JP5197656B2 - Electronic delay detonator device and electronic detonator blasting system - Google Patents

Description

  The present invention relates to an electronic delay detonator device and an electronic detonator explosion system (ELECTRONIC DELAY DETONATION APPARATUS AND ELECTRONIC DETONATION BLASTING SYSTEM). The present invention relates to an electronic delay detonator device and an electronic detonator blasting system.

  Generally, when building a lower foundation for a high-rise building or other large ground structure, or building an underground structure such as a subway or underground tunnel, the rock mass will be excavated. At this time, the rock mass is blasted and crushed with an explosive such as dynamite. To blast the rock mass, a large number of blast holes are excavated in the rock mass, and the explosive is inserted into the rock mass for blasting.

  The device that guides the explosives mounted on the bedrock to the explosion is called the detonator device. The electrical energy supplied from the blasting device is charged to the energy charging unit, and the desired delay time has elapsed in response to the charged electrical energy. Thereafter, an electronic delay detonator device that performs a switching operation is known in Patent Document 1 below.

  On the other hand, many electronic delay detonator devices are connected in parallel at the time of blasting. However, Patent Document 1 does not disclose a method capable of inspecting whether a large number of electronic delay detonator devices are properly connected at the time of blasting.

  In addition, the electronic delay detonator device ends its use after a single use, but Patent Document 1 uses a high-cost constant voltage circuit to supply rated power to the IC timer, which increases production costs. There was a problem.

  Furthermore, in the case of the electronic delay detonator device of Patent Document 1, when a DC power source or an AC power source is supplied from an external device that is not a blasting device, the detonator device operates and ignites, which causes a problem in stability. .

Korean Patent Publication No. 1999-0035969

  In order to solve the above-described problems, an object of the present invention is to provide an electronic delay detonator device and an electronic detonator blasting system capable of preventing misfire by inspecting connection of ignition elements before blasting. .

  Further, the present invention provides an electronic delay detonator device and an electronic detonator blasting system with improved stability, which are provided with a band-pass filter and operate only when power having a predetermined frequency is supplied. Objective.

  In addition, the present invention provides an electronic delay detonator device and an electronic detonator blasting system that reduce production costs by providing an operating voltage to a microcomputer using a simple distribution circuit that eliminates a high-cost constant voltage circuit. The purpose is to do.

  It is another object of the present invention to provide an electronic detonator blasting system including a blasting device that adjusts an output voltage based on the number of connected electronic delay detonator devices and the line resistance value of a power cable.

  In order to achieve the above-described object, according to the present invention, in an electronic delay detonator device for igniting an ignition element, an ignition output terminal connected to the ignition element and an input of a power source supplied from an external device are received. A power input terminal, an energy charging unit for charging energy from a power source supplied to the power input terminal, and a predetermined time after the energy charged in the energy charging unit reaches a predetermined voltage value. A time control unit that delays and outputs a trigger signal; an ignition switching element that supplies energy charged in the energy charging unit to the ignition element in response to the trigger signal; and a line of the power input terminal Two resistors each connecting the lines of the ignition output terminals.

  The time control unit preferably includes a programmable microcomputer and a voltage distribution circuit that distributes energy charged in the energy charging unit to a power supply terminal of the microcomputer to provide a constant voltage.

  A first capacitor may be connected between the internal ground line and the power supply terminal of the microcomputer, and a second capacitor and a resistor may be connected between the positive line of the energy charging unit and the power supply terminal of the microcomputer. it can.

The power supplied from the external device is a power having a predetermined frequency,
It is preferable that a band-pass filter for allowing a power source having the predetermined frequency to pass between the power input terminal and the energy charging unit.

  The electronic delay detonator device may further include a rectification unit for rectifying the power supplied from the external device.

