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doc/bms-ch2.sgml@4b54d6f79d25 (annotated)

doc/bms-ch2.sgml

Mon, 11 May 2020 17:32:08 +0200

author
Michiel Broek <mbroek@mbse.eu>
date
Mon, 11 May 2020 17:32:08 +0200
changeset 671
4b54d6f79d25
parent 0
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Version 0.3.33 Added websockets framework. Added fermenter status messages to the websockets broadcast.

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1 <!--
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2 vim:syntax=docbksgml
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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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