CN110401926A - A kind of data transmission method suitable for internet of things data fusion Error Control - Google Patents
A kind of data transmission method suitable for internet of things data fusion Error Control Download PDFInfo
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- CN110401926A CN110401926A CN201910409725.9A CN201910409725A CN110401926A CN 110401926 A CN110401926 A CN 110401926A CN 201910409725 A CN201910409725 A CN 201910409725A CN 110401926 A CN110401926 A CN 110401926A
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- 230000004927 fusion Effects 0.000 title claims abstract description 30
- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000012937 correction Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0057—Block codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
The invention belongs to internet of things data to merge field, can be improved the accuracy of data transmission in internet of things data fusion, specifically a kind of data transmission method suitable for internet of things data fusion Error Control.It is broadly divided into four steps: A. defined parameters；B. progress RS (n-k) coding at end sensor is being sent；C. it obtains correctly transmitting set and retransmitting gathering according to number of errors selection error correcting system in data packet；D. the data packet in correct set is carried out data transmission dispatching, the data packet retransmitted in set is retransmitted.The method increase the throughputs that data packet is correctly transmitted, and increase the quantity that high value data packet is correctly transmitted, improve the validity of data in data fusion.
Description
Technical field
The invention belongs to internet of things data merge field, can be improved internet of things data fusion in data transmission it is accurate
Property, specifically a kind of data transmission method suitable for internet of things data fusion Error Control.
Background technique
With the development of Network Information technology, Internet of Things is as one kind to realize object and object, object and people and person to person
Between interaction be target Novel Communication mode, become the important component of generation information technology.Wireless sensor is made
For the chief component of Internet of Things and the mode of acquisition data, it is widely used.
Under scenes of internet of things, Node distribution is very extensive, and substantial amounts, in the case, transmits to sensor
Data carry out fusion treatment be necessary.Data fusion is the technology of an integrated treatment multi-source information, it will be more
The advantages of collected multiple source information is extracted, handles, is analyzed on a sensor, comprehensive each sensor, to form ratio
Single information source relatively reliable estimation and decision.
But sensor transmits in data procedures to fusion center, due to factors such as noise jamming and channel fadings
It influences, will lead to data and generate mistake in transmission process, receiving end is made to receive error message.Internet of things data merges logarithm
According to requirement it is high, it is desirable that the extremely low bit error rate.Therefore, in internet of things data fusion, an effective error handle is needed
Mechanism carrys out control error, reduces the bit error rate.
Currently, most of researchs about data fusion all focus at the data having received to fusion center
Reason, and it is less to the communications research between sensor and fusion center.
The method that this patent proposes is exactly a kind of data transmission method suitable for internet of things data fusion Error Control, energy
Effectively solve the mistake that data generate in data fusion transmission process.When data packet is transmitted in the channel generates mistake, root
Different error correcting systems is selected according to the number of errors generated in data packet, and according to type of data packet and data packet logarithm
Selective error correction is carried out according to the value of fusion.
Summary of the invention
A kind of data transmission method suitable for internet of things data fusion Error Control including the following steps:
A. defined parameters: real time data is worth threshold value V, non-real-time data maximum retransmission threshold value Nmax, correct transmission collection
T is closed, set P is retransmitted.
B. send end sensor at carry out RS (n-k) coding: by sensor collection to data carry out before transmission
RS (n-k) coding, the maximum number of bit errors for restoring it at receiving end i.e. fusion center are (n-k)/2.
C. it obtains correctly transmitting set and retransmitting gathering according to number of errors selection error correcting system in data packet:
1. pair error number is less than the data packet equal to (n-k)/2 and carries out forward error correction, and is put into set T, big to error number
In the data packet of (n-k)/2, judge it to be real-time or non real-time.
2. the set P that is put by value more than or equal to V is retransmitted for real time data packet；For non-real-time data packet, will weigh
It passes number and is less than or equal to NmaxBe put into set P re-transmission.
D. the data packet in correct transmission set is subjected to transmitting and scheduling, the data packet retransmitted in set is retransmitted: will
Data packet in correct transmission set T is transmitted to the Data Fusion that fusion center carries out next step；Retransmit the number in set P
It is retransmitted according to packet feedback to step B.
The present invention, which compares prior art, has following remarkable advantage:
1. this method selects error correcting system according to the number of errors of data packet, and has choosing according to the type and value of data packet
The error correction selected.
2. increasing the number that high value data packet is correctly transmitted the method increase the throughput that data packet is correctly transmitted
Amount, improves the validity of data in data fusion.
Detailed description of the invention
Fig. 1 is overview flow chart of the invention.
Fig. 2 is the spirogram of handling up of simulation result.
Fig. 3 is value Successful transmissions rate figure.
Specific embodiment
With reference to the accompanying drawing, illustrate embodiments of the present invention.
Fig. 1 is a kind of general flow chart of data transmission method suitable for internet of things data fusion Error Control, specific real
It is existing are as follows:
A. defined parameters: real time data is worth threshold value V, non-real-time data maximum retransmission threshold value Nmax, correct transmission collection
T is closed, set P is retransmitted.
