Ngā Rerekētanga i waenga i ngā Kawa Whakawhitiwhiti RS422 me te TTL: Aratohu Kōwhiringa Momo Taiaho Lumispot

I. Ngā Whakamāramatanga Matua: Ngā Rerekētanga Matua i waenganui i ngā Kawa e Rua
● Kawa TTL: He kawa whakawhitiwhiti kōrero kotahi-mutunga e whakamahi ana i te taumata teitei (5V/3.3V) hei tohu "1" me te taumata iti (0V) hei tohu "0", e tuku tika ana i ngā raraunga mā te raina tohu kotahi. Ka taea te whakauru i te kōwae iti 905nm a Lumispot ki te kawa TTL, e tika ana mō te hononga tika ki te taputapu tawhiti-poto.
● Kawa RS422: Ka whakamahi i tētahi hoahoa whakawhitiwhiti kōrero rerekē, ka tuku tohu rerekē mā roto i ngā rārangi tohu e rua (ngā rārangi A/B) me te whakakore i te pokanoa mā te whakamahi i ngā rerekētanga tohu. Ko te waeine tawhiti-roa 1535nm a Lumispot he paerewa me te kawa RS422, i hangaia mō ngā āhuatanga ahumahi tawhiti-roa.
II. Whakataurite Mahi Matua: 4 Ngā Ahu Matua
● Tawhiti Tuku: Ko te tawhiti tuku o te kawa TTL he ≤10 mita te tikanga, he pai mō te whakaurunga tawhiti poto i waenga i ngā kōwae me ngā rorohiko iti maramara-kotahi, ngā PLC rānei. Ka taea e te kawa RS422 te whakatutuki i te tawhiti tuku tae atu ki te 1200 mita, e tutuki ai ngā hiahia tuku raraunga tawhiti-roa o te haumarutanga rohe, te tirotiro ahumahi, me ētahi atu āhuatanga.
● Te Āheinga Ārai-Waewae: Ka ngāwari te kawa TTL ki te wawaotanga hikohiko me te ngaronga taura, ā, he pai mō ngā taiao o roto kāore he wawaotanga. He kaha te āheinga ā-aukati-wawae o te hoahoa tuku rerekētanga o te RS422 ki te ātete i te wawaotanga hikohiko i roto i ngā āhuatanga ahumahi me te whakaiti i te tohu i roto i ngā taiao uaua o waho.
● Tikanga Waea: Ka whakamahia e te TTL he pūnaha waea-toru (VCC, GND, raina tohu) me te waea māmā, e tika ana mō te whakaurunga taputapu iti. Me whai pūnaha waea-toru (A+, A-, B+, B-) te RS422 me te waea paerewa, he mea tino pai mō te whakatinanatanga pumau o te taumata ahumahi.
● Te Kaha Utaina: Ka tautokona anake e te kawa TTL te whakawhitiwhiti kōrero i waenga i te pūrere matua kotahi me te pūrere pononga kotahi. Ka taea e te RS422 te tautoko i te whatunga o te pūrere matua kotahi me ngā pūrere pononga tekau, e urutau ana ki ngā horopaki whakatinanatanga maha-kōwae kua whakaritea.
III. Ngā Painga o ngā Wāhanga Taiaho Lumispot mō te Whakarerekētanga Kawa
Ka tautokohia e ngā raupapa katoa o ngā kōwae ine tawhiti taiaho Lumispot ngā kawa takirua RS422/TTL whiriwhiri:
● Ngā Horopaki Ahumahi (Haumarutanga Rohe, Tirotiro Hiko): E taunakihia ana te waeine kawa RS422. Ina honoa ki ngā taura ārai, ko te tere hapa moka o te tuku raraunga i roto i te 1km he ≤0.01%.
● Ngā Horopaki Kaihoko/Tawhiti-Pōto (Ngā Taraiwa, Ngā Ine Awhe Ringaringa): He pai ake te waeine kawa TTL mō te iti o te whakapaunga hiko me te ngāwari ake o te whakaurunga.
● Tautoko Whakaritenga: Kei te wātea ngā ratonga tahuri me te urutau kawa ritenga i runga i ngā whakaritenga atanga pūrere a ngā kiritaki, e whakakore ana i te hiahia mō ngā kōwae tahuritanga tāpiri me te whakaiti i ngā utu whakauru.
IV. Whakaaro Kōwhiringa: Taurite Whai Hua mā te Hiahia
Ko te kaupapa matua o te kōwhiringa kei roto i ngā hiahia matua e rua: tuatahi, te tawhiti tuku (kōwhiria te TTL mō te ≤10 mita, RS422 mō te ≞10 mita); tuarua, te taiao whakahaere (kōwhiria te TTL mō ngā taiao kore-whakararuraru o roto, RS422 mō ngā tautuhinga ahumahi me waho). Ka whakaratohia e te tīma hangarau a Lumispot he tohutohu urutau kawa kore utu hei āwhina i te whakatutuki i te hononga pai i waenga i ngā kōwae me ngā taputapu i roto i te wā poto.