washing device, electric analoging signal carries out homogenization processing all the way to described at least according to the homogenization control instruction.
Further, the multiple selector is connect by the first electrical isolation circuit with described control unit；
Described control unit is also used to send selection instruction to the multiple selector, so that the multiple selector root
The analog input signal for selecting at least one input equipment to be exported according to the selection instruction.
Further, the network communication chip is Machine To Machine M2M network communication chip.
Further, described control unit is also used to:
The control instruction that the receiving device is sent is received by the network communication chip, wherein the control instruction
It indicates and opens or closes at least one described relay；
The control instruction is parsed, the control instruction after being parsed, and by the control instruction after the parsing
It is sent to the relay by three adapter tubes, so that the relay opens or closes.
The solution have the advantages that: by providing by control unit, network communication chip, input unit and at least one
The data acquisition device that a relay circuit structure is constituted, input unit include multiple selector, data cleansing device and mould/
Number converter ADC；Data cleansing device is connected between multiple selector and ADC, and ADC passes through the first electrical isolation circuit and control
Unit connection, network communication chip are connect by the second electrical isolation circuit with control unit；At least one relay circuit knot
Each of structure relay circuit structure includes relay and triode, and relay is connect with triode, and triode passes through the
Three electrical isolation circuits are connect with control unit；Multiple selector receives analog input signal, and analog input signal is turned
It is changed at least electric analoging signal all the way, and will at least electric analoging signal is conveyed to data cleansing device all the way；Data cleansing device is to extremely
Few electric analoging signal all the way carries out homogenization processing, obtains homogenization treated at least electric analoging signal all the way, wherein uniform
Change that treated at least each of electric analoging signal road electric analoging signal amplification factor having the same and polarization value all the way,
And will homogenization treated that at least electric analoging signal is conveyed to ADC all the way；ADC is to homogenization treated at least electric mould all the way
Quasi- signal carries out analog-to-digital conversion process, generates at least digital signal all the way, and will at least to be conveyed to control single for digital signal all the way
Member；Control unit handles the translation that at least digital signal carries out digital sensors numerical value all the way, generates digital data, and
Digital data is sent to receiving device by network communication chip.So as to handle analog input signal,
Obtain the digital data of actual environment.Data acquisition device provided in this embodiment is a kind of gateway, it does not need deployment meter
Calculation machine can satisfy the demand of particular surroundings, such as in environment such as agricultural, the monitoring of combustion gas well.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of data acquisition device provided by the embodiments of the present application；
Fig. 2 is the structural schematic diagram of another data acquisition device provided by the embodiments of the present application.
Through the above attached drawings, it has been shown that the specific embodiment of the disclosure will be hereinafter described in more detail.These attached drawings
It is not intended to limit the scope of this disclosure concept by any means with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate the concept of the disclosure.
Appended drawing reference:
11: control unit；12: network communication chip；
13: input unit；14: relay circuit structure；
15: multiple selector；16: data cleansing device；
17:ADC；18: the first electrical isolation circuits；
19: the second electrical isolation circuits；20: triode；
21: input channel range encoder；22: watchdog module；
23: power circuit；24: dc chopper；
25: third electrical isolation circuit.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
The specific application scenarios of the present invention: with the development of communication technology, in all kinds of environment, all there are acquisition data
Demand.Currently, the data transmission after processing is connect after data being acquired and be handled using data collection system
Receiving end, such as be sent to server etc..In the prior art, it provides a kind of based on hybrid computer acquisition system.It by
General purpose computer is connected with single-chip microcontroller by STD bus, wherein STD bus can be using the total of RS-485 standard
Line.The part that single-chip computer and its peripheral circuit is constituted is to aim at the requirements of functions such as data acquisition and configure, and computer undertakes
The tasks such as the human-computer dialogue of data collection system, the calculating of large capacity, record, printing, graphical display.However in the prior art,
Since single-chip microcontroller needs to communicate by RS-485 interface with computer, need to need deploying computer in collection site is changed planes,
And then it is not able to satisfy the demand of particular surroundings, such as be not easy to setting meter in the environment such as agricultural, the monitoring of combustion gas well, these environment
Calculation machine.Also, data communication is carried out using 433MHz wireless mode, data communication is unstable, is easy to be interfered by surrounding enviroment.
