Simudza maoko ako kana iwe uchiziva kuti izvi zvinogona kutungamirira kunei! Zvakanaka, izvi zvese zvinonakidza, asi kana iwe ukanyatsotarisisa iyo 65 mph muenzaniso, uchaona dambudziko diki. Mudziyo wangu unogara uchitumira sipidhi iyi nekuti unoshanda pane imwe frequency yakatemwa, asi ko kana ndikatyaira ndichipfuura nechikoro pari kushanda? Uye zvakare, isu hatimbo ziva chaizvo kuti ndeipi nguva iyo radar yemapurisa inotumira chiratidzo.
Zvisinei, shamwari, ndinofanira kutaura kuti tiri kurarama munguva dzinonakidza. Isu tinorarama mune ramangwana iro ruzivo rwese rwenyika rwuri pamunwe wedu uye tinogona kuita chero chatinoda narwo. Mitsva yemotokari radar inocherekedza, senge Valentine One uye Escort 360, inoona zvikwangwani zveradar zviri makiromita 2-3 pamberi pemota yako uye, uchishandisa Bluetooth, ratidza ruzivo pachiratidziro kuti radar yemapurisa iri kuburitsa zviya masaini kakawanda sei (kuombera maoko. )
Ndichambomira kwechinguva kuratidza kutenda kwangu kuna Tri Wolfe, akagara ipapo, nekundipa nzvimbo iri nyore yekuitisa mimwe bvunzo, zviri pamutemo uye zviri pamutemo.
(23:50) Saka, chatinofanira kuita chete kugadzira application inotitaurira iyo yazvino yekumhanya, senge traffic API. Chizvarwa chemazuva ano chemagetsi ekuona radar anonyatsoziva kuwanda kwemafungu emapurisa eradar ari chinhambwe chinosvika makiromita maviri. Kubva pane izvi unogona kuverenga yazvino yekumhanyisa muganho painofanirwa kufamba nemotokari yako uye kuwanda kwechiratidzo chinoratidza kumhanya uku.
Chatinongoda ipurosesa, diki kwazvo. Pane siraidhi unoona ESP 8266 microcontroller, yakakwana. Nekudaro, dambudziko nderekuti maSDRs, kana software yakatsanangurwa maredhiyo, aripo nhasi haashande mune ino yakakwirira-frequency kana microwave nzvimbo, ivo vakagadzirirwa yakaderera-frequency spectrum. Asi kana iwe ukatora iyo hardware zvakakomba, unogona kuunganidza chishandiso chatinoda mari inosvika mazana manomwe emadhora. Uyezve, yakawanda yeiyi mari ichave mutengo wekusimudzira SDR yekukwira-frequency kutapurirana.
(25:10) Zvisinei, FCC haidi kuti uite izvi. Kushandisa mudziyo kuvhiringa radar imhosva inorangwa nefaindi ye$50 5 kana makore mashanu mujeri, kana zvese zviri zviviri. Radar jammers dzave zvisiri pamutemo muUnited States kubva 1996, zvichiita kuti chero munhu anoshandisa kana kutengesa zvishandiso izvi ave tsotsi remubatanidzwa.
Iyo Federal Communications Commission inotora izvi zvakakomba zvekuti hautombotenderwe kushambadza izvi zvishandiso kana kusimudzira mashandisiro azvo. Kana iwe ukanyatsotarisisa iyi $700 mudziyo, uchaona kuti zvechokwadi haina kudhura. Asi kuziva nzira yekugadzira radar jammer, tinoita kuti iwanike, uye ipapo iwe unogona kuita sarudzo yakarurama - kuishandisa kana kusashandisa.
Saka, FCC haizotibvumiri kuti tikurumidze kuita izvi. Saka ngationei kuti ndeapi matanho anoshanda uye emutemo anowanikwa kwatiri? Izvo zviripo uye zvinomiririrwa nezvinhu zvinowanikwa pachena. Kana iwe usina mukana wekushandisa emazuva ano redhiyo-electronic radar detectors, shandisa mamwe madivayiri, sarudzo yavo inongova yakakura.
