Umdla kwi-sensors zomgangatho womoya kunye ne-volatile organic compound (VOC) ukufunyanwa kukhule kakhulu kwiminyaka yamuva nje, eqhutywa yinkxalabo malunga nempilo kunye nokuphila kakuhle kwiindawo zangaphakathi. Ngokukodwa, iimodeli ze-SGP30 kunye ne-CCS811 zizimise njengeebenchmarks kwiiprojekthi ezizisebenzelayo zasekhaya, izikhululo zemozulu zasekhaya, ukujonga imekobume, kunye ne-elektroniki yezemfundo.
Nangona kunjalo, kukho ukunqongophala okukhulu kokufikeleleka, okucacileyo, kunye nolwazi oluluncedo ngokwenene oluchaza, ukuthelekisa, kunye nokunceda wenze ukhetho olunolwazi phakathi kwezinzwa zimbini.
Kweli nqaku, sikuzisela olona lwazi lubanzi, oluthembekileyo, kunye nolwazi lwangoku kwi-SGP30 kunye ne-CCS811 VOC sensors. Uya kufumanisa ukuba basebenza njani, iimpawu zabo ezizodwa, usetyenziso olusebenzayo, iingcebiso zokusetyenziswa, imiba yobugcisa, kunye neenkcukacha ezingafumanekiyo kwiinkcazo zevenkile ezisisiseko. Ukuba ujonge isikhokelo esineenkcukacha zokufumana okuninzi kumlinganiselo womgangatho womoya, le yindawo yakho...
Kutheni kulinganiswa ii-VOCs kunye ne-eCO2 ngaphakathi?
Ubukho be-VOCs (i-volatile organic compounds) kwiindawo ezivaliweyo zihlala zihambelana neekhaphethi, ifenitshala, iimveliso zokucoca, izitovu, umsi kunye nezinye izinto zasekhaya. Ezi zinto, nangona zibonakala zingenabungozi, zinokuchaphazela impilo yabantu ixesha elide, zibangele iingxaki zokuphefumla, ukungezwani komzimba, okanye intloko ebuhlungu.
Ukulinganisa i-eCO2 (i-carbon dioxide elingana) kunye namanqanaba e-TVOC kubalulekile ekwenzeni izigqibo malunga nokuphuma komoya, ukuhlaziywa komoya, kunye nokuphucula induduzo yokusingqongileyo.
Ukwazisa i-SGP30 kunye ne-CCS811 zoluvo
I-SGP30 kunye ne-CCS811 zizivamvo zedijithali ezikwaziyo ukulinganisa ugxininiso lwe-VOC kunye nokubonelela ngoqikelelo lwe-eCO2, ukwenza kube lula ukujonga umgangatho womoya wangaphakathi kwiiprojekthi zombane kunye ne-IoT. Zombini iimodeli zenziwe ziinkampani ezaziwayo-kakuhle (i-Sensirion ye-SGP30 kunye ne-AMS ye-CCS811) kwaye iyahambelana nayo nayiphi na i-microcontroller yangoku enkosi kunxibelelwano lwabo lwedijithali.
- SGP30: Inzwa edityaniswe ngokupheleleyo ye-multi-pixel, ene-MOX (i-metal oxide) iteknoloji kunye ne-microcontroller yayo. Isetyenziswe ngokubanzi ukuchaneka kwayo kunye nokulula kokudibanisa.
- CCS811: Inzwa yedijithali kunye neteknoloji ye-MOX kunye noqikelelo lwe-eCO2, olusetyenziswa ngokubanzi kwiinkqubo zokusetyenziswa okuphantsi kunye nomgangatho obalaseleyo / umlinganiselo wexabiso.
Ukusebenza kunye neteknoloji ephantsi
Zombini abenzi boluvo zisebenzisa itekhnoloji ye-MOX, equkethe i-chip encinci eboshwe nge-metal oxide material (ngokuqhelekileyo i-tin dioxide). Xa ii-VOCs ezisemoyeni zidibana nomphezulu osebenzayo, ziguqula ukuxhathisa kombane, zivumela ukuxinana kweekhompawundi ezikhoyo ukuba kufakwe.
