Aerial bomb fuze dual-system state detection circuit

Abstract

The invention discloses an aerial bomb fuze dual-system state detection circuit, which relates to the field of signal detection and comprises an electric detonator detonation monitoring module and an electric detonator unprotection monitoring module. The electric detonator detonating monitoring module comprises two electric detonator detonating monitoring units, and the two electric detonator detonating monitoring units are the same in structure. Compared with the prior art, the electric detonator detonating monitoring module and the electric detonator de-protection monitoring module both adopt a double-path optocoupler primary and secondary side parallel detection structure; the two detection switches connected in parallel are arranged on the circuit, whether the corresponding detection switches are closed or not is judged through detonation of the electric detonators and closing of the de-protection contact switches, voltage information is fed back to the missile-borne recorder, the working states of the dual systems (a de-protection system and a detonation system) are monitored at the same time, the circuit structure is simple, implementation is easy, and the component cost is low; and the optical coupler is used for isolation, so that interference between working states of double systems can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the field of signal detection, in particular to a dual-system state detection circuit for an aerial bomb fuze. Background Art

[0002] The aerial bomb fuze is an important component of an aerial bomb. It determines when and how the bomb explodes, and has a crucial impact on the bomb's destructive effect and combat effectiveness.

[0003] Traditional aerial bomb fuzes use a single system for arming and detonating, which has the following defects: as long as an abnormality occurs in the arming, detonation or status detection, the aerial bomb system may cause abnormal operation, which poses a certain safety risk and needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a dual-system state detection circuit for an aerial bomb fuze to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A dual-system state detection circuit for an aerial bomb fuze, comprising an electric detonator detonation monitoring module and an electric detonator release monitoring module; The electric detonator initiation monitoring module includes two electric detonator initiation monitoring units, the two electric detonator initiation monitoring units have the same structure, and the two electric detonator initiation monitoring units are connected in parallel and then connected to the bomb-borne recorder; The electric detonator detonation monitoring unit is used to monitor the switch status of the electric detonator detonation contact to feed back the electric detonator detonation information to the onboard recorder; The electric detonator release monitoring module includes two electric detonator release monitoring units, the two electric detonator release monitoring units have the same structure, and the two electric detonator release monitoring units are connected in parallel and then connected to the bomb-borne recorder; The detonator release monitoring unit is used to monitor the switch status of the detonator release contacts to feed back the detonator release information to the onboard recorder.

[0006] As a further solution of the present invention: the electric detonator initiation monitoring unit and the electric detonator release monitoring unit have the same structure, and the difference lies in that when the electric detonator initiation contact switch is closed, the detection switch of the electric detonator initiation monitoring unit is correspondingly closed, and when the electric detonator release contact switch is closed, the detection switch of the electric detonator release monitoring unit is correspondingly closed.

[0007] As a further solution of the present invention: the electric detonator initiation monitoring unit includes a resistor R1, a detection switch LG1, a resistor R7, an optocoupler U1, a resistor R11, a diode D1, and a resistor R5. One end of the resistor R1 is connected to the positive electrode of the power supply V1, and the negative electrode of the power supply V1 is grounded. The other end of the resistor R1 is connected to one end of the detection switch LG1, and the other end of the detection switch LG1 is connected to one end of the resistor R7 and pin 1 of the optocoupler U1. The other end of the resistor R7 is grounded, pin 2 of the optocoupler U1 is grounded, pin 15 of the optocoupler U1 is connected to one end of the resistor R11, and the other end of the resistor R11 is grounded, pin 16 of the optocoupler U1 is connected to the negative electrode of the diode D1, the positive electrode of the diode D1 is connected to one end of the resistor R5 and the onboard recorder, and the other end of the resistor R5 is connected to the power supply V3.

[0008] As a further solution of the present invention: when the electric detonator detonation contact switch is closed, when at least one of the detection switches of the two electric detonator detonation monitoring units is closed, the voltage fed back to the onboard recorder changes.

