Ungawaqopha kanjani amathrekhi e-GPS ahlanzekile?

Uma uke wayibhekisisa i-GPS yakho, kufanele ukuthi ubonile ukuthi igcwele izilungiselelo zokuyihlela. Ungase futhi umangale uma uqala uzama ukubuka kumephu ithrekhi yokugcina eqoshwe yiwo wonke amaphuzu akhiqizwe "angazinzile".

Okuxakayo, okuyinqaba. Ingabe uthe akujwayelekile?

Hhayi-ke, lokho akuyona yonke into eyinqaba, kodwa kungazelelwe kusho okuningi mayelana nekhono le-GPS lokukhiqiza kabusha iqiniso ngokunembile.

Eqinisweni, nge-GPS, esivumela ukuthi sihlele imvamisa yokungena kwedatha, sizoba nomuzwa wokukhetha isampula esheshayo. Sizitshela ukuthi: amaphuzu amaningi, angcono!

Kodwa ingabe kuyisinqumo esihle ngempela ukuthola umzila oseduze neqiniso ngangokunokwenzeka? 🤔

Ake sibhekisise, kuwubuchwepheshe obuncane (akukho okubalulekile, ungakhathazeki ...), futhi sizoba nawe.

Umthelela womkhawulo wephutha

Emhlabeni wedijithali, umqondo wokulinganisa uhlala unomthelela ongacacile kakhulu noma omncane.

Okuxakayo ukuthi lokho okungase kubonakale kuyisinqumo esingcono, okungukuthi ukusebenzisa izinga eliphezulu lokuqoshwa kwamaphoyinti ethrekhi, kungase kube okuphambene.

Incazelo: I-FIX ikhono le-GPS lokubala indawo (i-latitude, i-longitude, ukuphakama) ukusuka kumasathelayithi.

[Ithumela Ngaphesheya kwe-Atlantic Ngemva Komkhankaso Wokukala] (https://www.tandfonline.com/doi/pdf/10.1080/13658816.2015.1086924) ithi ngaphansi kwezimo ezivumayo zokwamukela i-azure blue. isibhakabhaka 🌞 kanye ne-GPS ibekwe endaweni yokubuka engu-360 °, ** UKULUNGISA ukunemba kungu-3,35 m 95% wesikhathi, **

⚠️ Ngokukhethekile, ngama-FIX ayi-100 alandelanayo, i-GPS yakho ikubeka phakathi kuka-0 no-3,35m endaweni yakho yangempela izikhathi ezingu-95 nezingu-5 ngaphandle.

Ngokuqondile, iphutha libhekwa njengeliphindwe izikhathi ezingu-1,5 kunephutha elivundlile, ngakho-ke, ezimweni ezingu-95 kwezingu-100, ukuphakama okurekhodiwe kuzoba +/- 5 m ukusuka ekuphakameni kwangempela ngaphansi kwezimo zokwamukelwa kahle, okuvame ukuba nzima eduze. umhlabathi.

Ngaphezu kwalokho, ukushicilelwa okuhlukahlukene okutholakalayo kubonisa ukuthi ukwamukela okuvela kumaqoqo ezinkanyezi amaningi 🛰 (GPS + GLONASS + Galileo) akuthuthukisi ukunemba kwe-GPS evundlile.

Ngakolunye uhlangothi, isamukeli se-GPS esikwazi ukuhumusha isignali yezinkanyezi ezimbalwa zamasathelayithi sizoba nokuthuthuka okulandelayo:

1. Ukunciphisa ubude besikhathi se-FIX yokuqala, ngoba uma ama-satellites engeziwe, umamukeli wawo uzoba mkhulu uma seyethuliwe,
2. ukuthuthukisa ukunemba kokubeka ezimweni ezinzima zokwamukela. Kunjalo edolobheni (imihosha yasemadolobheni), phansi kwesigodi ezindaweni zezintaba noma ehlathini.

Ungayizama nge-GPS yakho: umphumela ucacile futhi uphelile.

I-chip ye-GPS isetha okuthi FIX njalo ngesekhondi yonke.