I-SGP30 imele ukudibanisa izinto ezininzi zoluvo kwiphakheji enye. Oku kukunika isakhono esikhulu sokuchonga iintsingiselo kunye nokuthelekisa umgangatho womoya ngendlela ezinzileyo. I-CCS811, ngakolunye uhlangothi, isebenzisa umgaqo ofanayo wokulinganisa kwaye iyakwazi ukubuyisela ngokuchanekileyo ukufundwa kwe-TVOC kunye ne-eCO2, nangona kukho imida ethile xa kuthelekiswa ne-SGP30.
Iimpawu eziphambili zobugcisa ze-SGP30
- Idijithali ngokupheleleyo, uxhumano lwe-I2C, oluhambelana ne-3.3V kunye ne-5V.
- Ukuchaneka komlinganiselo oqhelekileyo we-15% kumaxabiso abonisiwe.
- Iyakwazi ukufumanisa i-eCO2 yoxinaniso ukusuka kwi-0 ukuya kwi-60.000 ppm.
- Umlinganiselo we-TVOC ukusuka kwi-0 ukuya kwi-60.000 ppb (iinxalenye ngebhiliyoni nganye).
- Ayifuni ukolulwa kwewotshi ye-I2C, ukuququzelela unxibelelwano kunye ne-microcontroller esisiseko.
- Ibandakanya i-microcontroller yangaphakathi elawula ukondla, ukubala kunye nembuyekezo yemilinganiselo.
- Ivumela ulungelelwaniso olusekwe kwimithombo eyaziwayo, evumela ukuba amaxabiso athembeke ngakumbi afunyenwe kwixesha elide.
- Ibonelela ngembuyekezo yokufuma ekufundeni kakuhle, ifuna isivamvo sokufuma esizalanayo sangaphandle.
Iinkcukacha ezibalulekileyo kukuba umlinganiselo we-eCO2, kokubini kule nzwa kunye nakwi-CCS811, luqikelelo olusekelwe ngokuyintloko kugxininiso lwe-hydrogen (H2) efunyenweyo. Oko kukuthi, akusiyo umlinganiselo othe ngqo we-CO2, kodwa kunoko ixabiso elibaliweyo elingasetyenziselwa ukubeka iliso kwiindlela zokusingqongileyo kunye nokuthelekisa, kodwa akufanelekanga ukusetyenziswa kwebhubhoratri okanye uphando oluchanekileyo.
Izinto eziluncedo kunye nokusetyenziswa kwe-SGP30
- Ukuthembeka komlinganiselo kunye nokuzinza kubulela kwi-architecture yayo yeenzwa ezininzi.
- Ilungele ukubeka iliso umgangatho womoya kumakhaya, iiofisi, ii-cubicles zesikolo, iilebhu, njl.
- Isetyenziswe ngokubanzi kwiinkqubo ezizenzekelayo zasekhaya kunye nezikhululo zemozulu ze-DIY.
- Ukuhlanganiswa okulula kunye namaqonga afana neArduino, ESP32, iRaspberry Pi kunye nezinye ezifanayo.
- Amathala eencwadi esoftware afumaneka kwiilwimi ezininzi.
- Kubandakanya umzobo, imizekelo yoqhagamshelwano kunye nenkxaso kumaqonga obugcisa.
Umahluko ophambili phakathi kwe-SGP30 kunye neCCS811
Nangona zombini abenzi boluvo babelana ngomgaqo ofanayo osisiseko, kukho umahluko obalulekileyo ekufuneka uwugcine engqondweni xa ukhetha ukuba yeyiphi omawuyiphumeze kwiprojekthi yakho:
- I-SGP30 ayifuni iimpawu zokolula iwotshi., inqaku elenza lula kakhulu unxibelelwano kunye ne-microcontrollers ezingaluxhasi olu hlobo lonxibelelwano.
- I-CCS811 inokufuna ingqwalasela eyongezelelweyo yehardware ukuqinisekisa unxibelelwano lwe-I2C oluzinzileyo. nokuba usebenzisa iibhodi ezisisiseko okanye iinkqubo ezincinci.
- Ngokokuchaneka, zombini izinzwa zibonelela ngeempawu ezibonisayo kodwa ezithembekileyo zokubeka iliso kokusingqongileyo., kunye ne-SGP30 ngaphambili kancinci kuzinzo kunye nokulula kokulinganisa enkosi kwisilawuli sayo sangaphakathi.