Mazuva ano radar detectors Uniden R3/R7, Escort Max360, Radenso Pro M kana Valentine One w/BT inonyatso tora chero kuburitswa kweredhiyo, ese aya airatidza uye akananga masaisai eredhiyo, ari chinhambwe chinosvika mamaira maviri, asi vasingakwanise kuona laser. Nekudaro, vanhu vazhinji vanoziva kuti mapurisa anoshandisa lasers sechiyereso chekuyeresa. Uye pano tine loophole! Chokwadi ndechekuti mutemo wekushandiswa kwemidziyo yemwenje, ndiko kuti, zvishandiso zvinoburitsa mwenje, izvo zviri lasers, hazvitombove mukati mekuona kweFCC - iyo ndiyo prerogative yeFDA, iyo Chikafu uye Drug Administration. Saka ngakuve nechiedza!
Zvinoitika kuti idzi pfuti dzelaser dzakasiyana zvakanyanya neredhiyo frequency makunakuna. Ivo vanoshandisa chitarisiko kuratidza chakanangana chakanangana. Uchitarisa pamufananidzo, uchaona kuti handheld laser radar ine maviri lenzi. Iyo diki ndeye transmitter lens inoburitsa masaisai emwenje, uye iyo hombe lens inoshandiswa kugamuchira masaisai anoratidzwa kubva kune chinangwa. Mumasekondi iwe unonzwisisa kuti nei izvi zvakakosha.
Chandinonyanya kuda nezve laser ndechekuti mukuru anofanirwa kuibata sechombo. Ndokunge, mudziyo uyu unofanirwa kugadzikana, unofanirwa kubvumidza iwe kuti utarise uye uwane inotaridzika pamusoro pemota yako kuitira kuti ugamuchire chiratidzo kumashure.
Muchokwadi, mupurisa anofanirwa kunanga mwenje, rezinesi ndiro, kana imwe nzvimbo inopenya kana inopenya yemotokari yako. Vhidhiyo iyi inoratidza zvinoonekwa nemupurisa kuburikidza neanoona kana akananga laser detector pamotokari achishandisa reticle yakavhenekerwa.
Nekuti ma lasers anodzorwa neFDA, zvishandiso izvi zvinofanirwa kunge zviri zveClass 1 lasers. Zvichitaurwa zviri nyore, laser detector yakafanana nelaser pointer. Ivo vanofanirwa kuve vakachengeteka kumaziso, saka simba ravo rakaderera, uye huwandu hwemwaranzi hwakadzoserwa kumapurisa radar idiki zvakaenzana.
Pamusoro pezvo, nekuda kwemutemo weFDA, zvishandiso izvi zvinogumira mukuwanda kwemasaisai emwenje, uchishandisa infrared laser ine wavelength ye904 nanometers. Iyo isingaonekwe laser beam, asi chinotonyanya kushamisa ndechekuti iyakajairwa wavelength danda.
Iyi ndiyo chete chiyero chinotenderwa, zvishandiso zvinoitsigira zvine simba rakaderera, uye iwe neni tinogona kuzvitenga zvakare.
(29:40) Ngatirangarirei kuti radar inoyera chii? Speed. Asi laser haiyere kumhanya, inoyera chinhambwe. Ikozvino ini ndinokuratidza siraidhi yakakosha uye ndinokupa nguva yekunyora pasi iyi inoshamisa formula: kumhanya yakaenzana chinhambwe chakakamurwa nenguva. Ndakaona kuti mumwe munhu akatotora mufananidzo weslide iyi (kuseka muvateereri).
Chiripo ndechekuti kana pfuti dzemalaser dzichiyera chinhambwe, dzinozviita pamhepo yakanyanya, kazhinji 100 kusvika mazana maviri zviyero pasekondi. Saka nepo radar detector yatodzima, pfuti ye laser inoramba ichiyeresa kumhanya kwako.