B. send end sensor at carry out RS (n-k) coding: by sensor collection to data carry out before transmission
RS (n-k) coding, the maximum number of bit errors for restoring it at receiving end i.e. fusion center are (n-k)/2.
C. it obtains correctly transmitting set and retransmitting gathering according to number of errors selection error correcting system in data packet:
1. pair error number is less than the data packet equal to (n-k)/2 and carries out forward error correction, and is put into set T, big to error number
In the data packet of (n-k)/2, judge it to be real-time or non real-time.
2. the set P that is put by value more than or equal to V is retransmitted for real time data packet；For non-real-time data packet, will weigh
It passes number and is less than or equal to NmaxBe put into set P re-transmission.
D. the data packet in correct transmission set is subjected to transmitting and scheduling, the data packet retransmitted in set is retransmitted: will
Data packet in correct transmission set T is transmitted to the Data Fusion that fusion center carries out next step；Retransmit the number in set P
It is retransmitted according to packet feedback to step B.
Claims (1)
1. a kind of data transmission method suitable for internet of things data fusion Error Control including the following steps:
A. defined parameters: real time data is worth threshold value V, non-real-time data maximum retransmission threshold value Nmax, it is correct to transmit set T,
Retransmit set P.
B. send end sensor at carry out RS (n-k) coding: by sensor collection to data carry out RS (n- before transmission
K) it encodes, the maximum number of bit errors for restoring it at receiving end i.e. fusion center is (n-k)/2.
C. it obtains correctly transmitting set and retransmitting gathering according to number of errors selection error correcting system in data packet:
1. pair error number is less than the data packet equal to (n-k)/2 and carries out forward error correction, and is put into set T, (n- is greater than to error number
K) data packet/2 judges it to be real-time or non real-time.
2. the set P that is put by value more than or equal to V is retransmitted for real time data packet；For non-real-time data packet, will retransmit secondary
Number is less than or equal to NmaxBe put into set P re-transmission.
D. the data packet in correct transmission set is subjected to transmitting and scheduling, the data packet retransmitted in set is retransmitted: will be correct
Data packet in transmission set T is transmitted to the Data Fusion that fusion center carries out next step；Retransmit the data packet in set P
Step B is fed back to be retransmitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910409725.9A CN110401926A (en) | 2019-05-17 | 2019-05-17 | A kind of data transmission method suitable for internet of things data fusion Error Control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910409725.9A CN110401926A (en) | 2019-05-17 | 2019-05-17 | A kind of data transmission method suitable for internet of things data fusion Error Control |
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| Publication Number | Publication Date |
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| CN110401926A true CN110401926A (en) | 2019-11-01 |
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| CN201910409725.9A Pending CN110401926A (en) | 2019-05-17 | 2019-05-17 | A kind of data transmission method suitable for internet of things data fusion Error Control |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490866A (en) * | 2013-09-06 | 2014-01-01 | 北京航空航天大学 | Satellite-ground transmission network HARQ transmission method based on network coding |
| CN104184554A (en) * | 2014-09-03 | 2014-12-03 | 北京邮电大学 | Undersampling quantification and forwarding method for relay network |
| CN107453848A (en) * | 2016-05-30 | 2017-12-08 | 三星Sds株式会社 | Data transferring method and data link |
| CN108810165A (en) * | 2018-07-11 | 2018-11-13 | 中国石油大学(华东) | Transmitting and scheduling algorithm in a kind of fusion of Internet of Things data |
-
2019
- 2019-05-17 CN CN201910409725.9A patent/CN110401926A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490866A (en) * | 2013-09-06 | 2014-01-01 | 北京航空航天大学 | Satellite-ground transmission network HARQ transmission method based on network coding |
| CN104184554A (en) * | 2014-09-03 | 2014-12-03 | 北京邮电大学 | Undersampling quantification and forwarding method for relay network |
| CN107453848A (en) * | 2016-05-30 | 2017-12-08 | 三星Sds株式会社 | Data transferring method and data link |
| CN108810165A (en) * | 2018-07-11 | 2018-11-13 | 中国石油大学(华东) | Transmitting and scheduling algorithm in a kind of fusion of Internet of Things data |
Non-Patent Citations (3)
| Title |
|---|
| 李洪兵: "无线传感器网络故障容错机制与算法研究", 中国博士学位论文全文数据库信息科技辑, 15 November 2014 (2014-11-15), pages 1 * |
| 汪淑娟等: "基于网络编码的VANETs 高效数据分发策略", 计算机工程, 31 May 2016 (2016-05-31), pages 1 * |
| 靳勇;乐德广;白光伟;: "无线传感器网络自适应链路层FEC控制策略", 计算机应用研究, no. 04, 15 April 2010 (2010-04-15) * |
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Effective date of registration: 20240802 Address after: No. 50, Oasis 2nd Road, Modern Agriculture Demonstration Zone Management Center, Dongying City, Shandong Province, China 257061 Applicant after: Yellow River Delta Satellite Data Application Research Institute Country or region after: China Address before: 266580 No. 66 Changjiang West Road, Huangdao District, Qingdao, Shandong. Applicant before: CHINA University OF PETROLEUM (EAST CHINA) Country or region before: China |
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