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SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements Peter van Muyden.

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Presentation on theme: "SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements Peter van Muyden."— Presentation transcript:

1 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements Peter van Muyden

2 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements PB200 WeatherStation® Instrument True and Apparent Wind Speed and Direction Barometric pressure Air Temperature Wind Chill Temperature Heater to prevent ice build-up in wind channel Three axis accelerometer for Pitch & Roll GPS (WAAS / EGNOS) 3 axis compass with yaw rate gyro – +/- 1º for pitch and roll angles ≤ 5° – +/- 2º for pitch and roll angles ≤ 30° – +/- 3º for pitch and roll angles ≥ 30°-45° Both NMEA 0183/RS422 & NMEA 2000® Outputs

3 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements Four ultrasonic transducers operate in pairs—one transducer injects a pulse into the air. The pulse bounces off the metal plate at the bottom of the wind channel and is carried by the wind to arrive at the listening transducer a short time later. When there is no wind, the pulse travels at the speed of sound from the sender to the receiver. Whenever the wind is blowing in that direction, the pulse will arrive sooner than if the air is still. Similarly, whenever the wind is blowing in the opposite direction, the pulse will arrive later than if the air is still. Wind Calculations

4 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements The four transducers take turns in sending and receiving pulses. A microprocessor within the WeatherStation then combines the measurements from all four transducers to calculate the resultant wind speed and direction. Throughout this process, the sensor monitors the air temperature, to compensate for the fact that the speed of sound in air changes with temperature. Wind Calculations receiving

5 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements

6 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements

7 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements

8 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements

9 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements or www.jpvm.ca/WeatherStation.htm

10 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements Remote control – Smart Phones – Tablets

11 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements Future enhancements Match racing mark location Upper and lower wind limits notifications

12 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements Global Positioning System (GPS) advances

13 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements Global Positioning System (GPS) Established in 1973 to overcome the limitations of previous navigation systems The first GPS satellite was launched in 1978. A full constellation of 24 satellites was achieved in 1994. May 2, 2000 "Selective Availability" was discontinued (this improved accuracy from 100M to 10M) Position calculation is based on triangulation of satellites and signal elapsed time

14 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements GPS accuracy 1983 +/- 100 Metres Original GPS signal 2001 +/- 10 Metres Selective availability (SA) removed (Bill Clinton) 3-5 Metres: Differential GPS (DGPS) position accuracy 2007 +/- 3 Metres Wide Area Augmentation System (WAAS) enabled (North America) Survey grade GPS systems +/- 1MM post propressed

15 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements

16 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements When to use a GPS and when to use a compass ErrorAccuracy 50%1.4 Mean1.5 RMS1.8 95%3.2 Max.8.0 Distance from targetCompass bearing reading error in Metres MetresNMiles12345 93 0.0523568 185 0.136101316 278 0.15510151924 370 0.2613192632 463 0.25816243240 555 0.31019293949 648 0.351123344557 740 0.41326395265 833 0.451529445873 926 0.51632496581 1018 0.551836537189 1111 0.61939587897 1203 0.6521426384105 1296 0.723456891113 1388 0.7524487397121 1481 0.8265278104130 1573 0.85275582110138 1666 0.9295887116146 1758 0.95316192123154 1851 1326597129162

17 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements Advanced GPS’s with built-in radios Broadcast location Transmit Waypoints Poll GPS location 4Mile range

18 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements Computer based course configuration GPSLoa d Biscayne Bay

19 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements IPAD & Android tablet users Avionics digital charts: – North America $16 – Australia / New Zealand $16

20 SAILING TO WIN SAILING FOR LIFE Real-time weather station and GPS advancements It doesn’t matter what tools you plan use, just don’t leave home without the following:


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