Collection method, user interface, and related apparatus

Abstract

Disclosed in the present application are a collection method, a user interface, and a related apparatus. The method can, in the process of collecting a PPG signal of a certain region on a finger, output prompt information. By means of the prompt information, the user is guided to adjust the contact region between the finger and a PPG module to a position with higher signal quality, so that an electronic device obtains a PPG signal with higher signal quality. It can be learned that the method fully considers impact of blood vessel distribution and a state of each region of the skin on PPG signal quality, and can dynamically adjust the contact position between the finger and the PPG module when the user measures the PPG signal, thereby ensuring that the electronic device can collect a PPG signal with relatively high signal quality as much as possible.

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