Data acquisition device provided by the invention, it is intended to solve the technical problem as above of the prior art.
How to be solved with technical solution of the specifically embodiment to technical solution of the present invention and the application below above-mentioned
Technical problem is described in detail.These specific embodiments can be combined with each other below, for the same or similar concept
Or process may repeat no more in certain embodiments.Below in conjunction with attached drawing, the embodiment of the present invention is described.
Fig. 1 is a kind of structural schematic diagram of data acquisition device provided by the embodiments of the present application.As shown in Figure 1, the device
Include:
Control unit 11, network communication chip 12, input unit 13 and at least one relay circuit structure 14,
In, input unit 13 includes multiple selector 15, data cleansing device 16 and A/D converter (Analog-to-Digital
Converter, abbreviation ADC) 17.
Wherein, data cleansing device 16 is connected between multiple selector 15 and ADC17, and ADC17 passes through the first electrical isolation
Circuit 18 is connect with control unit 11, and network communication chip 12 is connect by the second electrical isolation circuit 19 with control unit 11.
Each of at least one relay circuit structure 14 relay circuit structure 14 includes relay and triode
20, relay is connect with triode 20, and triode 20 is connect by third electrical isolation circuit 25 with control unit 11.
Multiple selector 15 is converted to analog input signal at least electric all the way for receiving analog input signal
Analog signal, and will at least electric analoging signal is conveyed to data cleansing device 16 all the way.
Data cleansing device 16, after at least electric analoging signal carries out homogenization processing all the way, obtaining homogenization processing
At least electric analoging signal all the way, wherein homogenization treated at least each of electric analoging signal road electrical analogue all the way
Signal amplification factor having the same and polarization value, and will homogenization treated that at least electric analoging signal is conveyed to all the way
ADC17。
ADC17, for homogenization treated at least all the way electric analoging signal carry out analog-to-digital conversion process, generate at least
Digital signal all the way, and will at least digital signal is conveyed to control unit 11 all the way.
Control unit 11 is generated for handling the translation that at least digital signal carries out digital sensors numerical value all the way
Digital data, and digital data is sent to by receiving device by network communication chip 12.
In the present embodiment, specifically, data acquisition device provided in this embodiment is by control unit 11, network communication core
Piece 12, input unit 13 and at least one relay circuit structure 14 are constituted；Wherein, input unit 13 includes multi-path choice
Device 15, data cleansing device 16 and ADC17；Each of at least one relay circuit structure 14 relay circuit structure
14 include a relay and a triode 20.Preferably, the number of relay circuit structure 14 is two.
Multiple selector 15 is connect at least one input equipment；And by multiple selector 15 and data cleansing device 16
Connection.Data cleansing device 16 is connect with ADC17.
ADC17 is connect by the first electrical isolation circuit 18 with control unit 11, and then ADC17 and control unit 11 carry out
Electrical isolation.Network communication chip 12 is connect by the second electrical isolation circuit 19 with control unit 11, and then network communication core
Piece 12 and control unit 11 carry out electrical isolation.
For each relay circuit structure 14, relay is connect with triode 20, and triode 20 passes through
Third electrical isolation circuit 25 is connect with control unit 11.
Each of at least one input equipment input equipment inputs analog input all the way into multiple selector 15
Signal, and then multiple selector 15 gets at least analog input signal all the way.For example, getting eight road analog inputs letter
Number.
Multiple selector 15 will at least analog input signal be converted at least electric analoging signal all the way all the way, then multichannel
Selector 15 will at least electric analoging signal be conveyed to data cleansing device 16 all the way.
Data cleansing device 16 is receiving at least all the way after electric analoging signal of the conveying of multiple selector 15, at least one
Road electric analoging signal carries out homogenization processing, then obtains homogenization treated at least electric analoging signal all the way, wherein uniform
Change that treated at least each of electric analoging signal road electric analoging signal amplification factor having the same and polarization value all the way；
Then will uniform that treated at least electric analoging signal all the way of data cleansing device 16, is conveyed to ADC17.
