High-overload-resistant multi-channel trigger control module with small-size cavity

Abstract

The invention discloses a high-overload-resistant multi-channel trigger control module for a small-size cavity, and belongs to the technical field of intelligent control. Comprising a power supply board, an adapter board, a middle output board, a control board and a bottom output board, the power supply board is used for boosting an external power supply provided by a thermal battery and outputting a first direct current power supply, and the adapter board comprises a power supply adapter circuit and a power supply conversion circuit. The power supply switching circuit is used for connecting an external direct-current power supply provided by the thermal battery to the power supply board; the power conversion circuit is used for converting an external direct-current power supply provided by the thermal battery into a second direct-current power supply, and the first direct-current power supply and the second direct-current power supply are transmitted to the intermediate output board through the power conversion circuit; the middle output board comprises four ignition output circuits, the bottom output board comprises eight ignition output circuits, and the control board comprises an ignition control circuit and four ignition output circuits. The method has the advantages that the pose adjustment precision can be improved; and high overload can be borne.

Description

Technical Field

[0001] The present invention belongs to the technical field of navigation and guidance, and particularly relates to a multi-channel trigger control module with a small-size cavity resistant to high overload. Background Art

[0002] During the flight of a small-size cavity, the target position is often non-static. Therefore, it is necessary to correct its own flight trajectory in real time according to the target position. With the continuous expansion of the performance requirements for military equipment in the country, there are more stringent requirements for the pose adjustment of small-size cavities. Due to limited space in small-size cavities, it is difficult to integrate high-precision guidance components, and the cost will increase by several times after installing a guidance system. Therefore, guidance research has become an unavoidable problem for improving the flight accuracy of small-size cavities.

[0003] In addition, when a small-size cavity is launched, its overload will exceed 30,000 . In this regard, the designed small-size multi-channel trigger control module needs to meet the requirements of high-overload resistance, and the inertial components inside it and the electronic devices in other hardware circuits also need to meet the performance requirements of high overload. In addition to requiring the hardware circuit to withstand a certain overload, certain protective measures also need to be taken to protect the system.

[0004] The applicant has made a beneficial design to improve the above problems related to small-size cavities. The technical solution to be introduced below was generated under this background. Summary of the Invention

[0005] The purpose of the present invention is to provide a multi-channel trigger control module with a small-size cavity resistant to high overload, which can output sixteen ignition signals in real time in a high-overload working environment to control the booster to eject high-speed gas in the opposite direction, thereby providing a reaction force to adjust the running trajectory of the small-size cavity and improving the pose adjustment accuracy.

[0006] The object of the present invention is achieved in this way. A multi-channel trigger control module for a small-sized cavity with high overload resistance comprises a power supply board, an adapter board, an intermediate output board, a control board and a bottom output board which are stacked and connected in sequence from top to bottom along the axial direction of the small-sized cavity. The power supply board is used to boost the external power provided by the thermal battery and output a first DC power supply. The adapter board comprises a power adapter circuit and a power conversion circuit. The power adapter circuit is used to connect the external DC power provided by the thermal battery to the power supply board; the power conversion circuit is used to convert the external DC power provided by the thermal battery into a second DC power supply. The first DC power supply and the second DC power supply are transferred to the intermediate output board through the power adapter circuit; the intermediate output board comprises a four-way ignition output circuit, the bottom output board comprises an eight-way ignition output circuit, the control board comprises an ignition control circuit and a four-way ignition output circuit, the ignition control circuit outputs sixteen-way ignition control signals, and respectively drives the sixteen-way ignition output circuits to output sixteen-way ignition signals correspondingly, which are used to control the booster to eject high-speed gas in the opposite direction and provide a reaction force to adjust the running trajectory of the small-sized cavity.

[0007] In a specific embodiment of the present invention, the power board, adapter board, intermediate output board, control board and bottom output board are connected in sequence through pin headers with a spacing of 2.0 mm.

[0008] In another specific embodiment of the present invention, the power board, the middle output board and the bottom output board are circular PCB boards, and the adapter board and the control board are rectangular PCB boards.

