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  • 专利说明
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    • 专利摘要:
    WIRELESS DETONATORS WITH STATE DETECTION AND THEIR USE. Wireless detonator systems present opportunities for a controlled rock explosion without the inconvenience of physical wire connections at the blast site. This document discloses wireless detonator sets that detect the state of the environmental condition (s) in your immediate vicinity and that are active to receive and / or process a TRIG command signal only if the ) environmental condition (s) are considered adequate and appropriate according to predetermined parameters. In addition, improved explosion methods involving such wireless detonator sets are disclosed, as well as corresponding wireless electronic initiators.
    公开号:BR112013027605B1
    申请号:R112013027605-3
    申请日:2012-04-27
    公开日:2020-11-17
    发明作者:Charles Michael Lownds；Walter Hardy Piel
    申请人:Orica International Pte Ltd；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [001] The invention relates to the field of detonators and associated components, and to explosion methods that employ such devices. More specifically, the invention relates to detonator assemblies that are substantially free of physical connections to an associated blast machine and to improve the safety of such wireless detonator assemblies. BACKGROUND OF THE INVENTION
    [002] In mining operations, fragmentation and breaking of rock efficiently by means of explosive charges requires considerable skill and expertise. In most mining operations, explosive charges are planted in adequate quantities at predetermined positions within the rock. It then acts on explosive charges by means of detonators that are delayed for a predetermined time, thus providing a desired pattern of rock explosion and fragmentation. Traditionally, signals are transmitted to the detonators of an associated explosion machine by means of non-electrical systems that employ low-energy detonation cable (LEDC) or shock tube. Electric detonators have also been used with some success. Electric detonators are typically attached to a mains wire, and act when they receive a simple electrical signal. Alternatively, electrical wires can be used to transmit more sophisticated signals to and receive electronic detonators. Such signaling may include instructions for ARMING, DISARMING, for example, and instructions on delay time for remote detonator detonation sequence programming. In addition, as a safety feature, detonators can store detonation codes and react to ARM and TRIG signals only when they have received the corresponding detonation codes from the blast machine. Electronic detonators can be programmed with time delay to an accuracy of 1 ms or less.
    [003] The establishment of a wired explosion arrangement involves the correct positioning of explosive charges within holes in the rock and the correct connection of wires between an associated explosion machine and detonators. The process is often laborious and depends heavily on the accuracy and perception of the explosion operator. The important thing is that the explosion operator ensures that the detonators are in an appropriate signal transmission relationship with an explosion machine, so that the explosion machine can at least transmit command signals to control each detonator. and in turn act on each explosive charge. Inadequate physical connections between the components of the explosion arrangement can lead to loss of communication between explosion machines and detonators with unavoidable safety problems. Significant care is required to ensure that wires pass between detonators and an associated explosion machine without interruption, obstacles, damage or other interference that could prevent proper control and operation of each detonator by means of a connected explosion machine.
    [004] Wireless detonator systems offer the potential to work around these problems thus improving safety and or operational efficiency at the explosion site. By avoiding the use of physical connections (electrical wires, shock tubes, LEDC or optical cables, for example) between detonators and other components at the explosion site (explosion machines, for example), the possibility of improper installation of the explosion arrangement. Wireless detonators and corresponding wireless detonator systems are also more amenable to application with automated mining operations, with robotic installation of detonators and associated explosives in the field, since wireless detonators are not overloaded with the complexities of " mooring "to network wires at the explosion site.
    [005] However, the development of wireless explosion systems presents formidable technical challenges with regard to security. In direct contrast, for example, to traditional electronic detonators that are "turned on" to receive command signals only when attached to a wire in a network at the site of the explosion, wireless detonators must each understand their power source independent internal (an "operational power source") sufficient to trigger means to receive, process and optionally transmit wireless signals at the explosion site. The mere presence of this source of operational energy itself presents an inherent risk of involuntary action for wireless detonators. An accidental or improper application of operational electrical energy to the detonation circuit during transport and storage, for example, could result in the detonator acting involuntarily. In addition, as wireless detonators continuously receive power, they are at risk of receiving or acting when they receive inappropriate or spurious command signals at the explosion site, even in locations prior to their disposal at the explosion site. Thus, there remains a great need in the art to improve the safety of explosion systems that employ electronic detonators, and especially wireless systems. SUMMARY OF THE INVENTION
    [006] An object of the present invention consists, at least in the preferred modalities, of proposing a wireless detonator set with greater security.
    [007] Another objective of the present invention, at least in the preferred modalities, is to propose a method for activating one or more electronic detonators in an explosion site.
    [008] Certain exemplary modalities propose a wireless detonator set for use in connection with an explosion machine that transmits at least one wireless command signal to the wireless detonator, the wireless detonator set comprising: - a detonator comprising a hull and a base load for performance; - command signal processing and receiving module to receive and process at least one wireless command signal from the blast machine; - at least one state sensor to detect at least one environmental condition in an immediate vicinity of the wireless detonator assembly; and - an activation / deactivation module to make the wireless detonator assembly capable of acting in response to a TRIG command signal when the at least one state sensor detects that the at least one environmental condition falls within predetermined parameters suitable for the explosion, otherwise maintaining the wireless detonator set in a safe mode unable to receive and / or respond to a command signal to SHOOT.
    [009] Other exemplary modalities propose methods to explode rock previously drilled with holes, the methods comprising the steps of: 1) assigning to each hole at least one wireless detonator set as described in this document; 2) optionally using a manual device or recorder to communicate with each set assigned to read and / or program data on each detonator; 3) connect each set to an explosive material to form an initiator; 4) push or lower each primer into the hole; 5) load explosives into each hole; 6) optionally, plug each hole; 7) transmit wireless command signals to control and TRIG each detonator; at any time, the method also includes: detecting at least one environmental condition in an immediate vicinity of each wireless detonator set, with each set, at any time, unable to act, if the detected environmental condition affects or will affect outside predetermined parameters for the explosion.
