It seems that most of this year's smart bracelets and smart watches have heart rate monitoring. Some people have questioned, can such a small bracelet monitor a person's heart rate? Can that be accurate? How are those smart wearable products monitored?
First, why do you want to measure your heart rate?As one of the most important vital signs of the human body, each person's heart rate will vary according to age, gender and other physiological conditions. In general, the average heart rate of a normal adult is about 75 beats / min (60 to 100 beats / min). In the same person, when the heart rate is slow or sleep, the heart rate is slowed down, and the heart rate is accelerated during exercise or emotional excitement. Under the influence of certain drugs or neurohumoral factors, the heart rate may be accelerated or slowed down. People who often perform physical labor and physical exercise usually have a slow heart rate.
Specifically, the factors affecting heart rate changes are mainly three major regulatory systems, namely, self-regulation, fluid regulation, and neuromodulation. Changes in heart rate can directly or indirectly reflect the various aspects of the body's health, which is the significance of measuring heart rate. In the field of smart wear, the significance of measuring heart rate is mainly reflected in three aspects.
The first is sports . The heart rate can reflect the real information of the user during exercise. If the heart rate is too high, the exercise is too intense, and the user's body water evaporates too quickly. This kind of exercise is not good for the body. If the heart rate is only low, the user is not high enough. It is impossible to burn enough calories.
Secondly, in terms of diseases , monitoring the resting heart rate in the normal range, monitoring cardiac arrest during daily activities, abnormally increased heart rate, etc. can play a role in preventing diseases in a timely manner, and even detecting heart rate through ECG can detect abnormal heart rhythm. In addition, pulse wave changes can be monitored by fingertip photoplethysmography to analyze pulse rate, blood oxygen concentration, microcirculatory peripheral vascular status in diabetic patients, and the like.
Nowadays, heart rate bracelets are basically all based on the light heart rate. They are tested by the principle of light reflection. They are generally affected by ambient light. Some products are heart rate bracelets that do not have heart rate data against strong light or all black. Green (Osram) is usually used with a photodiode to detect the flow of blood flowing through the wrist at any time. When the user's heart beats, more blood will flow through the user's wrist, and the amount of green light will be absorbed. In the heartbeat gap, blood flow is reduced, resulting in a decrease in green light absorption. Heart rate signals are effectively monitored and extracted by sophisticated algorithms, mostly using NXP original phase heart rate.
The bracelet is equipped with the most basic functions: sports step, sports distance, calorie consumption, sports statistics (year and month) call reminder, sleep quality analysis (year and month), time and date display, alarm reminder, drinking reminder, remote photo , mobile phone anti-lost friends circle to share the goal setting
1. Sleep monitoring. Sleep depth, sleep duration and overall sleep quality can be recorded. Data storage. It provides a historical record of exercise and sleep data, can be viewed from time to time, and predicts our daily, weekly, and monthly conditions based on the data, publishes trend graphs, and displays our sleep records better.
2. Sports step , which mainly highlights the concept of exercise and health, and can automatically identify the user's movements. For example, the number of steps you take each day, the calories burned, the number of kilometers you have completed, you can also share the daily exercise data of the user to the design platform and participate in the interaction of the circle of friends.
3. Sedentary reminder. For the office workers intimate and healthy, the principle is the same as the alarm clock.
4. Mobile phone anti-lost is especially suitable for young parents. It has a powerful anti-lost function. When a child holds a mobile phone, it will be reminded as long as it is farther than your setting range. Parents are more likely to take their children to participate in some public activities, or to enter and exit some places.
5. The mobile phone is anti-lost. The Bluetooth wristband has a Bluetooth connection range. When our Bluetooth is disconnected, the wristband will vibrate and achieve a vibration.
Shenzhen Scodeno Technology Co.,Ltd , https://www.scodenonet.com