{"id":22260,"date":"2023-03-10T19:21:21","date_gmt":"2023-03-10T18:21:21","guid":{"rendered":"https:\/\/autoklastr.cz\/cs\/?p=22260"},"modified":"2023-03-15T22:19:20","modified_gmt":"2023-03-15T21:19:20","slug":"spojeni-technologii-by-mohlo-posunout-gps-ve-vozidlech","status":"publish","type":"post","link":"https:\/\/autoklastr.cz\/en\/spojeni-technologii-by-mohlo-posunout-gps-ve-vozidlech\/","title":{"rendered":"Spojen\u00ed technologi\u00ed by mohlo posunout GPS ve vozidlech"},"content":{"rendered":"<p style=\"text-align: justify;\"><strong>Technologie glob\u00e1ln\u00edho polohov\u00e9ho syst\u00e9mu (GPS) zp\u016fsobila revoluci v ur\u010dov\u00e1n\u00ed polohy objekt\u016f a v navigaci. Trh s glob\u00e1ln\u00edmi dru\u017eicov\u00fdmi naviga\u010dn\u00edmi syst\u00e9my (GNSS) m\u011bl v roce 2021 hodnotu 198,9 miliardy eur (212,68 USD) a podle progn\u00f3z se do roku 2031 pravd\u011bpodobn\u011b zv\u00fd\u0161\u00ed na 492,2 miliardy eur, uv\u00e1d\u00ed <em>Statista<\/em>. S v\u00fdvojem technologi\u00ed GPS a GNSS se v\u0161ak odhaluj\u00ed n\u011bkter\u00e1 omezen\u00ed.<\/strong><\/p>\n<p style=\"text-align: justify;\">V\u00edcecestn\u00e1 navigace a navigace podle mrtv\u00e9 dr\u00e1hy mohou pro GPS v automobilov\u00fdch aplikac\u00edch p\u0159edstavovat zna\u010dnou v\u00fdzvu. Pro \u0159e\u0161en\u00ed t\u011bchto probl\u00e9m\u016f vytvo\u0159ila spole\u010dnost <em>Metis Engineering<\/em> inovativn\u00ed \u0159e\u0161en\u00ed pro zv\u00fd\u0161en\u00ed p\u0159esnosti a spolehlivosti GPS.<\/p>\n<h3 style=\"text-align: justify;\">P\u0159esnost<\/h3>\n<p style=\"text-align: justify;\">V\u00edcecestn\u00fd sign\u00e1l ozna\u010duje jev, kdy se sign\u00e1ly GPS odr\u00e1\u017eej\u00ed od povrch\u016f, jako jsou budovy nebo ter\u00e9n, a vytv\u00e1\u0159ej\u00ed na p\u0159ij\u00edma\u010di v\u00edcen\u00e1sobn\u00e9 sign\u00e1ly. Tyto v\u00edcen\u00e1sobn\u00e9 sign\u00e1ly se mohou navz\u00e1jem ru\u0161it, co\u017e zp\u016fsobuje nep\u0159esnosti v m\u011b\u0159en\u00ed polohy a rychlosti. Evropsk\u00e1 kosmick\u00e1 agentura uv\u00e1d\u00ed, \u017ee v\u00edcecestn\u00e9 sign\u00e1ly mohou v m\u011bstsk\u00fdch oblastech zp\u016fsobit chybu ur\u010den\u00ed polohy GPS a\u017e o deset metr\u016f.<\/p>\n<p style=\"text-align: justify;\">Navigace podle mrtv\u00e9ho bodu, metoda pou\u017e\u00edvan\u00e1 k odhadu polohy na z\u00e1klad\u011b zn\u00e1m\u00e9 rychlosti a sm\u011bru pohybu, je tak\u00e9 n\u00e1chyln\u00e1 k chyb\u00e1m &#8211; zejm\u00e9na p\u0159i rychl\u00fdch zm\u011bn\u00e1ch rychlosti a sm\u011bru. V automobilov\u00e9m pr\u016fmyslu navigace podle mrtv\u00e9ho bodu udr\u017euje polohu vozidla v p\u0159\u00edpad\u011b do\u010dasn\u00e9 ztr\u00e1ty sign\u00e1lu GPS, nap\u0159\u00edklad p\u0159i pr\u016fjezdu tunelem. P\u0159esnost navigace podle mrtv\u00e9ho bodu se m\u016f\u017ee li\u0161it v z\u00e1vislosti na kvalit\u011b sn\u00edma\u010d\u016f pou\u017e\u00edvan\u00fdch k m\u011b\u0159en\u00ed rychlosti a sm\u011bru.