Muva nje ngiphawule ukuthi ikati elizacile futhi elinamahloni, elinamehlo adabukisayo, lifike lahlala endlini engaphansi ...
Akazange axhumane, kodwa wasibukela kude. Nginqume ukumelapha ngokudla kwe-premium, okuyinto ubuso bekati lethu elifuywayo elikhuphukayo. Ngisho nangemva kwezinyanga ezimbili zokwelashwa, ikati lisayigwema yonke imizamo yokuxhumana nalo. Mhlawumbe wayithola kubantu ngaphambili, okwaholela ekubeni abe namahloni.
Njengoba besho, njengoba u-Mohammed engayi entabeni, intaba ngokwayo iyofika ku-Mohammed. Ngokuphathelene noshintsho oluzayo lwenkathi kanye nesimo sezulu esibandayo esingenakugwenywa, nganquma ukumakhela uhlobo oluthile "lwendlu", ngilubeke endaweni yakhe, okungukuthi, e-attic.
Isisekelo sendlu umbhede owenziwe ngebhokisi eliphindwe kabili elivela kumango waseHainan. Ukuphinda kabili kulapho ibhokisi lifakwa esivalweni esihlanekezelwe ebhokisini elifanayo. Ingxenye ngayinye iphindwe kabili, ngakho ibhokisi liphenduka libe kane futhi libe namandla anyukile. AmaShayina azi okuningi ngamabhokisi, njengoba usayizi wawuphelele kumakati. 🙂 Phakathi kwezendlalelo, ngibeke umugqa we-laminate ebhokisini ukuze uthole ukufakwa okwengeziwe kokushisa. Okulandelayo, ngibeka izingqimba ezi-2 zerabha yegwebu eyisentimitha phansi, futhi phezulu - ithawula elidala eligoqwe kathathu.
Ngokwazi ukuthi “isinyathelo sobisi” siyini ngokudedelwa kwezinzipho, nokuthi noma iyiphi indawo yokulala izoshwabana ngokuhamba kwesikhathi, ngithunge zonke izingqimba ezintathu zethawula zaze zafika ebhokisini. Ngaphezu kwalokho, akazange ayithunge ngemicu, eyayingase ihlafuneke kalula noma idatshulwe yizinzipho, kodwa ngocingo lwethusi (oluvunguzayo) ekufakweni kwe-varnish, oluwugqinsi olufinyelela ku-1,2 mm. Yebo, ilukhuni, kodwa futhi iphikisana ne-vandal, kusukela ezinzipho zekati noma amazinyo.
Ngisebenzisa indlela efanayo, ngithunge wonke amakhona ukuze okokulala kugcine ukuma kwayo, naphezu kwanoma yikuphi ukuhlukunyezwa okuvela kumhlali.
Kodwa akwanele nje ukubeka umbhede othambile, ngoba ebusika kukhona okusalungiswa kweqhwa ku-attic, ngokushisa okufanayo nangaphandle. Lokhu kusho ukuthi umsebenzi uvele wokudala into efana “nedome” ezungeze umbhede wombhede ukuze kugcinwe ukushisa okuvela ekatini. Ukuze wenze lokhu, umbhede olungiselelwe wawufakwa ngaphakathi kwebhokisi elikhudlwana.
Odongeni oluhlangothini lwebhokisi langaphandle nginqume uhlobo "lwesicabha", ngizivala i-passage ukuze ukushisa kungaphunyuki kakhulu.
Njengoba umsebenzi uqhubeka, ubuso bekati obufuywayo bakwazi ukuzama ikhaya elithokomele izikhathi eziningana:
Bakujabulele kakhulu ukunyathela kancane embhedeni, okwathi phakathi nemizuzu emi-5 kwalalisa wonke umuntu:
Nokho, njengoba singakwazi ukugcina izinga lokushisa elizungeze umhlali sisebenzisa i-perimeter evaliwe ngaphandle, kungani-ke singakhiqizi ukushisa khona lapho, ukuze ikati elihlala khona likwazi ukonga ukulahlekelwa ukushisa emzimbeni wakhe. Ukuze wenze lokhu, izingqimba ezimbili ezengeziwe zekhadibhodi eliwugqinsi eline-insulation eshisayo zibekwe phansi kwebhokisi elikhulu, phakathi kwazo izinto ezimbili ezisebenzayo, ezishisayo ezishisayo ezenziwe ngekhebula le-multi-core constantan. Zaziklanyelwe ukunikezwa kwamandla kusuka ku-USB, okungukuthi, ama-volts angu-5. Ngemva kokuwaxhuma ochungechungeni, ngiwaguqulele emandleni asuka ku-9 - 10 volts, ngokusetshenziswa kwamanje kwe-1 Ampere, okungasinika amandla okushisa angama-watts angu-9-10. Futhi lokhu sekuvele kuningi kumthamo omncane wokushisa.
