Heart rate measurement human body scale and heart rate measurement method

Abstract

The invention discloses a heart rate measurement human body scale and a heart rate measurement method. The heart rate measurement human body scale comprises a scale body, a weighing sensor and an impedance measurement unit, wherein the impedance measurement unit comprises a microcontroller, four electrodes and an impedance measurement front end. The microcontroller is provided with a heart rate extracting unit and a shake compensation unit, wherein the shake compensation unit is used for detecting shake of the human body on the scale body through the weighing sensor and correspondingly adjustsand compensates impedance data measured by the impedance measurement unit. The heart rate extracting unit is used for extracting heart rate through bioelectrical impedance. The heart rate measurementhuman body scale is convenient to manufacture without change of the structure and ID design of an existing human body scale, is convenient to use without changing of use habits of existing users, andmeanwhile can improve the measurement accuracy and reliability without special sensors.

Description

technical field [0001] The invention belongs to the technical field of human body scales, in particular to a human body scale with a heart rate measurement function and a heart rate measurement method. Background technique [0002] Body scales include scales with their own body weight measurement function and body fat scales with body composition analysis (fat measurement). In recent years, as people's awareness of health hazards such as obesity, overweight, and lack of exercise has become more and more common, smart body scales, especially body fat scales with body composition analysis, have received more and more attention and popularity. [0003] Current body fat scales can provide multiple body composition parameters besides body weight, such as body fat percentage, muscle percentage, water percentage, protein, basal metabolic rate, etc., which largely help users understand their own body composition. For overweight , weight loss and other quantitative guidance. In add...

AI Technical Summary

Problems solved by technology

However, this method requires an opening on the scale body to transmit light, the production and processing are more complicated, and the product ID needs to be changed

At the same time, in order to ensure the signal quality, it is required to align the foot with the light-transmitting opening of the sensor. The distance must be moderate and cannot be under pressure, which affects the user experience.

In addition, the cost of the photoelectric heart rate sensor is also relatively high

At the same time, when the human body scale measures the heart rate, the contact condition between the skin of the human foot and the electrode, the shaking of the human body, etc. will affect the heart rate measurement, which will reduce the accuracy of the measurement.

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