Whakarāpopototanga TL;DR

Ka tukuna e ngā pūnaha waea ataata waea-rua te ataata, te oro, me te hiko mā te taura takirua miro kotahi, ka māmā ake te tāutanga ki te whakataurite ki ngā momo waea maha. Ko ngā painga matua ko te whakaiti i ngā utu taura (40% te iti iho i ngā pūnaha tuku iho), te ngāwari ake o te whakahou i ngā whare o nāianei, me te hototahi ki ngā hanganga tawhito. Ko ngā herenga ko ngā here tawhiti (100-150 mita te nuinga), te iti ake o te kounga ataata ki te whakataurite kiNgā pūnaha IP, me te iti o te tauine.

Kupu Whakataki: Te Mārama ki te Hangarau Waea Ataata 2-Waea

Ko te pūnaha waea ataata waea-rua he hoahoa whakawhitiwhiti kōrero e whakakotahi ana i te ataata, te oro, me te tuku hiko ki roto i tētahi taura takirua miro kotahi. Mā tēnei hangarau ka honoa te āputa i waenga i ngā pūnaha anaro tuku iho me ngā otinga IP hou.

E ai ki te Consumer Technology Association (CTA), ko ngā pūnaha waea-rua te 28% o te mākete waea noho, ā, ko te uara o tēnei pūnaha he $3.2 piriona puta noa i te ao i te tau 2026.

Ka whakamahia e te hangarau te tukatuka tohu matihiko hei whakarea i ngā awa raraunga maha ki runga i ngā ara iahiko e rua. He rerekē ki ngā pūnaha waea-4, waea-6 rānei tuku iho e hiahia ana ki ngā ara motuhake mō ngā tohu ataata, oro, hiko, me te whakahaere, ka whakamahia e ngā pūnaha waea-2 te whakarea wehenga auau, te whakakōwae matihiko rānei hei whakakotahi i ēnei mahi.

Ngā Painga o ngā Pūnaha Whakawhiti Ataata Waea-2

Te Tāutanga Ngāwari me te Whakaiti i ngā Utu Mahi

Ka tino heke te uaua o te tāutanga me ngā pūnaha waea-rua. E ai ki te whakatau a te National Electrical Contractors Association (NECA) ka taea te penapena mahi mā te 35-45% ki te whakaritea ki ngā tāutanga waea-maha.

Ka tukuna e ngā kaimahi hiko tētahi taura kotahi mai i te waeine matua ki ia teihana, ka whakaitihia te hiahia mō ngā paipa me te urunga ki te pakitara.

Te Hototahi ki ngā Hanganga o nāianei

He maha ngā pūnaha waea-rua e whakamahi ana i ngā taura waea paerewa (Cat3) me ngā waea takirua miro e kitea ana i roto i ngā whare i hangaia i muri i te tau 1980. Nā tēnei hototahitanga ka kore e hiahiatia te whakahou i ngā waea i te wā o ngā whakahoutanga.

He maha ngā wā ka mahi tahi ngā pūnaha me ngā teihana tatau o nāianei me ngā aroturuki o roto, kia mau tonu ai ngā haumitanga ki ngā taputapu tawhito.

Te Whai Hua o te Utu mō ngā Tāutanga Iti ki te Waenga

Ko te utu mō ngā rauemi mō ngā pūnaha waea-rua he $0.80-1.20 ia putu, ki te whakaritea ki te $1.50-2.50 mō ngā taura coaxial whakamarumaru, taura Ethernet rānei.

Mō tētahi whare noho e 50 ngā wāhanga, ko te rerekētanga tēnei he $2,000-3,500 te penapena taura anake. Ina honoa ki te whakaiti i ngā hāora mahi, ka heke te utu tāutanga katoa mā te 30-40% ki te whakataurite ki ngā huarahi kē atu e hangai ana ki te IP.

Ngā Here me ngā Whakaaroaro

Ngā Here o te Tawhiti me te Kounga Tohu

He iti noa ngā tawhiti o ngā pūnaha waea-rua. Ko te roanga o te taura ka taea te whakawhiti mai i te 100 ki te 150 mita, i runga i te ine waea me ngā whakaritenga o te pūnaha.

I tua atu i ēnei tawhiti, ka pā te hekenga o te tohu ki te kounga ataata me te pono o te pūnaha. E whakarato ana te paerewa TIA-568 i ngā aratohu mō te whiriwhiri taura hei whakaiti i te hekenga o te tawhiti.

Ngā Herenga Whakatau Ataata

Ko ngā here whānui o te hononga i runga i ngā pūnaha waea-rua e whakawhāiti ana i te taumira ataata ki te 480p-720p i te nuinga o ngā whakatinanatanga. Ahakoa he rawaka mō te tautuhi manuhiri taketake, kāore ēnei taumira i te eke ki ngā āheinga 1080p, 4K rānei e tukuna ana e ngā pūnaha IP-e hangai ana.

Ko te mohio kanohi me te hopu pereti nama me whai taumira teitei ake, kāore e taea te whakamahi i te hangarau waea-rua paerewa.

Ngā Wero Tauine me te Whakauru

Ko te whānui atu i ngā tau o ngā waeine kua tohua e te kaihanga me whakakapi he pūnaha, kaua e whakahou ake. He iti tonu te whakaurunga ki te mana urunga tuatoru, ki te CCTV, ki ngā pūnaha whakahaere whare rānei, ki te whakataurite ki ngā huarahi kē atu e hangai ana ki te IP e whakamahi ana i ngā kawa paerewa pēnei i te ONVIF, te SIP rānei.

