Abstract
Heart rate monitoring is becoming more and more important in the development of modern health industry. At present, wireless sensor network equipment is mainly used to realize the real‐time or periodic monitoring of human heart rate, so as to realize the health management of specific people. At the same time, the monitoring and analysis technology of heart rate is also widely used in special competitive sports. Through the real‐time monitoring and analysis of athletes’ heart rate, we can feedback and analyze their corresponding competitive state in real time, so as to monitor the sudden state of athletes, and also provide a basis for the improvement of athletes’ later sports level. Based on this, this paper will use a single‐chip microcomputer as the central data processing unit of the monitoring system at the hardware level, and inertial sensor and heart rate sensor at the sensor level. The system will design data acquisition module, motion positioning module, low‐power module, athlete heart rate acquisition module, and motion state recognition module. Aiming at the low accuracy of traditional heart rate acceleration motion wireless sensor in competitive sports athletes’ heart rate recognition and motion state recognition, this paper innovatively proposes an athlete heart rate recognition algorithm based on acceleration signal, which extracts the frequency‐domain characteristics of motion signal. The time‐domain and time‐frequency characteristics of athletes’ acceleration signal are used to realize the recognition of athletes’ sports state, and the power spectrum cancellation technology is used to realize the accurate detection of athletes’ heart rate. In order to verify the advantages of the hardware system and algorithm in this paper, three sports with quiet, dynamic, and random dynamic characteristics are selected for experimental verification. The experimental results show that the software algorithm proposed in this paper has obvious accuracy advantages in quiet and dynamic competitive sports compared with the traditional algorithm.
Highlights
The recognition, monitoring, and analysis technology of human heart rate and exercise state is widely used in health monitoring and exercise monitoring scenarios
In order to verify the advantages of hardware system and algorithm, three sports with quiet, dynamic, and random dynamic characteristics are selected for experimental verification
In view of the low accuracy of traditional heart rate acceleration motion wireless sensor in athlete heart rate recognition and motion state recognition in competitive sports, this paper proposes an athlete heart rate recognition algorithm based on acceleration signal, which fully extracts the frequency-domain, timedomain, and time-frequency features of athlete acceleration signal to realize the recognition of motion state; the accurate detection of athletes’ heart rate is realized by power spectrum cancellation technology
Summary
The recognition, monitoring, and analysis technology of human heart rate and exercise state is widely used in health monitoring and exercise monitoring scenarios. At the level of corresponding heart rate sensor, the main heart rate monitoring algorithms mainly include four calculation algorithms: blood oxygen heart rate monitoring, optical capacitance pulse wave heart rate monitoring algorithm, ECG algorithm, and arterial blood pressure method These four traditional heart rate detection algorithms have various detection accuracy problems such as inaccurate detection in athletes’ special competitive sports at the level of state recognition; the current inertial sensors mainly use acceleration sensors for motion state recognition. At present, such sensors have serious power consumption problems, so they do not meet the requirements of green low power consumption. The structure of this paper is arranged as follows: the second section of this paper will analyze and study the current research status of heart rate acceleration wireless sensor in competitive sports; the third section of this paper will carry out rational analysis and architecture design from the two aspects of hardware system and software algorithm of heart rate acceleration wireless sensor; the fourth section of this paper is mainly verification experiment and analysis; this paper will give its summary
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