Treated at least all the way after electric analoging signal in the homogenization for receiving the conveying of data cleansing device 16 by ADC17,
To the homogenization, treated that at least electric analoging signal carries out analog-to-digital conversion process all the way, generates at least digital signal all the way；So
Afterwards ADC17 will at least digital signal all the way, be conveyed to control unit 11.
Control unit 11 is receiving at least all the way after digital signal of ADC17 conveying, believes an at least railway digital
Number carry out digital quantity translation processing, that is, carry out digital sensors numerical value translation, and then generate digital data.
For example, the sensing data of digital quantity is translated into the digital data of actual environment by control unit 11, than
Degree Celsius of such as air themperature.
Then, digital data is sent to network communication chip 12 by control unit 11；Then, network communication chip 12 will
Digital data is sent to receiving device.
For example, digital data is sent to server data and is connect by control unit 11 by network communication chip 12
Receive program.
The present embodiment by provide by control unit 11, network communication chip 12, input unit 13 and at least one after
Appliance circuit structure 14 constitute data acquisition device, input unit 13 include multiple selector 15, data cleansing device 16 and
A/D converter ADC17；Data cleansing device 16 is connected between multiple selector 15 and ADC17, and ADC17 is electrical by first
Isolation circuit 18 is connect with control unit 11, and network communication chip 12 is connected by the second electrical isolation circuit 19 with control unit 11
It connects；Each of at least one relay circuit structure 14 relay circuit structure 14 includes relay and triode 20, after
Electric appliance is connect with triode 20, and triode 20 is connect by third electrical isolation circuit 25 with control unit 11；Multiple selector
15 receive analog input signals, analog input signal are converted at least electric analoging signal all the way, and will be at least electric all the way
Analog signal is conveyed to data cleansing device 16；Data cleansing device 16 is obtained at least electric analoging signal carries out homogenization processing all the way
To homogenization treated at least electric analoging signal all the way, wherein treated for homogenization at least all the way in electric analoging signal
Each road electric analoging signal amplification factor having the same and polarization value, and will homogenization treated at least electrical analogue all the way
Signal is conveyed to ADC17；ADC17 to homogenization treated at least all the way electric analoging signal carry out analog-to-digital conversion process, generate
At least digital signal all the way, and will at least digital signal is conveyed to control unit 11 all the way；Control unit 11 is to an at least number
Word signal carries out the translation processing of digital sensors numerical value, generates digital data, and will count by network communication chip 12
Word amount data are sent to receiving device.So as to handle analog input signal, the digital quantity of actual environment is obtained
Data.Data acquisition device provided in this embodiment is a kind of gateway, it does not need deploying computer, can satisfy particular surroundings
Demand, such as in agricultural, combustion gas well monitoring etc. environment.
Fig. 2 is the structural schematic diagram of another data acquisition device provided by the embodiments of the present application.Embodiment shown in Fig. 1
On the basis of, as shown in Fig. 2, the device, further includes: input channel range encoder 21；Wherein, input channel range encoder
21 are connected between control unit 11 and data cleansing device 16.
Input channel range encoder 21 for obtaining at least electric analoging signal all the way in data cleansing device 16, and connects
Receive the process instruction that control unit 11 is sent；It is handled according to process instruction at least electric analoging signal is handled all the way
At least electric analoging signal all the way afterwards, wherein treated at least letter per electric analoging signal all the way of electric analoging signal all the way
Number amount is consistent；And at least electric analoging signal is conveyed to data cleansing device 16 all the way by treated.
Data cleansing device 16 is obtained specifically for treated, at least electric analoging signal carries out homogenization processing all the way
Homogenization treated at least electric analoging signal all the way, and will homogenization treated that at least electric analoging signal is conveyed to all the way
ADC17。
Data cleansing device 16, is also used to: when determining that at least the range of electric analoging signal is inconsistent all the way, passing through ADC17
Feedback message is sent to control unit 11, wherein at least the range of electric analoging signal is inconsistent all the way for feedback message characterization.
