Patent ID: 7694627

Claim:
A method of establishing a blasting system in which a plurality of detonators are connected in a predetermined sequence in a consecutive train to an elongate harness which includes the steps of providing at least one marker between a first detonator in the sequence and a second detonator in the sequence thereby to distinguish the first detonator from the second detonator and interrogating the marker to establish information associated with the marker which information relates to at least one of the following: a) a class or category to which the marker belongs; b) the type of marker; c) a timing period for a detonator; d) information relating to a geological feature in an area in which the blasting system is established or used; e) information relating to a configuration or pattern of the blasting system; f) information relating to a designated feature in the blasting system; and g) information relating to a detonator or a class of detonators.