EP1456598B1 - Anlage für programmierbare pyrotechnische abschüsse - Google Patents

Anlage für programmierbare pyrotechnische abschüsse Download PDF

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Publication number
EP1456598B1
EP1456598B1 EP02793234A EP02793234A EP1456598B1 EP 1456598 B1 EP1456598 B1 EP 1456598B1 EP 02793234 A EP02793234 A EP 02793234A EP 02793234 A EP02793234 A EP 02793234A EP 1456598 B1 EP1456598 B1 EP 1456598B1
Authority
EP
European Patent Office
Prior art keywords
line
programming
firing
detonator
detonators
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02793234A
Other languages
English (en)
French (fr)
Other versions
EP1456598A1 (de
Inventor
Thierry Bernard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemical Holdings International Ltd
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Chemical Holdings International Ltd
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Filing date
Publication date
Application filed by Chemical Holdings International Ltd filed Critical Chemical Holdings International Ltd
Publication of EP1456598A1 publication Critical patent/EP1456598A1/de
Application granted granted Critical
Publication of EP1456598B1 publication Critical patent/EP1456598B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/045—Arrangements for electric ignition
    • F42D1/05—Electric circuits for blasting

Definitions

  • a fire campaign consists of making a plurality of holes in the rock, which is filled with explosives with a detonator for each firing. Some of these detonators are electronically controlled, which makes it possible to program the execution of the explosions according to a predetermined fire plan.
  • the execution of a fire plan therefore consists, after disposing of all the detonators in the drillings made and having connected them to a control unit, to identify each detonator by a sequence number and to apply to it a delay time which will determine the moment of ignition of the load compared to a general firing top.
  • the present invention relates to such an installation of programmable pyrotechnic shots in which all the detonators are connected to the control unit by son.
  • the document DE19912688 describes the preamble of claim 1.
  • an electronic detonator comprises a pyrotechnic primer, a power reserve, an electronic pilot and two electrical conductors that connect the electronic pilot to a firing line that travels on the ground from a central programming and control unit.
  • the electronic driver comprises an onboard microprocessor through which communication can take place between the detonator and the central unit.
  • the microprocessor is programmed or programmable to be able to receive requests issued in the firing line by the central unit and to respond to these requests either towards the central unit or towards the energy reserve it will release with a specified delay when the firing order is received from the Central Unit.
  • the programming of the microprocessor embedded in the electronic driver of the detonator can be done a priori before its implementation in the shooting range or, as is the case for the invention, a posteriori after being set up.
  • the firing line also serves to provide the electrical energy necessary to fill the energy reserve just before firing in order to satisfy the safety conditions requiring the detonators to be inactivated until the last moment.
  • a firing line may have a length of the order of one kilometer. For this reason, in current installations, it is relatively simple to transmit signals from the control unit to the address of each detonator as far as it can be from the control unit, since from the control unit fully controls the energy needed to provide these signals to reach their target. On the other hand, a detonator has very little embedded energy and if it is desired that it can respond to the central unit, it is found that the limited power of the signals it emits undergoes a strong attenuation which makes them almost inaudible. by the central unit if the detonator-transmitter is away from it on the firing line.
  • the present invention is a solution to this bidirectional communication problem between a central unit and each detonator of a firing line, a simple and economical solution.
  • the subject of the invention is a programmable pyrotechnic fire installation comprising a programming and firing control unit, a programming and control line comprising two conducting wires and a plurality of electronic detonators connected in parallel on this line.
  • the programming unit comprises means for establishing a DC voltage between two wires, means for generating pulses of this voltage to form coded signals, and means for reading current variations existing on the two-wire line while each detonator comprises an electronic module capable of generating, in response to some of the signals; encoded from the programming unit, corresponding to requests therefrom, pulses of current in the two-wire line to form coded signals.
  • a detonator when a detonator, regardless of its position on the firing line, has to respond to a request from the central unit, it will generate in the wire firing line overcurrent peaks, for example in closing the line on a resistor calibrated in a given time and this, according to a pulse program corresponding to a code generated by the onboard microprocessor, these overcurrent peaks being immediately detectable by the central unit which, by means of a resistor will convert them into a modulated voltage that can be interpreted by its microprocessor, this constituting the response of the detonator concerned to the request of this central unit.
  • holes 1 have been drilled in a rock 2 from, for example, soil 3.
  • detonators 4 and explosive charges 5 have been put in place, each detonator 4 being connected. to a line of fire on the ground 6 by conductors 7.
  • a central programming and control unit is represented at 8, connected to the firing line 6.
  • This unit 8 comprises a microprocessor 9 which acts on a device 10 for supplying a DC supply voltage between the two wires 6a, 6b of the line 6 and which makes it possible to insert into this DC voltage voltage drop sequences in order to form slots corresponding to any type of binary coding of a signal.
  • the central unit 8 is provided with a device 11 for converting voltage of the current flowing on the line 6a, 6b in order to make variations of this current comprehensible by the microprocessor 9.
  • the electronic driver 12 of the detonator shown schematically and partially at the figure 3 comprises a voltage regulator 13 whose input is connected to the line 6a, and the output to an onboard microprocessor 14, so as to constitute a supply of this microprocessor 14 increased with a capacity 15 to smooth the falls of the
  • This driver 12 also comprises a circuit 16 for detecting the codes conveyed by the line 6, the input of which is also connected to the line 6a and whose output is directed towards the microprocessor 14.
  • the electronic driver 12 has a current draw circuit 17 for example a transistor and a resistor, controlled by the microprocessor 14.
  • the microprocessor 14 controls a switch 18 of the line 6a, in a manner to be explained hereinafter.
  • Each of the detonators 4 is connected to the two-wire line 6a, 6b in parallel with it at point A, B ( figure 3 ).
  • the son 19 and 20 are used to connect the pilot son 6a and 6b of the firing line.
  • the line 6a has a section 23 internal to the pilot 12 which comprises the switch 18 and which emerges from the driver by the line 21 becoming 6a at the ground surface.
  • the line 6b has a section 24 internal to the pilot who the driver 22 out of the bore to form the wire 6b of the firing line at ground level.
  • the electronic drivers are connected one after the other. It is understood by this arrangement that the first detonator connected to the unit 8 is connected in series on the line 6a, 6b as the switch 18 is open. When the switch 18 is closed, this detonator is connected in parallel with the following on the line 6a, 6b.
  • the central unit 8 establishes a voltage for example 24 or 48 volts across the conductors 6a, 6b.
  • This voltage regulated by the device 13, constitutes the supply of the processor 14 as well as the load of the capacitor 15.
  • the microprocessor 9 of the central unit 8 transmits to the pilot 12 a sequence number recorded by the microprocessor 14, and a certain delay time.
  • the operating sequence of the microprocessor 9 may then comprise a request (a binary signal on the voltage of the line 6) to which the microprocessor 14 will respond by acting on the current draw circuit 17 to create overcurrent peaks which, converted by the device 11 will be assimilated as a response to its request by the microprocessor 9.
  • the last order transmitted by the microprocessor 9 to the embedded microprocessor 14 will be to close the switch 18.
  • the driver of the next detonator is in the same state with respect to of the CPU 8 that the previous driver and the programming sequence can start again.
  • the microprocessor 9 may include in its program other steps and other queries concerning the detonators. It will then transmit a general order to all the detonators to proceed with the charge of the energy reserve, not shown in the figures, followed if necessary by a verification of the state of this reserve and will finally transmit to all the detonators a top of firing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Supports For Pipes And Cables (AREA)
  • Storage Device Security (AREA)