[0009] As a further solution of the present invention: the electric detonator release monitoring unit includes a resistor R3, a detection switch ZTJC1, a resistor R9, an optocoupler U1, a resistor R13, a diode D4, and a resistor R6. One end of the resistor R3 is connected to the positive electrode of the power supply V2, and the negative electrode of the power supply V2 is grounded. The other end of the resistor R3 is connected to one end of the detection switch ZTJC1, and the other end of the detection switch ZTJC1 is connected to one end of the resistor R9 and pin No. 5 of the optocoupler U1. The other end of the resistor R9 is grounded, pin No. 6 of the optocoupler U1 is grounded, pin No. 11 of the optocoupler U1 is connected to one end of the resistor R13, and the other end of the resistor R13 is grounded, pin No. 12 of the optocoupler U1 is connected to the negative electrode of the diode D4, the positive electrode of the diode D4 is connected to one end of the resistor R6 and the onboard recorder, and the other end of the resistor R6 is connected to the power supply V3.

[0010] As a further solution of the present invention: when the electric detonator release contact switch is closed, when at least one of the detection switches of the two electric detonator release monitoring units is closed, the voltage fed back to the onboard recorder changes.

[0011] As a further solution of the present invention: two electric detonator initiation monitoring units and two electric detonator release monitoring units share one optical coupler U1.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the electric detonator initiation monitoring module and the electric detonator release monitoring module of the present invention both adopt a dual-path optocoupler primary and secondary parallel detection structure, and are both provided with two parallel detection switches. When the electric detonator initiation and release contact switches are closed, the corresponding detection switches are closed, and voltage information is fed back to the on-board recorder, while the working status of the dual systems (release system, initiation system) is monitored. The circuit structure is simple, easy to implement, and the component cost is low; the use of optocouplers for isolation can effectively avoid interference between the working states of the dual systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a circuit diagram of a dual-system state detection circuit for an aerial bomb fuze.

[0014] Figure 2 It is a first voltage signal diagram of the detection switch and common points A and B.

[0015] Figure 3 It is a second voltage signal diagram of the detection switch and common points A and B.

[0016] Figure 4 It is a third voltage signal diagram of the detection switch and common points A and B.

[0017] Figure 5 This is a fourth voltage signal diagram of the detection switch and common points A and B.

[0018] Figure 6 This is a fifth voltage signal diagram of the detection switch and common points A and B.

[0019] Figure 7 This is a sixth voltage signal diagram of the detection switch and common points A and B.

[0020] Figure 8 This is the seventh voltage signal diagram of the detection switch and common points A and B.

[0021] Fig. 9 This is the eighth voltage signal diagram of the detection switch and common points A and B.

[0022] Fig.10 This is the ninth voltage signal diagram of the detection switch and common points A and B.

[0023] Fig.11 This is the tenth voltage signal diagram of the detection switch and common points A and B.

[0024] Fig.12 This is the eleventh voltage signal diagram of the detection switch and common points A and B.

[0025] Fig.13 This is the twelfth voltage signal diagram of the detection switch and common points A and B.

[0026] Fig.14 This is the thirteenth voltage signal diagram of the detection switch and common points A and B.

[0027] Fig.15 This is the fourteenth voltage signal diagram of the detection switch and common points A and B.

[0028] Fig.16 This is the fifteenth voltage signal diagram of the detection switch and common points A and B.

[0029] Fig.17 This is the sixteenth voltage signal diagram of the detection switch and common points A and B. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] See also Figure 1 , a dual-system state detection circuit for an aerial bomb fuze, including an electric detonator initiation monitoring module and an electric detonator release monitoring module; The electric detonator initiation monitoring module includes two electric detonator initiation monitoring units, the two electric detonator initiation monitoring units have the same structure, and the two electric detonator initiation monitoring units are connected in parallel and then connected to the bomb-borne recorder; The electric detonator detonation monitoring unit is used to monitor the switch status of the electric detonator detonation contact to feed back the electric detonator detonation information to the onboard recorder; The electric detonator release monitoring module includes two electric detonator release monitoring units, the two electric detonator release monitoring units have the same structure, and the two electric detonator release monitoring units are connected in parallel and then connected to the bomb-borne recorder; The detonator release monitoring unit is used to monitor the switch status of the detonator release contacts to feed back the detonator release information to the onboard recorder.

