CN110213259A - The UDP transmission method of electric power observation and control message sends terminal and receives terminal - Google Patents
The UDP transmission method of electric power observation and control message sends terminal and receives terminal Download PDFInfo
- Publication number
- CN110213259A CN110213259A CN201910457784.3A CN201910457784A CN110213259A CN 110213259 A CN110213259 A CN 110213259A CN 201910457784 A CN201910457784 A CN 201910457784A CN 110213259 A CN110213259 A CN 110213259A
- Authority
- CN
- China
- Prior art keywords
- verification
- message
- application layer
- udp
- error
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 57
- 230000005540 biological transmission Effects 0.000 title claims abstract description 54
- 238000012795 verification Methods 0.000 claims abstract description 166
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 56
- 238000005538 encapsulation Methods 0.000 claims abstract description 22
- 239000011159 matrix material Substances 0.000 claims description 33
- 238000012937 correction Methods 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 description 11
- 238000001514 detection method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/164—Adaptation or special uses of UDP protocol
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
It the invention discloses a kind of UDP transmission method of electric power observation and control message, sends terminal and receives terminal, this method comprises: encoding according to Correction-Coding Algorithm to original application layer message, obtain error correcting code；To the set of original application layer message and error correcting code carry out verification calculate obtain verification and；UDP message is obtained after carrying out UDP encapsulation to the set of original application layer message, error correcting code and verification sum and sends UDP message, after receiving terminal reception UDP message and decapsulating, error-correcting decoding is carried out to application layer message according to correcting interpretation algorithm, and to the set of the application layer message obtained after decoding and error correcting code calculate verification and, if the verification that verification obtains after calculating and the application layer message with the verification obtained after decapsulation and unanimously, after submitting error-correcting decoding.This method can effectively guarantee the reliability of the message of UDP transmission, and the real-time for ensureing most electric power wide area protection business is remained in network congestion.
Description
Technical field
The invention belongs to the electric power Wide area protection system communications fields, and in particular to a kind of UDP transmission of electric power observation and control message
Method sends terminal and receives terminal.
Background technique
Power grid mostly uses greatly point-to-point information transmission mode at present, and this transmission mode investment is big, does not adapt to advise greatly
The wide area protection of mould and the application demand of control.The Wide-area Measurement Information of interconnected network is realized using the switching network based on ICP/IP protocol
Exchange is the inevitable development trend of the following electric network protection and control.Wide area protection and the communication range of control system are wide, communicate away from
From length, a possibility that communication network is under attack, is big.TCP is provided reliably with Retransmission timeout mechanism for application program by confirmation
Transmission service, but will lead to increasing considerably for message time delay in network congestion.UDP does not have congestion control mechanism, in network
Transmission rate will not be reduced when congestion, propagation delay time will not significantly increase, but it does not have guaranteed reliability's mechanism.
Traditional research about electric power Wide area protection system real-time communication and reliability guarantee method, mainly using excellent
Change network topology structure, the traffic engineering based on MPLS and routing optimality, calculated for service with different priority levels optimization queue scheduling
The methods of method, service quality guarantee based on DiffServ model.
Current transmission method, since transport layer still uses Transmission Control Protocol, these methods not can solve same data flow
Congestion and error retransmit bring delay problem on path.
Summary of the invention
To solve the above problems, the embodiment of the present invention provides a kind of UDP transmission method of electric power observation and control message, sends terminal
And receive terminal.
In a first aspect, the embodiment of the present invention provides a kind of UDP transmission method of electric power observation and control message, comprising: according to error correction
Encryption algorithm encodes original application layer message, obtains error correcting code；To the collection of original application layer message and the error correcting code
Conjunction carry out verification calculate obtain verification and；UDP encapsulation is carried out to the set of original application layer message, error correcting code and verification sum,
Packaged UDP message disable itself verification and, and to obtained UDP message according to preset times repeat send the UDP message,
After receiving the terminal reception UDP message and decapsulating, application layer message is carried out according to corresponding correcting interpretation algorithm
Error-correcting decoding, and to the set of the application layer message obtained after decoding and error correcting code calculate verification and, if verification calculate after obtain
Verification and with the verification obtained after decapsulation and consistent, then application layer message after submitting error-correcting decoding.
Second aspect, the embodiment of the present invention provide a kind of UDP transmission method of electric power observation and control message, comprising: receive and send
The UDP message of terminal sending is simultaneously decapsulated, the set of be applied a layer message, error correcting code and verification sum；According to error correction
Decoding algorithm carries out error-correcting decoding to the application layer message after decapsulation, to the application layer message and error correcting code obtained after decoding
Gather calculating verification and if verifying the verification obtained after calculating and with the verification obtained after decapsulation and unanimously, then submits error correction
Otherwise application layer message after decoding abandons application layer message；Wherein, the UDP message is to send terminal according to entangling accordingly
Miscoding algorithm encodes original application layer message, after obtaining error correcting code, to the collection of original application layer message and error correcting code
Conjunction carry out verification calculate obtain verification and, and to the set of original application layer message, error correcting code and verification sum carry out UDP encapsulation
It obtains afterwards.
