Multi-path jamming bomb ignition and self-inspection system and method

Abstract

The invention discloses a multipath jamming bomb ignition and self-checking system and method. The system comprises a control unit circuit, an ignition and self-checking circuit, a power supply circuit and an interface unit circuit, the interface unit circuit performs information interaction with an upper computer through an Ethernet interface and receives a control strategy sent by the upper computer; the control unit circuit is connected with the interface unit circuit and the ignition and self-checking circuit, sends a self-checking or ignition signal and collects an ignition and self-checking current signal; the power supply circuit is connected with other circuits to supply power; and the jamming bomb ignition and self-checking circuit is used for carrying out self-checking / ignition circuit switching to realize ignition and self-checking of multiple jamming bombs, carrying out self-checking on the jamming bombs, collecting ignition current or self-checking current and uploading the ignition current or the self-checking current to the control unit circuit so as to provide auxiliary judgment for the condition of the jamming bombs. The method has the advantages of high reliability and stability and the like.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of chaff cartridges, and particularly relates to a multi-channel chaff cartridge ignition and self-check system and method. Background Art

[0002] In modern military confrontations, chaff cartridges, as an important means of electronic countermeasures, are widely used in various combat scenarios. With the continuous development of technology, the performance and reliability requirements for chaff cartridges are also getting higher and higher. Traditional chaff cartridge ignition and self-check circuits have problems such as imperfect self-check functions, low ignition reliability, and insufficient safety when facing the application scenarios of multi-channel chaff cartridges. The specific manifestations are as follows:

[0003] In terms of self-check: 1. Low efficiency, unable to quickly determine the states of all chaff cartridges to make timely decisions; 2. Limited accuracy, unable to accurately detect the states of multiple chaff cartridges.

[0004] In terms of ignition: 1. Poor synchronization, it is difficult to ensure that the ignition times of multiple chaff cartridges are completely synchronous, reducing the interference effect and even affecting the success of combat missions; 2. Poor flexibility, traditional ignition circuits usually have difficulty adapting to multi-channel chaff cartridge systems with different quantities and layouts, and it is difficult to quickly adjust and optimize the ignition strategy when facing complex and changeable combat requirements; 3. Insufficient safety, there are situations such as misfiring and accidental ignition.

[0005] The existing patent application "Aircraft Chaff Cartridge Ignition Circuit Detection Device" provides a detection device directly installed on an aircraft to solve the problems of cumbersome operation and low detection efficiency existing in the existing aircraft chaff cartridge ignition circuit detection equipment. This device detects the ignition current signal through a Hall sensor to realize the display of the ignition current, and by directly installing it on the aircraft, it reduces repetitive work and improves the detection efficiency. Although the existing chaff cartridge ignition and self-check circuits can detect the ignition current in real time, they lack means for online self-check, resulting in a long self-check process, affecting the quick response ability of chaff cartridges. At the same time, some self-check circuits have a single detection method and cannot comprehensively and accurately judge the states of chaff cartridges. The ignition circuit design is single, with poor reliability. The old technology causes low ignition accuracy and poor compatibility of chaff cartridges. At the same time, it lacks intelligent control functions and cannot be applied to different scenarios. Summary of the Invention

[0006] Aiming at the technical problems existing in the prior art, the present invention provides a multi-channel chaff cartridge ignition and self-check system and method that improve stability and reliability.

[0007] To solve the above technical problems, the technical solution proposed by the present invention is as follows:

[0008] A multi-channel jammer ignition and self-check system includes a control unit circuit, an ignition and self-check circuit, a power supply circuit, and an interface unit circuit; the interface unit circuit interacts with the host computer through an Ethernet interface to receive the control strategy sent by the host computer; the control unit circuit is connected to the interface unit circuit and the ignition and self-check circuit, sends self-check or ignition signals, and collects ignition and self-check current signals; the power supply circuit is connected to other circuits for power supply; the jammer ignition and self-check circuit is used to switch the self-check / ignition circuit to achieve the ignition and self-check of the multi-channel jammer, perform self-check on the jammer, and collect the ignition current or self-check current and upload it to the control unit circuit to provide auxiliary judgment for the situation of the jammer.

