I-Flightradar24 - isebenza kanjani?

Cishe wonke umuntu owake wahlangana noma wabona izihlobo noma abangani endizeni usebenzise isevisi yamahhala ye-Flightradar24. Lena indlela elula kakhulu yokulandelela indawo yendiza ngesikhathi sangempela.

Njengoba ucwaningo lwabangane lubonise, bambalwa kakhulu abantu abazi ukuthi le sevisi isekelwa kuphela abathanda abathumela idatha kuseva. Bambalwa nakakhulu abazi ukuthi noma ubani angajoyina iphrojekthi.

Asivale lesi sikhala. Sizoqhubeka ngezansi kokusika ukuthi kusebenza kanjani.

I-Iron

Umbuzo wokuqala ukuthi idatha ivelaphi.

Indiza ngayinye yabantu abavamile ifakwe umshini wokuthungatha okhethekile, okuthiwa I-ADS-B transponder:

(isithombe esivela kuwebhusayithi ye-Garmin)

Le divayisi ithumela imilayezo ekhethekile ngemvamisa engu-1090 MHz equkethe imingcele yendiza eyisisekelo, uhlobo lwendiza, izixhumanisi zayo, indawo okuyiwa kuyo, njll.

Isiginali ku-spectrum ibukeka kanjena:

Futhi okubaluleke kakhulu kithi ukuthi ukususa amakhodi le datha akunzima; isamukeli se-RTL-SDR, esibiza cishe u-$8, esixhunywe kukhompuyutha kwanele. Empeleni, umqondo usuvele ucacile - uma siqoqa idatha kubamukeli abaningi, sizothola isithombe esifana nalesi:

Kodwa akugcini lapho. Ezinye izindiza zithumela amaphakethe edatha, kodwa awaqukethe izixhumanisi ze-GPS. Uma uthola idatha ngesikhathi esisodwa kwabamukeli abaningi, izixhumanisi zazo ezaziwa, khona-ke ngokuhlaziya ukubambezeleka kwabamukeli abahlukene, ungathola indawo yendiza. Lobu buchwepheshe bubizwa nge-multilateration (MLAT), ungafunda kabanzi ngakho Online.

Futhi ekugcineni, umbuzo wokugcina ukuthi idatha yamukelwa kanjani. Impendulo ilula, noma ubani angasingatha umamukeli, intengo isuka ku-$0 iye ku-$50. Isibonelo, ibukeka kanje imephu yomamukeli wesevisi ye-Flightaware:

Njengoba ubona, ukumbozwa kwengxenye yesiRashiya kushiya okuningi okufunayo, ngakho-ke abanye banethuba elihle lokuba ngowokuqala.

Ukuze uthole idatha udinga:

- I-Raspberry Pi2/3 ene-inthanethi exhunyiwe (intengo esuka ku-$20)
- I-RTL-SDR dongle (inani elisuka ku-$10)
- okungenani i-antenna elula ehlanganisa izingcezu ezi-2 zocingo, ngayinye engu-6.8 cm ubude (1/4 dipole ku-1090 MHz)

Kuyafiseleka futhi ukuba nendawo enombono ovulekile noma ovulekile okungenani ingxenye yesibhakabhaka, ngoba... Izimpawu zokuvama kwe-Gigahertz zimuncwa izithiyo ezifana nezindlu noma izihlahla.

Ngangivele nginakho kokubili i-Raspberry Pi kanye ne-RTL-SDR, ngakho kwakungadingeki ngithenge lutho. Kodwa noma ubani angazama ukuthola isamukeli esenziwe ngomumo mahhala - futhi i-Flightradar ne-Flightaware zithumela amakhithi mahhala kubasebenzisi ezindaweni lapho ukufakwa kunganele okwamanje. Ungathumela isicelo usebenzisa isixhumanisi (I-Flightradar noma I-Flightaware), yebo, kuhle ukuyizama kulabo abahlala endaweni eqhelile.

Ngisebenzise ikhithi ye-RTL-SDR V3, ehlangene ne-antenna kanye ne-tripod encane kubiza u-$27 ngokuthunyelwa kwamahhala okuvela e-China:

Kodwa-ke, njengebhonasi yesibili, kokubili i-Flightradar24 ne-Flightaware inikeza wonke umuntu othumela idatha kuseva. ukufinyelela okungenamkhawulo ku-akhawunti ye-premium kanye nayo yonke imisebenzi yeseva (ngokuhlukene, ukufinyelela okunjalo kubiza cishe u-$50/ngenyanga). Ngakho-ke uma othile enentshisekelo kwezondiza futhi efuna ukufinyelela okunwetshiwe ku-akhawunti enjalo, ukufaka isamukeli se-RTLSDR kungenye indlela eshibhe kakhulu.

