HARDWARE ENVIRONMENT FACTOR FOR CONTROL SIGNAL TRANSFER TO A PLANT IN THE SYNTHESIS PROBLEM OF DISCRETE SYSTEMS

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А -Е Е Е А Ы Е , Е А

ию ь–а 2015 о 15 № 4 ISSN 2226-1494 http://ntv.ifmo.ru/ SCIENTIFIC AND TECHNICAL JOURNAL OF INFORMATION TECHNOLOGIES, MECHANICS AND OPTICS July–August 2015 Vol. 15 No 4 ISSN 2226-1494 http://ntv.ifmo.ru/en

519.711: 65.51

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HARDWARE ENVIRONMENT FACTOR FOR CONTROL SIGNAL TRANSFER

TO A PLANT IN THE SYNTHESIS PROBLEM OF DISCRETE SYSTEMS

O.S. Nuyyaa, R.O. Peshcherova, A.V. Ushakova

a

ITMO University, Saint Petersburg, 197101, Russian Federation Corresponding author: [email protected]

Article info

Received 26.12.14, accepted 27.03.15 doi:10.17586/2226-1494-2015-15-4-685-694 Article in Russian

For citation: Nuyya O.S., Peshcherov R.O., Ushakov A.V. Hardware environment factor for control signal transfer to a plant in the synthe-sis problem of discrete systems. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2015, vol.15, no. 4, pp. 685–694.

Abstract

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that the length of a parallel bus is limited to an amount not exceeding half a meter due to the existing interference environment with modern standards of length. Thus, if the placement of the control signal and control plant is such that their connecting bus length exceeds more than half a meter, there is the inevitable transition from the parallel control signal to an allotted serial. The paper deals with the system factors arising in the transition from the parallel control signal to the serial by modern interfaces. Provisions of the paper are illustrated by an example. This paper is intended for system analytics and channel specialists. The resulting algorithm is applicable for control of plants (electric drive, in particular) in the large industrial factories.

Keywords

digital control signal, hardware environment, serial interface, aggregated discrete model of the plant.

Acknowledgements

The work has been partially financially supported by the Government of the Russian Federation (Grant 074-U01) and the Ministry of Education and Science (Project 14. Z50.31.0031).

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t 

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6

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,

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5.2.6. n_А  n 2 4

, t D

0

 t 7,8 ₀,D0, 25₀,

3 3

0

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3 3 1

0

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5.3. (SB CAN , L = 100 )

5.3.1. SB – CAN :

 – ;

 – 500 ;

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(9)

 – .

5.3.2. К



c,



_12; ₂₈

c d c c

c _k _n _n _k _m

n k _{ } _{  } =(27,12).

5.3.3. t_b ,

5 5 10

С  К, 6

2 10 b

t 

   .

5.3.4. t_А (12)   tА tА



t nb, c



=  tА 2 t nb( c3)= =_{2 30 2 10}_ _{ } 6

=1, 2 10 4 .

5.3.5. n_А  n 2 4

,

 



 0

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0 0 0

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5.3.6. n_А  n 2 4

, t D

0

ω t 7,8 0,D0, 250,

4 4

0

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t      

4 3 1

0

0, 25ω 0, 25 (1,3 10 ) 3, 25 10

D       c SB.

5.4. (SB – CAN , L = 5000 )

5.4.1. – CAN :

 – ;

 – 10 .

 – CRC 15 14 10 8 7 4 3

( )x x x x x x x x 1

g

(m15) ;

 – .

5.4.2. К



c,



_12; ₂₈

c d c c

c _k _n _n _k _m

n k _{ } _{  } =(27,12).

5.4.3. tb ,

4 10

С К,  t_b 104 .

5.4.4. t_А (12)   tА tА



t nb, c



=  tА 2 t nb( c3)= =_{2 30 10}  4

=_{6 10} 3 .

5.4.5. n_А  n 2 4

,

 



 0

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arg

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А

t

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3

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1

0 0 0

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5.4.6. n_А  n 2 4

, t D

0

ω t 7,8 0,D0, 250,

0

7,8 ω 7,8 / 262 0, 03

t   

1 0

0, 25ω 0, 25 262 65,5

D     c SB.

-.

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-, CRC- ,

-, .

,

.

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я ь а я а а – , , , ,

- , 197101, ,

[email protected]

а – , , - , 197101,

, [email protected]

У а А а В а – , , ,

, - , 197101, ,

[email protected]

Olga S. Nuyya – PhD, Associate professor, Associate professor, ITMO University, Saint

Petersburg, 197101, Russian Federation, [email protected]

Ruslan O. Peshcherov – postgraduate, ITMO University, Saint Petersburg, 197101, Russian

Federation, [email protected]