An aircraft pyrotechnic product safety detonation circuit and detonation method

Abstract

The invention discloses a safe detonating circuit and a safe detonating method for an initiating explosive device of an aircraft. The safe detonating method comprises the following steps: firstly, forbidding power supply for a power supply positive end of the initiating explosive device and a power supply positive end of a relay, and setting a circuit of the initiating explosive device in an initial safe state; supplying power to the power supply positive end of the initiating explosive device, starting supplying power to the power supply positive end of the relay after a certain time interval, and enabling the circuit of the power supply initiating explosive device to enter an electrified safe state; connecting a take-off signal of the aircraft into an open circuit end of an electromagnetic coil, and enabling the circuit of the initiating explosive device to enter a one-time unlocking state; connecting a separating signal of the aircraft and a rocket into the electromagnetic coil, and enabling the circuit of the initiating explosive device to enter a secondary unlocking state; instantly applying a detonating instruction to the open circuit end of the electromagnetic coil, and detonating the initiating explosive device; cutting off the power supply of the power supply positive end of the initiating explosive device and the power supply positive end of the relay, breaking off the take-off signal of the aircraft and the separation signal of the aircraft and the rocket, and enabling the initiating explosive device to be restored to an initial safe state. According to the safe detonating circuit and the safe detonating device disclosed by the invention, due to the adoption of automatic unlocking, the detonating circuit and a five-stage detonating process, the initiating explosive device is effective, safe and reliable for detonation.

Description

technical field [0001] The invention relates to a safe detonation circuit and a detonation method for aircraft pyrotechnics, belonging to the technical field of aircraft electrical control. Background technique [0002] There are a large number of pyrotechnic devices installed on the aircraft. To realize the safe and reliable operation of these devices, it is necessary for the overall personnel to design a reasonable protection circuit to ensure the reliability and safety of the technical position and the launch position test, which is convenient and feasible. The successful application of the automatic safety unlocking technology for pyrotechnics can simplify the operation process of pyrotechnics at the launch site, cancel the operation steps of unplugging the short-circuit plug and connecting the real pyrotechnics before firing, and at the same time, the short-circuit design circuit ensures the safety and reliability of pyrotechnics, and When the aircraft stops flying, it ...

AI Technical Summary

Problems solved by technology

[0004] (1) Set up an external short-circuit plug, and unplug the corresponding plug before shooting, which makes the operation of the firing position complicated;

[0005] (2) The circuit test of pyrotechnic products is complicated, the test process is difficult to automate, and the launch position test takes a long time;

The successful application of automatic security unlocking technology can solve the problems of complex testing of pyrotechnics, difficulty in automating the testing process, and long testing time of launching positions

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