{"id":32496,"date":"2019-10-31T21:47:23","date_gmt":"2019-10-31T18:47:23","guid":{"rendered":"https:\/\/prohoster.info\/blog\/zapiski-iot-provajdera-podvodnye-kamni-oprosa-schetchikov-zhkh\/"},"modified":"2019-10-31T21:47:23","modified_gmt":"2019-10-31T18:47:23","slug":"zapiski-iot-provajdera-podvodnye-kamni-oprosa-schetchikov-zhkh","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/zapiski-iot-provajdera-podvodnye-kamni-oprosa-schetchikov-zhkh","title":{"rendered":"IoT-teenuse pakkuja m\u00e4rkmed. Mured kodumajapidamiste arvestite k\u00fcsitlustest","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Tere, austatud asjade interneti huvilised. Selles artiklis tahaksin taas r\u00e4\u00e4kida eluasemete haldamisest ja m\u00f5\u00f5teseadmete k\u00fcsitlusest.<\/p>\n<p>Perioodiliselt teatab j\u00e4rgmine suur telekomim\u00e4ngija, kuidas ta varsti sellele turule siseneb ja k\u00f5ik enda alla t\u00f5mbab. Iga kord selliste lugude puhul m\u00f5tlen: \"Poisid, edu teile!\"<br \/>\nTe isegi ei kujuta ette, kuhu te tungite. <\/p>\n<p>Kuna te m\u00f5istaksite probleemi skaala, r\u00e4\u00e4gin l\u00fchidalt meie kogemusest platvormi \"Tark Linn\" arendamisel. Just selle osa kohta, mis vastutab dispetcherimise eest.<\/p>\n<p><img decoding=\"async\" alt=\"IoT-teenuse pakkuja m\u00e4rkmed. Mured kodumajapidamiste arvestite k\u00fcsitlustest\" src=\"\/wp-content\/uploads\/2019\/04\/c608804a6b0898b8fb908c202f2ad984.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h3>\u00dcldine idee ja esimesed raskused<\/h3>\n<p>\nR\u00e4\u00e4gides mitte individuaalsetest m\u00f5\u00f5tmisseadmetest, vaid neist, mis asuvad kelderes, katlamajades ja ettev\u00f5tetes, on enamik neist n\u00fc\u00fcd varustatud telemeetri v\u00e4ljundiga. Harvem impulsi, sagedamini - RS-485\/232 v\u00f5i Ethernet. Tava j\u00e4rgi on k\u00f5ige \"kasumlikumad\" m\u00f5\u00f5teseadmed need, mis m\u00f5\u00f5davad soojust. Just nende dispetcherimise eest on esimesena valmis maksma.<br \/>\nOlen juba oma artiklis p\u00f5hjalikult k\u00e4sitlenud RS-485 erip\u00e4ra. L\u00fchidalt - see on lihtsalt andmete edastamise liides. Tegelikult - n\u00f5uded elektriliste impulsside ja sidekanali jaoks. Pakettide kirjeldus toimub \u00fchel tasemel k\u00f5rgemal, andmete edastamise standardis, mis t\u00f6\u00f6tab RS-485 peal. Ja mis standard see olema hakkab - see on tootja otsustada. Tihti Modbus, aga mitte tingimata. Ieven kui see on Modbus, v\u00f5ib see siiski olla veidi muudetud.<\/p>\n<p>Tegeliselt on iga m\u00f5\u00f5teseadmest vajalik oma k\u00fcsitluskava, mis oskab sellega \"r\u00e4\u00e4kida\" ja seda k\u00fcsitleda. See t\u00e4hendab, et dispetcherimise s\u00fcsteem on skriptide kogum iga eraldi arvesti jaoks. Andmebaas, kus k\u00f5ik see salvestatakse. Ja mingisugune kasutajaliides, kus saab koostada vajaliku aruande. <\/p>\n<p><img decoding=\"async\" alt=\"IoT-teenuse pakkuja m\u00e4rkmed. Mured kodumajapidamiste arvestite k\u00fcsitlustest\" src=\"\/wp-content\/uploads\/2019\/04\/19b77a5e63cb95b591f27b0521ca8fd1.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nSee ei n\u00e4e keeruline v\u00e4lja. T\u00f5de, nagu alati, peitub detailides.<\/p>\n<p>Alustame esimesest osast. <\/p>\n<h3>Skriptid <\/h3>\n<p>\nKuidas neid kirjutada? No, ilmselgelt, tuleb osta m\u00f5\u00f5teseade, selle seest lahti v\u00f5tta, \u00f5ppida, kuidas sellega suhelda ja integreerida see \u00fcldisse platvormi.