[0009] In another specific embodiment of the present invention, the gaps between the power board, the adapter board, the intermediate output board, the control board, and the bottom output board and the small-sized cavity are filled with polyurethane packaging glue.

[0010] In yet another specific embodiment of the present invention, the power supply board 1 includes a pin header J10, the adapter board 2 includes pin headers J4 and J5, the intermediate output board 3 includes pin headers J2 and J3, the control board 4 includes pin headers J6 to J7, and the bottom output board 5 includes a pin header J1. The adapter board 2 cascades the pin header J10 in the upper power supply board 1 through the pin header J4 to transfer an external DC power supply to the power supply board 1 and obtain a first DC power supply from the power supply board 1. The intermediate output board 3 introduces the first and second DC power supplies provided by the pin header J5 of the upper adapter board 2 through the pin header J3. The first and second DC power supplies reach the pin header J2 through traces and then are supplied to the lower control board 4. The ignition control circuit 41 includes a single-chip microcomputer U2, and the single-chip microcomputer U2 uses GD32E103T8. The pin header J6 of the control board 4 is connected to the pin header J2 to transfer the ignition control signals of channels 13 to 16 corresponding to the outputs of pins 31 to 34 of the single-chip microcomputer U2 to the four-way ignition output circuit 6 on the intermediate output board 3 respectively. The pin header J7 is connected to the pin header J1 on the bottom output board 5 to transfer the ignition control signals of channels 1 to 8 corresponding to the outputs of pins 11 to 17 and 20 of the single-chip microcomputer U2 to the eight-way ignition output circuit 6 on the bottom output board 5. The pins 23, 24, 29, and 30 of the single-chip microcomputer U2 output the ignition control signals of channels 9 to 12 to the four-way ignition output circuit 6 on the control board 4.

[0011] In still another specific embodiment of the present invention, the power supply board includes a BOOST boost circuit and an automatic regulation voltage stabilization circuit. The BOOST boost circuit boosts the input of a 12V power supply to a 24V power supply signal, and the automatic regulation voltage stabilization circuit stabilizes the 24V power supply signal and then outputs it.

[0012] In yet another specific embodiment of the present invention, the control board further includes a communication circuit. The communication circuit sends the real-time pose information of the small-size cavity received from the pose detection device to the single-chip microcomputer U2, and the single-chip microcomputer U2 outputs ignition control signals of different channels to adjust the flight trajectory of the small-size cavity by using the reaction force provided by the high-speed gas ejected by the booster.

[0013] The present invention adopts a hierarchical I-shaped topology structure and can be applicable to the cavity area with an inner diameter of 25 mm. The present invention designs a sixteen-way ignition output circuit, which can realize the output of multi-channel trigger levels, enabling the small-size cavity to adjust its own pose in real time during flight. Compared with the traditional four-way pose adjustment in the four directions of east, south, west, and north, the angle is more refined and the pose adjustment accuracy is also higher. Polyurethane encapsulation glue is used to fill the gap between the circuit board and the small-size cavity to encapsulate and solidify each circuit board, thereby improving the anti-high-overload ability of the structure itself and making the anti-overload ability > 30,000 G. Description of the Drawings

[0014] Figure 1 is the structural block diagram of the present invention; Figure 2 is the schematic diagram of the connection structure of the present invention; Figure 3 is the structural block diagram of the ignition control of the present invention; Figure 4 is the schematic diagram of the power supply board of the present invention; Figure 5 is the schematic diagram of the adapter board of the present invention; Figure 6 is the schematic diagram of the intermediate output board of the present invention; Figure 7 is the schematic diagram of the control board of the present invention; Figure 8 is the schematic diagram of the bottom output board of the present invention.

