• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SU918780A1
    申请号:SU787770110
    申请日:1978-02-28
    公开日:1982-04-07
    发明作者:Курт Хусс；Рудолф Френцел；Петер Войтас；Рейнхардт Реймер
    申请人:Форшунгсинститут Фюр Керперкултур Унд Спорт(Инопредприятие)；
    IPC主号:
    专利说明:

    (5) DEVICE FOR AUTOMATIC MEASUREMENT OF THE RANGE OF JUMPS ON SKIS FROM THE CAMP.
    The invention relates to devices for automatically measuring the range of jumping from a springboard. The ski jump range is the distance from the leading edge of the table for the springboard (from the springboard) to the landing point. Until now, the landing point was determined visually, i.e. determined by the judges standing on one side of the tram. The distance between them according to the regulations should be such that 4To6w each judge could cover an area of 3m. The jump distance is measured at the moment when both skis finally touched the snow or the mat. In this case, the ski bindings are attached or, when landing with a lunge, the middle between the two ski bindings. With this visual definition, measurement errors are possible up to м m. However, since the landing speed of jumpers from a springboard is about 100 km / h, the human eye, due to its slowness, is not able to accurately determine the landing point. Different light and meteorological conditions during ski jumping have an effect on the actual determination of the landing point. Judges may deliberately underestimate or overestimate the results of jumping jumps from the springboard. In addition, the disadvantage is that a large number of judges are needed to visually determine the range of jumps. Consequently in training, the range of jumps,. as a rule, it is determined even less accurately, since there are often very few judges available. Along with the method of visual determination that has been accepted so far, the range of jumps there are several methods aimed at ensuring that the distance of jumping from a springboard is determined with greater accuracy and without manifestation of subjectivism: ultra-, sound systems for measuring the distance of the principle measurements using the reflected pulse; measuring system with laser barriers with receiving pulses by induction loops; laser infrared measuring system with multiple sensing elements along the springboard V direct inductive mean system with simple signal sensors; The radar system of the electronic measuring installation of the range of jumping from a springboard. The options for automatic measurement of the range of jumps combine the following disadvantages: the jumper has equipment on its shoulders that has a relatively large weight that requires maintenance and interferes with cndpTcMej; Such methods are somewhat sensitive to the effects of the external environment and external action, and for such installations it is too expensive. ) izo@treteni - creation of a device for automatic measurement of the range of efficient ski runs, almost not requiring those “name maintenance”, subjectivism that is resistant to environmental inactivity and cost-effective ,: Tsei is achieved by the fact that along: Tr | Mp im ima are located measuring meters; Ed 4 () 1st loops of the receiving antenna, which are laid under a sleeping bag or under a litter of feather mat pads Arj to the direction of the jump of the athlete, with each measuring induction loopootvets .tvuet particular segment and Ac are united directly to the respective measuring amplifier the induction loop. These amplifiers are connected via signal wires to a central unit, in which the incoming signals are processed, recorded and fed to the indicator units. To check the reliability of the device and for varying the amplification levels of the amplifiers of the measuring induction loop depending on the height of the snow cover, a control induction loop of 04 liters (transmitting antenna) is used. It is mounted perpendicular to measuring induction loops on the edge of the springboard slope. Signals are sent to the control measuring induction loop, which in turn induce signals in the induction measuring loops similar to the signals generated when the athlete lands, the degree of amplification of the induction measuring loops vary in accordance with the different snow cover above the measuring induction loops. This also ensures that the signal is generated only at the output of the corresponding amplifier of the measuring induction loop when the athlete crosses the measuring induction loop. The gains thus determined are maintained until the next check. Under adverse conditions, such as snowfall, it may be necessary to conduct more frequent inspections. A small permanent magnet, made in the form of a rod, is installed on one of the athlete's skis. Considering that the athlete touches the ground first at the rear end of the ski and then only at the front, as a result. “High speed relative to the front end of the ski results in a permanent magnet as far from fastening as possible. Immediately before the end of the flight, the distance between the permanent magnet and the measuring induction loop is the largest. The present invention is characterized by a simple design of the entire range measurement tool; high measurement accuracy when determining the range of jumps; reliability in work; low maintenance; insignificant sensitivity to interference and external influences; low