■For a new way to enjoy skiing
I live in Nagano pref. in Japan.The1998 Winter Olympic games were held in Nagano.
I think ,Skiing is a sport of self-gratification,that is the origin of fun.
For 5 years , I tryed to see my telemark turn and Alpen curving turn objectively.
I think belows,
・Ski trail consits of balance between motion vector and ski skidding.
・These elements combination can become the story of ski run of the whole body ski turn of skier.
I had tryed to measure using MEMS Accelerometers ,I couldn’t get any Ski Turn parameters due to vibration noise and Integration error.
Dec.2019 I was lucky to find the ArduSimple’s SimpleRTK2B heading kit.
=>This Theme was published in the ArduSimple’s Blog at 19-March-2021.
※April 2023 STA23 Ski Tracing system improved Regards type with IMU(BNO055) YOUTUBE
※Feb 2022 Updated SkiTurnAnalyzer Skiing Animation and Data Graph Viewer development completed
But Big challenges remain that I am novice at alpen skiing.
1:Purpose of the system
A. Quantification of Ski turn Skidding
B. RL Ski parameter (headSpeed,headAngle,longtitude,latitude,height,ski Slope)
C. Time accuracy(Sampling period,RL Ski RTK Synchronizing)
D.Easy for everyone to use ,easy to understand,
E.Analyzed Results see soon after ski run
2:Ski Turn Analyzer [STA] description
GNSS board: Ardusimple SimpleRTK2B Headingkit x2
Microcomputer: M5StickCx2,M5Atom-TFx2 (Arduino IDE Programming)
F9P setting: SimpleRTK2B master configuration file Movingbase setting rate 8Hz ourput NAV-PVT,NAV-RELPOSNED
RTK: Softbank ALES NTRIP service(3300 stations in japan) https//www.softbank.jp/biz/iot/service/ichimill
1-STA system Hardware and Operation
2-STA -1stSkiing Test
3-VB.NET SkiTurnAnalyzer Operation
If you can use VB.NET on VisualStudio2019 , attached to Zip file of the STA project.
copy right free ＜～～Embarrassing with a crappy program～～）
2-2:Ski Antenna setting
※ I improve Rover antenna position farther back for avoid covering of telemark sikiing form.
Mouting View link ti YOUTUBE
#Updated July 2021
All Turn Parameter calculation and AutoTracingGraphic
cap1. AutoTracing Graphic
cap2.Basic of Bitmap Graphics
cap3.Dynamic trimming Graphics program
cap4.Ski Turn Analysis Algorithm
I am still improving programs. Latest rev 016 is below
2-5 STA Algorithm under development
A ski Run Estimation to compare with your own senses
Speed and Turn Arc and range of Motion Angle and Skidding Angle
A,B,C Ranege Shape Depends on the skier’s sence.
-STA will visualize your skiing image ,record your fired run objective.
I will be developping STA until Mar 2022.
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