[0015] In the figure: 1. Power supply board, 11. BOOST boost circuit, 12. Automatic regulation voltage stabilization circuit; 2. Adapter board, 21. Power supply transfer circuit, 22. Power conversion circuit; 3. Intermediate output board; 4. Control board, 41. Ignition control circuit, 42. Communication circuit; 5. Bottom output board; 6. Ignition output circuit. Specific embodiments

[0016] The following will describe in detail the specific embodiments of the present invention in conjunction with the accompanying drawings. However, the description of the embodiments is not a limitation of the technical solution. Any change in form rather than substance based on the concept of the present invention should be regarded as the protection scope of the present invention.

[0017] In the following description, any concepts related to the directionality (or orientation) of up, down, left, right, front, and back are with respect to the position state of the figure being described, aiming to facilitate public understanding. Therefore, it cannot be understood as a special limitation of the technical solution provided by the present invention.

[0018] The present invention relates to a multi-channel trigger control module with a small-size cavity resistant to high overload, which is mainly applied to small-size cavities with an outer diameter of 20 mm to 40 mm. It has a multi-channel trigger control function and can output sixteen ignition signals in real time in a high-overload working environment to control the booster to eject high-speed gas in the opposite direction, thereby providing a reaction force to adjust the running track of the small-size cavity, improving the attitude adjustment accuracy, and making the flight angle more refined. The pulse response time of the present invention is <50 us, and at the same time, it can withstand an overload of >30,000 G.

[0019] Please refer to Figure 1, the present invention includes a power supply board 1, an adapter board 2, an intermediate output board 3, a control board 4, and a bottom output board 5 that are stacked and connected in sequence from top to bottom along the axial direction of the small-sized cavity. To adapt to the small-sized cavity, the power supply board 1, the intermediate output board 3, and the bottom output board 5 adopt circular PCB boards, and the adapter board 2 and the control board 4 adopt rectangular PCB boards.

[0020] The primary power supply adopted in the present invention is a thermal battery, which has the advantages of short excitation time and strong shock resistance. However, the voltage fluctuation of the thermal battery is significant, and the current ripple is significant, which does not match the operating voltage of the circuit components in this solution. Therefore, it is necessary to stabilize and transform its voltage first. The power supply board 1 is used to boost the external power supply provided by the thermal battery and output the first DC power supply. However, the DC power supply provided by the thermal battery does not directly reach the power supply board 1 but needs to be introduced into the power supply board 1 through the adapter board 2. The adapter board 2 includes a power supply transfer circuit 21, and the power supply transfer circuit 21 only connects the external DC power supply provided by the thermal battery to the power supply board 1 without performing voltage conversion during this process. At the same time, in order to balance the number of components in each module circuit, a power supply conversion circuit 22 for converting the external DC power supply provided by the thermal battery into a second DC power supply is also provided on the adapter board 2. The first DC power supply and the second DC power supply are transferred to the intermediate output board 3 through the power supply transfer circuit 21 and further transmitted to the lower-layer circuit boards. In this embodiment, the function of the power supply board 1 is to boost the 12V external power supply provided by the thermal battery and output a 24V first DC power supply to provide to the intermediate output board 3, the control board 4, and the bottom output board 5, while the second DC power supply is a 3.3V DC power supply provided to the intermediate output board 3 and the control board 4.

[0021] The intermediate output board 3 includes four ignition output circuits 6, and the bottom output board 5 has eight ignition output circuits 6. The control board 4 includes an ignition control circuit 41 and four ignition output circuits 6. The ignition output circuit 6 provides ignition signals for the ignition device. The ignition control circuit 41 includes a single-chip microcomputer U2, and the single-chip microcomputer U2 outputs sixteen ignition control signals, respectively driving sixteen ignition output circuits 6 to correspondingly output sixteen ignition signals to control the booster to eject high-speed gas in the opposite direction to provide a reaction force to adjust the running trajectory of the small-sized cavity.

