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doc/bms-ch2.sgml@041af8a82d77 (annotated)

doc/bms-ch2.sgml

Fri, 28 Dec 2018 23:18:42 +0100

author
Michiel Broek <mbroek@mbse.eu>
date
Fri, 28 Dec 2018 23:18:42 +0100
changeset 155
041af8a82d77
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Some pH calculations cane use twice as much loops, probably because we have better float precision then the original pascal code. More variables to prevent html reads. Use predicted mash pH (the grist in demi water) to calculate the pH shift from the tapwater to the target pH. It's better but not right yet. Or it is right and brouwhulp is far off.

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1 <!--
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2 vim:syntax=docbksgml
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3 -->
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4
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5 <chapter id="design">
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6 <title>Architectuur.</title>
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7 <para>
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8 Het Brouwerij Management Systeem, afgekort <command>bms</command>, is een applicatie
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9 server die luistert naar MQTT berichten in de <command>mbv1.0</command> basis van het
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10 topic. Zie de <ulink url="https://en.wikipedia.org/wiki/MQTT">MQTT wiki</ulink> voor
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11 meer informatie over het MQTT protocol.
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12 </para>
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13
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14 <para>
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15 Als bron dienen onder andere vergistings controllers. Deze sturen MQTT berichten naar
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16 de MQTT server. Deze berichten komen dan in het bms systeem terecht die ze verwerkt.
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17 De controllers hoeven niet eerst bekend gemaakt te worden, het protocol is zo ontworpen
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18 dan controllers zichzelf aankondigen en opgenomen worden in de brouwerij. Dit gebeurt door
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19 het sturen van 'node' berichten. Ongeacht de functie van een controller, iedere controller
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20 stuurt 'node' berichten. Verder stuurt een vergisting controller een of meer
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21 gistkasten. Voer iedere kast worden er 'device' berichten gestuurd.
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22 </para>
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23
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24 <figure><title>BMS architectuur,</title>
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25 <mediaobject id="bms-flow-config">
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26 <imageobject>
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27 <imagedata fileref="bms-flow.png" scale="80" format="png">
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28 </imageobject>
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29 </mediaobject>
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30 </figure>
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31
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32 <para>
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33 Vanuit de bms applicatie kunnen er via de MQTT server ook commando's naar de controllers worden
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34 gestuurd. Van een vergisting kast kan bijvoorbeeld de temperatuur ingesteld worden, of kan
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35 de controller aan of uit gezet worden.
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36 </para>
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37
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38 </chapter>

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