阅读说明：本技术 一种基于防拆自毁的水雷引信保密装置及保密方法 (Anti-dismantling self-destruction based mine detonator secrecy device and secrecy method ) 是由 王伟 龙小民 刘晓东 汪小亚 黄鹏 曹振宇 于 2020-12-04 设计创作，主要内容包括：本发明涉及一种基于防拆自毁的水雷引信保密装置及保密方法。保密装置其结构包括头盖组、模盒架、微动开关及目标探测装置,目标探测装置包含值更指控模块、防拆模块和水雷引信其他数字电路模块,附件为一个短路插头和一个机械限位装置；保密方法为通过微动开关控制防拆电路上电和掉电,当目标探测装置安装到头盖组内时,通过头盖组滑轨压下微动开关弹片,开关断开,防拆电路掉电；当目标探测装置从头盖组内取出时,微动开关弹片弹开,开关接通,防拆电路上电。本发明采用防拆电路配合判断方法检测水雷引信系统的目标探测装置是否被意外拆卸,使用纯硬件逻辑检测,判断正确率高,且该保密方法结构简单,易于在水雷头部的狭小空间内实现。(The invention relates to a mine detonator secrecy device and a mine detonator secrecy method based on anti-dismantling self-destruction. The structure of the security device comprises a head cover group, a mold box frame, a microswitch and a target detection device, wherein the target detection device comprises a value change instruction control module, an anti-disassembly module and other digital circuit modules of a mine fuse, and accessories comprise a short circuit plug and a mechanical limiting device; the security method is that the power-on and power-off of the anti-dismantling circuit are controlled by the microswitch, when the target detection device is installed in the head cover group, the microswitch elastic sheet is pressed down by the sliding rail of the head cover group, the switch is disconnected, and the anti-dismantling circuit is powered off; when the target detection device is taken out from the head cover group, the elastic sheet of the microswitch bounces off, the switch is switched on, and the anti-dismantling circuit is electrified. The invention adopts the anti-disassembly circuit to match with the judgment method to detect whether the target detection device of the mine detonator system is disassembled accidentally, uses pure hardware logic detection to detect, has high judgment accuracy, and has simple structure and easy realization in the narrow space of the mine head.)

1. The utility model provides a secret device of mine detonator based on prevent tearing open self-destruction which characterized in that: it comprises a mine head cover group, a mold box frame, a microswitch and a target detection device. The target detection device comprises a value indicating control module, an anti-dismantling module and other digital circuit modules of a mine fuse, and accessories are a short circuit plug and a mechanical limiting device; wherein prevent tearing open the circuit, prevent tearing open the battery and set up on preventing tearing open the module, micro-gap switch installs in the die box frame spout, prevents tearing open the battery and is connected to micro-gap switch through interior even board and wire, and the reconnection is to the value and indicates accuse module.

2. The anti-tamper self-destruction based mine detonator secrecy device according to claim 1, wherein: the anti-dismantling circuit is only powered by an anti-dismantling battery, the voltage of the anti-dismantling battery is 3V-3.8V, the discharging capacity of the anti-dismantling circuit meets the requirement that the anti-dismantling circuit and the numerical control module work simultaneously, and the battery capacity meets the requirement that the anti-dismantling action is carried out for 200 times.

3. The anti-tamper self-destruction based mine detonator secrecy device according to claim 1, wherein: the anti-disassembly circuit has a power supply management function, and outputs the output voltage of the battery to 3.0V and outputs the output voltage to the value change instruction control module.

4. The anti-tamper self-destruction based mine detonator secrecy device according to claim 1, wherein: the mechanical limiting device can limit the micro switch, so that the micro switch is in an off state, and the anti-dismantling circuit does not output an anti-dismantling signal.

5. The anti-tamper self-destruction based mine detonator secrecy device according to claim 1, wherein: the mold box frame is arranged under the state of the mine head cover group, and the microswitch is pressed to be in a disconnected state.

6. The anti-tamper self-destruction based mine detonator secrecy device according to claim 1, wherein: the anti-disassembly signal is pulled up to be high level inside the anti-disassembly module, and is guided to the rear switching module through the inner connecting plate, the front switching module and the platform connecting cable, and the anti-disassembly signal is connected with the shell ground on the rear switching module.

7. A security method based on the security device of the tamper-proof self-destruction mine detonator as claimed in any one of claims 1 to 6, characterized in that: the method comprises three working steps of fuze debugging, fuze assembly and mine service; when the fuse is debugged, the micro switch is limited by the mechanical limiting device and is always in a disconnected state, and the anti-dismantling circuit does not output an anti-dismantling signal; when the fuse is assembled, the microswitch is in a connection state, a short-circuit plug is required to be externally connected, the short-circuit plug connects the anti-disassembly signal to the battery ground, and the value indicates that the control module is electrified but does not output a torpedo self-destruction instruction; when the mine works in service period, the micro switch is always in an off state, and the anti-dismantling circuit does not output an anti-dismantling signal.

