D:\sbornik\...\19Davit\rev.DVI


Mathematical Problems of Computer Science 31, 167{168, 2008.

T he Subsystem of I nfor ming on Cr itical Situations

T hr ough Cor r espondence in ACM Cluster

D. Petrosyan, D. Gevorgyan and K. Khachaturyan

Institue for Informatics and Automation Problems of NAS of RA

On t h e b a s e o f m o b ile c o m m u n ic a t io n o p p o r t u n it ie s t h e A CM s ys t e m a llo ws t o b e we ll-
in fo r m e d a b o u t t h e e xt r e m e s it u a t io n s o c c u r r in g in t h e wo r kin g t e r r it o r y o f Clu s t e r t h r o u g h
c a llin g t h e p h o n e n u m b e r o f t h e c o r r e s p o n d in g t e c h n ic a l s t a ® g ive n b e fo r e h a n d , b e s id e s it
m a n a g e s a n d p r o t e c t s t h e wo r kin g t e r r it o r y o f Clu s t e r fr o m ille g a l e n t r a n c e , a ls o a llo w-
in g t o fo r m a fr e qu e n c y-t im e m o n it o r in g o f p e o p le e n t e r in g t h a t t e r r it o r y. A lo n g wit h t h e
b a s ic wo r kin g p r o g r a m s , p r e ve n t io n fr o m ille g a l e n t r a n c e a n d ¯ r e p r o t e c t io n s ys t e m s ( via
in fo r m a t io n fr o m t h e r m a l, m a g n e t ic -c o n t a c t , in fr a -r e d , o p t ic a l t r a n s m it t e r s ) in Clu s t e r , it s
t e c h n ic a l p a r a m e t e r s o b t a in in g is r e g u la r ly p e r fo r m e d , wh e r e t h e t e m p e r a t u r e , wo r kin g s t a t e
a n d o t h e r p a r a m e t e r s o f t h e e le c t r o n ic e qu ip m e n t s a va ila b le in Clu s t e r a r e e s t im a t e d . A n d ,
o f c o u r s e , it is d e s ir a b le a n d n e c e s s a r y t o g o ve r n t h o s e p a r a m e t e r s ( fo r c e r t a in g o a ls , p a r -
t ic u la r ly p r o vid in g fo r a n a lys is , s t a t is t ic s , s e c u r it y) , t o c o n t r o l a n d p r e ve n t o r a r r a n g e t h e
e xt r e m e s it u a t io n s a r is in g in t h a t e qu ip m e n t s if n e c e s s a r y. Th o u g h t h e r e a r e m e c h a n is m s in
Clu s t e r d e s ig n e d t o d is c o ve r a n e xt r e m e s it u a t io n a b o u t a n y e qu ip m e n t , it is a c t u a l t o g e t
e m e r g e n c y in fo r m a t io n im m e d ia t e ly wh e n b e in g o u t o f t h e wo r kin g t e r r it o r y o f Clu s t e r . Th e
A CM s ys t e m h a s b e e n e s t a b lis h e d fo r t h is g o a ls . It is b a s e d o n t h e m o b ile c o m m u n ic a t io n
o p p o r t u n it ie s a n d a llo ws t o in fo r m a b o u t e xt r e m e s it u a t io n s . A CM p r o g r a m a llo ws " h is "
u s e r s t o e n t e r t h e wo r kin g t e r r it o r y o f Clu s t e r a ft e r t u r n in g o ® t h e p r o t e c t io n fr o m ille g a l
e n t r a n c e s ig n a l s ys t e m o f t h e wo r kin g t e r r it o r y o f Clu s t e r , p r o vid in g t h a t t h e p r o t e c t io n
s ig n a l s ys t e m is t u r n e d o n wh e n g o in g o u t o f t h e t e r r it o r y. A n d t h e s ys t e m " r e c o g n iz e s "
it s u s e r s a c c o r d in g t o t h e p a s s wo r d im p o r t e d d u r in g t h e r e g is t r a t io n in t h e u s e r s ' s ys t e m .
U p o n d ia lin g t h e s p e c ia l p h o n e n u m b e r o f t h e s ys t e m a n d e n t e r in g t h e m a in m e n u o f A CM
p r o g r a m , t h e s ys t e m d e m a n d s t o im p o r t t h e p a s s wo r d o f t h a t u s e r b e fo r e h a n d , a n d t h e n it
c a n im p le m e n t t h e fo llo win g a c t io n s ,
1 . t u r n o ® t h e p r o t e c t io n fr o m ille g a l e n t r a n c e s ig n a l s ys t e m o f t h e wo r kin g t e r r it o r y o f
Clu s t e r ,
2 . t u r n o n t h e p r o t e c t io n s ig n a l s ys t e m o f t h e wo r kin g t e r r it o r y o f Clu s t e r fr o m ille g a l e n -
t r a n c e ,
3 . o b t a in d e ¯ n it e c u r r e n t p a r a m e t e r s a b o u t s o m e p h ys ic a l e qu ip m e n t s o f Clu s t e r ( t h e a m o u n t
o f wo r kin g p r o c e s s o r s , e t c .)

