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<!DOCTYPE html>
<html class="no-js" lang="en">
<head>
<meta charset="utf-8"/>
<meta content="width=device-width,initial-scale=1" name="viewport"/>
<link href="https://jomjol.github.io/AI-on-the-edge-device-docs/Watermeter-specific-analog---digital-transition/" rel="canonical"/>
<link href="../rolling-installation/" rel="prev"/>
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<title>Analog/Digital Transition on Water Meters - AI on the Edge Device</title>
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<a class="md-skip" href="#analogdigital-transition-on-water-meters">1.
Skip to content
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AI on the Edge Device
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Analog/Digital Transition on Water Meters
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Getting Started
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Getting Started
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Welcome
</span>
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Installation
</span>
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<a class="md-nav__link" href="../initial-setup/">
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Initial Setup
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Hardware Compatibility
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Best Practice
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Frequently Asked Questions
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Configuration
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Configuration
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<ul class="md-nav__list" data-md-scrollfix="">
<li class="md-nav__item">
<a class="md-nav__link" href="../Reference-Image/">
<span class="md-ellipsis">
Reference Image
</span>
</a>
</li>
<li class="md-nav__item">
<a class="md-nav__link" href="../Alignment/">
<span class="md-ellipsis">
Alignment References
</span>
</a>
</li>
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<a class="md-nav__link" href="../ROI-Configuration/">
<span class="md-ellipsis">
ROIs (Regions of Interest)
</span>
</a>
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<a class="md-nav__link" href="../Configuration/">
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Graphical Configuration
</span>
</a>
</li>
<li class="md-nav__item">
<a class="md-nav__link" href="../Choosing-the-Model/">
<span class="md-ellipsis">
Model Selection
</span>
</a>
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<a class="md-nav__link" href="../ota/">
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Over-The-Air (OTA) Update
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Advanced
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Advanced
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Parameters
</span>
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</li>
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Integration into Home Assistant
</span>
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</li>
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<a class="md-nav__link" href="../External-LED/">
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External LED
</span>
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Data Logging
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<a class="md-nav__link" href="../rolling-installation/">
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Living on the Edge
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Analog/Digital Transition on Water Meters
</span>
<span class="md-nav__icon md-icon"></span>
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Analog/Digital Transition on Water Meters
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Table of contents
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<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix="">
<li class="md-nav__item">
<a class="md-nav__link" href="#normal-transition">1.1
<span class="md-ellipsis">
"Normal" transition
</span>
</a>
</li>
<li class="md-nav__item">
<a class="md-nav__link" href="#early-transition">1.2
<span class="md-ellipsis">
Early transition
</span>
</a>
</li>
<li class="md-nav__item">
<a class="md-nav__link" href="#inaccuracies-in-image-recognition">1.3
<span class="md-ellipsis">
Inaccuracies in image recognition
</span>
</a>
</li>
<li class="md-nav__item">
<a class="md-nav__link" href="#how-to-configure-for-my-meter-type">1.4
<span class="md-ellipsis">
How to configure for my meter type
</span>
</a>
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<li class="md-nav__item">
<a class="md-nav__link" href="../collect-new-images/">
<span class="md-ellipsis">
Collect images to improve the models
</span>
</a>
</li>
<li class="md-nav__item">
<a class="md-nav__link" href="../Learn-models-with-your-own-images/">
<span class="md-ellipsis">
Learn a model with your own images
</span>
</a>
</li>
<li class="md-nav__item">
<a class="md-nav__link" href="../Correction%20Algorithm/">
<span class="md-ellipsis">
Correction Algorithm
</span>
</a>
</li>
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<a class="md-nav__link" href="../Neural-Network-Types/">
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Neural Network Types
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Additional Information
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Notification about new Releases
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Prometheus/OpenMetrics
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Troubleshooting
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Troubleshooting
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<a class="md-nav__link" href="../Error-Codes/">
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Reduced webinterface (error codes)
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<a class="md-nav__link" href="../StatusLED-BlinkCodes/">
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Board status LED (blink codes)
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WLAN disconnect reasons
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Often observed issues
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<a class="md-nav__link" href="../Frequent-Reboots/">
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Basic hardware/config issues
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Demo mode
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Quick Links
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Quick Links
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<a class="md-nav__link" href="https://github.com/jomjol/AI-on-the-edge-device/releases">
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Releases
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<a class="md-nav__link" href="https://jomjol.github.io/AI-on-the-edge-device/index.html">
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Web Installer/Console
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Create an Issue
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API's
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API's
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REST API
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MQTT API
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Influx DB
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Development
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Development
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Build the Project
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<a class="md-nav__link" href="../Upload-files-by-script/">
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Scripted File Upload
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<a class="md-nav__link" href="#normal-transition">1.1
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"Normal" transition
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Early transition
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Inaccuracies in image recognition
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<h1 id="analogdigital-transition-on-water-meters"><span class="enumerate-headings-plugin enumerate-heading-plugin">1.</span> Analog/Digital Transition on Water Meters</h1>
<p>At first, for the most water meters the default configuration should be work. But the digit, especially the last digit differs in some devices.</p>
<h2 id="normal-transition"><span class="enumerate-headings-plugin enumerate-heading-plugin">1.1</span> "Normal" transition</h2>
<p>In most cases, the transition of the last digit starts when the analogue pointer is &gt; 9. </p>
<p>Often the last digit "hangs" a bit on this devices and comes not over zero. So it is not easy to see which digit is correct. In the first example 4 or still 3? (3 is correct).</p>
<p><img alt="image" src="https://user-images.githubusercontent.com/412645/209808192-5ff67e9f-ea7c-4d82-a8e4-54b3643c7e24.png" width="122"/>
<img alt="image" src="https://user-images.githubusercontent.com/412645/209808306-359cce2e-ec84-4390-82d1-6747e1ec056c.png" width="122"/></p>
<h2 id="early-transition"><span class="enumerate-headings-plugin enumerate-heading-plugin">1.2</span> Early transition</h2>
<p>Some units start the transition very early or run with the analogue pointer. In the third example, is it a 3 or a 2?</p>
<p><img alt="image" src="https://user-images.githubusercontent.com/412645/209807685-658fb9bb-648a-4779-bc30-805eadc12083.png" width="122"/>
<img alt="image" src="https://user-images.githubusercontent.com/412645/209808972-448bb6d0-7b7e-4030-abb2-9c966ceffc4a.png" width="122"/>
<img alt="image" src="https://user-images.githubusercontent.com/412645/209809116-d4acc5f2-ab5c-4304-9559-598b1dfc59c2.png" width="122"/></p>
<h2 id="inaccuracies-in-image-recognition"><span class="enumerate-headings-plugin enumerate-heading-plugin">1.3</span> Inaccuracies in image recognition</h2>
<p>The models for image recognition are good, but have inaccuracies in the range +/- 0.2. In order to obtain as many correct results as possible, a treatment is carried out in the post process in the range of 9.8-0.2 for the analogue pointer, which must start differently depending on the type of counter.</p>
<h2 id="how-to-configure-for-my-meter-type"><span class="enumerate-headings-plugin enumerate-heading-plugin">1.4</span> How to configure for my meter type</h2>
<p>If you have a devices with "normal" transition you should not have any issues. On devices with "early" transition, you can set the option <code>AnalogDigitalTransitionStart</code> to a value between 6 and 8.</p>
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