CN113009252A - Aircraft initiating explosive device detonation control and monitoring circuit - Google Patents
Aircraft initiating explosive device detonation control and monitoring circuit Download PDFInfo
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- CN113009252A CN113009252A CN202110208706.7A CN202110208706A CN113009252A CN 113009252 A CN113009252 A CN 113009252A CN 202110208706 A CN202110208706 A CN 202110208706A CN 113009252 A CN113009252 A CN 113009252A
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- 239000002360 explosive Substances 0.000 title claims abstract description 75
- 230000000977 initiatory effect Effects 0.000 title claims abstract description 75
- 238000005474 detonation Methods 0.000 title claims abstract description 48
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000005070 sampling Methods 0.000 claims abstract description 54
- 230000000694 effects Effects 0.000 claims abstract description 8
- 239000003990 capacitor Substances 0.000 claims description 42
- 230000003750 conditioning effect Effects 0.000 claims description 27
- 238000001914 filtration Methods 0.000 claims description 27
- 230000001143 conditioned effect Effects 0.000 claims description 9
- 238000004880 explosion Methods 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention discloses an aircraft initiating explosive device detonation control and monitoring circuit, which comprises an aircraft initiating explosive device detonation control circuit and a monitoring circuit, wherein the monitoring circuit comprises: the voltage sampling module and the current sampling module are used for monitoring the execution effect of the feedback detonation instruction; the aircraft initiating explosive device detonation control circuit realizes the detonation operation of the initiating explosive device bridge wire through the control of a multi-stage switch. The invention can accurately and timely obtain the information of the detonation result, solves the problem that the process changes such as lack of result judgment signals or single third-party signals are not mastered, and perfects the comprehensive information link of the initiating explosive control, the detonation action and the result judgment.
Description
Technical Field
The invention relates to the field of aircraft. In particular to an aircraft initiating explosive device detonation control and monitoring circuit.
Background
Whether the initiating explosive device of the aircraft is normally ignited or not is a key link related to the whole test and is often closely related to the success or failure of the test. The effect of initiating explosive device detonation can be divided into three cases.
One is that the sensor is usually characterized by some kind of third party signal except the detonation control circuit and the initiating explosive device, such as the change of parameters like pressure sensor, vibration sensor, impact sensor, mechanical switch state or image. The third-party signals are indirect information of initiating explosive devices, but when the parameters drift and the signal link is too long, the effect cannot be accurately reflected in time or the initiating explosive devices fail to work, the test may be interrupted or failed.
And secondly, a voltage sampling module is arranged at an output port of the ignition control circuit to confirm whether the ignition action is sent to the controlled object or not, so that the ignition effect of the initiating explosive device cannot be completely represented.
And thirdly, complete open loop control.
The first two conditions are common, the important degree and the key attribute of the initiating explosive device on the aircraft are considered, the multi-angle confirmation of the detonation execution effect of the initiating explosive device is very necessary, particularly the direct effect which can be immediately judged after the initiating explosive device is detonated is increased, and the accuracy and the timeliness of monitoring the detonation state of the initiating explosive device in the prior art are lower.
Disclosure of Invention
In order to solve at least one of the above problems, an object of the present invention is to provide an aircraft initiating explosive device detonation control and monitoring circuit, comprising: control circuit and monitoring circuit for initiating explosive device of aircraft, wherein
The monitoring circuit includes: the voltage sampling module and the current sampling module are used for monitoring the execution effect of the feedback detonation instruction;
the aircraft initiating explosive device detonation control circuit realizes the detonation operation of the initiating explosive device bridge wire through the control of a multi-stage switch.
The aircraft initiating explosive device detonation control circuit comprises an initiating explosive device positive line, an initiating explosive device return line, a positive line switch, a return line switch, a current-limiting resistor and an initiating explosive device bridge wire;
the current-limiting resistor is matched with the initiating explosive device bridge wire, so that the loop current is in the conventional explosion value range of the initiating explosive device;
according to the set combination time sequence of the aircraft, the positive wire switch is controlled to be closed and the return wire switch is controlled to be closed through the multi-level control switch, and an ignition pulse is sent out, so that the initiating explosive device bridge wire completes the ignition action, and an ignition voltage signal and an ignition current signal are generated;
the multistage control switch is also used for controlling the disconnection of the positive line switch and the disconnection of the return line switch.
The voltage sampling module is used for collecting an ignition voltage signal in real time; the current sampling module is used for collecting bridge wire current signals of the initiating explosive device in real time to obtain voltage collecting signals and current collecting signals.