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/media.automotiveworld.com\/app\/uploads\/2023\/03\/09134226\/Metis-Engineering_Untethered-Dead-Reckoning-Sensor_2-scaled.jpg\" \/><\/p>\n<p style=\"text-align: center;\"><em>Senzor Dead Reckoning spole\u010dnosti Metis se sna\u017e\u00ed tyto b\u011b\u017en\u00e9 probl\u00e9my vy\u0159e\u0161it<\/em><\/p>\n<p style=\"text-align: justify;\">Pro syst\u00e9m <em>Metis<\/em> je \u0159e\u0161en\u00edm slou\u010den\u00ed dvou datov\u00fdch sektor\u016f, kter\u00e9 poskytuj\u00ed optim\u00e1ln\u00ed \u0159e\u0161en\u00ed polohy: data GPS a data inerci\u00e1ln\u00edho senzoru. &#8220;Pokud jsou data GPS kombinov\u00e1na s inerci\u00e1ln\u00edm senzorem a GPS si najednou mysl\u00ed, \u017ee vozidlo je 20 m daleko, ale senzor se nepohnul, m\u016f\u017ee \u0159idi\u010d potvrdit skute\u010dnou polohu vozidla,&#8221; \u0159\u00edk\u00e1 Joe Holdworth, v\u00fdkonn\u00fd \u0159editel spole\u010dnosti <em>Metis<\/em>. Podle pr\u016fmyslov\u00fdch v\u00fdzkumn\u00edk\u016f <em>GIS Geography<\/em> m\u016f\u017ee dob\u0159e navr\u017een\u00fd p\u0159ij\u00edma\u010d GPS dos\u00e1hnout horizont\u00e1ln\u00ed p\u0159esnosti t\u0159i metry nebo lep\u0161\u00ed. V p\u0159\u00edpad\u011b vertik\u00e1ln\u00ed p\u0159esnosti m\u016f\u017ee v 95 % p\u0159\u00edpad\u016f dos\u00e1hnout p\u0159esnosti p\u011bt metr\u016f nebo lep\u0161\u00ed. Probl\u00e9m je v tom, \u017ee zat\u00edmco \u010dlov\u011bk tato rozhodnut\u00ed dok\u00e1\u017ee u\u010dinit, autonomn\u00ed vozidla a vestav\u011bn\u00e9 strojov\u00e9 u\u010den\u00ed toho nemus\u00ed b\u00fdt schopny.<\/p>\n<p style=\"text-align: justify;\">Proto syst\u00e9m Metis obsahuje tak\u00e9 ant\u00e9ny proti v\u00edcecestn\u00e9mu sign\u00e1lu, kter\u00e9 sni\u017euj\u00ed vliv v\u00edcecestn\u00e9ho sign\u00e1lu na sign\u00e1ly GPS, a moduly mrtv\u00e9ho po\u010d\u00edt\u00e1n\u00ed, kter\u00e9 zaji\u0161\u0165uj\u00ed p\u0159esn\u00e9 ur\u010den\u00ed polohy v situac\u00edch, kdy je sign\u00e1l GPS slab\u00fd nebo nedostupn\u00fd. &#8220;Pokud tuto technologii za\u010dlen\u00edte do vozidel, je velmi u\u017eite\u010dn\u00e1 ve vnit\u0159n\u00edch m\u011bstsk\u00fdch oblastech, aby se zabr\u00e1nilo v\u00edcecestn\u00e9mu sign\u00e1lu,&#8221; zd\u016fraz\u0148uje Holdworth. &#8220;Bez tohoto druhu technologie hroz\u00ed, \u017ee \u0159idi\u010di ztrat\u00ed sign\u00e1l a nebudou skute\u010dn\u011b v\u011bd\u011bt, kde se nach\u00e1zej\u00ed.&#8221;<\/p>\n<p style=\"text-align: justify;\">Mezi b\u011b\u017en\u00e9 situace, kdy m\u016f\u017ee b\u00fdt navigace pomoc\u00ed mrtv\u00e9ho bodu nutn\u00e1, pat\u0159\u00ed podzemn\u00ed parkovi\u0161t\u011b a tunely, nebo pokud se ve m\u011bstech nach\u00e1z\u00ed mnoho vysok\u00fdch budov. Pomoc\u00ed senzor\u016f <em>Metis<\/em> v\u0161ak naviga\u010dn\u00ed syst\u00e9m zjist\u00ed, \u017ee ztratil sign\u00e1l GPS, a pak pou\u017eije pouze inerci\u00e1ln\u00ed senzory, kter\u00e9 st\u00e1le poskytuj\u00ed p\u0159esnou polohu, p\u0159esto\u017ee nem\u00e1 k dispozici polohu GPS.