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Estación meteorológica
Cómo montar una estación meteorológica
Juan Antonio Villalpando

-- Tutorial de montaje y configuración --

Volver al índice del tutorial  

____________________________

33.- Ver la presión. Barometer. Pressure.

- Si estás utilizando la centralita sin los sensores externos no verás la presión.

- Vamos a configurar para verla.

- Bajamos a nuestro ordenador por FTP el archivo /etc/weewx/weewx.conf

- Ponemos esto:

 
	      # The StandardReport uses the 'Standard' skin, which contains the
        # images, templates and plots for the report.
        skin = Standard
        [[[Units]]]
            [[[[Groups]]]]
                group_altitude = meter
                group_speed2 = km_per_hour2
                group_pressure = mbar
                group_rain = mm
                group_rainrate = mm_per_hour
                group_temperature = degree_C
                group_degree_day = degree_C_day
                group_speed = km_per_hour
				   

________________________________________________________

- Esto de

target_unit = US


NO LO MODIFIQUES, debe estar siempre en "US" aunque utilices el sistema métrico.
Si lo cambia modificarás la información de la base de datos:
SQLITE_ROOT = /var/lib/weewx/weedb.sqlite y dañarás las información.

Esto solo indica que los datos se guardarán en formato "US", pero se pueden presentar en sistema métrico.

http://www.weewx.com/docs/customizing.htm#Changing_the_unit_system

______________________________
Barómetro. Presión.

- Pon estos valores en esta parte...

 
#   This section is for quality control checks. If units are not specified,
#   values must be in the units defined in the StdConvert section.

[StdQC]
    
    [[MinMax]]
        barometer = 900, 2000, mbar
        outTemp = -20, 50, degree_C
        inTemp = -20, 50, degree_C
        outHumidity = 0, 100
        inHumidity = 0, 100
        windSpeed = 0, 120, km_per_hour
        pressure = 900, 2000, mbar
				   

- Debemos cambiar los valores máximos y mínimos como indica el recuadro.

Recuerda que también hemos cambiado:

$current.outHumidity por: $current.inHumidity

$current.baromete por: $current.pressure

$trend.barometer por: $trend.pressure

 

http://weewx.com/docs/usersguide.htm#No_barometer_data

El programa utilizar barometer y pressure. pressure se obtiene directamente por hardware, es decir la información que envía en sensor, barometer se obtiene mediante fórmula, uno de los parámetros de esta fórmula es la temperatura externa.

pressure The Station Pressure (SP), which is the raw, absolute pressure measured by the station. This is the true barometric pressure for the station.
barometer The Sea Level Pressure (SLP) obtained by correcting the Station Pressure for altitude and local temperature. This is the pressure reading most commonly used by meteorologist to track weather systems at the surface, and this is the pressure that is uploaded to weather services by weewx . It is the station pressure reduced to mean sea level using local altitude and local temperature.

______________________________
- Presión absoluta y presión relativa.

En la centralita de la estación, podemos configurar la presentación de presión absoluta o relativa.

La presión relativa suele estar por los 1012 y la absoluta por 1560.

_____________________________________
- Archivo completo de configuración.

/etc/weewx/weewx.conf
 
# WEEWX CONFIGURATION FILE
#
# Copyright (c) 2009-2015 Tom Keffer 
# See the file LICENSE.txt for your rights.

##############################################################################

# This section is for general configuration information.

# Set to 1 for extra debug info, otherwise comment it out or set to zero
debug = 0

# Root directory of the weewx data file hierarchy for this station
WEEWX_ROOT = /

# How long to wait before timing out a socket (FTP, HTTP) connection
socket_timeout = 20

# Do not modify this. It is used when installing and updating weewx.
version = 3.5.0

##############################################################################

#   This section is for information about the station.

[Station]
    
    # Description of the station location
    location = "Puerto Real"
    
    # Latitude and longitude in decimal degrees
    latitude = 36.500
    longitude = -6.200
    
    # Altitude of the station, with unit it is in. This is downloaded from
    # from the station if the hardware supports it.
    altitude = 12, meter
    
    # Set to type of station hardware. There must be a corresponding stanza
    # in this file with a 'driver' parameter indicating the driver to be used.
    station_type = FineOffsetUSB
    
    # If you have a website, you may specify an URL
      station_url = http://kio4.com
    
    # The start of the rain year (1=January; 10=October, etc.). This is
    # downloaded from the station if the hardware supports it.
    rain_year_start = 1
    
    # Start of week (0=Monday, 6=Sunday)
    week_start = 0

##############################################################################

[FineOffsetUSB]
    # This section is for the Fine Offset series of weather stations.
    