The voltage acquisition module comprises a voltage dividing resistor module, a first signal conditioning module and a first signal filtering module;
the detonation voltage signal generates a voltage signal after voltage division through the voltage division resistance module, the first signal conditioning module conditions the voltage signal after voltage division and outputs the generated signal to the first signal filtering module to generate the voltage acquisition signal;
the voltage-dividing resistor module is composed of a seventh resistor R7, an eighth resistor R8 and a ninth resistor R9, wherein a first end of the seventh resistor R7 is connected with a first end of the initiating explosive device bridge wire and serves as a first signal input end for receiving an electric signal, a second end of the seventh resistor R7 is connected with a first end of a ninth resistor R9 through the eighth resistor R8, and a second end of the ninth resistor R9 is connected with a second end of the initiating explosive device bridge wire.
The first signal conditioning module consists of a first operational amplifier U1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2 and a third capacitor C3 and is used for conditioning the divided voltage signal to generate a conditioning voltage signal;
the connection relationship is as follows:
the first end of the first resistor R1 is connected with the second end of the seventh resistor, the second end is connected with the first end of the third resistor R3, the second end of the third resistor is grounded, the first end of the first capacitor C1 is connected with the first ends of a plurality of third resistors, and the second end is grounded; the second resistor is grounded through a second capacitor C2 and is connected with the inverting input end of the first operational amplifier; the inverting input terminal of the first operational amplifier is connected to the first terminal of the sixth resistor R6 through a fifth resistor R5; the first end of the third resistor is connected with the non-inverting input end of the first operational amplifier U1, the first power supply end of the first operational amplifier is grounded through a third capacitor C3 and receives a power supply signal through a fourth resistor R4, the second power supply end is grounded, and the output end outputs a signal and transmits the signal to the first signal filtering module through a sixth resistor R6;
the first signal filtering module includes: a first clamping diode D1 and a capacitor C4 for voltage stabilization and filtering of the conditioned voltage signal.
The current collection module includes: the current sampling resistor module, the second signal conditioning module and the second signal filtering module; the current sampling resistance module is used for converting an input current signal into a voltage signal;
and the initiating explosive device bridge wire current signal is converted into a voltage signal through the current sampling resistance module and sequentially passes through the second signal conditioning module and the second signal filtering module to output the current collecting signal.
The current sampling resistance module includes: a first current sampling resistor R17 and a second current sampling resistor R18 for converting the current signal into a voltage signal;
the second signal conditioning module comprises a second operational amplifier U2, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, an eleventh capacitor C11, a twelfth capacitor C12, and a thirteenth capacitor C13; for conditioning the voltage signal;
the connection relationship is as follows: a first end of the first current sampling resistor R17 is connected to a second end of the initiating explosive device bridgewire, a second end of the first current sampling resistor R17 is connected to a return switch, the second current sampling resistor R18 is connected in parallel with the first current sampling resistor, a first end of the eleventh resistor is connected to a first end of the second current sampling resistor, a second end of the eleventh resistor is connected to a non-inverting input end of the second operational amplifier, a first end of the twelfth resistor R12 is connected to a second end of the second current sampling resistor, and a second end of the twelfth resistor R12 is connected to an inverting input end of the second operational amplifier; the fifteenth resistor R15 has a first end connected to the inverting input terminal of the second operational amplifier and a second end connected to the output terminal of the second operational amplifier; the twelfth capacitor C12 is connected in parallel with the fifteenth resistor; a first power supply end of the second operational amplifier is connected with the power input through the fourteenth resistor and is grounded through the thirteenth capacitor, and a second power supply end of the second operational amplifier is directly grounded; the output end of the second operational amplifier outputs the conditioned voltage signal, and the conditioned voltage signal is output to the second signal filtering module through a sixteenth resistor.
The second signal filtering module comprises a fourteenth capacitor C14, a second clamping diode D11, and a nineteenth resistor R19;
the connection relationship is as follows: a cathode of the second clamping diode is connected to a second end of the sixteenth resistor, an anode thereof is grounded, the fourteenth capacitor is connected in parallel to the second clamping diode, and the nineteenth resistor is connected in parallel to the second clamping diode.
