US 12,267,191 B2
Apparatus and method for correcting communication frequency of electronic detonator
Jeong Ho Choi, Cheongju-si (KR); and Se Ho Kim, Cheongju-si (KP)
Assigned to HANWHA CORPORATION, Seoul (KR)
Appl. No. 18/279,100
Filed by HANWHA CORPORATION, Seoul (KR)
PCT Filed Jul. 7, 2023, PCT No. PCT/KR2023/009647
§ 371(c)(1), (2) Date Aug. 28, 2023,
PCT Pub. No. WO2024/128445, PCT Pub. Date Jun. 20, 2024.
Claims priority of application No. 10-2022-0177010 (KR), filed on Dec. 16, 2022.
Prior Publication US 2025/0030582 A1, Jan. 23, 2025
Int. Cl. F42C 11/06 (2006.01); H04L 27/00 (2006.01)
CPC H04L 27/0014 (2013.01) [F42C 11/06 (2013.01); H04L 2027/0016 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An apparatus for correcting a communication frequency of an electronic detonator, the apparatus comprising:
a communication packet reception part configured to receive communication packets generated at a preset frequency transmitted from a main control device;
an oscillation frequency determination part configured to determine an oscillation frequency of an oscillator mounted in an microcontroller unit (MCU) of the electronic detonator by referring to the received communication packets; and
an oscillation frequency correction part configured to analyze the communication packets by correcting a shift of the determined oscillation frequency.