    # The station model, e.g., WH1080, WS1090, WS2080, WH3081
    model = WH1080
    
    # How often to poll the station for data, in seconds
    polling_interval = 60
    
    # The driver to use:
    driver = weewx.drivers.fousb

##############################################################################

#   This section is for uploading data to Internet sites

[StdRESTful]
    
    [[StationRegistry]]
        # To register this weather station with weewx, set this to true
        register_this_station = false
    
    [[AWEKAS]]
        # This section is for configuring posts to AWEKAS.
        
        # If you wish to do this, set the option 'enable' to true,
        # and specify a username and password.
        enable = false
        username = juan
        password = micontraseña
    
    [[CWOP]]
        # This section is for configuring posts to CWOP.
        
        # If you wish to do this, set the option 'enable' to true,
        # and specify the station ID (e.g., CW1234).
        enable = false
        station = replace_me
    
    # If this is an APRS (radio amateur) station, uncomment
    # the following and replace with a passcode (e.g., 12345).
    #passcode = replace_me (APRS stations only)
    
    [[PWSweather]]
        # This section is for configuring posts to PWSweather.com.
        
        # If you wish to do this, set the option 'enable' to true,
        # and specify a station and password.
        enable = false
        station = PREAL
        password = micontraseña
    
    [[WOW]]
        # This section is for configuring posts to WOW.
        
        # If you wish to do this, set the option 'enable' to true,
        # and specify a station and password.
        enable = false
        station = replace_me
        password = replace_me
    
    [[Wunderground]]
        # This section is for configuring posts to the Weather Underground.
        
        # If you wish to do this, set the option 'enable' to true,
        # and specify a station (e.g., 'KORHOODR3') and password.
        enable = false
        station = PREAL
        password = micontraseña
        
        # Set the following to True to have weewx use the WU "Rapidfire"
        # protocol. Not all hardware can support it. See the User's Guide.
        rapidfire = False

##############################################################################

#   This section specifies what reports, using which skins, to generate.

[StdReport]
    
