Wireless detonation system, relay device for wireless detonation system, and wireless detonation method using wireless detonation system

A wireless detonation system (1) has a blasting operation device (40), a detonator (10), and a relay device (30). The blasting operation device (40) is positioned at a distance from a work face (71) and transmits a first downlink wireless signal of a first frequency. The detonator (10) is loaded int...

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Bibliographic Details
Main Authors YANAGI, Naoto, UCHIDA, Kohki, KOMODA, Takafumi, SHIMAZAKI, Kohichi, OGURA, Toshiyuki, WATANABE, Kazuhito
Format Patent
LanguageEnglish
Published 23.02.2023
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) has a blasting operation device (40), a detonator (10), and a relay device (30). The blasting operation device (40) is positioned at a distance from a work face (71) and transmits a first downlink wireless signal of a first frequency. The detonator (10) is loaded into a gunpowder charging hole (72) in the work face (71) and comprises a receiving coil (12) that receives a second downlink wireless signal of a second frequency lower than the first frequency. The relay device (30) comprises: a first transmitting-receiving antenna (35) that receives the first downlink wireless signal; a relay processor (32) that performs reception processing on the first downlink wireless signal and performs transmission processing with the second downlink wireless signal of the second frequency; and a second transmitting-receiving antenna (37) that transmits the second downlink wireless signal. The second transmitting-receiving antenna (37) is loaded into an insertion hole (74) in the work face (71) by the side of the gunpowder charging hole (72).
Bibliography:Application Number: AU20210309601