[0032] In this example: See Figure 1 The electric detonator initiation monitoring unit and the electric detonator release monitoring unit have the same structure. The difference lies in that when the electric detonator initiation contact switch is closed, the detection switch of the electric detonator initiation monitoring unit is closed accordingly. When the electric detonator release contact switch is closed, the detection switch of the electric detonator release monitoring unit is closed accordingly.

[0033] The detonator initiation contact switch and the detection switches LG1 and LG2 of the detonator initiation monitoring unit are similar to three-pole double-throw switches. When one is pressed, the other switches are pressed accordingly. The detonator release contact switch and the detection switches ZTJC1 and ZTJC2 of the detonator release monitoring unit have the same closing principle.

[0034] In this example: See Figure 1 The electric detonator detonation monitoring unit includes a resistor R1, a detection switch LG1, a resistor R7, an optocoupler U1, a resistor R11, a diode D1, and a resistor R5. One end of the resistor R1 is connected to the positive electrode of the power supply V1, and the negative electrode of the power supply V1 is grounded. The other end of the resistor R1 is connected to one end of the detection switch LG1, and the other end of the detection switch LG1 is connected to one end of the resistor R7 and pin 1 of the optocoupler U1. The other end of the resistor R7 is grounded, pin 2 of the optocoupler U1 is grounded, pin 15 of the optocoupler U1 is connected to one end of the resistor R11, and the other end of the resistor R11 is grounded. Pin 16 of the optocoupler U1 is connected to the negative electrode of the diode D1, the positive electrode of the diode D1 is connected to one end of the resistor R5 and the bomb-borne recorder, and the other end of the resistor R5 is connected to the power supply V3.

[0035] When the detonating contact switch of the electric detonator is disconnected, the detection switch LG1 is disconnected accordingly, and the optocoupler U1 is cut off. At this time, the voltage at the common point A is U_high≈V3.

[0036] After the electric detonator detonating contact switch is closed, the detection switch LG1 is closed accordingly, the built-in light emitting diode of the optocoupler U1 is turned on, and the built-in phototransistor is turned on, so that the power supply V3, resistor R5, diode D1, the built-in phototransistor of the optocoupler U1, resistor R11, and the ground terminal form a loop, and the voltage at the common point A drops, and the voltage is U_low≈(V3*R11) / (R5+R11).

[0037] Therefore, the onboard recorder determines the working status of the electric detonator based on the input voltage signal.

[0038] Two electric detonator detonation monitoring units are provided. When any one of the detection switches LG1 and LG2 is operating normally, the working status of the electric detonator can be correctly fed back to the on-board recorder.

[0039] In this example: See Figure 1 When the electric detonator detonation contact switch is closed, when at least one of the detection switches of the two electric detonator detonation monitoring units is closed, the voltage fed back to the on-board recorder changes (the voltage at the common point A changes).

[0040] In this example: See Figure 1The electric detonator release monitoring unit includes a resistor R3, a detection switch ZTJC1, a resistor R9, an optocoupler U1, a resistor R13, a diode D4, and a resistor R6. One end of the resistor R3 is connected to the positive electrode of the power supply V2, and the negative electrode of the power supply V2 is grounded. The other end of the resistor R3 is connected to one end of the detection switch ZTJC1, and the other end of the detection switch ZTJC1 is connected to one end of the resistor R9 and pin 5 of the optocoupler U1. The other end of the resistor R9 is grounded, and pin 6 of the optocoupler U1 is grounded. Pin 11 of the optocoupler U1 is connected to one end of the resistor R13, and the other end of the resistor R13 is grounded. Pin 12 of the optocoupler U1 is connected to the negative electrode of the diode D4, and the positive electrode of the diode D4 is connected to one end of the resistor R6 and the onboard recorder. The other end of the resistor R6 is connected to the power supply V3.

[0041] The working principle of the electric detonator release monitoring unit is similar to that of the electric detonator initiation monitoring unit. When the electric detonator release contact switch is disconnected, the detection switch ZTJC1 is disconnected, and the voltage at the common point B is U_high≈V3.

[0042] After the electric detonator release contact switch is closed, the detection switch ZTJC1 is closed accordingly, and the voltage is U_low≈(V3*R13) / (R6+R13).

[0043] In this example: See Figure 1 When the electric detonator release contact switch is closed, when at least one of the detection switches of the two electric detonator release monitoring units is closed, the voltage fed back to the onboard recorder changes (the voltage at the common point B changes).