The invention has the following beneficial effects:
according to the circuit provided by the invention, after the aircraft sends the initiating explosive device detonation instruction, the third-party signal, the detonation voltage signal and the detonation current signal are simultaneously acquired for logic comprehensive judgment, the detonation result information can be accurately and timely obtained, the condition that process changes such as a result judgment signal is lacked or a single third-party signal are not mastered is solved, and a comprehensive information link for initiating explosive device control, detonation action and result judgment is perfected.
Drawings
FIG. 1 illustrates a functional block diagram of an aircraft initiating explosive device detonation control and monitoring circuit, according to an embodiment of the invention;
FIG. 2 is a circuit diagram of a voltage sampling module in an aircraft initiating explosive device detonation control and monitoring circuit according to an embodiment of the invention;
FIG. 3 is a circuit diagram of a current sampling module in an aircraft initiating explosive device detonation control and monitoring circuit according to an embodiment of the invention;
fig. 4 is a logic combination block diagram of an aircraft initiating explosive device detonation control and monitoring circuit according to an embodiment of the invention.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
An embodiment of the present invention provides an aircraft initiating explosive device detonation control and monitoring circuit, as shown in fig. 1, the circuit includes: the aircraft initiating explosive device detonation control circuit comprises an aircraft initiating explosive device detonation control circuit and a monitoring circuit, wherein the monitoring circuit comprises a voltage sampling module and a current sampling module.
The aircraft initiating explosive device detonation control circuit comprises an initiating explosive device positive line 1, an initiating explosive device return line 2, a positive line switch 3, a return line switch 4, a current-limiting resistor 5 and an initiating explosive device bridge wire 6; the current-limiting resistor 5 is matched with the initiating explosive device bridge wire 6, so that the loop current is in a conventional initiating explosive device detonation value range, the positive line switch 3 and the return line switch 4 are controlled to be closed through the multi-level control switch according to a set combination time sequence of the aircraft, and an detonation pulse is sent out, so that the initiating explosive device bridge wire 6 completes detonation action, and an detonation voltage signal and initiating explosive detonation current are generated; and then the positive line switch 3 is controlled to be switched off, the return line switch 4 is controlled to be switched off, and the detonation control process is finished. In the process of ignition control, the voltage sampling module 7 collects the real-time ignition voltage and duration, and the current sampling module 8 collects the real-time initiating explosive device bridge wire current and duration to obtain a voltage collecting signal and a current collecting signal. The voltage acquisition module can be connected in parallel at any two points before the positive line switch and the return line switch.
As shown in fig. 2, the voltage collecting module includes a voltage dividing resistor module, a first signal conditioning module and a first signal filtering module;
the detonation voltage signal generates a voltage signal after voltage division through the voltage division resistance module, the first signal conditioning module conditions the voltage signal after voltage division and outputs the generated signal to the first signal filtering module to generate the voltage acquisition signal;
the voltage-dividing resistor module is composed of a seventh resistor R7, an eighth resistor R8 and a ninth resistor R9, wherein a first end of the seventh resistor R7 is connected with a first end of the initiating explosive device bridge wire and serves as a first signal input end for receiving an electric signal, a second end of the seventh resistor R7 is connected with a first end of a ninth resistor R9 through the eighth resistor R8, and a second end of the ninth resistor R9 is connected with a second end of the initiating explosive device bridge wire.
The first signal conditioning module consists of a first operational amplifier U1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2 and a third capacitor C3 and is used for conditioning the divided voltage signal to generate a conditioning voltage signal;
the connection relationship is as follows:
the first end of the first resistor R1 is connected with the second end of the seventh resistor, the second end is connected with the first end of the third resistor R3, the second end of the third resistor is grounded, the first end of the first capacitor C1 is connected with the first ends of a plurality of third resistors, and the second end is grounded; the second resistor is grounded through a second capacitor C2 and is connected with the inverting input end of the first operational amplifier; the inverting input terminal of the first operational amplifier is connected to the first terminal of the sixth resistor R6 through a fifth resistor R5; the first end of the third resistor is connected with the non-inverting input end of the first operational amplifier U1, the first power supply end of the first operational amplifier is grounded through a third capacitor C3 and receives a power supply signal through a fourth resistor R4, the second power supply end is grounded, and the output end outputs a signal and transmits the signal to the first signal filtering module through a sixth resistor R6;
the first signal filtering module includes: a first clamping diode D1 and a capacitor C4 for filtering and stabilizing the conditioned voltage signal.
As shown in fig. 3, the current sampling module includes a current sampling resistor module, a second signal conditioning module, and a second signal filtering module; the current sampling resistance module is used for converting an input current signal into a voltage signal;
and the initiating explosive device bridge wire current signal is converted into a voltage signal through the current sampling resistance module and sequentially passes through the second signal conditioning module and the second signal filtering module to output the current collecting signal.