<\/p>\n<p>Kahjuks katab see lahendus vaid osa meie vajadustest. Tavaliselt on populaarsetel arvestitel mitu p\u00f5lvkonda, ja skript iga p\u00f5lvkonna jaoks v\u00f5ib erineda. M\u00f5nikord veidi, m\u00f5nikord oluliselt. Ostes midagi, saad viimase p\u00f5lvkonna. Kuid abonendil on t\u00f5en\u00e4oliselt midagi vanemat. Seda ei m\u00fc\u00fcda enam poodides. Ja abonent ei vaheta arvesti. <\/p>\n<p>Sealt tuleb esimene probleem. Selliste skriptide kirjutamine on tihe seos tarkvaraarendajate ja maapealsete inseneride vahel. Me ostsime viimase p\u00f5lvkonna, kirjutasime mingi algse \u0161ablooni ja seej\u00e4rel kohandasime seda juba reaalses seadmes. Sellise tegemine laboris on v\u00f5imatu, ainult t\u00f6\u00f6tades elavate abonentidega.<\/p>\n<p>Meil kulus selle sideme loomisele palju aega. Praegu on algoritm v\u00e4lja t\u00f6\u00f6tatud. Algse \u0161ablooni pidevalt kohandati ja t\u00e4iendati vastavalt sellele, mida me oma praktikast kohtasime. Loomulikult teavitati abonenti, kui \u00e4kki tema arvesti osutus natuke \"eriliseks\". Kui selline seade ilmub, \u00fchendatakse see standardse skeemi j\u00e4rgi ja k\u00fcsitlus skripti kohandatakse jooksvalt. Integreerimise ajal t\u00f6\u00f6tab abonent tasuta. Teda teavitatakse, et ta elab testre\u017eiimis. Ise integreerimisprotsess on \u00fcsna ettearvamatu. Juhtub, et tuleb teha minimaalne muudatus. Juhtub keerulisem protsess, mis h\u00f5lmab objekti k\u00fclastamist, kirjanduse \u00fclevaatamist ja j\u00e4rjestikust takistuste \u00fcletamist.<\/p>\n<p>\u00dclesanne ei ole lihtne, kuid lahendatav. Tulemus - t\u00f6\u00f6tav skript. Mida rohkem skriptiraamatukogu on, seda lihtsam on elada.<\/p>\n<p>Teine probleem.<\/p>\n<h3>Tehnilised \u00fchenduskaardid<\/h3>\n<p>\nKuna te m\u00f5istaksite selle t\u00f6\u00f6 keerukust, toon n\u00e4ite. V\u00f5tame \u00e4\u00e4rmiselt populaarse soojusm\u00f5\u00f5turi VKT-7.<\/p>\n<p>Nimi iseenesest ei r\u00e4\u00e4gi meile veel millestki. VKT-7-l on mitu riistvaralist lahendust. Milline liides on tal sees?<\/p>\n<p><img decoding=\"async\" alt=\"IoT-teenuse pakkuja m\u00e4rkmed. Mured kodumajapidamiste arvestite k\u00fcsitlustest\" src=\"\/wp-content\/uploads\/2019\/04\/e1518b92e2ecfaa12e9e5d790dc7bd28.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nOn erinevaid variante. See v\u00f5ib olla v\u00e4ljund standardse DB-9 pistiku kaudu (see on RS-232). V\u00f5ib olla lihtsalt klemmiplokk RS-485 kontaktidega. V\u00f5ib isegi olla v\u00f5rgukaart RJ-45 (selle puhul pakitakse ModBus Ethernetisse). <\/p>\n<p>V\u00f5i ei pruugi olla midagi. Lihtsalt paljas m\u00f5\u00f5teseade. Sellele v\u00f5ib paigaldada liidesega v\u00e4ljundi, mis m\u00fc\u00fcakse tootja poolt eraldi ja maksab raha. Suurim probleem - selle paigaldamiseks on vajalik arvesti avamine ja pitsatide eemaldamine. See t\u00e4hendab, et selles protsessis osaleb teenusepakkuja organisatsioon. Teda teavitatakse, et pitsatid eemaldatakse, m\u00e4\u00e4ratakse p\u00e4ev ja meie insener koos teenusepakkuja esindajaga teeb vajalikud muudatused, peale mida arvesti taas pitsatatakse.