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Tm hiu h thng bo chy a chng lc: Th by - 30/05/2015 16:10 - Ngi ng bi vit: phuongnam

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M hnh h thng bo chy tng theo a ch

Nhng ngy nh im ca nng nng cng l nh im ca cng tc phng chy cha chy, thi gian gn

y nhiu v chy gy tn tht v vt cht v con ngi giy ln hi chung cnh bo v h thng bochy Vit Nam

H thng bo chy t ng theo a ch v bn cht l mt h thng iu khin mng. N

ch truyn c 1 bit ( ngha l chy hay khng) nn d liu truyn trong mng l rt nh, tc

truyn khng cn cao ( trnh sai s trong mng) v tt c u c gin lc tin

cy ca h thng l cao nht.

V h thng ny th c rt nhiu hng nh Notifier, Nohmi, Hochiki, Siemems,... u c.

Cch t tn cng khc nhau. Tuy nhin v hnh dung H thng bo chy t ng theo a

ch c 2 loi chnh l loi sensor v loi module.

Sensor l cc u d nhit v khi c a ch. Khi cc sensor loi ny bo, ta c th bit

chinh im no ang bo nu bn graphic ha trung tm gim st FA

H thng bo chy t ng theo a ch FireNet s dng giao thc truyn thng k thut s

tin tin DCP (Digital communication protocol). DCP l giao thc do Hochiki nghin cu

pht trin. Giao thc ny cho php giao tip tc cao, chnh xc gia cc thit b vi trung

tm ca h thng bo chy, gim thiu ti a nhiu tn hiu trn ng truyn.

Do s dng giao thc tin tin DCP vi kh nng chng nhiu cao nn h thng cho php

s dng dy dn thng thng, khng cn s dng dy c v bc chng nhiu, hoc dy

xon nh h thng ca cc hng khc. iu ny gip cho tit kim chi ph m h thng vn

lm vic n nh, hiu qu so vi cc h thng bo chy t ng khc



H thng bo chy t ng theo a ch

Cng c th dng u bo loi conventional cho H thng bo chy t ng theo a

ch nhng bn phi dng mt module gim st c gi l monitor module hay zone

module ty theo hng. Mi module loi ny c th ni t 14 - 17 u bo conventional. Bn

cng c th dng module ny gim st trng thi cc thit b khc nh bm cha chy,

my pht, van h cha chy,...

Control module l module iu khin chung 24VDC. Nu bn dng chung bo 220VAC

hay 24VAC hay chung c cng sut ln th dng mt module khin loi khc l relay

module.

Mt s ni tp chung nhng im gim st v iu khin nh bm nc chng hn, bn

mun h FA bt bm v gim st trng thi ca chng. Tt nhin lc ny cn rt nhiu

Input v Output nn phi dng i tng l I/O module cho H thng bo chy t ng

theo a ch

* u bo nhit (H thng bo chy t ng theo a ch):

- N cng c nhng c im v H thng bo chy t ng theo a ch nh u bo khi.

t trn trn nh, ti nhng ni m tin liu rng hi nng (nhit) xut hin trong bu

khng kh chung quanh u bo nh l du hi u tin khi c chy xy ra.

- Nhit pht ra t ngun chy, kch hot b phn cm nhit ca u bo khi, v kch hot

tn hiu bo ng, truyn v t ca h thng bo chy a ch

- C 2 loi u bo nhit: u bo nhit c nh v u bo nhit gia tng.

- u bo nhit c nh kch hot tn hiu bo ng khi nhit chung quanh n tng ln

ti mt ngng c xc nh trc, th d 58 C, 68 C, 108 C chng hn.

- Cn u bo nhit gia tng th kch hot tn hiu bo ng khi nhit chung quanh n

t ngt tng ln bt thng trong mt khong thi gian ngn, th d tng t ngt 6

C/pht, 8 C/pht.

Cc bn hn c nhng kin thc v H thng bo chy t ng theo a ch sau khi c

bi vit ny, nu nh cn thc mc hay nhu cu lp t H thng bo chy t ng theo a

ch th cc bn c th lin h qua sdt hotline: 01293 858585 hoc truy cp vo website:

phuongnamco.net c nhng t vn chnh xc nht



T kha:

cng tc, thi gian, gn y, tn tht, vt cht, cnh bo, h thng

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