  The present invention relates to a blast detonator system having an electronic delay detonator device for igniting an ignition element and a blast device for supplying power to the electronic delay detonator device through a power cable. Is charged with energy from an ignition output terminal connected to the ignition element, a power input terminal for receiving an input of power supplied from the blasting device through the power cable, and a power supplied to the power input terminal An energy charging unit for delaying a predetermined time after the energy charged in the energy charging unit reaches a predetermined voltage value, and outputting a trigger signal in response to the trigger signal An ignition switching element for supplying energy charged in the energy charging unit to the ignition element, and the power input terminal A detonator power supply unit for supplying power to the electronic delay detonator device through the power cable, and the electronic delay detonator device. And a voltage controller for controlling the detonator power supply unit so as to adjust an output voltage of a power source supplied to the electronic delay detonator device based on the number of connected to each other. can do.

  It is preferable that the voltage control unit controls the detonator power supply unit so as to adjust an output voltage of a power source supplied to the electronic delay detonator device in consideration of a line resistance value of the power cable.

  It is preferable that the blasting device further includes a connector for connecting the power cable, and a blasting switching unit that is driven by an operation of a blasting switch between the voltage control unit and the connector.

  Preferably, the blasting device further includes an input unit for setting the number of connected electronic delay detonator devices and the line resistance value of the power cable.

  According to the present invention, for a large number of electronic delay detonator devices connected in parallel, in order to prevent some misfires by inspecting the connection of ignition elements before blasting, the desired accurate blasting is induced. Can do.

  In addition, according to the present invention, it is possible to improve the stability of the electronic delay detonator device by providing a band pass filter and operating only when power having a predetermined frequency is supplied.

  In addition, according to the present invention, the production cost of the electronic delay detonator device can be reduced by providing the rated voltage to the microcomputer using a simple distribution circuit from which the high-cost constant voltage circuit is removed.

  Furthermore, according to the present invention, the delay error of the electronic delay detonator device can be minimized by adjusting the output voltage based on the number of connected electronic delay detonator devices and the line resistance value of the power cable.

It is the figure which showed the block diagram of the electronic delay detonator apparatus by one Example of this invention. FIG. 2 is a circuit diagram more specifically showing a block diagram of the electronic delay detonator device of FIG. 1. It is the figure which showed the block diagram of the electronic delay detonator apparatus by other Examples of this invention. It is the figure which showed the block diagram of the electronic detonator blasting system by one Example of this invention. FIG. 5 is a block diagram showing the blasting device shown in FIG. FIG. 6 shows the blasting device shown in FIG. 5 in detail.

  Hereinafter, an electronic delay detonator device and an electronic detonator blasting system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a block diagram of an electronic delay detonator according to an embodiment of the present invention.

  As shown in FIG. 1, the electronic delay detonator device 100 is connected to the blasting device 300 through the power cable 200.

  The electronic delay detonator device 100 includes a power input terminal 110, a rectifier 130, an energy charger 140, a time controller 150, an ignition switching element 160, an ignition output terminal 170, two inspection resistors Rt1 180 and Rt2 182, and Ignition element 190 is included.

  The power input terminal 110 is connected to the power cable 200 by soldering or the like. The output power of the blasting device 300 supplied to the power input terminal 110 is supplied to the rectifying unit 130 through the power supply lines 112 and 114.

  The rectifying unit 130 is provided between the power input terminal 110 and the energy charging unit 140, and rectifies and outputs the power supplied from the blasting device 300. Since the polarity of the power source input to the power input terminal 110 by the rectifying unit 130 and the polarity of the energy charging unit 140 are matched, it is possible to perform connection work and the like, ignoring the polarity, and improve work efficiency. Can do.

  The energy charging unit 140 charges energy from the power source supplied from the blasting device 300. The energy charged in the energy charging unit 140 is supplied to generate the operation power necessary for the time control unit 150, and is supplied to ignite the ignition element 190.

  When the energy charged in the energy charging unit 140 reaches a predetermined voltage value and the operation power is supplied, the time control unit 150 outputs a trigger signal after being delayed by a set time.