- Kuzo zombini iimeko, ireferensi ye-eCO2 ibalwa kwaye ayihambelani nomlinganiselo wangempela we-CO2. ngokusekelwe kwi-optical okanye ii-chemical sensors ezikhethekileyo kule gesi.
Umlinganiselo kunye noluhlu lokulinganisa
Zombini izinzwa zibonelela nge-TVOC eneenkcukacha (kwiingxenye ngebhiliyoni nganye) kunye ne-eCO2 (kwiingxenye ngesigidi) amaxabiso. Uluhlu oluqhelekileyo kuzo zombini luphakathi kwe-0 kunye ne-60.000, nangona kwiimeko eziqhelekileyo zekhaya kunye neofisi, amaxabiso eTVOC ahlala erekhodwa kakuhle ngaphantsi kwe-1.000 ppb kunye ne-eCO2 amaxabiso aphakathi kwe-400 kunye ne-2.000 ppm.
Ukufezekisa ukuchaneka okuphezulu, ngakumbi ukuba kusetyenziselwa izifundo zokusingqongileyo, kubalulekile ukulinganisa inzwa usebenzisa imithombo eyaziwayo. Olu lungelelwaniso luhlawulela ukuphambuka okuncinci okuhambelana nenkqubo yokuvelisa kunye nokuguga kwenzwa.
Ukuhlanganiswa kweprojekthi kunye nokuhambelana
Zombini i-SGP30 kunye ne-CCS811 zidityanisiwe kwiibhodi zophuhliso ezivela kwiimpawu ezidumileyo ezifana ne-Adafruit, i-SparkFun, kunye nezinye, okwenza kube lula ukudibanisa kwiiprojekthi ze-DIY. Ngokuqhelekileyo zifakwe kwii-PCB ezincinci ezibandakanya i-voltage regulator kunye ne-logic level converter, evumela uxhulumaniso oluthe ngqo kwi-3.3V okanye i-5V microcontrollers.
Iprotocol ye-I2C ikhethwa kuzo zombini izinzwa, iqinisekisa ukuhambelana phantse naliphi na iqonga langoku. Ukongeza, uluntu olukhulu olubangqongileyo luqinisekisa amathala eencwadi asele ekulungele ukusetyenziswa kunye nemizekelo yekhowudi, kunye nezicwangciso ze-elektroniki kunye nezixhobo zokufundisa kumaqonga afana neGitHub okanye iFritzing.
Izinto ezilungileyo zembuyekezo yokufuma
Umba osoloko ungahoywa, kodwa obaluleke kakhulu, yimpembelelo yokufuma kwe-ambient kwimilinganiselo yeekhompawundi eziguquguqukayo zezinto eziphilayo. Ukufezekisa ukuchaneka okuphezulu kunokwenzeka, i-SGP30 ivumela imbuyekezo yokufuma ukuba isetwe ngokuthumela amaxabiso e-%RH (ukufuma okuhambelanayo) ngaphezulu kwebhasi ye-I2C.
Ngale ndlela, ukuba unenzwa eyongezelelweyo yokufuma, unokuhlengahlengisa imilinganiselo kwaye unciphise iimpazamo ezibangelwa kukwahluka emoyeni.
Unyino kunye neendlela ezilungileyo zokusetyenziswa
Kubalulekile ukukhumbula ukuba abenzi boluvo be-MOX, ngelixa begqwesileyo kwi-trending kunye ne-benchmarking, babonisa ukuguquguquka okuthile kwimilinganiselo. Ngoko ke, ukusetyenziswa okubalulekileyo, ukulinganiswa kwexesha elithile kuyimfuneko, kwaye ukuba injongo kukubeka iliso umgangatho womoya kwinqanaba lezesayensi okanye lolawulo, i-optical sensors ezinikele ngokukodwa ukulinganisa i-CO2 kufuneka isetyenziswe.
Ubuninzi bezicelo zolawulo lwasekhaya, ezemfundo, kunye nokusingqongileyo, zombini i-SGP30 kunye ne-CCS811 zibonelela ngesisombululo esisebenzayo, esinexabiso eliphantsi, kunye nesifikelelekayo ngokulula. Ukusetyenziswa kwamandla abo kuncinci kwaye banokusebenza i-24/7 kunye neemfuno zokugcinwa okuncinci.
