Kodi mukudziwa machitidwe omwe ali mu GNSS?

Malingaliro olakwika 5 okhudza Gnss (Makina Oyendetsera Ma Satellite Padziko Lonse)

❌ GNSS ndi GPS ndi zofanana.

✅ GPS ndi imodzi mwa njira zingapo za GNSS; GNSS ndi mawu ambiri okhudza machitidwe onse apadziko lonse lapansi a satellite.

❌ GNSS ndi yothandiza poyenda pa intaneti yokha.

✅ GNSS ndi yofunika kwambiri pa nthawi yeniyeni yolumikizirana ndi mafoni, mabanki, ma gridi amagetsi ndi zina zambiri.

❌ Mukufunika intaneti kuti mugwiritse ntchito GNSS.

✅ GNSS Wolandilas imagwira ntchito yokhayokha popanda intaneti, pokhapokha ngati pakufunika kukonza kuti deta ikhale yolondola.

❌ Zizindikiro za GNSS zimapezeka kulikonse padziko lapansi, ngakhale pansi pa nthaka, ndipo ndi zamphamvu komanso zosavuta kuzizindikira.

✅ Zizindikiro za GNSS ndi zofooka ndipo zimatha kutsekedwa mosavuta ndi zopinga monga nyumba, ngalande, mitengo, masamba okhuthala, kapena ngakhale mlengalenga.

❌ GNSS singagwiritsidwe ntchito mlengalenga.

✅ GNSS imagwiritsidwa ntchito poyenda ngakhale mu Low Earth Orbit (LEO) ya zombo zamlengalenga ndi ma satellite.

Ma Global Navigation Satellite Systems (GNSS) asintha momwe timayendera komanso momwe timayendera padziko lapansi. Ma system amenewa akhala gawo lofunika kwambiri pa moyo wathu watsiku ndi tsiku, kuyambira kutitsogolera paulendo wapamsewu mpaka kutithandiza kupeza njira yathu panthawi ya zochitika zakunja. Koma kodi ma system amenewa amagwira ntchito bwanji, ndipo ndi ma system ati akuluakulu asanu ndi limodzi a GNSS omwe amayendetsa ukadaulo wathu woyendera?

Kuti mumvetse momwe dongosolo la GNSS limagwirira ntchito, muyenera kumvetsetsa mfundo zoyambira zomwe zili kumbuyo kwake. Machitidwe a GNSS amapereka malo, kuyenda, ndi ntchito zowerengera nthawi kwa ogwiritsa ntchito padziko lonse lapansi pogwiritsa ntchito ma netiweki a satellite. Ma satellite amenewa nthawi zonse amatumiza zizindikiro zomwe zingalandiridwe ndi olandila a GNSS, zomwe zimawalola kuwerengera malo awo enieni padziko lapansi.

Makina asanu ndi limodzi akuluakulu a GNSS ndi GPS ya ku United States (Global Positioning System), GLONASS ya ku Russia (Global Navigation Satellite System), Galileo ya ku European Union, Beidou ya ku China, NavIC ya ku India ndi QZSS (Quasi Zenith Satellite System) yochokera ku Japan. Makina aliwonsewa amagwira ntchito pogwiritsa ntchito mfundo zoyambira zofanana koma ali ndi mawonekedwe ndi luso lapadera.

GPS ndi njira yotchuka kwambiri ya GNSS ndipo ili ndi ma satellite 24 omwe amazungulira dziko lapansi. Zizindikiro zomwe zimatulutsidwa ndi ma satellite awa zimatha kulandiridwa ndi GPS yolandila kuti idziwe komwe wogwiritsa ntchito ali, liwiro lake komanso nthawi yake. GLONASS yopangidwa ku Russia ikutsatira mfundo yofanana koma ili ndi ma satellite 24. Galileo ndi njira ya GNSS ya European Union, yopangidwa kuti ipereke njira zodziyimira payokha komanso zolondola kwambiri zogwiritsira ntchito anthu wamba komanso ankhondo.

Dongosolo la Beidou ku China lili ndi ma satellite 35 omwe ali ndi malo padziko lonse lapansi ndipo lapangidwa kuti lipereke ntchito zoyendera, ulimi ndi chithandizo cha masoka. Dongosolo la NavIC ku India lili ndi ma satellite asanu ndi awiri, omwe cholinga chawo chachikulu ndikupereka ntchito zokhazikika bwino ku India ndi madera ozungulira. Pomaliza, dongosolo la QZSS ku Japan lapangidwa kuti liwongolere kulondola ndi kudalirika kwa GPS m'chigawo cha Asia-Oceania pogwiritsa ntchito ma satellite a geostationary ndi tilt.

Makina asanu ndi limodzi a GNSS amenewa amagwira ntchito potumiza zizindikiro kuchokera ku ma satellite awo kupita ku ma GNSS olandira zinthu pansi. Kenako wolandirayo amagwiritsa ntchito zizindikiro kuchokera ku ma satellite angapo kuti awerengere malo awo enieni kudzera mu njira yotchedwa trilateration. Poyesa nthawi yomwe zizindikiro zimayenda kuchokera ku ma satellite kupita ku wolandirayo, wolandirayo amatha kudziwa mtunda wake kuchokera ku satellite iliyonse ndikuyika malo ake atatu padziko lapansi.

Kuwonjezera pa kupereka ntchito zoika malo ndi kuyenda panyanja, machitidwe a GNSS amakhalanso ndi gawo lofunika kwambiri m'mafakitale osiyanasiyana monga ndege, ulimi, kufufuza malo ndi kulumikizana. Amathandizira kulumikizana kolondola kwa nthawi ya maukonde olumikizirana, amathandizira njira zogwirira ntchito bwino zaulimi kudzera muulimi wolondola, komanso amathandizira kuyenda bwino kwa ndege ndi zombo mosamala komanso molondola.

Mwachidule, makina asanu ndi limodzi akuluakulu a GNSS—GPS, GLONASS, Galileo, Beidou, NavIC, ndi QZSS—asintha momwe timayendera komanso momwe timadziyikira pa Dziko Lapansi. Makinawa amagwira ntchito pogwiritsa ntchito maukonde a satellite kutumiza zizindikiro kwa olandira a GNSS, zomwe zimathandiza ogwiritsa ntchito kudziwa malo awo enieni, liwiro lawo, ndi nthawi yawo. Pamene ukadaulo ukupitirira kupita patsogolo, makina a GNSS adzakhala ndi gawo lofunika kwambiri pakupanga tsogolo la ntchito zoyendera padziko lonse lapansi komanso zoyika malo.