Δευτέρα, 5 Σεπτεμβρίου 2011

AUTONOMOUS / REMOTE CONTROLLED WATER RESERVOIR SURVEY




Another implementation of arduino micro-controller auto pilot is the lake surveying  ROV . The main advantage of such an implementation is that ,the greatest percentage of lake area has depths less than 1/2 meter and so it's quite impossible to measure it using conventional depth sounding techniques.
A motorized (via a Graupner outboard motor) plywood platform on 2 cylindrical  floats (catamaran style),  with just 5 cm drought fits the task ,  with plenty of electronics on board such as:
  • A picaxe ESC (electronic speed control)
  • A standard 4 channel r/c receiver at 35 MHZ
  • An Arduino board with Em406 GPS 
  • An intelligent depth sounder (with rs232 output)
  • A 433MHZ 9600 baud telemetry transmitter  or an XBee pro link at 900MHZ.
      and for the monitoring station:
  • A laptop that runs Winxp and Oziexplorer (my favorite mapping program)
  • An underwater  camera with video link (for clearing underwater obstructions) 
  • A laptop for data logging - real time position indication -video capture


Surveying ROV with Gps , Autopilot, RF data link and depth sounder

video
Quite a big team is required for such a project. You may need :

  • a 4x4 truck
  • a driver
  • a diver
  • a cameraman
  • a computer IT expert
  • an electronics engineer
  • a Photographer
  • a GIS expert
  • a computer graphics / desktop publishing expert
  • Logging , mapping , GIS , video authoring and  Desktop publishing software 
  • a sponsor
But the results can  be rewarding as shown in the following images :

Survey results

Survey results

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