Heart rhythm detection method and electronic device

An electronic device, comprising:

• a processor;
• and
• a memory coupled to the processor and configured to store a computer program, which when executed by the processor, causes an electronic device to:
• acquire a first photoplethysmograph (PPG) signal with a first preset duration of time, wherein the acquiring a first PPG signal with the first preset duration of time comprises:
• acquire a PPG signal and an accelerometer (ACC) signal with a fourth preset duration of time, the PPG signal with the first preset duration of time including a plurality of PPG signals with the fourth preset duration of time, the fourth preset duration of time being less than the first preset duration of time,
• determine whether the electronic device has been in a motion state within a fifth preset duration of time, the fifth preset duration of time being greater than the first preset duration of time, and
• continuously acquire the PPG signal and the ACC signal with the fourth preset duration of time until an acquisition duration meets the first preset duration of time if the electronic device has not been in the motion state within the fifth preset duration of time;
• determine a plurality of heart rate values based on the first PPG signal;
• determine a difference of every two adjacent heart rates based on the plurality of heart rate values, the difference of every two adjacent heart rates being used for generating a heart rate difference trajectory graph;
• acquire a parameter of a heart rate difference trajectory based on the heart rate difference trajectory graph and the parameter of the heart rate difference trajectory comprising at least one of an angle, a quantity, an angle standard deviation, or a distance standard deviation;
• determine a heart rhythm type of the first PPG signal according to the parameter of the heart rate difference trajectory, the heart rhythm type comprising at least one of a premature beat, atrial fibrillation, a sinus rhythm, ventricular tachycardia, bigeminy, or trigeminy;
• and
• display the heart rhythm type of the first PPG signal.

A chip, comprising:

• a memory;
• and
• a processor communicatively coupled to the memory, wherein the processor is configured to execute instructions stored in the memory to cause the chip to:
• acquire a first photoplethysmograph (PPG) signal with a first preset duration of time, wherein the acquiring a first PPG signal with the first preset duration of time comprises:
• acquire a PPG signal and an accelerometer (ACC) signal with a fourth preset duration of time, the PPG signal with the first preset duration of time including a plurality of PPG signals with the fourth preset duration of time, the fourth preset duration of time being less than the first preset duration of time,
• determine whether an electronic device has been in a motion state within a fifth preset duration of time, the fifth preset duration of time being greater than the first preset duration of time, and
• continuously acquire the PPG signal and the ACC signal with the fourth preset duration of time until an acquisition duration meets the first preset duration of time if the electronic device has not been in the motion state within the fifth preset duration of time;
• determine a plurality of heart rate values based on the first PPG signal;
• determine a difference of every two adjacent heart rates based on the plurality of heart rate values, the difference of every two adjacent heart rates being used for generating a heart rate difference trajectory graph;
• acquire a parameter of a heart rate difference trajectory based on the heart rate difference trajectory graph and the parameter of the heart rate difference trajectory comprising at least one of an angle, a quantity, an angle standard deviation, or a distance standard deviation;
• determine a heart rhythm type of the first PPG signal according to the parameter of the heart rate difference trajectory, the heart rhythm type comprising at least one of a premature beat, atrial fibrillation, a sinus rhythm, ventricular tachycardia, bigeminy, or trigeminy;
• and
• display the heart rhythm type of the first PPG signal.