Karaburan: Difference between revisions

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{{Project
{{Project
  |Name=Karaburan
  |Name=Karaburan
  |Picture=whyunopicture.png
  |Picture=karaburan.png
  |Omschrijving=Monitoring water quality
  |Omschrijving=Monitoring water quality
  |Status=Initializing
  |Status=Initializing
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== Introduction ==
== Introduction ==
Topics:
Topics:
* air quality sensors
** ammonia
** NOx
* water chemical analysis
* water chemical analysis
** nitrates
** nitrates
** ammonia
** ammonia
** dissolved oxygen
** dissolved oxygen
** sulfide/sulfate
** phosphates?
** salinity (chlorides?)
* water physical analysis
* water physical analysis
** temperature
** temperature
** clarity/turbidity -> investigate standard ways of measuring/expressing this
** clarity/turbidity -> investigate standard ways of measuring/expressing this
** conductivity
** conductivity/total dissolved solids
** water properties by light reflection, hyperspectral/polarity
** water properties by light reflection, hyperspectral/polarity
** depth?
* boat control
* boat control
** trajectory -> steering
** trajectory -> steering
** idea: interface with the remote control, not with the boat
** idea: find a boat with easily hackable remote control protocol
** idea: can we get sensor data over this link too, e.g. GPS?
* camera control
* camera control
* post-processing
* post-processing
** data presentation
** data presentation
*** video/photo stitching
*** time lapse view
*** map view of properties
* use cases
* use cases
** verify with domain experts, how to engage?
** slootview, under/above water
** slootview, under/above water
** minimum viable prototype
** minimum viable prototype
Line 31: Line 45:
** processing platform selection
** processing platform selection
** communication platform selection
** communication platform selection
== Air quality sensors ==
=== Nitrogen compounds in air ===
According to https://www.rivm.nl/stikstof/monitoren-advies-onderzoek/overzicht-stikstofmetingen/metingen-stikstof-in-de-lucht average (typical?) values of
* Ammonia (NH3): 6.7 ug/m3 (9.6 ppb)
* NOx: 27.3 ug/m3
* NO2: 18.6 ug/m3 (9.9 ppb)
(ppb-conversion using https://www.breeze-technologies.de/blog/air-pollution-how-to-convert-between-mgm3-%C2%B5gm3-ppm-ppb/ )
RIVM report on inexpensive nitrogen-in-air sensors: https://www.samenmeten.nl/sensoren-voor-no2
Conclusion: most sensors are not sensitive enough to be used in typical outdoor conditions, with perhaps one exception: alphasense NO2-B43F
== Water physical analysis ==
=== Turbidity / clarity ===
See https://en.wikipedia.org/wiki/Turbidity
Aliexpress sensor '''TS-300B''': https://nl.aliexpress.com/item/1005006732956937.html
Has a range 0 ~ 1000 ± 30 NTU
Order of magnitude for turbidity:
* Drinking water upper limit: '''4 NTU''' (European turbidity standard for drinking water)
* Ambient water: 10-150 NTU. The US state of Washington use a "background" value of '''50 NTU''' as reference.
(see https://en.wikipedia.org/wiki/Turbidity#Standards_and_test_methods )
So the Aliexpress sensor is mostly suited for very dirty water.
== Boat control ==
Typically the wireless link looks like this:
* 2.4 GHz working frequency
* 500m range
Interesting links:
* Flytec-2011 remote control https://nl.aliexpress.com/item/1005002984723718.html
* Replacement board for various boats with "18" in their type number: https://nl.aliexpress.com/item/1005006115484716.html
* DIY Multi-protocol module: https://github.com/pascallanger/DIY-Multiprotocol-TX-Module
== Use cases ==
material:
* https://www.youtube.com/watch?v=cMk0bGvIU1E
* https://iplo.nl/thema/water/oppervlaktewater/kaderrichtlijn-water
* kaartje: https://krw-nutrend.netlify.app/ -> 2 meetpunten op de reeuwijkse plassen, tijdresolutie is 1 jaar?
Useful distinction, typically used in documents/guidelines:
* chemical quality, what substances are present in the water?
* biological / ecology quality, what kind of living organisms live in the water?
=== Reeuwijkse plassen ===
See
* https://www.rijnland.net/wat-doet-rijnland/in-uw-buurt/reeuwijkse-plassen/ their stated goal: CLEAR WATER
* https://www.rijnland.net/regels-op-een-rij/subsidies-en-andere-financi%C3%ABle-bijdragen/
potential applications:
* slootview, inspect water sides over time
* underwater camera: detect invasive cray fish
* sample water properties at high spatial resolution, high time resolution
* early detection of indicators for cyanobacteria: temperature and nutrients

