US 12,220,624 B2
Distance recommendation device for golf in consideration of wind characteristics
Kyu-Shik Jung, Seongnam-si (KR)
Assigned to RNDUS CO., LTD., Seoul (KR)
Appl. No. 18/009,987
Filed by RNDUS CO., LTD., Seoul (KR)
PCT Filed Mar. 22, 2021, PCT No. PCT/KR2021/003475
§ 371(c)(1), (2) Date Dec. 13, 2022,
PCT Pub. No. WO2022/085876, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 10-2020-0136639 (KR), filed on Oct. 21, 2020.
Prior Publication US 2023/0226433 A1, Jul. 20, 2023
Int. Cl. A63B 71/06 (2006.01); A63B 102/32 (2015.01)
CPC A63B 71/0622 (2013.01) [A63B 2102/32 (2015.10); A63B 2220/20 (2013.01); A63B 2220/76 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A distance recommendation device for golf, the device comprising:
a wind characteristic measurement unit configured to measure a wind direction and a wind speed;
a distance measurement unit configured to calculate a horizontal distance, a vertical distance, and a recommended distance of a shot, which are distances to a target without considering an influence of the wind, on the basis of measurement information comprising a straight-line distance to the target and an inclination to the target, which are from a current position; and
a wind influence reflection unit configured to calculate a horizontal distance correction value for the horizontal distance on the basis of information on the wind direction and the wind speed, calculate an adjusted landing angle for a preset landing angle on the basis of the information on the wind direction and the wind speed, and calculate an additional distance correction value on the basis of the adjusted landing angle and the vertical distance, and calculating a final recommended distance by adding the calculated additional distance correction value and the horizontal distance correction value,
wherein the wind characteristic measurement unit comprises a plurality of voice reception units to receive an airflow noise generated due to air crossing a discontinuous surface,
wherein the wind characteristic measurement unit calculates a wind speed value on the basis of levels of signals received by the plurality of voice reception units,
wherein the wind characteristic measurement unit calculates a wind direction according to a ratio between the levels of the signals received by the plurality of voice reception units.