IEC 传输帧格式

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1 IEC GB GB/T XXXXX XXXX idt IEC :1990 Telecontrol Equipment and Systems Part 5:Transmission Protocol Section 1: Transmission frame formats ( ) x-xx-xx 200x-xx-xx 1

2 GB/T XXXXX XXXX 57 5 IEC IEC (1992 ) IEC (1992 ) IEC (1992 ) IEC (1995 ) IEC /T IEC /T IEC /T IEC IEC II

3 (ISO) 1) (IEC) 2) 3) IEC (C0)31 57(C0)37 57(C0)40 57(C0)45 57(C0)50 57(C0)54 III

4 GB/T XXXXX XXXX IEC ( )( ) ( ( ( (HDLC)- ( A B C 1 1 A.1 ( ) : a) b) A.2 B.1 FT1.1,FT1.2,FT2,FT3 2 B.2 FT1.1,FT1.2,FT2,FT3 IV

5 (INTRODUCTION) Telecontrol Equipment and Systems Part 5:Transmission Protocol Section 1: Transmission frame formats GB/T XXX 200X idt IEC :1990, (OSI)ISO-CCITT, ( ) ( Section Two:Transmission Procedu res),, ( ) 1 200X-XX-XX 200x-xx-xx

6 ( ) ( ) / ( / ) ( [DPDM],HDLC ) (371)(1984) (1988) ISO 3309 (1984) 3 3.1, 1 2

7 IEC ( ) 3.2 ( IEV ), 3.3 ( ), 4,, (1) (IEV )= (2) (IEV )= 4.1 I1,I2 I3 2 R ( IEV ) d p< d ( ) 1) 10-4 I1 2 I2 I3 4 I p bit/s (R) (T) 1 (T) (R) 2

8 2 (Data integrity calsses) 3

9 n T v * R n ( ( )) v ( bit/s) IEC (S) 1 (R) (T) n =100 v =1200 bit/s p=10-4 R T I I I ( IEV ) k n =k.q n /n k q n q p=( / ) q=1-p ( ), q=1-p-r r ( A) ( IEV ) ( ) v bit / s v 6 (Transmission protocol specifications) , (OSI)- ISO 4

10 CCITT 6.1 ( (DCE)(Physical lay {Data circuit terminating equipment [DCE]}) ( ) CCITT (DTE) (DCE) V X ( A) 6.2 (Link layer) ( ), 5

11 6.2.1 (Link service classes provided) 2, 2 S1 S2 / (SEND/NO REPLY) / (SEND/CONFIRM) S3 / (REQUEST/RESPOND) S1, / (SEND/NO REPLY), S2 / (SEND/CONFIRM) ( ) S3 / (REQUEST/RESPOND) ( ) ( ) ( ) ( 3) , (Cyclic transmission) (Event initiated transmission) S1 / (SEND/NO REPLY) S2 / (SEND/CONFIRM) (spontaneous transmission) (Transmission on demand) (Dialogue procedures) S3 / (REQUEST/RESPOND) ( ) 6

12 ( ) ( ) -, (Standard frame syschronization) ( ) ( ) (Standard frame formates), 4 FT1.1 FT1.2 FT2 FT3 4 FT FT1.1 FT1.2 4 FT FT FT2 FT3 k k 8 FT1.2 FT2 I2 FT2 ( B.2),FT1.2, FT2 FT

13 4 (Standard frame formats and cade specification) FT (n,k) 1) d I 11 FT1.1 (11i,8 i) 2 I1 0 P 1 0 P 1 0 P ( ) i ( ) 1 ( ) 11 FT1.2 (11i+ 4 I2 0 P 1 0 P 1 0 P 1 0 CS P 1 : 11,8 i ( ) i i+1 ( ) 1 P ( ) P : ( ) CS n=16,24, n :P1: FT2 (8i+ 4 I2 CS=8 CS=8 x 7 +x 6 +x 5 +x ,8 i k=8,16, k 8 - i=1,2 (127,120), 15 8 n=16,24, n + :P2: FT3 (8i+ 4 I2 CS=16 CS=8 x 16 +x 13 +x 12 +x 11 x 10 16,8 i k=8,16, k 16 +x 8 +x 6 +x 5 +x 2 +1 i=1, (151,135), 1) (n,k) n = 16 ( ) ( ) k = FT1.1 2 (Format FT1.1:frames with Hamming distance 2)( 3) 8