Njengoba isilwane asifundile, singakwazi ukuhlafuna ikhebula lamandla endaweni yokufudumeza esebhokisini. Futhi uma kunjalo, kufanele ucabange ngendaba yokuqinisekisa ukuphepha okuqinisekisiwe kwempilo yesilwane, kusukela ekushayweni kukagesi okungenzeka. Ukuze ngifeze lo msebenzi, ngiyeke ukusetshenziswa kwamayunithi wesimanje futhi ngakhetha uhlobo lwemodi yakudala ye-transformer power supply, ngokuhlukaniswa kwe-galvanic kunethiwekhi (ayizange ifakwe ezithombeni). Nakuba ama-generator e-pulse nawo ane-decoupling, "asancinza" kancane, isibonelo maqondana nesifunda sokushisa.
Nokho, njengoba singene endlini “nezinsimbi nezikhwelo”, ngacabanga ukuthi ngizofaka ibhokisi elisesitezi esingaphansi, ngishayele i-gable nge-sheathing futhi ngivalelise. Kuthiwani uma senza uhlobo oluthile lokuqapha ividiyo? Kuyoba okuthakazelisayo ukuthola ukuthi ikati lizosebenzisa ngokunenzuzo umbono wonke? Bengingafuni ukusebenzisa ikhebula levidiyo; bekuzodinga ukuqoshwa okuningi, ngakho-ke nginqume ukuphendukela ekudluliseni ividiyo ngesiteshi somsakazo. Ngake ngahlangana ne-video transmitter eshile engu-5,8 GHz, umnikazi wayo wakwazi ukuyishisa ngandlela thize. Ikakhulukazi, isigaba sokuphuma kwesikhulisi samandla se-RF sishiswe. Ngemva kokukhipha i-microcircuit yesiteji esinephutha, kanye nawo wonke "amapayipi" e-SMD azungezile, ngixhume okukhiphayo kwesiteji sokudlulisa ividiyo nge-coaxial "bypass" kusixhumi esiphumayo se-SMA se-antenna. Ngisebenzisa i-refleometer yevektha ye-Arinst 23-6200 MHz, ngilinganise i-reflection coefficient ye-S11 futhi ngenza isiqiniseko sokuthi ukuthikamezeka okukhiphayo kumaza okusebenza kuhlala kungaphakathi kwemikhawulo eyamukelekayo, cishe ku-50 Ohms.
Ilukuluku lingene shi, athini-ke amandla angempela alesi sidlulisi sevidiyo “esithenwe,” uma uphakela uthi “ku-boost”, okungukuthi, ngaphandle kwe-amplifier yamandla? Ngithathe izilinganiso ngisebenzisa imitha yamandla ye-microwave enembayo i-Anritsu MA24106A, ebangeni elifanele ukufika ku-6 GHz. Amandla wangempela esiteshini sefrikhwensi ephansi kakhulu yalesi sidlulisi, i-5740 MHz, ayengama-milliwatts ayi-18 kuphela (ku-600 mW). Okusho ukuthi, kuphela i-3% yamandla angaphambilini, amancane kakhulu, kodwa nokho ayamukeleka.
Njengoba kwenzeka ukuthi amandla e-microwave atholakalayo awanele, khona-ke ukuhanjiswa okuvamile kokusakaza kwevidiyo kuzodingeka usebenzise i-antenna engcono.
Ngithole i-antenna endala yale bhendi engu-5,8 GHz. Ngihlangabezane ne-antenna yohlobo lwe-“helical wheel” noma “clover”, okungukuthi, uthi olunomshini ojikelezayo we-polarization, ikakhulukazi ohlangothini lwesobunxele lokuzungezisa. Ezindaweni zasemadolobheni, kuhle nakakhulu ukuthi isignali ngeke ikhishwe nge-polarization yomugqa, kodwa iyindilinga. Lokhu kuzokwenza kube lula futhi kuthuthukise isithombe sokulwa nokuphazamiseka okungenakugwemeka ekwamukelweni okubangelwa ukubonakaliswa okuvela kuzithiyo nezakhiwo eziseduze. Isithombe sokuqala, ekhoneni elingezansi kwesokudla, sibonisa ngohlelo ukuthi i-polarization eyindilinga ye-propagation vector ye-electromagnetic radio wave ibukeka kanjani.