Correspondingly, control unit 11, it is also used to send process instruction to input channel range encoder 21, in process instruction
Including per the range information of selector all the way and per the corresponding relationship between the semaphore of electric analoging signal all the way.
Correspondingly, input channel range encoder 21, specifically for obtaining at least electric mould all the way in data cleansing device 16
Quasi- signal；According to the corresponding relationship in process instruction, at least electric analoging signal is handled all the way, obtain that treated at least
Electric analoging signal all the way.
It include at least semaphore per electric analoging signal all the way in electric analoging signal all the way in feedback message.
Correspondingly, control unit 11, is also used to send feedback message to receiving device by network communication chip 12.
Correspondingly, receiving device, for sending the amount per selector all the way in multiple selector 15 to control unit 11
Journey information.
Correspondingly, control unit 11, being also used to will be per the range information of selector all the way and per electric analoging signal all the way
Semaphore is corresponded to, and corresponding relationship is obtained.
Device provided in this embodiment, further includes: watchdog module 22；Wherein, watchdog module 22 and control unit 11
Connection.
Watchdog module 22, for when detecting that control unit 11 is accidentally shut down, control unit 11 to be restarted.
Device provided in this embodiment, further includes: power circuit 23；Wherein, power circuit 23 is connect with control unit 11,
And power circuit 23 is connect with external power supply.
Device provided in this embodiment, further includes: dc chopper 24 (Current Direct/Current Direct,
Abbreviation DC/DC)；Wherein, the junction that dc chopper 24 is connected to power circuit 23 and control unit 11 is attached.
Dc chopper 24, it is defeated with controlling power circuit 23 for adjusting the duty ratio of the direct current on power circuit 23
Out to the size of the effective voltage of control unit 11.
Data cleansing device 16 is connect by the first electrical isolation circuit 18 with control unit 11；Control unit 11, is also used to
Homogenization control instruction is sent to data cleansing device 16, so that data cleansing device 16 is according to homogenization control instruction at least all the way
Electric analoging signal carries out homogenization processing.
Multiple selector 15 is connect by the first electrical isolation circuit 18 with control unit 11；Control unit 11, is also used to
Selection instruction is sent to multiple selector 15, so that multiple selector 15 selects at least one input equipment institute according to selection instruction
The analog input signal of output.
Network communication chip 12 is Machine To Machine (Machine to Machine, abbreviation M2M) network communication chip 12.
Control unit 11, is also used to: receiving the control instruction that receiving device is sent by network communication chip 12, wherein
Control instruction, which indicates, opens or closes at least one relay；Control instruction is parsed, the control after being parsed refers to
It enables, and the control instruction after parsing is sent to relay by three adapter tubes, so that relay opens or closes.
In the present embodiment, specifically, further comprising an input channel in data acquisition device provided in this embodiment
Range encoder 21；One end of input channel range encoder 21 is connect with control unit 11, input channel range encoder 21
The other end connect with data cleansing device 16.Input channel range encoder 21 it is available into data cleansing device 16 at least
Electric analoging signal all the way, and the process instruction that reception control unit 11 is sent；Input channel range encoder 21 is according to processing
Instruction, at least electric analoging signal is handled all the way, obtain that treated at least electric analoging signal all the way, wherein after processing
At least the semaphore per electric analoging signal all the way of electric analoging signal is consistent all the way；Input channel range encoder 21 will be handled
Afterwards at least electric analoging signal is conveyed to data cleansing device 16 all the way；Then, data cleansing device 16 to treated at least all the way
Electric analoging signal carries out homogenization processing, obtains homogenization treated at least electric analoging signal all the way；Data cleansing device 16 will
Treated that at least electric analoging signal is conveyed to ADC17 all the way for homogenization.Optionally, network communication chip 12 is Machine To Machine
M2M network communication chip 12.Optionally, control unit 11 is microprocessor (Advanced RISC Machines, abbreviation
ARM), for example, ARM uses 32 reduced instruction sets (Reduced Instruction Set Computer, abbreviation RISC)
ARM chip.
