WO2001092812A1 - Dual redundancy system for electronic detonators - Google Patents

Dual redundancy system for electronic detonators Download PDF

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Publication number
WO2001092812A1
WO2001092812A1 PCT/ZA2001/000058 ZA0100058W WO0192812A1 WO 2001092812 A1 WO2001092812 A1 WO 2001092812A1 ZA 0100058 W ZA0100058 W ZA 0100058W WO 0192812 A1 WO0192812 A1 WO 0192812A1
Authority
WO
WIPO (PCT)
Prior art keywords
detonator
circuit
redundancy
main
housing
Prior art date
Application number
PCT/ZA2001/000058
Other languages
French (fr)
Inventor
Erich Nicol Meyer
Pieter Franciscus Zuidmeer
Original Assignee
Smi Technology (Pty) Limited
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 Smi Technology (Pty) Limited filed Critical Smi Technology (Pty) Limited
Priority to MXPA02011833A priority Critical patent/MXPA02011833A/en
Priority to BR0111134-5A priority patent/BR0111134A/en
Priority to US10/275,482 priority patent/US7100511B2/en
Priority to AU63529/01A priority patent/AU775546B2/en
Priority to CA002410874A priority patent/CA2410874C/en
Priority to EP01937834A priority patent/EP1287307B1/en
Priority to DE60113103T priority patent/DE60113103T2/en
Publication of WO2001092812A1 publication Critical patent/WO2001092812A1/en

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F42B3/121—Initiators with incorporated integrated circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F42C11/06—Electric fuzes with time delay by electric circuitry

