Stride length calibration method and system, and related device

A stride length calibration method performed by a second device, wherein the stride length calibration method comprises:

• detecting that a user is walking or running;
• determining whether a stride length of the user in a preset database needs calibration;
• collecting an actual movement distance of the user when calibration is needed;
• obtaining a quantity of movement steps of the user when calibration is needed;
• detecting a movement environment in which the user is located when calibration is needed, wherein the movement environment comprises a flat surface or a sloped surface;
• calculating an actual movement stride length of the user based on the quantity of the movement steps of the user, the actual movement distance of the user, and the movement environment in which the user is located;
• updating the stride length of the user in the preset database using the actual movement stride length of the user;
• and
• sending the preset database to a first device through a communication connection between the first device and the second device.

A mobile device, wherein the mobile device is a first device and comprises:

• a motion sensor configured to:
• detect that a user is walking or running;
• collect a quantity of movement steps of the user;
• and
• detect a movement environment in which the user is located, wherein the movement environment comprises a flat surface or a sloped surface;
• a processor coupled to the motion sensor and configured to determine whether a stride length of the user in a preset database needs calibration, wherein the preset database comprises the movement environment corresponding to the stride length of the user;
• and
• a transceiver coupled to the processor and configured to request to obtain, from a second device, an actual movement distance of the user when the stride length of the user in the preset database needs calibration through a communication connection between the first device and the second device,
• wherein the processor is further configured to:
• calculate an actual stride length of the user based on the actual movement distance of the user, the quantity of movement steps of the user, and the movement environment in which the user is located;
• and
• update the stride length of the user in the preset database using the actual stride length.