    [0010] Other exemplary modalities propose a wireless electronic initiator for use in connection with an explosion machine, controlling the explosion machine the wireless electronic initiator by means of at least one wireless command signal, comprising the wireless electronic initiator : - the wireless detonator set as described in this document, - an explosive charge in operative association with the detonator, in such a way that the actuation of the base charge produces the actuation of the explosive charge; - the command signal receiving and processing module in signal communication with the detonator, in such a way that, after receiving a command signal to TRIP by the command signal receiving and processing module, it acts on the base charge and consequently on the explosive charge, provided that at least one state sensor detects environmental conditions that fall within predetermined parameters suitable for the explosion. DEFINITIONS
    [0011] Activation / deactivation module: refers to any part of a wireless detonator set as described in this document, which is capable by any means of activating and / or deactivating the wireless detonator set at least in terms of its ability to receive and / or respond to a wireless command signal to SHOOT. An activation / deactivation module operates in conjunction with one or more wireless detonator assembly state sensors to activate the assembly (or to keep the assembly active) to trigger the detonator if favorable or appropriate environmental conditions are detected in the immediate vicinity of the assembly wireless detonator, and / or to disable the assembly (or to maintain the assembly in a "safe" idle mode) when unfavorable or inappropriate environmental conditions are detected in the immediate vicinity of the wireless detonator assembly. The activation / deactivation module can be an individual electronic device, an integrated circuit, or a set of electronic device (s) and / or integrated circuits.
    [0012] Automated / automatic explosion event: covers all explosion methods and systems that are possible to be established by remote means, using, for example, robotic systems, in the explosion site. In this way, explosion operators can install an explosion system including a set of detonators and explosive charges, at the explosion site from a remote location and control the robotic systems to install the explosion system without having to be in the vicinity of the explosion. explosion site.
    [0013] Base charge: refers to any discrete portion of explosive material in the vicinity of other components of the detonator and associated with those components in a way that allows the explosive material to act when appropriate signals are received from the other components. The base charge can be retained within the main shell of a detonator, or alternatively it can be located in the vicinity of the main shell of a detonator. The base charge can be used to supply output energy to a charge of external explosives to initiate the charge of external explosives, such as, for example, in a reinforcer or initiator.
    [0014] Explosion machine: refers to any device that is capable of communicating by signal with electronic detonators, to send ARM, DISARM and SHOOT signals, for example, to detonators, and / or to program detonators with delay times and / or trigger codes. The blast machine may also be able to receive information such as delay times, firing codes or data relating to the environmental conditions in the immediate vicinity of the detonators, directly from the detonators or this can be produced using an intermediate device such as a recorder to collect information about the detonator and transfer the information to the blast machine.
    [0015] "Reinforcer" and "Initiator": a reinforcer refers to any portion of the explosive material that, when associated with a detonator, forms such an initiator, which causes the explosive material to act or ignite after receiving the energy from the basic load performance. In turn, if an initiator is associated with another explosive material in the form of an explosive charge in a bore, for example, the actuation of the explosive material portion of the initiator can produce the actuation or ignition of the explosive charge for the fragmentation of the rock that surrounds the hole.
    [0016] Central command station: refers to any device that transmits signals by means of radio transmission or by direct connection to one or more explosion machines. The transmitted signals can be encoded or encrypted. Typically the central blast station allows radio communication with a multiplicity of blast machines from a remote location of the blast site.
    [0017] Charge / charging: refers to a process of supplying electrical energy from an energy source to a charge storage device, in order to increase and an amount of electrical charge stored by the charge storage device. As desired in the selected embodiments, the load on the load storage device can surpass a sufficiently high threshold such that the discharge of the load storage device by means of a trigger circuit causes a basic load to be associated with the trigger circuit.
    [0018] Load storage device: refers to any device capable of storing electrical charge. Such a device may include, for example, a capacitor, diode, rechargeable battery, or activable battery. At least in preferred embodiments, the potential difference in electrical energy used to charge the charge storage device is less than or significantly less than the potential difference in electrical energy after the charge storage device is discharged into a trip circuit. In this way, the charge storage device can act as a voltage multiplier, the device allowing the generation of a voltage that exceeds a predetermined threshold voltage to produce the actuation of a base load connected to the trigger circuit.
    [0019] Clock: covers any clock suitable for use in connection with a wireless detonator of the invention, for counting down, for example, an implantation window, an explosion time window, or a delay time. In especially preferred embodiments, the term clock refers to a crystal clock, comprising, for example, an oscillating quartz crystal of the type that is well known, in conventional quartz watches and timing devices. Crystal watches can provide an accurate measurement of time especially according to preferred aspects of the invention. For more sophisticated explosion applications, the wireless detonating device can even cover an atomic clock on the micro circuit scale (as described in the example at http://spectrum.ieee.org/semiconductors/devices/chipscale- attomic-clock /, incorporated reference to this document).
    [0020] Implantation window: refers to any period of time that can be programmed in a wireless electronic detonator as described in this document, within which the sensors are not operational, or at least the wireless detonator assembly does not respond to such state sensors. The implantation window can allow, for example, the wireless detonator set to be transported or implanted in an explosion site without the complications of environmental monitoring.
    [0021] Electromagnetic energy: covers the energy of all wavelengths that are found in the electromagnetic spectra. This includes wavelengths of the electromagnetic spectrum division of y-rays, X-rays, ultraviolet, visible, infrared, microwave and radio waves including UHF, VHF, short wave, medium wave, long wave, VLF and ULF. The preferred modalities employ wavelengths found in the radio, visible or microwave division of the electromagnetic spectrum.
    [0022] Environmental condition: refers to any measurable parameter, condition or state of the medium or materials in a general or immediate vicinity of a wireless detonator set as described in this document. Such parameters, conditions or states may include one or more of the following non-limiting list: visible light, other electromagnetic radiation, temperature, humidity, moisture content, density of the surrounding material, pressure, vibration, acceleration, movement etc., as detected by a or more status sensors from a wireless detonator assembly. To make a wireless detonator set "active" to receive and process a command signal to TRIP its associated detonator or component, the detected environmental condition (s) must satisfy predetermined parameters that are suitable or have previously been approved for the explosion. Such parameters, as measured by the state sensors, may require a reading of zero or near zero by the state sensors (a complete or almost complete absence of vibration, acceleration or motion, for example) or may be required to exceed or not exceed one predetermined threshold value (a suitable low level of light at a given time, for example, or as being received over a given time period). In other modalities, the detected environmental conditions must fall within approved or predetermined limits of parameters for the explosion (density conditions, for example, which indicate that the wireless detonator set is adequately surrounded by explosive material and / or filling material). Thus, such predetermined environmental conditions may be limited within rigid parameters or may consist of them, or belong to a range of parameters considered suitable for the explosion and taking into account, optionally, conditions of the explosion site. In addition, such environmental conditions can be detected on one occasion, on several occasions, or continuously over a specific period, before an assessment is made as to whether these conditions meet the requirements of specific parameters necessary for a specific explosion.
