2018-02-14T20:05:23Z

Nero2401:

[[File:AT_LebMin_Sensor_918028_2017-12-29_Wartung_IMAG0555.jpg|thumbnail|right|6 Jahre nach der Installation: Wien-Zentrum, Mark 2.3l Lightmeter Sensor am 29. Dezember 2017, GW]]
[[File:At Lebmin 2 Sensor April 2016 IMAG1258.jpg|thumbnail|right|2 Jahre Niederschlag in Wien-Zentrum: Mark 2.3l Lightmeter Sensor vor der Reinigung bei der Wartung am 10. April 2016]]

=Metadata=
'''Koordinaten:'''<br>
48° 12' 33,35" N <br>
16° 22' 54,32" O <br>
209 m Höhe<br>
<br>
'''Sensor:'''<br>
Mark 2.3L, S/N ....028<br>

Liefert Daten seit dem 9. Aug. 2011. ; validiert --[[Benutzer:GuentherWuchterl|GuentherWuchterl]] 19:35, 30. Aug. 2011 (UTC)
<br>
--[[Benutzer:Nero2401|Nero2401]] 19:36, 30. Aug. 2011 (UTC)

Nahe Wetterstation (wunderground) [https://www.wunderground.com/personal-weather-station/dashboard?ID=IWIEN75 Wetterstation Wien Dominikanerbastei (Wunderground)]

=Sensor ID Log=

2017-12-29 918028 Sensor OK; Kabelverlängerung gebrochen;
2017-06-28 918028
2016-12-31 918028
2015-12-31 918028

2014-12-12 918028
2014-12-01 918020
2014-08-28 918028
2011-12-31 918028
2010-03-27 918022

=AT_LebMin_2 - Lightrouter, Mark 2.3l =

Station: AT_LebMin Sensor ID: 918028
ab 8. August 2011

== Re-Installation, 14. Feb. 2018 ==

15:45 - 16:45

* Gebrochenes USB-Kabel ersetzt plus verlängert --> kein frei fliegendes LM-Kabel mehr.
* Sensor trocken abgewischt.
* Lightrouter war mit anderem Sensor (ID 918020) von 26. Jan. bis 14. Feb. im Testbetrieb auf meinem Schreibtisch. (Achtung, diese Daten liegen auch am Stick.)
* Keine Zeitschaltuhr installiert! Daher regelmäßigen Software-Reboot eingerichtet.
* Automatische Statusupdates eingerichtet, siehe [[KuffnerLocalLightServer_-_KLLS|KLLS]]

--[[User:Nero2401|Nero2401]] ([[User talk:Nero2401|talk]]) 17:19, 14 February 2018 (CET)

== Datenabholung 29. Dez. 2017 ==

14:50 - 16:15

* Keine Aufzeichnung seit Juni unmittelbar nach der Stationswartung - Nachtest hätte das erkennen können, aber wegen Zeitdruck ist er nicht erfolgt;
* Station OK; Lightmeter OK;
* USB-Kabelverlängerung gebrochen --> USB Verlängerung ersetzen (entlasten)!

--[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 15:54, 29 December 2017 (CET)

== Kontrolle 30. Juni 2017 ==

Daten vollständig, Zeit OK; geplanter Stationsaustausch wird aufgeschoben.

WLAN-UMTS-Station leuchtet;

Zeit offenbar über WLAN synchoinisert; --[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 17:14, 30 June 2017 (CEST)

== Kontrolle 8. April 2016==

FL+GW; Sensor kontrolliert; gesäubert; Foto vorher/nachher; Panorama; Belagprobe archiviert;

Netzverbinung hergestellt; (UMTS-Verbindung war wieder aus);
Versuch Dunkelstrom zu messen scheitert an schlechter Abdeckung (Stange, Blitzableiter und Kabel das horizontal wegführt); Abdeckung die Kabel und Blitzableiter ausnimmt erforderlich.

Minimum der erreichten counts etwa 3400, aber eindeutig noch Lichtsignal; In jedem Fall irrelevant da typische niedrige Nachtwerte bei 30 000 counts liegen.

--[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 12:10, 12 April 2016 (CEST)

== Kontrolle 22. Jan. 2016 ==

Die Daten von 2015 sind komplett und auch alles seit Anfang 2016.

Der LightRouter ist gelaufen und hat aufgezeichnet. Nur der UMTS-WLAN Router war auf "Standby". Router aus, Daten kopiert,
2014 und 2015 auf dem Router gelöscht damit er nicht voll wird.

UMTS-Router Einschalten; Warten auf WLAN; Router Starten;
Heartbeat; alles scheint OK.

Zeitsynchronisierung führt zu ca 2 Tage Sprung: auf 14:20 folgt 12:10

Der "Ausfall" vom 15. August war nur ein Verbindungsverlust. Daten wurden weiter gewonnen.

--[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 22:51, 23 February 2016 (CET)

'''15. August 2015''' - Ausfall. Vermutlich Speicher voll oder UMTS Kontingent zu erneuern!

==Kalibration 28./29. August==
[[File:Kali_LEBMIN.png|thumb|Kalibration erstellt am 1.9.2011]]

Kalibration Lebensministerium neue Station.

===Log:===

In [4]: x=lies_Verzeichnis('/home/lightmeter1/Desktop/LIGHT/atlebmin2011-08-30/selected/', Datenschritt=3, Format="Lightrouter");
In [5]: x.Observer.elev=209; x.Observer.lat="48:12:33.35"; x.Observer.long="16:22:54.32"; # LEBmin
In [6]: x.plot_NatLight(); x.plot_Mond_GR_Lux_h_extinction()
In [63]: ssh1=(x.Sunheight_deg_from_JD(x.JD)>30)|((x.Sunheight_deg_from_JD(x.JD)<0)&(x.Sunheight_deg_from_JD(x.JD)>-18))
In [64]: sjd6=(x.JD>mx.DateTime.DateTime(2011,8,28,14,7,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,28,16,43,0).jdn)
In [65]: sjd5=(x.JD>mx.DateTime.DateTime(2011,8,28,18,11,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,28,18,30,0).jdn)
In [66]: sjd4=(x.JD>mx.DateTime.DateTime(2011,8,28,7,57,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,28,9,21,0).jdn)
In [68]: sjd2=(x.JD>mx.DateTime.DateTime(2011,8,29,5,19,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,29,5,59,0).jdn)
In [69]: sjd1=(x.JD>mx.DateTime.DateTime(2011,8,29,7,13,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,29,7,46,0).jdn)
In [70]: sjd7=(x.JD>mx.DateTime.DateTime(2011,8,29,8,07,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,29,8,30,0).jdn)
In [71]: sjd8=(x.JD>mx.DateTime.DateTime(2011,8,29,10,39,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,29,11,10,0).jdn)
In [86]: sjd3=(x.JD>mx.DateTime.DateTime(2011,8,29,2,40,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,29,3,20,0).jdn)
In [87]: SELECT=(sjd1|sjd2|sjd3|sjd4|sjd5|sjd6|sjd7|sjd8)&ssh1
In [88]: x.fit_em1_to_natLight(JD_select=SELECT, Lux_range=[0.001,300000]);
Fit: a,b,c,x0,d,: 2.501e+05,3.681e-03,3.637e-06,-1.094e-02,4.075e-03, (res2/(N-n-1))^1/2 = 0.078 ,N=5138,n= 5
In [89]: a,b,c,x0,d= 2.501e+05,3.681e-03,3.637e-06,-1.094e-02,4.075e-03
In [90]: execfile("draw_all_plots.py")
In [91]: x.plot_Sunlight_Watt_per_square_meter_from_JD_DM(surface_pressure=991.0, T_dew_C=15.0, factor=110.9, c='c', marker=',' , linestyle=':')
In [92]: legend(prop=matplotlib.font_manager.FontProperties(size='small'),loc='center left')
In [93]: x.set_simple_time_axis_format()

'''a , b , c , x0 , d = 2.501e+05 , 3.681e-03 , 3.637e-06 , -1.094e-02 , 4.075e-03'''

--[[Benutzer:Nero2401|Nero2401]] 22:01, 1. Sep. 2011 (UTC)