8. The security method of claim 7, wherein: when the mine works normally, the target detection device is positioned in the head cover group, the micro switch elastic sheet is pressed down through the head cover group sliding rail, the switch is in an off state, and the power failure of the anti-dismantling circuit is avoided; when the mine is removed, the platform connecting cable is disconnected, namely the removal-preventing signal is disconnected with the shell, the target detection device is taken out from the head cover group, the microswitch shrapnel is bounced off, the switch is in a connection state, the removal-preventing battery is connected to the value more indicating module, the value more indicating module works and outputs a mine self-destruction instruction, and each fuse digital circuit module in the target detection device executes the self-destruction instruction and erases software in the memory.

9. The security method of claim 7, wherein: the anti-disassembly circuit has a power supply management function, and outputs the output voltage of the battery to 3.0V and outputs the output voltage to the value change instruction control module. When the anti-dismantling circuit is powered on, if the working power supply of the fuze system is not switched on, the anti-dismantling battery supplies power to the fuze system; and if the working power supply of the fuze system is switched on, isolating the power supply output of the anti-disassembly circuit.

Technical Field

The invention relates to the field of secrecy of mine fuzes, in particular to a mine fuze secrecy device and a mine fuze secrecy method based on disassembly and self-destruction prevention.

Background

The mine detonator system generally comprises a target detection device, a sound receiver, a depth sensor, a battery pack, a rear switching module, a connecting cable and the like; the target detection device comprises a mold box frame, an inner connecting plate, a value more control module, an identification module, a positioning module, a remote control module, a head cover connecting module, a front connecting module, a magnetic compass and the like. In the underwater service period of the mine, the depth sensor measures the depth of the platform in real time, the magnetic compass measures the attitude information of the platform, and the acoustic receiver measures the sound field signal of the target ship, so that the detection, identification, positioning and optimal attack point prediction of large and medium-sized water surface target ships are comprehensively realized, and after the attack target is determined, the target azimuth parameter and the attack command are sent to the fighting load. Therefore, the target detection device is the most core component of the mine, and once the target detection device is completely obtained, the action process of the mine detonator and related technical and tactical indexes can be obtained from the target detection device, so that the design of the detonator system needs to consider perfect security measures and prevent the occurrence of a divulgence result.

The traditional secret design of the mine detonator adopts a secret method for detecting the posture of a mine body, and the method is realized by an anti-dismantling circuit consisting of a triaxial accelerometer chip, a comparator and a follower. After the mine is launched by a ship or a submarine, the overall safety device is connected, the anchor system is separated from the mine platform, the fuse system is electrified and works, the mine enters the service period, the mine is in a vertical posture at the moment, and the anti-dismantling circuit outputs a low-level signal; in the period, if the depth sensor detects that the depth of the mine is too shallow and the accelerometer detects that the mine is in the lying posture, the mine is considered to float upwards or be salvaged accidentally, the risk of disclosure exists, the anti-dismantling circuit outputs a high-level anti-dismantling signal, the fuze system sends out a self-destruction instruction, and meanwhile software of each circuit module is erased. The secrecy method is suitable for the working condition that the mine is normally laid in water and a fuse system is electrified. When the mine laying system such as UUV is used for laying the mine, the laying failure occurs or the mine laying system is integrally captured, and the mine general protector does not act, the fuze system is not powered on, the anti-dismantling circuit cannot work, and the fuze anti-dismantling security function cannot be realized. Therefore, a secrecy method for identifying the disassembly state of the mine detonator by adopting the matching of the structure and the circuit is designed.

Disclosure of Invention

The invention discloses a security device and a security method for a mine detonator, which adopt a microswitch to detect whether a target detection device mould box frame is disassembled or not, and realize the security method for mine self-destruction and fuse software erasure.

The invention specifically adopts the following technical scheme:

a mine detonator secrecy device based on anti-disassembly self-destruction comprises a mine head cover group, a die box frame, a microswitch and a target detection device, wherein the target detection device comprises a value more control module, an anti-disassembly module and other digital circuit modules of a mine detonator, and accessories are a short circuit plug and a mechanical limiting device; wherein prevent tearing open the circuit, prevent tearing open the battery and set up on preventing tearing open the module, micro-gap switch installs in the die box frame spout, prevents tearing open the battery and is connected to micro-gap switch through interior even board and wire, and the reconnection is to the value and indicates accuse module. The power-on and power-off of the anti-dismantling circuit are controlled through the micro switch, when the target detection device is installed in the head cover group, the elastic sheet of the micro switch is pressed down through the sliding rail of the head cover group, the switch is in an off state, and the anti-dismantling circuit is powered off; when the target detection device is taken out from the head cover group, the elastic sheet of the microswitch bounces off, the switch is in a switch-on state, and the anti-dismounting circuit is electrified.