    [0023] Manual device or recording device: includes any device suitable for recording information related to a detonator at the explosion site. It is preferable that the recording device can also record additional information such as, for example, identification codes for each detonator, information regarding the environment of the detonator, the nature of the explosive charge in connection with the detonator, etc. In selected embodiments, a recording device may be an integral part of an explosion machine or alternatively it may belong to a separate device, such as, for example, a portable programmable unit comprising memory means for storing data relating to each detonator, such as data corresponding to environmental conditions, and preferably means for transferring this data to a central control station or to one or more explosion machines. A function of the recording device may be to read the detonator / set ID so that the detonator can be "found" by an associated blast machine, and has commands such as TRIG commands directed at it as appropriate.
    [0024] Immediate neighborhood: refers to an area or volume around a wireless detonator set, comprising rock, water, air and any other material that constitutes the environment around or surrounding the wireless detonator. The immediate vicinity may include, for example, all materials that are within 1 cm, 10 cm, 1 m, 5 m or 20 m or more from the outer surfaces of the wireless detonator assembly and its components, or may include, in other modalities, only the materials that come into contact with the external and internal surfaces of the wireless detonator set.
    [0025] Micronuclear energy source: refers to any source of energy suitable for supplying power to the operational circuits, communication circuits, or firing circuits of a detonator or wireless detonator assembly according to the present invention. The nature of the nuclear material in the device is variable and may include, for example, a tritium-based battery.
    [0026] Passive energy source: includes any electrical energy source that does not supply energy on a continuous basis, but instead provides energy when induced to do so by means of an external stimulus. Such power sources include, but are not limited to, a diode, a capacitor, a rechargeable battery, or an activable battery. It is preferable that a passive energy source is a source of energy that can be easily charged and discharged according to received energy or other signals. Most preferably, the passive energy source is a capacitor.
    [0027] Energy source: refers to any energy source that can provide a continuous, constant, intermittent or selective supply of electrical energy. This definition covers devices that direct current such as a battery or a device that provides direct or alternating current. Typically, a power source supplies power to means of receiving and / or processing command signals, to allow for receiving and interpreting command signals derived from an explosion machine.
    [0028] Preferably: identifies preferred features of the invention. Unless otherwise specified, the term of preference refers to preferred features of the broader embodiments of the present invention, as defined, for example, by the independent claims and other inventions described herein.
    [0029] State sensor: refers to any component or device that is capable of taking the measurement or conducting the analysis of an environmental condition or selected parameter, for example, among, but not limited to: visible light, other electromagnetic radiation, temperature , humidity, moisture content, pressure, density of the surrounding material, vibration of the surrounding material, acceleration of the sensor in response to movement, etc. A temperature sensor for temperature, for example, would include a thermometer, preferably with some means for obtaining temperature data, and for transferring this data to another component or device. An example of a vibration state sensor would include an accelerometer, a vibration sensor or a level. An example of a density sensor can include a device for the emission and / or reception of acoustic energy to assess a density of a medium surrounding or adjacent to the sensor (to assess whether the medium comprises rock, gravel, soil, water, air, for example, etc.).
    [0030] Top-box: refers to any device that is part of a wireless detonator set that is adapted to be located on the surface of the ground or on its surface when the wireless detonator set is being used in an explosion site in association with a hole and the explosive charge located there. Top-boxes are typically located above the ground or at least in a position inside, next to or around the hole that is most suitable for receiving and / or transmitting wireless signals, and for transmitting these signals to the detonator inside the hole. In preferred embodiments, each top-box comprises one or more components selected from the wireless detonator of the present invention.
    [0031] Transceiver: refers to any device that can receive or transmit wireless signals. Although the term "transceiver" traditionally encompasses a device that can both transmit and receive signals, a transceiver when used in accordance with the present invention includes a device that can function only as a wireless signal receiver and cannot transmit wireless signals or that transmits only limited wireless signals. In specific circumstances, for example, the transceiver may be located in a position where it is capable of receiving signals from a source, but is not capable of transmitting signals back to the source or to another location. In very specific modalities, where the transceiver is part of a reinforcer or initiator located underground, the transceiver may be able to receive signals through the rock from a wireless source located above a surface of the ground, but may be unable to transmit signals back through the rock to the surface. In these circumstances, the transceiver may optionally have the signal transmission function disabled or absent. In other modalities, the transceiver can transmit signals only to a recorder through a direct electrical connection or alternatively through short-range wireless signals.
    [0032] By wire: any physical connection between any components of a wireless detonator assembly as described in this document, or between any components or elements of an explosion device, can be through a wire connection selected from, but not limited to, electrical wires or fiber optic cables, etc.
    [0033] Wireless: refers to the fact that there are no physical wires, cables or lines (such as electrical wires, shock tubes, LEDC, or optical cables) connecting the wireless detonator assembly of the invention or its components to each other and / or an associated component of an explosion device, such as an explosion machine, or an energy source. Wireless signals may take any form that does not involve physical wires, cables or lines including, but not limited to, those comprising electromagnetic energy (including, but not limited to, radio signals or any frequency), acoustic energy or by means of a magnet -inductance including signals extracted from an oscillating magnetic field.
    [0034] Wireless booster: in general the term "wireless booster" or "wireless electronic booster" or "WEB" or "electronic booster" or "wireless initiator" includes a device that comprises an explosive charge upon which it acts through the action of an associated detonator. The reinforcer can be associated with a detonator or comprise a detonator, with an electronic detonator (typically comprising at least one detonator hull and a base charge) or a wireless detonator assembly as described in this document being most preferred, as well as means for producing the actuation of the base charge upon receipt by the initiator of a signal to SHOOT from at least one associated blast machine, thereby forming an initiator. Such means for producing the actuation may include, for example, a transceiver or signal receiving means, signal processing means, and a trigger circuit to be activated in the event of receiving a TRIGGER signal. Preferred components of the wireless booster (or initiator) may further include means for transmitting information relating to the wireless detonator assembly to other assemblies or an explosion machine, or means to transmit wireless signals to other components of the explosion apparatus . Such means for transmission or forwarding may be part of the function of the transceiver. Any wireless detonator assembly as described in this document can be part of an electronic wireless booster or a corresponding initiator as described in this document. Other examples of wireless electronic boosters are described in international patent publication WO2007 / 124539 published on November 8, 2007 and which is incorporated by reference in this document. Wireless command signals: they can comprise any form or forms of energy, and "forms" of energy can take any form suitable for wireless communication of detonators. Such forms of energy may include, for example, but are not limited to, electromagnetic energy including light, infrared, radio waves (including ULF) and microwaves, or alternatively they may also take another form such as electromagnetic induction or acoustic energy. In addition, "forms" of energy may belong to the same type of energy (light, infrared, radio waves, microwaves, for example, etc.), but involve different wavelengths or frequencies of the energy.
