초록 ▼

This invention relates to a detonator firing circuit comprising a control unit and a plurality of detonator circuits. The detonator circuits are arranged to simultaneously receive a "fire" signal and the fire signal initiates all the delay arrangements to allow different groups of detonators to deto

This invention relates to a detonator firing circuit comprising a control unit and a plurality of detonator circuits. The detonator circuits are arranged to simultaneously receive a "fire" signal and the fire signal initiates all the delay arrangements to allow different groups of detonators to detonate at different times in accordance with a predetermined firing program. In the present invention each detonator circuit has a code individual thereto and the control unit can control and transmit information to every detonator circuit, including the delay to be imparted to the detonator circuit. The identification code for each detonator circuit is preferably one of a large number of identification codes so that the likelihood of the two detonator circuits having the same identification code and having the same firing circuit is extremely small.

대표청구항 ▼

[ I claim:] [1.] A detonator firing circuit comprising:a control unit (11) anda plurality of detonator circuits (13), each unit including at least one detonator, linked to said control unit to receive signals therefrom, wherein each detonator circuit (13) has a code individual thereto and positively

[ I claim:] [1.] A detonator firing circuit comprising:a control unit (11) anda plurality of detonator circuits (13), each unit including at least one detonator, linked to said control unit to receive signals therefrom, wherein each detonator circuit (13) has a code individual thereto and positively identifying that detonator circuit, the identification code is one of a substantial multiplicity of codes in a set, and the control unit (11) can communicate information to a particular detonator circuit (13) by identifying the detonator circuit (13) with the identification code individual to that detonator circuit (13), characterised in that the identification code of each detonator circuit (13) and a delay for each detonator is supplied to said control unit (11) via coupling of a portable device (15) to the control unit prior to the control unit communicating information to a particular detonator circuit.