{"id":38728,"date":"2019-10-31T22:25:33","date_gmt":"2019-10-31T19:25:33","guid":{"rendered":"https:\/\/prohoster.info\/blog\/poddelnye-ds18b20-waterproof-chto-delat\/"},"modified":"2019-10-31T22:25:33","modified_gmt":"2019-10-31T19:25:33","slug":"poddelnye-ds18b20-waterproof-chto-delat","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/poddelnye-ds18b20-waterproof-chto-delat","title":{"rendered":"Vale DS18B20 veekindlad: mida teha?","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Tere! K\u00e4esolevas artiklis k\u00e4sitletakse valeandurite probleemi, olemasolevate seadmete piiranguid, mis neid andureid kasutavad, ja lahendust sellele probleemile.<\/p>\n

\"Vale
\nAllikas: ali-trends.ru<\/i><\/p>\n

Valeanduritest on varem kirjutatud ka siin<\/a><\/noindex>. Iseloomulikud erinevused valeandurite ja originaali vahel:<\/p>\n

    \n
  1. Andur, isegi otse\u00fchenduses, reageerib parasiittoite re\u017eiimis ebamugavalt, vaheldumisi.<\/li>\n
  2. Parasiittoite re\u017eiimis taastub k\u00f5rge tase liiga kaua (saab m\u00f5\u00f5ta mikrokontrolleri v\u00f5i vaadata oskoogrammi).<\/li>\n
  3. Voogude tarbimine on oluliselt k\u00f5rgem kui mitmed mikroamprid (GND ja VCC miinus, DQ l\u00e4bi mikroampermeetri +5 volti).<\/li>\n
  4. P\u00e4rast nimekirja koostamise protseduuri (0xF0) ei reageeri andurid kommandile skriptpadjast lugemiseks (0xBE).<\/li>\n
  5. Toide antud ilman k\u00e4sklust m\u00f5\u00f5ta temperatuur, mis on loetud skriptpadjast, erineb 85,0 kraadist.<\/li>\n
  6. Skriptpadja v\u00e4\u00e4rtused positsioonidel 5 ja 7 ei vasta 0xFF ja 0x10.<\/li>\n
  7. Temperatuuriv\u00e4\u00e4rtused (esimesed kaks positsiooni skriptpadjas), mis loeti p\u00e4rast esimest toite sisse l\u00fclitamist ja enne m\u00f5\u00f5tmissoovide edastamist, tagastavad eelneva v\u00e4\u00e4rtuse, mitte 50 05 (85,0 kraadi).<\/li>\n<\/ol>\n

    \n<\/a><\/noindex>
    \nKahjuks mul ei ole oskofigraafi ja katse seadmeks oli GPS-j\u00e4lgija Galileosky BaseBlock Lite. <\/p>\n

    Andurid soetati erinevatelt m\u00fc\u00fcjatelt ning ainult \u00fcks partiidest t\u00f6\u00f6tas parasiittoites. Kokku osteti 5 partiid, iga\u00fches 50 t\u00fckki.
    \n\u00dclej\u00e4\u00e4nud ei t\u00f6\u00f6tanud parasiittoites \u00fcldse. Terminal ei paku anduri jaoks v\u00e4list toiteallikat, ja s\u00fcsteemi paigaldamine autole tuleb maksimaalselt lihtsustada.<\/p>\n

    Probleemi lahendus<\/h2>\n

    \nNii et andurid on soetatud, kuid ainult \u00fcks partii t\u00f6\u00f6tas korralikult ja uue partii tellimine ning arutamine v\u00f5taks m\u00e4rkimisv\u00e4\u00e4rselt aega ning tooks kaasa \u00fclej\u00e4\u00e4ke. Seet\u00f5ttu tuli probleemi lahendada ise.<\/p>\n

    Kuna kasutatakse ainult kaht juhtme skeemi, on vajalik korraldada anduri toide signaalijuhtmest, seega organiseerida parasiittoitmine. Ma organiseerisin parasiittoite j\u00e4rgmise skeemi j\u00e4rgi:<\/p>\n