Cishe zonke izinhlelo ze-GPS zamabhayisikili noma zangaphandle zivumela lezi FIX ukuthi zilandelele (GPX) amanani okurekhoda. Kuphakathi kokuthi zonke zirekhodiwe, ukukhetha isikhathi esingu-1 ngomzuzwana, noma i-GPS ithatha u-1 we-N (isibonelo, njalo ngemizuzwana emi-3), noma ukushuna kwenziwa kude.

I-FIX ngayinye iwukuba inqume indawo (i-latitude, i-longitude, ukuphakama, isivinini); ibanga eliphakathi kwama-FIX amabili litholakala ngokubala i-arc yesiyingi (etholakala kusiyingi somhlaba 🌎) esidlula kuma-FIX amabili alandelanayo. Isamba sebanga lokugijima yisamba salezi zikhawu zebanga.

Ngokuyisisekelo, yonke i-GPS yenza lesi sibalo ukuze ithole ibanga elihanjiwe ngaphandle kokucabangela ukuphakama, bese ihlanganisa ukulungiswa ku-akhawunti yokuphakama. Isibalo esifanayo senzelwe ukuphakama.

Ngakho: uma i-FIX iqhubeka, irekhodi lilandela indlela yangempela, kodwa lapho ingxenye yephutha lendawo evundlile neqondile izohlanganiswa.

Umfanekiso: kokuluhlaza kuyindlela yangempela emugqeni oqondile wokwenza ukucabanga kube lula, ngokubomvu i-GPS FIX ku-1 Hz enesimo sokungaqiniseki esibonakala eduze kwe-FIX ngayinye: indawo yangempela ihlale ikulesi sigungu, kodwa ayigxilile. , futhi okuluhlaza okwesibhakabhaka ukuhunyushwa ku-GPX uma kwenziwa njalo ngemizuzwana emi-3. Okuphephuli kubonisa iphutha lokuphakama njengoba kukalwa nge-GPS ([bona lesi sifundo ukuze usilungise] (/blog/altitude-gps-strava-inaccurate).

Ukungaqiniseki kwesikhundla kungaphansi kwama-4 m 95% wesikhathi ngaphansi kwezimo ezifanele zokwamukela. Okushiwo kuqala ukuthi phakathi kwama-FIX amabili alandelanayo, uma i-offset ingaphansi kokungaqiniseki kwesikhundla, i-offset erekhodwe yileyo FIX iqukethe ingxenye enkulu yalokho kungaqiniseki: umsindo wokulinganisa.

Isibonelo, ngesivinini esingu-20 km / h, uhamba ngamamitha angu-5,5 njalo ngomzuzwana; nakuba yonke into iphelele, i-GPS yakho ingakwazi ukukala i-offset engu-5,5m +/- Xm, inani le-X lizoba phakathi kuka-0 no-4m (ngokungaqiniseki kwendawo engu-4m), ngakho izobeka le FIX entsha endaweni ephakathi kuka-1,5m no-9,5m. 70 m ukusuka kwedlule. Esimeni esibi kakhulu, iphutha ekubaleni lesi sampula sebanga elihanjiwe lingafinyelela ku-+/- XNUMX%, kuyilapho isigaba sokusebenza se-GPS sihle kakhulu!

Cishe usuqaphele kakade ukuthi ngesivinini esingaguquki ethafeni futhi esimweni sezulu esihle, amaphuzu ethrekhi yakho awahlukanisiwe ngokulinganayo: ijubane eliphansi, yilapho ehlukana kakhulu. Ngebanga lika-100 km/h umthelela wephutha uyancipha ngo-60%, kanti nge-4 km/h ijubane lomuntu ohamba ngezinyawo lifinyelela ku-400%, kwanele ukubuka ithrekhi ye-GPX yomvakashi, ubone ukuthi ihlezi njalo. kakhulu "eyinkimbinkimbi".

Ngenxa yalokho :

• izinga lokurekhoda liphezulu,
• futhi ijubane liyancipha,
• kulapho ibanga nobude bokulungisa ngakunye kuzoba nephutha.