    [0035] Wireless detonator set: refers to a detonator (typically comprising at least one hull and a base charge) together with associated components for receiving and / or processing wireless signals and means for acting on the base charge or on the detonator after receiving a command signal to SHOOT. In accordance with the wireless detonator assemblies described in this document, assemblies may include other components suitable for detecting one or more environmental conditions in the immediate vicinity of the assembly and means for enabling and / or disabling the functionality of the assembly and thus the detonator's operability , depending on these environmental conditions. The non-detonator components can be located in physical or wired contact with the detonator, or they can be separated from the detonator with a wired or wireless communication link between those components and the detonator. The rest of the components can be closely associated with the detonator as a whole, or located in a separate housing, container or top-box, which can be connected to or remote from the detonator, but in the same general neighborhood (within 100 m, for example ) of the detonator. DESCRIPTION OF THE DRAWINGS
    [0036] Modes will now be described by way of example only, in which: - Figure 1: is a perspective view of a wireless detonator set according to a first modality; - Figure 2: it is a perspective view of a wireless electronic initiator according to a second modality; - Figure 3: is a cropped view of the wireless electronic initiator in Figure 2; - Figure 4: is a cross-sectional view in lateral elevation of the wireless electronic initiator in Figure 2; and - Figure 5: it is a flow chart illustrating a method of exploding a rock previously drilled with holes according to a third modality. DETAILED DESCRIPTION OF THE INVENTION
    [0037] Wireless explosion systems help to avoid the need for complex wiring systems at the explosion site, and risks associated with improper arrangement and connection of the explosion system components. However, the development of wireless communication systems for blast operations has posed significant new challenges for the industry, including new security issues.
    [0038] Figure 1 shows a wireless detonator set 10 according to a first modality. The wireless detonator set 10 has a housing 11 that contains several electronic components (not visible, but which will be discussed in more detail below). Extending from one end of the assembly is a detonator 12 having a signal line input end (not visible) and an actuation end 13 containing a base charge (also not visible). Also shown in Figure 1, the wireless detonator set 10 includes state sensors 15 integrated into the housing 11, so that they can detect at least one environmental condition outside the wireless detonator set, and transmit information regarding the detected environmental condition to processing by electronic components (not shown) located inside the housing.
    [0039] In this specific mode, the state sensors 15 are in the form of light detectors such as photocells. Consequently, the wireless detonator assembly 10 of Figure 1 is especially suitable for use in above ground mining applications. The fact that the state sensors 15 fail to detect light is representative of the assembly 10 being located inside an explosion hole. On the other hand, if one or more of the state sensors detects light, it is representative that the assembly 10 is arranged outside an explosion hole.
    [0040] Figures 2 to 4 show a wireless electronic initiator 20 that includes the wireless detonator set 10 of Figure 1, together with a reinforcement charge 21. The reinforcement charge 21 comprises a hull 22 to contain the explosive material 31 The firing of the base charge from detonator 12 causes the explosive material 31 from the reinforcement charge 21 to explode.
    [0041] As shown in Figures 3 and 4, the actuation end 13 of the detonator 12 is inserted in an elongated recess that extends into the explosive material inside the reinforcement charge 21 and is received in this recess. As shown especially in Figure 3, the detonator 12 includes a base charge 30, which is located inside the actuation end 13. When the assembly 10 and the reinforcement charge 21 are mounted to form the initiator 20, the detonator 12 is extends deep within the reinforcement charge 21, and specifically into the recess of the reinforcement charge 31. In this position the actuating end 13 of the detonator 12, and specifically the base charge 30, is centrally arranged in the reinforcement charge 21 and enveloped by explosive material 31 which forms the main explosive charge of the initiator 20.
    [0042] Figures 3 and 4 show, in schematic form, an electronic circuit 32 of the wireless detonator set 10, which includes a command signal receiving and processing module 40, a power source (which in this modality is found in battery form 41), and activation / deactivation module 42. Battery 41 supplies power to other components / modules of electronic circuit 32. Electronic circuit 32 also includes state sensors 15.
    [0043] In this modality, the command signal receiving and processing module 40 facilitates communication between the detonator set 10 and an explosion machine. For this purpose, the command signal processing and receiving module 40 can receive and process command signals by means of RF signal communication, for example.
    [0044] The activation / deactivation module 42 operates with state sensors 15 to determine whether the set 10 must be in an active or safety mode. In this specific mode, when in active mode, module 42 allows detonator 12 to respond to a command signal to TRIG (which is emitted by the blast machine) by actuation and start of base charge 30 of initiator 20. When is in a safe mode, module 42 prevents detonator 12 from responding to a command signal to TRIP and the start of base charge 30 is prevented. In other words, the enable / disable module 42 makes the detonator set wireless 10 capable of actuation and produces detonation of the reinforcement charge 30, in response to a command signal to TRIP only when the state sensors 15 detect that the environmental condition falls within predetermined parameters suitable for the explosion. When the environmental condition falls outside the predetermined parameters suitable for the explosion, maintaining the wireless detonator set, otherwise a safety mode unable to receive and / or respond to a command signal to SHOOT.
    [0045] Similarly, in certain cases, the inability of the state sensor to detect an adequate environmental condition may be indicative of an incorrect or inadequate arrangement of the set 10. On the other hand, in certain cases, the detection of an environmental condition may be indicative of an incorrect or inadequate arrangement of the set 10. In a mode in which the state sensors are light sensors, for example, the detection of any light is indicative that the set is located outside a hole.
    [0046] In the mode illustrated in Figures 2 to 4, the activation / deactivation module 42 takes the form of a switch in the trigger circuit 43, in such a way that, when the state sensors 15 detect suitable environmental conditions for an explosion , the set 10 adopts or maintains an active state and the switch is closed to connect the trigger circuit 43 to the base load 30, ready to act on the base load (after receipt by the receiving module and command signal processing 40 of a command signal for SHOOTING). However, when the state sensors 15 detect inappropriate environmental conditions for explosion, the assembly adopts or maintains a safety state and the switch is open so that the base load 30 cannot receive any signal for its performance, even the command signal processing and receiving module 40 receives and processes a command signal to TRIG.
    [0047] Thus, the wireless detonator set 10 adopts or maintains an inadequate security state to receive and / or respond to a command signal to SHOOT. This has the advantage of minimizing the risk of accidental or accidental action. This increases the security of the wireless detonator set 10.
