KR100652905B1 - Electronic safe and arming device for in-line system - Google Patents

Abstract

The present invention relates to an alignment type electronic safety loading device, and the mechanical safety loading device according to the conventional unaligned method ensures the safekeeping or safety of the warhead, but the mechanical operation of the energy cutoff device requires the operation reliability of the warhead. There was a problem of deterioration. In view of the above problems, the present invention provides a circuit isolation unit that receives a plurality of independent load signals and a load release signal and electrically isolates and outputs a predetermined size or more, and a load signal and a load release signal electrically isolated from the circuit isolation unit. Is provided with a microcontroller that outputs a load control signal when the signals meet a predetermined condition, and when the load control signal of the microcontroller is input, the inverted output signal and a non-inverted output signal of opposite phases are outputted. A non-inverting output unit, a high voltage generator for raising an applied voltage when the load control signal, the inverted output signal, and the non-inverted output signal are input, and when the load control signal and an initiator signal having a predetermined pulse width or more are input, It is composed of the detonator for detonating the high voltage output from the high voltage generator. It has the effect of improving safety and operational reliability.

Description

ELECTRONIC SAFE AND ARMING DEVICE FOR IN-LINE SYSTEM

1 is a block diagram of a safety loading device according to the present invention.

2 is a circuit diagram of a high voltage generator of the safety loading apparatus according to the present invention.

3 is a circuit diagram of the detonator of the safety loading apparatus according to the present invention.

4 is an input and output waveform diagram of each component of the safety loading apparatus according to the present invention.

** Description of the symbols for the main parts of the drawings **

10: circuit isolation 20: microcontroller

30: inverted / non-inverted pulse output unit 40: high voltage generation unit

41: transformer first driver 42: transformer second driver

43: transformer third driver 44: transformer fourth driver

45: transformer fifth driver 46: transformer

47: quadruple boost unit 50: detonator

51: detonation trigger portion 52: detonation tube operating portion

53: charge voltage check unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alignment type electronic safety loader for improving the operational reliability of guided warheads. Particularly, when a loaded signal satisfies a predetermined condition, a high voltage is generated and charged in the initiator capacitor, and then a signal of a predetermined magnitude or more is generated. When inputted, the energy charged in the detonating capacitor is applied to the Exploding Foil Initiator (EFI) or the Exploding Bridge Wire (EBW). It is about.

When a shell or guided missile is fired and detects the target approaching the flight, the shell or guided missile is detonated at an appropriate distance, and guided warheads are normally placed in the order of reaction from sensitive gunpowder to progressively lesser gunpowder. Explode sequentially according to the deployed explosion series. First, when the detonator tube is operated by the detonation signal, the lead pipe and the gunpowder are sequentially operated by the detonation force of the detonator tube, and thus the warhead is operated by the detonation force.

In other words, by operating the detonator tube, which causes the initial process of the explosive chain, to ignite the peony of the explosive device to explode. When the first explosive is detonated, it then detonates the next explosive and finally ignites the bomb's peony.

In this case, the use of a low-energy detonator requires the control of the explosion series to maintain the safety of guided warheads. For this purpose, reliable safety loading devices must be used. All detonators should have three functions: safety, sensitivity, and explosion. In the safety drawing, detonators should be designed so that they are not operated outside of the time required by the user, thus storing, loading, shipping, handling and firing. You must be safe in the city.

For this purpose, the current safety loader is used to secure the warhead by mechanically isolating the explosion series by placing an energy isolating device in the explosion system when storing or transporting the warhead, and releasing the energy blocking device when the loading point of the missile is reached. Out of line is used to align the explosion series.

However, the mechanical safety loading apparatus according to the conventional non-aligning method as described above has a problem that the storage or safety of the warhead is surely guaranteed, but the mechanical operation of the energy cutoff device requires the operation reliability of the warhead.

Therefore, the present invention was devised in view of the above problems, using the EFI or EBW operating only at high voltage without using a mechanical shut-off device in the explosion series as a detonator tube safety as well as the safety of the warhead operation reliability of the warhead An object of the present invention is to provide an electronic safety device with an alignment that can be improved.