[0044] The above description uses the feedback of the closing of the detonator detonating contact switch and the release contact switch when the voltage drops. In practice, the closing of the detonator detonating contact switch and the release contact switch can also be fed back when the voltage rises. For example, the common point A is set at pins 13 and 15 of the optocoupler U1, and the common point B is set at pins 9 and 11 of the optocoupler U1.

[0045] In this example: See Figure 1 The two electric detonator initiation monitoring units and the two electric detonator release monitoring units share one optical coupler U1.

[0046] As shown in the figure, the optocoupler U1 has a total of 16 pins, and four pins can meet the use requirements of a detection unit. The optocoupler U1 has various models, such as the 16-pin package of TLP521, the 16-pin package of PC847, and the 16-pin package of PS2501.

[0047] The relationship between the onboard recorder and the detection switch of the dual-system status detection circuit of the aerial bomb fuze is shown in the following table: Table 1 Relationship between the detection of the missile-borne recorder and the detection switch ; Sixteen working states correspond to Figures 2 to 17 The corresponding attached figure, Figures 2 to 17 In the accompanying drawings, from top to bottom are respectively the voltage signal of ZTJC2, the voltage signal of ZTJC1, the voltage signal of LG2, the voltage signal of LG1, the voltage signal of common point B, and the voltage signal of common point A.

[0048] exist Figure 2 In the first working mode, the electric detonator detonation contact switches LG1 and LG2 and the release contact switches ZTJC1 and ZTJC2 are all disconnected. At this time, the common points A and B maintain a high level and do not feed back a low level to the DLG pin and JB pin of the control chip of the onboard recorder. At this time, the dual-path of the bomb fuze is abnormal and the bomb cannot be detonated normally.

[0049] exist Figure 3 In the second working mode, the detonator detonation contact switches LG1, LG2 and the release contact switch ZTJC1 are all disconnected, and the release contact switch ZTJC2 is closed. At this time, the common point A maintains a high level, and the common point B maintains a low level, and the low level is fed back to the JB pin of the control chip of the onboard recorder. At this time, the electric detonator of the bomb fuze is abnormal and cannot detonate the bomb normally.

[0050] exist Figure 4 In the third working mode, the detonator detonating contact switch LG1 and the release contact switches ZTJC1 and ZTJC2 are all disconnected, and the detonator detonating contact switch LG2 is closed. At this time, the common point A maintains a low level, and the common point B maintains a high level, and the low level is fed back to the DLG pin of the control chip of the missile-borne recorder. At this time, the release state of the bomb fuze is abnormal, and the bomb cannot be detonated normally.

[0051] exist Figure 5 In the fourth working mode, the electric detonator detonating contact switch LG1 and the release contact switch ZTJC1 are both disconnected, and the electric detonator detonating contact switches LG2 and ZTJC2 are closed. At this time, the common point A maintains a low level, and the common point B maintains a low level, and the low level is fed back to the DLG pin and JB pin of the control chip of the missile-borne recorder. At this time, the bomb fuze works normally and can detonate the bomb normally.

[0052] exist Figure 6 In the fifth working mode, the detonator detonating contact switches LG1, LG2 and release contact switch ZTJC2 are all disconnected, and the detonator detonating contact switch ZTJC1 is closed. At this time, the common point A maintains a high level, and the common point B maintains a low level, and the low level is fed back to the JB pin of the control chip of the onboard recorder. At this time, the detonator of the bomb fuze is abnormal and cannot detonate the bomb normally.

[0053] exist Figure 7In the sixth working mode, the detonator detonation contact switches LG1 and LG2 are both disconnected, and the release contact switches ZTJC1 and ZTJC2 are both closed. At this time, the common point A maintains a high level, and the common point B maintains a low level, and the low level is fed back to the JB pin of the control chip of the missile-borne recorder. At this time, the electric detonator of the bomb fuze is abnormal and cannot detonate the bomb normally.

[0054] exist Figure 8 In the 7th working mode, the detonator initiating contact switch LG2 and the release contact switch ZTJC1 are both closed, and the detonator initiating contact switch LG1 and the release contact switch ZTJC2 are both disconnected. At this time, the common point A maintains a low level, and the common point B maintains a low level, and the low level is fed back to the DLG pin and JB pin of the control chip of the onboard recorder. At this time, the bomb fuze works normally and can detonate the bomb normally.

