Full-automatic step counting device based on upper arm swinging

Abstract

The invention relate to a full-automatic step counting device based on upper arm swinging, and belongs to the technical field of human body motion information detection. The full-automatic step counting device comprises a casing, a swinging hammer, a fixing shaft, a limit post, an upper pawl, a lower pawl, a ratchet wheel, a transmission shaft, a drive gear, a mechanical counter and the like, wherein the casing is worn in the position of a wrist through a wrist strap; the swinging hammer is fixed on the casing through the fixing shaft; when an arm swings back and forth, the swinging hammer generates swinging opposite to an arm swinging direction under the action of inertia; bi-directional swinging of the swinging hammer is converted to unidirectional marching type rotation of the ratchet wheel by a ratchet-and-pawl mechanism; the rotation of the ratchet wheel is transmitted to the drive gear through the transmission shaft; the drive gear is meshed with last character wheel shifting teeth of the mechanical counter; and the mechanical counter counts and displays according to times of marching type rotation. The counting device provided by the invention can provide accurate fitness information for a user, has stronger interference resistance capacity, requires no power source and has unique advantages of energy conservation and environment protection.

Description

technical field [0001] The invention relates to a fully automatic pedometer based on upper arm swing, belonging to the technical field of human motion information detection. Background technique [0002] Walking is a convenient and effective form of exercise that can reduce the risk of chronic diseases such as high blood pressure, stroke, coronary heart disease, diabetes, colon cancer, breast cancer, and osteoporosis. The "Dietary Guidelines for Chinese Residents" issued by the Ministry of Health of the People's Republic of China recommends that adults should perform physical activities equivalent to walking more than 6,000 steps per day. Pedometers can help people monitor and master their daily walking steps in real time, and thus have been used more and more widely. [0003] No matter the existing pedometers adopt mechanical sensors or electronic sensors, they count the number of walking steps by detecting the vertical vibration times of the center of gravity of the body ...

AI Technical Summary

Problems solved by technology

[0004] (1) The detection is the up and down vibration of the body's center of gravity, and the step counting result is easily affected by external vibration interference such as elevators and vehicles;

[0005] (2) The number of walking steps is counted, and the effective number of steps when swinging the arms is unable to be recorded (the fitness effect is obvious when walking with large swings of the arms), which is easy to make users mistakenly believe that the expected exercise effect is achieved

[0006] (3) Requires batteries for power supply, which is not energy-saving and environmentally friendly

If the used batteries are not properly disposed of, they will cause serious pollution to the environment.

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