Definitions

  • THIS invention relates to detonators, more particularly electrical and electronic detonators, initiation systems comprising such detonators and to a method of manufacturing the detonator and/or the system.
  • Detonator assemblies comprising an electrical or an electronic detonator connected via lead wires to a harness are known in the art.
  • a plurality of such assemblies are connected via the harness to a blast controller and located in respective blast holes of a blast site.
  • the blast controller is used to control the detonators and to cause them to detonate in a particular sequence and pattern, to cause a desired multi-shot blast pattern.
  • a detonator comprising a housing; a main circuit comprising an electrically operable fuse located in the housing; and at least a first redundancy circuit wherein at least one element of the main circuit is duplicated, also located in the housing.
  • the detonator may be an electric detonator, alternatively an electronic detonator.
  • the main circuit may comprise the fuse, a charge storage device and a controller.
  • the charge storage device may be a capacitor and the controller may be micro-processor based and may further comprise associated memory circuitry, delay time determining circuitry and data communications circuitry.
  • the redundancy circuit may be a full redundancy circuit comprising a fuse, a charge storage device and a local controller. In other embodiments, further levels of full or partial redundancy may be provided.
  • the main circuit and redundancy circuit may be provided on a single printed circuit board.
  • the main circuit and redundancy circuit may be provided on one face of the board, in other embodiments they may be provided on both faces and in yet other embodiments the main circuit may be provided on the one face and the redundancy circuit may be provided on the other face.
  • the main circuit may be provided on a first printed circuit board and the redundancy circuit may be provided on a second printed circuit board, both printed circuit boards being located in the housing.
  • a detonator assembly comprising a detonator as hereinbefore defined; a connector and a connection cable extending between the connector and the detonator.
  • the connector and/or the connection cable may also comprise at least a first level of redundancy.
  • the connection cable may comprise a main conductor arrangement and a first redundancy conductor arrangement extending between the detonator and the connector.
  • the connector may comprise a main set of contacts and a first set of redundancy contacts both connected to the first conductor arrangement, or to respective ones of the conductor arrangements, or to both conductor arrangements.
  • a blast controller comprising a housing: a main circuit located in the housing and connectable to an output for communicating with and controlling detonators connected to the output; and a first redundancy circuit wherein at least one element of the main circuit is duplicated, also located in the housing and connectable to the output.
  • the first redundancy circuit may comprise a full duplication of all the elements of the main circuit, so that it is a full redundancy circuit.
  • the main circuit and the first redundancy circuit may each comprise circuit status monitor means connected to a central controller, the central controller being operative in response to signals from the circuit status monitor means, to connect either the main circuit or the first redundancy circuit to the output of the blast controller.
  • a initiation system comprising a blast controller as hereinbefore defined; and a plurality of detonator assemblies also as hereinbefore defined, the assemblies being connected to a harness connected to the output of the blast controller.
  • the harness may also comprise at least a first level of redundancy.
  • the invention also includes within its scope a harness having at least a first level of redundancy.
  • a method of producing a component such as a detonator, blast controller etc of an electrically controllable detonator initiation system, the method comprising the steps of providing a housing for the component; providing a main circuit of the component in the housing; and - providing a first redundancy circuit in the housing, the first redundancy circuit comprising at least one element of the main circuit duplicated in the redundancy circuit.
  • figure 1 is a block diagram of an electronic detonator assembly according to the invention
  • figure 2 is a block diagram of an initiation system including a blast controller, both according to the invention.
  • a detonator assembly according to the invention is generally designated by the reference numeral 1 0 in figure 1 .
  • the detonator assembly comprises a housing 1 2 for a printed circuit (PC) board 14.
  • a main circuit 1 1 comprising a detonator bridge or fuse 1 6.
  • a first redundancy circuit 1 3 comprising a second bridge 1 8 is also provided on the board.
  • the bridge 1 6 and bridge 1 8 may be provided on the same face of the PC board, alternatively on opposite faces thereof.