B e s id e s g ivin g t h e e n t r a n c e r ig h t t o t h e u s e r s , t h e s ys t e m r e g is t e r s t h e u s e r s o f it s s e r vic e s
a c c o r d in g t o t im e ( e .g . wh e n t h a t u s e r e n t e r e d t h e wo r kin g t e r r it o r y o r wh e n le ft ) . A s it wa s
m e n t io n e d a b o ve m o n it o r in g o f t e c h n ic a l p a r a m e t e r s , in c lu d in g t e m p e r a t u r e , wo r kin g s t a t e
a n d o t h e r p a r a m e t e r s o f t h e e le c t r o n ic e qu ip m e n t s o f Clu s t e r is r e g u la r ly p e r fo r m e d , in t h e
p r o c e s s o f wh ic h t h e p a r a m e t e r s a r e e s t im a t e d . In c a s e e xt r e m e s it u a t io n s a r is e in Clu s t e r

1 6 7



1 6 8 The Subsystem of Informing on Critical Situations Through Correspondence in ACM Cluster

a n d o t h e r r o o m s a d ja c e n t t o it t h e n p r e s e n c e o f c r it ic a l p a r a m e t e r s s p e c ī c t o t h e s t r u c t u r e
o f e le c t r o n ic e qu ip m e n t s , b e in g d a m a g e d o r in e xt r e m e s it u a t io n is ¯ xe d in t h e m o n it o r in g
s u b s ys t e m . A ll t h e t e c h n ic a l p a r a m e t e r s d e r ive d fr o m Clu s t e r a r e a n a lyz e d in t h e o u t lin e d
s ys t e m a n d a r r a n g e d in a s p e c ia l b a s e . Th e p a r a m e t e r s r e c e ive d in t h e c o n d it io n s o f n o r m a l
wo r kin g s it u a t io n fr o m e a c h e le c t r o n ic e qu ip m e n t ( a s n u m e r ic a l in d ic a t o r s ) , a r e in a d e ¯ n it e
kn o wn in t e r va l, t h e n in c a s e o f p a r a m e t e r va lu e s o u t o f t h o s e in t e r va ls ( e .g . a n y e qu ip m e n t
is o ve r h e a t e d ) , t h e n u m b e r o f t h e e qu ip m e n t a n d t h e n u m e r ic a l in d ic a t o r o f t h e p a r a m e t e r s
o u t o f it s in t e r va l a r e d e d u c e d . Th e p a r a m e t e r s a r e r e c e ive d b y t h e s ys t e m wit h t h e h e lp
o f t h e t e c h n o lo g y b a s e d o n IP d is t a n t c o m m u n ic a t io n , a n d t h e n t h e s ys t e m a u t o m a t ic a lly
c a lls t h e p h o n e n u m b e r o f t h e c o r r e s p o n d in g t e c h n ic a l s t a ® g ive n b e fo r e h a n d a n d in fo r m s
o n s p e c ī c a lly wh ic h p r o c e s s o r is u n d e r c r it ic a l s it u a t io n .

Refer ences

[1 ] Âàðäàíÿí, Ä. Ãåâîðêÿí, À. Íàíàñÿí, Â. Ñààêÿí, Ä. Òàäåâîñÿí, Ê.Õà÷àòðÿí,
ÀÊÌ (ÀðìÊëàñòåðÌîíèòîð) - ñèñòåìà ìîíèòîðèíãà òåõíîëîãè÷åñêèõ ïàðàìåòðîâ,
âûñîêîïðîèçâîäèòåëüíîé ñèñòåìû ”ÀðìÊëàñòåð”. CSIT 2007

²ÎØ Îɳëï»ñáõÙ ÏñÇïÇÏ³Ï³Ý Çñ³íÇ׳ÏÝ»ñÇ Ù³ëÇÝ
Ñ»é³Ï³ ï»Õ»Ï³óÙ³Ý »Ýóѳٳϳñ·Á

¸.ä»ïñáëÛ³Ý, ¸. ¶¨áñ·Û³Ý, Î. ʳã³ïñÛ³Ý

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²ÎØ Ñ³Ù³Ï³ñ·Á‘ Ñ»Ýí»Éáí µçç³ÛÇÝ Ï³åÇ Ñݳñ³íáñáõÃÛáõÝÝ»ñÇ íñ³, ÃáõÛÉ ¿
ï³ÉÇë Çñ³½»Ïí»É Ïɳëï»ñÇ ³ß˳ï³Ýù³ÛÇÝ ï³ñ³ÍùáõÙ å³ï³Ñ³Í >ùëïñ»Ù³É
Çñ³íÇ׳ÏÝ»ñÇ Ù³ëÇÝ, ½³Ý·³Ñ³ñ»Éáí ݳ˳å»ë ïñí³Í ѳٳå³ï³ëË³Ý ï»ËÝÇϳϳÝ
ϳ½ÙÇ Ñ»é³Ëáë³Ñ³ñÇÝ, µ³óÇ ¹ñ³ÝÇó ³ÛÝ Ï³é³í³ñáõÙ ¨ å³Ñå³ÝáõÙ ¿ Ïɳëï»ñÇ
³ß˳ï³Ýù³ÛÇÝ ï³ñ³ÍùÁ ³åûñÇÝÇ Ùáõïù ·áñÍ»Éáõó, ÃáõÛÉ ï³Éáí ݳ¨ ϳ½Ù»É ³Û¹
ï³ñ³Íù ÙïÝáÕ ³ÝÓ³Ýó ѳ׳˳ϳÝ-ųٳݳϳÛÇÝ ÙáÝÇïáñÇÝ·: