Davey Bickford

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Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Franck Guyon

Raphael Trousselle

Lionel Biard

Samir Bouamar

Ghislain Despesse

Vincent Berg

Mélanie Descharles

Michel Boulmeau

Arthur Poudre

Raphaël Trousselle

Lou Dumanoir

Bernard Piaget

Stephanus Johannes Marais Combrinck

A method for installing a set of electronic detonators in blast holes of a mining face includes the following steps: connecting detonators, charged into the blast holes, to a movable test device; receiving, by the movable test device, a message sent by each detonator; determining, from that message, a set of values, representing the total number of detonators connected to the movable test device; sending, to one or more detonators of the set, a data set to store including the set of values representing the total number of detonators connected to the movable test device; and storing the data set in the memory of one or more detonators of the set of electronic detonators. Use for later verification of the connection of the detonators before firing.

Method for installing a set of electronic detonators and associated ignition method

A wireless electronic detonator includes a primary source of energy and at least one functional module. A power switch is disposed between the primary source of energy and the functional module to connect or disconnect the functional module and the primary source of energy. A controller controls the power switch and includes an optical receiver to detect and demodulate a light signal emitted by a control console, The controller generates a control signal according to the demodulated light signal to at least control the power switch. A wireless detonation system includes the wireless electronic detonator and the control console configured to emit a light signal, and method for activating the wireless electronic detonator.

Wireless electronic detonator comprising a power switch controlled by an optical signal, wireless detonation system and method for activating such a detonator

A wireless electronic detonator includes an energy source and functional modules. A first switching switch is provided between the energy source and the functional modules, making it possible to connect or not connect the energy source to the functional modules. A control module for controlling the first switching means includes a module for recovering radio energy configured to receive a radio signal from a control console, to recover the electric energy in the radio signal received, to generate an energy recovery signal (VRF) representative of the level of electric energy recovered, and to generate as output a control signal (VOUT) as a function of the recovered energy, the control signal controlling the first switch.

Wireless electronic detonator

Disclosed is a method for firing an electronic detonator including a power storage unit including receiving, via the electronic detonator, a firing order. The following steps are implemented as long as the delay time associated with the electronic detonator has not elapsed since the reception of the firing order: measuring power stored in the power storage unit, and firing the electronic detonator when the measured stored power is less than or equal to a predetermined power.

Electronic detonator firing method, and electronic detonator

A fire control unit includes a control module and first terminals that are designed to receive a firing line to which a set of electronic detonators is linked additionally includes second terminals that are designed to receive a synchronization line to which a second fire control unit is linked, and a switch that may be configured according to multiple configurations such that the controller may be connected to or disconnected from the first terminals or the second terminals, respectively, and that the first terminals and the second terminals may be connected to or disconnected from one another.

Fire control unit for a set of detonators and firing system

A system for controlling at least one electronic detonator generates, as output, an output power supply signal intended to power the at least one electronic detonator and generating commands to fire the at least one electronic detonator, the control system including a control module configured to generate firing commands and to generate a first power supply signal. The control system further includes a power supply module generating a second power supply signal intended to power the at least one electronic detonator, the output power supply signal corresponding to the second power supply signal once a command to fire the at least one electronic detonator has been generated, and corresponding to the first power supply signal as long as no firing command has been generated.

System for controlling at least one electronic detonator

An electronic detonator () designed to be connected by two conducting wires (a, b) to an associated control system (), the conducting wires (a, b) including a charged plastic material and exhibiting a first resistance. The electronic detonator () includes supervision elements () and resistive elements () disposed between the two conducting wires (a, b), the resistive element () exhibiting a second resistance, the second value of resistance being determined by the supervision elements () in such a way that the sum of the values of the first resistance and of the second resistance is a predetermined value.

Electronic detonator

A system for triggering includes a plurality of electronic detonator assemblies (), where each electronic detonator assembly () is connected to a leading wire () linked to a local fire control unit (). At least one of the local fire control units (S) includes an electronic synchronization module () connected to a leading wire linked to a master local fire control unit (M), which is one of the local fire control units (). The system is suitable for use in triggering a plurality of electronic detonator assemblies () according to a single blasting pattern.

System for triggering a plurality of electronic detonator assemblies

A system for programming and lighting electronic detonators () each having an identifier (ID) associated therewith, includes: a programming unit () arranged to determine the identifiers of the detonators () and to associate the detonators individually, in memory, with a lighting time delay (T) in order to form a blasting pattern (PT); a blasting unit () arranged to recover the blasting pattern (PT) from the memory () of the programming unit (), and to control a blasting sequence of the detonators according to the recovered blasting pattern; and the programming unit () includes: a passive RFID tag () provided with a chip () acting as a memory for storing the blasting pattern (PT), and a radiofrequency reader () arranged such as to read/write passive tags. A corresponding method is also described.

System for programming and lighting electronic detonators and associated method

A pyroelectronic detonator () includes an electronic circuit for at least controlling the detonator ignition by supplying igniting current to an electrothermal bridge () and at least one electronic shunting element () directly connected to the bridge (), wherein the shunting element () is controllable between the closed low-electric resistance state of the shunt and the open high electric resistance state thereof and the electronic circuit () controls the states. The shunt is constructed in such a way that it can be monostable and bistable.

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Auxerre, France

Franck Guyon