WIRELESS DETONATION SYSTEM, RELAY DEVICE FOR WIRELESS DETONATION SYSTEM, AND WIRELESS DETONATION METHOD USING WIRELESS DETONATION SYSTEM

A wireless detonation system (1) includes a blasting operation device (40), a detonator (10), and a relay device (30). The blasting operation device (40) is disposed at a distance from a blasting face (71) and wirelessly transmits a first downstream signal at a first frequency. The detonator (10) is...

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Bibliographic Details
Main Authors YANAGI, Naoto, UCHIDA, Kohki, KOMODA, Takafumi, SHIMAZAKI, Kohichi, OGURA, Toshiyuki, WATANABE, Kazuhito
Format Patent
LanguageEnglish
Published 14.09.2023
Subjects
AMMUNITION
BLASTING
EARTH DRILLING
EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
FIXED CONSTRUCTIONS
GALLERIES
HEATING
LARGE UNDERGROUND CHAMBERS
LIGHTING
MECHANICAL ENGINEERING
MINING
SHAFTS
TUNNELS
WEAPONS
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Summary:A wireless detonation system (1) includes a blasting operation device (40), a detonator (10), and a relay device (30). The blasting operation device (40) is disposed at a distance from a blasting face (71) and wirelessly transmits a first downstream signal at a first frequency. The detonator (10) is loaded in a blast hole (72) in the blasting face (71), and has a receiving coil (12) for wirelessly receiving a second downstream signal at a second frequency lower than the first frequency. A relay device (30) includes a first transmitting-receiving antenna (35) that wirelessly receives the first downstream signal, a relay processor (32) that wirelessly receives the first downstream signal and processes it into the second downstream signal to be wirelessly transmitted at the second frequency, and a second transmitting-receiving antenna (37) that transmits the second downstream signal. The second transmitter-receiver antenna (37) is loaded into an insertion hole (74) in the blasting face (71) aligned with the blast hole (72).
Bibliography:Application Number: US202118015758