Ngisebenzisa i-analyzer yenethiwekhi ye-vector esanda kulinganiswa (idivayisi ye-VNA), sengilinganise i-VSWR kanye nokubambezeleka kwale antenna, ngabhekana nokudangala okuthile, njengoba kuvele ukuthi kuncane kakhulu. Ngokuvula izembozo ze-antenna nokusebenza ngohlelo lwendawo yazo zonke izidlidlizi ezi-4 lapho, ngesimo esibalulekile sokucabangela ukungeneka kwekhava yepulasitiki, sikwazile ukususa ngokuphelele ukusebenza kabusha kwe-parasitic kokubili kwemvelo enamandla ne-inductive. Ngasikhathi sinye, kwakungenzeka ukushayela ukumelana okusebenzayo endaweni emaphakathi yomdwebo oyindilinga we-Wolpert-Smith (ncamashi ama-Ohms angama-50), ngemvamisa ekhethiwe yesiteshi esingaphansi somsakazo okhona, okungukuthi imvamisa yokusakaza ehleliwe. 5740 MHz:
Ngokuvumelana nalokho, izinga lokulahlekelwa okubonisiwe (kwigrafu emaphakathi ye-logarithmic magnitude) libonise inani le-microscopic lokususa 51 dB. Hhayi-ke, njengoba cishe akukho ukulahleka kwemvamisa ye-resonance yale antenna, isilinganiso se-voltage Stand Wave ratio (VSWR) sikhombisa ukufana okuhle phakathi kuka-1,00 - 1,01 (igrafu ye-SWR ephansi), ngemvamisa efanayo ekhethiwe engu-5740 MHz (ephansi ukusuka iziteshi zokudlulisela ezitholakalayo).
Ngakho, wonke amandla amancane atholakalayo angakhishwa emoyeni womsakazo ngaphandle kokulahlekelwa, okuyilokho okwakudingeka kulokhu.
Kancane kancane, nali isethi yezesekeli ezengeziwe ezahlanganiswa ukuze zifakwe endlini yekati:
Lapha, ngaphezu kwama-“warmers” (amapuleti amakhulu nacwebezelayo ngezansi), isistimu yokuvula/ukuvala eyirimothi nayo yengezwa, ngendlela yesilawulikude somsakazo kanye neyunithi yokwamukela nokudluliswayo, ehlelelwe ukuxhumana ngomsakazo phakathi. ububanzi 315 MHz.
Lokhu kuyadingeka ukuze kungabi nomthelela njalo ekati elilele ngokukhanyisa kwe-LED kanye nesidluliseli somsakazo esishintshiwe, noma ngabe sibuthakathaka kakhulu futhi sitholakala ngemuva kokufakwa kwensimbi kwe-gable ye-attic.
Isilwane kufanele silale ngokuthula, ngaphandle kokukhanyisa okokwenziwa, ikhamera yevidiyo eseduze noma imisebe yomsakazo eyingozi engena kumaseli aphilayo omzimba. Kodwa isikhathi esifushane, nganoma yisiphi isikhathi lapho ucela, ungasebenzisa isilawuli kude ukuze unikeze amandla kukho konke ukusethwa kwevidiyo ngezibani ze-diode strip, ubone ngokushesha ukuthi izibonisi zevidiyo zinjani, bese uvala ngokushesha uhlelo.
Ngokombono wokusetshenziswa kukagesi, lokhu futhi kuyisinqumo esihle futhi esinomnotho.
Umugqa we-LED wama-diode ayi-12 wanqunywa waba izingxenye ezimbili, wanamathiselwa futhi "wathungwa" phezulu ngocingo lwethusi oluqinile olufanayo, ukuze ungadabuki ekuhlaselweni kozipho, futhi izibani zizokhanya lapho kudingeka khona:
Ikhamera yevidiyo ene-transmitter yevidiyo kanye nepheya yemigqa ye-LED enikwe amandla omnotho ngepheya lamanje elikhawulela ukumelana (390 Ohms lilinye), kanye nesamukeli sokushintsha umsakazo, idla kuphela i-199 mA, uma ivuliwe, kusukela ngomzuzwana. Umthombo wamanje we-12-volt. Esimeni esivaliwe, kumodi yokulinda, kutholakala iswishi yomsakazo kuphela, esebenzisa i-standby kuphela engu-7,5 mA, encane kakhulu futhi efihliwe ngokuyisisekelo ngokumelene nesizinda sokulahlekelwa ekusetshenzisweni kwamamitha kunethiwekhi.