    [0048] In at least some alternative modalities, the activation / deactivation module can take the form of a switch in the command signal receiving and processing module in such a way that, when the state sensor (s) detects appropriate environmental conditions for an explosion, the array adopts or maintains an active state and the switch is closed to activate part or all of the command signal processing and receiving module and the array can receive and respond to a command signal to SHOOT. In such a modality, when the state sensor (s) detects inadequate environmental conditions for the explosion, the assembly adopts or maintains a state of safety and the switch is open, so that part or all of the command signal receiving and processing module does not receive, process and / or respond to a command signal to SHOOT.
    [0049] In the modalities of Figures 1 to 4, the electronic circuit is entirely contained within or attached to a single housing. However, in some alternative modalities, some selected electrical components / modules are kept in a top-box above the ground and connected by wires to a detonator under the ground. Longer wires can be used, for example, to connect parts of the electronic circuit. In addition, any of the wired connections can be replaced by wireless connections, including, but not limited to, optical fiber, RF, IR, Bluetooth or other wireless connection, so that the components of a wireless detonator set , as well as other components and / or associated devices can be physically separated from each other, but still operate as part of the same device or assembly.
    [0050] Figure 5 illustrates a method of blowing up a rock previously drilled with one or more holes. The method includes the steps of:
    [0051] - in step 101, assign to each hole at least one wireless detonator set as described in this document;
    [0052] - in step 102, optionally use a manual device or recorder to communicate with each set assigned to read data from each detonator and / or to program data in each detonator;
    [0053] - in step 103, connect each set to an explosive material to form an initiator;
    [0054] - in step 104 place each initiator in the hole;
    [0055] - in step 105, load explosives into each hole;
    [0056] - in step 106 optionally plug each hole;
    [0057] - in step 107 transmit wireless command signals to control and TRIG each set.
    [0058] The method also includes, in step 108, the detection of at least one environmental condition in an immediate vicinity of each wireless detonator set, with each set being incapable of action if at least one detected environmental condition is or comes to be unfavorable or fall outside predetermined conditions for explosion. In Figure 5, step 108 occurs after step 107. However, in some alternative embodiments, step 108 can occur before, after, or concurrently with any of steps 101 to 107.
    [0059] In step 107, the control signals can comprise any form of wireless signals as described in this document, but in selected modalities they can consist of RF or magneto-inductive signals.
    [0060] Optionally, the detection of at least one environmental condition can be specific to the environmental conditions that are expected to be normally associated with an explosion site, or specific to a specific explosion site, so that the inability to satisfy the parameters predetermined in relation to at least one environmental condition is indicative of the absence of the wireless detonator assembly at the site of the explosion or the inappropriate arrangement of the wireless detonator assembly. Alternatively, the detection of the environmental condition (s) can be specific to the environmental conditions that are expected to be normally present inside a borehole, so that the inability to satisfy predetermined parameters in relation to the ) environmental condition (s) for a specific wireless detonator assembly is indicative that the wireless detonator is not properly positioned inside a hole.
    [0061] In any of the methods disclosed in this document, each wireless detonator assembly may optionally further comprise a remote top-box of the detonator hull and its associated components, positioned top-box at or above ground level, and the detection of environmental conditions occurs either at or above ground level at each hole. Alternatively, each wireless detonator assembly may include a container or housing to contain or house at least the non-detonator components of the assembly.
    [0062] In any of the methods described in this document, the detection can detect at least one environmental condition selected from, but without limitation: temperature, light, vibration, humidity, density. In any of the methods described in this document, optionally at least step 101 and optionally other steps can be carried out within a "deployment window", within which no detection occurs, or each wireless detonator set does not respond to such detection after which detection occurs and each wireless detonator responds to the detected environmental condition.
    [0063] The method may include an additional step of counting down a time window, within which each wireless detonator set detects the environmental condition (s) through its state sensors, and outside of which each wireless detonator set is inactive for not detecting its environmental condition (s). In this way, each wireless detonator set is only capable of receiving and / or processing a TRIG command signal if the following two conditions are met: the command signal for TRIG is sent and received by each wireless detonator set within a specific time window and each wireless detonator set "detects" environmental conditions in its immediate, appropriate and appropriate vicinity for the explosion.
    [0064] In selected modalities of the methods described in this document, the methods can also comprise an optional step of: transmission by each wireless detonator set to an associated explosion machine, manual device or recorder, of data corresponding to the (s) environmental condition (s) in the immediate vicinity of each wireless detonator set at the blast site. In this way, an explosion machine, manual device or recorder can collect and optionally record or process information regarding environmental conditions at the explosion site and its suitability for explosion, as these conditions are detected by the wireless detonator sets. This data collection itself has significant security advantages, due to the wireless detonator sets described in this document.
    [0065] For greater definition and clarity, any of the wireless detonator sets and explosion methods described in this document may involve a single detection event for environmental conditions in the immediate vicinity of each wireless detonator set (at a predetermined time, for example. example, after placing the detonator or at the request of the blast machine), or infrequent detection (when requested by an associated blast machine, for example) or periodic or continuous detection of environmental conditions for each wireless detonator. The modalities described in this document are not limited in this regard.
    [0066] Through careful investigation, the inventors of the present invention have determined that certain wireless detonators and prior art explosion systems are problematic with respect to the accidental or accidental actuation of detonators. Rapid and accurate wireless communication between an explosion machine and associated wireless detonators presents a difficult challenge, regardless of the nature of wireless communication systems. One of the most important signals that must be properly and accurately processed by a wireless detonator is the TRIP signal. The failure of communication systems to fire detonators on command, due to improper detonator action at any time, can result in a significant risk of serious injury or death to anyone handling or detonating detonators. The prevention of involuntary or accidental detonator action is of utmost importance for explosion operations.
    [0067] Wireless detonator sets and explosion methods involving wireless detonator sets are described in this document. The wireless detonator sets use an unprecedented combination of components that, together, provide means to prevent or at least substantially prevent the detonator from involuntary action especially when the detonators are not properly positioned as required for the explosion at the site. explosion. In certain specific embodiments, the wireless detonator sets comprise one or more state sensors for single, continuous or intermittent collection or the detection of the environmental condition (s) in the immediate vicinity of each wireless detonator set. In this way, wireless detonator sets are enabled to be fired only if the environmental condition (s) fall within predetermined parameters. Otherwise, at least in selected modalities, the wireless detonator sets can switch to or remain in "safe mode", in which the wireless detonator sets are unable to receive or unable to act upon command without a command signal. wire to SHOOT.
