Technology, GPS
Chochita ngati woyendetsa sitimawona satellites
Amagalimoto ambiri amakumana ndi vuto pamene woyendetsa sitima samapenya satellites. Pali zifukwa zingapo izi: kulephera kwa almanac, kupanga magalasi, mapulogalamu olephera, ndi kulephera kwa kulandira mankhwala.
Kulephera kwa Almanac
Ngati chipangizocho chimasulidwa posachedwapa ndikutsegulidwanso, ndiye kuti kuyambira kotentha kumagwiritsidwa ntchito. Kawirikawiri pamafunika masekondi khumi ndi asanu kufunafuna ma satellites. Pa nthawi yomweyi, zokhudzana ndi almanac ndi maulendo a satellite zimasungidwa mu kukumbukira chipangizocho, chomwe chimakupatsani kubwerera kuntchito kwa kanthawi kochepa. Komanso, woyendetsa sitima safunika kuitanitsa ephemeris.
Chiyambi chachikondi chimaphatikizapo kusintha chipangizo mu maminiti awiri kapena atatu. Deta yokhudza almanac imatulutsidwa kuchokera pamtima wa woyendetsa, ndipo ephemerides amasinthidwa.
Ndizodabwitsa kuti deta ya almanac imataya umoyo wawo kwa miyezi ingapo. Ephemerides "amakhala" mochuluka - maola awiri kapena atatu. Pamene masiku omwe tatchulidwa pamwambawa atha, chidziwitsocho chiyenera kusinthidwa. Pambuyo pake, chipangizocho chimasungidwa mumayendedwe oyamba ozizira ndipo chimagwira ntchito. Komabe, nthawi zina almanac imatayika, woyendetsa sitima sapenya ma satellite mpaka maola angapo. Mu mkhalidwe uno, muyenera kuyika chipangizo pamalo osatsekera ndikuzisiya pamalo awa. Patapita kanthawi, adzabwerera kuntchito yoyenera.
Kupanga galasi lamagalimoto
Mwa njira, woyendetsa sitima samayang'ana satellites pa magalimoto amenewo kumene galasi lopaka ntchito limagwiritsidwa ntchito. Ili ndi mapangidwe apadera omwe amawonetsa chizindikiro. Njira yothetsera vutolo ndiyo kukhazikitsa chipangizo pafupi ndi malo apaderadera kuti apereke zizindikiro pa galasi lamoto.
Kulephera kwasefesi
Ngati simungakwanitse kusintha pulogalamuyi, tengani chipangizo kuntchito komwe akatswiri adzawombera pang'onopang'ono.
Kulephera kwa antenna kulandira
Ichi ndi chifukwa chachikulu chothandizira kusamvana ndi satellites. Mwa njira, oyendetsa sitima amagwiritsa ntchito mitundu iwiri ya ziphuphu - kunja ndi solderable. Kusintha kwa antenna yogulitsidwa ndi okwera mtengo kuposa kunja, koma zipangizo zoterezi zimaphwanyidwa pang'onopang'ono. Bweretsani kokha ndi chipatala cha utumiki.
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