Xov Xwm Kev Lag Luam

Kev Xam Xaj Cable II

2021-03-03





Kev Xam Xaj Hlab hlau II


Kev xaiv ntawm kev saib xyuastxoj sia hlau

Hlab hlauxaiv

 

1,CCTVtxoj sia hlau

 

Qhov kev ncua deb ntawm lub koob yees duab thiab saib xyuas lub tsev yog tsawg dua lossis sib npaug li 200 metres, siv RG59 (128 series) cov yeeb yaj kiab txoj sia hlau.

 

Qhov kev ncua deb ntawm lub koob yees duab thiab saib xyuas lub tsev yog ntau tshaj 200 meters, siv SYV75-5 video txoj sia hlau.

 

2, PTZ tswjtxoj sia hlau

 

Qhov kev ncua deb ntawm yias / qaij thiab maub los yog100m, thiab siv RVV6×0.5 sheathed txoj sia hlau.

 

Qhov kev ncua deb ntawm yias / qaij thiab maub los yogmore than 100 meters, using RVV6×0.75 xov sheathed.

 

3,Ltswj hwmtxoj sia hlau

 

Siv RVV4×0.5 sheathed hlau.

 
4,Dcov neeg txuas lus ecodertxoj sia hlau

yuav tsum siv RVV2×1 daim thaiv npog puas muaj khub

 

5,Camera fais fab qaum

 

Yog tias lub kaw lus muaj 20 lub koob yees duab zoo tib yam, thiab qhov nruab nrab nruab nrab ntawm lub koob yees duab thiab lub tsev tswj xyuas yog 50 metres, BVV6m2 tooj liab tub ntxhais ob chav yas hlau yuav tsum siv txoj kab hluav taws xob loj. Lub zog kab siv nyob ntawm qhov sib txawv tau qhia nyob rau hauv lub rooj hauv qab no:

 

Qhov nruab nrab nruab nrab ntawm lub koob yees duab thiab lub chaw saib xyuas yog 34 ~ 50m 21 ~ 33m20m

 

Lub hwj chim qaum tshwj xeeb (2 kab) 6m24m22.5m2

 

Saib xyuas kab ke tso

 

1. Cautions for laying the video txoj sia hlau

 

1.1. If the distance between the camera and the monitoring host (image processor, matrix control host or digital video recorder) is less than 200 meters, the RG59 video txoj sia hlau can be used. If it exceeds 200 meters, the SWY-75-5 video txoj sia hlau should be used to ensure the monitoring image the quality of.

 

1.2 .2. Rau cov koob yees duab tau teeb tsa hauv lub tshuab nqa hluav taws xob, galvanized iron troughs yuav tsum tau siv rau cov xov hluav taws xob hauv lub thaiv ncej thiab hauv av kom txo cov kev cuam tshuam rau lub teeb liab video thaum lub tshuab nqa lub elevator pib.

 

1.3. If the camera is installed outdoors (such as the entrance of a compound or a parking lot, etc.), the line needs to be routed outdoors or through overhead steel txoj sia hlaus. If conditions permit, video arrestrs should be installed (because the installation of lightning protection equipment will cause The total project cost increases), that is, one video arrester is installed on the camera side and the monitoring host side respectively, and each video arrester must be grounded (outdoor cameras must be grounded separately, and the video arresters in the monitoring room can be grounded uniformly), To prevent damage to the equipment caused by induction lightning.

 

2. Kev ceev faj rau txheej txheej tswj cov xov hlau

 

2.1. In the analog monitoring system, if a camera equipped with a pan/tilt zoom lens is installed and controlled by a pan/tilt ltswj hwmler, the control line should be selected according to the distance between the camera and the pan/tilt ltswj hwmler. When the distance is less than 100 meters, the pan/tilt control line can use RVV6×0.5 cov kab sheathed; thaum qhov kev ncua deb yog siab tshaj 100 meters, yias / qaij tswj kab yuav tsum siv RVV6×0.75 sheathed line, and the ltswj hwm line uses RVV4×0.5 Sheathed txoj sia hlau.

