WO2003044451A1 - Installation for programmable pyrotechnic shot firing - Google Patents

Installation for programmable pyrotechnic shot firing Download PDF

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Publication number
WO2003044451A1
WO2003044451A1 PCT/FR2002/003891 FR0203891W WO03044451A1 WO 2003044451 A1 WO2003044451 A1 WO 2003044451A1 FR 0203891 W FR0203891 W FR 0203891W WO 03044451 A1 WO03044451 A1 WO 03044451A1
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WO
WIPO (PCT)
Prior art keywords
programming
line
firing
voltage
wire line
Prior art date
Application number
PCT/FR2002/003891
Other languages
French (fr)
Inventor
Thierry Bernard
Original Assignee
Chemical Holdings International Ltd.
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.)
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Publication date
Application filed by Chemical Holdings International Ltd. filed Critical Chemical Holdings International Ltd.
Priority to EP02793234A priority Critical patent/EP1456598B1/en
Priority to CA002467808A priority patent/CA2467808C/en
Priority to AU2002358894A priority patent/AU2002358894B2/en
Priority to DE60225055T priority patent/DE60225055D1/en
Priority to US10/495,848 priority patent/US20050016407A1/en
Publication of WO2003044451A1 publication Critical patent/WO2003044451A1/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

Definitions

  • a shooting campaign consists of carrying out a plurality of holes in the rock, which are filled with explosives, with each detonator allowing a firing. Some of these detonators are electronically controlled, which makes it possible to program the execution of the explosions according to a predetermined firing plan.
  • the execution of a firing plan therefore consists, after having placed all the detonators in the holes drilled and having connected them to a control unit, to identify each detonator by a serial number and to apply a delay time to it 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 wires.
  • an electronic detonator comprises a pyrotechnic primer, an energy reserve, an electronic pilot and two electrical conductors which connect the electronic pilot to a firing line which circulates on the ground from a central programming and control unit.
  • the electronic pilot includes an on-board 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 sent in the line of fire by the central unit and to respond to these requests either towards the central unit or towards the energy reserve which it will release with a determined delay time when the firing order is received from the central unit.
  • the programming of the on-board microprocessor in the electronic detonator pilot can be done a priori before it is set up in the shooting range or, as is the case for the invention, a posteriori after being set up.
  • the firing line on the ground also serves to provide the electrical energy necessary to fill the energy reserve and this just before firing in order to meet the security conditions requiring that the detonators be inactivable until the last moment.
  • a line of fire can have a length of the order of a 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 has full control over the energy required to supply these signals so that they reach their target.
  • a detonator has very little on-board energy and if one wishes that it can respond to the central unit, one notes that the limited power of the signals which it emits undergoes a strong attenuation which makes them almost inaudible by the central unit if the detonator-transmitter is distant from it on the firing line.
  • the present invention is a solution to this problem of bidirectional communication between a central unit and each of the detonators of a firing line, a simple and economical solution.
  • the subject of the invention is an installation of programmable pyrotechnic shots comprising a programming and control unit for shots, a programming and control line comprising two conducting wires and a plurality of electronic detonators mounted in parallel on this line.
  • the programming unit includes means for establishing a direct voltage between the two wires, means for generating pulses of this voltage to form coded signals, and means for reading variations in current existing on the two-wire line while each detonator comprises an electronic module capable of generating, in response to some of the signals coded from the programming unit, corresponding to requests from the latter, pulses of current in the two-wire line to form coded signals.