14 (3) 0 0 L P 1 L 0 P P P 1 3 L 0 P 1 0 P 1 L 3 FT1.1 R1 1 R2 ( 0) ( 1) R3 R4 R7 22 R5 L R6 1 (D1) 1 0 R7 1 D1 0 R FT

15 FT1.2(Fomate FT1.2 with fixed number of user data)( 4) P P P 1 3 L 0 P P 1 4 L FT1.2 L, (CS) R1 1 R2 ( 0) ( 1) R3 R4 R6 33 R5 (CS). ( 256 ) R6 : R4 10

16 FT1.2 (FT1.2 formats with variable number of user data) ( 5) L P L P P P P P P 1 5 L FT1.2 L 2 (CS) L L R1 R2 R3 R4 R R6 : L 6 R (Frame format of single control characters) ( 6) 11

17 FT FT2: 4 (Format FT2:frames with Hamming distance 4) ( 7) ( ) FT2 12

18 FT2 (FT2 frames with fixed length) ( 8) n FT2 R1 1 R2 R3 15 R4 x 7 +x 6 +x 5 +x 2 +1 ( ) ( ) R5 R6 L L 45 L+3 L>=45, 48 R6 R FT2 (FT2 frames with variable length) ( 9) ( ),, 15 13

19 L n FT2 R1 R FT3 6 (Formate FT3:frames with Hamming distance 6) ( ) (Frames with fixed length) ( 10) 14

20 n FT R1 1 R2 R R4 x 16 +x 13 +x 12 +x 11 +x 10 +x 8 +x 6 +x 5 +x ( ) R5 R6 L L 48 L+6 L>=48, 54 R6, R5 15

21 (Frames with variable lengths) ( 11) ( ),, n 1 R1 R FT (Synchronization in transmission channel using switched carrier frequency) (idle line) m ( ) m 16

22 IEC ( 1 ) (Main application field of defined format classes) 2 FT1.1 4 FT1.2 FT2 FT (HDLC) (Use of HDLC(High level data link control)- protocols) ISO 3309 (HDLC) (HDLC) HDLC 1 2 I2 I3 17

24 A IEC , ( ) ( ) 50 ( A.1a), - ( ) (r.m.s)s=1 p= erfc(t/(2 2))= (a1) q=1-p= X erfc(x)=1-2/ π e -u2 du 0 ( A.1b) - -D q D, - (-T+D) r D D r (T-D), ±D, r p = erfc[(t-d)/ 2]-erfc[(T+D)/ 2]+erfc[(2T-D)/ 2]-erfc[(2T+D)/ 2] q =1-erfc(D/ 2). [T+D] (r) (p 0.5), ±D (r),p,p q (p) p erfc[2(1-d/t)erfc -1 (p)] q =1-erfc(2D/T)erfc -1 (p)] 18

25 IEC y=erfc -1 (x) x=erfc(y) q.... p... ( ) r=1- p - q... ( ) A.2;FT2 n=128 ( ±50%), ( ±40%) ( ±30%) A.2 (Influence of signal quality supervision on transmission efficiency and data integrity) B.1 FT1.1,FT1.2,FT2,FT3 (Residual errors of format classes FT1.1,FT1.2,FT2,FT3) i 19

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27 B IEC FT i n, R(iFT)=(R(FT)+q n ) I -q ni = ir(ft) (1-q)<<0.5 R(FT) q B 1 FT1.1 n =11 1 k= (11,8) - - d=2-0, 1 B 1.1 e A(FT1.1) e = 9 e, e=2,4,6,8. R(FT1.1) = ( 36p 2 q p 4 q p 6 q 3 + 9p 8 q ) q 2 p q I1 ( B.1) B 1.2 EFT(FT1.1) = 8/11q 11 = 0.73q 11 ( B.2) B 1.3 i FT1.1 ( ) EFT(iFT)=[8i/11(i+1)]q 11(i+1) i 21

