多年来，心率监测仪在心血管疾病的研究和诊断方面发挥出显著的作用，它们所

Over the years, heart rate monitors have played a significant role in the research and diagnosis of cardiovascular diseases, and the bioelectric signals recorded by <br>them during cardiac activity have become an important basis for clinical diagnosis. Recently, <br>although there are many instruments for detecting heart rate, there are <br>not many portable and digital heart rate measuring devices that can achieve accurate measurement, easy portability, alarm and other functions like the system designed in this paper. <br>The system uses AT89C2051 single chip microcomputer as the core control chip, photoelectric pulse wave sensor collects <br>signals , and uses a seven-segment digital tube as a display system <br>. The human heart rate monitor designed in this paper is easy to use, just put the finger on the sensor <br>, and it can display the pulse rate per minute in real time, which is especially suitable for sports training and travel. <br>Using infrared optical detection method, heart rate measurement can be carried out in the state of exercise. The system runs stably, has strong <br>real-time performance, is safe and reliable, has good system versatility, is easy to transplant and expand, and has the characteristics of low power consumption, small size, <br>simple operation, and easy portability. It is suitable for family and community health care use. Early diagnosis of cardiovascular disease <br>is of great significance.

Over the years, heart rate monitor has played a significant role in the research and diagnosis of cardiovascular diseases<br>The bioelectrical signals recorded by doctors during cardiac activity have become an important basis for clinical diagnosis. Recently, test<br>Although there are many heart rate instruments, they can realize accurate measurement and portability like the system designed in this paper<br>However, there are few portable digital heart rate measuring devices with multiple functions such as alarm.<br>The system takes AT89C2051 single chip microcomputer as the core control chip and photoelectric pulse wave sensor to collect signals<br>The seven segment nixie tube is used as the display system, and the pulse is sent to the single chip microcomputer through the signal processing circuit<br>Displays the heart rate. The human heart rate monitor designed in this paper is easy to use, just put the finger end gently on the sensor<br>The pulse times per minute can be displayed in real time, which is especially suitable for sports training, traveling and other occasions.<br>Using infrared optical detection method, the heart rate can be measured in the state of movement. The system is stable and practical<br>It has the advantages of strong timeliness, safety and reliability, good universality of the system, convenient transplantation and expansion, low power consumption and small volume,<br>It has the characteristics of simple operation and easy to carry around. It is suitable for family and community medical care, and has the advantages of cardiovascular disease<br>Early diagnosis is of great significance.

Over the years, the heart rate monitor has played a significant role in the research and diagnosis of cardiovascular diseases. It The bioelectric signals recorded by scientists during cardiac activity have become an important basis for clinical diagnosis. A few days ago, test Although there are many heart rate instruments, it can measure heart rate accurately and easily, just like the system designed in this paper. There are not many portable digital heart rate measuring devices with various functions such as alarm. This system takes AT89C2051 MCU as the core control chip, and photoelectric pulse wave sensor collects signals. No.7, with seven digital tubes as the display system, the pulse is sent to the single chip microcomputer after the signal processing circuit, and the digital tubes Show heart rate. The human heart rate monitor designed in this paper is easy to use, just put your finger gently on the sensor. In fact, it can display the pulse times per minute in real time, which is especially suitable for sports training, traveling and other occasions. Using infrared optical detection method, the heart rate can be measured in the moving state. The system runs stably and practically. Time-sensitive, safe and reliable, good system universality, convenient transplantation and expansion, low power consumption, small size, Simple operation, easy to carry, etc., suitable for family and community medical care, especially for cardiovascular diseases. Early diagnosis is of great significance.