<\/p>\n<p>S\u00f5ltuvalt paigaldatud liidest toimuvad edasised kohandused. N\u00e4iteks, otsustasime \u00fchendada m\u00f5\u00f5teseadmest juhtme kaudu. See on k\u00f5ige lihtsam variant, kui 100-meetrise kauguse raadiuses on meie l\u00fcliti, siis LoRa kasutamine oleks \u00fcleliigne. Lihtsam on kaabli kaudu meie v\u00f5rku, isolatsiooniga VLAN-i.<\/p>\n<p>RS-485\/232 jaoks on vajalik Etherneti konverter. Paljud meenutavad kohe MOXA-d, kuid see on kallis. Meie lahenduste jaoks oleme leidnud odavama Hiina variandi.<\/p>\n<p>Kui v\u00e4ljund on kohe Ethernet, siis konverterit ei ole vaja.<\/p>\n<p>K\u00fcsimus. Oletame, et paigaldame ise liidese v\u00e4ljundi. Kas saame endale elu lihtsamaks teha ja kohe igale poole Etherneti paigaldada?<\/p>\n<p>See ei ole alati v\u00f5imalik. Tuleb t\u00e4helepanu p\u00f6\u00f6rata korpuse ehitusele. Sellel ei pruugi olla vajalikke auke, et liides \u00f5igesti paigaldada. Ja m\u00f5\u00f5teseade, nagu me m\u00e4letame, asub meil keldris. V\u00f5i katlamajas. Seal on k\u00f5rge niiskus, tihedust ei tohi rikkuda. Korpuse lihvimine viiliga on halb idee. Parem on paigaldada midagi, mis algselt ei vaja suuri muudatusi. Tihti on RS-485 ainus lahendus.<\/p>\n<p>Edasi. Kas m\u00f5\u00f5teseade on \u00fchendatud garanteeritud toiteallikaga? Kui ei, siis t\u00f6\u00f6tab see patarei pealt. Sellises re\u017eiimis on see m\u00f5eldud k\u00e4sitsi k\u00fcsimiseks kord kuus kolmeks minutiks. Pidev p\u00f6\u00f6rdumine VK\u0422-7 poole t\u00fchjendab selle patarei. See t\u00e4hendab, et tuleb viia garanteeritud toide ja paigaldada pingemuundur.<\/p>\n<p>Iga m\u00f5\u00f5teseadme tootja toiteplokk on erinev. See v\u00f5ib olla v\u00e4listoiteplokk DIN-raami jaoks v\u00f5i sisse ehitatud muundur.<\/p>\n<p>Tuleb v\u00e4lja, et meie laos peab alati olema erinevate liideste ja toiteplokkide komplekt igasuguste m\u00f5\u00f5teseadmete jaoks. Nomenklatuur on seal muljetavaldav.<\/p>\n<p>Loomulikult maksab k\u00f5ik selle l\u00f5puks tellija. Kuid ta ei taha oodata kuud, kuni vajalik seade arrives. Ja tal on vaja hinnangut \u00fchendamiseks siin ja praegu. Seet\u00f5ttu lasub tehnoloogiline varu meie \u00f5lgadel.<\/p>\n<p>K\u00f5ik, mida ma kirjeldasin, koondub selgesse tehnilisse kaardisse \u00fchendamiseks, et insenerid kohtades ei arvaks, mis loomaga nad kohtuvad j\u00e4rgmises keldris ja mida neil on selle t\u00f6\u00f6ks vaja. <\/p>\n<p>Tehniline kaart on koos \u00fcldiste reeglitega \u00fchendamiseks. L\u00f5ppude l\u00f5puks pole m\u00f5\u00f5teseadet lihtsalt meie v\u00f5rku sisse l\u00fclitada, tuleb veel porti teenusesse lisada see VLAN, conduct diagnostics, teha katse k\u00fcsitlus. Kogu protsessi p\u00fc\u00fcame maksimaalselt automatiseerida, et vigu v\u00e4ltida ja mitte kaasata liigseid insenere.<\/p>\n<p>H\u00e4sti, oleme koostanud tehnilised kaardid, m\u00e4\u00e4ratlenud reeglid, automatiseerinud. Oleme seadnud logistika t\u00f6\u00f6le. <\/p>\n<h3>Kus veel peituvad allveekivid?<\/h3>\n<p>\nAndmed loetakse ja voolavad andmebaasi.<\/p>\n<p>Tellijale ei ole nende numbrite j\u00e4rgi ei soe ega k\u00fclm. Talle on vajalik aruanne. Soovitavalt sellisel kujul, nagu ta on harjunud. Veel parem, kui see on kohe arusaadavas aruandes, mille ta saab printida, allkirjastada ja esitada. Seega on vajalik lihtne ja arusaadav liides, mis n\u00e4itab teavet m\u00f5\u00f5teseadmest ja suudab automaatselt aruande koostada.