CN106941458A - The method and device of data transfer - Google Patents

The method and device of data transfer Download PDF

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Publication number
CN106941458A
CN106941458A CN201710092145.2A CN201710092145A CN106941458A CN 106941458 A CN106941458 A CN 106941458A CN 201710092145 A CN201710092145 A CN 201710092145A CN 106941458 A CN106941458 A CN 106941458A
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CN
China
Prior art keywords
data
server
data message
class
sources information
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CN201710092145.2A
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Chinese (zh)
Inventor
刘往
吴刚
刘文豪
常仁杰
聂鑫
国承斌
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Shenzhen Mixlinker Network Co Ltd
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Shenzhen Mixlinker Network Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201710092145.2A priority Critical patent/CN106941458A/en
Publication of CN106941458A publication Critical patent/CN106941458A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/24Traffic characterised by specific attributes, e.g. priority or QoS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/20Traffic policing

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)
  • Computer And Data Communications (AREA)

Abstract

The present invention is applied to areas of information technology there is provided a kind of method and device of data transfer, including:Data type is divided to the data message gathered needed for data acquisition equipment, and the corresponding transmission strategy of each data type is set;According to the corresponding tactful data information transfer by this kind of data type of transmission of the data type to server.The present invention realizes that solving existing personalized recommendation technology has the problem of Sparse, cold start-up, improves the accuracy of project recommendation.The present invention is conducive to simplifying analysis operation of the server to data message, further increases treatment effeciency of the server to data, and network traffic flow when reducing data acquisition equipment reported data, significantly reduces flow waste.