==22.August Abenddämmerung==

In [128]: SJD1=(X.JD > mx.DateTime.DateTime(2011,8,22,14,0,0).jdn) & (X.JD < mx.DateTime.DateTime (2011,8,24,19,10,0).jdn)
In [129]: SSH=(X.Sunheight_deg_from_JD(X.JD)>30)|((X.Sunheight_deg_from_JD(X.JD)<-4)&(X.Sunheight_deg_from_JD(X.JD)>-18))
In [130]: SJD=(SJD1)&SSH
In [131]: X.fit_em1_to_natLight(JD_select=SJD, Lux_range=[0.01,300000],type='em1c0T')
Fit: a,b,c,x0,d,: 2.630e+05,2.307e-03,5.728e-06,-5.280e-02,5.248e-03, (res2/(N-n-1))^1/2 = 0.0529 ,N=5900,n= 5
Out[131]: (array([ 2.63024701e+05, 2.30669604e-03, 5.72755715e-06, -5.27981786e-02, 5.24831315e-03]), 1)
In [132]: clf()
In [133]: a,b,c,x0,d=2.630e+05,2.307e-03,5.728e-06,-5.280e-02,5.248e-03
In [134]: X.plot_em1c0T(a,b,c,x0,d,marker=',',color='g')
In [135]: X.plot_em1T(a,b,c,d,marker=',',color='k')
In [136]: X.plot_em1c0T(a,b,c,x0,d,marker=',',color='r', JD_select=SJD)
In [137]: X.plot_NatLight(); X.plot_Mond_GR_Lux_h_extinction()
In [138]: X.plot_em1T(a,b,c,d,marker=',',color='k')

= AT_Lebensministerium_1, Mark 2.3 =
'''Sensor ID: 908065

... bis 2011-08-07'''

==Bei Auswertung zu Beachten==
In der Nacht von 26. -> 27. März '11 erfolgt die Sommerzeitumstellung. Davor: timezone=1, danach timezone=2.

==Kalibration Ende April '11==
[[File:Kali_LebMin_april11.png|thumb|Zur Anwendbarkeit dieser Kalibration im März. Kalibration by [[Benutzer:GuentherWuchterl|GuentherWuchterl]] ]]

Kalibration April

===Log:===

a,b,c,x0,d = 1.206e+05,3.493e-02,1.393e-07,-1.164e-02,5.056e-03# Lebensmini cal April 2011,
a,b,c,x0,d = 1.206e+05,3.493e-02,1.2898e-09,-1.164e-02,5.056e-03# Lebensmini cal April 2011, f=108

==> beste und mondschwach , Mittagsvariation minimiert

SJD1=(X.JD > mx.DateTime.DateTime(2011,4,22,0,0).jdn) & (X.JD < mx.DateTime.DateTime(2011,4,24,0,00).jdn)
SSH=(X.Sunheight_deg_from_JD(X.JD)>35)|((X.Sunheight_deg_from_JD(X.JD)<0)&(X.Sunheight_deg_from_JD(X.JD)>-18))
SJD=(SJD1)&SSH
X.fit_em1_to_natLight(JD_select=SJD, Lux_range=[0.01,300000],type='em1c0T',time_correction_seconds=0)

a,b,c,x0,d,: 1.206e+05,3.493e-02,1.393e-07,-1.164e-02,5.056e-03, (res2/(N-n-1))^1/2 = 0.107 ,N=67186,n= 5

X.plot_Sunlight_Watt_per_square_meter_from_JD_DM(surface_pressure=1013.0,T_dew_C=4.0,factor=110,c='c',marker=',',linestyle=':')

'''Wetterquelle:''' Weather underground 1030 Wien
http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=IWIENWIE4&month=4&day=23&year=2011

a,b,c,x0,d = 1.206e+05,3.493e-02,1.393e-07,-1.164e-02,5.056e-03# Lebensmini cal April 2011,
a,b,c,x0,d = 1.206e+05,3.493e-02,1.2898e-09,-1.164e-02,5.056e-03# Lebensmini cal April 2011, f=108

Halbschaltung (bei den perfekten Kal-Beindungen): 1.-0.024/0.026 Out[53]: 0.0769

'''Log:'''
import os
os.chdir('/home/ke/Desktop/GW/Licht/python')
from Luxmeterdaten import *
import mx.DateTime

X=Luxmeterdaten('/home/ke/Desktop/GW/Licht/WienKartierung/Monitor Netz/L0xx_Lebensministerium/AT_VIENNA_1_2011_03_17_15_06.csv' ,timezone=1, Datenschritt=1)
X.Observer.long=" 16:22:54.12"; X.Observer.lat=" 48:12:33.72"; X.Observer.elev=209 # Lebensministerium
X.Berechne_Sonne();
X.Berechne_Mond();
a,b,c,x0,d = 1.206e+05,3.493e-02,1.393e-07,-1.164e-02,5.056e-03# Lebensmini cal April 2011, (res2/(N-n-1))^1/2 = 0.107 ,N=67186,n= 5
a,b,c,x0,d = 1.206e+05,3.493e-02,1.2898e-09,-1.164e-02,5.056e-03# Lebensmini W/m2 cal April 2011, f=108
Schön und wenig Monschein
SJD1=(X.JD > mx.DateTime.DateTime(2011,4,20,3,30).jdn) & (X.JD < mx.DateTime.DateTime(2011,4,24,0,00).jdn)
niedrigste Mittagsvariation
SJD1=(X.JD > mx.DateTime.DateTime(2011,4,22,0,0).jdn) & (X.JD < mx.DateTime.DateTime(2011,4,24,0,00).jdn)

SSH=(X.Sunheight_deg_from_JD(X.JD)>35)|((X.Sunheight_deg_from_JD(X.JD)<0)&(X.Sunheight_deg_from_JD(X.JD)>-18))
SJD=(SJD1)&SSH
FIT=X.fit_em1_to_natLight(JD_select=SJD, Lux_range=[0.01,300000],type='em1c0T',time_correction_seconds=0)

figure(3); clf()
X.plot_NatLight(); X.plot_Mond_GR_Lux_h_extinction()
X.plot_em1c0T(a,b,c,x0,d,marker=',',color='g')
X.plot_em1T(a,b,c,d,marker=',',color='k')
X.plot_em1T(a,b,c,d,marker=',',color='r', JD_select=SJD)

X.plot_Sunlight_Watt_per_square_meter_from_JD_DM(surface_pressure=1013.0,T_dew_C=4.0,factor=110,c='c',marker=',',linestyle=':')
Weather underground 1030 Wien http://www.wunderground.com/weatherstation/WXDailyHistory.asp? ID=IWIENWIE4&month=4&day=23&year=2011

title("Lightmeter Wien-Zentrum, Lebensministerium, cal. April 2011");
suptitle(X.Datum[X.JD.argmin()]+" to "+X.Datum[X.JD.argmax()])
xlabel("Time [UTC]"); ylabel("Illumination / [Lux]");
legend(prop=matplotlib.font_manager.FontProperties(size='small'),loc='upper right')

lebenstit="Wien Zentrum, Lebensministerium "+X.Datum[X.JD.argmin()]+" to "+X.Datum[X.JD.argmax()]
figure();
X.plot_dndLux_all_skies(X.em1T(X.Strom,X.Temperatur,a,b,c,d),bins=50,lgLux_range=[-5.5,-2],unit="Watt/(m*m)")

figure();
X.plot_dndLux_all_skies(X.em1T(X.Strom,X.Temperatur,a,b,c,d),bins=200,title=lebenstit)

--[[Benutzer:GuentherWuchterl|GuentherWuchterl]] 15:16, 25. Jun. 2011 (UTC)

==Kalibration Ende März '11==
[[File:Kali_LebMin_maerz11.png|thumb|Die Nächte sind leider nicht sehr sauber.]]

