The research goal of this design is to design an integrated TCM four-diagnosis digital information health detection system, including circuit multi-module integration, sensor data acquisition, signal processing, upper computer production, data cloud platform establishment and other units, to complete the acquisition and analysis of TCM four-diagnosis digital information, realize the research of human health information monitoring based on the theory of traditional Chinese medicine. The four diagnostic methods of traditional Chinese medicine, such as looking, smelling, asking and cutting, are taken as an important basis for syndrome differentiation and treatment. The technical route of this project is to start with the traditional Chinese medicine diagnosis concept, combined with the digital collection equipment of four diagnostic information, detect the relevant physiological and pathological information of patients, and then realize health monitoring through the comprehensive analysis of deep learning algorithm. The digital information acquisition device for the four-diagnosis of traditional Chinese medicine is divided into four parts. The inspection part uses arc-shaped light guide structure and white light source to construct a natural light-like shooting environment to acquire images of the patient's face, eyes, tongue and other parts, and uses residual convolution neural network to extract features from the image data. The smell diagnosis part adopts the electronic acoustic sensor independently developed by north university of china to collect the patient's heart sound signal, and analyze the signal processing and extract features, the characteristics are input into the neural network, and the constructed heart sound identification model can realize abnormal diagnosis and screening of heart diseases, which is far higher than the detection level of most professional doctors. In the inquiry part, the basic situation of patients is comprehensively investigated and analyzed by means of questionnaire, the logical relationship of inquiry questions is sorted out, the inquiry database is established, effective information is collected, pathological characteristics are extracted, and the experience of clinical inquiry of traditional Chinese medicine is used for reference, dialectical judgment of reliability; In the cutting part, the bionic finger structure combined with MEMS high-sensitivity high-frequency response pressure sensor and flexible pipe is used to imitate the pulse fingering method of traditional Chinese medicine, collect the pulse wave of the patient's mouth and display it digitally, observe the pulse change, analyze the pulse characteristics of the patient in combination with traditional Chinese medicine pulse diagnosis, and use deep learning pulse recognition for clinical verification. Finally, the client uploads the collected original information of the complete four-diagnosis condition to the cloud big data platform, and uses the deep learning algorithm to calculate and comprehensively analyze the four-diagnosis pathological information, obtain the disease information, diagnosis results and provide the best diagnosis and treatment recommendations. This project has obtained 11 invention patents, 2 practical patents and 6 soft patents. Invention Patent: Wristband Pulse Diagnosis Instrument and System Integrated with Traditional Chinese Medicine Pulse Taking Sensor; Heart sound signal detection method and system based on deep learning model; Finger pulse-cutting device and system imitating traditional Chinese medicine; Traditional Chinese medicine acoustic diagnosis method and system; Smelling method and system imitating traditional Chinese medicine; Method and system for synchronous diagnosis based on ECG, heart sound and pulse; A heart sound acquisition device based on micro acceleration sensor; pressure pulse wave acquisition device; low noise electronic stethoscope and system; detection watch and its detection method; synchronous acquisition device of ECG and heart sound. Practical patent: low noise electronic stethoscope and system; ECG sound synchronous acquisition device. Soft works: stand-alone software of digital acquisition system for four diagnostic information of traditional Chinese medicine; Software of pulse wave acquisition and signal processing system of traditional Chinese medicine; Online software of digital acquisition system for four diagnostic information of traditional Chinese medicine; The software of digital inquiry system of traditional Chinese medicine is a software used for the collection and management of inquiry information of traditional Chinese medicine. The software of comprehensive information collection system of traditional Chinese medicine is a software used for information collection and comprehensive analysis of traditional Chinese medicine.