[0022] Due to the hierarchical design adopted in the present invention, adjacent two PCB boards are connected by pin headers with a 2.0mm spacing. See Figure 2, the power supply board 1 includes a pin header J10, the adapter board 2 includes pin headers J4 and J5, the intermediate output board 3 includes pin headers J2 and J3, the control board 4 includes pin headers J6 to J7, and the bottom output board 5 includes a pin header J1. The adapter board 2 cascades with the pin header J10 in the upper power supply board 1 through the pin header J4, introduces a 12V DC power supply into the power supply board 1 and obtains a 24V DC power supply signal from the power supply board 1. The intermediate output board 3 introduces the 24V and 3.3V DC power supplies provided by the pin header J5 of the upper adapter board 2 through the pin header J3. The 24V DC power supply and the 3.3V DC power supply reach the pin header J2 through traces and then are supplied to the lower control board 4. The control board 4 transmits four-way ignition control signals for channels 13 to 16 to the four-way ignition output circuits 6 on the intermediate output board 3 respectively through the pin headers J6 and J2. The pin header J7 is connected to the pin header J1 on the bottom output board 5 to transmit eight-way ignition control signals for channels 1 to 8 to the eight-way ignition output circuits 6 on the bottom output board 5. The control board 4 also provides four-way ignition control signals for channels 9 to 12 to the four-way ignition output circuits 6 on the control board 4.

[0023] See Figure 4 and in combination with Figure 3, the power supply board 1 includes a BOOST boost circuit 11 and an automatic regulation and voltage stabilization circuit 12. The BOOST boost circuit 11 boosts a 12V DC power supply signal to a 24V DC power supply signal, and the automatic regulation and voltage stabilization circuit 12 stabilizes the 24V DC power supply signal and then outputs it. Specifically, the BOOST boost circuit 11 includes a boost chip U3, an inductor L1, a capacitor C13, and resistors R36 and R37. The boost chip U3 uses MT4946. The automatic regulation and voltage stabilization circuit 12 includes an automatic regulation and voltage stabilization chip U4, capacitors C2, C4, C14 to C19, and resistors R38 to R41. The automatic regulation and voltage stabilization chip U4 uses ZCC9428. First, a 12V DC power supply is introduced from the adapter board 2 into the power supply board 1 through pins 1 and 2 of the pin header J10. Subsequently, the 12V DC power supply, on the one hand, serves as a power supply. After passing through the resistor R41, it enters pin 6 of the automatic regulation and voltage stabilization chip U4 in the power supply board 1. According to the working principle of the automatic regulation and voltage stabilization chip U4: when the voltage at pin 6 of the automatic regulation and voltage stabilization chip U4 is greater than 6V, a resistor R41 with a resistance value of 100KΩ is connected in series, and the automatic regulation and voltage stabilization chip U4 can start self - operation. On the other hand, the 12V DC power supply is connected to pins 7 and 8 of the boost chip U3 after passing through the inductor L1. The output end of the boost chip U3 is pin 2, which is connected to pin 13 of the automatic regulation and voltage stabilization chip U4. By controlling pin 13 of the automatic regulation and voltage stabilization chip U4, the on - off of the boost chip U3 can be controlled, thereby realizing the input - end signal isolation function. The 12V DC power supply enters pin 14 of the automatic regulation and voltage stabilization chip U4. The automatic regulation and voltage stabilization chip U4 regulates the 12V DC power supply and outputs a 24V DC power supply. At the same time, the output 24V DC power supply is used as a feedback voltage signal and enters pin 2 of the automatic regulation and voltage stabilization chip U4 for feedback regulation, forming a closed - loop voltage regulation system to stabilize the voltage at 24V and output it to pin 3 of the pin header J10.

[0024] See Figure 5 , on the adapter board 2, the power supply transfer circuit 21 includes a capacitor C3 and pin headers J4 and J5. The power conversion circuit 22 includes capacitors C5, C6, and a low - dropout regulator U1. In addition, a capacitor C1 and pads O13 and O14 for introducing an external 12V DC power supply are provided on the adapter board 2. The capacitor C1 is connected in parallel with the 12V DC power supply, and the capacitor C3 is connected in parallel with the 24V DC power supply to reduce electromagnetic interference in the multi - channel trigger control module. The 3rd pin of the low - dropout regulator U1 is connected to the 12V DC power supply introduced from the upper - side power supply board 1. The input 12V DC power supply is converted and a 3.3V DC power supply is output at pins 2 and 4. At the same time, a 0.1uF capacitor C5 and a 10uF capacitor C6 are connected in parallel to reduce the voltage fluctuation of the 3.3V DC power supply caused by electromagnetic interference generated by other components in the entire multi - channel trigger control module, thereby improving the stability of the operation of the microcontroller U2 on the control board 4.