  • a detonator when a detonator, whatever its position on the firing line, has to respond to a request from the central processing unit, it will generate overcurrent peaks in the wired firing line, for example by 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 on-board microprocessor, these overcurrent peaks being immediately detectable by the central unit which, by means of 'a resistance, will convert them into a modulated voltage able to be interpreted by its microprocessor, this constituting the response of the detonator concerned to the request of this central unit.
  • FIG. 1 is a diagram illustrating an installation of pyrotechnic fire
  • FIG. 2 schematically illustrates a central unit for programming and controlling the installation
  • FIG. 3 is a functional diagram of the part of the electronic pilot of each detonator concerned by the dialogue with the central programming unit. mation and control.
  • holes 1 were drilled in a rock 2, for example from the ground 3.
  • detonators 4 and explosive charges 5 were put in place, each detonator 4 being connected to a ground firing line 6 by conductors 7.
  • a central programming and control unit is shown at 8, connected to the firing line 6.
  • This unit 8 comprises a microprocessor 9 which acts on a device 10 for supplying DC supply voltage between the two wires 6a, 6b of line 6 and which makes it possible to insert into this DC voltage sequences of drop in voltage 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 the current flowing on the line 6a, 6b into voltage in order to make variations of this current understandable by the microprocessor 9.
  • the electronic pilot 12 of the detonator shown schematically and partially in FIG. 3, comprises a voltage regulator 13, the input of which is connected to line 6a, and the output to an on-board microprocessor 14, in order to constitute a supply for this microprocessor 14 increased by a capacity 15 making it possible to smooth the drops in voltage in the line 6.
  • This pilot 12 also includes 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 to the microprocessor 14. Between the lines 6a and 6b, the electronic pilot 12 has a current draw circuit 17 for example a transistor and a resistor, controlled by the microprocessor 14. Finally, the microprocessor 14 controls a switch 18 of the li- gene 6a, in a manner which will be explained below.
  • Each of the detonators 1 is connected to the two-wire line 6a, 6b in parallel with the latter at point A, B (FIG. 3).
  • this electronic pilot 12 come out four wires 19, 20, 21, 22 which form the conductors 7 of FIG. 1.
  • the wires 19 and 20 make it possible to connect the pilot to the wires 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 pilot by the line 21 becoming 6a at the level of the ground surface.
  • the line 6b has a section 24 internal to the pilot which by the conductor 22 comes out of the borehole to constitute the wire 6b of the firing line at ground level.
  • the switch 18 When the detonators are placed in the boreholes, the switch 18 is open. The electronic pilots are connected one after the other. It is understood by this arrangement that the first detonator connected to the unit 8 is mounted in series on the line 6a, 6b as long as the switch 18 is open. When the switch 18 is closed, this detonator is mounted in parallel with the next on line 6a, 6b.
  • the central unit 8 establishes a voltage, for example 24 or 48 volts at the terminals of 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 capacity 15.
  • the microprocessor 9 of the central unit 8 transmits to the pilot 12 a serial number recorded by the microprocessor 14, and a certain delay time.
  • the operating sequence of the microprocessor 9 can 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 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 on-board microprocessor 14 will be to close the switch 18.
  • the pilot of the next detonator is in the same state with respect to of the central processing unit 8 that the previous pilot and the programming sequence can start again.
  • the microprocessor 9 can include in its program other steps and other requests concerning the detonators. It will then transmit a general order to all the detonators to charge the energy reserve, not shown in the figures, followed if necessary by a verification of the state of this reserve and finally transmit to all the detonators a top firing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Storage Device Security (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Supports For Pipes And Cables (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 two 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 occurring on the two-wire line while each detonator comprises an electronic module (12) including means (14, 17) for generating, in response to certain coded signals of the programming unit (8), current pulses in the two-wire line (6a, 6b) to form coded signals.

