Waveform Signal Processing Method and Apparatus

A waveform signal processing apparatus, comprising:

• a processor;
• and
• a memory coupled to the processor and storing one or more programs that, when executed by the processor, cause the waveform signal processing apparatus to be configured to:
• obtain a filtered waveform signal;
• mark the filtered waveform signal as K signal line segments based on monotonicity, wherein K is an integer greater than or equal to two, and wherein the marking is further configured to:
• divide the filtered waveform signal into monotonically upward signal line segments or monotonically downward signal line segments based on monotonicity;
• and
• sequentially number the signal line segments based on time continuity to obtain line segments having sequential numbers;
• extract first line segment data of each of the K signal line segments;
• determine a line segment matching template of the filtered waveform signal based on the first line segment data, wherein the line segment matching template comprises M consecutive signal line segments, and wherein M is an integer less than K;
• match each of the K signal line segments with the M consecutive signal line segments;
• determine a target wave group of the filtered waveform signal based on a matching result of each of the K signal segments;
• and
• determine, based on second line segment data of the target wave group, periodic signal data of the filtered waveform signal.

A computer program product comprising computer-executable instructions stored on a non-transitory computer-readable medium that, when executed by a processor, cause an apparatus to:

• obtain, from a sensor, a filtered waveform signal;
• mark the filtered waveform signal as K signal line segments based on monotonicity, wherein K is an integer greater than or equal to two, and wherein the apparatus is configured to mark the filtered waveform signal as the K signal line segments by:
• dividing the filtered waveform signal into monotonically upward signal line segments or monotonically downward signal line segments based on monotonicity;
• and
• sequentially numbering the signal line segments based on time continuity to obtain line segments having sequential numbers;
• extract first line segment data of each of the K signal line segments;
• determine a line segment matching template of the filtered waveform signal based on the first line segment data, wherein the line segment matching template comprises M consecutive signal line segments, and wherein M is an integer less than K;
• match each of the K signal line segments with the M consecutive signal line segments;
• determine a target wave group of the filtered waveform signal based on a matching result of each of the K signal line segments;
• and
• determine, based on second line segment data of the target wave group, periodic signal data of the filtered waveform signal.