device weight; relatively low cost to purchase and repair the device. Fig. L depicts the slope of a springboard with an automatic device for measuring jumps; Figure 2 shows a ski with a permanent magnet attached to it. On the slope of the springboard at points x to x perpendicular to the direction of the jump of the athlete under the cover of snow or mats are located measuring induction loops 1. If the measurement should be carried out with an accuracy of 0.5 n, measuring induction loops 1 are laid in the raster 0, 5 m. They are a coil extending through the entire necessary width of the slope. ibki wire of sufficient mechanical strength. Each of the measuring induction loops T is connected by shielding wire directly to the corresponding amplifier 2 of the measuring induction loop. Each amplifier has a balanced input and is characterized by a high level common pressure; bandwidth, Hz; total frequency filter 50 Hz; automatic gain setting, in the range I X 10 ... 150 X 10; threshold switch. The shielding wires of the amplifiers 2 of the measuring induction loops are connected with a processor consisting, for example, of a logical part and an indicator unit. The signals of the individual control points are fed into the memory of the processor through the input circuits of the standard interface. From there they are fed in parallel to the shift register, and then successively issued. The number of shear cycles required to shift the first occupied position to the output is a measure of the jump distance. The corresponding shear cycles are calculated by a counter, in advance set number identical to the segment occupied by the measuring induction loop 1, Since each measuring induction loop t and thus the memory cell is assigned a certain segment, the result obtained can be registered and shown. Due to the different height of the snow cover there is a need to change or optimally establish the degree of amplification of each amplifier 2 measuring induction loops. Due to this, when an athlete crosses one measuring induction loop 1, ozniknovenie signal only at the output of the corresponding amplifier 2. measuring loop induction. For this purpose, a control induction loop .3 is used, mounted on the edge of the springboard slope. It also consists of a coil, a constant distance in which 0.20 m is provided by a synthetic film. Due to its required length Through all measuring induction loops 1, it is wound on a drum. Before starting jumping from, the springboard of the control induction loop 3 is rolled out on the snow or on a mat of perforated mats. to measuring induction loops t, to test the device for measuring the range of jumps and to optimize the gains of the amplifiers 2 of the measuring induction loops. It is powered by a generator with a sinusoidal voltage in the frequency range Hz at a current of about 3 A and induces the same signals in measuring induction loops x 1 that occur when the athlete lands. During the control process, the amplification of the amplifiers 2 of the measuring induction loops changes until the amplified signals correspond to the normal amplitude. The gains thus determined are still retained. until the next check. In case of adverse conditions, such as snowfall, consumption may occur. more frequent inspections during ski jumping. A permanent magnet 6 is mounted on one of the athlete’s skis of FIG. When mounting, pay attention to, so that the magnetic polarity constantly has the same direction. the The athlete chooses on which of the skis 5 a permanent magnet 6 is installed. At the end of the athlete’s flight phase, the distance from the permanent magnet 6 fixed on
    权利要求:
    Claims (1)
    [1]
    The invention is a device for automatically measuring the distance of ski jumping from a springboard, characterized in that along the ski slope there are measuring induction loops perpendicular to the direction of the skier, with each measuring induction loop corresponding to a certain length of the ski jump, as well as perpendicular to the measuring inductor on the edge of the ski jump The control loops have a control induction loop and a permanent magnet is fixed on one of the skis.
    类似技术:
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    同族专利:
    公开号 | 公开日
    FI65335C|1984-04-10|
    DE2754167A1|1978-12-21|
    PL117952B1|1981-09-30|
    PL205554A1|1979-01-29|
    CH627836A5|1982-01-29|
    FI780092A|1978-09-26|
    CS225133B2|1984-02-13|
    DD130499B1|1979-12-27|
    FI65335B|1983-12-30|
    HU177615B|1981-11-28|
    DD130499A1|1978-04-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2488419C1|2011-12-23|2013-07-27|Евгений Федорович Скляр|Method to determine length of jump during track and field horizontal jump events|
    AT383894B|1984-02-27|1987-09-10|Rieder Heinz|DEVICE FOR MEASURING OVERLENGTHS OR SPEEDS|
    DD266841B1|1986-06-02|1990-06-20|Zeiss Jena Veb Carl|METHOD AND ARRANGEMENT FOR DETERMINING THE FLIGHTWORK|
    DE4000901C2|1990-01-15|1991-11-14|Anton 8100 Garmisch-Partenkirchen De Hiebler|
    WO2007085683A1|2006-01-27|2007-08-02|Tampereen Teknillinen Yliopisto|Time parametrized trajectory determination|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD19807377A|DD130499B1|1977-03-25|1977-03-25|AUTOMATIC CONTINUOUS MEASUREMENT FOR SKISING WITH MEASUREMENT INDUCTION LOOP AND PERMANENT MAGNET|
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