Specifically, data cleansing device 16 is determining at least range of the road electric analoging signal Zhong Ge electric analoging signal all the way
When inconsistent, feedback message is sent to ADC17 according to washer, at least the range of electric analoging signal is not all the way for feedback message characterization
Unanimously；Then, feedback message is sent to control unit 11 by ADC17.Then, control unit 11 is receiving ADC17 transmission
After feedback message, control unit 11 sends a process instruction to input channel range encoder 21, wraps in the process instruction
It includes per the range information of selector all the way and per the corresponding relationship between the semaphore of electric analoging signal all the way.Then, input is logical
Road range encoder 21 has got at least electric analoging signal all the way in data cleansing device 16, thus input channel range
After encoder 21 receives the process instruction of the transmission of control unit 11, input channel range encoder 21 can refer to according to processing
Corresponding relationship in order, at least electric analoging signal is handled all the way, obtain that treated at least electric analoging signal all the way.So
Afterwards, by treated, at least electric analoging signal is conveyed to data cleansing device 16 to input channel range encoder 21 all the way；Data are clear
It washes that device 16 can at least electric analoging signal carries out homogenization processing all the way to treated, obtains homogenization treated at least
Electric analoging signal all the way, and will homogenization treated that at least electric analoging signal is conveyed to ADC17 all the way.
Alternatively, data cleansing device 16 is determining that at least the range of the road electric analoging signal Zhong Ge electric analoging signal is different all the way
When cause, feedback message is sent to ADC17 according to washer, at least the range of electric analoging signal is different all the way for feedback message characterization
It causes, and includes at least semaphore per electric analoging signal all the way in electric analoging signal all the way in feedback message；Then,
Feedback message is sent to control unit 11 by ADC17.Then, feedback message is sent to network communication chip by control unit 11
12, feedback message is sent to receiving device again by network communication chip 12.Then receiving device is after receiving feedback message,
The range information per selector all the way in multiple selector 15 is sent to control unit 11.Then, due to control unit 11 with
And at least semaphore per electric analoging signal all the way in electric analoging signal all the way has been got, so that control unit 11 can will
It is corresponded per the range information of selector all the way with the semaphore per electric analoging signal all the way, obtains a corresponding pass
System.Then, control unit 11 sends a process instruction to input channel range encoder 21, includes each in the process instruction
Corresponding relationship between the range information of road selector and every semaphore of electric analoging signal all the way.Then, input channel range
Encoder 21 has got at least electric analoging signal all the way in data cleansing device 16, thus input channel range encoder
After 21 receive the process instruction of the transmission of control unit 11, input channel range encoder 21 can be according in process instruction
Corresponding relationship, at least electric analoging signal is handled all the way, obtain that treated at least electric analoging signal all the way.Then, defeated
Entering channel range encoder 21, at least electric analoging signal is conveyed to data cleansing device 16 all the way by treated；Data cleansing device 16
Can to treated, at least electric analoging signal carries out homogenization processing all the way, obtain homogenization treated and is at least electric all the way
Analog signal, and will homogenization treated that at least electric analoging signal is conveyed to ADC17 all the way.
Also there is watchdog module 22, dc chopper 24, power circuit in data acquisition device provided in this embodiment
23；Watchdog module 22 is connect with control unit 11；Power circuit 23 is connect with control unit 11, and power circuit 23 and outer
The connection of portion's power supply；By the junction that dc chopper 24 is connected to power circuit 23 and control unit 11 is attached.To outer
Portion's power supply can provide electric energy by power circuit 23 for each structure in data acquisition device.Watchdog module 22 can examined
When measuring control unit 11 and being accidentally shut down, control unit 11 is restarted.The adjustable power circuit of dc chopper 24
The duty ratio of direct current on 23, and then the output of controlling power circuit 23 is to the size of the effective voltage of control unit 11.
Also, as shown in Fig. 2, can by data cleansing device 16 by the first electrical isolation circuit 18 and control unit 11 into
Row connection；To which control unit 11 can send homogenization control instruction, then data cleansing device 16 to data cleansing device 16
According to the homogenization control instruction at least electric analoging signal carries out homogenization processing all the way.As shown in Fig. 2, multichannel can be selected
Device 15 is selected to be attached by the first electrical isolation circuit 18 with control unit 11；To which control unit 11 can be to multi-path choice
Device 15 sends selection instruction, thus the mould that multiple selector 15 selects at least one input equipment to be exported according to the selection instruction
Analog quantity input signal, i.e. multiple selector 15 select the analog input signal which input equipment is exported, wherein one
A input equipment exports analog input signal all the way.