  When a trigger signal is provided from the time controller 150, the ignition switching element 160 is turned on and short-circuited. When the ignition switching element 160 is turned on, the energy charged in the energy charging unit 140 is supplied to the ignition element 190 through the ignition output terminal 170, so that the ignition element 190 is ignited.

  The inspection resistors Rt1 180 and Rt2 182 are resistors for inspecting whether the ignition element 190 is properly connected. The inspection resistor Rt1 180 is connected to the power line 112 of the power input terminal 110 and the input line 172 of the ignition element, and the inspection resistor Rt2 182 is connected to the power line 114 of the power input terminal 110 and the input line 174 of the ignition element. With these inspection resistors Rt1 180 and Rt2 182, it is possible to inspect whether the ignition element 190 is properly connected to the ignition output terminal 170 at the power input terminal 110.

  FIG. 2 is a circuit diagram more specifically showing a block diagram of the electronic delay detonator device of FIG.

  The rectification unit 130 is a radio rectification circuit including four diodes D1 132, D2 134, D3 136, and D4 138, and the energy charging unit 140 includes a capacitor C1 142 having a large capacity.

  Time controller 150 includes programmable microcomputer IC1 151, resistors R3 153 and R4 154 for supplying operating power to terminal 8 of microcomputer IC1 151, and supplying a reset signal to terminal 1, capacitor C2 155 and capacitor Consists of C3 156. The microcomputer IC1 151 includes an internal oscillation unit 252, a timer function unit 254, a trigger signal generation unit 256, a reset operation unit 258, and a storage unit 260, and a trigger signal is output to the terminal 5. The storage unit 260 stores a set period to be delayed. In addition, the resistor R3 153, the capacitor C2 155, and the capacitor C3 156 are voltage distribution circuits for supplying a constant voltage to the terminal 8 of the microcomputer IC1 151. Since the constant voltage IC is not used, the cost can be reduced.

  The ignition switching element 160 includes a thyristor SCR 162, and a trigger signal of the time control unit 150 is supplied to the gate of the thyristor SCR 162 through a resistor R5 158.

  On the other hand, the ignition element 190 includes an ignition resistor Rb1 192, and the ignition resistor Rb1 192 is connected to the ignition output terminal 170. The ignition resistance Rb1 192 has a very small resistance value, for example, a resistance of about 0.1Ω.

  Once the electronic delay detonator device 100 shown in the block diagram of FIG. 1 and the circuit diagram of FIG. 2 is manufactured, the operator should check whether the ignition resistor Rb1 192 is properly connected to the ignition output terminal 170. Can do.

  Hereinafter, the operation of the electronic delay detonator will be described with reference to the block diagram of FIG. 1 and the circuit diagram of FIG.

  First, when the power supplied from the blasting device 300 is input to the power input terminal 110, the power is rectified by the radio wave diodes D1 132, D2 134, D3 136, and D4 138 of the rectifying unit 130, so that the energy charging unit 140 The capacitor C1 142 is charged with energy.

  When the power supplied from the blasting device 300 is continuously input to the power input terminal 110, energy is subsequently charged in the capacitor C1 142 of the energy charging unit 140, thereby increasing the charging voltage. As the charging voltage of the energy charging unit 140 increases, the voltage of the capacitor C3 156 also increases, and the operating voltage is supplied to the terminal 8 of the microcomputer IC1 151. Although the microcomputer IC1 151 is operable, a reset signal is supplied through the terminal 1, so that the reset operation unit 258 operates and resets.

  When the reset of the reset operation unit 258 is completed, the microcomputer IC1 151 operates the internal oscillation unit 252. When the operation of the internal oscillation unit 252 is stabilized, the set time stored in the storage unit 260 is read and the timer function unit Operate 254. When the set time set in the timer function unit 254 is completed, the microcomputer IC1 151 operates the trigger signal generation unit 256 to generate and output a trigger signal.

  The trigger signal output from the microcomputer IC1 151 is supplied to the gate terminal of the thyristor SCR 162 of the ignition switching element 160 through the resistor R5 158, and the thyristor SCR 162 is turned on. As a result, the energy charged in the capacitor C1 142 of the energy charging unit 140 is supplied to the ignition resistor Rb1 192 of the ignition element 190, so that the ignition resistor Rb1 192 generates heat and ignition occurs.