  • the circuit 1 1 and circuit 1 3 may be provided on the same face of the PC board, alternatively on opposite faces thereof.
  • the main circuit 1 1 comprises a charge storage capacitor 20.
  • the capacitor 20 and bridge 1 6 are charged and controlled respectively in known manner by a controller embodied in a main application specific integrated circuit (ASIC) 23.
  • ASIC application specific integrated circuit
  • the ASIC 23 comprises electronic circuitry including a microprocessor based controller (not shown), associated memory arrangements (not shown), digital delay time determining means (not shown) and digital circuitry (also not shown) enabling and facilitating digital data communications between the controller and an external device, such as a blast controller 24, shown in figure 2.
  • a microprocessor based controller not shown
  • associated memory arrangements not shown
  • digital delay time determining means not shown
  • digital circuitry also not shown
  • the capacitor 22 and bridge 1 8 of redundancy circuitry 1 3 are charged and controlled respectively by a similar and first redundancy ASIC 26.
  • Input resistors 28 and 30 for ASIC 23 and redundancy ASIC 26 respectively are also provided on the PC board 14.
  • the redundancy circuit 13 comprising bridge 1 8, capacitor 22, ASIC 26 and input resistors 30 may be provided on a second and separate PC board (not shown), but which is located in the same housing 1 2.
  • the input resistors 28 and 30 are connected via a main and first backup lead in the form of twisted pairs 32 and 34 to a connector 36.
  • protection arrangements may also be provided between the ASIC's and conductors 32 and 34.
  • the connector 36 comprises a main set of contacts 36.1 for twisted pair 32 and a first set of redundancy contacts 36.2 for twisted pair 34.
  • the blast controller 24 is shown in figure 2. In use, it is positioned remote from the blast face 37 and blast holes 38.1 to 38. n.
  • a detonator assembly 10 as hereinbefore described and comprising at least one level of partial or full redundancy circuitry as hereinbefore described is located in known manner.
  • detonator assembly 10.1 for first hole 38.1 and detonator assembly 10.n for the n th hole 38. n are shown.
  • the detonator arrangements 10.1 to 10.n are connected to the blast controller 24 by at least a first level of redundancy harness 40 comprising cables 40.1 and 40.2 and respective contacts 36.1 and 36.2 as hereinbefore described.
  • the blast controller 24 may also be provided with any desired level of redundancy to pitch the reliability of the initiation system 42 at a desired level.
  • a blast controller 24 with a first level of redundancy is shown, merely as an example.
  • the blast controller 24 comprises a battery 44, battery management means 46, a main power supply unit 48 for the blast controller 24 and a back-up power supply unit 50 for the blast controller 24.
  • the blast controller 24 further comprises a micro-processor based controller 52 operable to control a main branch 54 and a first back-up or redundancy branch 56.
  • the main branch includes a modulator/demodulator 58 for data signals (preferably digital) to be transmitted to the detonator assemblies 10.1 to 10.n and to be received therefrom.
  • a power amplifier 60 amplifies the relevant signals.
  • a branch status monitor circuit 62 connected to the processor 52 monitors the status of the main branch 54.
  • the main branch 54 and back-up branch are connected to a switching circuit 64, for example in the form of a double pole change over relay, to connect, under control of the controller 52 and depending on the status of the branches, the one branch 54 or the other branch 56 via output 72 to the harness 40.
  • the other branch 56 is similar to the main branch 54 and a feed-back loop 66 is provided between branch status monitor circuits 62, 68 and the controller 52.
  • the controller 52 controls the switching circuit 64 via line 70 in response to status signals received from status monitor circuits 62 and 68. Should there be a fault or failure in branch 54, the controller automatically causes switching circuit 64 to switch back-up branch 56 to be connected via the output to harness 40, to communicate with and control the detonator assemblies 10.1 to 10.n.
  • the invention provides a single detonator assembly 10 which has a first level or higher of full or partial redundancy. Furthermore, the blast controller 24 has parallel branches 54 and 56 one of which may automatically be elected by the controller, to provide back-up and hence improved reliability.
  • the invention also extends to a method of manufacturing detonator assemblies 10 and a blast controller 24 having at least a first level of full or partial redundancy as hereinbefore described. This means that at least essential parts of a main circuit is duplicated in a parallel back-up or redundancy circuit.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
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Abstract