The third aspect, the embodiment of the present invention provide a kind of transmission terminal, comprising: first processing module, for according to error correction
Encryption algorithm encodes original application layer message, obtains error correcting code；Second processing module, for original application layer message
With the set of the error correcting code carry out verification calculate obtain verification and；Sending module, for original application layer message, error correcting code
And the set of verification sum carry out UDP encapsulation after obtain UDP message, when the UDP is encapsulated disabling UDP itself verification and, and root
It repeats to send the UDP message according to preset times, after receiving the terminal reception UDP message and decapsulating, according to corresponding
Correcting interpretation algorithm error-correcting decoding is carried out to application layer message, and to the collection of the application layer message obtained after decoding and error correcting code
Add up to calculation verification and if verifying the verification obtained after calculating and with the verification obtained after decapsulation and unanimously, then submits error correction to translate
Application layer message after code.
Fourth aspect, the embodiment of the present invention provide a kind of reception terminal, comprising: receiving module sends terminal for receiving
The UDP message of sending is simultaneously decapsulated, the set of be applied a layer message, error correcting code and verification sum；Processing module is used for
Error-correcting decoding is carried out to the application layer message after decapsulation according to correcting interpretation algorithm, to the application layer message that is obtained after decoding and
The set of error correcting code calculate verification and, if verification that verification obtains after calculating and with the verification obtained after decapsulation and unanimously, then
Otherwise application layer message after submitting error-correcting decoding abandons application layer message；Wherein, the UDP message be send terminal according to
Corresponding Correction-Coding Algorithm encodes original application layer message, after obtaining error correcting code, to original application layer message and entangles
The set of error code carry out verification calculate obtain verification and, and to the set of original application layer message, error correcting code and verification sum into
It is obtained after row UDP encapsulation.
The invention has the following advantages: a kind of UDP transmission method of electric power observation and control message provided by the invention, transmission
Terminal and reception terminal, obtain after carrying out UDP encapsulation by the set to original application layer message, error correcting code and verification sum
UDP message, and UDP message is sent, after receiving the terminal reception UDP message and decapsulating, according to correcting interpretation algorithm
Error-correcting decoding is carried out to application layer message, to realize the correction to channel random error.In addition, by obtaining after decoding
The set of application layer message and error correcting code calculates verification and can effectively ensure that the accuracy of the message of UDP transmission, pass through biography
Defeated layer remains to ensure in network congestion the real-time of most electric power wide area protection business using udp protocol.
Detailed description of the invention
Below in conjunction with drawings and the embodiments, the invention will be further described, in attached drawing:
Fig. 1 is a kind of UDP transmission method flow chart of electric power observation and control message provided in an embodiment of the present invention；
Fig. 2 be another embodiment of the present invention provides a kind of electric power observation and control message UDP transmission method flow chart；
Fig. 3 is a kind of UDP transmission method flow chart for electric power observation and control message that further embodiment of this invention provides；
Fig. 4 is a kind of UDP transmission method flow chart for electric power observation and control message that a further embodiment of the present invention provides；
Fig. 5 is transmission terminal structure figure provided in an embodiment of the present invention；
Fig. 6 is reception terminal structure figure provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
So far, although much researchs are proposed for guaranteed reliability's problem of communication service when being transmitted using UDP
Solution, but error correction, error detection and retransmission mechanism are not combined and are used for actual communication.
The present invention provides a kind of UDP transmission method of electric power observation and control message, and this method can be applied to above-mentioned electric power wide area and protect
The communication scenes of protecting system and other corresponding UDP transmitting scenes.The corresponding executing subject of this method can be whole to send
End, or receive terminal, the present invention is not especially limit this.For ease of description, the embodiment of the present invention is first
Afterwards by taking executing subject is to send terminal and receive terminal as an example, the UDP of electric power observation and control message provided in an embodiment of the present invention is passed
Transmission method is illustrated.Wherein, the transmission terminal in the embodiment of the present invention, reception terminal can be according to different application scenarios
Different equipment.
Fig. 1 is a kind of UDP transmission method flow chart of electric power observation and control message provided in an embodiment of the present invention, as shown in Figure 1,
The embodiment of the present invention provides a kind of UDP transmission method of electric power observation and control message, to send terminal as executing subject, this method packet
It includes:
S101, original application layer message is encoded according to Correction-Coding Algorithm, obtains error correcting code；
In S101, original application layer message μ, general μ is less than or equal to 1400bytes, according to Correction-Coding Algorithm to report
Literary μ is encoded, and error correcting code δ is obtained.
S102, to the set of original application layer message and the error correcting code carry out verification calculate verified and；
In S102, verification is calculated to the set (μ, δ) of original application layer message and error correcting code and obtains verification and ρ.