  FIG. 3 is a block diagram of an electronic delay detonator according to another embodiment of the present invention.

  As shown in FIG. 3, the electronic delay detonator device 100 includes the power input terminal 110, the rectifier circuit unit 130, the energy charging unit 140, the time control unit 150, the ignition switching element 160, the inspection shown in FIGS. In addition to the resistor 170, the ignition output terminal 180, and the ignition element 190, a band pass filter (BPF) 120 is shown.

  The BPF 120 is a filter that passes through a power source having a frequency of several tens of KHz. For this reason, the blasting device 300 outputs a power supply having a frequency of several tens of KHz. If DC power or 60Hz normal power is supplied to the power input terminal 110 from another external device, these power cannot pass through the BPF 120 and be charged to the energy charging unit 140. It is possible to ensure stability by preventing malfunction due to supply. As an example of the BPF 120, capacitors C4 122 and C5 124 are shown in each of the power supply lines 112 and 114.

  FIG. 4 is a block diagram of an electronic detonator blasting system according to an embodiment of the present invention.

  As shown in FIG. 4, the electronic detonator blasting system includes a blasting device 300, and a number of electronic delay detonator devices 100-1, 100-2, 100-n are connected in parallel to the blasting device 300 through a power cable 200. .

  The electronic delay detonator device 100-1, 100-2, 100-n shown in FIG. 4 includes any one of the block diagram of FIG. 1, the circuit diagram of FIG. 2, and the block diagram of FIG.

  FIG. 5 is a block diagram showing the blasting apparatus shown in FIG.

  As shown in FIG. 5, the blasting device 300 includes a battery unit 510, an input unit 520, a display unit 530, a constant voltage unit 540, a voltage control unit 550, a detonator power supply unit 560, a blast switching 570, and a connector 580. .

  The battery unit 510 is connected in series with five batteries having a DC voltage of 6V. The output voltage 30 V of the battery unit 510 is supplied to the detonator power supply unit 560. On the other hand, since the operating voltage of the voltage control unit 540 or the like is 5 V or less, the down operating voltage is supplied through the constant voltage unit 540.

  The input unit 520 is for a user to input a set value required at the time of blasting to the blasting device 300. The user can connect the electronic delay detonator device 100 through the input unit 520 and the power cable. 200 line resistance values can be input. The display unit 530 displays a set value input through the input unit 520.

  The constant voltage unit 540 causes the 30V voltage output from the battery 510 to be converted to a 5V voltage, for example, and supplies the voltage control unit 550 and the like.

  The voltage control unit 550 displays the number of connected electronic delay detonator devices 100 input through the input unit 520 and the line resistance value of the power cable 200 on the display unit 530, and the input electronic delay detonator. Based on the number of connected devices 100 and the line resistance value of the power cable 200, the detonator power supply unit 560 is controlled to adjust the output voltage of the power supplied to the electronic delay detonator device 100. In addition, when a blast command is input through the input unit 520, the power supply control unit 550 operates the blast switching unit 570.

  The detonator power supply unit 560 adjusts the voltage 30 V output from the battery unit 510 to the output voltage of the power supplied to the electronic delay detonator device 100 under the control of the voltage control unit 550.

  The blast switching unit 570 is provided between the detonator power supply unit 560 and the connector 580. When the blasting command is input through the input unit 530, the voltage controller 550 operates the blasting switching 570. Supplied to the type delay detonator devices 100-1, 100-2, 100-n.

  On the other hand, as shown in FIG. 3, when the electronic delay detonator device 100 includes the BPF 120, in addition to the above-described configuration shown in FIG. 5, a frequency switching unit that switches to a power supply having a frequency of several tens of KHz. (Not shown) may be provided between the blast switching unit 570 and the connector 580.

  FIG. 6 shows the blasting device shown in FIG. 5 in detail.