Description

Installation de tirs pyrotechniques programmables . Installation of programmable pyrotechnic fire.
Dans le domaine des mines et des carrières, l'abattage des roches est réalisé par explosifs.In the field of mines and quarries, rock mining is carried out using explosives.
Une campagne de tirs consiste à réaliser une pluralité de forages dans la roche, que l'on remplit d'explosifs avec pour chaque forage un détonateur permettant la mise à feu. Certains de ces détonateurs sont à commande électronique, ce qui permet de programmer l'exécution des explosions selon un plan de tirs prédéterminé.A shooting campaign consists of carrying out a plurality of holes in the rock, which are filled with explosives, with each detonator allowing a firing. Some of these detonators are electronically controlled, which makes it possible to program the execution of the explosions according to a predetermined firing plan.
L'exécution d'un plan de tirs consiste donc, après avoir disposé tous les détonateurs dans les forages réalisés et les avoir reliés à une unité de commande, à identifier chaque détonateur par un numéro d'ordre et à lui appliquer un temps de retard qui va déterminer le moment de l'allumage de la charge par rapport à un top de mise à feu général .The execution of a firing plan therefore consists, after having placed all the detonators in the holes drilled and having connected them to a control unit, to identify each detonator by a serial number and to apply a delay time to it which will determine the moment of ignition of the load compared to a general firing top.
La présente invention concerne une telle installation de tirs pyrotechniques programmables dans laquelle tous les détonateurs sont reliés à l'unité de commande par des fils .The present invention relates to such an installation of programmable pyrotechnic shots in which all the detonators are connected to the control unit by wires.
Classiquement un détonateur électronique comprend une amorce pyrotechnique, une réserve d'énergie, un pilote électronique et deux conducteurs électriques qui relient le pilote électronique à une ligne de tir qui circule au sol depuis une unité centrale de programmation et de commande. Le pilote électronique comprend un microprocesseur embarqué grâce auquel une communication peut intervenir entre le détonateur et l'unité centrale. Le microprocesseur est programmé ou programmable pour être capable de recevoir des requêtes émises dans la ligne de tir par l'unité centrale et de répondre à ces requêtes soit en direction de l'unité centrale soit en direction de la réserve d'énergie qu'il libérera avec un temps de retard déterminé lorsque 1 ' ordre de mise à feu sera reçu de l'unité centrale. La programmation du microprocesseur embarqué dans le pilote électronique du détonateur peut se faire a priori avant sa mise en place dans le champ de tir ou, comme c'est le cas pour l'invention, a posteriori après avoir été mis en place. La ligne de tir au sol sert également à apporter l'énergie électrique nécessaire pour remplir la réserve d'énergie et ce juste avant le tir afin de satisfaire aux conditions de sécurité demandant que les détonateurs soient inactivables jusqu'au dernier moment .Conventionally, an electronic detonator comprises a pyrotechnic primer, an energy reserve, an electronic pilot and two electrical conductors which connect the electronic pilot to a firing line which circulates on the ground from a central programming and control unit. The electronic pilot includes an on-board 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 sent in the line of fire by the central unit and to respond to these requests either towards the central unit or towards the energy reserve which it will release with a determined delay time when the firing order is received from the central unit. The programming of the on-board microprocessor in the electronic detonator pilot can be done a priori before it is set up in the shooting range or, as is the case for the invention, a posteriori after being set up. The firing line on the ground also serves to provide the electrical energy necessary to fill the energy reserve and this just before firing in order to meet the security conditions requiring that the detonators be inactivable until the last moment.