===Log:===
x=lies_Verzeichnis('/home/lightmeter1/Desktop/LIGHT/atlebmin2011-09-04/', Datenschritt=30, timezone=1);
a,b,c,x0,d= 1.296e+05,3.508e-02,2.289e-07,-2.910e-03,6.276e-03
x.Observer.elev=209; x.Observer.lat="48:12:33.35"; x.Observer.long="16:22:54.32"; # LEBmin
execfile("_hello.py")
Calculating Lunar Ephemeris; please wait
Calculating Solar Ephemeris; please wait
ssh1=(x.Sunheight_deg_from_JD(x.JD)>30)|((x.Sunheight_deg_from_JD(x.JD)<0)&(x.Sunheight_deg_from_JD(x.JD)>-18))
sjd1=(x.JD>mx.DateTime.DateTime(2011,4,3,0,0,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,4,3,4,48,0).jdn)
sjd2=(x.JD>mx.DateTime.DateTime(2011,4,3,17,40,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,4,3,18,10,0).jdn)
sjd3=(x.JD>mx.DateTime.DateTime(2011,4,2,15,25,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,4,2,18,25,0).jdn)
sjd4=(x.JD>mx.DateTime.DateTime(2011,4,4,3,5,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,4,4,4,10,0).jdn)
sjd5=(x.JD>mx.DateTime.DateTime(2011,4,3,9,0,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,4,3,14,48,0).jdn)
sjd7=(x.JD>mx.DateTime.DateTime(2011,3,30,5,35,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,3,30,14,0,0).jdn)
sjd6=(x.JD>mx.DateTime.DateTime(2011,4,10,5,15,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,4,10,6,15,0).jdn)
SELECT=(sjd1|sjd2|sjd3|sjd4|sjd5|sjd6|sjd7)&ssh1
x.fit_em1_to_natLight(JD_select=SELECT, Lux_range=[0.00001,300000]);
Fit: a,b,c,x0,d,: 1.214e+05,3.952e-02,1.248e-07,-1.833e-02,5.393e-03, (res2/(N-n-1))^1/2 = 0.173 ,N=1802,n= 5
a,b,c,x0,d= 1.214e+05,3.952e-02,1.248e-07,-1.833e-02,5.393e-03
x.plot_Sunlight_Watt_per_square_meter_from_JD_DM(surface_pressure=997.0, T_dew_C=3.0, factor=106, c='c', marker=',' , linestyle=':')
legend(prop=matplotlib.font_manager.FontProperties(size='small'),loc='center left')
x.set_simple_time_axis_format()

'''a , b , c , x0 , d = 1.214e+05 , 3.952e-02 , 1.248e-07 , -1.833e-02 , 5.393e-03 #hier c_Lux! f=106'''

--[[Benutzer:Nero2401|Nero2401]] 12:47, 4. Sep. 2011 (UTC)

= Archiv =

==Messdaten==

Nahezu-Echtzeit-Daten finden sich auf http://www.lightdata.at.vu

Lightmeter List

2018-02-14T16:50:00Z

2017-08-10T13:00:56Z

Nero2401: /* LightPi zip archives */

 [[File:LightPiLogo.jpg|thumb|right|180x150px]]

= Introduction =

== The Lightrouter ==

Up to now, the [[Lightrouter]] was our preferred workhorse for collecting and transmitting [[Lightmeter]] data. It's low-cost and low-power design allowed for continuous nightsky measurements, automatic data transmission and even - to some extent -  remote maintenance.

But, over time several issues surfaced: 

*The hardware version 2 of the WR1043ND rendered our firmware image obsolete, leading to a more manual setup routine.
*Future hardware versions will come with a locked firmware, preventing the use of OpenWRT (due to a new FCC rule).
*In offline-scenarios (no NTP, and no GPS) the internal clock performed terrible, exhibiting nonlinear, irregular drifts.
*The internal flash memory is not large enough to hold the entire setup, leading to the need of an overlay filesystem, creating a high dependency on the presence of the USB stick.
*Due to ill-defined brown-out behaviour of the router, the filesystem of several USB sticks got corrupted, leaving the stations paralyzed.
*Our central server died (summer 2016), leaving the reverse-SSH-tunnels dangling in mid-air, and thus preventing remote connections and data collection.
*Power consumption with up to 18W is quite high for solar powered off-grid stations.
*Some gerneral reliability issues.

== The LightPi ==

To combat all these shortcomings, the LightPi is under development. Based on a Raspberry Pi, extended by a realtime module, the LightPi will be easier to set up and to maintain, without increasing the price tag.

Some of it's main features are:

*High and reliable hardware availability, good inter-generation compatibility.
*Higher computing power and full debian-based operating system.
*Lower power consumption (2-4W [Model 3 B], 0.5-1.2W [Model A+]). * 
*4 USB ports (Model B+ upwards), eliminating the USB hub.
*SD-card instead of small onboard flash - no more overlay filesystems.
*Highly accurate DS3231 RTC module (+/-3.5ppm).
*Simple plug-and-play with any FAT32 formatted USB stick for data storage.
*As inexpensive as the Lightrouter.
*Uses A. Trawöger's Lightrouter-"lightmetermini"-python-driver.

<span style="font-size:x-small;">*...based on interpolation of various internet sources.</span>

 

As the LightPi platform ist still under active development, several features are not yet implemented:

*Remote shell access (partly implemented).
*Data transmission (planned).
*NTP synchronsiation (planned).
*GPS synchronisation (planned).
*On-site network service for data access (planned).
*Independence of a central server infrastructure (design guideline).

 

== Current state ==

The LightPi project's current state is  '''developing / testing '''.

All the key networking capabilities have yet to be implemented, but the offline version is already up and running. First long-term reliability tests are currently in their starting phase.

= Hardware acquisition =
<div>
=== LightPi shopping list ===

*Raspberry Pi (any model)
*DS3231 RTC module
*MicroSD / SD card (dep. on RasPi model) with 4+GB
*Power supply (5V, micro USB)
*USB stick (FAT32 formatted)
*For model A/A+/Zero USB hub
*For model Zero: USB-OTG adapter
*Optional, but recommended: A case for the RasPi

 
</div><div>Finding a source for the Raspberry Pis should not be difficult, as big electronics resellers (e.g. RS Components) have them listed. Usually the A/A+ models (and their cases) are harder to find, and the Zeros tend to be outsold.</div><div><br/></div><div>A suitable RTC module can be found here: [https://www.aliexpress.com/item/Free-shipping-1PCS-DS3231-Real-Time-Clock-Module-forarduino-3-3V-5V-with-battery-For-Raspberry/32570116150.html [1]]</div><div><br/></div>
=== Choosing a Raspberry Pi model ===
<div>Some hints regarding the different models:</div>
*All "B" models have 2+ USB ports, eliminating the need for an USB hub.
*Also, all "B" models come with an Ethernet port, the A/A+/Zero models do not have native networking capabilities.
*Model 3 B even has it's own onboard WiFi adapter.
*The Models A+/Zero have the lowest power consumption - ideal for off-grid stations.
*Model Zero has no fullsized USB port, thus needing an USB-OTG adapter.
*First generation RasPis (1A and 1B, or just "A" and "B") use full size SD cards, other models use MicroSD.
*Used first/second generation RasPis can be found very cheap on the internet.
<div> </div><div>The bottomline is:<br/></div>
*Minimum energy consumption: A+/Zero
*Maximum networking capability:  3B
<div> </div><div><br/></div>
 

= Setup =

== Preparation ==

=== Hardware ===

For the setup process you need:

*Your computer
*SD/MicroSD card reader
*HDMI capable monitor
*HDMI cable
*USB mouse
*USB keyboard

(The USB/HDMI items may be borrowed from your computer - no need for a second set.)

 

Optional, but highly recommended for the setup process:

*Internet connection via WiFi
*USB WiFi adapter (for all models except 3 B)

or:

*Internet connection via Ethernet
*USB Ethernet adapter (for models A/A+/Zero)

 

=== Software ===

*The Raspbian image file from [https://www.raspberrypi.org/downloads/raspbian/&nbsp https://www.raspberrypi.org/downloads/raspbian/]
*If you are using Windows: Win32DiskImager

 

=== LightPi zip archives ===

Always use the most recent version!

==== Version v20170810 ====

[[File:LightPi v20170810.zip|File:LightPi_v20170810.zip]]

Improvements:

Instructions inside.

==== Version v20161115 ====

[[File:LightPi v20161115.zip|File:LightPi_v20161115.zip]]

First public version of LightPi.

Instructions inside.

 

== Configuration ==

{| border="1"
|-
| [[File:LightPi RTC-Module.jpg|thumb|left]]
|-
| Raspberry Pi Model 3 B (left) and<br/>Model A+ (right), outfitted with a<br/>DS3231 RTC module (a third one<br/>on the bottom right).
|}
<br/>

= Contact and contribution =
You are alway welcome to test and give feedback. The easiest way to communicate is to just edit the buletin board section below.