Description

The method and device of data transfer
Technical field
The invention belongs to areas of information technology, more particularly to a kind of method and device of data transfer.
Background technology
Popularization and application of the Internet of Things on industrial equipment so that user can in real time be supervised to the industrial equipment at scene Control.However as increasing for field apparatus, the data volume that data acquisition equipment is gathered is also increasing.In the prior art, number The real time data collected is uploaded toward server without exception according to collecting device, network traffic flow is not only added, causes Great flow is wasted, and is unfavorable for the data that industrial Internet of Things front-end server uploaded to data acquisition equipment and is combed The operations such as reason, analysis, statistics, the treatment effeciency of server is low.
The content of the invention
In consideration of it, the embodiments of the invention provide a kind of method and device of data transfer, to reduce data acquisition equipment Network traffic flow, reduction flow during reported data are wasted, and improve treatment effeciency of the server to data.
First aspect includes there is provided a kind of method of data transfer, methods described:
Data type is divided to the data message gathered needed for data acquisition equipment, and each data type correspondence is set Transmission strategy;
According to the corresponding tactful data information transfer by this kind of data type of transmission of the data type to server.
Further, it is described to pass the data message of this kind of data type according to the corresponding transmission strategy of the data type Transporting to server includes:
When collecting primary sources information, the first kind array element in two-dimensional array is updated to what is collected Primary sources information;
The primary sources information in the first kind array element and the first kind are identified according to default time interval Together upload onto the server;
Wherein, the primary sources information includes state class data message.
Further, it is described to pass the data message of this kind of data type according to the corresponding transmission strategy of the data type Transporting to server includes:
When collecting secondary sources information, by the secondary sources information and the last he second-class number collected It is believed that breath is compared;
If the two is differed, the secondary sources information and Equations of The Second Kind that currently collect mark are together uploaded to service Device;
Wherein, the secondary sources information includes event class data message, failure classes data message, alarm class data letter Breath, setting class data message.
Further, methods described also includes:
If the two is differed, the change section and the change section in the secondary sources information collected are obtained two Correspondence position in dimension group;
The correspondence position of the change section and the change section in the two-dimensional array is together uploaded onto the server.
Further, it is described to pass the data message of this kind of data type according to the corresponding transmission strategy of the data type Transporting to server includes:
The data requesting instructions issued according to server, gather the 3rd class data message, by the 3rd class currently collected Data message and the 3rd class mark are together uploaded to the server;
Wherein, the 3rd class data message includes request class data message.
Second aspect includes there is provided a kind of device of data transfer, described device:
Division module, for dividing data type to the data message gathered needed for data acquisition equipment, and sets each Plant the corresponding transmission strategy of data type;
Transport module, for passing the data message of this kind of data type according to the corresponding transmission strategy of the data type Transport to server.
Further, the transport module includes:
Updating block, for when collecting primary sources information, by the first kind array element in two-dimensional array more The new primary sources information to be collected;
First transmission unit, for according to default time interval by the primary sources in the first kind array element Information and first kind mark together upload onto the server;
Wherein, the primary sources information includes state class data message.
Further, the transport module includes:
Comparing unit, for when collecting secondary sources information, the secondary sources information to be adopted with the last time The secondary sources information collected is compared;
Second transmission unit, if differed for the two, by the secondary sources information and Equations of The Second Kind that currently collect Mark together uploads onto the server;
Wherein, the secondary sources information includes event class data message, failure classes data message, alarm class data letter Breath, setting class data message.
Further, the transport module also includes:
Acquiring unit, if differed for the two, obtain change section in the secondary sources information that collects and Correspondence position of the change section in two-dimensional array;
Second transmission unit is additionally operable to, by pair of the change section and the change section in the two-dimensional array Position is answered together to upload onto the server.
Further, the transport module includes:
3rd transmission unit, for the data requesting instructions issued according to server, gathers the 3rd class data message, ought Before the 3rd class data message that collects and the 3rd class mark be together uploaded to the server;
Wherein, the 3rd class data message includes request class data message.
Compared with prior art, the embodiment of the present invention to the data message gathered needed for data acquisition equipment by dividing number According to type, and the corresponding transmission strategy of each data type is set;Then when transmitting data letter, according to the data type The corresponding strategy that transmits is by the data information transfer of this kind of data type to server;So as to facilitate server to data message Analyzed and processed, further increased treatment effeciency of the server to data, and reduce data acquisition equipment reported data When network traffic flow, significantly reduce flow waste.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is that the method for data transfer provided in an embodiment of the present invention realizes flow chart;
Fig. 2 is the composition structure chart of the device of data transfer provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
The embodiment of the present invention sets every by dividing data type to the data message gathered needed for data acquisition equipment A kind of data type is corresponding to transmit strategy;Then when transmitting data letter, according to the corresponding transmission strategy of the data type By the data information transfer of this kind of data type to server;Data message is analyzed and processed so as to facilitate server, Network transmission stream when further increasing treatment effeciency of the server to data, and reducing data acquisition equipment reported data Amount, significantly reduces flow waste.The embodiment of the present invention additionally provides corresponding device, carries out individually below specifically It is bright.
What Fig. 1 showed the method for data transfer provided in an embodiment of the present invention realizes flow.
In embodiments of the present invention, the method for the data transfer is applied in the data acquisition equipment of industrial Internet of Things, The data acquisition equipment includes but is not limited to computer, server.
Refering to Fig. 1, the method for the data transfer includes:
In step S101, data type is divided to the data message gathered needed for data acquisition equipment, and set each Plant the corresponding transmission strategy of data type.