On rappellera qu'une ligne de tir peut posséder une longueur de l'ordre du kilomètre. Pour cette raison, dans les installations actuelles, il est relativement simple de transmettre à partir de l'unité de commande des signaux à l'adresse de chaque détonateur aussi éloigné qu'il puisse être de l'unité de commande, car à partir de l'unité de commande on maîtrise totalement l'énergie nécessaire à fournir à ces signaux pour qu'ils atteignent leur cible. En revanche, un détonateur possède très peu d'énergie embarquée et si l'on souhaite qu'il puisse répondre à l'unité centrale, on constate que la puissance limitée des signaux qu'il émet subit une forte atténuation qui les rend quasiment inaudible par l'unité centrale si le détonateur-émetteur est éloigné de celle-ci sur la ligne de tir.It will be recalled that a line of fire can have a length of the order of a 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 has full control over the energy required to supply these signals so that they reach their target. On the other hand, a detonator has very little on-board energy and if one wishes that it can respond to the central unit, one notes that the limited power of the signals which it emits undergoes a strong attenuation which makes them almost inaudible by the central unit if the detonator-transmitter is distant from it on the firing line.
La présente invention est une solution à ce problème de communication bidirectionnelle entre une unité centrale et chacun des détonateurs d'une ligne de tir, solution simple et économique.The present invention is a solution to this problem of bidirectional communication between a central unit and each of the detonators of a firing line, a simple and economical solution.
A cet effet, l'invention a pour objet une installation de tirs pyrotechniques programmables comportant une unité de programmation et de commande des tirs, une ligne de programmation et de commande comportant deux fils conducteurs et une pluralité de détonateurs électroniques montés en parallèle sur cette ligne bifilaire, dans laquelle l'unité de programmation comporte des moyens d'établissement d'une tension continue entre les deux fils, des moyens pour engendrer des impulsions de cette tension pour former des signaux codés, et des moyens de lecture des variations de courant existant sur la ligne bifilaire tandis que chaque détonateur comporte un module électronique apte à engendrer, en réponse à certains des signaux codés de l'unité de programmation, correspondant à des requêtes de celle-ci, des impulsions de courant dans la ligne bifilaire pour former des signaux codés .To this end, the subject of the invention is an installation of programmable pyrotechnic shots comprising a programming and control unit for shots, a programming and control line comprising two conducting wires and a plurality of electronic detonators mounted in parallel on this line. two-wire, in which the programming unit includes means for establishing a direct voltage between the two wires, means for generating pulses of this voltage to form coded signals, and means for reading variations in current existing on the two-wire line while each detonator comprises an electronic module capable of generating, in response to some of the signals coded from the programming unit, corresponding to requests from the latter, pulses of current in the two-wire line to form coded signals.
En d'autres termes, lorsqu'un détonateur, quelle que soit sa position sur la ligne de tir, a à répondre à une requête de l'unité centrale, il engendrera dans la ligne de tir filaire des pics de surintensité, par exemple en fermant la ligne sur une résistance calibrée dans un temps donné et ce, en fonction d'un programme d'impulsions correspondant à un code généré par le microprocesseur embarqué, ces pics de surintensité étant immédiatement détectables par l'unité centrale qui, au moyen d'une résistance, les convertira en une tension modulée apte à être interprétée par son microprocesseur, ceci constituant la réponse du détonateur concerné à la requête de cette unité centrale.In other words, when a detonator, whatever its position on the firing line, has to respond to a request from the central processing unit, it will generate overcurrent peaks in the wired firing line, for example by 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 on-board microprocessor, these overcurrent peaks being immediately detectable by the central unit which, by means of 'a resistance, will convert them into a modulated voltage able to be interpreted by its microprocessor, this constituting the response of the detonator concerned to the request of this central unit.
D'autres caractéristiques et avantages de l'invention ressortiront de la description donnée ci-après à titre non limitatif, d'un exemple de sa réalisation.Other characteristics and advantages of the invention will emerge from the description given below, without implied limitation, of an example of its embodiment.