--[[User:Nero2401|Nero2401]] ([[User talk:Nero2401|talk]]) 14:02, 10 August 2017 (CEST)

== Bulletin board ==

<br/>...

KSW

2017-08-03T15:01:22Z

Nero2401: /* Kuffner-Sternwarte, Lightmeter Süd, Southern Lightmeter */

=Lightmeters at the [http://Kuffner-Sternwarte.at Kuffner-Observatory], Vienna=

Handluxmeter Messungen: [[Luxmeter Messungen Kuffner-Sternwarte]]

==Kuffner-Sternwarte, Lightmeter Nord Northern Lightmeter==

Station: ''at_kuffner1''
Sensor: S/N 918021 , Mark 2.3l
Location: on mast N of refractor dome
Installed 2011-06-01 at KSW mast N of dome on roof of Vertikalkreis
(Sensor-upgrade to Mark 2.3l S/N 021);

Zweiter Standort der Kuffner-Lightmeter nach Tests auf dem Ost-Dach, "Quantenbox";

2017-08-03: Neue Konfiguration: at_kuffner_3 ([[postNetz]]) --[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 16:57, 3 August 2017 (CEST)

==Kuffner-Sternwarte, Lightmeter Süd, Southern Lightmeter==

[[File:Lightmeter Süd 2016.JPG|thumbnail|Lightmeter Süd auf dem S-Dach der Kuffner-Sternwarte, nach der Neuinstallation im May 2016]]

Station: ''at_kuffner2''
Sensor: S/N 918033 , Mark 2.3l
Location: On top of the south roof
(Lesereaum, Vestibül, Nähstube)
Installed: May 2014, new mount: autumn 2015; 2016-05-26

Cleaned by TV on 2016-05-26

2017-08-03: Neue Konfiguration: at_kuffnersued_2 ([[postNetz]])

==Daten Schnellansicht der letzten Woche==

Find last week's data at http://www.lightdata.at.vu

== Kalibrationen ==

===at_Kuffner===

===Calibration for Mark2.3l, Data: aug. 28th/29th 2011===
[[File:Kali_KSW.png|thumb|calibrated: sept. 1st, 2011]]
In [4]: x=lies_Verzeichnis('/home/lightmeter1/Desktop/LIGHT/atkuffner2011-08-30/', Datenschritt=3, Format="Lightrouter");
In [5]: x.Observer.elev=280; x.Observer.lat="48:12:46.13"; x.Observer.long="16:17:28.75"; # kuffner
In [6]: x.plot_NatLight(); x.plot_Mond_GR_Lux_h_extinction()
In [8]: ssh1=(x.Sunheight_deg_from_JD(x.JD)>30)|((x.Sunheight_deg_from_JD(x.JD)<0)&(x.Sunheight_deg_from_JD(x.JD)>-18))
In [9]: sjd1=(x.JD>mx.DateTime.DateTime(2011,8,29,0,0,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,29,5,0,0).jdn)
In [10]: sjd2=(x.JD>mx.DateTime.DateTime(2011,8,29,7,45,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,29,8,54,0).jdn)
In [16]: sjd3=(x.JD>mx.DateTime.DateTime(2011,8,28,14,0,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,28,18,43,0).jdn)
In [21]: snd1=(x.JD>mx.DateTime.DateTime(2011,8,29,7,42,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,29,7,46,0).jdn)
In [38]: SELECT=(sjd1|sjd2|sjd3)&ssh1&(~(snd1))
In [39]: x.fit_em1_to_natLight(JD_select=SELECT, Lux_range=[0.00001,300000]);
Fit: a,b,c,x0,d,: 1.957e+05,1.872e-03,1.158e-06,-5.949e-03,5.579e-03, (res2/(N-n-1))^1/2 = 0.0759 ,N=5791,n= 5
In [40]: a,b,c,x0,d= 1.957e+05,1.872e-03,1.158e-06,-5.949e-03,5.579e-03
In [48]: x.plot_Sunlight_Watt_per_square_meter_from_JD_DM(surface_pressure=978.0, T_dew_C=15.0, factor=110.8, c='c', marker=',' , linestyle=':')
In [49]: legend(prop=matplotlib.font_manager.FontProperties(size='small'),loc='center left')
In [50]: x.set_simple_time_axis_format()

'''a , b , c , x0 , d = 1.957e+05 , 1.872e-03 , 1.158e-06 , -5.949e-03 , 5.579e-03'''

--[[Benutzer:Nero2401|Nero2401]] 22:09, 1. Sep. 2011 (UTC)

===Kal 2012-12-28===

In [7]: x=lies_Verzeichnis('/home/nero2401/at_kuffner_kali/', Datenschritt=1, Format="Lightrouter")
In [13]: x.Observer.elev=280; x.Observer.lat="48:12:46.13"; x.Observer.long="16:17:28.75"; # KSW
In [14]: x.Berechne_Sonne();x.Berechne_Mond();x.plot_NatLight()
In [91]: syd1=(x.JD>mx.DateTime.DateTime(2012,8,20,2,35,0).jdn) & (x.JD<mx.DateTime.DateTime(2012,8,20,8,30,0).jdn)
In [92]: syd2=(x.JD>mx.DateTime.DateTime(2012,8,19,15,20,0).jdn) & (x.JD<mx.DateTime.DateTime(2012,8,19,19,0,0).jdn)
In [93]: syd3=(x.JD>mx.DateTime.DateTime(2012,8,20,14,5,0).jdn) & (x.JD<mx.DateTime.DateTime(2012,8,20,16,0,0).jdn)
In [95]: SELECT=(syd1|syd2|syd3)&ssh1
In [96]: x.fit_em1_to_natLight(JD_select=SELECT, Lux_range=[0.001,300000]);
Fit: a,b,c,x0,d,: 1.962e+05,3.975e-03,8.164e-07,-6.681e-03,5.068e-03, (res2/(N-n-1))^1/2 = 0.105 ,N=15580,n= 5
In [103]: a,b,c,x0,d= 1.962e+05,3.975e-03,8.164e-07,-6.681e-03,5.068e-03
In [104]: execfile("FL_draw_all_plots.py")
In [106]: x.plot_Sunlight_Watt_per_square_meter_from_JD_DM(surface_pressure=1019.0, T_dew_C=15.0, factor=110.9, c='c', marker=',' , linestyle=':')

zusammenfassung:
kalibration vom 28.12.2012
daten von august 2012
(res2/(N-n-1))^1/2 = 0.105

a,b,c,x0,d= 1.962e+05,3.975e-03,8.164e-07,-6.681e-03,5.068e-03
factor=110.9

... von nero; --[[Benutzer:GuentherWuchterl|GuentherWuchterl]] 17:28, 29. Dez. 2012 (UTC)

==L6 on mast N of dome==

2009-05-01 - 2011-05-30

==Lightmeter L6, Quantenbox (unitl April 30th 2009)==

bis 30 April 2009: "Quantenkasten" im Osten des KSW-Rungangs)

==L5==

Apr 09: 1.62e-06*L5-cnts + 4.61e-02

==L6, Weather-mast, roof of Vertical circle, N of refractor dome (since May 1st 2009)==

===KSW 11.4===

Voltcraft; 7.15e-07 Lux/Ampere +/- 5.5e-08 n=26 0.2 bis 0.02 lx; 11. April 09

<gallery>
File:L6_KSW_30Nov2008png.png|Nacht vom 30. November gemessen mit dem L6 Luxmeter auf dem Quantenkasten, Rundgang der Kuffner-Sternwarte
File:L6_Qbox_23Mar2009png.png|Clear dark hours in March with measurments below 0.01 lx.
</gallery>

=Measurement of straylight, Mon, Dec 29th 2009=

Test of the effect of a light to illuminate an appartment building N of the observatory. The light is of mushrom type with uplight illuminating part of the refractor dome that is reflected back onto the sensor. The light shines through the leaveless trees during the winter.

Measurments of the effect by shielding the light with a white A1-poster (on/off).

