1. What is a heart rate module?
The heart rate module is a heart rate that is professionally used to monitor body parts such as the wrist, fingers, forehead, ear lobes, and chest. The module uses the optical principle of a reflective photoelectric heart rate sensor to penetrate the skin to detect the flow of blood and obtains the person's current heart rate through special software algorithms.
Due to the influence of exercise, the heart rate is also a process of change during exercise. When the human body is at rest, the normal error of the test heart rate is less than 3 BPM. The human heart rate error tested during exercise will be relatively large, and the test error is less than 10 BPM (normally the normal movement is less than 5 BPM).
2, heart rate data calculation?
Calculate the range of exercise heart rate as follows: subtract the experimenter's age from 220, which is the maximum heart rate, then use the following formula to calculate the minimum exercise heart rate and maximum exercise heart rate:
220 an age = maximum heart rate (MHR);
MHR*0.6 = minimum exercise heart rate;
MHR*0.9 = maximum exercise heart rate.
3, data analysis
Between the minimum exercise heart rate and the maximum exercise heart rate, it is the range of individual exercise heart rate.
If the result of the experiment is within the range, the body is in good condition and exercise is sufficient;
If the experimental results are out of range, the experimenter’s physical condition is poor and exercise should be strengthened.
The reason why athletes exercise longer and excel in energy is because athletes often exercise, so when the exercise is performed, the output of the heart is greater than that of ordinary people, and the blood circulation is faster. At the same time, it also attracts more oxygen, so that the muscle cells Aerobic breathing produces more energy.
The pulse recovery time of normal people is more than 10 minutes, usually 12 minutes to 15 minutes. The heart rate after exercise cannot be restored to the pre-exercise level in a short period of time because the heart rate at the beginning does not have any additional exercise, and the body's loss level is small, and it is at a lower heart rate level.
RT-H001 heart rate module is professionally used to obtain human heart rate (ie, pulse rate, hereafter referred to as heart rate) by detecting body parts such as wrist, back of hand, forehead, ears, etc. The module detects blood by penetrating the skin with a specific frequency of photons. The flow conditions are processed through special algorithms to obtain the human heart rate at that time.
Because of the influence of sports, the pulse of the body during exercise is also a changing process. When the human body is at rest, the test error is less than 3 BPM. When the human body moves, the test error is large, and the test error is less than 10 BPM (normal movement is less than 5 BPM).
1, heart rate sensor LST1303
2. Precision Operational Amplifier LST221
3, low-power MCU
The module has a circular shape with a diameter of 12mm, a mounting hole diameter of 1.1mm and a thickness of 1.5mm (does not include a photoelectric sensor, in which the thickness of the PCB board is 0.4mm and the circuit element height is 1.1mm).
1. Operating voltage 3.3V 6.5mA; Sleep current: 1uA.
2. Reflective heart rate sensor, superior performance, high sensitivity, good accuracy, even relatively accurate monitoring during exercise.
3. Small module area, convenient design for customers, direct output of heart rate data, suitable for secondary product development, such as smart wearable device wristbands, watches, helmet Bluetooth headset smart glasses, etc.
4. Mature, stable performance, low-cost, low-power solution, effectively save product development cycle, easy to use.
1, smart watches, health watches, sports watches
2, smart bracelet, health bracelet
3, smart glasses, smart helmet
4, smart headphones, Bluetooth headsets, sports headphones
5, mouse, wireless mouse
6, game consoles, game handles
7, treadmill, health physiotherapy equipment
8, nursing homes, nursing homes, nursing homes
9. Car health monitoring system
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