In order to achieve the above object, the present invention provides a circuit isolation unit that receives a plurality of independent load signals and a load release signal and electrically isolates and outputs a predetermined size or more, and a load electrically isolated from the circuit isolation unit. A microcontroller that receives a signal and a charge release signal and outputs a load control signal when the signals meet predetermined conditions, and an inverted output signal and a non-inverted output signal having opposite phases when the load control signal of the microcontroller is input. An inverting / non-inverting output unit for outputting a high voltage; When the signal is input consists of a detonator for detonating the high voltage output from the high voltage generator The features.
Here, the high voltage generation unit, and a transformer for increasing the voltage applied from the outside; A transformer driver including a transistor and a FET driver circuit for receiving current from the charge control signal, the inverted output signal, the non-inverted output signal, and the charge 2 signal to supply a current to the primary coil of the transformer; It is connected to the transformer secondary side coil and comprises a plurality of diodes and capacitors to include a boost voltage for increasing the secondary side voltage.
The transformer driver may include: a transformer first driver and a transformer second driver configured to operate by receiving a charge control signal of the microcontroller; A transformer third driving unit configured to receive and operate the charging 2 signal electrically isolated by the circuit isolation unit; The transformer 4 driver and the transformer 5 driver are configured to receive and operate the inverted output signal and the non-inverted output signal of the inverted / non-inverted pulse output unit, respectively.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a safety loading apparatus according to the present invention, as shown therein, the circuit isolation unit 10 and the circuit isolation unit for electrically separating and inputting three load signals and outputting only signals having a predetermined size or more. And a microcontroller 20 for determining whether the load signal is input while satisfying a predetermined condition or whether a load release signal is input, and outputting a load control signal accordingly, and some output terminals of the microcontroller 20; An inverted / non-inverted pulse output unit 30 for outputting an inverted output signal and a non-inverted output signal of pulses whose phases are opposite to each other only when a load control signal is input, and the microcontroller 20 and the inverted one; And a high voltage generator 40 for generating a high voltage when a predetermined condition is received by receiving the output signal of the non-inverted pulse output unit 30, and the high voltage generator 40 It is composed of a detonator 50 for operating the warhead by instantaneously transferring the energy of the detonation capacitor charged by the high voltage input to the EFI or EBW when a detonation signal having a pulse width of more than a predetermined magnitude is connected from the outside.

The circuit isolation unit 10 receives a load 1 signal, a load 2 signal, a load 3 signal, and a load release signal and uses only a buffer and an opto coupler to load only a load signal and a load release signal of a predetermined size or more. It is electrically separated and transferred to the microcontroller 20.

The microcontroller 20 has four input terminals of P0.0, P0.1, P0.2, and INT, and five of P1.0, P1.1, P1.2, P1.3, and P1.6. It has an output terminal. The load 1 signal, the load 2 signal, the load 3 signal and the unload signal, which have passed through the circuit isolation unit 10, are respectively supplied to the microcontroller 20 through input terminals of P0.0, P0.1, P0.2, and INT. Is delivered to.

When the power is applied, the microcontroller 20 checks the initial state of the input terminals (P0.0, P0.1, P0.2, INT) and checks the internal program. Output the signal and check for the presence of input signal flowing into each input terminal.

At this time, when the load 1 signal is input, a high signal is output to P1.0. When the load 2 and 3 signals are input in accordance with a predetermined condition, a high signal is output to P1.2 and P1.6, respectively. P1.1 outputs a 41kHz pulse signal. On the other hand, if the load 1, 2, 3 signal does not meet a predetermined condition, the signal and the pulse signal having the above logic value is not output.

The inverted / non-inverted pulse output unit 30 is connected to the output terminals P1.1 and P1.6 of the microcontroller 20 to receive a signal therethrough. The pulse signal output to P1.1 is 41 kHz and P1. A high signal at .6 produces an inverted, non-inverted output signal of 41 kHz with phases opposite to each other. However, when the output terminals P1.1 and P1.6 have an abnormal value, both the inverted and non-inverted output signals of the inverted / non-inverted pulse output unit 30 are made high.

The high voltage generator 40 is provided with a load 2 signal of the circuit isolation unit 10, an inverted and non-inverted output signal of the inverted / non-inverted pulse output unit 30, and an output of P1.0 of the microcontroller 20. The signal is transmitted, and the operation thereof is described below with reference to a circuit diagram of the high voltage generator 40 shown in FIG. 2.

The high voltage generator 40 is provided with a transformer 1 driver 41 and a second driver 42 receiving the output signal of P1.0 of the microcontroller 20, and a load 2 output from the circuit isolation unit 10. A third driver 43 for receiving a signal, a fourth driver 44 and a fifth driver 45 for receiving an inverted output signal and a non-inverted output signal from the inverted / non-inverted pulse output unit 30, respectively; The primary coil is composed of a transformer 46 connected to the transformer driving units 41 to 45, and a quadruple boost voltage unit 47 connected to the secondary coil of the transformer 46 to increase the voltage.

