Solution:
The principle of step recording: The watch has a built-in acceleration sensor. The data detected by the acceleration sensor is combined with the basic information of the algorithm and the human body, and finally the information is converted into steps, consumption and other information.
Factors affecting the number of steps recorded by the watch: 1. Because the principle of the watch's measurement of walking distance is to estimate the user's step length according to the height, gender and weight set by the user, and then multiply the number of steps taken by the individual to obtain an estimated value.
2. Because the step length will vary from person to person, and the step length may be different for people with the same height, gender, and weight, the final calculated value will also have a large error.
3. The accuracy of step counting, that is, the number of steps taken, there are also many uncertain factors that will have a great relationship with each person's behavior habits, such as the habit of walking with arm swings, etc. a lot (such as walking, riding, driving, bathing, etc.), arm movement
More complex operations (such as keystrokes, moving the mouse, lifting and pulling objects, etc.). 4. It is precisely because of the above reasons that the final calculated distance of the watch is also an estimated value, and the watch cannot be used as a professional measuring tool to measure the distance. Subsequent optimization will continue to be performed on the software algorithm to calculate a more accurate data.