In addition, the anti-dismantling circuit is only powered by the anti-dismantling battery, the voltage of the anti-dismantling battery is 3V-3.8V, the discharging capacity of the anti-dismantling circuit meets the requirement that the anti-dismantling circuit and the numerical control module work simultaneously, and the capacity of the battery meets the requirement that the anti-dismantling action is carried out for 200 times.

The anti-disassembly circuit has a power supply management function, and outputs the output voltage of the battery to 3.0V and outputs the output voltage to the value change instruction control module. When the anti-dismantling circuit is powered on, if the working power supply of the fuze system is not switched on, the anti-dismantling battery supplies power to the fuze system; and if the working power supply of the fuze system is switched on, isolating the power supply output of the anti-disassembly circuit.

The mechanical limiting device can limit the micro switch, so that the micro switch is in an off state, and the anti-dismantling circuit does not output an anti-dismantling signal.

The mold box frame is arranged under the state of the mine head cover group, and the microswitch is pressed to be in a disconnected state.

The anti-disassembly signal is pulled up to be high level inside the anti-disassembly module, and is guided to the rear switching module through the inner connecting plate, the front switching module and the platform connecting cable, and the anti-disassembly signal is connected with the shell ground on the rear switching module.

A security method of a mine fuse security device based on anti-disassembly self-destruction comprises three working steps of fuse debugging, fuse assembly and mine service; when the fuse is debugged, the microswitch which is responsible for communicating the anti-dismantling circuit with the anti-dismantling battery is limited by the mechanical limiting device to be always in a disconnected state, and the anti-dismantling circuit does not output an anti-dismantling signal; when the fuse is assembled, the microswitch is in a connection state, a short-circuit plug is required to be externally connected, the short-circuit plug connects the anti-disassembly signal to the battery ground, and the value indicates that the control module is electrified but does not output a torpedo self-destruction instruction; when the mine works in service period, the micro switch is always in an off state, and the anti-dismantling circuit does not output an anti-dismantling signal.

Further, when the mine works normally in service: the target detection device is positioned in the head cover group, the microswitch elastic sheet is pressed down through the head cover group sliding rail, the switch is in a disconnected state, and the anti-dismantling circuit is powered off; when the mine is removed, the platform connecting cable is disconnected, namely the removal-preventing signal is disconnected with the shell, the target detection device is taken out from the head cover group, the microswitch shrapnel is bounced off, the switch is in a connection state, the removal-preventing battery is connected to the value more indicating module, the value more indicating module works and outputs a mine self-destruction instruction, and each fuse digital circuit module in the target detection device executes the self-destruction instruction and erases software in the memory.

Furthermore, the anti-disassembly circuit has a power management function, and outputs the output voltage of the battery to 3.0V and outputs the output voltage to the value change instruction control module. When the anti-dismantling circuit is powered on, if the working power supply of the fuze system is not switched on, the anti-dismantling battery supplies power to the fuze system; and if the working power supply of the fuze system is switched on, isolating the power supply output of the anti-disassembly circuit.

The invention adopts the anti-disassembly circuit to match with the judgment method to detect whether the target detection device of the mine detonator system is disassembled accidentally, uses pure hardware logic detection to detect, has high judgment accuracy, and has simple structure and easy realization in the narrow space of the mine head.

Drawings

Anti-disassembly structure of mine fuse mould box frame in figure 1

FIG. 2 is a schematic diagram of a tamper-evident circuit

Detailed Description

The following examples are given to illustrate embodiments of the present invention in detail and are not intended to limit the scope of the present invention in any way.

As shown in fig. 1, the anti-dismantling self-destruction mine detonator secrecy device comprises a mine head cover group 5, a mold box frame, a microswitch 2 and a target detection device 4, wherein the target detection device 4 comprises a value indicating module, an anti-dismantling module and other digital circuit modules of the mine detonator, and accessories are a short circuit plug and a mechanical limiting device; wherein prevent tearing open the circuit, prevent tearing open battery 7 and set up on preventing tearing open the module, micro-gap switch 2 installs in the diaphragm capsule frame spout, prevents tearing open battery 7 and is connected to micro-gap switch 2 through interconnector board and wire, and the reconnection is to the value and indicates accuse module. The power-on and power-off of the anti-dismantling circuit are controlled through the micro switch 2, when the target detection device 4 is installed in the head cover group, the elastic sheet of the micro switch 2 is pressed down through the sliding rail 1 of the head cover group, the switch is in an off state, and the anti-dismantling circuit is powered off; when the target detection device 4 is taken out of the head cover group, the elastic sheet of the microswitch 2 is bounced off, the switch is in a switch-on state, and the anti-dismantling circuit is electrified.

