CN105406943B - A kind of high integrality coding method of 1553B buses - Google Patents

A kind of high integrality coding method of 1553B buses Download PDF

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CN105406943B
CN105406943B CN201510727948.1A CN201510727948A CN105406943B CN 105406943 B CN105406943 B CN 105406943B CN 201510727948 A CN201510727948 A CN 201510727948A CN 105406943 B CN105406943 B CN 105406943B
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word
bus
waveform
synchronous head
odd
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CN105406943A (en
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王文萱
翟碧瑄
翟正军
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Shaanxi junpan Data Technology Co.,Ltd.
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Northwestern Polytechnical University
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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
    • H04L1/0061—Error detection codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Correction Of Errors (AREA)
  • Error Detection And Correction (AREA)

Abstract

The invention discloses a kind of high integrality coding method of 1553B buses, for solving the technical issues of existing 1553B bus codes method integrality is poor.Technical solution is to improve the synchronous head coding mode of 1553B bus commands word and status word, BM clearly distinguishes coding line and status word from different code identification angles, easily divide the interface of message, the certainty of bus semantic rules is reached, 1553B bus monitors are solved the problems, such as to dubious recognition existing for bus command word and status word, realize that technically simple, difficulty is small.The problems such as by increasing the optimization design of the vertical odd word of 1553B bus messages, improving the dislocation false detection rate of bus transfer, reduce time uncertainty existing for bus error re-transmission, improves the integrality of transferring content.The method of the present invention not only increases the integrality of 1553B buses, while improves the goodput of 1553B, shortens message delay efficiency of transmission.