[0025] See Figure 6 The middle output board 3 includes four ignition output circuits 6, namely: the ignition output circuit 6 of channel 13 composed of resistor R17, R19, BJT transistor Q19 and PMOS transistor Q17; the ignition output circuit 6 of channel 14 composed of resistor R18, R20, BJT transistor Q20 and PMOS transistor Q18; the ignition output circuit 6 of channel 15 composed of resistor R21, R23, BJT transistor Q23 and PMOS transistor Q21; the ignition output circuit 6 of channel 16 composed of resistor R22, R24, BJT transistor Q24 and PMOS transistor Q22. Taking the ignition output circuit 6 of channel 13 as an example, the base of BJT transistor Q19 is connected to the control board 4, the collector is connected to one end of resistor R19, the other end of resistor R19 is connected to the gate of PMOS transistor Q17 and one end of resistor R17, the drain of PMOS transistor Q17 outputs an ignition signal to the ignition device, the source of PMOS transistor Q17 and the other end of resistor R17 are commonly connected to the +24V DC power supply, and the emitter of BJT transistor Q19 is grounded. In the figure, the bases of BJT transistors Q19, Q20, Q23, and Q24 are respectively connected to the ignition control signals sent by the control board 4, and the drains of PMOS transistors Q17, Q18, Q21, and Q22 respectively output ignition signals. The 24V DC power supply supplies power to each PMOS transistor, driving each PMOS transistor to operate in the amplification region. Since the four ignition output circuits 6 included in the control board 4 and the eight ignition output circuits 6 included in the bottom output board 5 both adopt the above structure, the specific structure of these twelve ignition output circuits 6 will not be described hereinafter. The function of the middle output board 3 is to receive the four ignition control signals sent by the control board 4 for amplification processing. The 24V DC power supply also drives the BJT transistors in the four ignition output circuits 6 to pull to the ground through the signals provided by the control board 4, so that the voltage division of the resistor on the G foot of the PMOS transistor is 12V and the VGS voltage is -12V, realizing conduction and outputting a 24V instantaneous pulse voltage. Pads O9, O10, O11, and O12 are also provided on the middle output board 3 for outputting the four amplified ignition signals to the ignition device.

[0026] See Figure 7, the control board 4 includes a single-chip microcomputer U2, a pin header J10, a four-channel ignition output circuit 6, and pads O15 to O18 for leading out four-channel ignition signals. The peripheral circuit of the single-chip microcomputer U2 includes resistors R29 and R30, and capacitors C7 to C11. In this embodiment, the single-chip microcomputer U2 uses GD32E103T8. The single-chip microcomputer U2 and its peripheral circuit constitute an ignition control circuit 41, which outputs sixteen-channel ignition control signals to drive the sixteen-channel ignition output circuit 6 to output ignition signals respectively. Specifically, the 3.3V DC power supply led out by the pin header J2 on the intermediate output board 3 supplies power to the single-chip microcomputer U2. Before entering the single-chip microcomputer U2, the 3.3V DC power supply is connected in parallel with capacitors C7, C8, C9, and C10 to remove electromagnetic interference and make the power supply voltage entering the inside of the single-chip microcomputer U2 stable. The four-channel OUTPUT13 to OUTPUT16 signals output from the 31st, 32nd, 33rd, and 34th pins of the single-chip microcomputer U2 are sent to the pin header J2 of the intermediate output board 3 through the pin header J6 to control the BJT transistors Q19, Q20, Q23, and Q24 of the corresponding channels 13 to 16 on the intermediate output board 3. At the same time, the INPUT9 to INPUT12 signals output from the 23rd, 24th, 29th, and 30th pins of the single-chip microcomputer U2 ground the BJT transistors Q27, Q28, Q31, and Q32 in the four ignition output circuits 6 of the corresponding channels 9 to 12 on the control board 4, so that the voltage division of the resistors on the G feet of the PMOS transistors Q25, Q28, Q31, and Q32 is 12V, and the VGS voltage is -12V, realizing conduction and outputting a 24V instantaneous pulse voltage. Finally, four-channel ignition signals are led out through the bonding wires of the pads O15 to O18 and output to the ignition device. The INPUT1 to INPUT8 signals on the 11th to 17th pins and the 20th pin of the single-chip microcomputer U2 are transmitted to the bottom output board 5 through the pin header J7 and the pin header J1 to provide ignition control signals for the BJT transistors Q5 to Q8, Q13 to Q16 in the eight ignition output circuits 6 of the corresponding channels 1 to 8. At the same time, the pin header J7 is also connected to the 24V DC power supply for power supply.

