I-GPS eqinisekisiwe, i-A-GPS, i-AGPS

I-GPS ne-A-GPS Sebenza Kanye Ukunikezela Ulwazi Lwasekhaya Lwashesha futhi olunembile

I-GPS eqinisekisiwe, eyaziwa nangokuthi i-A-GPS noma i-AGPS, yenza ngcono ukusebenza kwe-GPS evamile kuma-Smartphones nakwamanye amadivayisi eselula axhunywe kwinethiwekhi yeselula. I-GPS esusiziwe ithuthukisa ukusebenza kwendawo ngezindlela ezimbili:

• I-A-GPS isiza ifoni ukuthola ngokushesha " Isikhathi sokuqala ," (i-TTFF) ethuthukisa kakhulu ukusebenza kokuqalisa. I-Assisted GPS ithola futhi igcine imininingwane mayelana nendawo yama-satellites usebenzisa inethiwekhi yeselula ukuze ulwazi lungadingi ukulayishwa nge-satellite.
• Usizo lwe-GPS lubeka ifoni noma idivayisi yeselula lapho izimpawu ze-GPS zibuthakathaka noma zingatholakali. Izimpawu zesitembu se-GPS zinganqatshwa yizakhiwo ezide, futhi azingena ngaphakathi ezakhiweni zangaphakathi kahle. I-GPS esebenzayo isebenzisa ukusondela kumibhoshongo yeselula ukubala isikhundla lapho izimpawu ze-GPS zingatholakali.

Yeka ukuthi i-GPS neGasi elisebenzayo lisebenza kanjani ndawonye

Isistimu ye- GPS idinga ukwenza uxhumano lwe-satellite futhi ithole i-orbit nedatha yewashi ngaphambi kokuthi ikwazi indawo yayo. Lesi yisikhathi sokuQala kuqala. Inqubo ingathatha kusukela kumasekhondi angu-30 kuya emaminithini ambalwa ngaphambi kokuthi idivayisi yakho ithole isignali-ncamashi ukuthi kuncike kangakanani ukuzungezile kanye nenani lokuphazanyiswa. Izindawo ezivulekile zilula ukuthola isignali kunedolobha enezakhiwo ezide.

Uma idivayisi yakho isebenzisa i-GPS esisiziwe, isikhathi sokubonisa ukutholakala siyashesha kakhulu. Ifoni yakho idonsa ulwazi mayelana nendawo yama-satellites ukusuka kumbhoshongo weselula oseduzane, osindisa isikhathi. Ngenxa yalokho, wena:

• Thola ukuthengwa kwesignali ngokushesha
• Londoloza impilo yebhethri
• Thola ulwazi lwendawo ngisho nalapho i-GPS ingakwazi ukuthola isignali

Ngokwakho, ukusiza i-GPS ayimiseli idivaysi yeselula eduze ne-GPS, kodwa isebenze ndawonye, ​​lezi zibophezelo ezimbili kuzo zonke izisekelo. Wonke amafoni anamuhla anesipiliyoni se-A-GPS kuwo, kodwa akuwona wonke amafoni ayisebenzisa. Uma ufuna i-smartphone entsha, buza ukuthi ine-GPS egcwele, ekwazi ukusiza ekwazi ukutholakala. Lokhu kungcono ukulungiselelwa kubasebenzisi, yize kuphela amafoni athile asekela. Amanye amafoni anganikeza i-A-GPS kuphela noma i-GPS engasizwa ukuthi ayitholakali kubasebenzisi nhlobo.