The current sampling resistance module includes: a first current sampling resistor R17 and a second current sampling resistor R18 for converting the current signal into a voltage signal;
the second signal conditioning module comprises a second operational amplifier U2, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, an eleventh capacitor C11, a twelfth capacitor C12, and a thirteenth capacitor C13; for conditioning the voltage signal;
the connection relationship is as follows: a first end of the first current sampling resistor R17 is connected to a second end of the initiating explosive device bridgewire, a second end of the first current sampling resistor R17 is connected to a return switch, the second current sampling resistor R18 is connected in parallel with the first current sampling resistor, a first end of the eleventh resistor is connected to a first end of the second current sampling resistor, a second end of the eleventh resistor is connected to a non-inverting input end of the second operational amplifier, a first end of the twelfth resistor R12 is connected to a second end of the second current sampling resistor, and a second end of the twelfth resistor R12 is connected to an inverting input end of the second operational amplifier; the fifteenth resistor R15 has a first end connected to the inverting input terminal of the second operational amplifier and a second end connected to the output terminal of the second operational amplifier; the twelfth capacitor C12 is connected in parallel with the fifteenth resistor; a first power supply end of the second operational amplifier is connected with the power input through the fourteenth resistor and is grounded through the thirteenth capacitor, and a second power supply end of the second operational amplifier is directly grounded; the output end of the second operational amplifier outputs the conditioned voltage signal, and the conditioned voltage signal is output to the second signal filtering module through a sixteenth resistor.
The second signal filtering module comprises a fourteenth capacitor C14, a second clamping diode D11, and a nineteenth resistor R19;
the connection relationship is as follows: a cathode of the second clamping diode is connected to a second end of the sixteenth resistor, an anode thereof is grounded, the fourteenth capacitor is connected in parallel to the second clamping diode, and the nineteenth resistor is connected in parallel to the second clamping diode.
As shown in fig. 4, the current collecting signal, the voltage collecting signal and the third-party collecting signal (such as a sound signal and a vibration signal) are merged to the a/D conversion module 12 in the form of a voltage signal, and are sent to the logic combination module 13 after analog-to-digital signal conversion, the logic combination module sets a result according to the physical characteristics of the initiating explosive device to determine a logic relationship, the initiating explosive device normally explodes, all three signals should be normally displayed, and when any one or two of the three signals are abnormal, the initiating explosive device possibly explodes abnormally, and basically, a fault point can be directly determined.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (8)
1. An aircraft initiating explosive device detonation control and monitoring circuit is characterized in that,
the circuit comprises an aircraft initiating explosive device detonation control circuit and a monitoring circuit, wherein
The monitoring circuit includes: the voltage sampling module and the current sampling module are used for monitoring the execution effect of the feedback detonation instruction;
the aircraft initiating explosive device detonation control circuit realizes the detonation operation of the initiating explosive device bridge wire through the control of a multi-stage switch.
2. The circuit of claim 1,
the aircraft initiating explosive device detonation control circuit comprises an initiating explosive device positive line, an initiating explosive device return line, a positive line switch, a return line switch, a current-limiting resistor and an initiating explosive device bridge wire;
the current-limiting resistor is matched with the initiating explosive device bridge wire, so that the loop current is in the conventional explosion value range of the initiating explosive device;
according to the set combination time sequence of the aircraft, the multistage control switch controls the positive wire switch to be closed and the return wire switch to be closed, so that an ignition pulse is emitted, the initiating explosive device bridge wire completes the ignition action, and an ignition voltage signal and an ignition current signal are generated;
the multistage control switch is also used for controlling the disconnection of the positive line switch (3) and the disconnection of the return line switch (4).
3. The circuit of claim 1,
the voltage sampling module is used for collecting the detonation voltage signal in real time; the current sampling module is used for collecting bridge wire current signals of the initiating explosive device in real time to obtain voltage collecting signals and current collecting signals.
