US 12,235,136 B2
Control method and controller related to electromagnetic tracking
Zong-Hsin Liu, Kaohsiung (TW); Po-Chi Hu, Kaohsiung (TW); I-Chiao Tsai, Kaohsiung (TW); and Chih-Chung Lin, Kaohsiung (TW)
Assigned to Metal Industries Research & Development Centre, Kaohsiung (TW)
Filed by Metal Industries Research & Development Centre, Kaohsiung (TW)
Filed on Dec. 6, 2022, as Appl. No. 18/076,296.
Prior Publication US 2024/0183689 A1, Jun. 6, 2024
Int. Cl. G01D 5/20 (2006.01); G01B 7/004 (2006.01); G01B 7/30 (2006.01)
CPC G01D 5/204 (2013.01) [G01B 7/004 (2013.01); G01B 7/30 (2013.01)] 16 Claims
OG exemplary drawing
 
10. A controller, comprising:
a communication transceiver, configured to receive a sensing value of a magnetic field sensor;
a processor, coupled to the communication transceiver, and configured for:
determining a working position according to the sensing value, wherein the working position is a position of the magnetic field sensor relative to a magnetic field emitter; and
adjusting an electrical characteristic of the magnetic field emitter or the magnetic field sensor to a target characteristic corresponding to the working position, wherein the magnetic field emitter provides a plurality of power modes, and the processor is further configured for:
selecting a first power mode among the power modes according to the working position, wherein the first power mode meets the target characteristic corresponding to thereof; and
setting the electrical characteristic of the magnetic field emitter according to the first power mode.