[0027] Further, the control board 4 also constitutes a communication circuit 42 through the pin header J10. The pin header J10 is connected to two groups of USART_TX and USART_RX pins (the 21st, 22nd, 9th, and 10th pins) of the single-chip microcomputer U2. The communication circuit 42 sends the real-time pose information of the small-size cavity received from the pose detection device to the single-chip microcomputer U2, and the single-chip microcomputer U2 controls the ignition of different channels to adjust the flight trajectory of the small-size cavity.

[0028] See Figure 8, the main function of the bottom output board 5 is to amplify and process the ignition control signal transmitted by the upper control board 4. The bottom output board 5 is provided with pads O1 to O8. The eight-way ignition control signal pulls the BJT transistors Q5 to Q8, Q13 to Q16 to ground, so that the voltage division of the resistors on the G pins of the PMOS transistors Q1 to Q4, Q9 to Q12 is 12V, and the VGS voltage is -12V, thereby realizing conduction to output a 24V instantaneous pulse voltage, and leading out eight-way ignition signals to the ignition device through the bonding wires of the pads O1 to O8.

[0029] Through the selection of encapsulation glue and the combination of encapsulation technology, the present invention can withstand high overload. The present invention selects polyurethane encapsulation glue to fill the gap between the circuit board and the small-size cavity. The advantages of this encapsulation glue are as follows: it not only has characteristics such as high elasticity, high elongation rate, and high strength, but also has good wear resistance, anti-aging, anti-impact, and oil resistance; it has high adhesiveness and can ensure the adhesion of the integrated circuits, components, and wires sealed in the circuit; it has a small expansion coefficient and can ensure that the internal circuit chips and wires will not break due to encapsulation; it has certain heat resistance and low-temperature resistance and can ensure that the circuit adapts to different temperature environments; it has good moisture resistance and corrosion resistance and can ensure that the circuit is not affected by environmental humidity, avoid circuit pollution, and ensure the reliability of the device; it has good fatigue resistance and lasting strength.

[0030] Aiming at the service condition that the multi-channel trigger control module needs to withstand high overload, this patent uses ANSYS simulation software to test the anti-high-overload performance of the system. Through testing, it can be obtained that the multi-channel trigger control module of the present invention after being encapsulated with polyurethane can withstand an impact of more than 3G, the performance is qualified, and the invention purpose is achieved.