Ngokuqopha wonke ama-CORRECTIONS kuGPX yakho, lingakapheli ihora noma amarekhodi angu-3600 usuqoqe iphutha eliphindwe ka-3600 kunephutha le-GPS elivundlile neliqondile, isibonelo, ngokwehlisa i-frequency izikhathi ezi-3. kube izikhathi ezingaphezu kuka-1200.

👉 Elinye iphuzu: ukunemba kwe-GPS eqondile akuphakeme, imvamisa yokurekhoda ephezulu kakhulu izokwandisa leli gebe 😬.

Njengoba isivinini sikhula, kancane kancane ibanga elihanjiwe phakathi kwe-FIX emibili elandelanayo liba livelele maqondana nokungaqiniseki kwendawo. Amabanga anqwabelene nobude phakathi kwawo wonke ama-FIX alandelanayo arekhodwe kuthrekhi yakho, okungukuthi, ingqikithi yebanga kanye nephrofayela eqondile yaleso sifundo, kuzoncipha kancane kancane ukuthintwa ukungaqiniseki kwendawo.

Ingamelana kanjani nale miphumela engadingeki?

Ake siqale ngokuchaza amakilasi esivinini sokuhamba:

1. 🚶🚶‍♀ Ukuhamba ngezinyawo kweqembu, isivinini esijwayelekile siphansi, cishe ngu-3-4 km / h noma 1 m / s.
2. 🚶 Kumodi yokuhamba yezemidlalo, isigaba sesivinini esimaphakathi si-5 ukuya ku-7 km / h, okungukuthi, cishe 2 m / s.
3. 🏃 Kumamodi Womzila noma Wokugijima, isigaba sesivinini esivamile siphakathi kuka-7 no-15 km / h, okusho ukuthi cishe u-3 m / s.
4. 🚵 Ngebhayisikili lezintaba, singathatha isivinini esimaphakathi esingu-12 ukuya ku-20 km/h, noma cishe u-4 m/s.
5. 🚲 Uma ushayela emgwaqeni, ijubane liphezulu ukusuka ku-5 kuye ku-12 m/s.

ukuthi ukuhamba ngezinyawo ngakho-ke, kuyadingeka ukwabela ukuqoshwa ngokunyuka kwe-10 kuya ku-15 m, iphutha lokunganembile kwe-GPS lizocatshangelwa kuphela izikhathi ezingama-300 ngehora (cishe) esikhundleni sika-3600, kanye nomphumela wephutha lesikhundla, elikhuphuka lisuka ku- ubuningi obungamamitha ama-4 ngemitha elilodwa kuye ku-1 m nge-4 m, buzoncishiswa izikhathi eziyi-15. Ithrekhi izoba bushelelezi kakhulu futhi ihlanzeke, futhi umsindo wokulinganisa uyacatshangelwa. ihlukaniswe yi-factor 16! Ithiphu njalo nge-200-10 m ngeke isuse ukubuyiselwa kwezikhonkwane emigqeni, izovele ihlukaniswe kancane futhi ibe nomsindo omncane.

ukuthi izindlela Uma kucatshangwa ukuthi isivinini esimaphakathi esingu-11 km/h, ukuqopha ngesinyathelo sesikhathi esishintshayo sisuka ku-1 njalo ngomzuzwana siye ko-1 njalo ngemizuzwana emi-5 kunciphisa inani lokuqoshwa lisuka ku-3600 liye ku-720 ngehora, futhi iphutha elikhulu (elingenzeka) lingama-4 m njalo nge-3. m. Iba ngu-4 m njalo nge-15 m (okungukuthi ukusuka ku-130% ukuya ku-25%)! Ukubalwa kwephutha ngokulandelelwa okurekhodiwe kwehliswa cishe izikhathi ezingama-25. Okuwukuphela kwe-drawback ukuthi izindlela ezisengozini yokugoba kanzima zihlukaniswe kancane. « Ingozi "**, ngoba nakuba lokhu kuwumzila, isivinini kumajika nakanjani sizokwehla, ngakho-ke i-FIX emibili elandelanayo izosondela, okuzokwenza buthaka umphumela wokuhlukanisa.