Results: on/off difference

All measurments: 1.3 +/- 0.7 mlx (Median 1mlx); <br>
Sensor in Moon-shadow: 0.6 +/- 0.14 mlx;<br>
Sensor in Moonlight: 1.8 +/- 0.4 mlx;

--[[Benutzer:GuentherWuchterl|GuentherWuchterl]] 20:59, 29. Dez. 2009 (UTC)

Datum Zeit Lux
28. Dez. 2009 21:07:00 0.0252
28. Dez. 2009 21:09:25 0.0256 -0.0004 0.0004
28. Dez. 2009 21:07:00 0.0249 0.0007 0.0007
28. Dez. 2009 21:09:30 0.0256 -0.0007 0.0007
28. Dez. 2009 21:11:11 0.0249 0.0007 0.0007
28. Dez. 2009 21:13:13 0.0254 -0.0005 0.0005
28. Dez. 2009 21:15:00 0.0247 0.0007 0.0007
28. Dez. 2009 21:16:00 0.0251 -0.0004 0.0004
28. Dez. 2009 21:18:00 0.0246 0.0005 0.0005
28. Dez. 2009 21:07:00 0.0392
28. Dez. 2009 21:07:00 0.0373 0.0019 0.0019
28. Dez. 2009 21:07:00 0.0256
28. Dez. 2009 21:35:00 0.1210
28. Dez. 2009 21:35:04 0.1230 -0.0020 0.0020
28. Dez. 2009 21:35:25 0.1220 0.0010 0.0010
28. Dez. 2009 21:35:45 0.1240 -0.0020 0.0020
28. Dez. 2009 21:36:03 0.1230 0.0010 0.0010
28. Dez. 2009 21:36:24 0.1250 -0.0020 0.0020
28. Dez. 2009 21:36:44 0.1230 0.0020 0.0020
28. Dez. 2009 21:37:07 0.1250 -0.0020 0.0020
28. Dez. 2009 21:37:24 0.1230 0.0020 0.0020
28. Dez. 2009 21:37:46 0.1250 -0.0020 0.0020
0.0013 Mittel
0.00070
0.0010
=Kugelleuchte bei Ottakringer Bad, Dez. 2011=

Nach Gesprächen (GW) wird die Kugelleuchte in den Innenraum des Bades versetzt (5.1)

=Abblendung der Leuchte im N der Kuppel (4.1.2012)=

Abblendung der Leuchte in Richtung auf die Sternwarte (Durchführung W.W.) am 4.1.2012. Damit sollte der Hintergrund für die Messungen im N um 1.3 +/- 0.7 mlx reduziert werden (sie oben).

=Ausfälle von Strom und/oder Öffentlicher Beleuchtung=

==Lichtausfall am 2017-01-30 - Dämmerung bis 18:15==

16:45 mit dem Einsetzen der Dämmerung die öffentliche Beleuchtung in Ottakring nicht eingeschalten. Beobachtet von GW während der Anfahrt über Hernalser Hauptstraße und Ottakringer Straße. Andere Lichter in den Häusern und der Strahler der Ottakringer Brauerei leuchten.

17:15 Die Ottakringer Straße und alle Seitenstraßen ist noch immer ohne öff. Bel.
17:25 (ca) Die Johann Staud Straße ist auf Halbschaltung
17:58 Messungen am Rundgang der Sternwarte WSON 0.18 0.19 0.16 0.16 lx Hochnebel leichter Schneefall
18:00 Kurzer Komplettausfall der Öff. Beleuchtung (Flackern) in der Starchant Siedlung
18:05 Halbschaltung noch immer bis hinauf zur Feuerwach und Villa Aurora
18:15 Wieder Vollschaltung (geprüft Johann Staud unter Ott. Bad und oberhab Starchant)

--[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 19:57, 30 January 2017 (CET)

=Weather=

Wetterstation Kuffner-Sternwarte: http://ksw.astronomie-wien.at/

Nearby [http://www.wieshofer.at/christoph/wetter_Ueber.shtml Private Wetterstation Penzing]

Wetterradar (Tschechien): http://radar.bourky.cz/

WH --[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 14:54, 28 April 2016 (CEST)

PostNetz

2017-08-03T15:00:53Z

Nero2401:

PLACEHOLDER

--[[User:Nero2401|Nero2401]] ([[User talk:Nero2401|talk]]) 17:00, 3 August 2017 (CEST)

KSW

2017-08-03T15:00:34Z

Nero2401: /* Kuffner-Sternwarte, Lightmeter Nord Northern Lightmeter */

=Lightmeters at the [http://Kuffner-Sternwarte.at Kuffner-Observatory], Vienna=

Handluxmeter Messungen: [[Luxmeter Messungen Kuffner-Sternwarte]]

==Kuffner-Sternwarte, Lightmeter Nord Northern Lightmeter==

Station: ''at_kuffner1''
Sensor: S/N 918021 , Mark 2.3l
Location: on mast N of refractor dome
Installed 2011-06-01 at KSW mast N of dome on roof of Vertikalkreis
(Sensor-upgrade to Mark 2.3l S/N 021);

Zweiter Standort der Kuffner-Lightmeter nach Tests auf dem Ost-Dach, "Quantenbox";

2017-08-03: Neue Konfiguration: at_kuffner_3 ([[postNetz]]) --[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 16:57, 3 August 2017 (CEST)

==Kuffner-Sternwarte, Lightmeter Süd, Southern Lightmeter==

[[File:Lightmeter Süd 2016.JPG|thumbnail|Lightmeter Süd auf dem S-Dach der Kuffner-Sternwarte, nach der Neuinstallation im May 2016]]

Station: ''at_kuffner2''
Sensor: S/N 918033 , Mark 2.3l
Location: On top of the south roof
(Lesereaum, Vestibül, Nähstube)
Installed: May 2014, new mount: autumn 2015; 2016-05-26

Cleaned by TV on 2016-05-26

2017-08-03: Neue Konfiguration: at_kuffnersued_2 (postNetz)

==Daten Schnellansicht der letzten Woche==

Find last week's data at http://www.lightdata.at.vu

== Kalibrationen ==

===at_Kuffner===

===Calibration for Mark2.3l, Data: aug. 28th/29th 2011===
[[File:Kali_KSW.png|thumb|calibrated: sept. 1st, 2011]]
In [4]: x=lies_Verzeichnis('/home/lightmeter1/Desktop/LIGHT/atkuffner2011-08-30/', Datenschritt=3, Format="Lightrouter");
In [5]: x.Observer.elev=280; x.Observer.lat="48:12:46.13"; x.Observer.long="16:17:28.75"; # kuffner
In [6]: x.plot_NatLight(); x.plot_Mond_GR_Lux_h_extinction()
In [8]: ssh1=(x.Sunheight_deg_from_JD(x.JD)>30)|((x.Sunheight_deg_from_JD(x.JD)<0)&(x.Sunheight_deg_from_JD(x.JD)>-18))
In [9]: sjd1=(x.JD>mx.DateTime.DateTime(2011,8,29,0,0,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,29,5,0,0).jdn)
In [10]: sjd2=(x.JD>mx.DateTime.DateTime(2011,8,29,7,45,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,29,8,54,0).jdn)
In [16]: sjd3=(x.JD>mx.DateTime.DateTime(2011,8,28,14,0,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,28,18,43,0).jdn)
In [21]: snd1=(x.JD>mx.DateTime.DateTime(2011,8,29,7,42,0).jdn) & (x.JD<mx.DateTime.DateTime(2011,8,29,7,46,0).jdn)
In [38]: SELECT=(sjd1|sjd2|sjd3)&ssh1&(~(snd1))
In [39]: x.fit_em1_to_natLight(JD_select=SELECT, Lux_range=[0.00001,300000]);
Fit: a,b,c,x0,d,: 1.957e+05,1.872e-03,1.158e-06,-5.949e-03,5.579e-03, (res2/(N-n-1))^1/2 = 0.0759 ,N=5791,n= 5
In [40]: a,b,c,x0,d= 1.957e+05,1.872e-03,1.158e-06,-5.949e-03,5.579e-03
In [48]: x.plot_Sunlight_Watt_per_square_meter_from_JD_DM(surface_pressure=978.0, T_dew_C=15.0, factor=110.8, c='c', marker=',' , linestyle=':')
In [49]: legend(prop=matplotlib.font_manager.FontProperties(size='small'),loc='center left')
In [50]: x.set_simple_time_axis_format()