S103, UDP message is obtained after carrying out UDP encapsulation to the set of original application layer message, error correcting code and verification sum,
And the UDP message is sent, after receiving the terminal reception UDP message and decapsulating: corresponding according to correcting interpretation algorithm
Carry out error-correcting decoding with layer message, to the set of the application layer message obtained after decoding and error correcting code calculate verification and, if verification
The verification that obtains after calculating and with the verification obtained after decapsulation and consistent, then application layer message after submitting error-correcting decoding is no
Then abandon application layer message.
In S103, UDP encapsulation, envelope are carried out to the set (μ, δ, ρ) of original application layer message, error correcting code and verification sum
UDP message X is obtained after dress, and UDP message X is sent to reception terminal by network and is received, and obtains application layer message.
Message is decapsulated, (μ ', δ ', ρ ') is obtained after reception terminal receives UDP message X in the other side.Its
In, μ ', δ ', ρ ' be respectively receive terminal the application layer message, error correcting code and the verification that receive and.Receive terminal according to transmission
The corresponding correcting interpretation algorithm of terminal carries out error-correcting decoding to (μ ', δ '), obtains (μ ", δ ').Wherein, μ " is the application after error correction
Layer message.Verification is calculated to (μ ", δ ') and verification and ρ " are obtained, if after the verification and ρ " and decapsulation that obtain after verification calculating
Obtained verification is consistent with ρ ', then it is assumed that the application layer message after error correction is correctly, by the application layer message after error-correcting decoding
μ " is committed to application layer.
The embodiment of the present invention is not especially limited the type of Correction-Coding Algorithm and correcting interpretation algorithm, including but unlimited
In BCH encoding and decoding algorithm and LDPC encoding and decoding algorithm.
The UDP transmission method of the electric power observation and control message of the embodiment of the present invention, by original application layer message, error correcting code with
And UDP message is obtained after the set progress UDP encapsulation of verification sum, and send UDP message, the UDP is received for receiving terminal
After message and decapsulation, error-correcting decoding is carried out to application layer message according to correcting interpretation algorithm, to realize to channel with chance error
The correction of code.In addition, by set to the application layer message obtained after decoding and error correcting code calculate verification and, can be effective
The accuracy for guaranteeing the message of UDP transmission remains to ensure most electricity in network congestion using udp protocol by transport layer
The real-time of power wide area protection business.
On the basis of the above embodiments, as a kind of alternative embodiment, in S103, UDP message is sent, comprising: by pre-
If number repeats to send the UDP message；Correspondingly, it after for receiving the terminal reception UDP message and decapsulating, also wraps
It includes:
After if verification calculates obtained verification and with the verification that is obtained after decapsulation and inconsistent, then abandon currently received
UDP message waits next UDP message to be received, and execute above-mentioned error-correcting decoding, calculate verification and and verification and consistency test
The process of card, until verification calculate after obtained verification and with the verification obtained after decapsulation and consistent, submit verify with it is consistent
And the application layer message after error-correcting decoding.Duplicate application layer message determines how to handle by power business application program.
In the specific implementation process, it is contemplated that when application layer message transmissions mistake is greater than error correcting capability, verification obtains after calculating
To verification and ρ " and decapsulation after obtained verification and ρ ' will be inconsistent, the application layer message and original application layer received at this time
Message is inconsistent.In embodiments of the present invention, terminal is sent for the message X after encapsulation, repeats to send according to preset times.It examines
Consider computing cost, can use transmission times is 3 times.
For receiving terminal, if the verification and ρ ' that obtain after verification and ρ " and decapsulation that verification obtains after calculating are consistent,
The application layer message μ " after error-correcting decoding is then committed to application program, duplicate application layer message is by power business application program
Determine how to handle.If the verification and ρ ' that obtain after verification and ρ " and decapsulation that verification obtains after calculating are inconsistent, then abandon
Currently available application layer message μ ".To the next UDP message received carry out above-mentioned error-correcting decoding, calculate verification and and
The process of verification and consistency checking, until the verification obtained after verification and ρ " and decapsulation that verification obtains after calculating and ρ ' one
It causes.After the application layer message in UDP message received at this time is corrected, be it is consistent with original application layer message, error correction is translated
Application layer message μ " after code is committed to application program, and such as where determined by power business application program for duplicate application layer message
Reason.
The UDP transmission method of the electric power observation and control message of the embodiment of the present invention is repeated to send out by sending terminal by preset times
Send UDP message, if receive obtained verification after terminal verification calculates and with the verification that is obtained after decapsulation and inconsistent, abandon
Currently received UDP message waits next UDP message to be received, and executes above-mentioned error-correcting decoding, calculates verification and and verification
With the process of consistency checking, until verification calculate after obtained verification and with the verification obtained after decapsulation and unanimously, thus
Correct application layer message can be obtained, repeats to send UDP message by pressing preset times, further ensures to receive to exceed and entangle
When miscounting the error burst error message of method ability, reception can be repeated several times, until receiving correct message, improve transmission
The reliability of process.
