Automobile intelligent voice alarm system based on ADPCM algorithm

The utility model relates to the technical field of intelligent voice alarm systems, and discloses an automobile intelligent voice alarm system based on an ADPCM algorithm, which is good in reliability and comprises a detection amplification circuit (100) used for collecting data signals in intelligent driving of an automobile and amplifying the data signals; the input end of the band-pass filter circuit (200) is coupled to the output end of the detection amplification circuit (100), and the band-pass filter circuit (200) is used for receiving the amplified data signal so as to filter out-of-band clutters in the data signal and suppress sampling aliasing distortion; and the input end of the master control circuit (300) is connected with the output end of the band-pass filter circuit (200), and the master control circuit (300) is used for receiving the data signal, comparing the input data signal with a pre-stored danger signal and judging the type of the data signal so as to selectively output corresponding v