Claims (2)

  1. Anlage für programmierbare pyrotechnische Abschüsse, welche eine Einheit (8) zur Programmierung und Steuerung der Abschüsse, eine Programmierungs- und Steuerungsleitung, die zwei Leitungsdrähte (6a, 6b) umfasst, und mehrere elektronische Zünder (4), die zu dieser zweidrähtigen Leitung parallelgeschaltet sind, umfasst, wobei die Einheit zur Programmierung (8) Mittel (9, 10) zur Erzeugung einer Gleichspannung zwischen den zwei Drähten (6a, 6b), Mittel (9, 10) zum Erzeugen von Impulsen dieser Spannung, um codierte Signale zu bilden, und Mittel (11, 9) zum Ablesen der Stromschwankungen, die auf der zweidrähtigen Leitung vorhanden sind, umfasst, dadurch gekennzeichnet, dass jeder Zünder (4) ein Elektronikmodul (12) umfasst, das Mittel (14, 17) besitzt, die geeignet sind, in Reaktion auf gewisse der codierten Signale der Einheit (8) zur Programmierung Stromimpulse in der zweidrähtigen Leitung (6a, 6b) zu erzeugen, um codierte Signale zu bilden.
  2. Anlage für Abschüsse nach Anspruch 1, dadurch gekennzeichnet, dass jedes Elektronikmodul (12) eines Zünders einen Unterbrecher (18) der zweidrähtigen Leitung (6a, 6b) umfasst, der normalerweise offen ist und in Reaktion auf ein Signal, das von der Einheit zur Programmierung (8) ausgesendet wird, geschlossen wird.
EP02793234A 2001-11-19 2002-11-14 Anlage für programmierbare pyrotechnische abschüsse Expired - Lifetime EP1456598B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0114916A FR2832501B1 (fr) 2001-11-19 2001-11-19 Installation de tirs pyrotechniques programmables
FR0114916 2001-11-19
PCT/FR2002/003891 WO2003044451A1 (fr) 2001-11-19 2002-11-14 Installation de tirs pyrotechniques programmables