A detonator assembly (10) comprising a housing (12) disclosed and claimed. The assembly comprises an main circuit (11) comprising an electrically operable fuse (16) located in the housing. The assembly further comprises at least a first redundancy circuit (13) wherein at least one element of the main circuit is duplicated (18 for 16) also located in the housing. The invention also includes within its scope an initiation system (42) comprising at least one level of redundancy which may be in one or more or all of a blast controller (24), a harness (40) and detonator assemblies 10.1 to 10.n forming part of the system.

Description

DUAL REDUNDANCY SYSTEM FOR ELECTRONIC DETONATORS
TECHNICAL FIELD
THIS invention relates to detonators, more particularly electrical and electronic detonators, initiation systems comprising such detonators and to a method of manufacturing the detonator and/or the system.
BACKGROUND ART
Detonator assemblies comprising an electrical or an electronic detonator connected via lead wires to a harness are known in the art.
In use, a plurality of such assemblies are connected via the harness to a blast controller and located in respective blast holes of a blast site. The blast controller is used to control the detonators and to cause them to detonate in a particular sequence and pattern, to cause a desired multi-shot blast pattern.
Due to certain reliability problems with the detonator assemblies, it is the practice in some countries to place in each blast hole a first detonator assembly as well as a second, parallel or back-up detonator assembly. It will be appreciated that the provision and connecting of a separate, parallel back-up detonator assembly not only take up unnecessary time, but are cumbersome and errors may occur in the connection of the back-up assembly.
OBJECT OF THE INVENTION Accordingly, it is an object of the present invention to provide a detonator assembly, a initiation system and a method of manufacturing the detonator assembly and system with which the applicant believes the aforementioned disadvantages may at least be alleviated.
SUMMARY OF THE INVENTION
According to the invention there is provided a detonator comprising a housing; a main circuit comprising an electrically operable fuse located in the housing; and at least a first redundancy circuit wherein at least one element of the main circuit is duplicated, also located in the housing.
The detonator may be an electric detonator, alternatively an electronic detonator.
The main circuit may comprise the fuse, a charge storage device and a controller. The charge storage device may be a capacitor and the controller may be micro-processor based and may further comprise associated memory circuitry, delay time determining circuitry and data communications circuitry.
The redundancy circuit may be a full redundancy circuit comprising a fuse, a charge storage device and a local controller. In other embodiments, further levels of full or partial redundancy may be provided.
The main circuit and redundancy circuit may be provided on a single printed circuit board. The main circuit and redundancy circuit may be provided on one face of the board, in other embodiments they may be provided on both faces and in yet other embodiments the main circuit may be provided on the one face and the redundancy circuit may be provided on the other face. In yet other embodiments the main circuit may be provided on a first printed circuit board and the redundancy circuit may be provided on a second printed circuit board, both printed circuit boards being located in the housing.
Further included within the scope of the present invention is a detonator assembly comprising a detonator as hereinbefore defined; a connector and a connection cable extending between the connector and the detonator. The connector and/or the connection cable may also comprise at least a first level of redundancy. For example, the connection cable may comprise a main conductor arrangement and a first redundancy conductor arrangement extending between the detonator and the connector. Similarly, the connector may comprise a main set of contacts and a first set of redundancy contacts both connected to the first conductor arrangement, or to respective ones of the conductor arrangements, or to both conductor arrangements.
Still further included within the scope of the present invention is a blast controller comprising a housing: a main circuit located in the housing and connectable to an output for communicating with and controlling detonators connected to the output; and a first redundancy circuit wherein at least one element of the main circuit is duplicated, also located in the housing and connectable to the output.
The first redundancy circuit may comprise a full duplication of all the elements of the main circuit, so that it is a full redundancy circuit. The main circuit and the first redundancy circuit may each comprise circuit status monitor means connected to a central controller, the central controller being operative in response to signals from the circuit status monitor means, to connect either the main circuit or the first redundancy circuit to the output of the blast controller.
Yet further included within the scope of the present invention is a initiation system comprising a blast controller as hereinbefore defined; and a plurality of detonator assemblies also as hereinbefore defined, the assemblies being connected to a harness connected to the output of the blast controller.
The harness may also comprise at least a first level of redundancy.
The invention also includes within its scope a harness having at least a first level of redundancy.
Also included within the scope of the invention is a method of producing a component (such as a detonator, blast controller etc) of an electrically controllable detonator initiation system, the method comprising the steps of providing a housing for the component; providing a main circuit of the component in the housing; and - providing a first redundancy circuit in the housing, the first redundancy circuit comprising at least one element of the main circuit duplicated in the redundancy circuit. BRIEF DESCRIPTION OF THE ACCOMPANYING DIAGRAMS