28 B 2 FT1.2 IEC (11i+11,8i) d=4 i FT1.1 B R(FT1.2)=2-2-9 q 2i+2 (q+p) 9i+9 8 {[(q-p)/q+p)] j +[(q-p)/(q+p)] 9-j } i+1 11 i+11 -q j=0 j i i >1 FT1.2, R(FT1.2) 0.5,, R(FT1.2) q 11s s, R (FT1.2)=0.5R(FT1.2)q 11 s s=2(, ) s=5(, ) B.1 (FT1.2,i=1) 15 (FT1.2,i=15) B ( i+ s + 1 ) EFT(FT1.2)=[8i/11(i+s+1)]q i s B.2 (FT1.2,i=1) 15 (FT1.2,i=15) B 2.3 FT1.1 FT1.2 VDU ( B.1) 8 ( 7 8 ) 22

29 B 3 FT2 (8i+8,8i) i d=4 X 7 +X 6 +X 5 +X 2 +1 n 8 i 8 ( ) B 3.1 CS 8 k=8 I 8 I2 ( B.2) ( ) BCH (128,120) d=4, 8 d= n= B e A(FT2) 128, e =1/128[ e +(-1) e / e/2 ] e=4,6, ,124,128 n=8i+8 i=1,2... A(FT2)n,e=( e ) /128 e=4,6,8...n n R(FT2) n = A(FT2) n,e p e q n-e,e=4,6,8...n e FT2 I2 ( B.1) 8 ( ), q 8,R (FT2)=R(FT2) n q 8 B.1 1 (FT2, i =1) 15 ( FT2, i =15) 23

30 B 3.3 i 15 EFT(FT2) i/ (i+2) q 8(i+2) B.2 i=1 i=15 B 4 FT3 n 8 i 16 (8i+16,8i) i d=6 CS 16 k=8i 16 X 16 +X 13 +X 12 + X 11 +X 10 +X 8 +X 6 +X 5 +X 2 +1 B 4.1 ( ) BCH d=6, n B 4.2 n 8 i, i=3,4, e A(FT3) n, e 2-15 e, e=6,8... n R(FT3)n A(FT3) n,e p e q n-e e FT3 I2 ( B.1) 16 ( ), q 16,R (FT3)=R(FT3) n q 16 B.1 (FT3, i =1) 15 ( FT3, i =15) B i 16 EFT(FT3) i/ (i+4) q 8(i+4) 24

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33 C FOREWORD PREFACE ( Scope and Object Requirement for data transmission in telecontrol systems High data integrated and data consistency Short telecontrol transfer time ( )( ) Support of bit oriented(code transparent) Quantified rating of data integrity Quantitative requiments for data integrity in lelecontrol systems residual error rate rate residual information loss Quantified rating of transmission efficiency. Transmission protocol specification (DCE) Physical lay {Data circuit terminating equipment [DCE] Physical layer Link layer Link service classes provided Dialogue procedures Standard frame synchronization. Standard frame formats Synchronization in transmission channels using switched carrier frequency Main application field of defined format classes (HDLC)- Use of HDLC(High level data link control)- protocols Effect of signal quality supervision on transmission efficiency and data integrity Quantitative rating of data integrity and transmission efficiency Standard frame formats and code specification Data integrity calsses 27

34 Bit signal detection:without signal quality supervision Bit signal detection With signal quality supervision Influence of signal quality supervision on transmission efficiency and data integrity FT1.1,FT1.2,FT2,FT3 Residual errors of format classes FT1.1,FT1.2,FT2,FT3 FT1.1,FT1.2,FT2,FT3 Frame transmission efficiency of format classes FT1.1,FT1.2 FT2,FT3 28

35 D L / T X X X X DL/T XXXXX.XX XXXX * ( XXX * 19XX X X 19XX X X 880X1230 1/16 X XX 1-XXXXX * :XXXXXX.X-XXX X.XX

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要及时为入党积极分子确定两名培养联系人, 进行联络帮助要定期 ( 每季度至少一次 ) 听取培养联系人的思想和工作情况汇报, 及时完成入党积极分子登记表 ( 见附件 2) 的填中共兰州资源环境职业技术学院委员会文件兰资环院党发 2016 40 号关于进一步规范党员发展工作和从严管理党员的通知各系党总支支部 : 为进一步规范和加强发展党员工作, 从严管理党员, 确保发展党员质量, 提高各基层党组织的