[0009] Preferably, the jammer ignition and self-check circuit includes an input unit, a DC-DC converter, an output filtering unit, a sampling and feedback unit, and a MOS transistor control unit; the input unit, the DC-DC converter, the output filtering unit, and the sampling and feedback unit are connected in sequence; the input voltage VIN_GRD of the input unit is 12V and enters the circuit through the filter FB1; three capacitors C1, C2, and C3 are connected in parallel at the input end of the input unit to filter out high-frequency noise in the input voltage and ensure the stability of the input voltage.

[0010] Preferably, the DC-DC converter is U1. Among them, in the self-check circuit, U1 selects XL3001E1; in the ignition circuit, U1 selects XL3003E1; the VIN pin of U1 is connected to the input voltage VIN_GRD; the VC pin of U1 is connected to the capacitor C3, the GND pin of U1 is connected to the ground, the SW pin of U1 is connected to the inductor L1 and the diode D1 for switch control, and the CS pin of U1 is connected to the feedback resistor R3 for current detection.

[0011] Preferably, the output filtering unit includes an inductor L1, output capacitors C4, C5. Among them, the inductor L1 is connected between the SW pin of U1 and the output end for energy storage and filtering; the output capacitors C4, C5 are connected in parallel at the output end of U1 to further filter out high-frequency ripples and ensure the stability of the output voltage.

[0012] Preferably, the sampling and feedback unit includes a sampling resistor R1, feedback resistors R2, R3, and a diode D1. Among them, the sampling resistor R1 is connected to the output end of U1 to detect the output current and convert the current signal into a voltage signal; one end of R2 is connected to the CS pin of U1, and the other end is connected to the resistor R3. The feedback resistor R3 is used to set the output current value, and R2 is used for current detection and feedback; the anode of the diode D1 is connected to the GND pin of U1, and the cathode is connected to the SW pin of U1. The diode D1 serves as a rectifier diode to protect the circuit from reverse current.

[0013] Preferably, the MOS transistor control unit includes a PMOS transistor Q1, an NMOS transistor Q3, an anti-reverse diode D2, and control transistors Q2 and Q4. The PMOS transistor Q1 is the positive pole switch transistor for controlling the conduction and cut-off of the positive pole. The gate of Q1 is connected to the GRD_C_EN+ pin of the MCU through a control circuit composed of R4, R5, R6, R7, and C6. When the MCU outputs a high level, Q1 conducts. The control transistor Q2 is used to drive the gate of the PMOS transistor Q1. The anti-reverse diode D2 is connected to the positive pole to prevent the reverse flow of current. The NMOS transistor Q3 is the negative pole switch transistor for controlling the conduction and cut-off of the negative pole. The gate of Q3 is connected to the GRD_C_EN- pin of the MCU through a control circuit composed of R8, R9, R10, and C7. When the MCU outputs a low level, Q3 conducts. The control transistor Q4 is used to drive the gate of the NMOS transistor Q3. The output terminals of the output unit are GRD_BIT+, GRD_I+, GRD_I-, GRD_BIT+ and GRD_I+ are the positive pole output terminals, and GRD_I- is the negative pole output terminal. When the positive pole and the negative pole conduct simultaneously, the output terminal conducts to perform a self-check or ignition operation.

[0014] The present invention also discloses a method based on the above-mentioned multi-channel jammer ignition and self-check system, including a self-check method, and the specific steps are as follows:

[0015] Send self-check instructions to all bomb positions in a polling manner, measure the resistance value of the jammer through a safe and tiny current to judge the state of the jammer. If the measured resistance value is within the normal range, mark that there is a bomb at this bomb position and move to the next bomb position for self-check; send instructions to the same bomb position at most three times until the bomb inspection is successful. If the normal resistance value information is still not received for the third time, mark this bomb position as an empty bomb. After the circuit completes the self-check work for all bomb positions, upload the self-check results to the controller.