<\/p>\n<p><iframe loading=\"lazy\" title=\"Demo: Metis's Dead Reckoning Sensor Provides Continuous Tracking even with Complete GPS Signal Loss\" src=\"https:\/\/www.youtube.com\/embed\/zUtFhs72Vuw\" width=\"800\" height=\"440\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h3>Kinematick\u00e9 polohov\u00e1n\u00ed v re\u00e1ln\u00e9m \u010dase<\/h3>\n<p style=\"text-align: justify;\">Holdworth upozor\u0148uje, \u017ee sign\u00e1ly GPS a GNNS mus\u00ed proch\u00e1zet zemskou atmosf\u00e9rou, co\u017e m\u016f\u017ee zp\u016fsobit dal\u0161\u00ed probl\u00e9my. GNNS se skl\u00e1d\u00e1 ze syst\u00e9mu satelitn\u00ed navigace (satnav), kter\u00fd vyu\u017e\u00edv\u00e1 mal\u00e9 satelity k ur\u010den\u00ed zem\u011bpisn\u00e9 polohy p\u0159ij\u00edma\u010de u\u017eivatele. Dru\u017eice vys\u00edlaj\u00ed dv\u011b nosn\u00e9 vlny v p\u00e1smu L ozna\u010dovan\u00e9 jako L1 a L2 a nosn\u00e9 vlny p\u0159en\u00e1\u0161ej\u00ed informace z dru\u017eice na Zemi. Holdworth v\u0161ak varuje, \u017ee &#8220;sv\u011btlo m\u016f\u017ee sign\u00e1ly zkreslovat, co\u017e m\u016f\u017ee zm\u011bnit jejich dr\u00e1hu a zp\u016fsobit, \u017ee cesta k GPS\/vozidlu trv\u00e1 d\u00e9le, ne\u017e kdyby \u0161lo o p\u0159\u00edm\u00fd probl\u00e9m&#8221;.<\/p>\n<p style=\"text-align: justify;\">\u0158e\u0161en\u00edm je podle n\u011bj m\u00edt m\u00edstn\u00ed z\u00e1kladnov\u00e9 stanice, kter\u00e9 tyto nep\u0159esnosti m\u011b\u0159\u00ed v atmosf\u00e9\u0159e. Holdworth zd\u016fraz\u0148uje, \u017ee to zajist\u00ed p\u0159esnost 2,5 m pro vozidlo pou\u017e\u00edvaj\u00edc\u00ed standardn\u00ed GPS. S rozvojem technologi\u00ed je v\u0161ak nyn\u00ed mo\u017en\u00e9 j\u00edt je\u0161t\u011b o krok d\u00e1l: &#8220;Nep\u0159esnosti zp\u016fsoben\u00e9 atmosf\u00e9rick\u00fdmi vlivy se m\u011b\u0159\u00ed na z\u00e1kladnov\u00fdch stanic\u00edch; v z\u00e1vislosti na tom, jak daleko jste od z\u00e1kladnov\u00e9 stanice, bude z\u00e1le\u017eet na tom, jak p\u0159esn\u00e9 budou korekce.&#8221;<\/p>\n<p style=\"text-align: justify;\">Co je tedy t\u0159eba zav\u00e9st, je kinematick\u00e9 ur\u010dov\u00e1n\u00ed polohy v re\u00e1ln\u00e9m \u010dase (RTK) GPS. RTK bylo poprv\u00e9 vyvinuto v 90. letech 20. stolet\u00ed jako vylep\u0161en\u00ed tradi\u010dn\u00edho syst\u00e9mu GPS, kter\u00fd vytvo\u0159ilo americk\u00e9 ministerstvo obrany v 70. letech 20. stolet\u00ed. Proto\u017ee technologie RTK GPS ji\u017e n\u011bjakou dobu existuje, jej\u00ed cena se v\u00fdrazn\u011b sn\u00ed\u017eila, co\u017e znamen\u00e1, \u017ee jej\u00ed integrace do dal\u0161\u00edch vozidel je pro v\u00fdrobce automobil\u016f atraktivn\u011bj\u0161\u00ed ne\u017e d\u0159\u00edve, \u0159\u00edk\u00e1 Holdworth.