Roll angle detection method of directional firework shell and detection device thereof

Abstract

The invention discloses a roll angle detection method of a directional firework shell and a detection device thereof. The method comprises the steps of: firstly, determining and inputting related information of emitting the firework shell during detection; computing a local magnetic inclination and a local magnetic declination; computing a relatively top reference angle and an initiation phase; fixing the initiation phase to the firework shell, loading the firework shell and emitting; beginning to work by a shell-borne part after emitting the firework shell; detecting a geomagnetic signal by a magnetic detection circuit; computing the phase of the geomagnetic signal; finally computing the deviation of the initiation azimuth; and continuously outputting deviation signals to an attitude control device. When the deviation of the azimuth is 0, the initiation azimuth is needed. The detection device comprises a ground part and the shell-borne part. The detection method can be used for directly detecting the deviation of the initiation azimuth without integral or accumulated errors. The detection device has small volume, simple circuit, low cost and strong impact resistant performance.

Description

Roll Angle Detection Method and Detection Device of Directional Firework Bomb technical field The invention relates to a detection technology for firework bombs, in particular to a roll angle detection method and a detection device for directional fireworks bombs. Background technique With the development of pyrotechnics technology, various new types of pyrotechnic bombs continue to emerge, among which directional pyrotechnic bombs need to act under a given rolling attitude in order to give the required special effects. Although the attitude detection and control of traditional missiles is very mature, the cost of the gyroscope used for attitude detection is very high and the system is complex, which is not suitable for the roll attitude detection of fireworks bombs. Contents of the invention The purpose of the present invention is to provide a roll angle detection method and detection device for directional fireworks bombs, so that the fireworks bombs can be detonated ...

AI Technical Summary

Problems solved by technology

Although the attitude detection and control of traditional missiles is very mature, the cost of the gyroscope used for attitude detection is very high and the system is complex, which is not suitable for the roll attitude detection of fireworks bombs.

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