On the basis of the above embodiments, as a kind of alternative embodiment, above-mentioned Correction-Coding Algorithm is BCH Error Correction of Coding
Algorithm, above-mentioned correcting interpretation algorithm are BCH correcting interpretation algorithm, and correspondingly, S101 includes: according to original application layer message length
With preset group technology, the packet count M of the BCH Error Correction of Coding and code length n of each grouping, information word length k are determined；Root
According to the code length n, the information word length k, the generator matrix G of BCH Error Correction of Coding is determined, and according to GHT=0 is verified
Matrix H；According to HCn T=0 obtains verification variable matrix Cr, CrMiddle element is error correcting code；Wherein, Cn TIt is constituted for information word and verification member
Matrix.
Original application layer message μ, if message length is L byte, the packet count and error correcting capability of message are according to original application
Layer message length L is determined.Specifically, a group technology can be preset according to demand, and the group technology is according to Bose-Chaudhuri-Hocquenghem Code rule
It determines.The embodiment of the present invention determines point of BCH Error Correction of Coding to according to original application layer message length and preset group technology
Group number M and code length n, the information word length k of each grouping and the method for error correcting capability are not especially limited, including but unlimited
It is determined according to table 1.Referring to table 1, packet count N, every group of code length is n, and information word length is k, and every group of error correcting capability is to entangle
Misplace number.Data D=[d1,d2,...,dN], wherein each group information member diFor the matrix of 1 × k:
di=(dij) (j=1,2 ..., k)
Wherein, dij=0 or 1.
Table 1
There are following theorems for BCH code: to any positive integer m and t, certainly exist a binary BCH codes, it with β,
β2... β2t-1For root, code length n=2m- 1 or 2m- 1 factor, can correct t random error, and verification bits number is at most
Mt.
According to above-mentioned theorem, the code length n of primitive BCH code is necessary for 2m- 1 (m is positive integer).Therefore, for the letter of k bit
Breath member, k < 2m- 1, if expectation error correcting capability is t, verify first length r=mt.Enable k '=(2m- 1)-r, if k ' > k, needs
To initial data diZero padding is carried out, the length of zero padding is k "=k '-k, then data D '=[d ' after zero padding1,d′2,...,d′N],
Each group information member d 'iFor the matrix of 1 × k ':
d′i=(d 'ij) (j=1,2 ..., k ')
Wherein
For (n, k) block code, generator polynomial
G (x)=g0+xg1+x2g2+…xn-k-1gn-k-1+xn-kgn-k
It can be by xn- 1 factorization obtains, i.e. xn- 1=g (x) h (x), then generator matrix G:
For primitive BCH code, there is GHT=0.It is hereby achieved that check matrix H:
The HC known to the property of primitive BCH coden T=0, it may be assumed that
Due to information word cn-1~cn-kIt is known that the verification member c being then addedn-k-1~c0It can be obtained by above-mentioned formula.I.e.
Verify member cn-k-1~c0The verification variable matrix C of compositionrAs error correcting code δ.
In S103, UDP report is obtained after carrying out UDP encapsulation to the set of original application layer message, error correcting code and verification sum
Text, comprising: correspondingly, the error detection range for verifying calculating is information word and error correcting code.If the error detection coding algorithm that verification calculates is
F, the error-detecging code coding of transmitting terminal are as follows:
Cs=f (Ck,Cr)
Wherein, CkFor transmitting terminal information word μ, CrFor transmitting terminal error correcting code δ.Obtained transmitting terminal error-detecging code CsAs verify
And ρ.
On the basis of the above embodiments, as a kind of alternative embodiment, in S103, to original application layer message, error correction
The set of code and verification sum obtains UDP message after carrying out UDP encapsulation, comprising: to original application layer message, error correcting code and school
The set for testing sum carries out UDP encapsulation, and disabling UDP itself is verified and obtained UDP message when the UDP is encapsulated.By disabling UDP
Itself verification and, avoid error message receiving end udp protocol abandon, while reduce UDP calculate verification sum time overhead,
To reduce overall latency.
Fig. 2 be another embodiment of the present invention provides a kind of electric power observation and control message UDP transmission method flow chart, such as Fig. 2
Shown, the embodiment of the present invention provides a kind of UDP transmission method of electric power observation and control message, to receive terminal as executing subject, the party
Method includes:
S201, receive send terminal issue UDP message simultaneously decapsulated, layer message that be applied, error correcting code and
Verify the set of sum；
S202, according to correcting interpretation algorithm, using the error correcting code obtained after decapsulation to the application layer obtained after decapsulation
Message carries out error-correcting decoding, and the set of the application layer message obtained after decoding and error correcting code is calculated verification and calculated if verifying
The verification obtained afterwards and the application layer message with the verification obtained after decapsulation and unanimously, then after submitting error-correcting decoding；
Wherein, the UDP message is to send terminal to carry out original application layer message according to corresponding Correction-Coding Algorithm
Coding, after obtaining error correcting code, to the set of original application layer message and error correcting code carry out verification calculate obtain verification and, and to original
It is obtained after the set progress UDP encapsulation of beginning application layer message, error correcting code and verification sum.