The invention will now further be described, by way of example only, with reference to the accompanying diagrams wherein: figure 1 is a block diagram of an electronic detonator assembly according to the invention; and figure 2 is a block diagram of an initiation system including a blast controller, both according to the invention.
DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION A detonator assembly according to the invention is generally designated by the reference numeral 1 0 in figure 1 .
The detonator assembly comprises a housing 1 2 for a printed circuit (PC) board 14. On the PC board there is provided a main circuit 1 1 comprising a detonator bridge or fuse 1 6. A first redundancy circuit 1 3 comprising a second bridge 1 8 is also provided on the board. The bridge 1 6 and bridge 1 8 may be provided on the same face of the PC board, alternatively on opposite faces thereof. Similarly, the circuit 1 1 and circuit 1 3 may be provided on the same face of the PC board, alternatively on opposite faces thereof. The main circuit 1 1 comprises a charge storage capacitor 20. The capacitor 20 and bridge 1 6 are charged and controlled respectively in known manner by a controller embodied in a main application specific integrated circuit (ASIC) 23. The ASIC 23 comprises electronic circuitry including a microprocessor based controller (not shown), associated memory arrangements (not shown), digital delay time determining means (not shown) and digital circuitry (also not shown) enabling and facilitating digital data communications between the controller and an external device, such as a blast controller 24, shown in figure 2.
The capacitor 22 and bridge 1 8 of redundancy circuitry 1 3 are charged and controlled respectively by a similar and first redundancy ASIC 26.
Input resistors 28 and 30 for ASIC 23 and redundancy ASIC 26 respectively are also provided on the PC board 14.
In other embodiments the redundancy circuit 13 comprising bridge 1 8, capacitor 22, ASIC 26 and input resistors 30 may be provided on a second and separate PC board (not shown), but which is located in the same housing 1 2. The input resistors 28 and 30 are connected via a main and first backup lead in the form of twisted pairs 32 and 34 to a connector 36. In other embodiments protection arrangements (not shown) may also be provided between the ASIC's and conductors 32 and 34.
The connector 36 comprises a main set of contacts 36.1 for twisted pair 32 and a first set of redundancy contacts 36.2 for twisted pair 34.
The blast controller 24 is shown in figure 2. In use, it is positioned remote from the blast face 37 and blast holes 38.1 to 38. n.
In each hole, a detonator assembly 10 as hereinbefore described and comprising at least one level of partial or full redundancy circuitry as hereinbefore described is located in known manner. In figure 2, detonator assembly 10.1 for first hole 38.1 and detonator assembly 10.n for the nth hole 38. n are shown.
The detonator arrangements 10.1 to 10.n are connected to the blast controller 24 by at least a first level of redundancy harness 40 comprising cables 40.1 and 40.2 and respective contacts 36.1 and 36.2 as hereinbefore described. According to the invention, the blast controller 24 may also be provided with any desired level of redundancy to pitch the reliability of the initiation system 42 at a desired level. In figure 2, a blast controller 24 with a first level of redundancy is shown, merely as an example.
The blast controller 24 comprises a battery 44, battery management means 46, a main power supply unit 48 for the blast controller 24 and a back-up power supply unit 50 for the blast controller 24.
The blast controller 24 further comprises a micro-processor based controller 52 operable to control a main branch 54 and a first back-up or redundancy branch 56.
The main branch includes a modulator/demodulator 58 for data signals (preferably digital) to be transmitted to the detonator assemblies 10.1 to 10.n and to be received therefrom. A power amplifier 60 amplifies the relevant signals. A branch status monitor circuit 62 connected to the processor 52 monitors the status of the main branch 54. The main branch 54 and back-up branch are connected to a switching circuit 64, for example in the form of a double pole change over relay, to connect, under control of the controller 52 and depending on the status of the branches, the one branch 54 or the other branch 56 via output 72 to the harness 40.
The other branch 56 is similar to the main branch 54 and a feed-back loop 66 is provided between branch status monitor circuits 62, 68 and the controller 52. The controller 52 controls the switching circuit 64 via line 70 in response to status signals received from status monitor circuits 62 and 68. Should there be a fault or failure in branch 54, the controller automatically causes switching circuit 64 to switch back-up branch 56 to be connected via the output to harness 40, to communicate with and control the detonator assemblies 10.1 to 10.n.
The invention provides a single detonator assembly 10 which has a first level or higher of full or partial redundancy. Furthermore, the blast controller 24 has parallel branches 54 and 56 one of which may automatically be elected by the controller, to provide back-up and hence improved reliability.
The invention also extends to a method of manufacturing detonator assemblies 10 and a blast controller 24 having at least a first level of full or partial redundancy as hereinbefore described. This means that at least essential parts of a main circuit is duplicated in a parallel back-up or redundancy circuit.
It will be appreciated that there are many variations in detail on the detonator assembly, harness, initiation system, blast controller and method of manufacture as herein described without departing from the scope and spirit of the appended claims.