In embodiments of the present invention, the data message of collection needed for the data acquisition equipment is needed including data acquisition equipment Reading or all data of Reverse Turning Control.Wherein, the data that need to be read are gathered simultaneously for data acquisition equipment from industrial equipment The real time data of upload server, the data of Reverse Turning Control refer to that the instruction that data acquisition equipment is issued according to server is gathered Real time data.Alternatively, the data acquisition equipment constantly can gather real by the way of poll from industrial equipment When data.
When it is determined that gathered needed for data acquisition equipment data message after, then by the number gathered needed for data acquisition equipment It is believed that breath is divided into different data types, and determine the corresponding transmission strategy of each data type.
The data message that data acquisition equipment is collected is divided into primary sources information, second by the embodiment of the present invention Class data message and the 3rd class data message, wherein, primary sources information is uploaded to service by the way of periodic report Device.Secondary sources information uploads onto the server by the way of change is reported, i.e., two before and after secondary sources information is carried out It is secondary to compare, the data changed are uploaded onto the server after comparison.The number that 3rd class data message is then issued according to server Uploaded according to request instruction.
It is in 102 in step, according to the corresponding transmission strategy of the data type by the data message of this kind of data type Transmit to server.
In embodiments of the present invention, the data message that data acquisition equipment is collected is using two-dimensional array A's [m] [n] Mode is stored.The two-dimensional array is the array of a m rows n row, is the array constituted with array element.Each array element is used In a kind of data message of data type of storage.Data length in each array element is collected according to data acquisition equipment Every kind of data type data length depending on.
Alternatively, for primary sources information, the embodiment of the present invention has preset a time interval, in the same of gathered data Shi Qidong timers carry out timing.During the primary sources information that data acquisition equipment is collected every time, by two-dimensional array First kind array element is updated to collected primary sources information, i.e., the first kind directly once collected before covering Data message, to reduce the spatial cache of collecting device.After default time interval reaches, then by the he first-class numbert constituent element Primary sources information and first kind mark in element together upload onto the server.Exemplarily, the primary sources information It can be state class data message.The state class data message refers to that statement industrial equipment is believed in sometime state in which Breath, such as temperature, pressure, flow etc. are real-time dynamic changes.Before each acquisition state class data message, start timer Timing.Whenever state class data message is collected, then the first kind array element in two-dimensional array is updated to be collected State class data message.Simultaneously according to timer according to default time interval, by the in the first kind array element During one class data message and first kind mark together upload onto the server.Accordingly, the first kind mark can be state class Mark, such as " L ".
Alternatively, for secondary sources information, the data acquisition equipment is collected after secondary sources information every time, The secondary sources information that the secondary sources information currently gathered is collected with the last time is compared;If the two When differing, show that the secondary sources information currently gathered changes, then by the he second-class number currently collected it is believed that Breath and Equations of The Second Kind mark together upload onto the server.
Exemplarily, the secondary sources information can be event class data message, failure classes data message, alarm class Data message, setting class data message.The event class data message refers to state the event that industrial equipment sometime occurs Or the operation to industrial equipment, such as the design parameter that switch is opened, switch is closed, field apparatus is set.The failure classes Data message refers to the data produced when industrial equipment breaks down, such as failsafe valve, sensor fault etc..The alarm class Data message refers to the data produced when industrial equipment is alarmed, such as the alarm signal that default use time is produced when reaching Number, the alarm signal that produces when reaching of the alarm signal that produces when reaching of temperature threshold, pressure threshold.The setting class data letter Breath refers to the current set value of the specified parameter of industrial equipment, such as equipment mode, alarm threshold value.
Specifically, if the data message currently gathered is event class data message, described in currently being gathered The event class data message that event class data message is collected with the last time is compared;If the two is differed, will currently it adopt Event class data message and event the class mark collected together uploads onto the server;Correspondingly, the Equations of The Second Kind is designated event Class is identified, such as " E ".
If the data message currently gathered is failure classes data message, by the failure classes number currently gathered It is believed that the failure classes data message that breath is collected with the last time is compared;If the two is differed, the event that will currently collect Barrier class data message and failure classes mark together upload onto the server;Correspondingly, the Equations of The Second Kind is designated failure classes mark, than Such as " F ".
If the data message currently gathered is alarm class data message, by the alarm class number currently gathered It is believed that the alarm class data message that breath is collected with the last time is compared;If the two is differed, by the report currently collected Alert class data message and alarm class mark together upload onto the server;Correspondingly, the Equations of The Second Kind is designated alarm class mark, than Such as " A ".
If the data message currently gathered is setting class data message, by the setting class number currently gathered It is believed that the setting class data message that breath is collected with the last time is compared;If the two is differed, by setting for currently collecting Determine class data message and setting class mark together uploads onto the server.Correspondingly, the Equations of The Second Kind is designated setting class mark, than Such as " S ".
Exemplarily, one given below specific implementation example, it is assumed that the setting that data acquisition equipment is currently collected Class data message be y1y2y3y4y5, it is preceding once collected set class data message as y1y7y8y4y5, front and rear comparison it It can learn that the setting class data message currently collected is changed afterwards, then believe the data of the setting class currently gathered Breath y1y2y3y4y5 together uploads onto the server after taking setting class mark " S ".
In actual applications, because event class, failure classes, alarm class and setting class data message are not to change often , can just change once once in a while, the embodiment of the present invention is compared before and after being carried out by the secondary sources information that will collect, when and Only when the front and rear secondary sources information gathered twice is inconsistent, then by the secondary sources information upload service currently gathered Device, relative to prior art data acquisition equipment without exception by all data all upload servers collected, is effectively saved Data transfer throughput, it is to avoid repeatedly transmit the secondary sources information not changed.