'''a , b , c , x0 , d = 1.957e+05 , 1.872e-03 , 1.158e-06 , -5.949e-03 , 5.579e-03'''

--[[Benutzer:Nero2401|Nero2401]] 22:09, 1. Sep. 2011 (UTC)

===Kal 2012-12-28===

In [7]: x=lies_Verzeichnis('/home/nero2401/at_kuffner_kali/', Datenschritt=1, Format="Lightrouter")
In [13]: x.Observer.elev=280; x.Observer.lat="48:12:46.13"; x.Observer.long="16:17:28.75"; # KSW
In [14]: x.Berechne_Sonne();x.Berechne_Mond();x.plot_NatLight()
In [91]: syd1=(x.JD>mx.DateTime.DateTime(2012,8,20,2,35,0).jdn) & (x.JD<mx.DateTime.DateTime(2012,8,20,8,30,0).jdn)
In [92]: syd2=(x.JD>mx.DateTime.DateTime(2012,8,19,15,20,0).jdn) & (x.JD<mx.DateTime.DateTime(2012,8,19,19,0,0).jdn)
In [93]: syd3=(x.JD>mx.DateTime.DateTime(2012,8,20,14,5,0).jdn) & (x.JD<mx.DateTime.DateTime(2012,8,20,16,0,0).jdn)
In [95]: SELECT=(syd1|syd2|syd3)&ssh1
In [96]: x.fit_em1_to_natLight(JD_select=SELECT, Lux_range=[0.001,300000]);
Fit: a,b,c,x0,d,: 1.962e+05,3.975e-03,8.164e-07,-6.681e-03,5.068e-03, (res2/(N-n-1))^1/2 = 0.105 ,N=15580,n= 5
In [103]: a,b,c,x0,d= 1.962e+05,3.975e-03,8.164e-07,-6.681e-03,5.068e-03
In [104]: execfile("FL_draw_all_plots.py")
In [106]: x.plot_Sunlight_Watt_per_square_meter_from_JD_DM(surface_pressure=1019.0, T_dew_C=15.0, factor=110.9, c='c', marker=',' , linestyle=':')

zusammenfassung:
kalibration vom 28.12.2012
daten von august 2012
(res2/(N-n-1))^1/2 = 0.105

a,b,c,x0,d= 1.962e+05,3.975e-03,8.164e-07,-6.681e-03,5.068e-03
factor=110.9

... von nero; --[[Benutzer:GuentherWuchterl|GuentherWuchterl]] 17:28, 29. Dez. 2012 (UTC)

==L6 on mast N of dome==

2009-05-01 - 2011-05-30

==Lightmeter L6, Quantenbox (unitl April 30th 2009)==

bis 30 April 2009: "Quantenkasten" im Osten des KSW-Rungangs)

==L5==

Apr 09: 1.62e-06*L5-cnts + 4.61e-02

==L6, Weather-mast, roof of Vertical circle, N of refractor dome (since May 1st 2009)==

===KSW 11.4===

Voltcraft; 7.15e-07 Lux/Ampere +/- 5.5e-08 n=26 0.2 bis 0.02 lx; 11. April 09

<gallery>
File:L6_KSW_30Nov2008png.png|Nacht vom 30. November gemessen mit dem L6 Luxmeter auf dem Quantenkasten, Rundgang der Kuffner-Sternwarte
File:L6_Qbox_23Mar2009png.png|Clear dark hours in March with measurments below 0.01 lx.
</gallery>

=Measurement of straylight, Mon, Dec 29th 2009=

Test of the effect of a light to illuminate an appartment building N of the observatory. The light is of mushrom type with uplight illuminating part of the refractor dome that is reflected back onto the sensor. The light shines through the leaveless trees during the winter.

Measurments of the effect by shielding the light with a white A1-poster (on/off).

Results: on/off difference

All measurments: 1.3 +/- 0.7 mlx (Median 1mlx); <br>
Sensor in Moon-shadow: 0.6 +/- 0.14 mlx;<br>
Sensor in Moonlight: 1.8 +/- 0.4 mlx;

--[[Benutzer:GuentherWuchterl|GuentherWuchterl]] 20:59, 29. Dez. 2009 (UTC)

Datum Zeit Lux
28. Dez. 2009 21:07:00 0.0252
28. Dez. 2009 21:09:25 0.0256 -0.0004 0.0004
28. Dez. 2009 21:07:00 0.0249 0.0007 0.0007
28. Dez. 2009 21:09:30 0.0256 -0.0007 0.0007
28. Dez. 2009 21:11:11 0.0249 0.0007 0.0007
28. Dez. 2009 21:13:13 0.0254 -0.0005 0.0005
28. Dez. 2009 21:15:00 0.0247 0.0007 0.0007
28. Dez. 2009 21:16:00 0.0251 -0.0004 0.0004
28. Dez. 2009 21:18:00 0.0246 0.0005 0.0005
28. Dez. 2009 21:07:00 0.0392
28. Dez. 2009 21:07:00 0.0373 0.0019 0.0019
28. Dez. 2009 21:07:00 0.0256
28. Dez. 2009 21:35:00 0.1210
28. Dez. 2009 21:35:04 0.1230 -0.0020 0.0020
28. Dez. 2009 21:35:25 0.1220 0.0010 0.0010
28. Dez. 2009 21:35:45 0.1240 -0.0020 0.0020
28. Dez. 2009 21:36:03 0.1230 0.0010 0.0010
28. Dez. 2009 21:36:24 0.1250 -0.0020 0.0020
28. Dez. 2009 21:36:44 0.1230 0.0020 0.0020
28. Dez. 2009 21:37:07 0.1250 -0.0020 0.0020
28. Dez. 2009 21:37:24 0.1230 0.0020 0.0020
28. Dez. 2009 21:37:46 0.1250 -0.0020 0.0020
0.0013 Mittel
0.00070
0.0010
=Kugelleuchte bei Ottakringer Bad, Dez. 2011=

Nach Gesprächen (GW) wird die Kugelleuchte in den Innenraum des Bades versetzt (5.1)

=Abblendung der Leuchte im N der Kuppel (4.1.2012)=

Abblendung der Leuchte in Richtung auf die Sternwarte (Durchführung W.W.) am 4.1.2012. Damit sollte der Hintergrund für die Messungen im N um 1.3 +/- 0.7 mlx reduziert werden (sie oben).

=Ausfälle von Strom und/oder Öffentlicher Beleuchtung=

==Lichtausfall am 2017-01-30 - Dämmerung bis 18:15==

16:45 mit dem Einsetzen der Dämmerung die öffentliche Beleuchtung in Ottakring nicht eingeschalten. Beobachtet von GW während der Anfahrt über Hernalser Hauptstraße und Ottakringer Straße. Andere Lichter in den Häusern und der Strahler der Ottakringer Brauerei leuchten.

17:15 Die Ottakringer Straße und alle Seitenstraßen ist noch immer ohne öff. Bel.
17:25 (ca) Die Johann Staud Straße ist auf Halbschaltung
17:58 Messungen am Rundgang der Sternwarte WSON 0.18 0.19 0.16 0.16 lx Hochnebel leichter Schneefall
18:00 Kurzer Komplettausfall der Öff. Beleuchtung (Flackern) in der Starchant Siedlung
18:05 Halbschaltung noch immer bis hinauf zur Feuerwach und Villa Aurora
18:15 Wieder Vollschaltung (geprüft Johann Staud unter Ott. Bad und oberhab Starchant)

--[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 19:57, 30 January 2017 (CET)

=Weather=

Wetterstation Kuffner-Sternwarte: http://ksw.astronomie-wien.at/

Nearby [http://www.wieshofer.at/christoph/wetter_Ueber.shtml Private Wetterstation Penzing]

Wetterradar (Tschechien): http://radar.bourky.cz/

WH --[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 14:54, 28 April 2016 (CEST)

PostNetz

2017-08-03T14:59:58Z

Nero2401: Created page with "PLACEHOLDER"

PLACEHOLDER

User:Nero2401

2017-08-03T14:59:43Z

Nero2401: /* Involved with */

[http://kuffner-sternwarte.at/hms/wiki/index.php5?title=Benutzer:Nero2401 [1]] The corresponding page on the old Wiki.