Iwe unoona siraidhi inoratidza kuti mu2/3 ββyedunhu renyika yedu kushandiswa kwema laser jammers kunoonekwa sezviri pamutemo - idzi nyika dzinoratidzwa negirinhi pamepu. Ruvara rweyero runoratidza nyika uko kushandiswa kwemidziyo iyi kusiri pamutemo, uye ini handigone kufungidzira kuti gehena ririkuitika muVirginia, uko zvese zvinorambidzwa (kuseka muvateereri).
(31:10) Saka tine sarudzo mbiri. Nzira yekutanga ndeyokushandisa motokari ine mazhenje akavanzika mu "show and hide" mode. Haina kunyanya kushanda, asi inosekesa uye ichaita kuti zviome kwazvo kuti mukuru atarise kwaari.
Yechipiri sarudzo ndeye kushandisa yako laser pfuti! Kuti tiite izvi tinofanira kuziva kuti inoshanda sei. Tisati tatanga, ini ndinokuratidza mimwe mienzaniso yenguva. Nguva dzatichataura nezvadzo hadzishande kune ese aripo laser radar, asi anoshanda kune frequency yaanoshandisa. Paunenge uchinge wanzwisisa mashandiro avanoita, iwe unozonzwisisa maitiro ekurwisa yega yega laser radar, nekuti zvese zvinongouya kunyaya yenguva.
Saka, zvinonyanya kukosha ma paramita ndeye pulse hupamhi, ndiko kuti, kuti laser yakavhurwa kwenguva yakareba sei, uye nguva yekutenderera, ndiko kuti, kangani kanopisa. Iyi slide inoratidza hupamhi hwekuputika: 1,2,3,4,5 - pulse-pulse-pulse-pulse-pulse, ndizvo zvinoita pulse width. Uye iyo nguva yekutenderera, kureva, nguva yepakati pakati pemapuru maviri, i5 ms.
Iwe uchanzwisisa mune yechipiri, asi chikamu ichi chakakosha chaizvo. Kana pfuti yelaser ikatumira nhevedzano yemapuruzi, inotarisirei semhinduro? Ndechipi chimiro chemuviri chaanoda kuita? Ndizvozvo, chinhambwe! Mhedzisiro inoyera kureba. Saka kana mota yako yarova fungidziro yekutanga uye yodzoka, zvinoreva here kuti mukuru akarekodha kumhanya kwako? Kwete, anogona kungoziva kuti uri kure zvakadini naye. Anokwanisa kuverenga kumhanya chete nekugamuchira chiratidzo chinoratidzwa chechipiri, chechitatu uye chinotevera pulses. Iwe unogona kuona mapindiro enguva pakati pemhepo yakaburitswa uye nekuratidzwa kwayo kwakagamuchirwa kushanduka nechinhambwe: 1000 tsoka, 800 tsoka, 600 tsoka, 400 tsoka - iyo iri padyo nemota, ipfupi nguva yepakati pakati pezvinoburitswa uye zvinoratidzwa. Kuchinja aya ma paramita anotendera iwe kuverenga kumhanya kwemota yako. Ndosaka vachitora zviyero zvakawanda pasekondi - zana kana kunyange mazana maviri - kukurumidza kuona kumhanya kwako.
Ngatiwedzere chinhambwe pakati pemapurusi ega uye titaure nezve mamwe matanho ekupikisa. Saka, aya mabhawa matsvuku anomiririra mapurusi anoburitswa nepfuti ye laser: pulse-pulse-pulse. 3 pulses chete. Mabhawa eorenji ndiwo anodzoserwa maratidziro ega ega kupuruzira. Pakati pemapurusi maviri akabudiswa tine 5 ms yakafara "hwindo" umo yedu pachedu inoratidzira pulse inodzokera. Tiri kuyera chii? Ndizvozvo, chinhambwe! Hatiyere kumhanya zvakananga.