Il sera fait référence aux dessins annexés parmi lesquels :Reference will be made to the accompanying drawings, in which:
- la figure 1 est un schéma illustrant une installation de tirs pyrotechniques,FIG. 1 is a diagram illustrating an installation of pyrotechnic fire,
- la figure 2 illustre de manière schématique une unité centrale de programmation et de commande de l'installation,FIG. 2 schematically illustrates a central unit for programming and controlling the installation,
- la figure 3 est un schéma fonctionnel de la partie du pilote électronique de chaque détonateur concernée par le dialogue avec l'unité centrale de program- mation et de commande.FIG. 3 is a functional diagram of the part of the electronic pilot of each detonator concerned by the dialogue with the central programming unit. mation and control.
Pour réaliser une campagne de tirs, on a foré des trous 1 dans une roche 2 à partir par exemple du sol 3. Dans chacun de ces forages 1 on a mis en place des détonateurs 4 et des charges explosives 5, chaque détonateur 4 étant relié à une ligne de tir au sol 6 par des conducteurs 7. Une unité centrale de programmation et de commande est représentée en 8, connectée à la ligne de tirs 6.To carry out a fire campaign, holes 1 were drilled in a rock 2, for example from the ground 3. In each of these boreholes 1 detonators 4 and explosive charges 5 were put in place, each detonator 4 being connected to a ground firing line 6 by conductors 7. A central programming and control unit is shown at 8, connected to the firing line 6.
Cette unité 8, voir figure 2, comporte un microprocesseur 9 qui agit sur un dispositif 10 de fourniture de tension d'alimentation continue entre les deux fils 6a, 6b de la ligne 6 et qui permet d'insérer dans cette tension continue des séquences de baisse de tension afin de former des créneaux correspondant à n'importe type de codage binaire d'un signal. En outre, l'unité centrale 8 est pourvue d'un dispositif 11 de conversion en tension du courant circulant sur la ligne 6a, 6b afin de rendre des variations de ce courant compréhensibles par le microprocesseur 9.This unit 8, see FIG. 2, comprises a microprocessor 9 which acts on a device 10 for supplying DC supply voltage between the two wires 6a, 6b of line 6 and which makes it possible to insert into this DC voltage sequences of drop in voltage to form slots corresponding to any type of binary coding of a signal. In addition, the central unit 8 is provided with a device 11 for converting the current flowing on the line 6a, 6b into voltage in order to make variations of this current understandable by the microprocessor 9.
Le pilote électronique 12 du détonateur représenté schématiquement et partiellement à la figure 3, comporte un régulateur de tension 13 dont l'entrée est connectée à la ligne 6a, et la sortie à un microprocesseur embarqué 14, ce afin de constituer une alimentation de ce microprocesseur 14 augmenté d'une capacité 15 permettant de lisser les chutes de la tension dans la ligne 6. Ce pilote 12 comporte également un circuit 16 de détection des codes véhiculés par la ligne 6, dont l'entrée est également connectée à la ligne 6a et dont la sortie est dirigée vers le microprocesseur 14. Entre les lignes 6a et 6b, le pilote électronique 12 possède un circuit de tirage de courant 17 par exemple un transistor et une résistance, commandé par le microprocesseur 14. Enfin, le microprocesseur 14 commande un interrupteur 18 de la li- gne 6a, d'une manière qui sera expliquée ci-après.The electronic pilot 12 of the detonator shown schematically and partially in FIG. 3, comprises a voltage regulator 13, the input of which is connected to line 6a, and the output to an on-board microprocessor 14, in order to constitute a supply for this microprocessor 14 increased by a capacity 15 making it possible to smooth the drops in voltage in the line 6. This pilot 12 also includes 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 to the microprocessor 14. Between the lines 6a and 6b, the electronic pilot 12 has a current draw circuit 17 for example a transistor and a resistor, controlled by the microprocessor 14. Finally, the microprocessor 14 controls a switch 18 of the li- gene 6a, in a manner which will be explained below.