As another preferred exemplary of the present invention, if secondary sources information changes, change can also be obtained The correspondence position of portion and the change section in two-dimensional array;And by the change section and the change section in the two dimension Correspondence position in array together uploads onto the server.With reference to the foregoing, it is assumed that what data acquisition equipment was currently collected sets Determine class data message for y1y2y3y4y5, it is preceding once collected set class data message as y1y7y8y4y5, front and rear comparison Can learn that the setting class data message currently collected is changed afterwards, then by change section y2y3 and its in the two dimension Correspondence position in array together uploads onto the server.
Alternatively, for the 3rd class data message, the request of data that the data acquisition equipment is issued according to server refers to Order the 3rd class data message of collection, is then together uploaded to institute by the 3rd class data message currently collected and the 3rd class mark State server;Herein, the 3rd class data message can be request class data message, accordingly, the 3rd class mark Identified for state class, such as " R ".
By the data transmission method described in the embodiment of the present invention, server is receiving the number of data acquisition equipment upload It is believed that after breath, you can different types of data message is distinguished according to the mark, according to the feature of each data type to data Information performs the operation such as different processing, classification, analyses, such as state diagram is drawn to state class data message, to event Class data message is made device action record, carries out reminder announced etc. to failure classes data message and alarm class data message, has Improve to effect the data-handling efficiency of server.Further, believe for event class, failure classes, alarm class, setting class data Breath, just uploads onto the server when it changes, effectively reduces network traffic data, and be saved greatly network flow Amount expense.
It should be understood that in the above-described embodiments, the size of the sequence number of each step is not meant to the priority of execution sequence, each step Rapid execution sequence should determine that the implementation process without tackling the embodiment of the present invention constitutes any limit with its function and internal logic It is fixed.
Fig. 2 shows the composition structure of the device of data transfer provided in an embodiment of the present invention, for convenience of description, only shows The part related to the embodiment of the present invention is gone out.
In embodiments of the present invention, described device is used for the method for realizing the data transfer described in above-mentioned Fig. 1 embodiments, It can be the unit of the software unit, hardware cell or software and hardware combining that are built in data acquisition equipment.The data acquisition Equipment includes but is not limited to computer, server etc..
Refering to Fig. 2, described device includes:
Division module 21, for dividing data type to the data message gathered needed for data acquisition equipment, and sets every A kind of data type is corresponding to transmit strategy;
Transport module 22, for according to the corresponding tactful data message by this kind of data type of transmission of the data type Transmit to server.
Alternatively, the transport module 22 includes:
Updating block 221, for when collecting primary sources information, by the first kind array element in two-dimensional array It is updated to collected primary sources information;
First transmission unit 222, for according to default time interval by the first kind in the first kind array element Data message and first kind mark together upload onto the server;
Wherein, the primary sources information includes state class data message.
Alternatively, the transport module 22 includes:
Comparing unit 223, for when collecting secondary sources information, by the secondary sources information and last time The secondary sources information collected is compared;
Second transmission unit 224, if differed for the two, by the secondary sources information currently collected and second Class mark together uploads onto the server;
Wherein, the secondary sources information includes event class data message, failure classes data message, alarm class data letter Breath, setting class data message.
Alternatively, second transmission unit 224 is additionally operable to:
If the two is differed, the change section and the change section in the secondary sources information collected are obtained two Correspondence position in dimension group;
The correspondence position of the change section and the change section in the two-dimensional array is together uploaded onto the server.
Alternatively, the transport module 22 includes:
3rd transmission unit 225, for the data requesting instructions issued according to server, gathers the 3rd class data message, The 3rd class data message currently collected and the 3rd class mark are together uploaded to the server;
Wherein, the 3rd class data message includes request class data message.
It should be noted that the device in the embodiment of the present invention can be used for realizing whole skills in above method embodiment Art scheme, the function of its each functional module can be implemented according to the method in above method embodiment, and it is implemented Process can refer to the associated description in examples detailed above, and here is omitted.
In summary, the embodiment of the present invention to the data message gathered needed for data acquisition equipment by dividing data class Type, and the corresponding transmission strategy of each data type is set;Then when transmitting data letter, according to data type correspondence Transmission strategy by the data information transfer of this kind of data type to server;Data message is carried out so as to facilitate server Analyzing and processing, further increases treatment effeciency of the server to data, and when reducing data acquisition equipment reported data Network traffic flow, significantly reduces flow waste.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein Member and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed The scope of the present invention.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the device of foregoing description With the specific work process of unit, the corresponding process in preceding method embodiment is may be referred to, be will not be repeated here.
, can be by it in several embodiments provided herein, it should be understood that disclosed method and device Its mode is realized.For example, device embodiment described above is only schematical, for example, stroke of the module, unit Point, only a kind of division of logic function can have other dividing mode when actually realizing, such as multiple units or component can To combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or beg for The coupling each other of opinion or direct-coupling or communication connection can be the INDIRECT COUPLINGs of device or unit by some interfaces Or communication connection, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs 's.
In addition, each functional unit, module in each embodiment of the invention can be integrated in a processing unit, Can be that unit, module are individually physically present, can also two or more units, module be integrated in a unit In.
If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can be with It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter Calculation machine software product is stored in a storage medium, including some instructions are make it that a computer equipment (can be individual People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described. And foregoing storage medium includes:USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