Specific implementation process refers to the embodiment of above-mentioned transmission terminal.
On the basis of the above embodiments, as a kind of alternative embodiment, if verification that verification obtains after calculating and with solution
The verification that obtains after encapsulation and inconsistent, then receive terminal and abandon the UDP message, i.e., reception terminal abandons verification and inconsistent
UDP message.In the present embodiment, the error burst error message for exceeding error correction algorithm ability is abandoned by error-detection mechanism, is ensured
Give the correctness of application layer data.
On the basis of the above embodiments, as a kind of alternative embodiment, above-mentioned Correction-Coding Algorithm is BCH Error Correction of Coding
Algorithm, above-mentioned correcting interpretation algorithm are BCH correcting interpretation algorithm, correspondingly, in S202, according to basis BCH correcting interpretation algorithm,
The error correcting code being honored as a queen using solution carries out error-correcting decoding to the application layer message after decapsulation, includes: according to after decapsulation
The code word matrix that the set (μ ', δ ') and preset group technology of application layer message and error correcting code are grouped and obtain after zero padding
ci, and according to the code length n of each grouping and information word length k, determine check matrix H；Calculating matrix ciAdjoint matrix S=
ci·HT, according to S=eiHT, Error Matrix can be obtainedAccording toApplication layer message μ " after being decoded.
Specifically, a group technology can be preset according to demand, which determines according to Bose-Chaudhuri-Hocquenghem Code rule.
If the information that receiving end receives is matrixWherein D "=[d "1,d″2,...,d″N], often
One group information member d "iFor the matrix of 1 × k:
d″i=(d "ij) (j=1,2 ..., k)
And by d "iEach group arrive the position k ' together with spot patch, obtain every group information matrix d " before the decoding of corresponding groupiFor 1 × k '
Matrix:
d″′i=(d " 'ij) (j=1,2 ..., k ')
Wherein,
The code word matrix of receiving end isciFor the matrix of 1 × n.
Check matrix H is calculated according to code length n and information word length k.
Calculating matrix ciAdjoint matrix S=ci·HT。
Due to S=ci·HT=(c 'i+ei)HT=eiHT, can estimate Error Matrix
The estimation code word of decoder outputIt takesPreceding k, be denoted asArranged in sequence is to get to correctly
Data
Correspondingly, verification is calculated to (μ ", δ ') and the concrete methods of realizing for obtaining ρ " is as follows:
Error detection range is information word and error correcting code.Error detection coding algorithm is f, and the error-detecging code of receiving end is decoded as
CR=fT(Ck′,Cr′)
Wherein, Ck' for decoding after information word μ ", Cr' for decoding after error correcting code δ '.Obtained receiving end error-detecging code CR
As verification and ρ ".
Based on the above embodiment, error detection is carried out using with TCP check and identical algorithm in the embodiment of the present invention.Then error detection
The length of code is 2 bytes, hardly increase transmission delay.Simultaneously as TCP check and calculating simple, processing delay can also be with
It ignores.
Based on the content of above-mentioned each method embodiment, as shown in figure 3, further embodiment of this invention provides a kind of electric power observation and control
The UDP transmission method of message, this method to send terminal as executing subject, specific embodiment referring to Fig. 3 and above-described embodiment,
Details are not described herein again.
Based on the content of above-mentioned each method embodiment, as shown in figure 4, a further embodiment of the present invention provides a kind of electric power observation and control
The UDP transmission method of message, this method to receive terminal as executing subject, specific embodiment referring to fig. 4 and above-described embodiment,
Details are not described herein again.
Based on the identical inventive concept of above method embodiment, the embodiment of the present invention provides a kind of transmission terminal.Fig. 5 is this
The transmission terminal structure figure that inventive embodiments provide, as shown in figure 5, the transmission terminal includes at first processing module 401, second
Manage module 402 and sending module 403.Wherein, first processing module 401 is used for according to Correction-Coding Algorithm to original application layer
Message is encoded, and error correcting code is obtained；Second processing module 402 is used for the set to original application layer message and the error correcting code
Carry out verification calculate obtain verification and；Sending module 403 is used for the set to original application layer message, error correcting code and verification sum
UDP message is obtained after carrying out UDP encapsulation, and sends the UDP message, for receiving the terminal reception UDP message and unsealing
After dress, error-correcting decoding is carried out to application layer message according to corresponding correcting interpretation algorithm, and to the application layer report obtained after decoding
The set of text and error correcting code calculate verification and, if verification calculate after obtained verification and with the verification obtained after decapsulation and one
It causes, then the application layer message after submitting error-correcting decoding.
