Howtosignalprocessing
- How does accelerometer detect steps?
- Which sensor measures the steps of a human walking?
- How does step detection work?
How does accelerometer detect steps?
Accelerometers detect movement; when moved, it records acceleration. An accelerometer in smartphones, handheld game consoles, and wristband activity monitors (see Figure1, Fitbit®Flex™) measure the acceleration of the device from side to side (lateral), up and down (longitudinal), and front to back (vertical).
Which sensor measures the steps of a human walking?
Pedometers have been shown in clinical studies to increase physical activity, and reduce blood pressure levels and Body Mass Index. A study published in the Journal of The American Medical Association Nov.
How does step detection work?
Most of the current step detection algorithms rely on counting the peaks as each peak represents a user stride. The distance is computed by multiplying the number of steps by a step length. However, step length varies even for the same user; therefore, fixed step length can lead to an error in distance estimation.
