US 12,403,359 B2
Sensor module and weight exercise apparatus including the same
Seon Kyung Yoo, Seoul (KR)
Assigned to DRAX INC., Anyang-si (KR)
Filed by DRAX INC., Anyang-si (KR)
Filed on Dec. 27, 2022, as Appl. No. 18/089,033.
Claims priority of application No. 10-2021-0190356 (KR), filed on Dec. 28, 2021; and application No. 10-2022-0151983 (KR), filed on Nov. 14, 2022.
Prior Publication US 2023/0201664 A1, Jun. 29, 2023
Int. Cl. A63B 24/00 (2006.01); A63B 21/062 (2006.01); A63B 71/06 (2006.01); G01S 17/08 (2006.01); G01S 17/58 (2006.01)
CPC A63B 24/0062 (2013.01) [A63B 21/0628 (2015.10); G01S 17/08 (2013.01); G01S 17/58 (2013.01); A63B 2071/0658 (2013.01); A63B 2220/20 (2013.01); A63B 2220/805 (2013.01); A63B 2220/833 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A weight exercise apparatus comprising:
an exercise main body comprising a plurality of weight plates which are movable;
a sensor module configured to detect movement of a weight plate of the plurality of weight plates;
a user interface unit configured to output a user interface screen;
a memory storing at least one instruction; and
a processor configured to control the user interface unit to display a user interface element indicating an exercise state of a user corresponding to detected movement on the user interface screen, by executing the at least one instruction,
wherein the sensor module comprises:
a first laser sensor configured to irradiate a first laser beam toward the weight plate or a component moving together with the weight plate to detect a first distance of the weight plate when the weight plate moves; and
a second laser sensor configured to irradiate a second laser beam toward a component that does not move in spite of movement of the weight plate when the weight plate moves, measure a reference distance between the component that does not move and the second laser sensor at a first time point, and measure a second distance between the component that does not move and the second laser sensor at a second time point that is different from the first time point, and
wherein the processor is further configured to, by executing the at least one instruction, compensate a measurement error in the first distance detected by the first laser sensor caused by surrounding environmental conditions based on an amount of change or a change rate between the reference distance and the second distance.