Description

A kind of high integrality coding method of 1553B buses
Technical field
The present invention relates to a kind of bus code method, more particularly to a kind of high integrality coding method of 1553B buses.
Background technology
In " the MIL-STD-1553B Digital time division command/ that U.S. Department of Defense promulgates 21 September 1978 " (hereinafter referred to as 1553B bus standards) of response multiplex data bus, dated is advised 32 terminals can be hung by having determined 1553B buses, and terminal shares three types：It is bus control unit (BC, Bus Controller), long-range Terminal (RT, Remote Terminal) and bus monitor (BM, Bus Monitor).BC is only in bus to organize data The terminal of message transmission；RT is to receive BC in bus to control, the terminal for completing message sending or receiving；BM is to receive to disappear in bus The terminal that ceases and can have selection to record only " monitors " information in bus and transmits but be not involved in the communication of bus.
1553B buses use instruction/response type communication protocol, and message is to complete the basic transmission information of primary information communication Sequence, 1553B bus message types include：1. data class：BC to RT, RT to BC, RT to RT, broadcast BC to RT, broadcast RT are arrived RT；2. bus marco status information class：Mode is instructed to be instructed with broadcast mode.Wherein data class is user's transmitting user data Means are main information flows in bus, at least account for the 90% of bus gross information content；Bus marco status information class is in bus System administration means, as the information flow of auxiliary, at most account for the 10% of bus gross information content.1553B bus messages are by word structure Into word is divided into three classes：Coding line, data word and status word.Length per class word is 20, and first 3 of each word are synchronization Head, intermediate effective information position are 16, and last 1 is odd parity bit.16 effective information positions and odd parity bit are with Man Chesi The form of the special double level codes of II type is transmitted in bus, and the time of transmission one is 1 μ s.
1.1 message coding lines identical the problem of causing with the synchronous head of status word.
It is provided in Fig. 4 of page 7 of 1553B bus standards：Coding line header encoder synchronous with status word accounts for 3, and pattern is complete It is complete consistent, (the account for 1.5 μ s when) waveform that is first 1.5 be just, rear 1.5 digit wave form be negative.Under providing herein, for 1553B There is the situation that RT is not responding to status word in bus message, and bus monitor is difficult to differentiate next bus command word, causes ambiguity Problem.
1553B bus standards provide that coding line employs consistent synchronous header encoder with status word.For BC, RT, It is capable of the coding line of clear definition BC transmissions and the status word of RT transmissions.But for the full message of BM monitoring, receive, know Not and the coding line of record, status word, data word have BC, RT to send out respectively, due to the synchronous head of coding line and status word It is identical, it there are problems that due to coding line, the identical ambiguity identification brought of status word synchronous head coding form.Cause For during a message is received, BM needs to meet synchronous header encoder by the context priority sequential relationship judgement of message Word be coding line or status word, when normal messages transmission time sequence is broken, it is this by sequential judge caused by erroneous judgement Problem will expose.In the 1553B bus system joint-trials established in some difference 1553B bus module, when test RT is not rung When answering the monitoring capacity of BM under this abnormality of BC coding lines, it is found that BM accidentally disappears the misjudgement of lower a piece of news coding line for upper one The mistake that the status word of breath, the upper message of appearance and next message interface can not be divided correctly, causes 1553B bus messages to be supervised Control the incomplete problem of data.
1.2 only have the problem of horizontal odd is potential.
It is provided in Fig. 3 of page 6 of 1553B bus standards：Coding line, status word and the data word of 10 kinds of message all use Increase the mode (referred to as horizontal odd) of an odd, be transmitted the detection of mistake.One receives appearance 1 in word Or 3 when odd numbers bit-errors, although BC, RT it can be found that mistake, can not position and correct mistake, need BC groups again Message transmission is knitted, bus transfer efficiency can be brought to reduce in this way, be delayed the times integrity issue such as uncertain.And for same Word occurs 2 or 4 when even numbers bit-errors, and BC, RT can not have found mistake and generate message correctly to judge by accident, can cause tight The incorrect integrity issue of message content of weight.
In 1553B bus standards page 33 " 10.4 high reliability " requirement：To improve 1553B bus error detection rates, It is required that designer is designed, but do not provide specific design method using additional verification.In recent years, due to 1553B bus protocols The manufacturers such as the design of processing FPGAization, bus module production and cables manufacturing are more and more, and there is logical design level, hardware The phenomenon that product quality etc. difference is big so that the bus transfer bit error rate increases, and occurs two and more multidigit in same word The risk increase of mistake, should be more stringent to the verification of 1553B bus transfers.Therefore based on existing 1553B bus checks skill Art by increasing more stringent verification mode, improves dislocation false detection rate to meet the integrity demands of information transmission.
Invention content