In addition, the embodiment of the present invention provides a kind of reception terminal.Fig. 6 is reception terminal structure provided in an embodiment of the present invention
Figure, as shown in fig. 6, the reception terminal includes receiving module 501 and processing module 502.Wherein, receiving module 501 is for connecing
It transmits and receives the UDP message of terminal sending and is decapsulated, the set of be applied a layer message, error correcting code and verification sum；Place
It manages module 502 to be used to carry out error-correcting decoding to the application layer message after decapsulation according to correcting interpretation algorithm, to obtaining after decoding
Application layer message and error correcting code set calculate verification and, if verification calculate after obtained verification and with obtained after decapsulation
It verifies and consistent, then after submitting error-correcting decoding application layer message；Wherein, the UDP message is to send terminal according to corresponding
Correction-Coding Algorithm encodes original application layer message, after obtaining error correcting code, to original application layer message and error correcting code
Set carry out verification calculate obtain verification and, and to the set of original application layer message, error correcting code and verification sum carry out UDP envelope
It is obtained after dress.
The particular content of terminal embodiment of the present invention please participate in above-mentioned each method embodiment, not repeat herein.
In several embodiments provided herein, it should be understood that disclosed terminal and method can pass through it
Its mode is realized.For example, terminal embodiment described above is only schematical, for example, the division of module, only
A kind of logical function partition, there may be another division manner in actual implementation.In addition, shown or discussed mutual
Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of terminal or unit,
It can be electricity, mechanical or other form connections.
Unit may or may not be physically separated as illustrated by the separation member, shown as a unit
Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks
On unit.It can select some or all of unit therein according to the actual needs to realize the mesh of the embodiment of the present invention
's.
It, can also be in addition, each functional module in each embodiment of the present invention can integrate in one processing unit
It is that modules physically exist alone, is also possible to two or more modules and is integrated in one unit.It is above-mentioned integrated
Module both can take the form of hardware realization, can also realize in the form of software functional units.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be with
It is realized with hardware realization or firmware realization or their combination mode.It when implemented in software, can be by above-mentioned function
Storage in computer-readable medium or as on computer-readable medium one or more instructions or code transmitted.Meter
Calculation machine readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to another
Any medium of a place transmission computer program.Storage medium can be any usable medium that computer can access.With
For this but be not limited to: computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disc storages, disk
Storage medium or other magnetic storage apparatus or can be used in carry or store have instruction or data structure form expectation
Program code and can be by any other medium of computer access.
In addition, any connection appropriate can become computer-readable medium.For example, if software is using coaxial electrical
The wireless technology of cable, optical fiber cable, twisted pair, Digital Subscriber Line (DSL) or such as infrared ray, radio and microwave etc from
Website, server so coaxial cable that perhaps other remote sources are transmitted, optical fiber cable, twisted pair, DSL or such as infrared
The wireless technology of line, wireless and microwave etc includes in the fixing of affiliated medium.As used in the present invention, disk (Disk) and
Dish (disc) includes compression optical disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk and Blu-ray Disc, which disk
Usually magnetic replicate data, and dish is then with laser come optical replicate data.Combination above should also be as being included in computer
Within the protection scope of readable medium.
The foregoing is merely the preferred embodiments of technical solution of the present invention, are not intended to limit protection model of the invention
It encloses.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention
Protection scope within.
Claims (9)
1. a kind of UDP transmission method of electric power observation and control message, which comprises the following steps:
S101, original application layer message is encoded according to Correction-Coding Algorithm, obtains error correcting code；
S102, to the set of original application layer message and the error correcting code carry out verification calculate verified and；
S103, UDP message is obtained after carrying out UDP encapsulation to the set of original application layer message, error correcting code and verification sum, concurrently
The UDP message is sent, after receiving the terminal reception UDP message and decapsulating, according to corresponding correcting interpretation algorithm pair
Application layer message carry out error-correcting decoding, and to the set of the application layer message obtained after decoding and error correcting code calculate verification and, if
The verification that verification obtains after calculating and the application layer report with the verification obtained after decapsulation and unanimously, then after submitting error-correcting decoding
Text.
2. a kind of UDP transmission method of electric power observation and control message according to claim 1, which is characterized in that in S103, send
The UDP message, comprising:
It repeats to send the UDP message by preset times；
Correspondingly, after for receiving the terminal reception UDP message and decapsulating, further includes:
After if verification calculates obtained verification and with the verification that is obtained after decapsulation and inconsistent, then abandon currently received UDP
Message receives next UDP message, and execute above-mentioned error-correcting decoding, calculate verification and and verification and consistency checking mistake
Journey submits verification and consistent and error correction until verifying the verification obtained after calculating and with the verification obtained after decapsulation and unanimously
Application layer message after decoding.