 

Yog tias kev saib xyuas hluav taws xob analog tswj lub yias / qaij thiab lub lens dhau los ntawm chav tswj hwm matrix tswj tuav, feem ntau yuav tsum tau txiav cov lej txiav tawm. Rau cov tswj Circuit Court txheej txheem, thov xa mus rau cov txheej txheem cov cuab yeej ntawm cov kev tswj hwm matrix host siv.

 

2.2. Hauv qhov digital digital surveillance system, yog tias lub koob yees duab nruab nrog lub yias / qaij rub lub lens yog ntsia, yias / qaij thiab lens yuav tsum tswj hwm los ntawm lub ntsuas phoo. Tus lej txiav txim siab feem ntau nruab ib sab ntawm lub koob yees duab, thiab tus neeg txiav suab thiab daim kab xev yees duab digital siv RS485 npav sib txuas lus. Cov kab hluav taws xob yuav tsum siv RVVP2×1 shielded twisted-pair txoj sia hlau from the digital video recorder to the nearest decoder 1, and then from decoder 1 to decoder 2... The current 16-channel digital video recorder can connect up to 16 decoders. The total length of RS485 communication line can be up to 1200 meters. The wiring diagram is as follows: see the relevant posts in the basic knowledge.

 

Tus lej ntsuas roj muaj ob hom kev xa xov hluav taws xob: AC220V thiab AC24V. Yog tias AC24V qhov ntsuas phoo raug xaiv, feem ntau yog muab los ntawm AC24V kev hloov pauv. Nws yog qhov tshwj xeeb kom nco ntsoov tias vim muaj kev cuam tshuam ntawm DC12V lub zog tso tawm hluav taws xob los ntawm qee qhov txiav txim, nws yuav muaj feem cuam tshuam rau cov duab thaum siv rau lub koob yees duab fais fab mov, yog li nws tsim nyog los muab lub koob yees duab (12V).

 

3. Kev ceev faj ntawm kev tso lub hwj chim qaum ntawm lub koob yees duab

 

Kev khiav hauj lwm tam sim no ntawm cov koob yees duab zoo tib yam rau ntawm kev ua lag luam uas siv DC12V fais fab mov yog li 200 ~ 300mA, thiab cov koob yees duab sib xyaw yog 350 ~ 400mA. Yog tias cov naj npawb ntawm cov koob yees duab me me (tsawg dua 5) thiab qhov kev ncua deb ntawm lub koob yees duab thiab lub tsev tswj xyuas tau ze yog qhov sib txawv (tsawg dua 50 metres), txhua lub koob yees duab tuaj yeem yog ib qho xov nrog RVV2×0.5 fais fab qaum rau chav tswj xyuas thiab siv los ntawm hloov pauv me me. Yog tias cov naj npawb ntawm cov koob yees duab loj, ib lub zog loj 12V DC ruaj khov fais fab fais fab yuav tsum siv rau cov hluav taws xob nruab nrab.

 

Hauv cov txheej txheem kev tsim qauv thiab kev tsim kho, nws yog qhov yuav tsum txiav txim siab tag nrho lub zog ntawm txhua lub koob yees duab thiab qhov poob hluav taws xob los ntawm kev sib kis kab (feem ntau hu ua "kab poob", qhov tsis kam ntawm 1m2 tooj liab hlau rau 100m yog 1.8Ω)). Txog kev saib xyuas lub tsev, ob lub 2.5-6m2 tooj liab tub ntxhais ob txoj xov yas yog feem ntau siv los ua cov khoom siv hluav taws xob loj kom coj los ntawm chav saib xyuas txoj kab mus rau txoj kab zoo, thiab taug kev txoj kab kom zoo rau txoj kab zoo ntawm hauv av qhov chaw. txhua lub koob yees duab nyob. Rau lub zog muab ntawm txhua lub koob yees duab hauv pem teb, ib qho RVV2×1 lossis RVV2×1.5 (yog tias cov naj npawb ntawm cov koob yees duab hauv pem teb no siab dua 6) cov hlua txuas hluav taws xob tuaj yeem siv los muab fais fab rau cov koob yees duab, lossis siv RVV2×0.5 cov kab xov xaim rau ib-rau-ib qhov kev hais daws kho los ntawm.