= Info =

'''Name:''' Felix Linhardt<br/>'''Location:''' Vienna, Austria

Kuffner Sternwarte, '''LPAG'''

= Friends with =

[[Benutzer:ManuLPAG|ManuLPAG]]   [[Benutzer:ConnyLPAG|ConnyLPAG]]   [[Benutzer:KathiLPAG|KathiLPAG]]

= Involved with =

[[LightPi]] ''>> new! <<''

[[postNetz]] ''>> new! <<''

[[Lightrouter]]

[[LPAG Inventar]]

[[Lightmeter List]]

[[Lichtkartierung und Lichtkataster Wien]]

[[Lichtkataster Linz]]

[[Nl comparison|LM/SQM-Intercomparison]]

== Lightmeter locations ==

{| border="0" cellspacing="0" cellpadding="0"
|-
|
[[Nz tekapo|NZ_Tekapo]]

|
[[Höflein a/d Donau|AT_Klosterneuburg]]   

|
[[Stationsseite Lebensministerium|AT_LebMin]]

|-
|
[[Grossmugl Lightmeter|AT_Groszmugl]]

|
[[KSW|AT_Kuffner]]

|
[[At kuffner2|AT_Kuffner2]]

|-
|
[[At neukirchen|AT_Neukirchen]]   

|
[[At hohedirn|AT_HoheDirn]]

|
[[At liesing|AT_Liesing]]

|-
|
[[At altedonau|AT_AlteDonau]]

|
[[At grebenzen|AT_Grebenzen]]

|
[[Kepler-Sternwarte Linz|AT_Linz]]

|-
|
[[At linzuma|AT_LinzUmA]]

|
[[At linzumb|AT_LinzUmB]]

|
[[At schoepfl1|AT_Schoepfl1]]

|-
|
[[At schoepfl2|AT_Schoepfl2]]

|
[[At linzschloss|AT_LinzSchloss]]

|
[[Wildnisgebiet Dürrenstein|AT_Duerrenstein]]

|-
|
...

|
|
|}

= Lightrouter Bestellungen =

{| border="1"
|-
! Stationsname
! Betreiber
! Ansprechpartner
! Lightmeter
! Ethernet/WiFi/UMTS/(GPS)
! DHCP / stat. IPs
! 230V/12V
! USB-Verlängerung
! Besonderheiten
! Status
! Tabelleneintrag
|-
| AT_AlteDonau
| Naturfreunde Wien
| Hannelore S.
| Mk2.3L
| UMTS
| ---
| 230V
| 5m
| ---
| <font color="#900000">'''tot'''</font>
| --[[User:Nero2401|Nero2401]] ([[User talk:Nero2401|talk]]) 17:22, 19 November 2016 (CET)
|-
|  
|  
|  
|  
|  
|  
|  
|  
|  
|  
|  
|-
| ''AT_template''
| ''Betreiber''
| ''Ansprechpartner''
| ''Mk2.x''
| ''Netzzugang''
| ''DHCP/IPs''
| ''Strom''
| ''+USB''
| ''Bes.?''
| ''Status''
| ''Signatur''
|}

= Missing Lightmeters =

There is no information about the current location of several Lightmeters owned by Verein Kuffner Sternwarte and LPAG. (see [[LPAG Inventar]], [[Lightmeter List]])

Here is a List of these "missing in action":

=== Mk 2.3L ===

---

=== Mk 2.3 ===

---

(Überblick verloren)

= Favorite Links =

<strike>[[http://kuffner-sternwarte.at/hms/wiki/index.php5?title=Spezial:Letzte_Änderungen&hidebots=0&days=3650&limit=5000 [1]]] <- LightmeterWiki-Changelog</strike>

[[http://hms.sternhell.at/lightwiki/index.php?title=Special:RecentChanges&days=3000&from=]] <- New Wiki Changelog

[http://readthedocs.org/docs/lightrouter-doc http://readthedocs.org/docs/lightrouter-doc] <- Lightrouter-Installation

[https://lightrouter-doc.googlecode.com/hg/_build/html/index.html https://lightrouter-doc.googlecode.com/hg/_build/html/index.html] <- Lightrouter-Installation (ALT!)

[http://meta.wikimedia.org/wiki/Hilfe:Handbuch?uselang=de http://meta.wikimedia.org/wiki/Hilfe:Handbuch?uselang=de] <- Wiki-Formatierungs-Anleitung

[http://www.mcaviglia.ch/gmap/get_coor_ext.asp?l=AUT http://www.mcaviglia.ch/gmap/get_coor_ext.asp?l=AUT] <- Koordinaten-Werkzeug

[http://www.gpsvisualizer.com/convert_input http://www.gpsvisualizer.com/convert_input] <- Konvertiert *.NMEA auf ''lesbar''<br/>[http://www.gpsvisualizer.com/map_input?form=googleearth http://www.gpsvisualizer.com/map_input?form=googleearth] <- kann aus Höheninfo Farbe machen

[http://www.wolframalpha.com http://www.wolframalpha.com]

[http://www.intermap1.noel.gv.at/webgisatlas/(S(rholgp55e23nff45bdi1tdmt))/init.aspx?karte=atlas_gst&ks=planung_und_kataster&redliningid=qcmwrh453ngcdq4512wzdrb4&box=463584.611273792%3b244801%3b950893.388726208%3b441162&srs=31259 NÖ-Atlas] <- Gutes Koordinaten-Messwerkzeug dabei (Wien/NÖ)

[http://dc.zah.uni-heidelberg.de/lightmeter/q/weather/form http://dc.zah.uni-heidelberg.de/lightmeter/q/weather/form] <- GAVO-Query-Form

= Pictures =

Eine mögliche Art, die Daten der Messfahrten darzustellen... War aber ''sehr'' viel Arbeit. Das möcht ich wirklich nicht für alle 6 WUA-Fahrten machen.<br/><gallery>
File:Visualisierung1_2011-12-19.jpg| Blickrichtung: SSO.
File:Visualisierung2_2011-12-19.jpg| Farblegende links auf dem Bild. Ein fehlerhafter Datenpunkt in "Transdanubien".
File:Visualisierung3_2011-12-19.jpg| Detail
File:Visualisierung4_2011-12-19.jpg| ...mit DMSP-Daten im Hintergrund (und kleinen Render-Fehlern).
</gallery>

<br/>Deutlich einfacher durchzuführen:

<gallery>
File:Fahrtenuebersicht1_2011-12-17.jpg|Zusammenstellung aller sechs Messrouten
File:Fahruebersicht1_strassen_2011-12-17.jpg|...mit Straßenbezeichnungen
File:FahrtenUebersichtLichtverschmutzung_2011-12-17.jpg|Alle sechs Routen, hinterlegt mit den 2010-DMSP-Daten
File:AlleMessfahrten2011.jpg|'''''Alle''''' Messfahrten
</gallery>

Heutige Google-Maps-Arbeit. Dieser ist jedoch viel Programmierarbeit vorausgegangen. Das sind jetzt alle 3 LM, jeweils mit 4-Sekunden-Gaußglocke gefaltet, und Messwert nach oben (wegen Ausreißern) begrenzt. --[[Benutzer:Nero2401|Nero2401]] 00:51, 27. Dez. 2011 (UTC)<br/><gallery>
File:Visualisierung_2011-12-27_1.jpg|vier der WUA Top10
File:Visualisierung_2011-12-27_2.jpg|einzelne Straßenleuchten erkennbar
File:Visualisierung_2011-12-27_3.jpg|Kreuzung = hell
File:Visualisierung_2011-12-27_4.jpg|Praterstern - am hellsten unter der Unterführung
</gallery>

Aktueller Fortschritt meines Programms. --[[Benutzer:Nero2401|Nero2401]] 00:51, 27. Dez. 2011 (UTC)<br/><gallery>
File:Visualisierung_2011-12-27_5.png|logarithmische Darstellung dreier WUA Fahrten
File:Visualisierung_2011-12-27_6.png|lineare Darstellung dreier WUA Fahrten
File:Visualisierung_2011-12-27_7.jpg|Benennung einiger der hellsten Abschnitte (Dank an [[Benutzer:ManuLPAG|ManuLPAG]])
</gallery>