Ukuhlola

Ukufaka kulula kakhulu; ku-Raspberry Pi udinga nje ukuxhuma umamukeli bese uqhuba umyalo owodwa:

sudo bash -c "$(wget -O - http://repo.feed.flightradar24.com/install_fr24_rpi.sh)"

Umbhalo uzocela idatha edingekayo (izixhumanisi nohlobo lomamukeli, ikheli le-imeyili), bese isofthiwe izosebenza ngokuzenzakalelayo, ingasadingi ukunakwa komsebenzisi. Ngasikhathi sinye, ungavula i-akhawunti ye-premium (ye-FR24, landela isixhumanisi https://www.flightradar24.com/premium/signup?account=free) futhi ngokushesha usebenzise wonke amakhono ayo (amathrekhi endiza, njll.).

Ungaya ekhasini lekheli le-IP le-Raspberry Pi futhi ubone isimo samanje:

Ulwazi oluthe xaxa lungabonwa ekhasini le-akhawunti ye-Flightradar24:

Ngihlala esitezi sesi-6 ngokuqhathaniswa nesikhumulo sezindiza, ngakho inani lezindiza ezibonwa ngosuku lalingaphezu kuka-1000, ngisho nothi olulula efasiteleni. Kuyathakazelisa ukuthi ngisho ne-antenna enjalo, ububanzi obukhulu endizeni eyamukelwe yayingamamayela angu-215. Izinketho ezihlukene ze-antenna zingatholakala ku-ebay ngokucinga i-ads-b antenna.

Okunye

Ibhonasi kulabo ababenesineke sokufunda kuze kube manje. Abanye abafundi bangaba nombuzo: kungenzeka yini ukwenza ngaphandle kwezinsizakalo zezinkampani zangaphandle njengeFlightradar? Yebo ungakwazi, ungasebenzisa i-decoder ku-Raspberry Pi ngqo. Ungalanda imithombo ku github.com/antirez/dump1090.

Kwanele ukuthayipha imiyalo emi-3 ku-Raspberry Pi:

git clone https://github.com/antirez/dump1090.git
cd dump1090/
make

I-decoder ingase yethulwe ngomyalo:

./dump1090 --interactive --net

I-decoder iqala ukusebenza, futhi sibona "idatha eluhlaza" - uhlu "lwamabhodi" abonakalayo:

Manje ungaya ku-Raspberry Pi ngesiphequluli futhi ujabulele eyakho, iFlightradar yendawo, isithombe singabukeka kanje:

Kungani lokhu kungase kudingeke? Okokuqala, ngenxa yentshisekelo, okwesibili, i-Flightradar24, ngeshwa, ihlunga enye idatha nemibukiso. hhayi bonke indiza (isibonelo, ezempi, uhulumeni, noma izindiza zebhizinisi zingahle zingaboniswa). Ngokuqalisa isevisi yethu yasendaweni, sibona yonke into “njengoba injalo”, ngaphandle kokuhlolwa. Kodwa, kunjalo, inani ledatha linqunyelwe indawo yethu yasendaweni kanye nekhwalithi ye-antenna, futhi ubuchwepheshe be-MLAT ngeke butholakale. I-Dump1090 itholakala ngekhodi yomthombo, ngakho-ke noma ubani angakwazi nokwenza inguqulo yakhe ye-Flightradar, nge-blackjack nezinye izinsimbi namakhwela.

okutholakele

Njengoba ubona, akulona inkimbinkimbi kangako, futhi kuyathakazelisa futhi akubizi kakhulu. Ukubeka intengo ngendlela efanele: eminyakeni eyi-10 edlule, isamukeli se-Airnav RadarBox sabiza cishe 1000$, manje usungathola i-RTL-SDR eyenza into efanayo ngo-$10.

Endabeni yami, umamukeli wethulwa ukuhlolwa kuphela; awukho umqondo osebenzayo wokuyigcina ivuliwe njalo; ukuminyana kokumbozwa kwengxenye yaseYurophu kakade kufinyelela ku-100%. Kubahlali basemaphandleni aseRussia, ngokuphambene nalokho, lokhu kungase kuthakazelise kakhulu - kukhona ithuba lokuthi bobabili benze okuthile okuwusizo kubahambi bezindiza emhlabeni wonke, ukwandisa indawo yokuxhumana, futhi bathole ukufinyelela ku-akhawunti ye-Premium yalokhu okukhulunywe ngenhla. amasayithi.

Jabulela wonke umuntu.

Source: www.habr.com