A Development of Monitoring System of Ski Jumper Using Terrestrial Magnetism and Acceleration Sensor

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As the first research plan, determinate monitoring of timings and motions of take-off on ski jump was realized. In addition to this, although it is not accords FIS official rule, automatic measurement of flying distance using video and acceleration sensor was realized. Especially, flying distance is very important in ski jumping, however, since extra person(s) and equipment are required to measure, the flying distance is not measured in daily practice.Field use by only ski jumpers and coaches and feeding back deterministic results to beginner which are in first plan could not realized. This is because the research representative was taken to melancholia or known as great depression caused by over working and a gossip which had been deliberately speeded in the university by a person. As this result, the mental disease forced the research presentative to repeat being away from the university to rest and returning. The representative most mortified to be forced this.