<\/p>\n<p>Siin j\u00e4tkub meie loomaaed. Fakt on see, et aruande vorme on mitu. Oma olemuselt peegeldavad nad \u00fchte ja sama (tarbitud soojust), kuid erinevaid teid.<\/p>\n<p>M\u00f5ned tellijad esitavad aruande absoluutsetes v\u00e4\u00e4rtustes (st soojuse tarbimise veerus on toodud v\u00e4\u00e4rtused, alates m\u00f5\u00f5teseadmest), m\u00f5ned diffeentsides (see on siis, kui kirjutame tarbimise ajavahemikule ilma alustavate v\u00e4\u00e4rtuste viiteta). Sisuliselt kasutatakse mitte \u00fchtseid standardeid, vaid v\u00e4ljakujunenud praktikat. On olnud juhtumeid, kui tellijad n\u00e4evad k\u00f5iki neid v\u00e4\u00e4rtusi, mis neile on vajalikud (tarbitud soojust, soojusvedeliku mahud, temperatuuride erinevus), kuid veerud aruandes ei seisa \u00f5iges j\u00e4rjestuses.<br \/>\nSeega on j\u00e4rgmine samm \u2013 aruanne peab olema kohandatav. See t\u00e4hendab, et tellija valib ise, millises j\u00e4rjekorras see k\u00e4ib ja millised ressursid on tema dokumendis. <\/p>\n<p>Siin on huvitav moment. K\u00f5ik on h\u00e4sti, kui meie m\u00f5\u00f5teseade on \u00f5igesti paigaldatud. Kuid juhtub, et paigaldusorganisatsioon eksib ja paigaldab ITP vale ajaga. Oleme kohanud seadmeid, mis arvavad, et on 2010. aasta. Meie s\u00fcsteemis n\u00e4ib see olevat nulln\u00e4idud praegusele kuup\u00e4evale ja tegelik tarbimine oleks, kui valida 2010. aasta. Siin aitavad v\u00e4ga palju diferentid. See t\u00e4hendab, et me \u00fctleme, et eelmisel p\u00e4eval oli tarbimine nii palju.<\/p>\n<p>Tundub, et milleks sellised raskused? Kas on nii raske kellad korraldada? <\/p>\n<p>Just see VK\u0422-7 puhul toob see m\u00f5\u00f5teseadmest t\u00e4ieliku nullimise ja arhiivide kustutamise. <br \/>\nTellija peab t\u00f5estama ressursside seadusele, et ta paigaldas ITP mitte eile, vaid juba viie aasta eest.<\/p>\n<p>Ja l\u00f5puks, tordil kirsiks. <\/p>\n<h3>Sertifitseerimine<\/h3>\n<p>\nMeil on arvestusseade, meil on raport. Nende vahel on meie s\u00fcsteem, mis seda raportit genereerib. Kas usute sellesse?<\/p>\n<p>Mina usun k\u00fcll. Kuid kuidas t\u00f5estada, et meie sees ei muutu midagi, et me ei moonuta v\u00e4\u00e4rtusi? See on juba sertifitseerimise k\u00fcsimus. Uuringus\u00fcsteem peab olema sertifikaat, mis kinnitab selle erapooletust. K\u00f5ik suured s\u00fcsteemid, nagu LERS, \u042f \u042d\u043d\u0435\u0440\u0433\u0435\u0442\u0438\u043a ja teised, omavad sarnast sertifikaati. Meie saime selle ka, kuigi see maksab palju ja v\u00f5tab aega.<\/p>\n<p>Loomulikult on alati v\u00f5imalik nurka l\u00f5igata ja osta midagi valmiskujul. Kuid selle eest tuleb arendajale maksta. Ja arendaja v\u00f5ib k\u00fcsida mitte ainult sisenemiseks tasu, vaid ka kuutasu. See t\u00e4hendab, et me peame jagama temaga osa meie kasumist.<\/p>\n<h3>Miks k\u00f5ik see?<\/h3>\n<p>\nPeamine probleem ei seisne isegi selles. Oma s\u00fcsteemi arendamine on samuti v\u00e4ga kallis ja tunduvalt keerulisem. Siiski, see annab olulise eelise. Me m\u00f5istame selgelt, kuidas see t\u00f6\u00f6tab. Me saame seda h\u00f5lpsasti skaleerida ja modifitseerida, kui vajame. Klient saab t\u00e4ielikuma teenuse ning meie poolt on protsessi t\u00e4ielik kontroll.<\/p>\n<p>Just seet\u00f5ttu valisime me teise tee. Sellesse investeerisime \u00fche aasta oma arendajate ja v\u00e4litehniliste inseneride elust. Tulemuseks on suur selgus kogu ahela t\u00f6\u00f6protsessis.