[0016] Preferably, it includes an ignition method, and the specific steps are as follows: Select numbers according to needs to achieve single-shot launch, continuous launch, and salvo launch;

[0017] In the single-shot launch mode, select any number from 1 to n jammer bombs. After launch, the ignition and self-check circuit actively reports the status information and feedbacks whether the launch is successful. If the circuit does not report the jammer bomb status information within the preset time, it is prompted that the current launch channel times out;

[0018] In the continuous launch mode, any selectable number from 1 to n jammer bombs can be selected, and the launch interval time is set. The circuit launches in ascending order according to the selected serial numbers and launches in sequence according to the set launch time interval to achieve the continuous launch of jammer bombs. After launch, the circuit actively reports the jammer bomb status information and feedbacks whether the launch is successful. If the circuit does not report the jammer bomb status information within the preset time, it is prompted that the current launch channel times out;

[0019] In the salvo launch mode, any number from 1 to n of the jammer rounds can be selected. After the salvo launch, the circuit actively reports the status information of the jammer rounds and feedbacks whether the launch is successful. If the circuit fails to report the status information of the jammer rounds within the preset time, it will prompt that the current launch channel has timed out.

[0020] Compared with the prior art, the advantages of the present invention are as follows:

[0021] Through the multi-channel self-check technology, the present invention quickly self-checks multiple jammer rounds to ensure that the status of each channel of jammer rounds can be accurately monitored; synchronous ignition control ensures that multiple jammer rounds can be ignited simultaneously at precise time points to achieve the best jamming effect; high-reliability design uses redundancy design, fault detection and isolation technology, etc. to improve reliability; intelligent management and control can automatically adjust the ignition and self-check channels according to different combat requirements and environmental conditions.

[0022] The present invention has the function of multi-channel self-check of jammer rounds, and can detect each channel of jammer rounds before use through an online method, quickly locate the fault position, and improve the maintenance efficiency; the present invention adopts a multi-channel design, can handle the ignition and self-check tasks of multiple jammer rounds, can start multiple jammer rounds simultaneously for jamming according to different strategies, increase the probability of successful defense, has strong system flexibility, can select different numbers of jammer rounds for ignition, and adapt to various complex scenario requirements; the present invention has a two-stage control reliable ignition circuit, can accurately control the ignition time, reduce the risk of misfiring, effectively prevent the occurrence of misfiring events, and ensure the safety of personnel and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the schematic diagram of the ignition and self-check system of the present invention.

[0024] Figure 2 is the structural block diagram of the ignition and self-check system of the present invention in an embodiment.

[0025] Figure 3 is the circuit schematic diagram of the ignition and self-check circuit of the present invention in an embodiment.

[0026] Figure 4 is the circuit schematic diagram of the MOS transistor control unit of the present invention in an embodiment.

[0027] Figure 5 is the circuit schematic diagram of the cartridge position switching circuit of the present invention in an embodiment.

[0028] Figure 6 is the circuit schematic diagram of the jammer round interface of the present invention.

[0029] Figure 7 is the flowchart of the self-check method of the present invention in an embodiment.

[0030] Figure 8 This is the flowchart of the ignition method in the embodiment of the present invention. Detailed implementation manners

[0031] The present invention will be further described below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0032] As Figure 1 shown, the multi-channel jammer ignition and self-check system provided by the embodiment of the present invention has multi-channel jammer ignition channels, which are expandable, and performs information interaction with the host computer through an Ethernet interface; the circuit ignites and self-checks the jammers according to the instructions of the host computer, and reports the status information of the jammers after ignition to the host computer, realizing fine management and precise control of multiple jammers. The circuit has the function of multi-channel self-check for jammers. During self-check, it checks the multi-channel jammer channels in a polling manner, and judges the status of the jammers by measuring the resistance value of ignition with a safe and tiny current. Before launch, abnormal bombs or poor assembly contacts can be detected by this method, and the self-check after launch can detect the bombs with abnormal ignition. The host computer completes the ignition and self-check of the jammers according to the formulated bomb-throwing strategy.