Amaxwebhu kunye nezibonelelo ezikhoyo
Enye yamandla amakhulu aba babonisi luxwebhu olubanzi olukhoyo. Ukusuka kwizikhokelo zokunxibelelanisa, iincwadana zenyathelo ngenyathelo, imizekelo kwiilwimi ezahlukeneyo zokucwangcisa, kwizixhobo ezifana neFritzing okanye i-EagleCAD yokudala iPCB yakho. Iimveliso ezifana ne-Adafruit kunye ne-SparkFun zisebenze nzima ukwenza inkqubo yendalo ibe lula ukuyisebenzisa, ibonelela ngezifundo, iiforam zenkxaso, kunye neevidiyo zokubonisa.
Amathala eencwadi afumanekayo kwi-Arduino, ESP8266, ESP32, MicroPython, njl., ikuvumela ukuba usebenzise i-sensor ngokoqobo ukusuka kumzuzu wokuqala, kunye nemizekelo yokulinganisa ixesha lokwenyani, ukuloga kwedatha, kunye nomboniso womzobo. Konke oku kuvumela abaqalayo kunye neengcali ukuba baqhubele phambili ngokukhawuleza iiprojekthi zabo ngaphandle kokutyala ixesha elininzi kuqwalaselo lobugcisa.
Ngoobani aba luvo bacetyiswayo?
Ezi zivamvo zigqibelele kubantu abathanda izinto zombane, abenzi, abafundi, ootitshala, kunye neengcali zobunjineli bokusingqongileyo zikhangela isisombululo esilula sokubeka iliso kwiintsingiselo kunye nokwahluka komgangatho womoya wangaphakathi. Zikwafanelekile ukuba ufuna ukudibanisa inkqubo yesilumkiso (umzekelo, ukulawula ukungena komoya okuzenzekelayo), ukurekhoda idatha yendalo esingqongileyo, ukuqhuba izifundo zeklasi, okanye ukubeka iliso kwi-atmosphere eofisini.
Ngombulelo kubukhulu babo obuncinci kunye nokulula kokusetyenziswa, banokufakelwa ngobuqili naphi na, ukusuka kwibhokisi ye-elektroniki ukuya kwi-enclosure eprintiweyo ye-3D. Kwaye ngenxa yeendleko zabo eziphantsi, kuyenzeka ukufakela izinzwa ezininzi kwiindawo ezahlukeneyo ekhaya, eofisini, okanye kwishishini ukufumana imephu epheleleyo yokusingqongileyo.
Ukukhetha inzwa efanelekileyo yeprojekthi yakho
Nangona zombini izibonisi zoluvo zingaphezulu kokwaneleyo kwiiprojekthi ezininzi, ukukhetha eyona ifanelekileyo kuxhomekeke kwizinto ezininzi:
- Ukulula kunye nokomelela kokudibanisa: I-SGP30 ihlala ikhethwa kwiiprojekthi apho ukuthembeka okuphezulu kuyadingeka kwaye iingxaki nge-I2C zingafunwa.
- Ubukho kunye neendleko: I-CCS811 ithandwa kakhulu ngenxa yomlinganiselo wokusebenza kakuhle kwexabiso kunye nenani elikhulu leebhodi zomama ezihambelanayo ezikhoyo kwimarike.
- Ukuchaneka kunye neemfuno zokulinganisa: Ukuba ujonge ukuchaneka okuphezulu kunye nokukwazi ukubuyekeza iziphumo zokusingqongileyo, i-SGP30 igqame ngaphezu kweCCS811.
Zombini abenzi boluvo banokuhlalisana ngokugqibeleleyo kwinkqubo efanayo, besebenzisa amandla ngamnye ukwenza izifundo zokuthelekisa okanye ukuqinisekiswa okunqamlezayo.
Ekugqibeleni, zombini i-SGP30 kunye ne-CCS811 inokufikelela kwidemokhrasi ekujongeni umgangatho womoya, ukuququzelela iiprojekthi ezingaphuculi nje kuphela induduzo kodwa zinokuba nefuthe elihle kwimpilo yexesha elide. Ukuqonda iimpawu zayo, imida, kunye nesakhono ngundoqo wokufumana okuninzi kuyo, kwaye ngoku unayo yonke ingcaciso oyifunayo kwaye udibanise imodeli ekulungeleyo.