Latest revision as of 11:36, 29 April 2024

Project Karaburan
Karaburan.png
Monitoring water quality
Status Initializing
Contact bertrik
Last Update 2024-04-29

Introduction

Topics:

  • air quality sensors
    • ammonia
    • NOx
  • water chemical analysis
    • nitrates
    • ammonia
    • dissolved oxygen
    • sulfide/sulfate
    • phosphates?
    • salinity (chlorides?)
  • water physical analysis
    • temperature
    • clarity/turbidity -> investigate standard ways of measuring/expressing this
    • conductivity/total dissolved solids
    • water properties by light reflection, hyperspectral/polarity
    • depth?
  • boat control
    • trajectory -> steering
    • idea: interface with the remote control, not with the boat
    • idea: find a boat with easily hackable remote control protocol
    • idea: can we get sensor data over this link too, e.g. GPS?
  • camera control
  • post-processing
    • data presentation
      • video/photo stitching
      • time lapse view
      • map view of properties
  • use cases
    • verify with domain experts, how to engage?
    • slootview, under/above water
    • minimum viable prototype
    • high-res measurement by location, by time
  • materials
    • boat selection
    • processing platform selection
    • communication platform selection

Air quality sensors

Nitrogen compounds in air

According to https://www.rivm.nl/stikstof/monitoren-advies-onderzoek/overzicht-stikstofmetingen/metingen-stikstof-in-de-lucht average (typical?) values of

  • Ammonia (NH3): 6.7 ug/m3 (9.6 ppb)
  • NOx: 27.3 ug/m3
  • NO2: 18.6 ug/m3 (9.9 ppb)

(ppb-conversion using https://www.breeze-technologies.de/blog/air-pollution-how-to-convert-between-mgm3-%C2%B5gm3-ppm-ppb/ )

RIVM report on inexpensive nitrogen-in-air sensors: https://www.samenmeten.nl/sensoren-voor-no2 Conclusion: most sensors are not sensitive enough to be used in typical outdoor conditions, with perhaps one exception: alphasense NO2-B43F

Water physical analysis

Turbidity / clarity

See https://en.wikipedia.org/wiki/Turbidity

Aliexpress sensor TS-300B: https://nl.aliexpress.com/item/1005006732956937.html Has a range 0 ~ 1000 ± 30 NTU

Order of magnitude for turbidity:

  • Drinking water upper limit: 4 NTU (European turbidity standard for drinking water)
  • Ambient water: 10-150 NTU. The US state of Washington use a "background" value of 50 NTU as reference.

(see https://en.wikipedia.org/wiki/Turbidity#Standards_and_test_methods )

So the Aliexpress sensor is mostly suited for very dirty water.

Boat control

Typically the wireless link looks like this:

  • 2.4 GHz working frequency
  • 500m range

Interesting links:

Use cases

material:

Useful distinction, typically used in documents/guidelines:

  • chemical quality, what substances are present in the water?
  • biological / ecology quality, what kind of living organisms live in the water?

Reeuwijkse plassen

See

potential applications:

  • slootview, inspect water sides over time
  • underwater camera: detect invasive cray fish
  • sample water properties at high spatial resolution, high time resolution
  • early detection of indicators for cyanobacteria: temperature and nutrients
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