Claims

Claims
1 . A detonator comprising a housing; a main circuit comprising an electrically operable fuse located in the housing; and at least a first redundancy circuit wherein at least one element of the main circuit is duplicated, also located in the housing.
2. A detonator as claimed in claim 1 wherein the detonator is an electronic detonator.
3. A detonator as claimed in claim 1 or claim 2 wherein the main circuit comprises a charge storage device and a local controller.
4. A detonator as claimed in claim 3 wherein the charge storage device comprises a capacitor and the controller is microprocessor based and further comprises associated memory circuitry, delay time determining circuitry and data communications circuitry.
5. A detonator as claimed in claim 3 or claim 4 wherein the redundancy circuit is a full redundancy circuit comprising a fuse, a charge storage device and a controller.
6. A detonator assembly comprising a detonator as claimed in any one of claims 1 to 5, a connector and a connection cable extending between the connector and the detonator.
7. A detonator assembly as claimed in claim 6 wherein the connection cable comprises a main conductor arrangement and a first redundancy conductor arrangement.
8. A detonator assembly as claimed in claim 7 wherein the connector comprises a main set of contacts connected to the main conductor arrangement and a first set of redundancy contacts connected to the first redundancy conductor arrangement.
9. A detonator arrangement as claimed in claim 8 wherein the main and first redundancy conductor arrangements comprise first and second twisted pairs respectively, wherein the firs.t twisted pair is connected at one end thereof to the main set of contacts and at another end thereof to the main circuit and the first redundancy circuit, and wherein the second twisted pair is connected at one end thereof to the first set of redundancy contacts and at another end thereof to the main circuit and the first redundancy circuit.
10. A blast controller comprising a housing: a main circuit located in the housing and connectable to an output for communicating with and controlling detonators connected to the output; and a first redundancy circuit wherein at least one element of the main circuit is duplicated, also located in the housing and connectable to the output.
1 1 . A blast controller as claimed in claim 10 wherein the main circuit and the first redundancy circuit each comprises circuit status monitor means connected to a central controller, the central controller being operative in response to signals from the circuit status monitor means, to connect either the main circuit or the first redundancy circuit to the output of the blast controller.
1 2. An initiation system comprising a blast controller as defined in any of claims 1 0 and 1 1 ; and a plurality of detonator assemblies as claimed in any one of claims 6 to 9, the assemblies being connected to a harness connected to the output of the blast controller.
13. A harness comprising a main path for electronic signals and a first redundancy path for such signals.
14. A detonator initiation system comprising a blast controller and at least one detonator connectable to the blast controller, at least one of the blast controller and the detonator comprising a main circuit located in a housing therefor and a first redundancy circuit wherein at least one element of the main circuit is duplicated and located in the housing.
1 5. A system as claimed in claim 1 4 wherein the detonator is connected to the blast controller by a harness and wherein the harness comprises a main path for signals between the blast controller and the detonator and a first redundancy path for the signals.
1 6. A method of producing a component of an electrically controllable detonator initiation system, the method including the steps of: providing a housing for the component; providing a main circuit of the component in the housing; and providing a first redundancy circuit in the housing, the first redundancy circuit comprising at least one element of the main circuit duplicated in the redundancy circuit.
PCT/ZA2001/000058 2000-06-02 2001-05-18 Dual redundancy system for electronic detonators WO2001092812A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
MXPA02011833A MXPA02011833A (en) 2000-06-02 2001-05-18 Dual redundancy system for electronic detonators.
BR0111134-5A BR0111134A (en) 2000-06-02 2001-05-18 Detonator, detonator assembly, explosion controller, initiation system, wire harness, and method for producing a component of an electrically controllable detonator initiation system
US10/275,482 US7100511B2 (en) 2000-06-02 2001-05-18 Dual redundancy system for electronic detonators
AU63529/01A AU775546B2 (en) 2000-06-02 2001-05-18 Dual redundancy system for electronic detonators
CA002410874A CA2410874C (en) 2000-06-02 2001-05-18 Dual redundancy system for electronic detonators
EP01937834A EP1287307B1 (en) 2000-06-02 2001-05-18 Dual redundancy system for electronic detonators
DE60113103T DE60113103T2 (en) 2000-06-02 2001-05-18 DOUBLE REDUNDANT SYSTEM FOR ELECTRONIC IGNITORS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200002769 2000-06-02
ZA2000/2769 2000-06-02

Publications (1)

Publication Number Publication Date
WO2001092812A1 true WO2001092812A1 (en) 2001-12-06

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ID=25588773

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2001/000058 WO2001092812A1 (en) 2000-06-02 2001-05-18 Dual redundancy system for electronic detonators

Country Status (10)