Claims

1. A multi-channel trigger control module with small-size cavity and high overload resistance, characterized in that: The invention comprises a power supply board (1), an adapter board (2), an intermediate output board (3), a control board (4) and a bottom output board (5) which are sequentially stacked and connected from top to bottom along the axial direction of the small-sized cavity. The power supply board (1) is used to boost the external power provided by the thermal battery and output a first direct current power supply. The adapter board (2) comprises a power supply adapter circuit (21) and a power supply conversion circuit (22). The power supply adapter circuit (21) is used to connect the external direct current power provided by the thermal battery to the power supply board (1). The power supply conversion circuit (22) is used to convert the external direct current power provided by the thermal battery into a second direct current power supply. The first direct current The DC power source and the second DC power source are transferred to the intermediate output board (3) through the power supply transfer circuit (21); the intermediate output board (3) includes four ignition output circuits (6); the bottom output board (5) includes eight ignition output circuits (6); the control board (4) includes an ignition control circuit (41) and four ignition output circuits (6); the ignition control circuit (41) outputs sixteen ignition control signals, respectively driving the sixteen ignition output circuits (6) to output sixteen ignition signals correspondingly, which are used to control the booster to eject high-speed gas in the opposite direction, thereby providing a reaction force to adjust the running trajectory of the small-sized cavity.

2. According to claim 1, a multi-channel trigger control module with small-size cavity and high overload resistance, characterized in that: The power board (1), adapter board (2), intermediate output board (3), control board (4) and bottom output board (5) are connected in sequence via pin headers with a spacing of (2).(0) mm.

3. According to claim 1, a multi-channel trigger control module with small-size cavity and high overload resistance, characterized in that: The power board (1), the middle output board (3) and the bottom output board (5) are circular PCB boards, and the adapter board (2) and the control board (4) are rectangular PCB boards.

4. According to claim 1, a multi-channel trigger control module with small-size cavity and high overload resistance is characterized in that: The gaps between the power board (1), the adapter board (2), the intermediate output board (3), the control board (4) and the bottom output board (5) and the small-sized cavity are filled with polyurethane packaging glue.

5. The multi-channel trigger control module for small-sized cavity with high overload resistance according to claim 1, characterized in that: The power board (1) includes a pin header J10, the adapter board (2) includes pin headers J4 and J5, the intermediate output board (3) includes pin headers J2 and J3, the control board (4) includes pin headers J6-J7, and the bottom output board (5) includes a pin header J1. The adapter board (2) cascades the pin header J4 with the pin header J10 in the upper power board (1) to transfer the external DC power to the power board (1) and obtain the first DC power from the power board (1). The intermediate output board (3) introduces the first and second DC power supplies provided by the pin header J5 of the upper adapter board (2) through the pin header J3. The first and second DC power supplies are routed to the pin header J2 and then provided to the control board (4) below. The ignition control The circuit (41) includes a single-chip microcomputer U2, wherein the single-chip microcomputer U2 adopts GD32E103T8. The pin header J6 of the control board (4) is connected to the pin header J2, and the ignition control signals of channels 13 to 16 corresponding to the outputs of pins 31 to 34 of the single-chip microcomputer U2 are respectively transmitted to the four-way ignition output circuit (6) on the middle output board (3). The pin header J7 is connected to the pin header J1 on the bottom output board (5), and the ignition control signals of channels 1 to 8 corresponding to the outputs of pins 11 to 17 and pin 20 of the single-chip microcomputer U2 are transmitted to the eight-way ignition output circuit (6) on the bottom output board (5). The pins 23, 24, 29, and 30 of the single-chip microcomputer U2 output the ignition control signals of channels 9 to 12 to the four-way ignition output circuit (6) on the control board (4).

6. The multi-channel trigger control module for small-sized cavity with high overload resistance according to claim 1, characterized in that: The power board (1) comprises a BOOST voltage-boosting circuit (11) and an automatic voltage-regulating and stabilizing circuit (12); the BOOST voltage-boosting circuit (11) boosts a 12V power input to a 24V power signal; and the automatic voltage-regulating and stabilizing circuit (12) stabilizes the 24V power signal and outputs it.

7. The multi-channel trigger control module for small-sized cavity with high overload resistance according to claim 1, characterized in that: The control board (4) also includes a communication circuit (42), which sends the real-time posture information of the small-sized cavity received from the posture detection device to the single-chip microcomputer U2, and the single-chip microcomputer U2 outputs ignition control signals of different channels, and uses the reaction force provided by the high-speed gas ejected by the booster to adjust the flight trajectory of the small-sized cavity.

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