In addition, the first, second, fourth, and fifth driving parts 41, 42, 44, and 45 of the transformers respectively operate N-channel field effect transistors (FETs) Q1, Q2, Q4, and Q5. The third drive unit 43 is composed of a FET driving circuit, a FET Q3 of the P-channel, a diode D1, and a supersaturated reactor L1.

The input terminal of the FET driving circuit of each of the transformer first and second driving units 41 and 42 is connected to P1.0 of the microcontroller 20, and the driving signal of the FET driving circuit is input to the gate terminals of the FETs Q1 and Q2. do. The source terminals of the FETs Q1 and Q2 are grounded and the drain terminals are connected to the source terminals of the FETs Q4 and Q5 of the transformer fourth and fifth drivers 44 and 45, respectively.

The FET driving circuits of the transformer fourth and fifth driving units 44 and 45 receive the inverted output signal and the non-inverted output signal of the inverted / non-inverted pulse output unit 30, respectively, and drive signals to the gate terminals of the FETs Q4 and Q5. To pass. The drains of the FETs Q4 and Q5 are connected to both ends of the primary coil of the transformer 46, respectively.

The FET driving circuit of the transformer third driving unit 43 receives the loading 2 signal output through the circuit isolation unit 10, and the output terminal of the FET driving circuit is connected to the gate terminal of the FET Q3. The source terminal of the FET Q3 is connected to the power supply V _cc , and the drain terminal is connected to the center point of the transformer primary side coil via a diode D1 and a supersaturated reactor L1.

The center point of the transformer 46 primary coil is a transformer third driver 43, one terminal of the transformer fourth driver 44, the other terminal of the transformer 46 is connected to the driver of the transformer fifth driver 45, a transformer fourth The driver 44 and the transformer fifth driver 45 are connected to the transformer first driver 41 and the transformer second driver 42, respectively. On the other hand, the secondary coil of the transformer 46 is connected to the quadruple voltage booster 47, and the output terminal of the quadruple voltage booster 47 composed of a diode and a condenser is connected to the detonator 50.

The operation of the high voltage generator 40 configured as described above will be described in detail.

Here, when the load 2 signal, the inverted output signal, the non-inverted output signal corresponding to the conditions for operating the high voltage generator 40 is input, the high signal is input through the P1.0 of the microcontroller 20 That is, it is assumed that a signal for operating the warhead is input.

First, the FET driving circuits of the transformers 1 to 5 driving units 41 to 45 amplify an input signal.

When the first and second drivers 41 and 42 of the microcontroller 20 input a high signal to P1.0, they are amplified by the FET driving circuit to operate the FETs Q1 and Q2, and the transformer third driver 43 is operated. When the load 2 signal is input, the amplification is performed by the FET driving circuit to operate the FET Q3. At this time, the diode D1 and the super saturation reactor L1 of the transformer third driver 43 serve to control the flow of a very large pulsed current during the initial operation of the transformer 46.

In addition, the transformer fourth and fifth driving units 44 and 45 respectively amplify the inverted and non-inverted output signals by the FET driving circuit to operate the FETs Q4 and Q5.

As the transformers 1 to 5 driving units 41 to 45 operate, a current flows into the transformer primary coil from FET Q3 to Q4 by the inverted output signal of the inverted / non-inverted pulse output unit 30 during a half cycle of 41 kHz. And during the other half cycle, current flows to the other primary coil of transformer 46 from FET Q3 to Q5 by non-inverting output signal.

Thus, as an example, if a voltage of 19 V is applied to the source terminal of the FET Q3 of the transformer third driver 43 and the coil turns ratio of the transformer 46 is 16: 560, the voltage of the voltage applied from the secondary side of the transformer 46 is 35. A voltage of about 660 V, which is equivalent to twice the voltage, can be obtained.

The voltage on the secondary side of the transformer 46 obtained as described above is passed through the quadrupled voltage section 47 composed of a diode and a capacitor to transfer the quadrupled voltage to the detonator 50.