    # Where the skins reside, relative to WEEWX_ROOT
    SKIN_ROOT = /etc/weewx/skins
    
    # Where the generated reports should go, relative to WEEWX_ROOT
   #  HTML_ROOT = /var/www/weewx
   # En una versión de Debian con Apache se sitúa como arriba y en otras como abajo
HTML_ROOT = /var/www/html/weewx # The database binding indicates which data should be used in reports. data_binding = wx_binding # Each of the following subsections defines a report that will be run. [[StandardReport]] # See the customizing guide to change the units, plot types and line # colors, modify the fonts, display additional sensor data, and other # customizations. Many of those changes can be made here by overriding # parameters, or by modifying templates within the skin itself. # The StandardReport uses the 'Standard' skin, which contains the # images, templates and plots for the report. skin = Standard [[[Units]]] [[[[Groups]]]] group_altitude = meter group_speed2 = km_per_hour2 group_pressure = mbar group_rain = mm group_rainrate = mm_per_hour group_temperature = degree_C group_degree_day = degree_C_day group_speed = km_per_hour [[FTP]] # FTP'ing the results to a webserver is treated as just another report, # albeit one with an unusual report generator! skin = Ftp # If you wish to use FTP, uncomment and fill out the next four lines. user = juan password = micontraseña server = kio4.com path = /public_html/estacionmeteo/weewx # Set to True for a secure FTP (SFTP) connection. Not all servers # support this. secure_ftp = False # To upload files from something other than what HTML_ROOT is set # to above, specify a different HTML_ROOT here. #HTML_ROOT = /var/www/weewx # Most FTP servers use port 21 port = 21 # Set to 1 to use passive mode, zero for active mode passive = 1 [[RSYNC]] # rsync'ing to a webserver is treated as just another report skin = Rsync # If you wish to use rsync, you must configure passwordless ssh using # public/private key authentication from the user account that weewx # runs as to the user account on the remote machine where the files # will be copied. # # The following three lines determine where files will be sent. #server = replace with the rsync server name, e.g, www.threefools.org #path = replace with the rsync destination directory (e.g., /weather) #user = replace with the rsync username # Rsync can be configured to remove files from the remote server if # they don't exist under HTML_ROOT locally. USE WITH CAUTION: if you # make a mistake in the remote path, you could could unintentionally # cause unrelated files to be deleted. Set to 1 to enable remote file # deletion, zero to allow files to accumulate remotely. delete = 0 ############################################################################## # This service acts as a filter, converting the unit system coming from # the hardware to a unit system in the database. [StdConvert] # The target_unit affects only the unit system in the database. Once # chosen it cannot be changed without converting the entire database. # Modification of target_unit after starting weewx will result in # corrupt data - the database will contain a mix of US and METRIC data. # # The value of target_unit does not affect the unit system for # reporting - reports can display US, Metric, or any combination of units. # # In most cases, target_unit should be left as the default: US # # In particular, those migrating from a standard wview installation # should use US since that is what the wview database contains. # DO NOT MODIFY THIS VALUE UNLESS YOU KNOW WHAT YOU ARE DOING! target_unit = US # Options are 'US', 'METRICWX', or 'METRIC' ############################################################################## # This section can adjust data using calibration expressions. [StdCalibrate] [[Corrections]] # For each type, an arbitrary calibration expression can be given. # It should be in the units defined in the StdConvert section. # Example: foo = foo + 0.2 ############################################################################## # This section is for quality control checks. If units are not specified, # values must be in the units defined in the StdConvert section. [StdQC] [[MinMax]] barometer = 900, 2000, mbar outTemp = -20, 50, degree_C inTemp = -20, 50, degree_C outHumidity = 0, 100 inHumidity = 0, 100 windSpeed = 0, 120, km_per_hour pressure = 900, 2000, mbar ############################################################################## # This section controls the origin of derived values. [StdWXCalculate] # Derived quantities are calculated by this service. Possible values are: # hardware - use the value provided by hardware # software - use the value calculated by weewx # prefer_hardware - use value provide by hardware if available, # otherwise use value calculated by weewx pressure = prefer_hardware barometer = prefer_hardware altimeter = prefer_hardware windchill = prefer_hardware heatindex = prefer_hardware dewpoint = prefer_hardware inDewpoint = prefer_hardware rainRate = prefer_hardware ############################################################################## # For hardware that supports it, this section controls how often the # onboard clock gets updated. [StdTimeSynch] # How often to check the weather station clock for drift (in seconds) clock_check = 14400 # How much it can drift before we will correct it (in seconds) max_drift = 5 ############################################################################## # This section is for configuring the archive service. [StdArchive] # If the station hardware supports data logging then the archive interval # will be downloaded from the station. Otherwise, specify it (in seconds). archive_interval = 300 # How long to wait (in seconds) before processing new archive data. Must # be greater than zero. archive_delay = 15 # If possible, new archive records are downloaded from the station # hardware. If the hardware does not support this, then new archive # records will be generated in software. # Set the following to "software" to force software record generation. record_generation = software # Whether to include LOOP data in hi/low statistics loop_hilo = True # The data binding used to save archive records data_binding = wx_binding ############################################################################## # This section binds a data store to a database. [DataBindings] [[wx_binding]] # The database must match one of the sections in [Databases]. # This is likely to be the only option you would want to change. database = archive_sqlite # The name of the table within the database table_name = archive # The manager handles aggregation of data for historical summaries manager = weewx.wxmanager.WXDaySummaryManager # The schema defines the structure of the database. # It is *only* used when the database is created. schema = schemas.wview.schema ############################################################################## # This section defines various databases. [Databases] # A SQLite database is simply a single file [[archive_sqlite]] database_type = SQLite database_name = weewx.sdb # MySQL [[archive_mysql]] database_type = MySQL database_name = weewx ############################################################################## # This section defines defaults for the different types of databases. [DatabaseTypes] # Defaults for SQLite databases [[SQLite]] driver = weedb.sqlite # Directory in which the database files are located SQLITE_ROOT = /var/lib/weewx # Defaults for MySQL databases [[MySQL]] driver = weedb.mysql # The host where the database is located host = localhost # The user name for logging in to the host user = weewx # The password for the user name password = weewx ############################################################################## # This section configures the internal weewx engine. [Engine] [[Services]] # This section specifies the services that should be run. They are # grouped by type, and the order of services within each group # determines the order in which the services will be run. prep_services = weewx.engine.StdTimeSynch data_services = , process_services = weewx.engine.StdConvert, weewx.engine.StdCalibrate,weewx.engine.StdQC, weewx.wxservices.StdWXCalculate archive_services = weewx.engine.StdArchive restful_services = weewx.restx.StdStationRegistry, weewx.restx.StdWunderground, weewx.restx.StdPWSweather,
weewx.restx.StdCWOP, weewx.restx.StdWOW, weewx.restx.StdAWEKAS report_services = weewx.engine.StdPrint, weewx.engine.StdReport

 

_____________________________________________

En el siguiente tutorial seguiremos viendo cómo se configuran y se personalizan las plantillas.

Lo veremos en el siguiente tutorial.

___________________________________________________
Siguiente tema: 34.- Configura las plantillas.

 

- Mi correo:
juana1991@yahoo.com
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