4hw.com.cn: pedometer has become a sports tool for more and more people, but many people still have questions about how to use it. The pedometer usually has three keys: reset, mode and set. Some manufacturers add backlight keys, MP3 keys and other additional functions to the pedometer, but the basic keys are no more than these three.
How to use the Pedometer?
Pedometer has become more and more people's sports tools, but many people still have questions about how to use it. The pedometer usually has three keys: reset, mode and set. Some manufacturers add backlight keys, MP3 keys and other additional functions to the pedometer, but the basic keys are no more than these three.
Generally, the mode key is used to switch the viewing data, and the set key, as the name implies, is to adjust the setting data. When the pedometer sets data, the adjustable data will flash. At this time, the method of adjusting data is different according to the manufacturer's key setting, and the operation of setting is also different.
The process of pedometer is generally as follows: pull out the battery insulator behind the pedometer to activate the pedometer, and then set the personal information including weight and step distance, where step distance is the distance from the front toe to the back toe of the first step. The pedometer is generally worn on the hands of the athletes, and the 2D pedometer with round buckle needs to be worn vertically on the ground; the 3D pedometer with square type has no requirement on the wearing mode.
Finally, the user should clear the steps on the step counting interface before using the pedometer, so as to reduce the step counting error.
Principle of pedometer
People pay more and more attention to their health, running has become a convenient and effective way of exercise. Pedometer can help people master the exercise situation in real time. Its main function is to detect the number of steps, through which the walking distance can be calculated.
In order to detect the number of steps, the pedometer must first have a certain understanding of the walking posture of people. When walking, feet, legs, waist and arms are all moving. Their movements will generate corresponding acceleration, and there will be a peak at a certain point. It is the most accurate to detect the steps from the foot acceleration, but considering the convenience of carrying, we choose to use the waist movement to detect the steps.
Generally, an accelerometer is used in pedometer to feel the external vibration. The whole principle of the pedometer collects the acceleration information and sends the data to the single-chip microcomputer for processing; the single-chip microcomputer controls the work of the whole system and detects the steps from the data and sends them to the LCD for display; the external control button carries out the on-off control and function selection, etc. The most obvious is the up and down displacement of the waist, so it is most suitable to hang the step recorder on the belt.
The so-called vibration sensor is actually a balance hammer in the up and down vibration when the balance is broken so that a contact can appear on / off action. There is a mechanical vibrator in it, which will vibrate up and down when it moves. The machine collects the frequency of the vibrator movement to calculate the value and calculate the calories consumed.