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For a long time, the amount of ammunition used for 37 artillery in weather modification operations is recorded by artificial records, which is more complicated and backward. Especially in recent years, the operation period of Henan is increasing year by year, and the amount of ammunition is increasing. This requires higher accuracy and timeliness of information acquisition for artillery. With the development of acoustic technology, the speech recognition algorithm is constantly improved, and the accuracy of recognition is becoming higher and higher, and more and more applications are applied. At the same time, the information level of the meteorological industry is also improving. The sound acquisition instrument, which can automatically collect artillery operation information, is developed successfully, which makes it possible to automatically collect and transmit operation information. The traditional sound acquisition instrument combined with the advanced speech recognition algorithm can overcome the environmental noise and improve the accuracy of sound acquisition instrument, which provides a new scheme for automatically collecting the information of artillery operation.