CA2467808A1 - Installation for programmable pyrotechnic shot firing - Google Patents

Installation for programmable pyrotechnic shot firing Download PDF

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Publication number
CA2467808A1
CA2467808A1 CA002467808A CA2467808A CA2467808A1 CA 2467808 A1 CA2467808 A1 CA 2467808A1 CA 002467808 A CA002467808 A CA 002467808A CA 2467808 A CA2467808 A CA 2467808A CA 2467808 A1 CA2467808 A1 CA 2467808A1
Authority
CA
Canada
Prior art keywords
programming
wire line
coded signals
unit
installation
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.)
Granted
Application number
CA002467808A
Other languages
French (fr)
Other versions
CA2467808C (en
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
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2467808A1 publication Critical patent/CA2467808A1/en
Application granted granted Critical
Publication of CA2467808C publication Critical patent/CA2467808C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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

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)

Abstract

The invention concerns an installation for programmable pyrotechnic shot firing comprising a unit (8) for programming and controlling the shot firing , a programming and control line including two conductor wires (6a, 6b) and a plurality of electronic detonators (12) mounted in parallel on said two-wire line. The invention is characterized in that the programming unit (8) comprises means (9, 10) for providing a direct current voltage between the t wo wires (6a, 6b), means (9, 10) for generating pulses of said voltage so as to form coded signals, and means (11, 9) for reading current variations occurri ng on the two-wire line while each detonator comprises an electronic module (12 ) including means (14, 17) for generating, in response to certain coded signal s of the programming unit (8), current pulses in the two-wire line (6a, 6b) to form coded signals.

Claims (2)

1. A programmable pyrotechnical firing installation comprising a programming and firing control unit (8), a programming and control line comprising two conductor wires (6a, 6b) and a plurality of electronic detonators (4) mounted in parallel on this two-wire line, characterised in that the programming unit (8) comprises means (9, 10) for establishing a continuous voltage between the two wires (6a, 6b), means (9, 10) for producing pulses of this voltage so as to form coded signals and means (11, 9) for reading the current variations existing on the two-wire line and in that every detonator comprises an electronic module (12) that has means (14, 17) suitable for producing, in response to certain of the coded signals of the programming unit (8), current pulses in the two-wire line (6a, 6b) for forming coded signals.
2. A firing installation according to claim 1, characterised in that every electronic detonator module (12) comprises a switch (18) of the two-wire line (6a, 6b), which normally is open and is closed in response to a signal emitted by the programming unit (8).
CA002467808A 2001-11-19 2002-11-14 Installation for programmable pyrotechnic shot firing Expired - Fee Related CA2467808C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR01/14916 2001-11-19
FR0114916A FR2832501B1 (en) 2001-11-19 2001-11-19 INSTALLATION OF PROGRAMMABLE PYROTECHNICAL SHOTS
PCT/FR2002/003891 WO2003044451A1 (en) 2001-11-19 2002-11-14 Installation for programmable pyrotechnic shot firing

Publications (2)

Publication Number Publication Date
CA2467808A1 true CA2467808A1 (en) 2003-05-30
CA2467808C CA2467808C (en) 2009-12-22

Family

ID=8869519

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002467808A Expired - Fee Related CA2467808C (en) 2001-11-19 2002-11-14 Installation for programmable pyrotechnic shot firing

Country Status (9)

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

Cited By (1)

* 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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PE20061261A1 (en) 2005-03-09 2006-12-16 Orica Explosives Tech Pty Ltd ELECTRONIC BLASTING SYSTEM
US20110174181A1 (en) * 2007-11-09 2011-07-21 Plummer Brady A Remote Explosion Detonation System
CA2741091C (en) 2008-10-24 2017-01-17 Battelle Memorial Institute Electronic detonator system
US8555768B1 (en) 2009-05-28 2013-10-15 Raytheon Company Shock wave barrier using multidimensional periodic structures
US8082844B1 (en) * 2009-05-28 2011-12-27 Raytheon Company Acoustic crystal explosives

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES345935A1 (en) * 1966-11-12 1968-12-01 Wasagchemie Ag Switching system for successive ignition of firing devices at delayed intervals
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 (en) * 1987-03-10 1988-09-14 Nobel Kemi AB A blasting system for underwater use
FR2695719B1 (en) * 1992-09-17 1994-12-02 Davey Bickford Method for controlling detonators of the type with integrated electronic delay ignition module, coded firing control assembly and coded ignition module for its implementation.
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 (en) * 1994-05-02 1995-04-20 Euro Matsushita Electric Works Detonating chain
US6283227B1 (en) * 1998-10-27 2001-09-04 Schlumberger Technology Corporation Downhole activation system that assigns and retrieves identifiers
DE19909535C1 (en) * 1999-03-04 2000-09-07 Siemens Ag Data transmission method and system, in particular in a motor vehicle occupant protection system
DE19912688B4 (en) * 1999-03-20 2010-04-08 Orica Explosives Technology Pty. Ltd., Melbourne Method for exchanging data between a device for programming and triggering electronic detonators and the detonators
AU776948B2 (en) * 1999-09-27 2004-09-30 Orica Explosives Technology Pty Ltd Triggering unit controlled by a microprocessor for initiating pyrotechnical elements

Cited By (1)

* 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

Also Published As

Publication number Publication date
EP1456598A1 (en) 2004-09-15
AU2002358894B2 (en) 2009-09-03
FR2832501B1 (en) 2004-06-18
ATE386250T1 (en) 2008-03-15
US20050016407A1 (en) 2005-01-27
FR2832501A1 (en) 2003-05-23
DE60225055D1 (en) 2008-03-27
CA2467808C (en) 2009-12-22
AU2002358894A1 (en) 2003-06-10
EP1456598B1 (en) 2008-02-13
ZA200403856B (en) 2006-06-28
WO2003044451A1 (en) 2003-05-30

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Legal Events

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EEER Examination request
MKLA Lapsed

Effective date: 20210831

MKLA Lapsed

Effective date: 20191114