In the present embodiment, receiving device can send control instruction to network communication chip 12, wherein reception is set
Standby can be back-end server.Then control instruction is sent to control unit 11 by network communication chip 12, wherein control instruction
It indicates and opens or closes at least one relay.Then control unit 11 parses the control instruction received, obtains
Control instruction after parsing；Control unit 11 is according to the address choice code in the control instruction after parsing, by the control after parsing
Instruction is sent to relay corresponding with triode 20 by triode 20；Then, relay completes corresponding movement, i.e. relay
Device opens or closes；Then relay sends feedback signal to control unit 11 by triode 20 corresponding with relay.
The present embodiment is by providing by power circuit 23, input unit 13, input channel range encoder 21, control unit
11, the data acquisition device that network communication chip 12 is constituted, wherein power circuit 23 is connect with control unit 11, input unit
13 are connect by the first electrical isolation circuit 18 with control unit 11, and network communication chip 12 passes through the second electrical isolation circuit 19
It is connect with control unit 11；Input unit 13 includes multiple selector 15, data cleansing device 16 and ADC17；ADC17 is logical
The first electrical isolation circuit 18 is crossed to connect with control unit 11.So as to handle analog input signal, showed
The digital data of real environment；Also, it, can be at least when the semaphore of electric analoging signal at least all the way is inconsistent
The semaphore of electric analoging signal all the way is adjusted.To the gateway provided, deploying computer is not needed, it is special to can satisfy
The demand of environment, such as in environment such as agricultural, the monitoring of combustion gas well；Also, it is logical to carry out data using M2M network communication chip 12
Letter, the interface strong antijamming capability of M2M network communication chip 12 can be to avoid industry spot signal to microcontroller communication interface
Influence, data communication stablize；Also, watchdog module 22 is provided, when gateway exception, gateway is opened again
It is dynamic；DC/DC can carry out over-voltage, the protection of overcurrent to gateway.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.The present invention is directed to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claims are pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by appended claims
System.
Claims (11)
1. a kind of data acquisition device characterized by comprising
Control unit, network communication chip, input unit and at least one relay circuit structure, wherein the input is single
Member includes multiple selector, data cleansing device and A/D converter ADC；
Wherein, the data cleansing device is connected between the multiple selector and the ADC, and the ADC is electrical by first
Isolation circuit is connect with described control unit, and the network communication chip passes through the second electrical isolation circuit and described control unit
Connection；
Each of at least one relay circuit structure relay circuit structure includes relay and triode, described
Relay is connect with the triode, and the triode is connect by third electrical isolation circuit with described control unit；
The multiple selector is converted to the analog input signal at least all the way for receiving analog input signal
Electric analoging signal, and electric analoging signal is conveyed to the data cleansing device all the way by described at least；
The data cleansing device obtains homogenization processing for electric analoging signal to carry out homogenization processing all the way to described at least
At least electric analoging signal all the way afterwards, wherein the homogenization treated at least each of electric analoging signal road all the way
Electric analoging signal amplification factor having the same and polarization value, and by the homogenization treated at least electric analoging signal all the way
It is conveyed to the ADC；
The ADC, for it is described homogenization treated at least all the way electric analoging signal carry out analog-to-digital conversion process, generate extremely
Few digital signal all the way, and digital signal is conveyed to described control unit all the way by described at least；
Described control unit, it is raw for handling the translation that digital signal carries out digital sensors numerical value all the way described at least
The digital data is sent to receiving device at digital data, and by the network communication chip.