3. a kind of UDP transmission method of electric power observation and control message according to claim 1, which is characterized in that the error correction is compiled
Code algorithm is BCH Correction-Coding Algorithm, and the correcting interpretation algorithm is BCH correcting interpretation algorithm, correspondingly, the S101 packet
It includes:
According to original application layer message length and preset group technology determine BCH Error Correction of Coding packet count M and each point
Code length n, the information word length k of group；
According to the code length n, the information word length k, the generator matrix G of BCH Error Correction of Coding is determined, and according to GHT=0 obtains
Obtain check matrix H；
According to HCn T=0 obtains verification variable matrix Cr, CrMiddle element is error correcting code；
Wherein, Cn TThe matrix constituted for information word and verification member.
4. a kind of UDP transmission method of electric power observation and control message according to claim 1, which is characterized in that in S103, to original
The set of beginning application layer message, error correcting code and verification sum obtains UDP message after carrying out UDP encapsulation, comprising:
UDP encapsulation is carried out to the set of original application layer message, error correcting code and verification sum, and disables UDP verification and obtains
UDP message.
5. a kind of UDP transmission method of electric power observation and control message, which comprises the following steps:
S201, it receives the UDP message for sending terminal sending and is decapsulated, be applied a layer message, error correcting code and verification
The set of sum；
S202, according to correcting interpretation algorithm, using the error correcting code obtained after decapsulation to the application layer message obtained after decapsulation
Carry out error-correcting decoding, to the set of the application layer message obtained after decoding and error correcting code calculate verification and, if verification calculate after
To verification and with the verification obtained after decapsulation and consistent, then application layer message after submitting error-correcting decoding；
Wherein, the UDP message is to send terminal to encode original application layer message according to corresponding Correction-Coding Algorithm,
After obtaining error correcting code, to the set of original application layer message and error correcting code carry out verification calculate obtain verification and, and answer original
It is obtained after carrying out UDP encapsulation with the set of layer message, error correcting code and verification sum.
6. a kind of UDP transmission method of electric power observation and control message according to claim 5, which is characterized in that if verification calculates
The verification that obtains afterwards and with the verification that is obtained after decapsulation and inconsistent, then abandon the UDP message.
7. a kind of UDP transmission method of electric power observation and control message according to claim 5, which is characterized in that the error correction is compiled
Code algorithm is BCH Correction-Coding Algorithm, and the correcting interpretation algorithm is BCH correcting interpretation algorithm, correspondingly, in S202, according to
Correcting interpretation algorithm carries out error-correcting decoding to the application layer message after decapsulation, includes:
It is grouped and mends according to the set (μ ', δ ') and preset group technology of the application layer message after decapsulation and error correcting code
Code word matrix c is obtained after zeroi, and according to the code length n of each grouping and information word length k, determine check matrix H；
Calculating matrix ciAdjoint matrix S=ci·HT, according to S=eiHT, Error Matrix can be obtained
According toApplication layer message μ " after being decoded.
8. a kind of transmission terminal characterized by comprising
First processing module obtains error correcting code for encoding according to Correction-Coding Algorithm to original application layer message；
Second processing module carries out verification calculating for the set to original application layer message and the error correcting code and is verified
With；
Sending module obtains UDP after carrying out UDP encapsulation for the set to original application layer message, error correcting code and verification sum
Message, and the UDP message is sent, after receiving the terminal reception UDP message and decapsulating, according to correcting interpretation algorithm
To application layer message carry out error-correcting decoding, and to the set of the application layer message obtained after decoding and error correcting code calculate verification and,
If the verification that verification obtains after calculating and the application layer report with the verification obtained after decapsulation and unanimously, then after submitting error-correcting decoding
Text.
