Multifunctional composite fuze circuit of fire extinguishing bullet

Abstract

The invention discloses a multifunctional composite fuze circuit of a fire extinguishing bullet, in which the control over emission and initiation of explosion of a fuze is realized by using double singlechips, an instantaneous acceleration value of the fire extinguishing bullet is acquired by using a micro electromechanical system (MEMS) acceleration chip, and deprotection of the fuze is determined by using a time integral which reaches an acceleration threshold. In the fuze circuit, a path of singlechip is used for finishing communication and information interaction with a control system according to different power-up states or is used for controlling the emission of the fire extinguishing bullet, power-up of the fuze at the head of the fire extinguishing bullet, the initiation of explosion of the fire extinguishing bullet and the like; the other path of singlechip is united with the MEMS acceleration chip to finish protection and the deprotection of the control over the initiation of explosion of the fuze; thus the function of an electronic safety and arming system is realized. The entire fuze circuit realizes functions of control over fire extinguishing bullet ignition, time fuze, impact fuze, Doppler altimeter fuze and acceleration electronic safety, and is a multifunctional composite fuze circuit.

Description

technical field [0001] The invention relates to a rocket fire and detonation control fuze technology, in particular to a multifunctional composite fuze circuit for forest fire extinguishing bombs, belonging to the field of fuzes. Background technique [0002] In the field of existing rocket fuzes, rocket fuzes are mostly simple single-function fuzes or dual-function combined fuzes, such as time fuzes, impact fuzes or time-impact combined fuzes. The functions realized by a single-function fuze or a dual-function joint fuze are relatively simple, and generally only one or two preset functions can be completed, and at the same time, the ability to perceive external information is weak, and it is impossible to implement different firings of the fuze according to changes in external information and detonation control status. In addition, most of the existing rocket fuze fuses are mechanical fuses. Mechanical fuses with integral functions are generally very precise, complex in st...

AI Technical Summary

Problems solved by technology

The functions realized by a single-function fuze or a dual-function joint fuze are relatively simple, and generally only one or two preset functions can be completed, and at the same time, the ability to perceive external information is weak, and it is impossible to implement different firings of the fuze according to changes in external information and detonation control state

In addition, most of the existing rocket fuze fuses are mechanical fuses. Mechanical fuses with integral functions are generally very precise, complex in structure, very difficult to design and process, and have a long design cycle

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