In order to overcome the shortcomings of that existing 1553B bus codes method integrality is poor, the present invention provides a kind of 1553B buses High integrality coding method.This method is by improving the synchronous head coding mode of 1553B bus commands word and status word, and BM is never Same code identification angle can clearly distinguish coding line and status word, it is easy to which ground divides the interface of message, has reached bus The certainty of semantic rules solves the problems, such as 1553B bus monitors to dubious recognition existing for bus command word and status word, Realize that technically simple, difficulty is small.By increasing the optimization design of the vertical odd word of 1553B bus messages, bus transfer is improved Dislocation false detection rate, reduce bus error retransmit existing for time uncertainty the problems such as, improve the complete of transferring content Whole property.The method of the present invention not only increases the integrality of 1553B buses, while improves the goodput of 1553B, shortens Message delay efficiency of transmission.
The technical solution adopted by the present invention to solve the technical problems is：A kind of high integrality coding staff of 1553B buses Method, its main feature is that using following steps：
18 will be changed to per class word length, the 1st of each word is synchronous head, and intermediate effective information position is 16, most 1 is odd parity bit afterwards.
The effective information position and the odd parity bit are in the form of the double level codes of II type of Manchester in bus It is transmitted, the synchronous head is invalid Manchester waveform.Wherein the synchronous head of coding line, the synchronous head of data word and The coded format of the synchronous head of status word is respectively different, and respectively with the effective information position, the volume of the odd parity bit Code form is also different.
Waveform before the synchronous head of the coding line at 1/4 and at 1/2 to 3/4 for just, at 1/4 to 1/2 and Afterwards 1/4 when waveform be negative；For just, waveform at latter 1/4 is for waveform before the synchronous head of the data word at 3/4 It is negative；Waveform before the synchronous head of the status word at 1/4 and at 1/2 to 3/4 is negative, at 1/4 to 1/2 and rear 1/4 Waveform during position is just.
Waveform when either, 1/4 before the synchronous head of the coding line and when 1/2 to 3/4 be it is negative, 1/4 to 1/2 When and it is 1/4 latter when waveform for just；Waveform before the synchronous head of the data word at 3/4 is just, wave at latter 1/4 Shape is negative；Waveform before the synchronous head of the status word at 1/4 and at 1/2 to 3/4 for just, at 1/4 to 1/2 and after Waveform at 1/4 is negative.
On the basis of the horizontal odd of original 1553B buses word, the sequence that data word is carried in message is increased and is hung down Straight odd word.
Described hang down is not increased without coding line sequence, the status word sequence of data word in being transmitted to 1553B bus messages Straight odd word.
The vertical odd is one check word of addition behind the message sequence with data word, often One check bit be in the message sequence with data word all words or partial words correspond to position odd and.
Assuming that 1553B bus messages are made of the word that p [1~32] a length is 16, the rectangular form of p word arrangement, Wherein Ij,kKth [1~16] position for corresponding jth [1~p] a word；Each word generates a horizontal odd parity bit ri(i=1, 2 ..., p), to each row of rectangular vertical, generate a vertical odd parity bit rp+1,j(j=1,2 ..., 17), that is, form one A vertical odd word, wherein each is corresponding with 16 positions of word and 1 horizontal check position respectively.
I1,1 I1,2 ... I1,16 r1
I2,1 I2,2 ... I2,16 r2
...... .....
Ip,1 Ip,2 ... Ip,16 rp
rp+1,1 rp+1,2 ... rp+1,16 rp+1,17。
The beneficial effects of the invention are as follows：This method is by improving 1553B bus commands word header encoder synchronous with status word Mode, BM can clearly distinguish coding line and status word from different code identification angles, it is easy to and ground divides the interface of message, Reach the certainty of bus semantic rules, solve 1553B bus monitors to being mixed existing for bus command word and status word Confuse identification problem, realize that technically simple, difficulty is small.By increasing the optimization design of the vertical odd word of 1553B bus messages, carry The dislocation false detection rate of high bus transfer, reduce bus error retransmit existing for time uncertainty the problems such as, improve biography The integrality of defeated content.The method of the present invention not only increases the integrality of 1553B buses, while improves effectively gulping down for 1553B Rate is spat, shortens message delay efficiency of transmission.
It elaborates with reference to the accompanying drawings and detailed description to the present invention.
Description of the drawings
Fig. 1 is the coding line data encoding format citing of the method for the present invention.
Fig. 2 is the data words data coded format citing of the method for the present invention.
Fig. 3 is the status word data encoding format citing of the method for the present invention.
Fig. 4 is the message interval curve of the method for the present invention.
Fig. 5 is the response time curve of the method for the present invention.
Fig. 6 is the method for the present invention and background technology method goodput comparison diagram.
Fig. 7 is the method for the present invention and background technology method message delay comparison diagram.
Specific embodiment
With reference to Fig. 1-7.The high integrality coding method of 1553B buses of the present invention is as follows：
1. 1553B buses word synchronizes the optimization design of header encoder.
The present invention proposes a kind of synchronous head coding mode for changing coding line and status word, will be changed to 18 per class word length Position, the 1st of each word is synchronous head, and intermediate effective information position is still 16, and last 1 is odd parity bit.
Specifically improvement project is：Synchronous head is invalid Manchester waveform, when width is 1 position.Wherein reference Fig. 1, Waveform before the synchronous head of coding line at 1/4 and at 1/2 to 3/4 is just, waveform when at 1/4 to 1/2 and 1/4 latter It is negative；With reference to Fig. 2, for just, waveform at latter 1/4 is negative for waveform when 3/4 before the synchronous head of data word；With reference to Fig. 3, shape Waveform before the synchronous head of state word at 1/4 and at 1/2 to 3/4 is negative, and waveform when at 1/4 to 1/2 and 1/4 latter is Just.