    [0068] The wireless detonator sets of the present invention generally comprise an electronic detonator or detonator and can typically be used at the explosion site in conjunction with an explosion machine. The blast machine can transmit at least one wireless command signal to each wireless detonator assembly such as, but without limitation, command signals for ARM, DISARM or SHOOT. In selected modes, the wireless detonator set comprises:
    [0069] - a detonator comprising a hull and a base charge for actuation;
    [0070] - command signal processing and receiving module to receive and process at least one wireless command signal from the blast machine;
    [0071] - at least one state sensor to detect at least one environmental condition in an immediate vicinity of the wireless detonator set;
    [0072] - an activation / deactivation module to make the wireless detonator set capable of acting in response to a command signal to TRIG when the at least one state sensor detects that the at least one environmental condition falls within predetermined parameters suitable for the explosion, otherwise maintaining the wireless detonator set in a safe mode unable to receive and / or respond to a command signal to SHOOT; and
    [0073] - at least one power source to supply power to the command signal receiving and processing module, at least one state sensor, and the activation / deactivation module.
    [0074] The hull of the detonator can take any shape including those that are familiar in the art, along with a base charge typically, but not necessarily, located towards one end of the detonator hull. The command signal processing and receiving means may take any form suitable for this purpose, receive any form of wireless signals including, but not limited to, electromagnetic signals (from radio waves, for example, including low frequency radio waves) and ultra low frequency, light), acoustic signals etc. For command signals that use electromagnetic radiation within the radio frequency range, for example, a command signal receiving and processing module can comprise an RF receiver and associated electronic components to allow the processing or interpretation of RF signals so that the wireless detonator assembly can act. For radio signals transmitted to the wireless detonator sets positioned underground, low-frequency or ultra-low-frequency radio waves may be preferred, with the appropriately adapted command and processing signal module.
    [0075] The at least one status sensor is a useful feature integral to the wireless detonator assembly, but each status sensor can be located in any position relative to the detonator hull, inside or outside the detonator hull, for example, optionally , inside a separate container or housing or as part of or connected to the detonator, or as a component of a top-box designed to be positioned at or above ground level at the explosion site, in short distance communication by wire or cordless with other components of the wireless detonator set located inside the hole in the rock. In other embodiments, where a detonator as described in this document is part of a wireless electronic booster or the corresponding initiator, each sensor or state sensors may even be located in a housing or housing of the wireless electronic booster or initiator or in the proximity of the reinforcer or initiator. If the status sensor is a photocell to detect light, the status sensor can be located on a surface of the wireless electronic reinforcer housing or casing or extend through it, such that the light detection by the photocell deactivates or keep a detonator located inside the housing or enclosure or substantially inside it inactive.
    [0076] Each state sensor can be of a type that captures any environmental condition such as, but not limited to, the following list of parameters, within the immediate vicinity of the wireless detonator: temperature, light levels, vibration, acceleration, humidity , density of surrounding material, pressure of surrounding material, movement. Each wireless detonator set can optionally include one more or actually several different types of state sensors, so that the set captures more than one environmental condition, the wireless detonator set can only be active to receive a TRIG command signal. and respond to it, if all state sensors detect that the respective environmental condition is within the predetermined parameters as being suitable for the explosion.
    [0077] A wireless detonator assembly may comprise state sensors, for example, which include a combination of a light sensor and an accelerometer. During transport and / or placement of wireless detonator sets, the light sensor will be exposed (at least periodically) to light, and the accelerometer will pick up (at least periodically) accelerations caused by vibrations and other movements. Thus, any detection of light, movement or vibration by the state sensors can result in the deactivation (or maintenance) of a "safe mode" for the wireless detonator set, by the activation / deactivation module.
    [0078] Only when the light sensor detects the absence of light (or a reasonably low light level) and the vibration sensor does not detect any vibration (or a reasonably low level of vibration) (optionally for a predetermined minimum period of time) These environmental conditions would fall within the parameters of the predetermined environmental conditions as being suitable for the explosion, as these conditions would correspond to the expected environmental conditions after placing the wireless detonator set inside a hole in association with a reinforcer and explosive material, according to the proper installation for an explosion.
    [0079] Each of the wireless detonator sets also includes at least one power source to supply power to the components of each wireless detonator set, including, but not limited to, the command signal processing and receiving module and at least a status sensor. Such a power source may simply comprise a battery or chargeable device such as a capacitor. Alternatively, the energy source can be a micronuclear energy source, or any other means for the supply of electrical energy. In other embodiments, a wireless detonator may include more than one energy source, including, for example, an active energy source and a passive energy source and corresponding characteristics as instructed, for example, in US patent 7,568,429, issued on August 4, 2009, the content of which is incorporated into this document as a reference.
    [0080] The wireless detonator sets described in this document also comprise an activation / deactivation module that operates in conjunction with the state sensor or sensors. The activation / deactivation module comprises any means to selectively activate and / or selectively deactivate the function of the wireless detonator sets to receive or respond to wireless command signals and more specifically to a wireless command signal to SHOOT, in accordance with the environmental condition (s) detected by the state sensor (s). Only when at least one state sensor detects that the environmental condition falls within predetermined parameters suitable for the explosion does the activation / deactivation module make the wireless detonator capable of receiving and / or capable of acting upon receiving a command to SHOOT. Non-limiting examples of the activation / deactivation module will become apparent with the following.
    [0081] In one example, the wireless detonator assembly may further comprise a trigger circuit associated with a base charge that can be actuated by applying a current through the trigger circuit. In such embodiments, the activation / deactivation module may comprise a switch to open the trip circuit when the at least one state sensor detects environmental conditions that fall outside predetermined parameters suitable for the explosion, thus preventing current from passing through the explosion. trip circuit, and to prevent the base load from acting, even if the command signal processing and receiving module has received a command signal to TRIP.
    [0082] In another example, each wireless detonator set can optionally comprise a charge storage device, such as a capacitor together with a trigger circuit, so that after receipt by the receiving module and processing the command signal from a command signal for SHOOTING, the capacitor is connected via the trigger circuit to the base load. This in turn can produce enough current in the trip circuit to act on the base load. In such embodiments, the activation / deactivation module may, for example, comprise discharge means to selectively bleed charge from the charge storage device as long as at least one state sensor detects environmental conditions that fall outside the predetermined parameters suitable for the explosion.
    [0083] The examples above are non-limiting and simply illustrate the types of activation / deactivation modules that may be suitable for modulating the responsiveness of a wireless detonator assembly as described herein to environmental conditions in its immediate vicinity, when detected by the state sensor (s).
