![]() the condition and location within the borehole of each individual detonator is also obtained.An embodiment of the invention comprises an apparatus and a method for ascertaining the location of one or more boreholes in which one or more electric detonators are contained, checking the condition and characteristics of the detonators, and generating an electronic record of the condition of each detonator, including the date and time at which the data was gathered.the portable handheld unit incorporates a positional detecting device such as a GPS device.US 2005/0103219 Al published on May 19, 2005, discloses a blasting system to facilitate the actuation of a plurality of programmable detonators according to a desired blasting pattern, by downloading to the detonators blasting information which is automatically determined by a portable handheld unit. the spatial position of the detonators is measured using an electronic positioning system, preferably that of an inertial positioning system or a global positioning system.US 2005/0263027 Al published on December 1, 2005, discloses a method for controlling initiation of detonators by measuring the spatial position of the detonator in relation to one or more adjacent detonators and calculating the time of initiation of the detonator based upon its actual spatial position. the blast hole identification processor identifies the blast hole based on its geographic coordinate position.a GPS unit is operable to determine the position of the blast holes and a blast hole identification processor is in communication with the GPS unit to receive from the GPS unit a blast hole coordinate position.WO 2008/139413 Al published on 20 November 2008, discloses a system for loading a flowable explosive into blast holes from mobile supply units (trucks). ![]()
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