Another coded format of synchronous head is：Waveform before the synchronous head of coding line at 1/4 and at 1/2 to 3/4 It is negative, waveform when at 1/4 to 1/2 and 1/4 latter is just；Waveform before the synchronous head of data word at 3/4 is just rear 1/ Waveform at 4 is negative；Waveform before the synchronous head of status word at 1/4 and at 1/2 to 3/4 is just, at 1/4 to 1/2 And waveform when 1/4 latter is negative.Another coded format of synchronous head is：Waveform before the synchronous head of coding line at 3/4 For just, waveform at latter 1/4 is negative；Waveform before the synchronous head of data word at 1/4 and at 1/2 to 3/4 be it is negative, 1/4 To waveform at 1/2 and when 1/4 latter for just；Waveform before the synchronous head of status word at 1/4 and at 1/2 to 3/4 is Just, 1/4 to 1/2 when and it is 3/4 latter when waveform be negative.Therefore, the coded format of synchronous head can also be other modes, only Ensure that the coded format of the synchronous head of the synchronous head of coding line, the synchronous head of data word and status word is respectively different, and point It is also not different from the coded format of effective information position and odd parity bit.
In the present solution, the length per class word shorten to 18 from 20, and effective information position therein still for 16 simultaneously It does not reduce, thus the code length of each word transmitted in bus reduces, the delay of data transmission is reduced, and is effectively transmitted Efficiency can be also improved therewith.
2. the optimization design of 1553B bus message check codes.
For 1553B bus messages, the horizontal odd mode of word of original 1553B buses is continued to use；The present invention increases message Vertical odd mode, vertical odd be behind the message sequence with data word addition one check word, it is each Check bit be in message sequence all words correspond to position odd and.
Specifically, it is assumed that 1553B bus messages are that the word of 16 is formed by p [1~32] a length, p word arrangement into Rectangular in form, wherein Ij,kKth [1~16] position for corresponding jth [1~p] a word；Each word generates a horizontal odd parity bit ri[1~p] to each row of rectangular vertical, generates a vertical odd parity bit rp+1,j[1~17] forms one vertically Odd word, wherein each is corresponding with 16 positions of word and 1 horizontal check position respectively.
I1,1 I1,2 ... I1,16 r1
I2,1 I2,2 ... I2,16 r2
...... .....
Ip,1 Ip,2 ... Ip,16 rp
rp+1,1 rp+1,2 ... rp+1,16 rp+1,17。
3. the bus performance comparative analysis of the method for the present invention and background technology method.
With reference to Fig. 4,5,1553B bus synchronous header encoder method of the present invention shortens interval and response time between message.
It is divided between message in a message the last character the last intermediate zero crossing to next adjacent message in the past The intermediate zero crossing time of coding line synchronous head.Due to new coding line synchronous head coding mode, it is possible to reduce between the message of 1 μ s Interval.
Response time is to be synchronized from last the intermediate zero crossing of the last character before status word to status word The time of the intermediate zero crossing of head.In the message transmission of former word coding mode, when remote terminal responds effective instruction word space Between for 4.0~12.0 μ s, since the method for the present invention word synchronous head coding mode reduces the response time of 1 μ s, i.e. remote terminal is rung The interval time of effective coding line is answered to shorten to as 3.0~11.0 μ s.
For the method for the present invention and two kinds of situations of background technology method coding mode, the method for the present invention Comparative and Quantitative Analysis 1553B buses goodput and bus message two Key Performance Indicators of delay.Since the data class of BC to RT, RT to BC disappear Breath application is at most and most representative, and goodput, the bus message of analysis below BC to RT or RT to BC are delayed two Performance indicator.
3.1 goodput.
Goodput refers to transmit the ratio for effectively occupying entire bus message using data word in 1553B buses.
Number equipped with effect data word is n, and transmission goodput is β.
The goodput calculation formula of former 1553B buses is as follows：
It is as follows to change the new 1553B bus goodput calculation formula of coding mode：
With reference to Fig. 6, when the number of data word is in the range of [8~32], the method for the present invention coding mode compares background technology Method coding mode goodput significantly improves, and at most improves 0.060；When data word number is in the range of [1~7], effectively Throughput slightly reduces, and at most reduces less than 0.045.
3.2 bus messages are delayed.
Bus message, which is delayed, refers to the transmission time of a full message in 1553B buses.
Number equipped with effect data word is n, and bus message delay is τ.
The message delay calculation formula of former 1553B buses is as follows
τ1=(n+2) × 20+8 (because the response time is 4.0~12.0 μ s, now takes intermediate 8 μ s of mean value to substitute into for the sake of simplicity It calculates)
It is as follows to change the new 1553B bus messages delay calculation formula of coding mode：
τ2=(n+3) × 18+7 (because the response time is 3.0~11.0 μ s, now takes intermediate 7 μ s of mean value to substitute into for the sake of simplicity It calculates)
With reference to Fig. 7, when data word number is in the range of [7~32], the coding staff of the method for the present invention and background technology method Formula message delay is substantially reduced, and at most reduces 51 μ s；When data word number is in [1~6] range, message delay slightly increases Add, at most increase 11 μ s.
Bus code prioritization scheme proposed by the present invention transmits for 1553B bus messages and provides high integrality with monitoring Ensure, although when the data word number of 1553B bus messages institute band less (7 hereinafter, fraction applicable cases), bus has It imitates throughput and bus is delayed index there are smaller hydraulic performance decline, but when the data word number of 1553B message institute band is more (big In 7, major applications situation) when, bus goodput significantly improves, and bus delay is significantly shortened.Therefore, which compiles Code scheme not only has high information integrity, but also with good communication performance, can preferably meet the logical of 1553B buses Believe application requirement.