Chacun des détonateurs 1 est connecté à la ligne bifilaire 6a, 6b en parallèle de celle-ci au point A, B (figure 3) . En réalité, de ce pilote électronique 12 sortent quatre fils 19, 20, 21, 22 qui forment les conducteurs 7 de la figure 1. Les fils 19 et 20 permettent de relier le pilote aux fils 6a et 6b de la ligne de tir. La ligne 6a possède un tronçon 23 interne au pilote 12 qui comporte 1 ' interrupteur 18 et qui ressort du pilote par la ligne 21 devenant 6a au niveau de la surface du sol. De la même manière la ligne 6b possède un tronçon 24 interne au pilote qui par le conducteur 22 ressort du forage pour constituer le fil 6b de la ligne de tir au niveau du sol. Au moment de la mise en place des détonateurs dans les forages, l'interrupteur 18 est ouvert. Les pilotes électroniques sont raccordés les uns à la suite des autres. On comprend par ce montage que le premier détonateur raccordé à l'unité 8 est monté en série sur la ligne 6a, 6b tant que l'interrupteur 18 est ouvert. Lorsque l'interrupteur 18 est fermé, ce détonateur est monté en parallèle avec le suivant sur la ligne 6a, 6b.Each of the detonators 1 is connected to the two-wire line 6a, 6b in parallel with the latter at point A, B (FIG. 3). In reality, from this electronic pilot 12 come out four wires 19, 20, 21, 22 which form the conductors 7 of FIG. 1. The wires 19 and 20 make it possible to connect the pilot to the wires 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 pilot by the line 21 becoming 6a at the level of the ground surface. In the same way the line 6b has a section 24 internal to the pilot which by the conductor 22 comes out of the borehole to constitute the wire 6b of the firing line at ground level. When the detonators are placed in the boreholes, the switch 18 is open. The electronic pilots are connected one after the other. It is understood by this arrangement that the first detonator connected to the unit 8 is mounted in series on the line 6a, 6b as long as the switch 18 is open. When the switch 18 is closed, this detonator is mounted in parallel with the next on line 6a, 6b.
La ligne de tir étant réalisée, l'unité centrale 8 établit une tension par exemple 24 ou 48 volts aux bornes des conducteurs 6a, 6b. Cette tension, régulée par le dispositif 13, constitue l'alimentation du processeur 14 ainsi que la charge de la capacité 15. Par hachage de cette tension au moyen du dispositif 10, le microprocesseur 9 de l'unité centrale 8 transmet au pilote 12 un numéro d'ordre enregistré par le microprocesseur 14, et un certain temps de retard. La séquence de fonctionnement du microprocesseur 9 peut ensuite comprendre une requête (un signal binaire sur la tension de la ligne 6) à laquelle le microprocesseur 14 répondra en agissant sur le circuit de tirage de courant 17 pour créer des pics de surintensité qui, convertis par le dispositif 11 seront assimilés comme une réponse à sa requête par le microprocesseur 9. Le dernier ordre transmis par le microprocesseur 9 au microprocesseur embarqué 14 sera de fermer 1 ' interrupteur 18. A cet instant, le pilote du détonateur suivant se trouve dans le même état à l'égard de l'unité centrale 8 que le pilote précédent et la séquence de programmation peut recommencer.The firing line being produced, the central unit 8 establishes a voltage, for example 24 or 48 volts at the terminals of 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 capacity 15. By chopping this voltage by means of the device 10, the microprocessor 9 of the central unit 8 transmits to the pilot 12 a serial number recorded by the microprocessor 14, and a certain delay time. The operating sequence of the microprocessor 9 can 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 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 on-board microprocessor 14 will be to close the switch 18. At this instant, the pilot of the next detonator is in the same state with respect to of the central processing unit 8 that the previous pilot and the programming sequence can start again.
Lorsque tous les détonateurs sont ainsi programmés, l'installation de tir est prête à fonctionner. Le microprocesseur 9 peut comprendre dans son programme d'autres étapes et d'autres requêtes concernant les détonateurs . Il transmettra ensuite un ordre général à tous les détonateurs pour procéder à la charge de la réserve d'énergie, non représentée aux figures, suivi le cas échéant d'une vérification de l'état de cette réserve et transmettra enfin à tous les détonateurs un top de mise à feu. When all the detonators have been programmed in this way, the firing installation is ready to operate. The microprocessor 9 can include in its program other steps and other requests concerning the detonators. It will then transmit a general order to all the detonators to charge the energy reserve, not shown in the figures, followed if necessary by a verification of the state of this reserve and finally transmit to all the detonators a top firing.