[0033] As Figure 2 shown, the multi-channel jammer ignition and self-check system includes a control unit circuit, an ignition and self-check circuit, a power supply circuit and an interface unit circuit; the interface unit circuit performs information interaction with the host computer through an Ethernet interface and receives the control strategy sent by the host computer; the control unit circuit is connected to the interface unit circuit and the ignition and self-check circuit, sends self-check or ignition signals, and collects ignition and self-check current signals; the power supply circuit supplies power to other circuits; the jammer ignition and self-check circuit has the function of current collection, can upload the ignition current or self-check current, and provides an auxiliary judgment for the situation of the jammers; it can switch between the self-check / ignition circuits, and completes the self-check of the jammers by using a safe and tiny current detection loop method to prevent mis-triggering of the jammers; a bomb position switching circuit is designed to realize the ignition and self-check of multiple jammers.

[0034] In a specific embodiment, the chaff flare ignition and self-checking circuit includes functions such as power supply, constant current, current acquisition, and power supply switch. The power supply is converted through DC-DC to obtain the power supply. After receiving the ignition instruction sent by the controller, the single-chip microcomputer controls the high-power MOS transistor to conduct to select the self-checking or ignition constant current source. On the premise of ensuring the reliability of the chaff flare, the self-checking or ignition chaff flare is selected by switching the MOS channel. The circuit adopts a low-voltage and short-time current-carrying mode. The self-checking current of the self-checking power supply constant current source is 10 mA, and the maximum current of the ignition power supply constant current source is 4 A. It can simultaneously control the ignition of 8 chaff flares with an ignition current of 0.5 A. When no chaff flare is loaded, the loop is not conducting and no current passes through. After loading the chaff flare, the loop conducts, and the loop current is detected through a high-precision sampling resistor. The current can be converted into a voltage through a differential operational amplifier for the MCU to collect. Based on this, the abnormal or loaded-abnormal chaff flare can be detected, and it is ensured that abnormal ignition will not be triggered during the self-checking process.

[0035] As Figure 3 shown, the input voltage VIN_GRD of the chaff flare ignition and self-checking circuit is 12 V. In the self-checking circuit, U1 selects XL3001E1, and in the ignition circuit, U1 selects XL3003E1. R3 is used to set the output current value. D1 is the rectifier diode of the constant current source circuit. C1 and C2 are input capacitors. L1, C4, and C5 form the output filter circuit. R1 is the sampling resistor, which is used to feedback the detection result.

[0036] Specifically, the chaff flare ignition and self-checking circuit includes an input unit, a DC-DC converter, an output filter unit, a sampling and feedback unit, and a MOS transistor control unit. The input voltage VIN_GRD of the input unit is 12 V, and it enters the circuit through the filter FB1. Three capacitors (C1, C2, and C3) are connected in parallel at the input end of the input unit, which are used to filter out the high-frequency noise in the input voltage and ensure the stability of the input voltage.

[0037] The DC-DC converter is U1. In the self-checking circuit, U1 selects XL3001E1; in the ignition circuit, U1 selects XL3003E1. The VIN pin (pin 4) of U1 is connected to the input voltage VIN_GRD; the VC pin (pin 3) of U1 is connected to the capacitor C3, the GND pins (pins 7 and 8) of U1 are connected to the ground, and the SW pins (pins 5, 6, and 9) of U1 are connected to the inductor L1 and the diode D1 for switching control. The CS pin (pin 1) of U1 is connected to the feedback resistor R3 for current detection.