ukuhamba ngebhayisikili entabeni isendaweni lapho kuhlangana khona isivinini esiphansi (<20 km/h) kanye nesivinini esimaphakathi (> 20 km/h), endabeni yethrekhi enephrofayili enensayo ukuya ku-(<15 km/h) enensa kakhulu – imvamisa ngu-5 s. kuwukuyekethisa okuhle (okuhlanganisa ne-Trail), uma kuwuhlobo lwephrofayela ye-XC (>15 km/h), ukugcina u-3 kubonakala kuwukuyekethisa okuhle. Ngephrofayili yokusebenzisa isivinini esiphezulu (DH), khetha isekhondi elilodwa noma amabili njengejubane lokubhala.

Ngesivinini esingu-15 km/h, ukukhetha imvamisa yokurekhoda ithrekhi kusuka ku-1 kuye ku-3 s kunciphisa ukubalwa kwephutha le-GPS izikhathi ezingaba ngu-10. Njengoba, ngokuyisisekelo, i-radius ephendukayo ihlobene nesivinini, ukubuyiswa okunembile kwe-trajectory kuma-hairpins amancane noma ukujika ngeke kube sengozini.

isiphetho

Izinguqulo zakamuva ze-GPS ezitholakalayo zemisebenzi yangaphandle kanye nokuhamba ngebhayisikili zinikeza ukunemba kwendawo okubonwe ocwaningweni olucashunwe ekuqaleni kwesihloko.

Ngokwandisa izinga lokuqopha libe yisilinganiso sakho sesivinini sokushayela, uzolinciphisa kakhulu iphutha lebanga nobude bethrekhi yakho ye-GPX: ithrekhi yakho izoba bushelelezi, futhi izobambelela kahle kumathrekhi.

Lo mbukiso usekelwe ezimeni ezifanele zokwamukela lapho lezi zimo zokwamukela ziwohloka 🌧 (amafu, umbhede, isigodi, idolobha). Ukungaqiniseki kwendawo kukhula ngokushesha, futhi imiphumela engafuneki yezinga eliphezulu le-FIX lokurekhoda ngesivinini esiphansi izokhuliswa.

Isithombe esingenhla sibonisa i-bayonet edlula endaweni evulekile ngaphandle kwe-mask ukuze ibone kuphela umphumela we-FIX yokudlulisa imvamisa kufayela le-GPX.

Lawa amathrekhi amane aqoshwe ngesikhathi sokuqeqeshwa komkhondo (ogijimayo) ngesivinini esingu-10 km/h. Akhethwe ngokungahleliwe unyaka wonke. Amarekhodi amathathu (amathrekhi) alayishwa ngu-FIX njalo ngemizuzwana emi-3 kanye ne-FIX eyodwa njalo ngemizuzwana emi-5.

Ukubhekwa kokuqala: ukubuyiswa kwe-trajectory ngesikhathi sokuhamba kwe-bayonet akuwohloki, okwakufanele kuboniswe. Ukubhekwa kwesibili: konke ukuchezuka kwezinhlangothi "okuncane" okuphawuliwe kukhona ezindleleni "ezikhethiwe" ngemva kwemizuzwana emi-3. Ukuqaphela okufanayo kuyatholakala uma kuqhathaniswa imikhondo erekhodwe kumafrikhwensi ka-1 s no-5 s (kulobu bubanzi bejubane), ithrekhi ehlelwe nge-FIX ihlukaniswe imizuzwana emi-5 (kulobu bubanzi bejubane) ihlanzekile, ibanga eliphelele nokuphakama kuzoba eduze nenani langempela.

Ngakho-ke, ngebhayisikili lezintaba, izinga lokuqopha le-GPS lizosethwa phakathi kuka-2 s (DH) no-5 s (ukugibela).

📸 ASO / Aurélien VIALATTE - Cristian Casal / TWS