As shown in FIG. 3, the circuit configuration of the initiator 50 includes an initiator trigger 51 including a Schmitt Trigger circuit U1, a resistor 1 (R1), and a capacitor 1 (C1). By the N-channel FET Q6 connected to the output terminal of the Schmitt trigger circuit U1 and operating in accordance with the output, the initiator capacitor C3 charged by the input high contact voltage, and the initiator capacitor C3. Resistor 2 (R2) and resistor 3 (R3) for distributing the charged voltage, primary capacitor C2 for charging at a voltage reduced by resistors 2 and 3 (R2, R3), and primary coil When the primary capacitor C2 is discharged, the high voltage charged in the detonation capacitor C3 is connected to the pulse transformer T for generating a high voltage pulse to the secondary coil and the secondary coil of the pulse transformer T. Detonator tube operating portion 52 including a spark gap switch (SW) to transmit to the voltage and the voltage charged in the detonation capacitor (C3) to reduce Charging voltage check unit 53 including resistor 4 (R4) and resistor 5 (R5).

First, the Schmitt trigger circuit U1 of the trigger trigger unit 51 is activated by the output signal of P1.2 of the microcontroller 20, and the resistor 1 (R1) and the capacitor 1 (C1) have a predetermined pulse width or more. Only when the detonation signal is applied, the Schmitt trigger circuit U1 outputs the trigger signal.

On the other hand, by using the high voltage output from the high voltage generator 40 to charge the initiator capacitor (C3) of the actuating tube 52, the primary side capacitor (A) with the voltage divided by the resistors 2, 3 (R2, R3). Charge C2). At this time, when a trigger signal is input to the FET Q6 gate of the initiator tube operation unit 52 connected to the output terminal of the Schmitt trigger circuit U1, the FET Q6 operates to supply the voltage charged in the primary capacitor C2. The spark gap switch (SW) is activated by discharging through ground connected to the source of FET Q6 and outputting several thousand volts of pulses to the secondary side of the pulse transformer (T). When the spark gap switch SW is operated, the high voltage charged in the detonation capacitor C3 is instantaneously transferred to the metal thin film explosion-type detonator EFI to operate.

On the other hand, the charge voltage check unit 53 is composed of a resistor 4 (R4), a resistor 5 (R5) connecting the both ends of the initiator capacitor (C3), the resistance value of the resistor 4 (R4) and resistor 5 (R5) The safety loading device according to the present invention can be tested by reducing and outputting the voltage of the initiator capacitor C3 with a ratio of 100 to 1.

Although the detonator 50 of FIG. 3 uses a metal thin film explosion-type detonator (EFI), it can be implemented by using a metal wire detonation detonator (EBW) that operates only at a high voltage as in the EFI.

4 is an input / output waveform diagram of each component of the safety loading apparatus according to the present invention. As shown in FIG. 4, the loading 1 signal (a), the loading 2 signal (b), and the loading 3 signal (c) are high, low, As described above, the inverted output signal e and the non-inverted output signal f of the inverted / non-inverted pulse output unit 30 output a normal output, that is, a pulse having an opposite phase of 41 kHz. In this case, since the high voltage generated by the high voltage generator 40 is charged in the initiator capacitor C3, the initiator capacitor charging voltage g gradually increases to reach a saturation state.

If the load release signal d is generated even when the load signals a, b, and c are normally input, the inverted output signal e and the non-inverted output signal f of the inverted / non-inverted pulse output unit 30 are generated. ) And the P1.0 output signal of the microcontroller 20 do not meet the conditions necessary for the operation of the high voltage generator 40, so that the high voltage can not be provided to the initiator capacitor C3. Falls sharply

However, when the charge release signal d disappears, the inverted output signal e and the non-inverted output signal f again exhibit normal pulses, and the charging voltage h of the initiator capacitor C3 increases to maintain a constant state. . At this time, when the initiator signal g having a pulse of a predetermined width or more is input through the initiator 50, the initiator capacitor charging voltage h drops sharply, and the voltage is transferred to the EFI to operate the EFI.

As described in detail above, the present invention uses a metal thin film explosive detonator (EFI) or a metal wire explosive detonator (EBW) that operates only at high voltages of thousands of volts without using a mechanical blocking device for the explosion series. It is used to construct a circuit that transfers the high voltage charged in the initiator capacitor to EFI or EBW only when three load signals are input under predetermined conditions and a detonation signal having a predetermined pulse width is input without the charge release signal. Safety and operational reliability have the effect of improving.