4. The circuit of claim 1,
the voltage acquisition module comprises a voltage dividing resistor module, a first signal conditioning module and a first signal filtering module;
the detonation voltage signal generates a voltage signal after voltage division through the voltage division resistance module, the first signal conditioning module conditions the voltage signal after voltage division and outputs the generated signal to the first signal filtering module to generate the voltage acquisition signal;
the voltage-dividing resistor module is composed of a seventh resistor R7, an eighth resistor R8 and a ninth resistor R9, wherein a first end of the seventh resistor R7 is connected with a first end of the initiating explosive device bridge wire and serves as a first signal input end for receiving an electric signal, a second end of the seventh resistor R7 is connected with a first end of a ninth resistor R9 through the eighth resistor R8, and a second end of the ninth resistor R9 is connected with a second end of the initiating explosive device bridge wire.
5. The circuit of claim 4,
the first signal conditioning module consists of a first operational amplifier U1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2 and a third capacitor C3 and is used for conditioning the divided voltage signal to generate a conditioning voltage signal;
the connection relationship is as follows:
the first end of the first resistor R1 is connected with the second end of the seventh resistor, the second end is connected with the first end of the third resistor R3, the second end of the third resistor is grounded, the first end of the first capacitor C1 is connected with the first ends of a plurality of third resistors, and the second end is grounded; the second resistor is grounded through a second capacitor C2 and is connected with the inverting input end of the first operational amplifier; the inverting input terminal of the first operational amplifier is connected to the first terminal of the sixth resistor R6 through a fifth resistor R5; the first end of the third resistor is connected with the non-inverting input end of the first operational amplifier U1, the first power supply end of the first operational amplifier is grounded through a third capacitor C3 and receives a power supply signal through a fourth resistor R4, the second power supply end is grounded, and the output end outputs a signal and transmits the signal to the first signal filtering module through a sixth resistor R6;
the first signal filtering module includes: a first clamping diode D1 and a capacitor C4 for voltage stabilization and filtering of the conditioned voltage signal.
6. The circuit of claim 1,
the current collection module includes: the current sampling resistor module, the second signal conditioning module and the second signal filtering module; the current sampling resistance module is used for converting an input current signal into a voltage signal;
and the initiating explosive device bridge wire current signal is converted into a voltage signal through the current sampling resistance module and sequentially passes through the second signal conditioning module and the second signal filtering module to output the current collecting signal.
7. The circuit of claim 6,
the current sampling resistance module includes: a first current sampling resistor R17 and a second current sampling resistor R18 for converting the current signal into a voltage signal;
the second signal conditioning module comprises a second operational amplifier U2, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, an eleventh capacitor C11, a twelfth capacitor C12, and a thirteenth capacitor C13; for conditioning the voltage signal;
the connection relationship is as follows: a first end of the first current sampling resistor R17 is connected to a second end of the initiating explosive device bridgewire, a second end of the first current sampling resistor R17 is connected to a return switch, the second current sampling resistor R18 is connected in parallel with the first current sampling resistor, a first end of the eleventh resistor is connected to a first end of the second current sampling resistor, a second end of the eleventh resistor is connected to a non-inverting input end of the second operational amplifier, a first end of the twelfth resistor R12 is connected to a second end of the second current sampling resistor, and a second end of the twelfth resistor R12 is connected to an inverting input end of the second operational amplifier; the fifteenth resistor R15 has a first end connected to the inverting input terminal of the second operational amplifier and a second end connected to the output terminal of the second operational amplifier; the twelfth capacitor C12 is connected in parallel with the fifteenth resistor; a first power supply end of the second operational amplifier is connected with the power input through the fourteenth resistor and is grounded through the thirteenth capacitor, and a second power supply end of the second operational amplifier is directly grounded; the output end of the second operational amplifier outputs the conditioned voltage signal, and the conditioned voltage signal is output to the second signal filtering module through a sixteenth resistor.
8. The circuit of claim 6,
the second signal filtering module comprises a fourteenth capacitor C14, a second clamping diode D11, and a nineteenth resistor R19;
the connection relationship is as follows: a cathode of the second clamping diode is connected to a second end of the sixteenth resistor, an anode thereof is grounded, the fourteenth capacitor is connected in parallel to the second clamping diode, and the nineteenth resistor is connected in parallel to the second clamping diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110208706.7A CN113009252A (en) | 2021-02-25 | 2021-02-25 | Aircraft initiating explosive device detonation control and monitoring circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110208706.7A CN113009252A (en) | 2021-02-25 | 2021-02-25 | Aircraft initiating explosive device detonation control and monitoring circuit |
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| CN113009252A true CN113009252A (en) | 2021-06-22 |
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| CN202110208706.7A Pending CN113009252A (en) | 2021-02-25 | 2021-02-25 | Aircraft initiating explosive device detonation control and monitoring circuit |
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