A new safety logic design method for submarine-launched missile fuze

Abstract

The application relates to a new safety logic design method suitable for a submarine-launched missile fuze, which solves the problem that if noise and distortion of internal sensor output signals of the fuze occur, the fuze will be abnormally disarmed, and then the missile will be abnormally operated. 1) In the design technical requirements of the fuze, the fuze can perform bidirectional information interaction communication with a missile-borne computer, and can receive information transmitted by a water depth sensor, a water-out sensor and an accelerometer; 2) In the design technical requirements of the fuze, the fuze has a three-level disarm judging logic model, and a certain level of disarm logic must have a redundant condition, and when all the redundant conditions are met, the certain level of disarm can be normally disarmed; 3) The software related design is completed according to the communication protocol and the three-level disarm judging logic model. The application makes the fuze have a redundant information disarm judging function, ensures the working reliability of the fuze, and has simple algorithm and low cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of submarine-launched missiles, and particularly relates to a new safety logic design method suitable for submarine-launched missile fuzes. TECHNICAL BACKGROUND

[0002] In the past, the safety logic design method of submarine-launched missile fuzes usually has the following situations: 1) the single safety release mode of a certain level of the fuze lacks redundant conditions for safety release, resulting in reduced reliability of fuze release; 2) only relying on the overload sensor of the fuze to sense the missile overload to release the safety of a certain level, the fuze adopts this method to release the safety of a certain level, which needs to be based on the reliable work of the overload sensor in the fuze, if the overload sensor fails, the fuze release is abnormal, resulting in abnormal work of the missile. After years of accumulation and research and development of submarine-launched missiles, currently and in the future, submarine-launched missiles are usually equipped with accelerometers, water depth sensors, and water-out sensors, which can transmit water depth signals, water-out signals, and acceleration information to the fuze, and the fuze uses these information as redundant information for fuze safety release judgment to ensure the reliability of fuze work. That is: 1) both the water depth signal and the water-out signal meet the safety release condition, and the fuze releases the safety of a certain level; 2) both the information sensed by the overload sensor in the fuze and the acceleration signal received by the fuze meet the safety release condition, and the fuze releases the safety of a certain level. This method can greatly improve the overall protection level of the missile and has great application space. SUMMARY

[0003] The present application solves the problem that if the output signal of the internal sensor of the fuze appears noise, distortion, etc., it will cause abnormal release of the fuze, and further cause abnormal work of the missile.

[0004] The present application is realized by the following technical solutions:

[0005] A new safety logic design method suitable for submarine-launched missile fuzes:

[0006] 1) In the design technical requirements of the fuze, it is specified that the fuze can perform bidirectional information interaction communication with the missile computer, and can receive the information transmitted by the water depth sensor, the water-out sensor, and the accelerometer;

[0007] 2) In the design technical requirements of the fuze, it is specified that the fuze has a three-level safety release judgment logic model, and the release of the safety of a certain level must have redundant conditions, and when the redundant conditions are all met, the safety of a certain level can be normally released;

[0008] 3) The software related design is completed according to the specified communication protocol and the three-level safety release judgment logic model requirements in the software design of the fuze.

[0009] Specifically:

[0010] 1) After the submarine-launched missile is ejected from the tube, the underwater movement is controlled according to the set program control model, the water depth sensor continuously transmits the water depth signal to the fuze, when the fuze senses that the water depth is less than the set value when the missile moves to the near water surface, one of the first level arming conditions is met, the missile is ejected according to the set attitude, the water ejection sensor transmits the water ejection signal to the fuze, when the fuze senses the water ejection signal, the second level arming condition is met, at this time, the two conditions of the first level arming are met, the first level arming of the fuze is normally disarmed; 2) After the missile is ejected, the speed increasing engine is started, the missile is accelerated and ascends under the propulsion of the speed increasing engine, the acceleration sensor in the missile continuously transmits the acceleration signal to the fuze, when the fuze senses the acceleration signal, one of the second level arming conditions is met, at the same time, the overload sensor in the fuze senses the overload, the second level arming condition is met, at this time, the two conditions of the second level arming are met, the second level arming of the fuze is normally disarmed; 3) The missile continues to fly, after the fuze receives the third level arming disarming instruction from the missile-borne computer, the third level arming of the fuze is normally disarmed.