Heute ist mein neuestes Programm fertig geworden: nun füttert man nur noch GPS- und Lightmeterdaten hinein, und es kommt ein fertiges *.kml für GoogleEarth heraus. --[[Benutzer:Nero2401|Nero2401]] 00:15, 11. Mär. 2012 (UTC)

<gallery>
File:Visualisierung_2012-03-11.jpg|Blick über Ottakringer Straße Richtung NNO. (alte Farbgebung)
File:Visualisierung2_2012-03-13.jpg|Blick über Höhenstraße (schwarze Linie, rechts unten) nach Süden. Dahinter knallhell: Neuwaldeggerstraße.
File:Visualisierung1_2012-03-13.jpg|Messfahrt Großmugler Pufferzone bis Wien hinein. 20. Februar 2012, LPAG.
File:Visualisierung1_2012-08-08.jpg|Messfahrt Großmugler Pufferzone mit Logarithmischer Farbskala und DMSP-Daten im Hintergrund.
File:Visualisierung1_2012-08-27.jpg|Noch einmal die Messfahrt, links Farbwert-/Messwert-Tabelle der Fahrtdaten (passt nicht für DMSP-Daten).
</gallery>

= Bulletinboard =

'''To contact me, just edit this section!'''

mal schauen ob das funktioniert. so brauche ich deine email nicht ausgraben. ich sah an den logbüchern, dass es wieder spam attacken gibt. diesmal von maschinen oder menschen, die accounts generieren.

danke dass du dich kümmerst, wenn ich helfen kann, sag bescheid. gruß jan (janHD)

Ja, funktioniert.
Ich muss meinerseits schauen, ob das Antworten auch geht - also ob du jemals wieder hier reinschaust. ;-)
Spam. Ja... Was mich am Anfang irritiert hat, war, dass der erste Spameintrag nicht so nach "aggressivem
Spamming" geklungen hat, und es einfach ein verwirrter Benutzer hätte sein können. Aber der zweite Eintrag
bestätigte mich dann.
Der dritte (von "ActionNinja") war ich selbst - ich hab einen Dummybenutzer angelegt um nachzuprüfen wie
leicht man an einen Useraccount kommt. Und ja, wäre alles für einen Bot machbar. Und gegen menschliche
Spammer ist ja überhaupt praktisch kein Kraut gewachsen.
Lg, --[[Benutzer:Nero2401|Nero2401]] 08:38, 8. Aug. 2012 (UTC)

LightPi

2016-11-28T13:06:16Z

Nero2401:

oooooooooo '''This article is under construction! '''oooooooooo [[File:LightPiLogo.jpg|thumb|right|180x150px]]

= Introduction =

== The Lightrouter ==

Up to now, the [[Lightrouter]] was our preferred workhorse for collecting and transmitting [[Lightmeter]] data. It's low-cost and low-power design allowed for continuous nightsky measurements, automatic data transmission and even - to some extent -  remote maintenance.

But, over time several issues surfaced: 

*The hardware version 2 of the WR1043ND rendered our firmware image obsolete, leading to a more manual setup routine.
*Future hardware versions will come with a locked firmware, preventing the use of OpenWRT (due to a new FCC rule).
*In offline-scenarios (no NTP, and no GPS) the internal clock performed terrible, exhibiting nonlinear, irregular drifts.
*The internal flash memory is not large enough to hold the entire setup, leading to the need of an overlay filesystem, creating a high dependency on the presence of the USB stick.
*Due to ill-defined brown-out behaviour of the router, the filesystem of several USB sticks got corrupted, leaving the stations paralyzed.
*Our central server died (summer 2016), leaving the reverse-SSH-tunnels dangling in mid-air, and thus preventing remote connections and data collection.
*Power consumption with up to 18W is quite high for solar powered off-grid stations.
*Some gerneral reliability issues.

== The LightPi ==

To combat all these shortcomings, the LightPi is under development. Based on a Raspberry Pi, extended by a realtime module, the LightPi will be easier to set up and to maintain, without increasing the price tag.

Some of it's main features are:

*High and reliable hardware availability, good inter-generation compatibility.
*Higher computing power and full debian-based operating system.
*Lower power consumption (2-4W [Model 3 B], 0.5-1.2W [Model A+]). * 
*4 USB ports (Model B+ upwards), eliminating the USB hub.
*SD-card instead of small onboard flash - no more overlay filesystems.
*Highly accurate DS3231 RTC module (+/-3.5ppm).
*Simple plug-and-play with any FAT32 formatted USB stick for data storage.
*As inexpensive as the Lightrouter.
*Uses A. Trawöger's Lightrouter-"lightmetermini"-python-driver.

<span style="font-size:x-small;">*...based on interpolation of various internet sources.</span>

 

As the LightPi platform ist still under active development, several features are not yet implemented:

*Remote shell access (partly implemented).
*Data transmission (planned).
*NTP synchronsiation (planned).
*GPS synchronisation (planned).
*On-site network service for data access (planned).
*Independence of a central server infrastructure (design guideline).

 

== Current state ==

The LightPi project's current state is  '''developing / testing '''.

All the key networking capabilities have yet to be implemented, but the offline version is already up and running. First long-term reliability tests are currently in their starting phase.

= Hardware acquisition =
<div>
=== LightPi shopping list ===

*Raspberry Pi (any model)
*DS3231 RTC module
*MicroSD / SD card (dep. on RasPi model) with 4+GB
*Power supply (5V, micro USB)
*USB stick (FAT32 formatted)
*For model A/A+/Zero USB hub
*For model Zero: USB-OTG adapter
*Optional, but recommended: A case for the RasPi

 
</div><div>Finding a source for the Raspberry Pis should not be difficult, as big electronics resellers (e.g. RS Components) have them listed. Usually the A/A+ models (and their cases) are harder to find, and the Zeros tend to be outsold.</div><div><br/></div><div>A suitable RTC module can be found here: [https://www.aliexpress.com/item/Free-shipping-1PCS-DS3231-Real-Time-Clock-Module-forarduino-3-3V-5V-with-battery-For-Raspberry/32570116150.html [1]]</div><div><br/></div>
=== Choosing a Raspberry Pi model ===
<div>Some hints regarding the different models:</div>
*All "B" models have 2+ USB ports, eliminating the need for an USB hub.
*Also, all "B" models come with an Ethernet port, the A/A+/Zero models do not have native networking capabilities.
*Model 3 B even has it's own onboard WiFi adapter.
*The Models A+/Zero have the lowest power consumption - ideal for off-grid stations.
*Model Zero has no fullsized USB port, thus needing an USB-OTG adapter.
*First generation RasPis (1A and 1B, or just "A" and "B") use full size SD cards, other models use MicroSD.
*Used first/second generation RasPis can be found very cheap on the internet.
<div> </div><div>The bottomline is:<br/></div>
*Minimum energy consumption: A+/Zero
*Maximum networking capability:  3B
<div> </div><div><br/></div>
 

= Setup =

== Preparation ==

=== Hardware ===

For the setup process you need:

*Your computer
*SD/MicroSD card reader
*HDMI capable monitor
*HDMI cable
*USB mouse
*USB keyboard

(The USB/HDMI items may be borrowed from your computer - no need for a second set.)

 

Optional, but highly recommended for the setup process:

*Internet connection via WiFi
*USB WiFi adapter (for all models except 3 B)

or:

*Internet connection via Ethernet
*USB Ethernet adapter (for models A/A+/Zero)

 

=== Software ===

*The Raspbian image file from [https://www.raspberrypi.org/downloads/raspbian/&nbsp https://www.raspberrypi.org/downloads/raspbian/]
*If you are using Windows: Win32DiskImager

 

=== LightPi zip archives ===

Always use the most recent version!

==== v20161115 ====

[[File:LightPi v20161115.zip|File:LightPi_v20161115.zip]]

First public version of LightPi.

Instructions inside.

 

== Configuration ==

{| border="1"
|-
| [[File:LightPi RTC-Module.jpg|thumb|left]]
|-
| Raspberry Pi Model 3 B (left) and<br/>Model A+ (right), outfitted with a<br/>DS3231 RTC module (a third one<br/>on the bottom right).
|}

<br/>Details to follow --[[User:Nero2401|Nero2401]] ([[User talk:Nero2401|talk]]) 03:10, 17 November 2016 (CET)

<br/>...