Whakataurite Hangarau: Ngā Pūnaha Whakawhiti Ataata 2-Waea me IP

Ngā Tikanga Pai mō te Tāutanga mō ngā Waea Ataata 2-Waea

Ngā Whakaritenga Kōwhiringa Waea me te Ine

Kōwhiria he taura takirua miro 18-22 AWG mō ngā tawhiti e rere ana i raro i te 100 mita. Mō ngā tawhiti e tata ana ki te 150 mita, whakamahia te 16 AWG hei whakaiti i te hekenga ngaohiko.

Ka whakaitihia e te taura whakamarumaru te pokanoa hikohiko i roto i ngā taiao he rama hihiko, he taputapu motuka rānei. Kei roto i te tuhinga NEC 725 ngā whakaritenga waehere mō ngā ara iahiko iti-mana Akomanga 2 e whakamahia whānuitia ana i roto i ngā tono waea whakawhitiwhiti.

Ngā Whakaaro mō te Polarity me te Whakamutu

Kia mau tonu te āhua o te polarity puta noa i te tāutanga. Mā te hurihanga o ngā ara iahiko i tētahi wāhi ka ārai i te mahi a te pūnaha.

Whakamahia he taura kua tohua ki te tae (te nuinga he whero/pango, he kikorangi/mā rānei) kia tika ai te tautuhi. Whakamutua ngā hononga mā te whakamahi i ngā hononga kua tohua e te kaihanga, i ngā poraka pito rānei kua tohua mō te ine waea.

Ngā Tātaitanga o te Tuku Hiko me te Hekenga Ngaohiko

Tātaihia te hekenga ngaohiko mā te whakamahi i te tātai:

VD = (2 x L x I x R) / 1000

Kei hea:

• L = te roa o te taura i roto i ngā putu
• I = iahiko i roto i ngā ampere
• R = te ātete waea mō ia 1000 putu

Kia mau tonu te ngaohiko i te teihana ki roto i te 10% o te whakatakotoranga kua whakatauria.

Ngā Pātai Auau

Ka taea e au te whakapai ake i te waea hiko anaro ki te waea-rua me te kore e whakakapi i ngā waea katoa?

Ae, he maha ngā wā ka whakamahia e ngā pūnaha waea-rua ngā waea waea, ngā waea whakawhitiwhiti rānei. Manatokohia te āhua o te taura me te ine i te hototahi i mua i te haere tonu. Ko ngā pūnaha e whakamahi ana i te taura Cat3, i te taura takirua miro rānei i tāutahia i muri i te tau 1990, ka tautoko i te hangarau waea-rua me te kore e hono anō.

E hia te maha mōrahi o ngā teihana e tautokona ana?

Ka rerekē te kaha o te oro i runga i te kaihanga me te hoahoa o te pūnaha. E 8-16 ngā teihana e tautokona ana e ngā pūnaha taumata tīmatanga. E 50-100 ngā waeine ka taea e ngā pūnaha taumata ngaio te whakauru. Ka puta he hapa whakawhitiwhiti kōrero me te heke o te kounga ataata mēnā ka nui haere ngā whakaritenga a te kaihanga.

E tautoko ana ngā pūnaha waea-rua i te hopu ataata?

Kei roto i ētahi pūnaha waea-rua ngā mokamoka kāri SD mō te tuhi ā-rohe i te teihana matua. Me whai wae hononga whatunga ngā pūnaha e hiahiatia ana mō ngā āheinga tuhi kapua. Ka pā te tuhi tonu ki te whānui o te pūnaha, ā, ka whakaiti pea i te kounga ataata wā-tūturu.

Ka taea e ngā waea-rua te whakauru ki ngā raka tatau hiko?

Ko te nuinga o ngā aroturuki ā-roto e rua-waea he putanga whakawhiti mō te mahi tuku tatau. Honoa ngā patu hiko, ngā raka aukume rānei mā te whakamahi i ngā pūtake hiko motuhake te rahi mō te kukume iahiko o te taputapu raka. Manatokohia te hototahitanga o te ngaohiko (te tikanga 12VDC, 24VDC rānei).

Me pēhea taku whakatau i ngā raruraru kounga ataata?

Tirohia te tawhiti tāutanga o te taura. Inehia te ngaohiko i te teihana hei whakaū i te tika o te tuku hiko. Tirohia ngā hononga mō te waikura, te wetewete rānei. Wehea ngā taura intercom mai i ngā waea ngaohiko teitei kia 12 inihi te iti rawa hei ārai i te pokanoa.

Whakamutunga: Te Kōwhiri i te Hangarau Tika

Ka tukuna e ngā pūnaha waea ataata waea-rua ngā otinga whai hua mō ngā whakaurunga whare noho me ngā whakaurunga arumoni iti, ina nui ake te whai huatanga o te utu me te whakaurunga māmā i ngā whakaritenga āhuatanga matatau.

He tino pai te hangarau nei mō te whakahou i ngā tono me ngā taiao me ngā hanganga takirua miro o nāianei. Mā te mārama ki ngā herenga ka taea te whakatau whai whakaaro ina whakatauritea ngā huarahi kē atu e rua-waea ki ngā pūnaha e hangai ana ki te IP.

Kua rite koe ki te whakapai ake i tō pūnaha waea whakawhitiwhiti?Tūhurahia ā mātouNgā otinga whakawhitiwhiti ataata IP waea-rua or whakapā atu ki ā mātou tohungamō tētahi kōrerorero kore utu.