[0011] The fuze has the redundant information disarming judgment function, the working reliability of the fuze is ensured, the algorithm is simple, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a submarine-launched missile fuze arming disarming process schematic diagram. DETAILED DESCRIPTION

[0013] The application discloses a new fuze arming logic design method suitable for submarine-launched missiles, and is suitable for the arming disarming process design of submarine-launched missiles, mainly used for improving the arming disarming reliability of the fuze and ensuring the working reliability of the missile. In the previous submarine-launched missile fuze disarming design scheme, the corresponding disarming process is completed by relying on the information sensed by the internal sensor of the fuze, and the information sensed by the sensor of the missile (not the internal sensor of the fuze) is not used to participate in the disarming; if the output signal of the internal sensor of the fuze appears noise, distortion and the like, the arming disarming of the fuze will be abnormal, and then the working of the missile will be abnormal. The design method of the application sends the water ejection signal, the water depth signal, the acceleration and the like sensed by the sensor of the missile (not the internal sensor of the fuze) to the fuze, and the fuze uses the information as redundant information for disarming judgment, so that the working reliability of the fuze is ensured.

[0014] The specific method is as follows: 1) after the submarine-launched missile is ejected from the tube, the underwater movement is controlled according to the set program control model, the water depth sensor continuously transmits the water depth signal to the fuze, when the fuze senses that the water depth is less than the set value when the missile moves to the near water surface, one of the first level safety conditions is met, the missile is ejected according to the set attitude, the water ejection sensor transmits the water ejection signal to the fuze, when the fuze senses the water ejection signal, the second level safety condition is met, at this time, the two conditions of the first level safety condition are met, and the first level safety of the fuze is normally released; 2) after the missile is ejected, the speed increasing engine is started, the missile is accelerated and ascends under the propulsion of the speed increasing engine, the acceleration sensor in the missile continuously transmits the acceleration signal to the fuze, when the fuze senses the acceleration signal, one of the second level safety conditions is met, at the same time, the overload sensor in the fuze senses that the overload meets the second level safety condition, the two conditions of the second level safety condition are met, at this time, the second level safety of the fuze is normally released; 3) the missile continues to fly, after the fuze receives the third level release instruction from the missile-borne computer, the third level safety of the fuze is normally released, see Figure 1 .

[0015] The present application is suitable for the release process design of the fuze of the submarine-launched missile:

[0016] 1) in the design technical requirements of the fuze, it is specified that the fuze can perform bidirectional information interaction communication with the missile-borne computer, and can receive the information transmitted by the water depth sensor, the water ejection sensor and the acceleration sensor;

[0017] 2) in the design technical requirements of the fuze, it is specified that the fuze has a three-level release safety judgment logic model, the release of a certain level of safety logic must have redundant conditions, and when the redundant conditions are met, a certain level of safety can be normally released;

[0018] 3) the software related design is completed according to the specified communication protocol and the three-level release safety judgment logic model requirements in the software design of the fuze.

[0019] The advantages of the technical scheme are that: without increasing the hardware cost, the water ejection signal, the water depth signal, the acceleration and other information sensed by the sensors (non-fuze internal sensors) arranged on the submarine-launched missile are integrated into the fuze release process, the fuze has a redundant information release safety judgment function, the working reliability of the fuze is ensured, the algorithm is simple, the cost is low, and it is worth promoting.

Claims

1. A new safety logic design method for submarine-launched missile fuze, characterized by: 1) The fuze is capable of bidirectional information exchange with the missile-borne computer, and can receive information transmitted by the water depth sensor, the water exit sensor and the accelerometer, as specified in the design technical requirements of the fuze; 2) The fuze has a three-level arming release judgment logic model, and the release of a certain level of arming logic must have redundant conditions, and the certain level of arming can be normally released only when all the redundant conditions are met; 3) The software design of the fuze is completed according to the specified communication protocol and the three-level arming release judgment logic model requirements; Specifically: 1) After the submarine-launched missile is ejected from the tube, it moves underwater according to the set program control model, the water depth sensor continuously transmits the water depth signal to the fuze, when the fuze senses that the water depth is less than the set value, one of the first level arming release conditions is met, the missile moves to the surface, the water exit sensor transmits the water exit signal to the fuze, when the fuze senses the water exit signal, the second of the first level arming release conditions is met, at this time, both of the first level arming release conditions are met, and the first level arming of the fuze is normally released; 2) After the missile exits the water, the speed booster starts, the missile accelerates and ascends under the propulsion of the speed booster, the accelerometer inside the missile continuously transmits the acceleration signal to the fuze, when the fuze senses that the acceleration signal meets one of the second level arming release conditions, at the same time, the overload sensor inside the fuze senses that the overload meets the second of the second level arming release conditions, both of the second level arming release conditions are met, at this time, the second level arming of the fuze is normally released; 3) The missile continues to fly, after switching to terminal guidance, the fuze receives the third level arming release instruction from the missile-borne computer, and the third level arming of the fuze is normally released.

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