| With the rapid developing of the society and economy, increasing of the living pressure, sub-health state gradually becoming normal in the human.. As a new treatment method, Somatosensory music vibration physiological feedback therapy is of great significance to the human body. It use the body sense of music and the low frequency vibration stimulation which has same frequency with music, making human body unconsciously get mental and physical treatment. At the same time to feedback patients’situation at the real time. So that, doctors can adjust the corresponding treatment according to the treatment situation.The main purpose of this project is to develop a body feeling music vibration with physiological information feedback function. This design mainly includes six parts: physiological information detection, low frequency vibration driver and PC parts, MCU circuit program design, computer visualization interface design, PC program design.This paper initial tells the story of the effects of music therapy to human body some and related contents of biomedical signals, physiological index introduction wihch can reflect the state of the human body, relevant physiological index of testing methods and relevant contents of biological sensors.Physiological information detection section contains the skin temperature and skin impedance parts. Skin temperature adopted widely used platinum resistance temperature sensor and the four wire method for acquisition. Acquisition of skin impedance using the method named wenner four electrode, which compose two pairs of four electrodes, respectively is sensitive electrode and electrode.Safety is a certain constant current value, through the incentive electrode into the body.The extraction of voltage signal by sensitive electrode.Two parts realize the detection of physiological information together, and trans the information with the upper machines.Low frequency vibration driving section contains signal amplifier circuit, filter circuit and audio output, vibration mattress. Filter circuit is the key point of this part. As the selection of filter method, I compared the hardware filter and software filter two kinds of methods. Due to low cost, easy to implement hardware filtering while filtering effect is poorer than software filtering. But I still choose the hardware filtering method, considering it both can realize the system function and cut the cost.Single chip circuit part implements of physiological information extraction and transmission with the upper computer. Lower machine part programming is mainly doing the programming operation to the signal transmission rate, transmission channel, and transmission method.Upper computer visual interface design is mainly according to needs to layout each interface information display window. In this paper, upper computer mainly use for realizing the patient information management, real-time monitoring of the process of treatment. Designed the patient records management, music therapy, user management, and serial communication interface for these purposes. In order to realize the management of the patient information, we use the database technology. ACCESS database was achieved by VB ADO controls within the data ACCESS, upper computer programming part achieve the realization of the function of each interface, control internal concrete and the connection and jump between the interface.In the upper computer, we also add the rapeutic effect evaluation system of neural network modeling. Through modeling, training at all levels of neurons, the system can be independent judgment treatment effect, so as to realize the process of artificial intelligence.In the debugging and the experiment, the system can stable operation and realize the various functions. In the clinical experiment, volunteers’physical indicators have improved after a period treatment. Mainly reflected in relaxing body and mind, releasing body fatigue, releasing negative emotions, etc. |
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