CurrentCost meters

Devices

EnviR

Energy transmitter

IAM

OptiSmart

http://tickett.wordpress.com/2011/10/26/current-cost-optismart/

http://www.phidgets.com/docs/1102_User_Guide

Putting the OptiSmart to creative use

HW:

Geiger-Mueller counter (http://www.pollin.de/shop/dt/Njc3OTgxOTk-/Bausaetze_Module/Bausaetze/Bausatz_Geiger_Mueller_Zaehler_.html)

SW:

CurrentCost plugin (http://code.mios.com/trac/mios_currentcost-envir) and

luup.variable_watch( 'update_gamma_dose_rate', 'urn:micasaverde-com:serviceId:EnergyMetering1', 'Pulse', 259 )
 
 
function update_gamma_dose_rate( lul_device, lul_service, lul_variable, lul_value_old, lul_value_new )
 
 if gdr_startup_time == nil
  then
 
   gdr_startup_time  = os.time()
   gdr_startup_count = tonumber( lul_value_new )
 
   gdr_task_handle   = luup.task( 'Initializing ...', 2, 'Dose rate', -1 )
 
  else
 
   local total_counts = tonumber( lul_value_new )
 
   total_counts = total_counts - gdr_startup_count
 
   local total_time = os.time() - gdr_startup_time
 
   -- conversion for Geiger-Mueller counter SI39G @ 410 V
 
   local gamma_dose_rate = total_counts / total_time * 3600 / 3.86
 
   gamma_dose_rate = math.floor( gamma_dose_rate + 0.5 )
 
   local gdr_message = tostring( gamma_dose_rate ) .. ' nSv/h ' ..
                       '(' .. tostring( total_time ) .. ' s; ' .. tostring( total_counts ) .. ' imp)'
 
   luup.task( gdr_message, 2, 'Dose rate', gdr_task_handle )
 
  end
 
end