[0055] exist Fig. 9 In the 8th working mode, the electric detonator detonating contact switch LG2 and the release contact switches ZTJC1 and ZTJC2 are all closed, and the electric detonator detonating contact switch LG1 is disconnected. At this time, the common point A maintains a low level, and the common point B maintains a low level, and the low level is fed back to the DLG pin and JB pin of the control chip of the missile-borne recorder. At this time, the bomb fuze works normally and can detonate the bomb normally.

[0056] exist Fig.10 In the 9th working mode, the electric detonator detonating contact switch LG2 and the release contact switches ZTJC1 and ZTJC2 are all disconnected, and the electric detonator detonating contact switch LG1 is closed. At this time, the common point A maintains a low level, and the common point B maintains a low level, and the low level is fed back to the DLG pin of the control chip of the onboard recorder. At this time, the release state of the bomb fuze is abnormal and the bomb cannot be detonated normally.

[0057] exist Fig.11 In the 10th working mode, the electric detonator detonating contact switch LG2 and the release contact switch ZTJC1 are both disconnected, and the electric detonator detonating contact switch LG1 and the release contact switch ZTJC2 are both closed. At this time, the common point A maintains a low level, and the common point B maintains a low level, and the low level is fed back to the DLG pin and JB pin of the control chip of the onboard recorder. At this time, the bomb fuze works normally and can detonate the bomb normally.

[0058] exist Fig.12 In the 11th working mode, the electric detonator detonation contact switches LG2 and LG1 are closed, and the release contact switches ZTJC1 and ZTJC2 are open. At this time, the common point A maintains a low level, and the common point B maintains a high level, and the low level is fed back to the DLG pin of the control chip of the missile-borne recorder. At this time, the release state of the bomb fuze is abnormal and the bomb cannot be detonated normally.

[0059] exist Fig.13 In the 12th working mode, the electric detonator detonation contact switches LG2, LG1 and the release contact switch ZTJC2 are all closed, and the release contact switch ZTJC1 is disconnected. At this time, the common point A maintains a low level, the common point B maintains a low level, and the low level is fed back to the DLG pin and JB pin of the control chip of the onboard recorder. At this time, the bomb fuze works normally and can detonate the bomb normally.

[0060] exist Fig.14 In the 13th working mode, the electric detonator detonating contact switch LG1 and the release contact switch ZTJC1 are both closed, and the electric detonator detonating contact switch LG2 and the release contact switch ZTJC2 are both disconnected. At this time, the common point A maintains a low level, and the common point B maintains a low level. The low level is fed back to the DLG pin and JB pin of the control chip of the onboard recorder. At this time, the bomb fuze works normally and can detonate the bomb normally.

[0061] exist Fig.15 In the 14th working mode, the electric detonator detonating contact switch LG1, the release contact switches ZTJC1 and ZTJC2 are all closed, and the electric detonator detonating contact switch LG2 is disconnected. At this time, the common point A maintains a low level, the common point B maintains a low level, and the low level is fed back to the DLG pin and JB pin of the control chip of the onboard recorder. At this time, the bomb fuze works normally and can detonate the bomb normally.

[0062] exist Fig.16 In the 15th working mode, the electric detonator detonation contact switch LG1 and the release contact switch ZTJC1 are both closed, and the release contact switch ZTJC2 is disconnected. At this time, the common point A maintains a low level, the common point B maintains a low level, and the low level is fed back to the DLG pin and JB pin of the control chip of the onboard recorder. At this time, the bomb fuze works normally and can detonate the bomb normally.

[0063] exist Fig.17 In the 16th working mode, the electric detonator detonation contact switch LG1 and the release contact switches ZTJC1 and ZTJC2 are all closed. At this time, the common point A maintains a low level, and the common point B maintains a low level. The low level is fed back to the DLG pin and JB pin of the control chip of the missile-borne recorder. At this time, the bomb fuze works normally and can detonate the bomb normally.

