Nzira yekuwana sei ultra-fast GPS positioning?

Munzanga yekukurumidza, nekukasika, nekukasika mukati meawa, hyperconnectivity homo sapiens imhuka ine moyo murefu.

Uye homo sapiens VTTstitis haanyari kubva pamurairo paanobatidza GPS yake.

Kangani pawakataura iwe pachako, "Zvinotora zvachose kuti GPS yangu iwane chinzvimbo chekutanga ..."? 😉

Muchokwadi, hauna kutadza zvachose, asi usati wadzosera GPS yako kumugadziri, tinotsanangura kuti inoshanda sei uye nei zvakanaka kazhinji.

Wana geolocation

Iyo GPS inogamuchira yakagadzirirwa kugamuchira chiratidzo chisina kusimba kubva kune geolocation satellite 🛰.

Ichi chiratidzo chinonyudzwa nemagetsi emagetsi ruzha (<25 nanovolts kana 25 ppb).

Zvakangofanana nekuedza kuterera kuti pini iwire pamatairi emukicheni uchishanyira Vatican ⛪️.

Kuti ubvise chiratidzo chinobatsira panzvimbo, zvemagetsi zveGPS-yakabatanidzwa inogamuchira inofanirwa kuburitsa "siginicha" yesetiraiti yega yega yainotarisira kugamuchira, uye "inoisa" kopi iyi muruzha kudzamara yabatana neyakagamuchirwa siginicha. kubva kumasatellite aya. Semutemo, kiyi inofanirwa kupinda mukiyi 🔑 ..

⚠ ️ Zviripachena, chero chinhu chinogona kukanganisa kutaridzika kwedenga chinozokanganisa nekukasira kutorwa kweFIX, nekuti chiratidzo chinogamuchirwa kubva kumasatelliti chinozodzikiswa kusvika padanho rakaderera kana kutoderedzwa.

Mukushanda kwakajairwa, kana FIX yaiswa, inogamuchira (chipset) 📡 inopa kune yega yega nzira yekugamuchira imwe yemasatelliti ayo afunga "kudzingirira". Ipapo chiteshi chega chega chinovharirwa kune satellite kana chiratidzo chikagamuchirwa nemazvo.

Unoda angangoita mana setiraiti uye saka vhara 4 chiteshi che 4D / 3D (L, G, Z) / Speed ​​​​kumisikidza.

Zvimwe zviteshi zvinovandudza kurongeka kwenzvimbo uye ive nechokwadi chekuenderera mberi kwekutevera kweanosvika mana satellite.

Parizvino machipset akati wandei ane akawanda-bhendi GNSS kugona (GPS + Galliléo + Glonass +…). Mazhinji ma chipsets anowanikwa pamusika anongogamuchira iyo GPS chiratidzo bhendi, zvisinei pane yakajairika frequency inoshandiswa Galileo, Glonass nevamwe. Izvi zvinobvumira mugamuchiri kushandisa masetellite emapoka enyeredzi Glonass, Galileo, zvichingodaro, pamwe nemasatellite eboka renyeredzi reGPS (yekutanga kuoneka geolocation).

Saka: kana GPS yako "inomuka" (pa), inofanirwa kutsvaga uye kuteedzera angangoita mana satellite kuitira kuti iverenge yayo yekutanga FIX.

Chenjerera "kumisikidzwa" kuenzanisa ne smartphone inogara iripo uye nekusingaperi geolocated mumamiriro ekushandiswa ikozvino (kunze kwekunge mushandisi atarisa bhokisi rekubuda).

GPS chip kutanga uye yekubatanidza protocol

Ku "kubatanidza" kumasetelliti, GPS inogamuchira inofanira:

• Iva neakanyanya kujeka 360-degree maonero edenga kuti ave nechokwadi chekuonekwa kwemasatelliti akadzikira pamusoro pehusiku uye nemhando yechiratidzo chakagamuchirwa,

• tarisa kuti ndeapi masatellite ari mumunda wekuona, kureva:

  • Ziva zuva nenguva
  • Ziva paumire
  • Ziva pamire masatelliti ari mudenga.