[0038] The output filter unit includes the inductor L1, the output capacitors C4 and C5. The inductor L1 is connected between the SW pin of U1 and the output end for energy storage and filtering. The output capacitors C4 and C5 are connected in parallel at the output end of U1 to further filter out the high-frequency ripple and ensure the stability of the output voltage.

[0039] The sampling and feedback unit includes a sampling resistor R1, feedback resistors R2, R3, and a diode D1. The sampling resistor R1 is connected to the output terminal of U1, used to detect the output current and convert the current signal into a voltage signal. One end of R2 is connected to the CS pin of U1, and the other end is connected to the resistor R3. The feedback resistor R3 is used to set the output current value, and R2 is used for current detection and feedback. The anode of the diode D1 is connected to the GND pin of U1, and the cathode is connected to the SW pin of U1. The diode D1 serves as a rectifying diode to protect the circuit from reverse current.

[0040] The MOS transistor control unit includes a PMOS transistor Q1, an NMOS transistor Q3, an anti - reverse diode D2, and control transistors Q2 and Q4. The PMOS transistor Q1 is the positive - pole switch transistor, used to control the conduction and cut - off of the positive pole. The gate of Q1 is connected to the GRD_C_EN + pin of the MCU through a control circuit composed of R4, R5, R6, R7, and C6. When the MCU outputs a high level, Q1 conducts. The control transistor Q2 is used to drive the gate of the PMOS transistor Q1. The anti - reverse diode D2 is connected to the positive pole to prevent the reverse flow of current.

[0041] The NMOS transistor Q3 is the negative - pole switch transistor, used to control the conduction and cut - off of the negative pole. The gate of Q3 is connected to the GRD_C_EN - pin of the MCU through a control circuit composed of R8, R9, R10, and C7. When the MCU outputs a low level, Q3 conducts. The control transistor Q4 is used to drive the gate of the NMOS transistor Q3.

[0042] The output terminals of the output unit are GRD_BIT +, GRD_I +, GRD_I -, GRD_BIT + and GRD_I + are the positive - pole output terminals, and GRD_I - is the negative - pole output terminal. When both the positive pole and the negative pole conduct simultaneously, the output terminal conducts to perform a self - test or ignition operation.

[0043] With the above structure, the circuit realizes the ignition and self - test functions of the chaff, and at the same time has the capabilities of fast response and abnormal detection. Specifically, the chaff ignition and self - test circuit adopts two - stage control. When receiving a command, first, the current - source channel is turned on, and then the corresponding chaff channel is enabled. The control circuit is as Figure 4 shown. The positive pole is designed with a PMOS switch transistor Q1, and the power - supply negative pole is designed with an NMOS switch transistor Q3. The high - level GRD_C_EN + of the MCU pin controls the conduction of the positive pole, and the low - level GRD_C_EN - output by the MCU controls the conduction of the negative pole. Only when both the positive pole and the negative pole conduct simultaneously can a self - test or ignition be performed, improving the reliability of launching. R4, R5, R6, R7, C6, and Q2 form the control circuit of the positive - pole PMOS switch transistor Q1, D2 is the anti - reverse diode of the positive pole, and R8, R9, R10, C7, and Q4 form the control circuit of the negative - pole NMOS switch transistor Q3.

[0044] The fast switching of the MOS transistor channel can meet the requirements of the system's fast response. The MOS turn-on time is 35 ns, and the turn-off time is 87 ns. The switching time of the two-stage drive of the MOS transistor is in the microsecond level, and the IO switching of the single-chip microcomputer is about in the microsecond level, which can meet the continuous emission or self-check requirements with an interval of milliseconds during the system operation.