<\/p>\n<p>Tagasi vaadates m\u00f5istan, et saadud teadmistega ei oleks ma suutnud \u00f5igesti t\u00f5lgendada m\u00f5ne arvesti ebatavalist k\u00e4itumist. <\/p>\n<p>Lisaks sellele saab logistikas\u00fcsteemi p\u00f5hjal luua midagi suurt. Alarmid tarbimise \u00fcletamise kohta, avariiraportid. Meie l\u00e4hiajal on valmimas mobiilirakendus. <\/p>\n<p>Oleme l\u00e4inud veel kaugemale ja meie platvormile (muidu ei saaks seda nii nimetada) on lisatud v\u00f5imalus vastu v\u00f5tta elanike p\u00f6\u00f6rdumisi, hallata meie \"nutikaid ukses\u00fcsteeme\", samuti t\u00e4navavalgustuse kontroll ja veel m\u00f5ned projektid, millest ma pole veel r\u00e4\u00e4kinud.<\/p>\n<p><img decoding=\"async\" alt=\"IoT-teenuse pakkuja m\u00e4rkmed. Mured kodumajapidamiste arvestite k\u00fcsitlustest\" src=\"\/wp-content\/uploads\/2019\/04\/724d38b65d9859335ac69b2fcd0aaa14.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nK\u00f5ik see on keeruline, ajumurdmis- ja aegan\u00f5udev. Kuid tulemus on seda v\u00e4\u00e4rt. Klientidel on valmistoode k\u00f5ik-\u00fches. <\/p>\n<p>Iga operaator, kes plaanib siseneda korteriomanike turule, peab kindlasti sellele teele astuma. Kas nad suudavad sellega hakkama saada?<br \/>\nSee on k\u00fcsimus. Asi ei ole isegi rahas. Kuidas ma varem \u00fctlesin, on siin vajalik just v\u00e4lit\u00f6\u00f6 ja arenduse side. Mitte k\u00f5ik suured m\u00e4ngijad pole sellise l\u00e4henemisega harjunud. Kui teie arendajad istuvad Moskvas ja \u00fchendused tehakse Novosibirskis, siis venib teie valmistoote saamise aeg m\u00e4rkimisv\u00e4\u00e4rselt.<\/p>\n<p>Aeg n\u00e4itab, kes j\u00e4\u00e4b sellele turule ja kes \u00fctleb \u2014 las see minna! Kuid ma tean \u00fchte kindlat \u2014 ainult rahaga turuosa saavutamine ei \u00f5nnestu. See protsess n\u00f5uab mittestandardseid l\u00e4henemisi, h\u00e4id insenere, regulatsioonide s\u00fcvaanal\u00fc\u00fcsi, suhtlemist teenusepakkujatega ja klientidega ning pidevat probleemide avastamist ja \u00fcletamist. <\/p>\n<p><b>P. S.<\/b> Selles artiklis keskendusin teadlikult soojusele ega maini elektrit ega vett. Samuti kirjeldan ma kaabliga \u00fchendamist. Kui meil on impulsi v\u00e4ljund \u2014 siis on seal omad n\u00fcansid, nagu kohustuslikud kontrollid paigaldamise j\u00e4rel. V\u00f5ib juhtuda, et kaabliga ei ulatu, siis tuleb kasutada LoRaWANi. Kogu meie platvormi ja selle arendusprotsessi kirjeldamine \u00fches artiklis on lihtsalt v\u00f5imatu.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/449668\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0417\u0434\u0440\u0430\u0432\u0441\u0442\u0432\u0443\u0439\u0442\u0435, \u0443\u0432\u0430\u0436\u0430\u0435\u043c\u044b\u0435 \u043b\u044e\u0431\u0438\u0442\u0435\u043b\u0438 \u0418\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0430 \u0412\u0435\u0449\u0435\u0439. \u0412 \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u044f \u0431\u044b \u0441\u043d\u043e\u0432\u0430 \u0445\u043e\u0442\u0435\u043b \u043f\u043e\u0433\u043e\u0432\u043e\u0440\u0438\u0442\u044c \u043e \u0416\u041a\u0425 \u0438 \u043e\u043f\u0440\u043e\u0441\u0435 \u043f\u0440\u0438\u0431\u043e\u0440\u043e\u0432 \u0443\u0447\u0435\u0442\u0430. 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