  As shown in FIG. 6, the input unit 530 includes a blast switch SW1 534, a number setting switch SW2 536, a resistance value setting switch SW3 538, and an encoder switch 532.

  The blasting switch SW1 534 is a switch for supplying power to a large number of electronic delay detonator devices 100-1, 100-2, 100-n for the blasting of explosives, and the number setting switch SW2 534 is a large number of electronic delay detonators. A switch for setting the number of devices 100-1, 100-2, and 100-n, and a resistance value setting switch SW3 538 is a switch for setting a line resistance value according to the length of the power cable.

  The encoder switch 532 is for the user to set the number connected to the electronic delay detonator device 100 and the line resistance value of the power cable 200, and the number setting switch SW2 536 is turned on. The number connected to the type delay detonator device 100 can be set, and when the resistance value setting switch SW3 538 is turned on, the line resistance value of the power cable 200 can be set.

  The detonator power supply unit 560 includes a switching element 562, a capacitor C11 564, a resistor R11 566, and a resistor R12 568. The switching element 562 is turned on / off by the drive signal of the voltage control unit 550, and while the switching element 562 is turned on, energy is charged in the capacitor C11 564 and the voltage rises. When the voltage of the capacitor C11 564 increases, the voltage distributed by the resistor R11 566 and the resistor R12 568 is provided to the voltage controller 540. The voltage control unit 540 turns off the switching element 562 when the voltage of the capacitor C11 564 reaches the target voltage.

  The blast switching unit 570 includes a switching element 572 and a discharge resistor R13. When the user presses blast switch SW1 532, voltage control unit 540 outputs a drive signal that turns on switching element 572. When the switching element 572 is turned on, the energy charged in the capacitor C11 562 of the detonator voltage supply unit 560 is transferred to a large number of electronic delay detonator devices 100-1, 100-2, 100-n through the power cable 200 connected to the connector 580. Supplied.

  The operation of the electronic detonator blasting system will be described below with reference to the block diagram of the electronic detonator blasting system in FIG. 4, the block diagram of the blasting apparatus in FIG. 5, and the detailed drawing of the blasting apparatus in FIG.

  When attempting to blast the bedrock, the operator connects a number of electronic delay detonator devices 100-1, 100-2, 100-n, as shown in FIG. Then, it is measured with a resistor (not shown) whether a large number of electronic delay detonator devices 100-1, 100-2, 100-n are properly connected. When measuring the resistance value at the input of the power cable connected to the connector 580, the resistance value is measured in view of the line resistance value. If the measured resistance value is within the threshold range, it is determined that the connection of a large number of electronic delay detonator devices 100-1, 100-2, 100-n is normal.

  Then, the user connects the power cable 200 to the connector 580, turns on the number setting switch SW2 534, sets the number of electronic delay detonator devices 100-1, 100-2, 100-n through the encoder switch 538, The resistance value setting switch SW3 536 is turned on, and the line resistance value of the power cable 200 is set through the encoder switch 538.

  The power supply controller 540 is charged to the capacitor C11 564 of the detonator voltage supply unit 560 based on the number of these many electronic delay detonator devices 100-1, 100-2, 100-n and the line resistance value of the power cable 200. Determine the voltage value. That is, if the voltage supplied to the electronic delay detonator device 100 is 24 V, the voltage control unit 540 takes the voltage drop due to the line resistance value and the voltage drop due to the electronic delay detonator device 100 into consideration. The switching element 562 is driven, and the charging voltage of the capacitor C11 564 is adjusted to 27 V, for example.

  When the user presses the blast switch SW1 532 after the charging voltage of the capacitor C11 564 reaches the target value, the voltage control unit 540 outputs a drive signal for turning on the switching element 572. When the switching element 572 is turned on, the energy charged in the capacitor C11 562 of the detonator voltage supply unit 560 passes through the power cable 200 connected to the connector 580, and a plurality of electronic delay detonator devices 100-1, 100-2, 100-n. To be supplied. Therefore, the electronic delay detonator devices 100-1, 100-2, 100-n are delayed by the set time stored in the storage unit 260 of the microcomputer IC1 151 and then ignite the ignition element 190.