<\/p>\n<p style=\"text-align: justify;\">RTK je aplikace geod\u00e9zie k oprav\u011b b\u011b\u017en\u00fdch chyb sou\u010dasn\u00fdch syst\u00e9m\u016f GNSS. Z\u00e1kladn\u00ed koncepce spo\u010d\u00edv\u00e1 ve sn\u00ed\u017een\u00ed a odstran\u011bn\u00ed chyb spole\u010dn\u00fdch pro z\u00e1kladn\u00ed stanici a modul roveru, kter\u00fd je namontov\u00e1n na vozidle. \u0158\u00eddic\u00ed jednotka z\u00e1kladn\u00ed stanice p\u0159ij\u00edm\u00e1 vstupn\u00ed \u00fadaje z roveru a \u0159\u00edd\u00ed jeho \u010dinnost \u00fapravou jeho polohy vzhledem k referen\u010dn\u00edmu bodu.<\/p>\n<p style=\"text-align: center;\">\u00a0<img decoding=\"async\" src=\"https:\/\/media.automotiveworld.com\/app\/uploads\/2023\/03\/09134813\/Metis-Engineering_Untethered-Dead-Reckoning-Sensor.jpg\" \/><\/p>\n<p style=\"text-align: center;\"><em>\u00a0Sn\u00edma\u010d mrtv\u00e9ho bodu od <\/em><em>Metis Engineering<\/em><\/p>\n<p style=\"text-align: justify;\">Holdworth zd\u016fraz\u0148uje, \u017ee to je d\u016fle\u017eit\u00e9 ve f\u00e1zi sb\u011bru dat. Tato technika zahrnuje m\u011b\u0159en\u00ed nosn\u00e9 f\u00e1ze dru\u017eicov\u00e9ho sign\u00e1lu, kter\u00e1 je n\u00e1sledn\u011b podrobena sofistikovan\u00fdm statistick\u00fdm metod\u00e1m, aby se vyrovnala f\u00e1ze ze sign\u00e1l\u016f a eliminovala v\u011bt\u0161ina standardn\u00edch chyb GPS. Tato data pak mohou b\u00fdt odesl\u00e1na do jednotky GPS a poskytnout p\u0159esnou polohu &#8220;na centimetr p\u0159esn\u011b&#8221;.<\/p>\n<h3 style=\"text-align: justify;\">Autonomn\u00ed vozidla (AV)<\/h3>\n<p style=\"text-align: justify;\">Dod\u00e1v\u00e1, \u017ee RTK by mohla b\u00fdt d\u016fle\u017eit\u00e1 zejm\u00e9na pro autonomn\u00ed \u0159\u00edzen\u00ed. &#8220;AV budou pou\u017e\u00edvat nejr\u016fzn\u011bj\u0161\u00ed senzory k rozhodov\u00e1n\u00ed o tom, ve kter\u00e9m j\u00edzdn\u00edm pruhu se \u0159idi\u010d nach\u00e1z\u00ed nebo kde je auto na map\u011b, tak\u017ee je velmi u\u017eite\u010dn\u00e9, pokud se m\u016f\u017eete dostat na \u00farove\u0148 centimetr\u016f,&#8221; \u0159\u00edk\u00e1.<\/p>\n<p style=\"text-align: justify;\">&#8220;Zaj\u00edmalo by m\u011b, co si o t\u00e9to technologii mysl\u00ed \u0161ir\u0161\u00ed automobilov\u00fd pr\u016fmysl a pro\u010d by ji hr\u00e1\u010di pou\u017e\u00edvali nebo nepou\u017e\u00edvali,&#8221; \u0159\u00edk\u00e1 Holdworth. N\u011bkte\u0159\u00ed v\u00fdrobci automobil\u016f, v\u010detn\u011b spole\u010dnost\u00ed Ford a GM, zkoumaj\u00ed vyu\u017eit\u00ed technologie RTK ve sv\u00fdch autonomn\u00edch syst\u00e9mech \u0159\u00edzen\u00ed a pokro\u010dil\u00fdch asisten\u010dn\u00edch syst\u00e9mech \u0159idi\u010de (ADAS) pro zlep\u0161en\u00ed p\u0159esnosti ur\u010dov\u00e1n\u00ed polohy a lokalizace. V\u00fdvoj\u00e1\u0159 AV <em>Waymo<\/em> dokonce vyvinul vlastn\u00ed \u0159e\u0161en\u00ed RTK, kter\u00e9 pou\u017e\u00edv\u00e1 ke zlep\u0161en\u00ed p\u0159esnosti ur\u010dov\u00e1n\u00ed polohy. Mimo tyto p\u0159\u00edklady v\u0161ak RTK z\u016fst\u00e1v\u00e1 v automobilov\u00e9m pr\u016fmyslu relativn\u011b novou a okrajovou technologi\u00ed.