Claims (13)

A circuit isolation unit which receives a plurality of independent load signals and a load release signal and electrically isolates and outputs a predetermined load or more; A microcontroller configured to receive a charge signal and a charge release signal electrically isolated from the circuit isolation unit and output a load control signal when the signals meet predetermined conditions; When the charge control signal is input from the microcontroller, an inverted output signal and a non-inverted output signal of opposite phases are output. When the charge control signal is received from the microcontroller, the inverted output signal and the non-inverted output signal are output high. An inverting / non-inverting output unit; A high voltage generator for raising and applying an applied voltage when receiving the charge control signal, the inverted output signal, the non-inverted output signal, and the load 2 signal independent of the microcontroller; And a detonator for detonating the high voltage output from the high voltage generator when the charge control signal and the detonator signal having a predetermined pulse width or more are input. Here, the high voltage generation unit, and a transformer for increasing the voltage applied from the outside; A transformer driver including a transistor and a FET driver circuit for receiving current from the charge control signal, the inverted output signal, the non-inverted output signal, and the charge 2 signal to supply a current to the primary coil of the transformer; A voltage booster connected to the transformer secondary coil and configured with a plurality of diodes and a capacitor to increase the secondary voltage; The transformer driver may include: a transformer first driver and a transformer second driver configured to operate by receiving a load control signal of the microcontroller; A transformer third driving unit electrically isolated by the circuit isolation unit, the transformer third driving unit configured to receive and operate a load 2 signal applied independently of the microcontroller; And a transformer fourth driver and a transformer fifth driver for receiving the inverted output signal and the non-inverted output signal of the inverted / non-inverted pulse output unit, respectively. The circuit isolation device of claim 1, wherein the circuit isolation unit comprises: An input terminal capable of receiving a load 1 signal, a load 2 signal, a load 3 signal, and a load release signal; It is composed of four output stages corresponding to each input stage and outputting electrically isolated load 1 signal, load 2 signal, load 3 signal and unloading signal, Wherein the four output terminals of the circuit isolation unit are configured to be connected to input terminals of the microcontroller, respectively. The method of claim 2, wherein the microcontroller is: An electronic safety loader in alignment, characterized in that it is configured to output a load control signal only when a load 1, 2, 3 signal is input and a load release signal is not input. The method of claim 1, wherein the microcontroller is: Output terminals P1.1 and P1.6 for outputting a charge control signal to an input terminal of the inverted / non-inverted pulse output unit; An output terminal P1.0 for outputting a charge control signal for operating the high voltage generator; And an output terminal P1.3 for outputting a load control signal for activating the initiator, and an output terminal P1.3 for outputting a normal signal when there is no abnormality by checking an initial state and an internal program state of the input terminal. Alignment type electronic safety device. delete delete The method of claim 1, The first, second, fourth, and fifth driving parts of the transformer include: an N-channel transistor and a FET driving circuit for operating the transistor; And the transformer third driving unit comprises a P-channel transistor, an FET driving circuit for operating the same, a diode connected to a drain of the P-channel transistor, and a supersaturated inductor. The method of claim 1, The transformer fourth driving unit is one terminal of the transformer primary side coil, The transformer first driving unit is a transformer fourth driving unit, The fifth driving unit of the transformer to the other terminal of the transformer primary side coil, The transformer second driver is in the transformer fifth driver, And the third driving part of the transformer is configured to be connected to the center points of the transformer primary side coils, respectively. The method of claim 1, wherein the detonator is: An initiator trigger unit for receiving the charge control signal and the initiator signal and outputting a trigger signal only for an initiator signal having a predetermined pulse width or more; And a trigger tube operating unit operating by the trigger signal to detonate the high voltage of the high voltage generating unit. 10. The method of claim 9, wherein the detonator tube actuating unit: Detonation capacitor to charge the input high voltage, A primary capacitor for charging the high voltage stepped down by a voltage distribution circuit; A transistor operated by the trigger signal and connected to one terminal of the primary capacitor; A pulse transformer having a primary coil connected to the other terminal of the primary capacitor, A switch connected to the secondary coil of the pulse transformer and operated by a voltage transmitted through the pulse transformer; An alignment type safety electronic device, characterized in that configured to be connected in parallel with the detonation capacitor and operates when the switch is operated by receiving the voltage charged in the detonation capacitor. The method of claim 10, And a charge voltage checker configured to reduce and output a voltage charged in the detonation capacitor by using two resistors having different resistance values. The method of claim 10, wherein the transistor And an electric trigger device configured to operate when the trigger signal is input to discharge the voltage charged in the detonation capacitor. The method of claim 10, wherein the switch And an on-load type electronic safety loader, configured to switch to an on state when the transformer secondary voltage is more than a predetermined value.

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