# configuration file for weathd
# format is "key value"
# comments start with `#' and go to end of line
# blank lines are okay
# lines cannot be continued
loglevel 0 # 0,1,2 = terse,verbose,debug
poll_time 0.1 # main loop time quantum
init_time 50.0 # how long wait for children
email_list "email@example.com" # send mail to
sample_time 3 # sample time, in sec, for rotsed
sample_time_th 30 # sample time in seconds, for threads
The two important threads are described next:
# Davis Weather Station monitor
dweath run 1 # = 0/1 to run Davis weather
dweath tout 50.0 # Davis Weather timeout
dweath tpoll 20.0 # Davis weather station sample time
dweath twait 3600.0 # time from last detection to okay given
dweath devfile /dev/ttyC2 # serial port for weath stat.
# Vaisala Precipitation monitor
vprecip run 1 # = 0/1 to run Vaisala precip
vprecip tout 10.0
vprecip tpoll 1.0 # Vaisala rain detector sample time
vprecip twait 3600.0
vprecip devfile /dev/ml16pa-adc4
The Davis Weather Station is controlled via a serial interface, and reads the temperature, barometric pressure, windspeed, humidity, and has a rain gauge. The Vaisala Precipitation Detector is read from a PCI card, and will be coded to run with the CIO-CTR05 card that controls the Akerlof NightSky Monitor. This code has not been written, but better be there pretty damn quick!
In the near future weathd will also control the Nightsky Monitor. The configuration file contains legacy support for the old precipitation monitor, the ``Wren Cloud Monitor,'' and a weather database. These are not implemented for ROTSE-III.
Any precipitation detected sets the weather to ``bad,'' and the clamshell is
automatically closed. The limits for weather station data are described at the
end of the file:
tempi_min -20.0 # Min. Temp. Inside
tempi_max 100.0 # Max. Temp. Inside
tempo_min -20.0 # Min. Temp. Outside
tempo_max 110.0 # Max. Temp. Outside
dewdiff 5.0 # max allowed difference between tempo and dewpt
wspd_min -0.2 # Min. Windspeed
wspd_max 25.0 # Max. Windspeed
bar_min 20.0 # Min. Bar. Pressure: set for 7000 elevation!
bar_max 28.0 # Max. Bar. Pressure
humi_min -0.1 # Min. Humidity Inside
humi_max 200.0 # Max. Humidity Inside
humo_min -0.1 # Min. Humidity Outside
humo_max 85.0 # Max. Humidity Outside
rain_max 100.00 # rain thresh. for davis sensor
maxsky 3.0 # Akerlof sky monitor max. (not implemented yet)
minvprecip 2.5 # Vaisala precip. detector min. (***)
mincloud 0.0 # Wren cloud monitor min. (not implemented)
And finally there is the configuration information for the client/server
options for weathd.
# Weather Server updater
# ( only sends badweather flag)
weathserver run 0 # = 0/1 to run
weathserver tout 3.0
weathserver tpoll 1.0 # sample time
weathserver twait 3600.0
weathserver devfile 3902 # socket port number
# Weather Server2 updater
# (sends weather data: temp, humi, wind, dewpt)
# (disabled if weather station monitor is turned on)
weathserver2 run 0 # = 0/1 to run
weathserver2 tout 50.0
weathserver2 tpoll 20.0 # sample time
weathserver2 twait 3600.0
weathserver2 devfile 3903 # socket port number
# Weather Client monitor
weathclient run 0 # = 0/1 to run
weathclient tout 3.0
weathclient tpoll 1.0 # sample time
weathclient twait 3600.0
weathclient devfile rotsei.lanl.gov
numserver 0 # server number (0=none,1=server1,2=server2,3=both)
There are two weather server options. The plain weathserver serves the ``badweather'' flag only, usually from the Vaisala precipitation detector. The client need not know what went bad, only that it is damn important to close the clamshell as soon as possible. The fancier weathserver2 serves Davis Weather Station data every few minutes. This allows the remote machine to use the outside temperature and pressure, which is essential for focusing.
As a weather client, the weathd can connect to one or both weather servers at a nearby location. This is useful if there is only one Vaisala Detector for more than one telescope, while each telescope has its own weather station.
This functionality was created for the early stages of ROTSE-III testing when it was sited next to the working ROTSE-I system. This will probably not be used at the remote ROTSE-III locations, although people at SSO or HESS are welcome to tap into our weather data.