src/measure_ring_distance.py

   1 #!/usr/bin/env python3
   2 #
   3 # measure_ring_distance - measure the time between two rings in the same call
   4 #
   5 # Copyright (C) 2015  Antonio Ospite <ao2@ao2.it>
   6 #
   7 # This program is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 import time
  21
  22 from savemysugar.cumulative_average import cumulative_average
  23 from savemysugar.Modem import Modem
  24
  25
  26 class Rings(object):
  27     previous_time = -1
  28     average_distance = 0
  29     min_distance = 10000
  30     max_distance = -1
  31     count = 0
  32
  33
  34 def on_ring():
  35     Rings.count += 1
  36
  37     if Rings.previous_time == -1:
  38         print("First ring")
  39         Rings.previous_time = time.time()
  40     else:
  41         new_time = time.time()
  42         distance = new_time - Rings.previous_time
  43         Rings.previous_time = new_time
  44         Rings.min_distance = min(Rings.min_distance, distance)
  45         Rings.max_distance = max(Rings.max_distance, distance)
  46         Rings.average_distance = cumulative_average(Rings.average_distance,
  47                                                     Rings.count - 1, distance)
  48         print()
  49         print("Other ring")
  50         print("Ring distance: %f" % distance)
  51         print("Min ring distance: %f" % Rings.min_distance)
  52         print("Max ring distance %f" % Rings.max_distance)
  53         print("Average distance: %f" % Rings.average_distance)
  54
  55
  56 def measure_ring_distance(ingoing_port, outgoing_port, destination_number):
  57     ingoing_modem = Modem(ingoing_port)
  58     ingoing_modem.register_callback("RING", on_ring)
  59     outgoing_modem = Modem(outgoing_port)
  60
  61     outgoing_modem.send_command("ATDT" + destination_number + ";")
  62
  63     try:
  64         ingoing_modem.get_response_loop()
  65     except KeyboardInterrupt:
  66         outgoing_modem.send_command("ATH")
  67         outgoing_modem.get_response()
  68
  69
  70 def main():
  71     import sys
  72     if len(sys.argv) != 4:
  73         print("usage: %s" % sys.argv[0],
  74               "<ingoing serial port> <outgoing serial port>",
  75               "<destination number>")
  76         sys.exit(1)
  77
  78     measure_ring_distance(sys.argv[1], sys.argv[2], sys.argv[3])
  79
  80
  81 if __name__ == "__main__":
  82     main()