Country Link
US (1) US7100511B2 (en)
EP (1) EP1287307B1 (en)
AU (1) AU775546B2 (en)
BR (1) BR0111134A (en)
CA (1) CA2410874C (en)
DE (1) DE60113103T2 (en)
ES (1) ES2248335T3 (en)
MX (1) MXPA02011833A (en)
PE (1) PE20020086A1 (en)
WO (1) WO2001092812A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2062007A1 (en) * 2006-09-19 2009-05-27 Mas Zengrange (NZ) Ltd Remote initiator for the remote initiation of explosive charges
CN107478112A (en) * 2017-09-21 2017-12-15 中国工程物理研究院电子工程研究所 A kind of highly reliable in-line arrangement fuse and its control method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019218100A1 (en) * 2018-05-18 2019-11-21 Chen Mo Electronic detonator connector and electronic detonator configuration method based on same
CN108709466B (en) * 2018-05-23 2019-12-10 中国电子科技集团公司第五十四研究所 Electronic detonator signal receiving circuit
DE102018128485B4 (en) * 2018-11-14 2022-05-05 Rheinmetall Waffe Munition Gmbh Electronic detonator unit for an irritation body and irritation body

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998776A (en) * 1958-06-20 1961-09-05 Paul B Morgan Reliable battery power supply
US3227083A (en) * 1964-01-30 1966-01-04 Holex Inc Electroexplosive cartridge with heat sink button
US3695178A (en) * 1970-11-09 1972-10-03 Robert E Betts Delta squib circuit
DE3717149A1 (en) * 1986-05-22 1987-11-26 Detonix Close Corp BLASTING IGNITION ELEMENT
DE3918408A1 (en) * 1989-06-06 1990-12-13 Messerschmitt Boelkow Blohm Electric bridge initiator fuse with inductive meander line - has conductive track broken for insertion of two fusible bridges between symmetrical halves of induction coil
WO1992008932A1 (en) * 1990-11-13 1992-05-29 Schultz Richard M Electronic control system for explosives