Amaphedi okushisa kagesi nawo awavuli mathupha. Kubo, i-transformer eyehlayo ixhunywe nge-thermostat elawulwa ngomsakazo, isilawuli kude esinezinzwa ezitholakala endlini. Ngakho uma sekufudumele kakade, isistimu yokushisisa izocisha ngokuzenzakalelayo futhi ivuleke kuphela lapho izinga lokushisa langaphandle lehla.
Ikhamera yevidiyo ikhethwe kukhamera engenafreyimu, kodwa ene-photosensitivity ephezulu kakhulu ye-0,0008 lux.
Kusuka ku-aerosol ngayimboza nge-polyurethane varnish ukuze kuvikelwe umkhathi kanye nezinguquko zomswakama, noma ngisho nemvula engenzeka.
I-antenna emboziwe nekhamera ngemva kokuvanisha, ukubuka kwangemuva. Ngezansi ungabona itheyiphu ebomvu engakasuswa, emboza abathintwayo besixhumi esikhulu:
Kukhamera yevidiyo, kwakudingeka ngiphinde ngigxilise i-lens ukuze isebenze endaweni eseduze, ebangeni elikhulu lika-15-30 cm.
Ingxenye efakiwe yezinto zokusebenza (enezintambo) endlini yebhokisi, ngaphambi kokuthumela sonke isakhiwo ku-attic:
Njengoba ubona, lapha "uphahla" lwebhokisi luqiniswa ngaphakathi futhi "luhlanganiswe" ngethusi, uma kwenzeka ikati linquma ukugxumela phezulu futhi linyathele "uphahla" lwendlu. Kunoma yikuphi, ngeke kube ne-tape eyanele lapha, ngisho noma i-anti-vandal-reinforced.
Ukuhlolwa kokugcina kumakati afuywayo, okukhanyisiwe nokudluliswa kwevidiyo, kubonise impumelelo eyamukelekayo yomqondo oqanjiwe:
1) NgeSiamese:
2) Nge-tricolor:
Isixhumanisi sevidiyo, yiqiniso, akusona isixazululo esigcwele se-HD, kodwa i-SD ye-analog evamile (640x480), kodwa ukulawula okufushane kungaphezu kokwanele. Awukho umsebenzi wokuhlola zonke izinwele; kubalulekile ukuqonda ukuthi into oyibukayo iyaphila.
Lwafika usuku lokufaka sonke isakhiwo endaweni yokulala, eyayiwuphahla oludala enqolobaneni encane eneziko lendawo. I-attic ibonakale inganakekelwa, ivele ifakwe izipikili futhi yilokho. Kwadingeka ngisebenzise udlawu ukuze ngisuse izinzipho ezingaba ngu-50 ezibekwe eduze komjikelezo weshidi ngalinye kwamabili e-gable sheathing.
Ngangilindele ukuthi ikati linamahloni futhi lizowubalekela ngokushesha umsindo “wokuhlinza izinsimbi” ophahleni. Kodwa yayingekho! Wangiphuthuma, egquma ngokuphelelwa yithemba, ehayiza futhi ezama ukulimaza uzipho. Ngokusobala wayeke walwa namakati endawo izikhathi ezingaphezu kwesisodwa futhi ezimpini wazitholela le ndawo yokukhosela. Lokhu akwaziwa.
Ngiyaqala ngqa ukubona umhume ongaka wekati elingaphansi. Lokhu kunothuli kakhulu, uboya bengilazi obudala, obuhlanganiswe endaweni eyisicaba. Kubonakala sengathi leli akulona ikati lokuqala elihlala lapho. Eduze kwakunenqwaba yezimpaphe zezinyoni, ngokusobala izinsalela zezilwane ezidliwe. Eceleni kukhona amaqoqo ama-cobwebs amadala namnyama, inqwaba yothuli, izimpaphe namathambo ezinyoni ezincane, ngokuvamile umbono ongathandeki futhi osabekayo:
Ngemva kokubeka indlu yekati ngokuzinza ngaphansi kophahla futhi ngaxhuma izintambo, ngafaka i-casing endala ngezikulufo ezintsha.