9. a kind of reception terminal characterized by comprising
Receiving module, for receiving the UDP message of transmission terminal sending and being decapsulated, be applied a layer message, error correcting code
And the set of verification sum；
Processing module, for carrying out error-correcting decoding to the application layer message after decapsulation according to correcting interpretation algorithm, after decoding
The set of obtained application layer message and error correcting code calculate verification and, if verification calculate after obtained verification and with after decapsulation
The verification arrived and consistent, then after submitting error-correcting decoding application layer message；
Wherein, the UDP message is to send terminal to encode original application layer message according to Correction-Coding Algorithm, is entangled
After error code, to the set of original application layer message and error correcting code carry out verification calculate obtain verification and, and to original application layer report
It is obtained after the set progress UDP encapsulation of text, error correcting code and verification sum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457784.3A CN110213259A (en) | 2019-05-29 | 2019-05-29 | The UDP transmission method of electric power observation and control message sends terminal and receives terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457784.3A CN110213259A (en) | 2019-05-29 | 2019-05-29 | The UDP transmission method of electric power observation and control message sends terminal and receives terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110213259A true CN110213259A (en) | 2019-09-06 |
Family
ID=67789281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910457784.3A Pending CN110213259A (en) | 2019-05-29 | 2019-05-29 | The UDP transmission method of electric power observation and control message sends terminal and receives terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110213259A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113360314A (en) * | 2020-03-02 | 2021-09-07 | 芯原微电子（成都）有限公司 | Data processing method, system, equipment and computer readable storage medium |
| CN114884625A (en) * | 2022-07-08 | 2022-08-09 | 浙江口碑网络技术有限公司 | Data packet error correction method and device and computer equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100095193A1 (en) * | 2008-10-15 | 2010-04-15 | Nokia Corporation | System and Method for Pre-calculating Checksums |
| CN102594506A (en) * | 2011-11-28 | 2012-07-18 | 中兴通讯股份有限公司 | Processing method and device of overlapped coding sequences based on code structure |
| CN105141626A (en) * | 2015-09-17 | 2015-12-09 | 上海赛为信息技术有限公司 | Optimized SPICE WAN system and method |
| CN106656422A (en) * | 2017-01-03 | 2017-05-10 | 珠海全志科技股份有限公司 | Streaming media transmission method capable of dynamically regulating redundancy of FEC (Forward Error Correction) |
-
2019
- 2019-05-29 CN CN201910457784.3A patent/CN110213259A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100095193A1 (en) * | 2008-10-15 | 2010-04-15 | Nokia Corporation | System and Method for Pre-calculating Checksums |
| CN102594506A (en) * | 2011-11-28 | 2012-07-18 | 中兴通讯股份有限公司 | Processing method and device of overlapped coding sequences based on code structure |
| CN105141626A (en) * | 2015-09-17 | 2015-12-09 | 上海赛为信息技术有限公司 | Optimized SPICE WAN system and method |
| CN106656422A (en) * | 2017-01-03 | 2017-05-10 | 珠海全志科技股份有限公司 | Streaming media transmission method capable of dynamically regulating redundancy of FEC (Forward Error Correction) |
Non-Patent Citations (2)
| Title |
|---|
| 何润岸: "基于UDP进行大规模数据传输的可靠传输系统的设计与实现", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 方霖: "DVB_S2中BCH码编译码器设计与实现", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113360314A (en) * | 2020-03-02 | 2021-09-07 | 芯原微电子（成都）有限公司 | Data processing method, system, equipment and computer readable storage medium |
| CN113360314B (en) * | 2020-03-02 | 2023-07-18 | 芯原微电子（成都）有限公司 | Data processing method, system, equipment and computer readable storage medium |
| CN114884625A (en) * | 2022-07-08 | 2022-08-09 | 浙江口碑网络技术有限公司 | Data packet error correction method and device and computer equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6516435B1 (en) | Code transmission scheme for communication system using error correcting codes | |
| CN101432969B (en) | Forward error-correcting (FEC) coding and streaming | |
| KR101532849B1 (en) | Universal file delivery methods for providing unequal error protection and bundled file delivery services | |
| Shi et al. | Integration of Reed-Solomon codes to licklider transmission protocol (LTP) for space DTN | |
| CN105306165A (en) | Data transmission method and device | |
| TW200849877A (en) | A method to support forward error correction for real-time audio and video data over internet protocol networks | |
| CN110943800A (en) | Method, device and system for sending data packet, storage medium and electronic device | |
| CN102783074A (en) | Application layer FEC framework for WIGIG | |
| CN109905205B (en) | Data sending method, data receiving method, data sending equipment, data receiving equipment, data transmission method and data transmission system | |
| Huang et al. | Just FUN: A joint fountain coding and network coding approach to loss-tolerant information spreading | |
| CN109714325A (en) | A kind of one-way optical gate data transmission method, system, electronic equipment and medium | |
| CN109547467A (en) | Media data error correction transmission and error correction method, device, equipment and storage medium | |
| CN104503801B (en) | Software upgrade instruction distribution method, the communication server and terminal device | |
| CN105471545A (en) | Data packet processing method and device | |
| TWI757609B (en) | Transmission apparatus and method, receiving apparatus and method for use in communication | |
| CN101800757A (en) | No-feedback one-way data transmission method based on single fiber structure | |
| CN113541856A (en) | Data recovery method and device | |
| US8787210B2 (en) | Firmware download with adaptive lost packet recovery | |
| CN110213259A (en) | The UDP transmission method of electric power observation and control message sends terminal and receives terminal | |
| CN108632896A (en) | A kind of data transmission method and relevant device | |
| CN103607264A (en) | 3G network-based in-band data transmission method | |
| CN113783662A (en) | Adaptive data transmission method and device, computer equipment and readable storage medium | |
| Alessi et al. | Packet layer erasure coding in interplanetary links: The LTP erasure coding link service adapter | |
| CN107209713B (en) | Method and system for on-demand file repair | |
| CN106063190B (en) | A kind of method, relevant apparatus and the system of file reparation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190906 |
|
| RJ01 | Rejection of invention patent application after publication |