  The protection scope of the present invention should be construed according to the claims. In addition, a person having ordinary knowledge in the technical field to which the present invention pertains can make various modifications and variations without departing from the essential characteristics of the present invention, and all modifications within the scope equivalent to the present invention can be made. The technical idea should be construed as being included in the scope of the present invention.

                The present invention can be applied to an electronic delay detonator device and an electronic detonator blasting system for blasting a rock mass, and in particular, it is possible to prevent misfire by inspecting the connection of ignition elements before blasting. , Can induce an accurate explosion.

100 electronic delay detonator
120 band pass filter
130 Rectifier
140 Energy charging section
150 hour control section
160 Ignition switching element
170 Ignition output terminal
180,182 Inspection resistance
190 Ignition element
200 Power cable
300 blasting equipment

Claims (9)

In the electronic delay detonator device for igniting the ignition element,
An ignition output terminal connected to the ignition element;
A power input terminal for receiving an input of power supplied from an external device;
An energy charging unit for charging energy from a power source supplied to the power input terminal;
A time control unit that delays a predetermined time after the energy charged in the energy charging unit reaches a predetermined voltage value, and outputs a trigger signal;
An ignition switching element for supplying the ignition element with energy charged in the energy charging unit in response to the trigger signal;
Including two resistors each connecting the line of the power input terminal and the line of the ignition output terminal,
Electronic delay detonator. The time control unit includes: a programmable microcomputer; and a voltage distribution circuit that distributes energy charged in the energy charging unit to a power supply terminal of the microcomputer to provide a constant voltage. Item 2. The electronic delay detonator according to Item 1. The power source supplied from the external device is a power source having a predetermined frequency, and includes a band-pass filter for allowing the power source having the predetermined frequency to pass between the power input terminal and the energy charging unit. 3. The electronic delay detonator device according to claim 1 or 2 , characterized in that 3. The electronic delay detonator device according to claim 1, further comprising a rectifying unit for rectifying the power supplied from the external device. In a blast detonator system having an electronic delay detonator device for igniting an ignition element and a blast device for supplying power to the electronic delay detonator device through a power cable,
The electronic delay detonator device is supplied to an ignition output terminal connected to the ignition element, a power input terminal for receiving an input of power supplied from the blasting device through the power cable, and the power input terminal. An energy charging unit for charging energy from a power source; after the energy charged in the energy charging unit has reached a predetermined voltage value, a time control unit that delays a predetermined time and outputs a trigger signal; and An ignition switching element for supplying energy charged in the energy charging unit to the ignition element in response to a trigger signal; and two resistors respectively connecting the line of the power input terminal and the ignition output terminal. Including
The blasting device is supplied to the electronic delay detonator device based on the number of detonator power supply units that supply power to the electronic delay detonator device through the power cable and the electronic delay detonator device connected thereto. A voltage control unit that controls the detonator power supply unit so as to adjust an output voltage of the power source.
Electronic detonator blasting system. In consideration of the line resistance value of the power cable, the voltage control unit controls the detonator power supply unit so as to adjust the output voltage of the power supplied to the electronic delay detonator device, 6. The electronic detonator blasting system according to claim 5 . The blasting apparatus is characterized and connectors for connecting the power cable, and a blasting switching unit which is driven by the operation of the blasting switch between said voltage control unit connector, further comprising a claim 5 Or the electronic detonator blasting system of 6 . 8. The electronic detonator blast according to claim 7 , wherein the blasting device further includes an input unit for setting a number of the electronic delay detonator devices connected and a line resistance value of the power cable. system. The time control unit, according to claim 7, characterized in that it comprises a programmable microcomputer, and a voltage divider circuit to provide to distribute the energy charged in the energy charging unit to a power supply terminal of the microcomputer Electronic detonator blasting system.

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