[0045] As Figure 5 - Figure 6 shown, the bullet position switching circuit controls the switching of multiple chaff projectile channels. The circuit is designed with PMOS switching transistors and is consistent with the control circuit of the positive pole in the two-stage control circuit of the ignition and self-check circuits. As Figure 5 shown, GRD_VI_SUM is the convergence point of multiple channels. Each channel is independently controlled by the MCU through GRD1_EN to GRDn_EN. The channels are independently designed to improve the reliability of channel emission. Multiple chaff projectiles are connected to the ignition and self-check circuits through J1. GRD_P1 to GRD_Pn are connected to the channel selection circuit. R19, R20, and R21 are the current-limiting resistors for each channel loop to avoid excessive ignition current for a single chaff projectile.

[0046] As Figure 7 shown, the embodiment of the present invention also provides a method based on the above-mentioned multi-channel chaff projectile ignition and self-check system, including a self-check method: after the circuit power-on initialization is completed, the chaff projectiles are automatically self-checked; self-check instructions are sent to all bullet positions in a polling manner, and the resistance values of the chaff projectiles are measured by a safe micro-current to judge the state of the chaff projectiles. If the measured resistance value is within the normal range, there is a projectile at this bullet position, and it moves to the next bullet position for self-check; the same bullet position is sent instructions up to three times until the bullet inspection is successful. If the normal resistance value information is still not received for the third time, this bullet position is marked as an empty projectile; after the circuit completes the self-check work for all bullet positions, the self-check results are uploaded to the controller.

[0047] As Figure 8 shown, in the ignition method, the number can be selected as needed to achieve single-shot emission, continuous emission, and salvo emission;

[0048] In the single-shot emission mode, any number from 1 to n of the chaff projectiles can be selected. After the emission, the ignition and self-check circuit actively reports the status information and feedbacks whether the emission is successful. If the circuit does not report the status information of the chaff projectile within 2 s, it is prompted that the current emission channel times out;

[0049] In the continuous emission mode, any selectable number from 1 to n of the chaff projectiles can be selected, and the emission interval time is set. The circuit emits in sequence according to the selected serial number from small to large according to the set emission time interval to achieve continuous emission of chaff projectiles. After the emission, the circuit actively reports the status information of the chaff projectile and feedbacks whether the emission is successful. If the circuit does not report the status information of the chaff projectile within 2 s, it is prompted that the current emission channel times out;

[0050] In the salvo launch mode, any number from 1 to n of the chaff cartridges can be selected, with a maximum of 8 selected simultaneously. After the salvo launch, the circuit actively reports the status information of the chaff cartridges and feedbacks whether the launch is successful. If the circuit fails to report the status information of the chaff cartridges within 2 s, it indicates that the current launch channel has timed out.

[0051] In terms of self-check in the present invention: it can accurately detect the status of multiple chaff cartridges, ensuring that the specific conditions of each chaff cartridge are accurately grasped before use, and avoiding affecting the overall combat effectiveness due to the failure of individual chaff cartridges; the rapid fault location can quickly determine the specific location where the fault occurs, shorten the fault troubleshooting time, improve the maintenance efficiency, and ensure that the system can quickly resume normal operation in case of emergency. In terms of ignition: for multiple chaff cartridges, it can achieve synchronous ignition control, ensuring that the ignition times of each chaff cartridge are exactly the same, improving the jamming effect and achieving specific tactical objectives; in case of emergency use, it has extremely high reliability; it has a perfect safety mechanism to prevent misfiring, accidental ignition and other situations, and ensure the safety of operators and equipment.

[0052] The present invention ignites and self-checks the chaff cartridges based on a microcontroller, realizes the inspection of multiple chaff cartridges through a polling method, measures a safe and small current to judge whether the chaff cartridges are in place, and improves the reliability of launch through a two-stage controlled ignition circuit.