Zuva nenguva zvinochengetwa newachi yemukati ⏰. Izvi zvinoshanda kunyangwe iyo GPS inogamuchira yakadzimwa.

Nzvimbo yeGPS inogamuchira ndiyo yekupedzisira inozivikanwa chinzvimbo.

Almanac uye GPS Ephemeris

Nzvimbo yesetiraiti yega yega mudenga inotariswa nedata kubvaalmanac nokuda kweboka rose renyeredzi uyeephemeral kune yakadzama data yesetiraiti yega yega.

Almanac data

Almanac data inopa ruzivo rwese rwunodiwa kune GPS inogamuchira kuverenga inofungidzirwa nzvimbo yesetiraiti yega yega muboka renyeredzi. Almanac data haina kukwana kuti itarise nzvimbo, inoyeukwa neanogamuchira, kwaanogara achishanda kwemazuva zana nemakumi masere. Iwo anoshandiswa kuona kuti ndeapi ma satellite anoonekwa kubva panzvimbo inozivikanwa kuitira kuti anogamuchira anogona kutsvaga chiratidzo kubva kune iwo ma satellite.

Ephemeris data

Ephemeris data inokubvumira kunyatsoona nzvimbo yesetiraiti yega yega, uye zvakare inobvumidza iwe kuti utore kunonoka kwekuparadzira kwechiratidzo, kumhanya kweiyo satellite, kuitira kunyatso kuenzanisa chinzvimbo cheanogamuchira.

Ephemeris data kubva kusetiraiti inotepfenyurwa chete nesetiraiti iyi uye inovandudzwa nguva nenguva (maawa mana-4 ega ega kuhurongwa hweGPS) kuti ifunge nezvekuchinja kudiki kwesetiraiti inotenderera. Ndiyo data iyi inoshandiswa kuverenga nzvimbo.

YAKASIMBISWA

Iyi data inofambiswa nemasatelliti ari pasi kwazvo kumhanya, iyo almanac inovandudzwa yega yega 12.5 maminetsi, uye ephemeris inovandudzwa maawa mana ega ega..

• Iyo almanac inofanirwa kutanga,
• Iwo ephemeris ega ega setiraiti akateedzerwa akakosha pakuverenga nzvimbo chaiyo.

Kuti ukunde nguva refu yeFIX, machipset eGPS akagadziridzwa neA-GPS "Assisted GPS" ficha, iyo inobvumira almanac uye ephemeris data kutumirwa pamusoro peInternet connection (zvimwe pane izvozvo gare gare).

KUDZIDZA kunotanga ndipo kana data iri risipo, rashatiswa, kana kusakara.

Mienzaniso:

• Kutanga-kutanga-mushure mekusununguka, mushure mekubatidzwa mukati (chivako, pasi, garaji, nezvimwewo),
• kugara kwenguva refu mubhokisi usingashandisi kana pasina bhatiri,
• rwendo rurefu kupfuura 100 km kubva panzvimbo pamberi peGPS, isati yadzima,
• kudzokororwa kwekushandisa kupfupi kunodzivirira ephemeris updates, eg… .etc.

Kusiyana neFACTORY yekutanga apo pasina data, nguva yakawanda iyo inogamuchira haigoni kuziva kuti data yaro haina kururama, script yekutanga yeCOLD inongoitwa mushure mekukundikana. iyo yakazara nguva yeFIX yekutanga mune iyi kesi yakareba kupfuura iyo fekitori yakatarwa.

Nguva Yekutanga Kugadzirisa

Yakakamurwa kuita zviitiko zvitatu:

1. Kutonhora kana fekitari

Izvi ndizvo zvinoitika kana mugamuchiri aine fungidziro isina kujeka:

• Kubva pachinzvimbo chake,
• kumhanya,
• zuva nenguva,
• nzvimbo yemasatellite.