Saka kana tikadzorera simba redu pamberi pesimba chairo, rinoratidzirwa radzoka, taigona kuratidza radar kuti taiva kure zvakadini nayo. Zvandichakuratidza zvinotevera ndiyo yakajairwa brute simba nzira.
Fungidzira uchityaira uchinyatsoziva kuti laser irikurova papi pa - 1 millisecond pa904 nm. Pfungwa ndeyokuti nekutsiva iyo inoratidzwa laser siginecha nemasaini edu pachedu, isu tinoratidza mapurisa kuti tiri pane imwe chinhambwe kubva kwavari. Ini handiudze radar kuti ndiri kuenda 97 miriyoni mamaira paawa, kwete, ndinoita kuti ifunge kuti ndiri pedyo, zvakanyanya, semamita zana kubva kure. Chiratidzo chekutanga chinoti ndiri 100 tsoka kure, ipapo chiratidzo chechipiri chinouya kwachiri, icho zvakare chinoti ndiri 100 metres kure, ipapo chechitatu chinoti 100 tsoka zvakare, nezvimwe. Zvinorevei? Kuti ndiri kufamba ne zero speed!
Kune akawanda laser radar pamusika, kushandisa nzira iyi kunoguma nekukanganisa meseji. Simba rakapusa riri muchimiro che millisecond pulse rinokonzeresa meseji yekukanganisa kuoneka pachiratidziro cheradar.
(35:10) Pane midziyo yakati wandei inokutendera kuti ushandise nhanho dzekupikisa, tichataura nezvazvo muchidimbu. Dzimwe dzepfuti nyowani dzelaser dzinogona kuziva kuti ndakatumira imwe pulse uye ndakagamuchira 4. Kurwisa kupindira, vanoshandisa laser shifting, kureva kuti, vanoshandura hupamhi hwepurusi kuti iyo yechokwadi inoratidzwa pulse ikwane muchikamu kwete. kubatwa nemazino. Asi isu tinogona kuramba izvi zvakare. Kana tangonzwisisa kuti pulse yakabviswa inochinjirwa kupi, ndiko kuti, kukosha kweiyo laser shift, tinogona kushandura mapuruzi edu anoratidzwa ipapo. Chinhu chinonakidza ndechekuti kuziva iyo pulse hupamhi uye nguva, tinogona kuona iyo laser pfuti neyechipiri pulse.
Tagamuchira fungidziro yekutanga, tinobva tangoshandisa nzira ye brute force, tinogashira chirevo chechipiri uye kunyatsoona kuti ndeupi pfuti yakananga kwatiri, mushure mezvo isu tinogona kushandisa matanho ekupikisa. Ndichakurumidza kukuudza zvavari.
Mabhawa matsvuku ari pachisiraidhi anomiririra mapuruzi akaburitswa e laser radar, iwo orenji ndiwo maratidziro avo kubva pachipingamupinyi chinofamba, uye iwo akasvibira ndiwo mapurusi atinodzokera kune iyi radar.
Zvese zvatinogona kuita kusiyanisa mapurusi eyedu laser. Tine 5 millisecond hwindo rekutumira mapurusi akadzoserwa, uye chinhu chekutanga chatinoda kuita ndechekudzosa chiratidzo chekutanga chakagamuchirwa pa 600 tsoka kubva radar. Tagamuchira chirevo chechipiri, tinoona kuti rudzii rweradar yakatumira uye toona kuti ndiani akatinanga. Isu tinogona kuzoshandisa zviyereso uye totaura kuti isu tiri kure kure, senge 999 tsoka kure. Ndiko kuti, maererano neradar yakationa, isu tichaenda kure. Nenzira iyi tinogona kurwisa akawanda laser radar modhi. Commercial laser jammers vanoita chinhu chimwe chete. Pane akati wandei emidziyo yakadai pamusika inogona kutengwa zvakasununguka iyo inoshandisa zviyero zvakafanana. Ingoyeuka kuti zvishandiso izvi zviripo.