[0053] The present invention timely discovers potential faults of the chaff cartridges through a multi-channel on-line self-check circuit, improving the reliability; through a two-stage ignition control circuit, it prevents misfiring or accidental ignition, enhancing the safety; through a multi-channel design, it controls the ignition and self-check of multiple chaff cartridges, improving the reaction speed and efficiency; through the information provided by the self-check circuit, it is convenient for maintenance personnel to carry out rapid diagnosis and repair; at the same time, the multi-channel design improves the convenience of chaff cartridge management and the efficiency of logistics support; according to different scenarios, it flexibly adjusts the chaff cartridge launch strategy to adapt to different application requirements.

[0054] The present invention conducts rapid self-check on multiple chaff cartridges through a multi-channel self-check technology, ensuring that the status of each chaff cartridge can be accurately monitored; synchronous ignition control ensures that multiple chaff cartridges can be ignited simultaneously at an accurate time point to achieve the best jamming effect; high-reliability design adopts redundant design, fault detection and isolation technology, etc. to improve the reliability; intelligent management and control can automatically adjust the ignition and self-check channels according to different combat requirements and environmental conditions.

[0055] The present invention has a multi-channel jammer self-check function, which can detect each channel of jammer before use in an online manner, quickly locate the fault position, and improve the maintenance efficiency. The present invention adopts a multi-channel design, which can handle the ignition and self-check tasks of multiple jammers, can simultaneously start multiple jammers for interference according to different strategies, increase the probability of successful defense, has strong system flexibility, can select different numbers of jammers for ignition, and adapt to various complex scenario requirements. The present invention has a two-stage control reliable ignition circuit, which can accurately control the ignition time, reduce the risk of misfiring, effectively prevent the occurrence of misfiring events, and ensure the safety of personnel and equipment.

[0056] At the same time, the present invention integrates the ignition and self-check functions, improves the stability and reliability of the system, discovers and eliminates faults in time through the self-check function, and together with the reliable ignition circuit, ensures the stable operation of the jammer system during use. The fast self-check and accurate ignition improve the interference effect of the jammer.

[0057] The above is only the preferred implementation mode of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A multi-channel jammer ignition and self-checking system, characterized in that: It includes a control unit circuit, an ignition and self-test circuit, a power supply circuit and an interface unit circuit; the interface unit circuit exchanges information with the host computer through the Ethernet interface and receives the control strategy sent by the host computer; the control unit circuit is connected to the interface unit circuit, the ignition and self-test circuit, sends out a self-test or ignition signal, and collects ignition and self-test current signals; the power supply circuit is connected to other circuits for power supply; the jammer ignition and self-test circuit is used to switch the self-test / ignition circuit to realize the ignition and self-test of multiple jammers, self-test the jammers, and collect the ignition current or self-test current and upload it to the control unit circuit to provide auxiliary judgment for the jammer situation.

2. The multi-channel jammer ignition and self-checking system according to claim 1 is characterized in that: The jammer ignition and self-checking circuit includes an input unit, a DC-DC converter, an output filter unit, a sampling and feedback unit, and a MOS tube control unit; the input unit, the DC-DC converter, the output filter unit, and the sampling and feedback unit are connected in sequence; the input voltage VIN_GRD of the input unit is 12V and enters the circuit through the filter FB1; three capacitors C1, C2, and C3 are connected in parallel to the input end of the input unit to filter out high-frequency noise in the input voltage and ensure the stability of the input voltage.

3. The multi-channel jammer ignition and self-checking system according to claim 2 is characterized in that: The DC-DC converter is U1, wherein in the self-test circuit, U1 uses XL3001E1; in the ignition circuit, U1 uses XL3003E1; the VIN pin of U1 is connected to the input voltage VIN_GRD; the VC pin of U1 is connected to the capacitor C3, the GND pin of U1 is connected to the ground, the SW pin of U1 is connected to the inductor L1 and the diode D1 for switch control, and the CS pin of U1 is connected to the feedback resistor R3 for current detection.