Muchiitiko ichi, anogamuchira anofanira kutanga kutsvaga ese anogona satellite (31). Mushure mekugamuchira chiratidzo kubva kune satellite, mugamuchiri anotanga kugamuchira ruzivo kubva kune almanac. Iyi almanac inofambiswa nesetiraiti yega yega kwemaminetsi gumi nemaviri.

2. Kudziya kana kwakajairika

Muchiitiko ichi, mubatsiri anoziva:

• Yazvino zuva uye nguva nekurongeka kwemasekonzi makumi maviri,
• nzvimbo yayo yazvino nekurongeka kuri nani kupfuura makiromita zana,
• kumhanya kwayo kuri nani kupfuura 25 m / s.

Uye iye anogamuchira ane inoshanda almanac data.

3. Kupisa kana kumira

Kana iye anogamuchira aine nguva yakakodzera, nzvimbo, almanac, uye ephemeris data, inogona kukurumidza kuwana masaini esatellite.

Kunyanya, iyi ndiyo mamiriro ezvinhu apo maviri akabatidzwa nenguva isingasviki awa.

A-GPS kesi: GPS Inobatsirwa (A-GPS)

Iri basa rinokutendera iwe kurodha almanac uye ephemeris data kune GPS inogamuchira chipset. Iye anogamuchira anofanirwa kuve nekumhanyisa network yekubatanidza kuInternet (kuburikidza neWi-Fi kana Bluetooth) kuti agamuchire iyi data kubva kune server (semuenzaniso Garmin). Ichi chimiro chinobvisa kudiwa kwenguva refu FIX nguva.

Chaizvoizvo, ese mafoni 📱 ane A-GPS, saka haakonzererwe nekureba COLD inotanga.

Garmin ine A-GPS inoshandiswa mumidziyo ichangoburwa (GPS, wachi, nezvimwewo), zvisinei Garmin anokurudzira kuti uvandudze iyo data nguva nenguva kuburikidza neinternet yenguva dzose.

Naizvozvo, zvakakosha kuti utarise mune yega yega mushandisi bhuku 📖 kuti uzive nezve chaiyo nyaya yeGPS yako.

Kurudziro yekutanga kutonhora kutanga

• Kana GPS yako yekufamba ine A-GPS: Kana nguva yekutanga CORRECTION ichiita seyakarebesa kwauri, ipa reflex yeInternet yekubatanidza data iyi.

• Kana GPS yako inofamba isina A-GPS uye nguva yeFIX yekutanga inodarika maminetsi matatu:

  • Isa iyo GPS mufambisi munzvimbo iyo "inoona" denga uye, kana zvichibvira, kupfuura 360 °,
  • rega GPS iite FIX yayo isina kubata chero chinhu, kunyanya isina kumira!
  • Kana iyo FIX yaitwa, isiye ichiripo kweinenge awa pasina kubata chero chinhu kuzorodza iyo data inotepfenyurwa nemasatelliti nekumhanya kwakaderera.
  • Mushure meawa ino yekushanda, GPS yako inogona kudzimwa uye nguva yeFIXES inotevera ichave ipfupi.

Muenzaniso webasa rakacherechedzwa neGPS: ikozvino chinzvimbo chakarurama kubva pa3 kusvika ku5 m,

Chiito kana nyika	Время	Ongorora faira relogi
Dzvanya uye sunungura bhatani re ON.	0 "
Iyo skrini inovhenekera neyakarodha skrini "Soft Version"	20 "	GPS inosanganisirwa
Mepu inoratidzwa pachiratidziri	40 "
1 satellite	1'10
Satellite 4	1'25	GPS zvakanaka
Nzvimbo inoratidzwa pamepu	1'40

📸 ESA