In addition, the anti-disassembly circuit is only powered by the anti-disassembly battery 7, the battery voltage of the anti-disassembly battery 7 is 3V-3.8V, the discharging capacity of the anti-disassembly circuit meets the requirement that the anti-disassembly circuit and the numerical control module work simultaneously, and the battery capacity meets the requirement that the anti-disassembly action is carried out for 200 times.

The anti-disassembly circuit has a power supply management function, and outputs the output voltage of the battery to 3.0V and outputs the output voltage to the value change instruction control module. When the anti-dismantling circuit is powered on, if the working power supply of the fuze system is not switched on, the anti-dismantling battery 7 supplies power to the fuze system; and if the working power supply of the fuze system is switched on, isolating the power supply output of the anti-disassembly circuit.

Mechanical stop device can carry out spacingly to micro-gap switch 2 for micro-gap switch 2 is in the off-state, prevents tearing open the circuit and does not export and prevent tearing open the signal.

The mold box frame is arranged in the state of the torpedo head cover group 5, and the microswitch 2 is pressed to be in a disconnected state.

The anti-disassembly signal is pulled up to high level inside the anti-disassembly module, and is led to the rear switching module through the inner connecting plate, the front switching module and the platform connecting cable 6, and the anti-disassembly signal is connected with the shell ground on the rear switching module.

A security method of a mine fuse security device based on anti-disassembly self-destruction comprises three working steps of fuse debugging, fuse assembly and mine service; when the fuse is debugged, the micro switch 2 is limited by the mechanical limiting device and is always in a disconnected state, and the anti-dismantling circuit does not output an anti-dismantling signal; when the fuse is assembled, the microswitch 2 is in a connection state, a short-circuit plug is required to be externally connected, the anti-disassembly signal is connected to the battery ground by the short-circuit plug, and the value indicates that the control module is electrified but a torpedo self-destruction instruction is not output; when the mine works in service period, the microswitch 2 is always in an off state, and the anti-dismantling circuit does not output an anti-dismantling signal.

When the mine works normally in service: the target detection device 4 is arranged in the head cover group, the elastic sheet of the microswitch 2 is pressed down through the sliding rail 1 of the head cover group, the switch is in an off state, and the power failure of the anti-dismantling circuit is avoided; when the mine is removed, the platform connecting cable 6 is disconnected, namely the removal-preventing signal is disconnected with the shell, the target detection device 4 is taken out from the head group, the elastic sheet of the microswitch 2 is bounced off, the switch is in a connection state, the removal-preventing battery 7 is connected to the value replacement indicating module, the value replacement indicating module works and outputs a mine self-destruction instruction, and each fuse digital circuit module in the target detection device 4 executes the self-destruction instruction and erases software in the memory at the same time.

The anti-disassembly circuit has a power supply management function, and outputs the output voltage of the battery to 3.0V and outputs the output voltage to the value change instruction control module. When the anti-dismantling circuit is powered on, if the working power supply of the fuze system is not switched on, the anti-dismantling battery 7 supplies power to the fuze system; if the working power supply of the fuse system is connected, the power supply output of the anti-disassembly circuit is isolated, and the principle of the anti-disassembly circuit is shown in figure 2.

In debugging, testing and use by troops, the following should be noted:

1) if the fuse system working power supply is connected when the mould box frame is disassembled, the overall fuse protector is firstly disconnected to power down the fuse system, the platform connecting cable 6 is forbidden to be pulled down under the condition that the working power supply is connected, otherwise, the value indicating module detects the anti-disassembling signal and erases the software.

2) When debugging, experiment and army use, under the fuse working power supply disconnection condition, in order to prevent to export when dismantling the mold box frame and prevent tearing open the signal, need replace platform connecting cable 6 through the short-circuit plug and make to prevent tearing open the signal and be in the low level.

3) When the target detection device 4 is stored independently, in order to prevent the anti-dismantling circuit from being electrified, the elastic sheet of the microswitch 2 is pressed down through the mechanical limiting device, so that the switch is always in an off state, and the anti-dismantling circuit is powered off.

The method adopts the anti-disassembly circuit to match with the judgment method to detect whether the target detection device 4 of the mine detonator system is disassembled accidentally, uses pure hardware logic detection, has high judgment accuracy, and has simple structure and easy realization in the narrow space of the head of the mine.

The embodiments of the present invention have been described in detail with reference to the drawings and examples, but the present invention is not limited to the above embodiments, and can be modified or changed within the knowledge of those skilled in the art without departing from the spirit of the present invention.