4. The multi-channel jammer ignition and self-checking system according to claim 3 is characterized in that: The output filter unit includes an inductor L1, output capacitors C4 and C5, wherein the inductor L1 is connected between the SW pin and the output end of U1 for energy storage and filtering; the output capacitors C4 and C5 are connected in parallel at the output end of U1 for further filtering high-frequency ripples to ensure the stability of the output voltage.

5. The multi-channel jammer ignition and self-checking system according to claim 4 is characterized in that: The sampling and feedback unit includes a sampling resistor R1, feedback resistors R2 and R3, and a diode D1, wherein the sampling resistor R1 is connected to the output end of U1, and is used to detect the output current and convert the current signal into a voltage signal; one end of R2 is connected to the CS pin of U1, and the other end is connected to the resistor R3, the feedback resistor R3 is used to set the output current value, and R2 is used for current detection feedback; the anode of the diode D1 is connected to the GND pin of U1, and the cathode is connected to the SW pin of U1. The diode D1 is used as a rectifier diode to protect the circuit from the influence of reverse current.

6. The multi-channel jammer ignition and self-checking system according to claim 5, characterized in that: The MOS tube control unit includes a PMOS tube Q1, an NMOS tube Q3, an anti-reverse diode D2, and control transistors Q2 and Q4; wherein the PMOS tube Q1 is a positive switch tube, used to control the conduction and shutdown of the positive electrode; the gate of Q1 is connected to the GRD_C_EN+ pin of the MCU through a control circuit composed of R4, R5, R6, R7 and C6; when the MCU outputs a high level, Q1 is turned on; the control transistor Q2 is used to drive the gate of the PMOS tube Q1; the anti-reverse diode D2 is connected to the positive electrode to prevent the current from flowing in the reverse direction; the NMOS tube Q3 is the negative electrode The switch tube is used to control the conduction and shutdown of the negative electrode; the gate of Q3 is connected to the GRD_C_EN- pin of the MCU through the control circuit composed of R8, R9, R10 and C7; when the MCU outputs a low level, Q3 is turned on; the control transistor Q4 is used to drive the gate of the NMOS tube Q3; the output terminals of the output unit are GRD_BIT+, GRD_I+, and GRD_I-, GRD_BIT+ and GRD_I+ are the positive output terminals, and GRD_I- is the negative output terminal; when the positive and negative electrodes are turned on at the same time, the output terminal is turned on to perform self-test or ignition operation.

7. A method based on the multi-channel jammer ignition and self-checking system according to any one of claims 1 to 6, characterized in that: Including self-test method, the specific steps are: The self-check command is sent to all the bullet positions in a polling manner. The resistance value of the interference bullet is measured by a safe small current to determine the status of the interference bullet. If the measured resistance value is within the normal range, the bullet position is marked as having a bullet and moves to the next bullet position for self-check. The command is sent to the same bullet position up to three times until the bullet check is successful. If the normal resistance value information is not received for the third time, the bullet position is marked as empty. After the circuit completes the self-check work for all the bullet positions, the self-check results are uploaded to the controller.

8. The method according to claim 7, characterized in that It includes an ignition method, and the specific steps are: selecting a number according to the need to realize single-shot firing, continuous firing and salvo firing; In single-shot mode, select any jammer number from 1 to n. After the launch, the ignition and self-check circuit will actively report the status information and feedback whether the launch is successful. If the circuit does not report the jammer status information within the preset time, it will prompt that the current launch channel has timed out. In the continuous firing mode, you can select any optional number from 1 to n jammers, set the firing interval, and the circuit will fire in sequence from small to large according to the set firing time interval to achieve continuous firing of jammers; after firing, the circuit will actively report the jammer status information and feedback whether the firing is successful. If the circuit fails to report the jammer status information within the preset time, it will prompt that the current firing channel has timed out; In the salvo mode, any jammer number from 1 to n can be selected. After the salvo is fired, the circuit will actively report the jammer status information and feedback whether the launch is successful. If the circuit does not report the jammer status information within the preset time, it will prompt that the current launch channel has timed out.

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