The human body pulse wave contains abundant physiological and pathological information. A large number of clinical results confirm that the characteristics of pulse wave are closely related to cardiovascular disease. The comprehensive information on the shape, intensity, rate and rhythm of the pulse wave does reflect to a large extent the many physiological and pathological features of the human cardiovascular system. Therefore, it is very important to obtain the pulse wave of the human body in an easy-to-understand way. 1 system structure diagram This paper proposes a design method for a healthy mouse that can monitor the pulse wave and heart rate of the human body. The internal structure of the system is divided into nine parts: reflective pulse wave photoelectric sensor, pulse wave signal filtering circuit, pulse wave signal amplification module, and mouse data. Acquisition module, mouse control module, mouse data and pulse wave data acquisition and processing shared MCU control module, data conversion transmission module, voltage conversion module and Micro USB interface. As shown in Figure 1. Figure 1 system structure diagram A signal containing a plurality of physiological parameters of the human body is collected by the reflective pulse wave photoelectric sensor, and then the signal is filtered and amplified by the pulse wave signal filtering circuit and the pulse wave signal amplifying module, and the data collected by the mouse data acquisition module is in the mouse data. The MCU control module shared with the pulse wave data acquisition and processing is collected, and after further processing, transmitted to the data conversion transmission module to form a signal form suitable for transmission to the computer end, and then transmitted to the computer through the Micro USB interface for further signal processing and display. 1.1 Reflective pulse wave photoelectric sensor Place the reflective pulse wave photoelectric sensor at the position where the thumb is in the normal use of the mouse (see Figure 2), using the HG40 series of reflective sensors, the infrared light-emitting diode as the fast light source, and the 3DU5 series phototransistor as the receiving tube to form the infrared Transmit-receive the tube. After the light is emitted from the fast light source of the infrared light-emitting diode, it passes through the skin and tissue. Except for a part of the light absorbed by the skin, muscles, blood and nails, part of it is reflected back by the blood, and is converted into an electrical signal by the 3DU5 series phototransistor. Filters with an external light source are available with a 1 cm diameter filter. Figure 2 Overall structure of the mouse 1.2 Signal preliminary processing circuit The circuit consists of two modules: a pulse wave signal filtering circuit and a pulse wave signal amplifying module, which filters and amplifies the signal. As shown in Figure 3 and Figure 4. Figure 3 pulse wave signal filter circuit Figure 4 Pulse wave data amplification module High Precision Distance Sensor Laser range sensors combine the advantages of a visible red sensing beam with the increased range of a laser. The optical distance sensor devices are Class 2 lasers, support Class 1 customized. The high precision autonics distance sensor is successfully be used to connect to Arduino, Raspberry Pi, with +-1mm to 3mm high accuray, and long-range solutions (max up to 150m) for your application. Precision Distance Sensor,Precision Laser Distance Sensor ,Precision Distance Sensor Laser,Accurate Laser Distance Sensor Chengdu JRT Meter Technology Co., Ltd , https://www.jrt-measure.com