I-transmitter yevidiyo yahlelelwa ngokushesha ukuthi isuswe endaweni "ye-shading" enensimbi, ukuze kungabikho lutho oluzophazamisa igagasi lomsakazo elivele libuthakathaka kakhulu eligeleza egcekeni, futhi livela ocingweni, lingene ngefasitela elivuleka endlini, ukuze umamukeli ngemonitha. I-transmitter phambilini ibigoqwe ngokuncipha kokushisa eneziphetho ezivaliwe futhi yafakwa emlenzeni wensika ukuze kungabi bikho izici zesakhiwo ezizungeze i-antenna ebangeni elingu-1,5 - 2 Lambda. Esithombeni ungabona i-antenna egwegwile, bathi, kungani i-sloppy kangaka? Kamuva, kwadingeka ukuthi siphinde sivule i-pediment, futhi sivikele isidlulisi ngendlela ehlukile futhi sigobe i-antenna nge-engeli efanele, futhi ukuze sivikeleke emvuleni enethayo kanye nemvula yesichotho ngomoya, ohlale uwela ngokuqinile usuka ohlangothini olufanayo. Ngokucabangela izici ezimbili ngesikhathi esisodwa, i-coaxial feeder yayigobile, kodwa asikho isidingo sokuphindaphinda isithombe esifanayo.
Umfundi othanda ukwazi angase abone, kungani kudingeke ukuthi uvule i-attic futhi? Ngoba ngemva kokulinda izinsuku ezintathu futhi ngezikhathi ezithile ngivula uhlelo lokuqapha ividiyo, angikaze ngithole ikati endlini entsha. Mhlawumbe umane wesaba ukusondela noma ukubheka ngaphakathi. Mhlawumbe wezwa iphunga lamakati abanye abantu ebhokisini. Futhi cishe ikati alizange liqonde nokuthi lena yindlu enombhede futhi ungangena lapho ngokumane ushelele isivalo se-slot ngesiphongo sakho. Isizathu asaziwa.
Nganquma ukumyenga ngephunga lezibiliboco. Nokho, okungenani ngenxa yokujwayelana, makaqonde ukuthi ayikho ingozi ebhokisini, nokuthi kumnandi ngempela lapho. Bengizolala mina, kodwa ngidinga ukusebenza. 🙂
Ngokuvamile, ngemva kokuvula kabusha ukufinyelela ku-attic, ngaphambi kokungena ebhokisini kanye nasephasishi lebhokisi ngokwalo, kanye nasembhedeni, ngiphonsa ama-granules okudla ngephunga elisha.
Hurray, iqhinga elimnandi lisebenzile!
Ngemva kwesigamu sehora, into oyifunayo, ngokucophelela futhi ngezinyathelo ezincane, yathola umnyango wendlu, wayivakashela ngokugcwele (futhi izikhathi ezingaphezu kwesisodwa), idla zonke izinto ezinhle lapho.
(esithombeni manje kukhona imonitha ehlukile, enemisakazo eyakhelwe ngaphakathi kanye nemibhalo eluhlaza)
Ngakho-ke, ikati elingaphansi komhlaba manje selinayo "indlu" ene-Hi-Tech twist, futhi ngine-karma yami ngesenzo esihle, futhi ngaphezu kwalokho, ithuba lokuqapha ividiyo elawulwa ngaphandle, yini ekhona nokuthi kanjani. Kungakwazi ukuthwebula ukusakazwa kwevidiyo etholiwe futhi kuhlelwe ukusakazwa kwayo kunethiwekhi. Kungaba ikhamera yewebhu.
Kodwa njengoba kungekho lutho oluthakazelisa ngokuyisisekelo lapha, futhi okwesibili, asikho isidingo sokuphazamisa ikati, ngakho-ke akukho nhlangano yokubamba ngokusakazwa.
Kodwa awasekho amagundane, futhi lokhu nakanjani ukufaneleka komunye wethu, kanye naleli kati.
Insimu yethu kanye nensimu yomakhelwane bethu isisuswe ngokuphelele.
Ngakho ikati liwufanele ngokugcwele umbhede ohlanzekile, ofudumele nonokuthula ukuze liphumule kuwo.
Makahlale lapho isikhathi eside ngangokunokwenzeka, ngokunethezeka nokuthula.
Inhlanhla kuDeveli onamahloni onamehlo adabukileyo:
Source: www.habr.com