Izindaba Zemboni

Ukuhlonza Ikhebula II

2021-03-03





Ukuhlonza Ikhebula II


Ukukhethwa kokuqaphaikhebula

IkhebulaUkukhetha

 

1,I-CCTVikhebula

 

Ibanga phakathi kwekhamera nomphathi wokuqapha lingaphansi noma lilingana namamitha ayi-200, kusetshenziswa ikhebula levidiyo le-RG59 (128 series).

 

Ibanga phakathi kwekhamera nomphathi wokuqapha lingaphezu kwamamitha angama-200, kusetshenziswa ikhebula levidiyo le-SYV75-5.

 

2, ukulawula kwe-PTZikhebula

 

Ibanga phakathi kwepani / ukutsheka nesilawuli100m, bese usebenzisa i-RVV6×Ikhebula le-sheats elingu-0.5.

 

Ibanga phakathi kwepani / ukutsheka nesilawulimore than 100 meters, using RVV6×Ikhebula le-sheathed elingu-0.75.

 

3,Lukulawulwa kwe-ensikhebula

 

Sebenzisa i-RVV4×Ucingo olungu-0.5.

 
4,Dukuxhumana kwe-ecoderikhebula

kufanele isebenzise i-RVV2×1 i-pair evikelekile esontekile

 

5,Cintambo yamandla ka-amera

 

Uma uhlelo lunamakhamera ajwayelekile angama-20, futhi ibanga elijwayelekile phakathi kwekhamera nomphathi wokuqapha lingamamitha angama-50, i-BVV6m2 copper core plastic wire kufanele isetshenziswe njengolayini omkhulu wamandla. Izintambo zikagesi ezisetshenziswa emabangeni ahlukene zikhonjiswa kuthebula elilandelayo:

 

Ibanga elijwayelekile phakathi kwekhamera nomphathi wokuqapha ngama-34 ~ 50m 21 ~ 33m20m

 

Ukucaciswa kwentambo yamandla (imigqa emi-2) 6m24m22.5m2

 

Ukuqapha ukubeka umugqa wohlelo

 

1. Cautions for laying the video ikhebula

 

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 ikhebula can be used. If it exceeds 200 meters, the SWY-75-5 video ikhebula should be used to ensure the monitoring image the quality of.

 

1.2. Kumakhamera afakwe kumakheshi, imikhombe yensimbi ehlanganisiwe kufanele isetshenziselwe ukuhlanganisa izintambo kushova wesikheshi futhi ibekelwe phansi ukunciphisa ukuphazamiseka kwesiginali yevidiyo lapho i-elevator motor iqala.

 

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 ikhebulas. 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. Izinyathelo zokuphepha zokubeka izintambo zokulawula

 

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 lukulawulwa kwe-ensler, the control line should be selected according to the distance between the camera and the pan/tilt lukulawulwa kwe-ensler. When the distance is less than 100 meters, the pan/tilt control line can use RVV6×Umugqa osikiwe ongu-0.5; lapho ibanga lingaphezu kwamamitha ayi-100, intambo yokulawula i-pan / sitsheke kufanele isebenzise i-RVV6×0.75 sheathed line, and the lukulawulwa kwe-ens line uses RVV4×0.5 Sheathed ikhebula.

 

Uma isistimu yokuqapha i-analog ilawula i-pan / sitsheke nelensi ngesilawuli se-matrix control, i-decoder ngokuvamile iyadingeka. Ngokuhleleka kwesekethe yokulawula, sicela ubheke izidingo zobuchwepheshe besilawuli se-matrix control host esetshenzisiwe.

 

2.2. Kuhlelo lokubhekwa kwedijithali, uma ikhamera efakwe ilensi yokusondeza i-pan / tilt lens, i-pan / sitsheke nelensi kumele zilawulwe nge-decoder. Idekhoda ivamise ukufakwa eceleni kwekhamera, kuthi idikhoda nerekhoda yedijithali basebenzise ibhasi le-RS485 ukuxhumana. Izintambo kufanele zisebenzise i-RVVP2×1 shielded twisted-pair ikhebula 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.

 

Idikhoda inezinhlobo ezimbili zokuphakelwa kukagesi: i-AC220V ne-AC24V. Uma kukhethwa i-AC24V decoder, ngokuvamile ihlinzekwa i-AC24V transformer. Kubaluleke kakhulu ukuthi wazi ukuthi ngenxa yokuphazamiseka kokukhishwa kwamandla kagesi we-DC12V ngamanye ama-decoder, kuzoba nomthelela othile esithombeni lapho sisetshenziselwa ukunikezwa kwamandla ekhamera, ngakho-ke kuyadingeka ukuthi unikeze ngokufanayo ikhamera (12V).

 

3. Izexwayiso zokubeka intambo yamandla yekhamera

 

Ukusebenza kwamakhamera ajwayelekile emakethe asebenzisa ugesi we-DC12V cishe kungama-200 ~ 300mA, futhi amakhamera ahlanganisiwe angama-350 ~ 400mA. Uma inani lamakhamera lincane (ngaphansi kuka-5) futhi ibanga phakathi kwekhamera nomphathi wokuqapha lisondele (ngaphansi kwamamitha angu-50), ikhamera ngayinye ingafakwa izintambo ngazinye nge-RVV2×Intambo yamandla engu-0.5 egumbini lokuqapha futhi inikwe amandla yi-transformer encane. Uma inani lamakhamera likhulu, amandla kagesi aqinile we-12V DC kufanele asetshenziselwe ukunikezwa kwamandla okuphakathi.

 

Ohlelweni lokuklama kanye nenqubo yokwakha, kuyadingeka ukuthi kubhekwe amandla aphelele awo wonke amakhamera nokwehla kwamandla kagesi okubangelwa ulayini wokudlulisa (owaziwa kakhulu ngokuthi "ukulahleka kolayini", ukumelana nentambo yethusi engu-1m2 nge-100m kungu-1.8Ω). Okweqapha isakhiwo, izintambo ezimbili zepulasitiki ezimbili ezisetshenziswa njengamandla amakhulu okuhola ukusuka egumbini lokuqapha ziye emgqeni kahle, bese uhamba umugqa kahle uye kulayini phansi lapho ikhamera ngayinye itholakala. Ukunikezwa kwamandla kwekhamera ngayinye phansi, i-RVV2 eyodwa×1 noma i-RVV2×1.5 (uma inani lamakhamera kuleli phansi lidlula u-6) izintambo zikagesi zingasetshenziswa ukunikezela amandla kumakhamera, noma ukusebenzisa i-RVV2×Izintambo ze-sheath ze-sheath zokuxhumana okuya kokukodwa zinikwe amandla yi.