(37:20). Makore akati wandei apfuura ndakagadzira mudziyo unonzi COTCHA. Iyi ESP 8266 yakavakirwa pamusimboti weWi-F yekubira uye yakavakirwa pachikuva cheArduino. Iyi ndiyo mhinduro yakabudirira kwazvo, pahwaro hweimwe hacker zvigadzirwa zvemagetsi zvinogona kugadzirwa. Zvino ini ndoda kukuzivisa iwe kune yakakomba mudziyo unonzi NOTCHACOTCHA. Iyi laser jammer yakavakirwa paESP 8266, ichishandisa 12V simba, izvo zvinoita kuti zvive nyore kuisa mumotokari. Ichi chishandiso chinoshandisa brute force mode yechiedza chemwaranzi ine wavelength ye940 nm, ndiko kuti, inogadzira mapurusi ane frequency ye1 ms. Iyo inobatana neiyo smartphone ichishandisa isina waya module uye inogona kushandiswa pamwe neiyo Android application. Mune dzimwe nyika, kushandiswa kweiyi "jammer" kuri pamutemo zvachose.
Iyi "jammer" inogona kubata 80% yemalaser radars ari kushandiswa, asi haikwanise kupikisa masisitimu epamberi seDragon Eye, ayo anoshandiswa nemapurisa senzira yekupokana nechisimba.
Uye zvakare, isu tinoita majammers aya akavhurika-sosi, sezvo kune vhezheni dzekutengesa dzemidziyo yakadaro, uye hazvina kuoma kwatiri kushandisa reverse engineering kwavari. Saka zviri pamutemo mune dzimwe nyika, rangarira nzvimbo dzakasvibira pamepu yeUS? Nenzira, ndakakanganwa kuisa Colorado pakati pe "girinhi" inoti, uko kushandiswa kwema laser jammers kunobvumirwawo.
NOTCHACOTCHA inoshandawo mulaser radar emulation mode, ichikutendera kuti uedze mamwe majammers, radar detectors, zvichingodaro. Zvakare, mudziyo uyu unotsigira MIRT modhi kusanganisira girini mwenje, asi iyi ipfungwa yakaipa kwazvo. Zvichida, haufanirwe kuita izvi zvakadaro (kuseka muvateereri).
Ini ndichakuudza kuti NOTCHACOTCHA rusununguko, nerubatsiro rwayo isu tinogona kutora kutonga kune chero masisitimu akanangana nesu. Ini ndichakurumidza kutaura nezvezvinhu izvo "jammer" inounganidzwa. Iyi iESP 8266 model D1 mini, inoita dhora nehafu, 2,2 kOhm resistor inokosha masendi matatu, 3 V voltage converter ye3,3 cents, TIP 54 transistor yemasendi masere uye LED panel yekuburitsa chiedza kureba kwe102 nm. Pamadhora matanhatu, ichi ndicho chikamu chinodhura chemudziyo. Kazhinji, izvi zvese zvinodhura madhora masere (kuombera kubva kune vateereri).
Unogona kudhawunirodha runyorwa rwezvishandiso, makodhi uye akati wandei mamwe "akaipa" mazano kubva pane chinongedzo , zvese izvi zviri paruzhinji. Ndaida kuunza "jammer" yakadai pano, ndine imwe, asi nezuro ndakaityora ndichidzidzira kuita kwangu.
Shevedzera kubva kune vateereri: "Bill, unoyamwa!"
Ndinoziva, ndinoziva. Saka chinhu ichi chakavhurika sosi uye iyo brute force mode inoshanda zvikuru. Ndakatarisa izvi nekuti ndinogara kuKansas uye zvese zviri pamutemo ipapo.
Ndoda kuti muzive kuti this is only first round. Ini ndicharamba ndichigadzira iyo kodhi, uye ndingatenda zvikuru nerubatsiro mukugadzira yakavhurika-sosi laser jammer inogona kukwikwidza nekutengesa analogues. Ndatenda vakomana, takava nenguva yakanaka uye ndinokutendai zvikuru!
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Source: www.habr.com