Claims

REVENDICATIONS
1. Installation de tirs pyrotechniques programmables comportant une unité (8) de programmation et de commande des tirs, une ligne de programmation et de commande comportant deux fils (6a, 6b) conducteurs et une pluralité de détonateurs électroniques (12) montés en parallèle sur cette ligne bifilaire, caractérisée en ce que l'unité de programmation (8) comporte des moyens (9, 10) d'établissement d'une tension continue entre les deux fils1. Installation of programmable pyrotechnic shots comprising a firing programming and control unit (8), a programming and control line comprising two conductive wires (6a, 6b) and a plurality of electronic detonators (12) mounted in parallel on this two-wire line, characterized in that the programming unit (8) comprises means (9, 10) for establishing a DC voltage between the two wires
(6a, 6b) , des moyens (9, 10) pour engendrer des impulsions de cette tension afin de former des signaux codés, et des moyens (11, 9) de lecture des variations de courant existant sur la ligne bifilaire et en ce que chaque détonateur comporte un module électronique (12) possédant des moyens (14, 17) aptes à engendrer, en réponse à certains des signaux codés de l'unité (8) de programmation, des impulsions de courant dans la ligne bifilaire (6a, 6b) pour former des signaux codés.(6a, 6b), means (9, 10) for generating pulses of this voltage in order to form coded signals, and means (11, 9) for reading the variations in current existing on the two-wire line and in that each detonator comprises an electronic module (12) having means (14, 17) capable of generating, in response to some of the coded signals from the programming unit (8), current pulses in the two-wire line (6a, 6b ) to form coded signals.
2. Installation de tir selon la revendication l, caractérisée en ce que chaque module électronique (12) de détonateur comporte un interrupteur (18) de la ligne bifilaire (6a, 6b) , normalement ouvert et fermé en réponse à un signal émis par l'unité de programmation (8) . 2. Firing installation according to claim l, characterized in that each electronic module (12) of detonator comprises a switch (18) of the two-wire line (6a, 6b), normally open and closed in response to a signal emitted by the programming unit (8).
PCT/FR2002/003891 2001-11-19 2002-11-14 Installation for programmable pyrotechnic shot firing WO2003044451A1 (en)

Priority Applications (5)

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EP02793234A EP1456598B1 (en) 2001-11-19 2002-11-14 Installation for programmable pyrotechnic shot firing
CA002467808A CA2467808C (en) 2001-11-19 2002-11-14 Installation for programmable pyrotechnic shot firing
AU2002358894A AU2002358894B2 (en) 2001-11-19 2002-11-14 Installation for programmable pyrotechnic shot firing
DE60225055T DE60225055D1 (en) 2001-11-19 2002-11-14 PLANT FOR PROGRAMMABLE PYROTECHNICAL PIPES
US10/495,848 US20050016407A1 (en) 2001-11-19 2002-11-14 Installation for programmable pyrotechnic shot firing

Applications Claiming Priority (2)

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FR01/14916 2001-11-19
FR0114916A FR2832501B1 (en) 2001-11-19 2001-11-19 INSTALLATION OF PROGRAMMABLE PYROTECHNICAL SHOTS

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CA2467808A1 (en) 2003-05-30
ZA200403856B (en) 2006-06-28
DE60225055D1 (en) 2008-03-27
FR2832501A1 (en) 2003-05-23
CA2467808C (en) 2009-12-22
EP1456598B1 (en) 2008-02-13
US20050016407A1 (en) 2005-01-27
EP1456598A1 (en) 2004-09-15
AU2002358894A1 (en) 2003-06-10
FR2832501B1 (en) 2004-06-18
AU2002358894B2 (en) 2009-09-03
ATE386250T1 (en) 2008-03-15

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