<\/p>\n<p style=\"text-align: justify;\">Bez ohledu na to poznamen\u00e1v\u00e1, \u017ee RTK by se nem\u011bla pou\u017e\u00edvat samostatn\u011b; sp\u00ed\u0161e by se m\u011bla spojit s dal\u0161\u00edmi soubory dat, jako je nap\u0159\u00edklad rozpozn\u00e1v\u00e1n\u00ed obrazu. &#8220;Sna\u017e\u00edme se hledat \u010dipov\u00e9 sady nebo ji\u017e vyvinut\u00e9 technologie, kter\u00e9 bychom mohli pou\u017e\u00edt a integrovat za \u00fa\u010delem vytvo\u0159en\u00ed na\u0161ich produkt\u016f.&#8221; V\u00fdrobc\u016fm OEM Holdworth rad\u00ed, aby se nespol\u00e9hali na jednu technologii. Nam\u00edsto toho by se f\u00faze inovac\u00ed naviga\u010dn\u00edch technologi\u00ed mohla nakonec uk\u00e1zat jako cenn\u011bj\u0161\u00ed a efektivn\u011bj\u0161\u00ed.<\/p>\n<p>&nbsp;<\/p>\n<p>Zdroj: automotiveworld.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Technologie glob\u00e1ln\u00edho polohov\u00e9ho syst\u00e9mu (GPS) zp\u016fsobila revoluci v ur\u010dov\u00e1n\u00ed polohy objekt\u016f a v navigaci. Trh s glob\u00e1ln\u00edmi dru\u017eicov\u00fdmi naviga\u010dn\u00edmi syst\u00e9my (GNSS) m\u011bl v roce 2021 hodnotu 198,9 miliardy eur (212,68 USD) a podle progn\u00f3z se do roku 2031 pravd\u011bpodobn\u011b zv\u00fd\u0161\u00ed na 492,2 miliardy eur, uv\u00e1d\u00ed Statista. S v\u00fdvojem technologi\u00ed GPS a GNSS se v\u0161ak odhaluj\u00ed [&hellip;]<\/p>\n","protected":false},"author":81,"featured_media":22262,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"kategorie_prispevku":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Spojen\u00ed technologi\u00ed by mohlo posunout GPS ve vozidlech | Autoklastr<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/autoklastr.cz\/cs\/spojeni-technologii-by-mohlo-posunout-gps-ve-vozidlech\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:locale:alternate\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Spojen\u00ed technologi\u00ed by mohlo posunout GPS ve vozidlech\" \/>\n<meta property=\"og:description\" content=\"Technologie glob\u00e1ln\u00edho polohov\u00e9ho syst\u00e9mu (GPS) zp\u016fsobila revoluci v ur\u010dov\u00e1n\u00ed polohy objekt\u016f a v navigaci. Trh s glob\u00e1ln\u00edmi dru\u017eicov\u00fdmi naviga\u010dn\u00edmi syst\u00e9my (GNSS) m\u011bl v roce 2021 hodnotu 198,9 miliardy eur (212,68 USD) a podle progn\u00f3z se do roku 2031 pravd\u011bpodobn\u011b zv\u00fd\u0161\u00ed na 492,2 miliardy eur, uv\u00e1d\u00ed Statista. 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