2. the apparatus according to claim 1, which is characterized in that described device, further includes: input channel range encoder；
Wherein, the input channel range encoder is connected between described control unit and the data cleansing device；
The input channel range encoder, at least electric analoging signal all the way described in obtaining in the data cleansing device,
And receive the process instruction of described control unit transmission；According to the process instruction, to it is described at least all the way electric analoging signal into
Row processing, obtain that treated at least electric analoging signal all the way, wherein treated at least electric analoging signal all the way it is every
The semaphore of electric analoging signal is consistent all the way；And treated that at least to be conveyed to the data clear for electric analoging signal all the way by described
Wash device；
The data cleansing device is obtained specifically for treated that at least electric analoging signal carries out homogenization processing all the way to described
To homogenization treated at least electric analoging signal all the way, and by the homogenization, treated that at least electric analoging signal is defeated all the way
Give the ADC.
3. the apparatus of claim 2, which is characterized in that the data cleansing device is also used to:
Determine it is described at least the range of electric analoging signal is inconsistent all the way when, sent by the ADC to described control unit
Feedback message, wherein feedback message characterization is described, and at least the range of electric analoging signal is inconsistent all the way；
Described control unit is also used to send the process instruction, the process instruction to the input channel range encoder
In include per the range information of selector all the way and per the corresponding relationship between the semaphore of electric analoging signal all the way；
The input channel range encoder, specifically at least electrical analogue is believed all the way described in obtaining in the data cleansing device
Number；According to the corresponding relationship in the process instruction, electric analoging signal is handled all the way to described at least, is obtained described
Treated at least electric analoging signal all the way.
4. device according to claim 3, which is characterized in that include at least electric mould all the way in the feedback message
The semaphore per electric analoging signal all the way in quasi- signal；
Described control unit is also used to send the feedback message to the receiving device by the network communication chip；
The receiving device, for sending the range letter per selector all the way in the multiple selector to described control unit
Breath；
Described control unit is also used to the letter by described per the range information of selector all the way with every electric analoging signal all the way
Number amount is corresponded to, and the corresponding relationship is obtained.
5. the apparatus according to claim 1, which is characterized in that described device, further includes: watchdog module；
Wherein, the watchdog module is connect with described control unit；
The watchdog module, for when detecting that described control unit is accidentally shut down, described control unit to be opened again
It is dynamic.
6. the apparatus according to claim 1, which is characterized in that described device, further includes: power circuit；
Wherein, the power circuit is connect with described control unit, and the power circuit is connect with external power supply.
7. device according to claim 6, which is characterized in that described device, further includes: dc chopper；
Wherein, the junction that the dc chopper is connected to the power circuit and described control unit is attached；
The dc chopper, for adjusting the duty ratio of the direct current on the power circuit, to control the power circuit
It exports to the size of the effective voltage of described control unit.
8. device according to claim 1-7, which is characterized in that the data cleansing device passes through first electricity
Gas isolation circuit is connect with described control unit；
Described control unit is also used to send homogenization control instruction to the data cleansing device, so that the data cleansing device
According to the homogenization control instruction, electric analoging signal carries out homogenization processing all the way to described at least.
9. device according to claim 1-7, which is characterized in that the multiple selector passes through first electricity
Gas isolation circuit is connect with described control unit；
Described control unit is also used to send selection instruction to the multiple selector, so that the multiple selector is according to institute
State the analog input signal that selection instruction selects at least one input equipment to be exported.
10. device according to claim 1-7, which is characterized in that the network communication chip is machine to machine
Device M2M network communication chip.
11. device according to claim 1-7, which is characterized in that described control unit is also used to:
The control instruction that the receiving device is sent is received by the network communication chip, wherein the control instruction instruction
Open or close at least one described relay；
The control instruction is parsed, the control instruction after being parsed, and the control instruction after the parsing is passed through
Three adapter tubes are sent to the relay, so that the relay opens or closes.
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| CN201910035814.1A CN109828494A (en) | 2019-01-15 | 2019-01-15 | Data acquisition device |
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| CN201910035814.1A CN109828494A (en) | 2019-01-15 | 2019-01-15 | Data acquisition device |
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| CN203551134U (en) * | 2013-09-30 | 2014-04-16 | 杭州开源电脑技术有限公司 | Multipath analog quantity industrial acquisition device |
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Application publication date: 20190531 |