Claims (1)

1. a kind of high integrality coding method of 1553B buses, it is characterised in that include the following steps：
18 will be changed to per class word length, the 1st of each word is synchronous head, and intermediate effective information position is 16, last 1 It is odd parity bit；
The effective information position and the odd parity bit are carried out in the form of the double level codes of II type of Manchester in bus Transmission, the synchronous head are invalid Manchester waveform；The wherein synchronous head of coding line, the synchronous head of data word and state The coded format of the synchronous head of word is respectively different, and respectively with the effective information position, the coding lattice of the odd parity bit Formula is also different；
Waveform before the synchronous head of the coding line at 1/4 and at 1/2 to 3/4 is just, at 1/4 to 1/2 and rear 1/4 Waveform during position is negative；For just, waveform at latter 1/4 is negative for waveform before the synchronous head of the data word at 3/4；Institute Waveform before the synchronous head for the status word stated at 1/4 and at 1/2 to 3/4 is negative, when at 1/4 to 1/2 and 1/4 latter Waveform is just；
Waveform when either, 1/4 before the synchronous head of the coding line and when 1/2 to 3/4 is negative, at 1/4 to 1/2 and Afterwards 1/4 when waveform for just；For just, waveform at latter 1/4 is for waveform before the synchronous head of the data word at 3/4 It is negative；Waveform before the synchronous head of the status word at 1/4 and at 1/2 to 3/4 is just, at 1/4 to 1/2 and rear 1/4 Waveform during position is negative；
On the basis of the horizontal odd of original 1553B buses word, the message sequence that data word is carried in message is increased and is hung down Straight odd word；
It is vertical strange described in not increasing coding line sequence, the status word sequence without data word in the transmission of 1553B bus messages Check word；
The vertical odd word is one check word of addition behind the message sequence with data word, each Check bit be in the message sequence with data word all words or partial words correspond to position odd and；
Assuming that 1553B bus messages are made of the word that p (p=1,2 ..., 32) a length is 16, the rectangular shape of p word arrangement Formula, wherein Ij, k are kth (k=1,2 ..., 16) position of corresponding jth (j=1,2 ..., p) a word；Each word generates a level Odd parity bit ri(i=1,2 ..., p) to each row of rectangular vertical, generates a vertical odd parity bit rp+1,j(j=1, 2 ..., 17) a vertical odd word, that is, is formed, wherein each is opposite with 16 positions of word and 1 horizontal check position respectively It should；
I1,1I1,2...I1,16r1
I2,1I2,2...I2,16r2
...........
Ip,1Ip,2...Ip,16rp
rp+1,1rp+1,2...rp+1,16rp+1,17 。
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CN109922009B (en) * 2019-01-25 2022-07-29 北京临近空间飞行器系统工程研究所 1553B bus message distribution configuration unit based on data characteristics
CN109802761B (en) * 2019-02-26 2021-07-23 北京润科通用技术有限公司 Fault identification method and device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102147733A (en) * 2010-02-10 2011-08-10 上海卫星工程研究所 Method for loading procedure to satellite borne remote terminal computer by using 1553B serial data bus
CN103701663A (en) * 2013-12-25 2014-04-02 北京航天测控技术有限公司 1553B bus program control fault injection device
CN103995764A (en) * 2014-05-21 2014-08-20 电子科技大学 Logic analyzer with serial bus protocol continuous triggering function

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7920588B2 (en) * 2006-05-22 2011-04-05 Edgewater Computer Systems, Inc. Data communications system and method of data transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102147733A (en) * 2010-02-10 2011-08-10 上海卫星工程研究所 Method for loading procedure to satellite borne remote terminal computer by using 1553B serial data bus
CN103701663A (en) * 2013-12-25 2014-04-02 北京航天测控技术有限公司 1553B bus program control fault injection device
CN103995764A (en) * 2014-05-21 2014-08-20 电子科技大学 Logic analyzer with serial bus protocol continuous triggering function

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