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    RT-H001 Heart Rate Module Measurement Plan

     

    First, heart rate measurement principle 1, what is a heart rate module? The heart rate module is a heart rate that is professional for monitoring the wrist, finger head, forehead, earlobe, chest and other human body parts. The module is the optical principle of the reflective photoelectric heart rate sensor penetrates the flow of the skin to detect the flow of blood, and the current heart rate of the human is acquired by the special software algorithm. Due to the influence of exercise, the human body is also a change process when exercise. When the human body is stationary, the test heart rate is normal error less than 3 bpm. The human body is relatively large when the human body is moving, and the test error is less than 10 bpm (generally less than 5bpm generally in normal movement). 2, heart rate data calculation? The method of calculating the heart rate of the exercise is as follows: Use 220 to subtract the age of the experimenter, this is the maximum heart rate, then calculate the lowest exercise heart rate and the highest exercise heart rate with the following formula: 220 angelic = maximum heart rate (MHR); MHR * 0.6 = minimum exercise heart rate; MHR * 0.9 = highest exercise heart rate. 3, data analysis Between the lowest exercise heart rate and the highest exercise heart rate, it is the range of personal exercise heart rate. If the experimental results are within the scope, the physical condition is good, exercise is sufficient; The experimental results are outside the scope, and the physical condition of the experiment is poor and should strengthen exercise. The athletes have a longer exercise, and the reason is more energetic because the athletes are often exercised, so the amount of heart in the heart is greater than the ordinary person, the blood circulation is faster, and more oxygen is also absorbed, so that muscle cells Perform an aerobic breathing produces more energy. Normal people's pulse recovery time is greater than 10 min, typically 12 min one 15 min. The heart rate after exercise cannot restore the level before the exercise in a short period of time, because the heart rate at the beginning does not have any additional motion, the body's loss is small, at a lower heart rate level. Second, the program overview The RT-H001 heart rate module is specialized to obtain a human heart rate (including the pulse ratio, the following temporal rate) module, which is used by detecting a wrist, hand back, forehead, ear and other human body parts (ie, the following is called the heart rate) module to detect the skin to detect the blood. The flow conditions are processed by special algorithms to obtain the heart rate of the human body at the time. Because of the affected impact, the pulse of human motion is also a change process. When the human body is stationary, the test error is less than 3 bpm, and the test error is large when the human body moves, and the test error is less than 10 bpm (generally normal exercise is less than 5 bpm). Third, the main chip: 1, heart rate sensor LST1303 2, precision op amplifier LST221 3, low power MCU Fourth, program schematic, physical map The module size is circular, 12 mm in diameter, 1.1 mm in diameter of the fixing hole, 1.5 mm thick (not including the photoelectric sensor, wherein the thickness of the PCB plate is 0.4mm. The circuit element height is 1.1 mm). Five, program characteristics / advantages 1. Working voltage 3.3V 6.5mA; sleep current: 1UA. 2. Reflective heart rate sensor, superior performance, high sensitivity, good accuracy, even in motion, can be relatively accurately monitored. 3. Small modules, convenient customer design, direct output of heart rate data, suitable for secondary product development, such as smart wear equipment bracelet, watch, helmet Bluetooth headset smart glasses, etc. 4. Mature, stable performance, low cost, low power plan, effectively saving product development cycles, easy and fast. Sixth, program application field 1, smart watch, health watches, sports watches 2, smart bracelet, health bracelet 3, smart glasses, intelligent helmet 4, intelligent headset, Bluetooth headset, sports headphones 5, mouse, wireless mouse 6, game console, game handle 7, treadmill, health physiotherapy equipment 8, old home, nursing home, nursing hospital 9. Automobile health monitoring system, reading full text, technology area RT-H001 Heart Rate Module Measurement Plan Fast imaging new technology in human lungs, providing Xinli to lung disease diagnosis How to build a big healthy ecology? AI and medical combination The first domestic full digital PET enters the clinical trials, which will help more patients solve difficult Artificial intelligence technology for potential heart disease

     

     

     

     

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