Publications (2)

Publication Number Publication Date
EP1456598A1 EP1456598A1 (de) 2004-09-15
EP1456598B1 true EP1456598B1 (de) 2008-02-13

Family

ID=8869519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02793234A Expired - Lifetime EP1456598B1 (de) 2001-11-19 2002-11-14 Anlage für programmierbare pyrotechnische abschüsse

Country Status (9)

Country Link
US (1) US20050016407A1 (de)
EP (1) EP1456598B1 (de)
AT (1) ATE386250T1 (de)
AU (1) AU2002358894B2 (de)
CA (1) CA2467808C (de)
DE (1) DE60225055D1 (de)
FR (1) FR2832501B1 (de)
WO (1) WO2003044451A1 (de)
ZA (1) ZA200403856B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2417339A (en) * 2004-08-09 2006-02-22 Peter Shann Electric stock control and auditing of detonator use
PE20061261A1 (es) 2005-03-09 2006-12-16 Orica Explosives Tech Pty Ltd Sistema de voladura electronica
US20110174181A1 (en) * 2007-11-09 2011-07-21 Plummer Brady A Remote Explosion Detonation System
WO2010048587A1 (en) 2008-10-24 2010-04-29 Battelle Memorial Institute Electronic detonator system
US8082844B1 (en) * 2009-05-28 2011-12-27 Raytheon Company Acoustic crystal explosives
US8555768B1 (en) 2009-05-28 2013-10-15 Raytheon Company Shock wave barrier using multidimensional periodic structures

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES345935A1 (es) * 1966-11-12 1968-12-01 Wasagchemie Ag Una disposicion de circuito con tiristores y diodos de cua-tro capas para conmutadores de pasos.
US4527636A (en) * 1982-07-02 1985-07-09 Schlumberger Technology Corporation Single-wire selective perforation system having firing safeguards
AU3328084A (en) * 1983-10-05 1985-04-18 Johannesburg Construction Corp. Pty. Ltd. Electrical sequential firing system
EP0281722A1 (de) * 1987-03-10 1988-09-14 Nobel Kemi AB Unterwassersprengsystem
FR2695719B1 (fr) * 1992-09-17 1994-12-02 Davey Bickford Procédé de commande de détonateurs du type à module d'allumage électronique à retard intégré, ensemble codé de commande de tir et module d'allumage codé pour sa mise en Óoeuvre.
US5367957A (en) * 1993-03-31 1994-11-29 Texas Instruments Incorporated Tunable timing circuit and method for operating same and blasting detonator using same
DE4415388C1 (de) * 1994-05-02 1995-04-20 Euro Matsushita Electric Works Sprengkette
US6283227B1 (en) * 1998-10-27 2001-09-04 Schlumberger Technology Corporation Downhole activation system that assigns and retrieves identifiers
DE19909535C1 (de) * 1999-03-04 2000-09-07 Siemens Ag Datenübertragungsverfahren und -system, insbesondere in einem Kraftfahrzeug-Insassenschutzsystem
DE19912688B4 (de) * 1999-03-20 2010-04-08 Orica Explosives Technology Pty. Ltd., Melbourne Verfahren zum Austausch von Daten zwischen einer Einrichtung zur Programmierung und Auslösung elektronischer Zünder und den Zündern
CA2385517C (en) * 1999-09-27 2008-11-18 Orica Explosives Technology Pty Limited Triggering unit controlled by a microprocessor for initiating pyrotechnical elements

Also Published As

Publication number Publication date
CA2467808A1 (en) 2003-05-30
CA2467808C (en) 2009-12-22
AU2002358894B2 (en) 2009-09-03
DE60225055D1 (de) 2008-03-27
WO2003044451A1 (fr) 2003-05-30
AU2002358894A1 (en) 2003-06-10
ATE386250T1 (de) 2008-03-15
US20050016407A1 (en) 2005-01-27
FR2832501B1 (fr) 2004-06-18
ZA200403856B (en) 2006-06-28
EP1456598A1 (de) 2004-09-15
FR2832501A1 (fr) 2003-05-23

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