Smart and Autonomous parking.
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<body class="article">
<div id="header">
<h1>Smart &amp; Autonomous Parking</h1>
</div>
<div id="content">
<div id="preamble">
<div class="sectionbody">
<div class="paragraph">
<p><strong>Authors</strong>
Ουλής Ευάγγελος <a href="mailto:cs151051@uniwa.gr">cs151051@uniwa.gr</a>-
Ουλής Νικόλαος <a href="mailto:cs161079@uniwa.gr">cs161079@uniwa.gr</a>-
Κατσίμπρας Δρόσος <a href="mailto:cs131110@uniwa.gr">cs131110@uniwa.gr</a>-</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_smart_parking">1. Smart Parking</h2>
<div class="sectionbody">
<div class="paragraph">
<p><strong>Η υλοποίηση χωρίζεται σε 3 βασικά μέρη:</strong></p>
</div>
<div class="ulist">
<ul>
<li>
<p>Το 1ο μέρος αποτελείται από τα αντικείμενα του parking (sensors) τα οποία είναι
ένας αισθητήρας μέτρησης απόστασης (distance measurement sensor) σε κάθε θέση του πάρκινγκ, έτσι ώστε να ανιχνεύει για
μία συγκεκριμένη θέση έαν υπάρχει κάποιο όχημα, καθώς και μία συσκευή Arduino Uno.</p>
</li>
<li>
<p>Το 2ο μέρος αποτελείται από την συσκευή gateway σε Raspberry Pi1 η οποία διαβάζει στη σειριακή
της πληροφορία από το Arduino Uno, που κάνει sense την θέση, και στέλνει αυτή την πληροφορία
σε έναν web server με χρήση REST API.</p>
</li>
<li>
<p>Το 3o μέρος αποτελείται από τον client ο οποίος μέσω μίας web σελίδας βλέπει την κατάσταση
του parking, δηλαδή πόσες και ποιές θέσεις μέσα στον χώρο είναι ελεύθερες.</p>
</li>
</ul>
</div>
<div class="sect2">
<h3 id="_υλοποίηση_του_parking_sensor">1.1. Υλοποίηση του Parking Sensor</h3>
<div class="paragraph">
<p>Σε κάθε θέση parking υπάρχει ένας κόμβος απότελούμενος από ένα Arduino και έναν αισθητήρα
απόστασης (ultrasonic) εγκατεστημένος πάνω στο Arduino. Η λειτουργία αυτού βασίζεται στη
μέτρηση της απόστασης από τον κόμβο μέχρι κάποιο αντικείμενο (αυτοκίνητο) που εμποδίζει τη θέση του parking
και την εξαγωγή της κατάσταασης της αυτής της θέσης στη σειριακή θύρα του Arduino.</p>
</div>
<div class="openblock float-group">
<div class="content">
<div class="imageblock left">
<div class="content">
<img src="data:image/jpg;base64," alt="300" width="300">
</div>
<div class="title">Figure 1. Ο κόμβος αντιλαμβάνεται παρουσία οχήματος στη θέση.</div>
</div>
<div class="imageblock right">
<div class="content">
<img src="data:image/jpg;base64," alt="300" width="200">
</div>
<div class="title">Figure 2. Ο κόμβος αντιλαμβάνεται κενή θέση.</div>
</div>
</div>
</div>
<div class="paragraph">
<p>Ο κόμβος διαθέτει επιπλέον δύο leds ένα κόκκινο και ένα μπλε, σαν έξοδο της κατάστασης
της θέσης του parking για το οποίο είναι υπεύθυνος. Με κόκκινο χαρακτηρίζεται η θέση που είναι
δεσμευμένη από ένα όχημα και με μπλε η ελεύθερη θέση, όπως φαίνεται στις παραπάνω εικόνες.</p>
</div>
</div>
<div class="sect2">
<h3 id="_λειτουργία_του_parking_sensor">1.2. Λειτουργία του Parking Sensor</h3>
<div class="paragraph">
<p>Κάθε κόμβος στέλνει στην σειριακή του τον κωδικό της θέσης, με τον οποίο έχει προγραμματιστεί το Arduino,
και την κατάσταση του parking, κωδικοποιημένα με τον διαχωριστή "#". Για την κατάσταση του parking ορίζουμε
με "1" ότι η θέση είναι ελεύθεση και με "0" ότι η θέση είναι δεσμευμένη. Ο έλεγχος του sensor γίνεται κάθε
500ms.</p>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_autonomous_parking">2. Autonomous Parking</h2>
<div class="sectionbody">
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
<div class="title">Reminder</div>
SLOW SUCCESS BUILDS CHARACTER, FAST SUCCESS BUILDS EGO.
</td>
</tr>
</table>
</div>
</div>
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<div id="footer-text">
Last updated 2019-12-06 19:36:38 +0200
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