[0064] The invention improves the reliability of the bomb fuze, adopts dual-system release and detonation detection, and as long as one of the dual systems works reliably, it can avoid the problem of blind bombing caused by abnormal bomb operation, ensuring that the bomb can be detonated normally.

[0065] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dual-system state detection circuit for an aerial bomb fuze, characterized in that: The dual-system state detection circuit of the aerial bomb fuze includes an electric detonator detonation monitoring module and an electric detonator release monitoring module; The electric detonator initiation monitoring module includes two electric detonator initiation monitoring units, the two electric detonator initiation monitoring units have the same structure, and the two electric detonator initiation monitoring units are connected in parallel and then connected to the bomb-borne recorder; The electric detonator detonation monitoring unit is used to monitor the switch status of the electric detonator detonation contact to feed back the electric detonator detonation information to the onboard recorder; The electric detonator release monitoring module includes two electric detonator release monitoring units, the two electric detonator release monitoring units have the same structure, and the two electric detonator release monitoring units are connected in parallel and then connected to the bomb-borne recorder; The detonator release monitoring unit is used to monitor the switch status of the detonator release contacts to feed back the detonator release information to the onboard recorder.

2. The dual-system state detection circuit for bomb fuze according to claim 1 is characterized in that: The electric detonator initiation monitoring unit and the electric detonator release monitoring unit have the same structure. The difference lies in that when the electric detonator initiation contact switch is closed, the detection switch of the electric detonator initiation monitoring unit is closed accordingly, and when the electric detonator release contact switch is closed, the detection switch of the electric detonator release monitoring unit is closed accordingly.

3. The aerial bomb fuze dual system state detection circuit according to claim 1 or 2, characterized in that: The electric detonator initiation monitoring unit includes a resistor R1, a detection switch LG1, a resistor R7, an optocoupler U1, a resistor R11, a diode D1, and a resistor R5. One end of the resistor R1 is connected to the positive electrode of the power supply V1, and the negative electrode of the power supply V1 is grounded. The other end of the resistor R1 is connected to one end of the detection switch LG1, and the other end of the detection switch LG1 is connected to one end of the resistor R7 and pin 1 of the optocoupler U1. The other end of the resistor R7 is grounded, pin 2 of the optocoupler U1 is grounded, pin 15 of the optocoupler U1 is connected to one end of the resistor R11, and the other end of the resistor R11 is grounded. Pin 16 of the optocoupler U1 is connected to the negative electrode of the diode D1, the positive electrode of the diode D1 is connected to one end of the resistor R5 and the onboard recorder, and the other end of the resistor R5 is connected to the power supply V3.

4. The aerial bomb fuze dual system state detection circuit according to claim 3, characterized in that: When the electric detonator detonation contact switch is closed and at least one of the detection switches of the two electric detonator detonation monitoring units is closed, the voltage fed back to the onboard recorder changes.

5. The aerial bomb fuze dual system state detection circuit according to claim 1 or 2, characterized in that: The electric detonator release monitoring unit includes a resistor R3, a detection switch ZTJC1, a resistor R9, an optocoupler U1, a resistor R13, a diode D4, and a resistor R6. One end of the resistor R3 is connected to the positive electrode of the power supply V2, and the negative electrode of the power supply V2 is grounded. The other end of the resistor R3 is connected to one end of the detection switch ZTJC1, and the other end of the detection switch ZTJC1 is connected to one end of the resistor R9 and pin 5 of the optocoupler U1. The other end of the resistor R9 is grounded, pin 6 of the optocoupler U1 is grounded, pin 11 of the optocoupler U1 is connected to one end of the resistor R13, and the other end of the resistor R13 is grounded. Pin 12 of the optocoupler U1 is connected to the negative electrode of the diode D4, the positive electrode of the diode D4 is connected to one end of the resistor R6 and the onboard recorder, and the other end of the resistor R6 is connected to the power supply V3.

6. The aerial bomb fuze dual system state detection circuit according to claim 5, characterized in that: When the electric detonator release contact switch is closed and at least one of the detection switches of the two electric detonator release monitoring units is closed, the voltage fed back to the onboard recorder changes.

7. The aerial bomb fuze dual system state detection circuit according to any one of claim 1, characterized in that: Two electric detonator initiation monitoring units and two electric detonator release monitoring units share one optical coupler U1.

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