EP 1234157 A1 20020828 - METHOD FOR EXCHANGING DATA BETWEEN A DEVICE FOR PROGRAMMING AND TRIGGERING ELECTRONIC DETONATORS AND SAID DETONATORS
Title (en)
METHOD FOR EXCHANGING DATA BETWEEN A DEVICE FOR PROGRAMMING AND TRIGGERING ELECTRONIC DETONATORS AND SAID DETONATORS
Title (de)
VERFAHREN ZUM AUSTAUSCH VON DATEN ZWISCHEN EINER EINRICHTUNG ZUR PROGRAMMIERUNG UND AUSLÖSUNG ELEKTRONISCHER ZÜNDER UND DEN ZÜNDERN
Title (fr)
PROCEDE D'ECHANGE DE DONNEES ENTRE UN DISPOSITIF DE PROGRAMMATION ET DE DECLENCHEMENT DE DETONATEURS ELECTRONIQUES ET LESDITS DETONATEURS
Publication
Application
Priority
- DE 19912688 A 19990320
- EP 0001820 W 20000302
Abstract (en)
[origin: DE19912688A1] Explosions are carried out in the mining of raw materials, whereby explosive charges are placed in numerous boreholes and are detonated in succession, according to a specific time frame. The electronic detonators (4a - 4c) of the explosive charges form an ignition system. Said electronic detonators are jointly connected to a programming and triggering device using a bus line (3). However, this leads to communication problems between a detonator and the programming and triggering device (2) in that the remaining detonators which are connected to the bus line present capacitive resistances which affect the transmission of the data. According to the invention, a direct current of a predetermined duration, which is greater than the current provided for generating signals, is applied to the ignition circuit (1) before an intended communication of a detonator with the device. The signals used to generate the data which is transmitted by the detonator as a response are subsequently generated with a lower current than the previously increased direct current and the direct current is increased again prior to the response of another detonator.
IPC 1-7
IPC 8 full level
F42D 1/055 (2006.01)
CPC (source: EP US)
F42D 1/055 (2013.01 - EP US)
Citation (search report)
See references of WO 0057125A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19912688 A1 20000921; DE 19912688 B4 20100408; AU 3657000 A 20001009; AU 773790 B2 20040603; BR 0009165 A 20011226; BR 0009165 B1 20121030; CA 2393565 A1 20000928; CA 2393565 C 20080722; CN 1111720 C 20030618; CN 1345411 A 20020417; EP 1234157 A1 20020828; EP 1234157 B1 20030820; JP 2002540373 A 20021126; JP 4361701 B2 20091111; MX PA01009389 A 20030606; NO 20014075 D0 20010822; NO 20014075 L 20010822; NO 320807 B1 20060130; US 6637339 B1 20031028; WO 0057125 A1 20000928; ZA 200107769 B 20020920
DOCDB simple family (application)
DE 19912688 A 19990320; AU 3657000 A 20000302; BR 0009165 A 20000302; CA 2393565 A 20000302; CN 00805282 A 20000302; EP 0001820 W 20000302; EP 00915162 A 20000302; JP 2000606952 A 20000302; MX PA01009389 A 20000302; NO 20014075 A 20010822; US 93693602 A 20020123; ZA 200107769 A 20010920