    [0084] Thus, the wireless detonator set disclosed in this document comprises a state sensor or sensors that operate in conjunction with an activation / deactivation module to control whether or not each wireless detonator set is in a condition suitable to act over the detonator (after receiving a command signal to SHOOT). The state sensors for a specific wireless detonator set can be selected in terms of the environmental condition they detect, or in terms of their sensitivity to that environmental condition, depending on the transport, storage and intended end use of the wireless detonator set. The state sensors for a specific wireless detonator set, for example, can be selected to detect a specific environmental condition associated with an explosion site, such that the inability to meet predetermined parameters in relation to the condition (s) environmental (s) may be indicative of the absence of the wireless detonator assembly at the explosion site or an improper placement of the wireless detonator assembly at the explosion site. Alternatively, the at least one state sensor can be selected to capture environmental conditions normally associated with conditions within a hole in the rock to be exploded, such as a temperature, humidity, specific pressure, or even environmental conditions associated with the rock or material surrounding area, such as density.
    [0085] Environmental conditions such as exposure to light, or the detection of movement, acceleration or vibration, can be associated with the transport or placement of the wireless detonator assembly before the explosion. Thus, in certain modalities, the state sensors can be selected appropriately, with each wireless detonator set remaining in an inactive condition unable to receive command signals to TRIG or respond to them while any light or movement is detected by its sensors. of state.
    [0086] Each status sensor can be placed in any position in relation to the detonator hull and certain positions may be preferred depending on the specific environmental condition being detected. Some status sensors can be located inside each detonator hull, for example, thus protected against water damage or infiltration during transport or the wireless detonator assembly arrangement. However, such state sensors when located inside the detonator hull may optionally be able to detect at least one environmental condition on an external part of the detonator hull. It may be necessary to locate other status sensors on an exterior part of a detonator hull to perform its detection function or it may be necessary to locate them inside or outside a container or housing for components of the assembly. Some wireless detonator sets may further comprise a remote top-box from the detonator hull and associated components, to remain either at or above ground level when the wireless detonator set is placed in an explosion site, and may at least a status sensor is associated with the top-box. If a specific state sensor detects, for example, that a specific wireless detonator set can receive radio signals from an explosion machine, then, unless the RF signals are suitable to pass through the rock, it may be better than the status sensor is positioned at or above ground level.
    [0087] However, selected modalities are not limited to the use of top boxes, and include wireless detonator sets in which the non-detonating components are located or housed in a housing or in another container or remote detonator (with a communication wireless with the detonator) or with a wired connection to the detonator or separated from the detonator or physically attached to the detonator. The status sensors can be located inside the top-box, container or housing present or on or through an outer surface or housing of any top-box, container or housing present.
    [0088] Each status sensor can also be positioned on other components in the vicinity of the detonator or be in association with these components. If the detonator is part of a wireless electronic reinforcer or corresponding initiator, for example, the assembly may be contained or substantially retained within a housing or enclosure for the corresponding wireless electronic reinforcer or initiator or be connected to this housing or enclosure . Depending on the nature of the state sensors to be employed, it may be preferable to have the state sensors located in such a way, that they extend through the housing or enclosure, or are located on an external surface of the housing or enclosure. In this way, each state sensor can detect environmental conditions immediately in the vicinity of the outside of the housing or enclosure. If each status sensor is a photocell or light detector, for example, any light that falls on the exterior of the wireless electronic reinforcer housing or initiator would indicate an absence or inadequate arrangement of the wireless electronic reinforcer at the explosion site . In turn, the light detected by the state sensors positioned to detect light outside the housing or housing, results in the transmission, or maintenance, of a signal to an assembly located inside or substantially inside or connected to the housing or housing, making so that the group adopts or maintains an inactive state unsuitable for performance.
    [0089] In yet other embodiments, each wireless detonator set can optionally also comprise a clock for counting down a "deployment window". Each deployment window can be a previously selected time window within which the state sensor is inactive or within which the wireless detonator does not respond to the state sensor (s). When the clock has completed the countdown of the implantation window, the at least one status sensor can then start or restart the capture of the environmental condition (s). In this way, the use of a clock to provide an implantation window allows the state sensors to remain dormant (or the wireless detonator set to remain unresponsive to the state sensors) for at least a suitable period of time, for example, so that the wireless detonator sets are implanted and arranged in the holes in the rock. After the deployment window has expired, wireless detonators can then adopt or revert to a condition that responds to the environmental condition (s) in the immediate vicinity of the wireless detonator assemblies as captured by the sensors. of state. Each clock can be programmed with any time for the implantation window, such as, but not limited to, 5, 15, 60 or 120 minutes or more depending, for example, on the explosion arrangements, the conditions of the explosion site, the distance from the control location to the explosion etc.
    [0090] In other embodiments, the wireless detonator sets may comprise a clock for counting down a time window within which the wireless detonator set detects, or is receptive to, detection by means of the state sensors, a ( s) environmental condition (s) of its immediate neighborhood, maintaining each wireless detonator set in an inactive state inadequate for the detonator to act. In such modalities, therefore, each wireless detonator set remains inactive and unable to respond to a command signal to TRIGGER, receive and / or process it, unless the set is within the time window and unless that the assembly is in a suitable and appropriate environment for the explosion.
    [0091] In other exemplary embodiments, the wireless detonator sets disclosed in this document may further comprise means of transmitting wireless signals, for transmission to an associated explosion machine, manual device or recorder, data corresponding to the condition (s) (s) environmental (s) in the immediate vicinity of each wireless detonator set at the explosion site for each wireless detonator set. In this way, any associated blast machine, manual device or recorder can collect and optionally process information regarding environmental conditions at the blast site (such as the environmental conditions inside the holes in the blast site) and the suitability of these conditions for execution of an explosion event. This data collection itself has significant security advantages, due to the wireless detonators disclosed in this document.
    [0092] Although the invention has been described with reference to specific modalities of wireless detonator sets, explosion systems and explosion methods, those skilled in the art will note that other wireless detonator sets, explosion systems and explosion methods that have not specifically described would nevertheless fall within the scope of the invention. It is intended that all of these modalities fall within the scope of the attached claims.