Claims (10)

1. a kind of method of data transfer, it is characterised in that methods described includes:
Data type is divided to the data message gathered needed for data acquisition equipment, and the corresponding biography of each data type is set Defeated strategy;
According to the corresponding tactful data information transfer by this kind of data type of transmission of the data type to server.
2. the method for data transfer as claimed in claim 1, it is characterised in that described to be passed according to the data type is corresponding Defeated strategy includes data information transfer to the server of this kind of data type:
When collecting primary sources information, the first kind array element in two-dimensional array is updated to collected first Class data message;
The primary sources information in the first kind array element and the first kind are identified together according to default time interval Upload onto the server;
Wherein, the primary sources information includes state class data message.
3. the method for data transfer as claimed in claim 1, it is characterised in that described to be passed according to the data type is corresponding Defeated strategy includes data information transfer to the server of this kind of data type:
When collecting secondary sources information, by the secondary sources information with the last he second-class number collected it is believed that Breath is compared;
If the two is differed, the secondary sources information and Equations of The Second Kind that currently collect mark are together uploaded onto the server;
Wherein, the secondary sources information include event class data message, failure classes data message, alarm class data message, Set class data message.
4. the method for data transfer as claimed in claim 3, it is characterised in that methods described also includes:
If the two is differed, the change section and the change section in the secondary sources information collected are obtained in two-dimemsional number Correspondence position in group;
The correspondence position of the change section and the change section in the two-dimensional array is together uploaded onto the server.
5. the method for data transfer as claimed in claim 1, it is characterised in that described to be passed according to the data type is corresponding Defeated strategy includes data information transfer to the server of this kind of data type:
The data requesting instructions issued according to server, gather the 3rd class data message, by the 3rd class data currently collected Information and the 3rd class mark are together uploaded to the server;
Wherein, the 3rd class data message includes request class data message.
6. a kind of device of data transfer, it is characterised in that described device includes:
Division module, for dividing data type to the data message gathered needed for data acquisition equipment, and sets each to count According to the corresponding transmission strategy of type;
Transport module, for transmitting the tactful data information transfer by this kind of data type extremely according to the data type is corresponding Server.
7. the device of data transfer as claimed in claim 6, it is characterised in that the transport module includes:
Updating block, for when collecting primary sources information, the first kind array element in two-dimensional array to be updated to The primary sources information collected;
First transmission unit, for according to default time interval by the primary sources information in the first kind array element Together uploaded onto the server with first kind mark;
Wherein, the primary sources information includes state class data message.
8. the device of data transfer as claimed in claim 6, it is characterised in that the transport module includes:
Comparing unit, for when collecting secondary sources information, the secondary sources information to be collected with the last time Secondary sources information be compared;
Second transmission unit, if differed for the two, the secondary sources information and Equations of The Second Kind that currently collect are identified Together upload onto the server;
Wherein, the secondary sources information include event class data message, failure classes data message, alarm class data message, Set class data message.
9. the device of data transfer as claimed in claim 8, it is characterised in that the transport module also includes:
Acquiring unit, if differed for the two, obtains change section in the secondary sources information that collects and described Correspondence position of the change section in two-dimensional array;
Second transmission unit is additionally operable to, by the corresponding position of the change section and the change section in the two-dimensional array Put and together upload onto the server.
10. the device of data transfer as claimed in claim 6, it is characterised in that the transport module includes:
3rd transmission unit, for the data requesting instructions issued according to server, gathers the 3rd class data message, will currently adopt The 3rd class data message collected and the 3rd class mark are together uploaded to the server;
Wherein, the 3rd class data message includes request class data message.
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CN109981221A (en) * 2019-03-26 2019-07-05 南京罗拉穿云物联网科技有限公司 Industrial DTU data preprocessing method and device
CN110131852A (en) * 2019-05-08 2019-08-16 珠海格力电器股份有限公司 Air conditioner data collection method and device, computer equipment and storage medium
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CN113052077A (en) * 2021-03-25 2021-06-29 天津市中力神盾电子科技有限公司 Data transmission method, data processing method, terminal and power distribution device
CN115277699A (en) * 2022-07-22 2022-11-01 江苏睿科大器机器人有限公司 Intelligent device management cloud service platform applied to medical institution
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