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119039A (en) * 1961-05-29 1978-10-10 The United States Of America As Represented By The Secretary Of The Army Fuze system
US4090449A (en) * 1970-01-19 1978-05-23 The United States Of America As Represented By The Secretary Of The Navy Method for synchronizing point detonating arming with controlled variable time detonating arming in military fuzes
US3638035A (en) * 1971-03-23 1972-01-25 Us Interior Primary and secondary shunt paths for dissipating an electrical charge
US3769911A (en) * 1971-12-14 1973-11-06 Atomic Energy Commission Contact fuse
US3759183A (en) * 1971-12-17 1973-09-18 Us Army Multiple option electric detonator
US3863208A (en) * 1973-02-14 1975-01-28 Eaton Corp Vehicle safety system control circuit having a malfunction indicator
US3918408A (en) * 1974-07-12 1975-11-11 George W Keene Rubbing and liquid applying apparatus
US3967556A (en) * 1975-03-31 1976-07-06 The United States Of America As Represented By The Secretary Of The Army Pneumatic fuze for safing and arming missiles
US4002123A (en) * 1975-07-11 1977-01-11 The United States Of America As Represented By The Secretary Of The Army Dual channel redundant fuze
GB1520036A (en) * 1976-05-04 1978-08-02 Ml Aviation Co Ltd Ignition circuits
US4103619A (en) * 1976-11-08 1978-08-01 Nasa Electroexplosive device
US4135452A (en) * 1978-01-09 1979-01-23 The United States Of America As Represented By The Secretary Of The Navy Time delay computer using fuze doppler for air-to-air missiles
US4192554A (en) * 1978-07-31 1980-03-11 Occidental Oil Shale, Inc. Method for explosive expansion toward horizontal free faces for forming an in situ oil shale retort
US4227461A (en) * 1978-09-08 1980-10-14 The United States Of America As Represented By The Secretary Of The Navy Dual output simultaneous firing circuit
US4246845A (en) * 1978-12-22 1981-01-27 The United States Of America As Represented By The Secretary Of The Navy AC Initiation system
US5022326A (en) * 1982-05-20 1991-06-11 The United States Of America As Represented By The Secretary Of The Navy Asynchronous explosive logic safing device
US4625205A (en) * 1983-12-08 1986-11-25 Lear Siegler, Inc. Remote control system transmitting a control pulse sequence through interlocked electromechanical relays
US4699341A (en) * 1987-01-05 1987-10-13 Ponticelli Robert J System for mounting radio equipment in vehicles
US4777881A (en) * 1987-06-23 1988-10-18 Honeywell Inc. Temperature compensating electro-mechanical ballistic control tube system
US4953464A (en) * 1987-07-13 1990-09-04 Atlas Powder Company Multi-directional signal transmission in a blast initiation system
US4821645A (en) * 1987-07-13 1989-04-18 Atlas Powder Company Multi-directional signal transmission in a blast initiation system
US4882993A (en) * 1988-08-05 1989-11-28 The United States Of America As Represented By The Secretary Of The Army Electronic back-up safety mechanism for hand-emplaced land mines
US4911382A (en) * 1989-01-17 1990-03-27 Grumman Aerospace Corporation Safe electro ballistic escape sequencing system
US5007661A (en) * 1989-05-16 1991-04-16 Trw Vehicle Safety Systems Inc. Safety apparatus
US4969525A (en) * 1989-09-01 1990-11-13 Halliburton Company Firing head for a perforating gun assembly
US5099763A (en) * 1990-05-16 1992-03-31 Eti Explosive Technologies International Method of blasting
US5181737A (en) * 1990-07-05 1993-01-26 Trw Vehicle Safety Systems Inc. Safety apparatus for vehicle occupant
US5392860A (en) * 1993-03-15 1995-02-28 Baker Hughes Incorporated Heat activated safety fuse
FR2773394B1 (en) * 1998-01-07 2000-02-11 Cardem Demolition Sa OPTOPYROTECHNICAL DEMOLITION SYSTEM
DE19819428C1 (en) * 1998-04-30 1999-11-18 Daimler Chrysler Ag Ignition element
US6105688A (en) * 1998-07-22 2000-08-22 Schlumberger Technology Corporation Safety method and apparatus for a perforating gun
US6718881B2 (en) * 2001-09-07 2004-04-13 Alliant Techsystems Inc. Ordnance control and initiation system and related method
US6672215B2 (en) * 2001-10-17 2004-01-06 Textron Systems Corporation Constant output high-precision microcapillary pyrotechnic initiator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998776A (en) * 1958-06-20 1961-09-05 Paul B Morgan Reliable battery power supply
US3227083A (en) * 1964-01-30 1966-01-04 Holex Inc Electroexplosive cartridge with heat sink button
US3695178A (en) * 1970-11-09 1972-10-03 Robert E Betts Delta squib circuit
DE3717149A1 (en) * 1986-05-22 1987-11-26 Detonix Close Corp BLASTING IGNITION ELEMENT
DE3918408A1 (en) * 1989-06-06 1990-12-13 Messerschmitt Boelkow Blohm Electric bridge initiator fuse with inductive meander line - has conductive track broken for insertion of two fusible bridges between symmetrical halves of induction coil
WO1992008932A1 (en) * 1990-11-13 1992-05-29 Schultz Richard M Electronic control system for explosives

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2062007A1 (en) * 2006-09-19 2009-05-27 Mas Zengrange (NZ) Ltd Remote initiator for the remote initiation of explosive charges
EP2062007A4 (en) * 2006-09-19 2011-11-30 Mas Zengrange Nz Ltd Remote initiator for the remote initiation of explosive charges
CN107478112A (en) * 2017-09-21 2017-12-15 中国工程物理研究院电子工程研究所 A kind of highly reliable in-line arrangement fuse and its control method
CN107478112B (en) * 2017-09-21 2023-07-04 中国工程物理研究院电子工程研究所 High-reliability in-line fuse and control method thereof

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US20030192447A1 (en) 2003-10-16
DE60113103T2 (en) 2006-05-18
MXPA02011833A (en) 2003-04-10
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EP1287307A1 (en) 2003-03-05
ES2248335T3 (en) 2006-03-16
PE20020086A1 (en) 2002-02-13
DE60113103D1 (en) 2005-10-06
AU775546B2 (en) 2004-08-05
EP1287307B1 (en) 2005-08-31
CA2410874A1 (en) 2001-12-06
US7100511B2 (en) 2006-09-05
AU6352901A (en) 2001-12-11
BR0111134A (en) 2003-04-08

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