    权利要求:
    Claims (15)
    [0001]
    1. Wireless detonator assembly (10) for use in connection with an explosion machine that transmits at least one wireless command signal to the wireless detonator assembly, comprising: - a detonator (12) comprising a hull and a charge of basis for performance; - command signal receiving and processing module (40) to receive and process at least one wireless command signal from the blast machine; - at least one state sensor (15) to detect at least one environmental condition in an immediate vicinity of the wireless detonator assembly; and - an activation / deactivation module (42) to make the wireless detonator assembly capable of acting in response to a TRIG command signal when at least one state sensor detects that at least one environmental condition falls within parameters predetermined suitable for the explosion, otherwise maintaining the wireless detonator set in a safe mode unable to receive and / or respond to a command signal to SHOOT; and a detonation circuit (43) associated with the base charge, characterized by the fact that the detonation circuit includes a charge storage device so that upon receipt by the receiving module and processing a command signal to SHOOT , the charge storage device can discharge a current in the detonation circuit, the current in the detonation circuit being sufficient to act on the base charge, and the activation / deactivation module comprising discharge means to selectively bleed the charge from the charge storage device, to render the wireless detonator assembly unable to act when the at least one state sensor detects environmental conditions that fall outside the predetermined parameters suitable for the explosion
    [0002]
    2. Assembly according to claim 1, characterized by the fact that the command signal processing and receiving module (40) comprises an RF receiver.
    [0003]
    3. Assembly according to claim 1 or 2, characterized by the fact that the at least one state sensor (15) detects at least one environmental condition of the detonating assembly, such that the failure to detect an environmental condition A suitable indicator indicates the absence of the wireless detonator assembly at the explosion site or an inadequate arrangement of the wireless detonator at the explosion site.
    [0004]
    Assembly according to any one of claims 1 to 3, characterized in that the at least one state sensor (15) detects for at least one environmental condition that is normally associated with conditions within a hole in the rock to be blown up.
    [0005]
    Assembly according to any one of claims 1 to 4, characterized in that the at least one state sensor (15) is located inside the hull of the detonator.
    [0006]
    6. Assembly according to any one of claims 1 to 5, characterized in that it further comprises a remote top-box of the detonator hull and associated components, to remain at or above the ground level when the wireless detonator assembly is placed in an explosion site.
    [0007]
    7. Assembly according to any one of claims 1 to 6, characterized in that it also comprises a container or housing to contain or house at least the components of the assembly in addition to the detonator, with a wire or wireless connection between the other components and the detonator.
    [0008]
    8. Assembly according to any one of claims 1 to 7, characterized in that it further comprises a switch for opening the detonation circuit when the at least one state sensor detects that at least one environmental condition falls outside the parameters predetermined suitable for the explosion, in order to prevent the actuation of the base load even if a command signal to SHOOT was received by the command receiving and processing module.
    [0009]
    9. Assembly according to claim 1, characterized by the fact that a charge storage device includes a capacitor.
    [0010]
    10. Assembly according to any one of claims 1 to 9, characterized by the fact that it also comprises a clock for counting down an implantation window, within which at least one state sensor is inactive, or within the which the wireless detonator does not respond to at least one status sensor, after which the at least one status sensor (15) detects at least one environmental condition in the immediate vicinity of the detonating assembly, and the detonating assembly responds to at least an environmental condition.
    [0011]
    11. Assembly according to any one of claims 1 to 10, characterized by the fact that it also comprises a clock for counting down a time window for an explosion event, the state sensors (15) being active to detect at least one environmental condition of the immediate proximity of the set only within the time window.
    [0012]
    12. Assembly according to any one of claims 1 to 11, characterized by the fact that each state sensor (15) detects at least one environmental condition selected from: temperature, light, movement, acceleration, vibration, humidity, density and pressure.
    [0013]
    13. Assembly according to any one of claims 1 to 12, characterized by the fact that it also comprises wireless signal transmission means, for transmission to an associated explosion machine, manual device or recorder, data corresponding to the condition in its immediate vicinity at the site of the explosion.
    [0014]
    14. Rock blast method previously drilled with holes, comprising the steps of: 1) assigning to each hole at least one wireless detonator set, as defined in any one of claims 1 to 13; 2) optionally using a manual device or recorder to communicate with each set assigned to read data from each set and / or program data for each set; 3) connect each set to an explosive material to form an initiator; 4) place each primer in the hole; 5) load explosives into each hole; 6) optionally, plug each hole; 7) transmit wireless command signals to control and TRIG each detonator; characterized by the fact that at any time the method further comprises: detecting at least one environmental condition in an immediate vicinity of each wireless detonator set, at any time one of the wireless detonating sets detects that at least one of the environmental conditions affects or comes to fall outside predetermined parameters for the explosion, the discharge means of the wireless detonator sets bleed the charge from the charge storage device to render that set incapable of acting.
    [0015]
    15. Electronic wireless initiator for use in connection with an explosion machine, the electronic initiator controlling the explosion machine by means of at least one wireless command signal, characterized by the fact that it comprises: - the detonator set without yarn (10) as defined in claim 1; - an explosive charge in operative association with the detonator (12), in such a way that the action of the base charge produces the action of the explosive charge; - said command signal processing and receiving module (40) in signal communication with the detonator (12), so that after receiving a TRIG command signal by the command signal processing and receiving module (40), acts on the base charge and consequently on the explosive charge, provided that at least one state sensor detects environmental conditions that fall within predetermined parameters suitable for the explosion.
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    同族专利:
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    AU2012249562B2|2016-10-06|
    RU2013152738A|2015-06-10|
    AU2012249562A1|2013-11-14|
    EP2702349A4|2014-10-29|
    RU2608745C2|2017-01-24|
    CL2013003110A1|2014-08-08|
    US20140053750A1|2014-02-27|
    ZA201308055B|2020-02-26|
    EP2702349A2|2014-03-05|
    JP2014517240A|2014-07-17|
    KR20140063523A|2014-05-27|
    KR102004452B1|2019-07-26|
    PE20141779A1|2014-11-19|
    CA2834390C|2019-08-13|
    EP2702349B1|2015-11-25|
    JP6109814B2|2017-04-05|
    SG194664A1|2013-12-30|
    WO2012149277A3|2013-03-21|
    WO2012149277A2|2012-11-01|
    US10267611B2|2019-04-23|
    ES2563827T3|2016-03-16|
    BR112013027605A2|2017-03-14|
    CA2834390A1|2012-11-01|
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    法律状态:
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-22| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-03-24| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
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    申请号 | 申请日 | 专利标题
    US201161480021P| true| 2011-04-28|2011-04-28|
    US61/480,021|2011-04-28|
    PCT/US2012/035397|WO2012149277A2|2011-04-28|2012-04-27|Wireless detonators with state sensing, and their use|
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