    \"Vale
    \n
    \nSelles skeemis on paranenud parasiitsete toiteallikate t\u00f6\u00f6, kuid samal ajal on j\u00e4etud v\u00f5imalus \u00fchendada v\u00e4line toiteallikas. Sellega koos muutub veidi ka \u00fchendusskeem: parasiitsete toiteallikate kaudu \u00fchendamisel kasutatakse juhet Vcc. ei kasutata<\/u>.<\/p>\n

    P\u00e4rast skeemi monteerimist avastus sensor terminaliga kondensaatori mahutavusega 1 \u00b5F. Massiliseks kasutusele v\u00f5tmiseks projekteeriti ja telliti paneelplaadid parasiitsete toiteallikatega:<\/p>\n

    \"Vale
    \n
    \nHuvitav moment:<\/b> sensorite hermeetiliseks sulgemiseks v\u00f5ivad tootjad kasutada termokleebist v\u00f5i silikooni. Esimesel juhul saab kesta kuumutada, sensor v\u00e4lja v\u00f5tta, plaadi sisse paigaldada, tagasi kesta panna ja veel kord termokleebisega t\u00e4ita. Teisel juhul nii ei saa ja plaati tuli jootma sensorile l\u00e4hedale, t\u00e4ita termokleebisega ja panna peale kuumuskaitset, mille tulemusena see v\u00e4lja n\u00e4eb selline:<\/p>\n

    \"Vale
    \n<\/p>\n

    Kokkuv\u00f5te<\/h2>\n

    \nSiin tahaksin kutsuda seadmete tootjaid arvestama seda momenti oma toodetes, ning m\u00fc\u00fcjaid kontrollima sensoreid enne m\u00fc\u00fcki v\u00f5i mitte tegelema tarnijatega, kui nad tarnivad v\u00f5ltsitud sensoreid, ning kasutajaid - k\u00e4sitlema seda teemat kommentaarides, kirjade v\u00f5i p\u00f6\u00f6rdumiste kaudu.
    \n
    Allikas:     habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

    \u0414\u043e\u0431\u0440\u043e\u0433\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u0441\u0443\u0442\u043e\u043a! \u0412 \u0434\u0430\u043d\u043d\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u043e\u0442\u0440\u0430\u0436\u0435\u043d\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u043e\u0434\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u0434\u0430\u0442\u0447\u0438\u043a\u043e\u0432, \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 \u044d\u0442\u0438 \u0434\u0430\u0442\u0447\u0438\u043a\u0438 \u0438 \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u0434\u0430\u043d\u043d\u043e\u0439 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b. \u0418\u0441\u0442\u043e\u0447\u043d\u0438\u043a: ali-trends.ru \u0414\u043e \u043c\u0435\u043d\u044f \u043e \u043f\u043e\u0434\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u0434\u0430\u0442\u0447\u0438\u043a\u0430\u0445 \u043f\u0438\u0441\u0430\u043b\u043e\u0441\u044c \u0435\u0449\u0435 \u0438 \u0437\u0434\u0435\u0441\u044c. \u0425\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u043d\u044b\u0435 \u043e\u0442\u043b\u0438\u0447\u0438\u044f \u043f\u043e\u0434\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u0434\u0430\u0442\u0447\u0438\u043a\u043e\u0432 \u043e\u0442 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b\u0430: \u0414\u0430\u0442\u0447\u0438\u043a, \u0434\u0430\u0436\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u044b\u0439 \u0432 \u043d\u0435\u043f\u043e\u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0439 \u0431\u043b\u0438\u0437\u043e\u0441\u0442\u0438, \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u043f\u0430\u0440\u0430\u0437\u0438\u0442\u043d\u043e\u0433\u043e \u043f\u0438\u0442\u0430\u043d\u0438\u044f \u043e\u0442\u0432\u0435\u0447\u0430\u0435\u0442 \u043d\u0435\u0443\u0432\u0435\u0440\u0435\u043d\u043d\u043e, \u0447\u0435\u0440\u0435\u0437 \u0440\u0430\u0437. \u0412 \u0440\u0435\u0436\u0438\u043c\u0435 \u043f\u0430\u0440\u0430\u0437\u0438\u0442\u043d\u043e\u0433\u043e \u043f\u0438\u0442\u0430\u043d\u0438\u044f […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":29052,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-38728","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47V\u00f5ltsitud DS18B20 veekindlad: mida teha? 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